RU2596966C2 - Absorbing stretch product and gasket holder - Google Patents

Abstract

FIELD: hygiene.

SUBSTANCE: given absorbing stretch product (1) includes front external closing element (2A), rear external closing element (2B) and absorbing set (3), attached to said external closing elements so, that it passes between said external closing elements. Front external closing element (2A) includes sheet (22) of external layer, forming outer surface, and sheet (23) of inner layer arranged inside relative to sheet of external layer. Front external closing element (2A) has upper front zone (A2) and lower front zone (A3), wherein lower front zone (A3) is located closer to midline part than upper front zone (A2). In upper front zone (A2) sheet (22) of external layer and sheet (23) of internal layer are in non-connected state, and elastic elements (71) of upper front zone are in lateral direction (X) and attached to sheet (23) of internal layer.

EFFECT: moisture absorption.

31 cl, 9 dwg

Description

The present invention relates to a stretch absorbent article. The present invention also relates to a gasket holder, which is in the form of an annular belt and is used to hold the absorbent gasket.

In a known technical solution for a disposable pull-on diaper, elastic elements for the hips placed around the part located below the belt are attached to an element other than the sheet of the outermost layer and forming the outer surface of the diaper, and an unconnected zone is formed between the elastic elements for the hips and the sheet itself the outer layer, and thereby assemblies are formed on the inner side of the sheet of the outer layer itself, without the formation of any assemblies on the outer surface of the part, located below the belt (cf. Patent Literature 1). A pull-on disposable diaper of this type is preferable because it has a simple and clearly stylized appearance, since no assemblies are formed on the outer surface of the part located below the waist. In the continuous manufacture of such stretchable disposable diapers, through holes and / or cut-out portions are typically formed to form leg openings in the original ribbon-shaped textile material of the outer closure member including the sheet of the outermost layer, and unnecessary parts are cut out and removed.

In addition to the aforementioned type of disposable diaper, another known type of stretchable disposable diaper includes an outer closure member that is divided into a front outer closure member located on the abdomen side of the carrier and a rear outer closure member located on the back side of the wearer, while absorbing the kit is fixed so as to connect the front outer closure element and the rear outer closure element like a bridge, and more marketing front edge portions of the outer cover member are connected with the rear side edge portions of the outer cover (cf., for example, Patent Literatures 2 and 3). A diaper of this type differs from the diaper described in Patent Literature 1 in that there is no need to remove parts cut off from the starting textile material of the outer covering element and in that it is possible to reduce the number of scraps to be removed.

However, the outer closure of the diaper according to Patent Literature 2 and 3 is typically made by attaching elastic elements, such as rubber threads, in their stretched state between two sheet materials, and thus does not have an appearance similar to the appearance subject of underwear.

PATENT LITERATURE

Patent Literature 1: US 6306122 B1.

Patent Literature 2: US 2006/0244166 A1.

Patent Literature 3: JP 2010-233927 A.

In accordance with the present invention, there is provided a pull-on absorbent article including a front outer closure member positioned on the abdomen side of the carrier, a rear outer closure member positioned on the back side of the carrier, and an absorbent assembly attached to the front outer closure element and the rear outer closure element so as to connect them like a bridge, while the stretched absorbent article has parts that are side seams located at lateral edge portions of the front outer closure element and the rear outer closure element along the longitudinal direction and formed by joining together the front outer closure element and the rear outer closure element, wherein the stretch absorbent article thereby comprises an annular outer closure portion that includes a front outer closure member and a rear outer closure member that have been joined together. The front outer covering element includes a sheet of the outer layer and forming the outer surface, and a sheet of the inner layer and located inside with respect to the sheet of the outer layer. The front outer closure member has an upper front zone and a lower front zone, wherein the lower front zone is closer to the crotch than the upper front zone. In the upper front zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper front zone extend laterally and are attached to the sheet of the inner layer.

In accordance with the present invention, a gasket holder is also provided that includes an annular belt that includes a part located on the front side and placed on the abdomen side of the carrier, and a part located on the back side and placed on the back side of the carrier, while the ring-shaped the belt has parts representing side seams located on the respective lateral edge parts of the part located on the front side and the part located on the back side along the longitudinal direction phenomena and formed by joining together the part located on the front side and the part located on the back side, while the gasket holder is configured to fasten the absorbent pad so that the absorbent pad connects the part located on the front side and the part located on back side, like a bridge. A fastening means for attaching the absorbent pad is provided on a part located on the front side and a part located on the back side. The part located on the front side includes a sheet of the outer layer and forming the outer surface, and a sheet of the inner layer and located inside with respect to the sheet of the outer layer. The part located on the front side has an upper front zone and a lower front zone, while the lower front zone is closer to the lower edge of the hole of the annular belt than the upper front zone. In the upper front zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper front zone extend laterally and are attached to the sheet of the inner layer.

FIG. 1 is a perspective view illustrating a disposable pull-on diaper as a first embodiment of the pull-on absorbent article of the present invention.

FIG. 2 is an expanded plan view of the diaper illustrated in FIG. 1, wherein the diaper is shown on the side of the top sheet in a stretched and unfolded state.

FIG. 3 is a section taken along line III-III of FIG. 2.

FIG. 4 is a perspective view illustrating a disposable pull-on diaper as a second embodiment of the pull-on absorbent article of the present invention.

FIG. 5 is a sectional view of a pull-on disposable diaper illustrated in FIG. 4, with this section being taken along line V-V in FIG. four.

FIG. 6 is a section (corresponding to FIG. 5) illustrating a state in which an absorbent pad is attached to a skin-contacting surface of the disposable diaper illustrated in FIG. four.

FIG. 7 is a perspective view illustrating the gasket holder of the present invention.

FIG. 8 (a) and 8 (b) are perspective views, each of which illustrates how the absorbent pad is attached to the pad holder illustrated in FIG. 7.

The present invention relates to a pull-on absorbent article which, when worn, has a simple and clearly styled appearance and creates a soft feeling even though the outer closure element is divided into a front outer closure element and a rear outer closure element, and which can provide excellent breathability and moisture permeability.

The present invention will be described below in accordance with preferred variants of its implementation with reference to the drawings. FIG. 1-3 illustrate a pull-on disposable diaper 1 (hereinafter also referred to as “diaper 1”) as a first embodiment of the present invention. The diaper 1 includes a rectangular-shaped sheet, a front outer closure 2A that is placed on the abdomen side of the wearer when wearing a diaper, a rectangular-shaped sheet, a rear outer closure 2B that is placed on the back of the wearer, and an absorbent kit 3 attached to the front outer closure element 2A and the rear outer closure element 2B so as to connect them like a bridge. The lateral edge portions 2a, 2a of the front outer closure element 2A are connected to the lateral edge portions 2b, 2b of the rear outer closure element 2B, and thus, two portions 4, 4 representing the side seams are formed. Thus, an annular outer covering portion 10 is formed, formed by the front outer closing element 2A and the rear outer closing element 2B.

As illustrated in FIG. 1 and 2, the diaper 1, when worn, includes a part A located on the front side and placed on the abdomen side of the wearer, part B located on the back side and placed on the back side of the wearer, and a crotch part C located between part A located on the front side, and part B located on the back side, and placed in the crotch part of the carrier. The longitudinal direction of the diaper is the direction from the part A located on the front side to the part B located on the back side through the crotch part C, or the direction opposite to that (direction Y in FIG. 2). The lateral direction of the diaper is a direction extending along a direction around a portion below the waist of the wearer and is a direction orthogonal to the longitudinal direction (X direction in FIG. 2). Hereinafter, the longitudinal direction of the diaper is also called simply the direction of Y, and the lateral direction of the diaper is also called simply the direction of X.

The diaper 1 of this embodiment will be described in more detail. As illustrated in FIG. 2, the absorbent assembly 3 of the diaper 1 is formed with a rectangular shape that is elongated in the Y direction and includes a liquid permeable top sheet 31, liquid impermeable or water repellent back sheet 32, and an absorbent member 33 having the ability to hold liquids and located between the sheets 31, 32. The absorbent element 33 is formed of: an absorbent core formed from a combination of fibers, such as cellulose fibers (which may be a nonwoven material), or a core in which water-absorbing polymer particles are held in the aforementioned fiber population; and a sheet (not illustrated) for wrapping a core that covers the absorbent core. The absorption element 33 is also formed with a rectangular shape that is elongated in the Y direction.

Side cuffs 34, 34, formed of liquid-resistant or water-repellent and breathable material, are formed on the respective side parts of the absorbent assembly 3. The elastic elements 35 of the side cuffs are located in their stretched state near the free edge of each side cuff 34. When wearing the diaper 1, the side the cuffs 34 rise upward as a result of the elastic elements 35 of the side cuffs being pulled together and prevent lateral outflow of fluid from the absorbent assembly 3. Th Regarding the topsheet 31, backsheet 32 and absorbent core and a sheet wrapping the core provided in the absorbent member 33, it is possible to use elements which are similar to those commonly used in the absorbent article of this type. If necessary, the sheet of the outer layer, such as non-woven material or film, can be placed on the outside of the absorbent assembly 3 so that it overlaps the back sheet 32. However, no outer covering element is in the form of a part extending continuously from the front the outer closure element 2A and / or the rear outer closure element 2B is not located on the outside of the absorbent assembly 3.

The front outer closure member 2A has a rectangular shape with a longer lateral length in the state that the diaper 1 is straightened and stretched (cf. FIG. 2), and includes two side edge portions 2a, 2a extending along the Y direction and two that is, the upper and lower, edge parts 2c, 2d (upper edge part 2c and lower edge part 2d) extending along the X direction. Similarly, the rear outer cover element 2B has a rectangular shape with a longer lateral direction in a state where diaper 1 spread alen and stretched (cf. FIG. 2), and includes two side edge parts 2b, 2b extending along the Y direction and two, that is, upper and lower, edge parts 2c, 2d (upper edge part 2c and lower edge part 2d) extending along the X direction. As illustrated in FIG. 2, the length of the front outer closure element 2A and the rear outer closure element 2B determined in the Y direction is constant in the X direction. However, the length of the front outer closure element 2A determined in the longitudinal direction can be made larger than the length determined in the longitudinal direction a rear outer closure member 2B in a portion of the front outer closure member 2A, or a longitudinally defined length of the rear outer closure 2B th element can be made greater compared with the determined length in the longitudinal direction of the front outer cover 2A in some part of the rear of the outer cover member 2B. For example, the rear outer closure member 2B may extend in a longitudinal direction from portions 4, 4 representing the side seams towards the crotch portion C so as to close the buttocks. The fact is that it is only necessary that the front outer closure element 2A and the rear outer closure element 2B are not continuous in the crotch part and that the two outer closure elements are connected in parts 4, 4, which are side seams, and form an annular outer closure part 10.

The above two side seams 4, 4, which are side seams, are formed in the diaper 1 by connecting the side edge parts 2a of the front outer closure member 2A and the side edge parts 2b of the rear outer closure member 2B like compressed arms. Known bonding agents such as heat welding, high frequency welding, ultrasonic welding or adhesive can be used for this connection. In addition, as illustrated in FIG. 1, this connection also provides the formation of holes 5 for the waist and two holes 6, 6 for the legs in addition to parts 4, 4, which are side seams.

As illustrated in FIG. 3, the side of the absorbent assembly 3 at one end defined in the longitudinal direction (i.e., the part overlapping the front outer closure element 2A) is attached to the central — in the Y direction — zone of the front outer closure element 2A by means of an adhesive (not illustrated ) Similarly, the side at the other end defined in the longitudinal direction (i.e., the portion overlapping the rear outer cover member 2B) is attached to the central — in the Y direction — area of the rear outer cover member 2B by an adhesive (not illustrated).

In the description below with reference to FIG. 2 and 3, the structure of the front outer closure element 2A of the diaper 1 will be mainly explained, but the rear outer closure element 2B has the same structure unless otherwise indicated.

As illustrated in FIG. 3, the front outer closure member 2A of the diaper 1 includes a sheet 22a, which is an outer layer sheet 22, and an inner layer sheet 23. The central - in the Y direction portion of the sheet 22a, which is the outer layer sheet 22, is the outer layer sheet 22, which forms the outermost surface of the front outer cover element 2A. The sheet 23 of the inner layer is located next to the sheet 22 of the outer layer, on the side in contact with the skin of the surface of the sheet 22 of the outer layer. In the X direction, the sheet 22a, which is the sheet 22 of the outer layer, has the same shape as the sheet 23 of the inner layer. On the other hand, with regard to the Y direction, the sheet 22a, which is the sheet 22 of the outer layer, has not the same shape as the sheet 23 of the inner layer, but, as illustrated in FIG. 3, the sheet 22a, which is the sheet 22 of the outer layer, has an elongated portion 221 that extends in a longitudinal direction outward from that defined in the longitudinal direction of the edge of the sheet 23 of the inner layer, which is located next to the edge W of the waist opening. As illustrated in FIG. 3, this elongated portion 221 is bent toward the inner surface (the side of the skin-contacting surface) at the edge W of the waist opening. The edge W of the waist hole is the peripheral edge of the waist hole 5. The curved elongated portion 221 covers the skin-contacting surface of the additional sheet 24, which is located closer to the skin-contacting side than the inner layer sheet 23.

As illustrated in FIG. 2 and 3, the diaper 1 includes a substantially rectangular additional sheet 24 that covers the longitudinally defined edge 3W of the absorbent assembly 3. One additional sheet 24 is located on the front outer closure member 2A, and similarly, one additional sheet 24 is located on the rear outer closure element 2B. As illustrated in FIG. 3, one longitudinally-defined edge of the additional sheet 24 is located substantially in the same place as that longitudinally-defined edge of the inner layer sheet 23, which is located on the side of the edge W of the waist opening. On the other hand, the other longitudinally defined edge of the additional sheet 24 extends beyond the longitudinally defined edge 3W of the absorbent assembly 3 and extends onto the top sheet 31 of the absorbent assembly 3. Thus, the skin-contacting surface of the diaper 1 is formed by: an elongated portion 221 of the sheet 22a representing a sheet 22 of the outer layer; additional sheet 24 and top sheet 31.

As illustrated in FIG. 3, the front outer closure member 2A has an upper front zone A2 and a lower front zone A3, which is adjacent to the upper front zone A2 and is closer to the crotch portion C than the upper front zone A2. In other words, the lower front zone A3 is located closer to the crotch portion C than the upper front zone A2. In this embodiment, the front outer closure member 2A also has a waist zone A1, which includes a waist opening W of the waist. The waist zone A1 is adjacent to the upper front zone A2 and is located closer to the edge of the waist opening than the upper front zone A2. The upper front zone A2 is a zone located closer to the edge W of the waist opening than the longitudinally defined edge 3W of the absorbent assembly 3, which is attached from the side of its front outer covering element 2A, and is an area in which three layers formed sheets stacked on top of each other. In the diaper 1 of this embodiment, the upper front zone A2 is formed by the outer layer sheet 22, the inner layer sheet 23, and the additional sheet 24. Alternatively, the upper front zone A2 may be formed by a combination of three or more layers discretely selected from the outer sheet 22 a layer, an elongated portion 221, an inner layer sheet 23, and an additional sheet 24. In this embodiment, the upper front region A2 also includes a part formed by four layers, including an outer layer sheet 22, beats the inner part 221, the inner layer sheet 23, and the additional sheet 24. Although not illustrated, like the front outer closure element 2A, the rear outer closure element 2B of the diaper 1 includes a waist zone B1, an upper back zone B2 and a lower back zone B3 located in this order, from the side of the edge W of the waist opening towards the side of the crotch part C. It should be noted that in this description the upper front zone A2 and the upper rear zone B2 are collectively also referred to as the “upper lower belt zone ", and the lower front zone A3 and the lower rear zone B3 are collectively also called the" lower zone below the belt ". In the Y direction of the diaper 1, the waist zone A1, B1 extends from the edge W of the waist hole to that defined in the longitudinal direction of the edge of the sheet 23 of the inner layer, which is located on the side of the edge of the waist hole. In the Y direction of the diaper 1, the upper zone A2, B2 located below the belt extends from the lower end of one of the elastic elements 51 of the waist zone, which is closest to the crotch part C, to the upper end of the zone in which the outer layer sheet 22 and the inner sheet 23 layer, connected by adhesive N. In addition, in the Y direction of the diaper 1, the lower zone A3, B3 located below the belt extends from the upper end of the aforementioned zone, in which the outer layer sheet 22 and the inner layer sheet 23 are connected by adhesive H to its front edge portion 2d of the outer cover 2A (or the rear of the outer cover member 2B).

In the front outer closure element 2A, the waist zone A1 extends with a shape similar to the waist in the X direction of the diaper 1 along the edge W of the waist opening. In the waist zone A1, a plurality (in the illustrated example, five) of threadlike or ribbon-shaped elastic elements 51 of the waist zone are fixed between the sides of the bent elongated portion 221 of the sheet 22a, which is the sheet of the outer layer, so that they extend in the X direction of the diaper 1 in a state in which they are stretched in the X direction. The number of elastic elements 51 of the waist zone in the waist zone A1 is preferably three or more and more preferably five or more, and preferably twenty or less and more preferred about - fifteen or less. More specifically, preferably three to twenty, and more preferably five to fifteen elastic elements of the waist zone are arranged. As illustrated in FIG. 3, the elastic elements 51 of the waist zone are fixed by means of an adhesive (not illustrated) applied to essentially all inner surfaces located opposite each other by folding the elongated portion 221 of the sheet 22a, which is the outer layer sheet, in the waist zone A1. The elastic elements 51 of the waist zone are located so that they overlap the entire zone between the parts 4, 4, which are side seams, in the front outer covering element 2A. In the state of wearing the diaper 1, the collapse of the elastic elements 51 of the waist zone causes the formation of a plurality of folds or protrusions and recesses in the sheet 22 of the outer layer, and waist assemblies G1 are formed (cf. FIG. 1).

The upper front zone A2, adjacent to the waist zone A1, also extends with a belt-like shape in the X direction of the diaper 1. As illustrated in FIG. 3, in the upper front zone A2, the outer layer sheet 22 and the inner layer sheet 23 are in an unconnected state. In addition, in the upper front region A2, the filiform or ribbon-like elastic elements 71 of the upper zone below the belt extend in the X direction of the diaper 1 and are attached to the sheet 23 of the inner layer in a state in which they are stretched in the X direction. It should be noted that the expression “ the elastic elements 71 of the upper lower zone zone "refers to both the elastic elements of the upper front zone and the elastic elements of the upper back zone, and is used in this description when it applies separately to elastic elements of the upper anterior zone or to elastic elements of the upper posterior zone, or to elastic elements of both the upper abdominal zone and the upper posterior region. The elastic elements 71 of the upper zone below the belt are located between the sheet 23 of the inner layer and the additional sheet 24 and are attached to both the sheet 23 of the inner layer and the additional sheet 24. On the contrary, in the upper front zone A2 forming assemblies, elastic elements are not attached to sheet 22 of the outer layer. An adhesive (not illustrated) is used, for example, to attach elastic elements 71 to the upper zone below the belt. Preferably, two or more elastic elements 71 of the upper lower zone zone are provided, and preferably ten or less and more preferably five or less elastic elements 71 of the upper lower zone zone are provided. More specifically, preferably two to ten, and more preferably two to five elastic elements of the upper zone below the belt are provided. In the wearing state of the diaper 1, the pulling together of the elastic elements 71 of the upper zone below the belt causes a plurality of folds or protrusions and recesses to form in the inner layer sheet 23 and in the additional sheet 24, and internal assemblies (not illustrated) are formed. The inner assemblies are located inside with respect to the sheet 22 of the outer layer, which is in a state of no connection with the sheet 23 of the inner layer; thus, the inner assemblies will be less visible from the outside of the diaper 1. Thus, the outer layer sheet 22 has an appearance similar to the appearance of the underwear. In addition, as illustrated in FIG. 1, the sheet 22 of the outer layer, which is in a state of no connection with the sheet 23 of the inner layer, in the upper front region A2, will have a shape that is characterized by the presence of a convex portion R that protrudes outward from the diaper 1, due to the contraction of the inner assemblies, as a result, the user creates a feeling of softness and further improves the appearance in combination with an appearance similar to an underwear item.

In the present invention, the “unconnected state” is not limited to a state in which the outer layer sheet 22 and the inner layer sheet 23 are not connected on the entire surface between the side seams 4, 4 in the upper front region A2; instead, the “unconnected state” does not exclude and covers those cases in which the influence of the assemblies formed by the inner sheet is substantially suppressed, even if the two sheets are partially connected. Preferably, the diaper 1 is worn so that the upper anterior zone A2 or the upper posterior region B2 is in contact with the region extending from the iliac crest of the carrier to the anterior superior iliac spine. This is described in detail below. Preferably, in the upper front region A2, the percentage of the unconnected zone in which the outer layer sheet 22 and the inner layer sheet 23 are not connected to the entire area (in stretched condition) of the zone in which the inner layer sheet 23 is between parts 4, 4, representing the side seams, was 85% or more, and more preferably 90% or more. Furthermore, the longitudinally determined length L1 of the aforementioned unconnected zone is 1% or more — and more preferably 2% or more — and 12% or less — and more preferably 9.5% or less — relative to the entire longitudinally determined length L (cf. FIG. 2) of the diaper 1. More precisely, for reasons related to making a zone with excellent softness and texture in a wide range on the outer surface of the diaper and making the diaper creating a soft feeling, it is preferable that the length L1 be from 1 up to 12% and more preferably from 2 to 9.5% of the total length L. In addition, the upper front zone A2 is 5% or more - and more preferably 10% or more - and 70% or less - and more preferably 50 % or less, relative to the distance from the end of the waist hole to the end of the leg hole (i.e., the total longitudinally defined length of the side seam 4 of part A located on the front side). More precisely, for reasons related to providing an appearance that creates a feeling of softness and that is similar to the appearance of the underwear, and for reasons related to preventing the diaper from sliding down, and with the aim of softly but firmly holding the part located below the waistband, it is preferable that the length of the upper front zone A2 defined in the longitudinal direction is from 5 to 70% and more preferably from 10 to 50%. In addition, since the size of the convex zone is appropriate, it is less likely that the diaper will create a baggy feeling in the wearer, and the diaper with high efficiency will give the wearer a visual impression that the diaper is stretchable.

In the lower front zone A3, which is adjacent to the upper front zone A2 and located lower than the upper front zone A2 — that is, it is closer to the crotch portion C than the upper front zone A2 — the outer layer sheet 22 and the inner layer sheet 23 are connected together by adhesive N. Furthermore, in the lower front zone A3, the side of the skin contact surface of the sheet 23 of the inner layer and the back sheet 32 of the absorbent assembly 3 are joined together by an adhesive (not illustrated). The adhesive used to connect the sheet 22 of the outer layer and the sheet 23 of the inner layer is applied, for example, as a continuous layer to the entire surface or applied with a spiral or Ω-shaped pattern. On the other hand, the adhesive used to connect the side of the skin-contacting surface of the sheet 23 of the inner layer and the back sheet 32 of the absorbent assembly 3, or is applied so that it “runs” along the Y direction at some point in the region of the absorbent assembly 3 central to laterally, or applied to the entire area in which two connected sheets are opposite each other.

As illustrated in FIG. 2, in the lower front zone A3, filiform or ribbon-shaped elastic elements 91 of the lower zone located below the belt are located between the sheet 22 of the outer layer and the sheet 23 of the inner layer, in places located in the lateral direction outside from the corresponding lateral edges of the absorbent assembly 3, which extend along the direction Y. It should be noted that the expression “elastic elements 91 of the lower lower zone zone” refers to both the elastic elements of the lower front zone and the elastic elements of the lower back zone, and yes SG specification is used in those cases where it applies individually to the elastic members lower front area or toward the rear lower elastic members zone, or to both elastic members lower front zone and the rear lower zone. The elastic elements 91 of the lower zone below the belt extend along the X direction. The elastic elements 91 of the lower zone below the belt are attached to the sheet 22 of the outer layer, and to the sheet 23 of the inner layer, in their stretched state by adhesive (not illustrated). In the lower front zone A3, no elastic element 91 is located in the parts overlapping the absorbent set 3. In the natural state of the diaper 1, the elastic elements 91 of the lower zone below the belt are pulled together, causing many folds or protrusions and indentations in the outer sheet 22 and in the sheet 23 of the inner layer, and assemblies G3 are formed in the lower zone below the belt, as illustrated in FIG. one.

In the diaper 1 of this embodiment having the above construction, the outer layer sheet 22 and the inner layer sheet 23 are in an unconnected state in the upper front zone, and the inner assemblies (not illustrated) formed by tightening the elastic elements 71 of the upper front zone, located inside with respect to the sheet 22 of the outer layer. Thus, the inner assemblies will be less visible from the outer surface of the diaper 1, and thus, the diaper 1 has a simple and clearly styled appearance. In addition, due to the pulling force created by the internal assemblies, the diaper 1 is prevented from slipping down, etc. while wearing it. The diaper 1 sliding down is also effectively prevented by the pulling force created by the elastic elements 91 of the lower front zone located in the lower front zone. In addition, no outer closure element — in the form of a part, continuously extending from the front outer closure element 2A — is located in the crotch portion C, and therefore, even if the crotch portion C is deformed due to the wearer's posture when wearing the diaper, the diaper 1 is less susceptible the propagation of deformation in the front outer closure element 2A, and thus, the pulling / deformation of the front outer closure element 2A is effectively prevented. As a result, the outer layer sheet 22 can easily rise upward from the inner layer sheet 23, in the upper front region, and thus, the aforementioned convex portion R is successfully formed. Thus, the upper front region has excellent breathability and moisture permeability when the diaper is worn. In addition, the curl of the sheet 22 of the outer layer is prevented when the diaper is worn, and thus the diaper 1 has an excellent appearance.

As for the top sheet 31, the back sheet 32, the absorbent member 33, and the sheet intended to form the side cuffs 34 in the aforementioned diaper 1, it is possible to use, without particular limitation, various types of materials commonly used in absorbent articles, such as disposable diapers use. For example, with respect to the top sheet 31, for example, a single layer or multilayer nonwoven fabric or a porous film can be used. As for the back sheet 32, it is possible to use, for example, a polymer film or a laminate of a polymer film and non-woven material. As for the absorbent element 33, it is possible to use an element formed from: an absorbent core formed from a combination of fibers, such as cellulose fibers (which may be a nonwoven material), or an absorbent core in which particles of the polymer absorbing water are held in the aforementioned fiber aggregates; and a sheet for wrapping the core, such as sanitary paper, which covers the absorbent core.

In addition, with regard to the outer layer sheet 22, the inner layer sheet 23, and the additional sheet 24, various types of sheet materials commonly used in absorbent articles, such as disposable diapers, can be used without particular limitation. For reasons related to increasing air permeability and moisture permeability in the upper front region A2, it is preferable that these sheets 22, 23, 24 have air permeability, and the use of non-woven material is particularly preferred. As for the non-woven material, various types of non-woven materials, such as non-woven materials obtained by the aerodynamic method of forming the canvas (by passing air through), non-woven materials of a spunbond production method (spunbond), non-woven materials obtained by hydro-entangling, non-woven materials obtained by the aerodynamic method from melt, or non-woven materials bonded by heated rollers, can preferably be used in the form of a single layer non-woven material or in the form of a laminated nonwoven fabric in which these nonwoven fabrics are bonded by laminating two or more layers. As for these sheets 22, 23, 24, it is also possible to use, for example, a sheet obtained by combining a nonwoven material and a film into a single whole.

Examples of materials intended to form elastic elements 51, 71, 91 include synthetic rubbers such as styrene butadiene, butadiene, isoprene and neoprene, natural rubber, ethylene vinyl acetate (EVA) copolymer, easily stretchable polyolefins, polyurethane and the like. As for the shape of the elastic elements, it is possible to use threadlike elements (rubber threads, etc.) correspondingly having a cross section with the shape of a rectangle, square, circle, ellipse or polygon, ribbon-like elements (rubber bands, etc.) or threadlike elements of the type of complex thread. The thickness of the elastic elements 51, 71, 91 is preferably 310 dtex or more, more preferably 470 dtex or more, and even more preferably 620 dtex or more. In addition, the thickness is preferably 1670 decitex or less, and more preferably 940 decitex or less. More precisely, the thickness of the elastic elements is preferably from 310 to 1670 decitex, more preferably from 470 to 1670 decitex, and even more preferably from 620 to 940 decitex. In particular, with regard to the elastic elements 71 of the upper zone below the belt, it is preferable that the thickness is 470 decitex or more - and more preferably 620 decitex or more - and 1670 decitex or less, and more precisely, preferably from 470 to 1670 decitex and more preferably from 620 to 1670 dtex, taking into account the fact that both a feeling of comfort when wearing the diaper should be provided, as well as preventing the diaper from sliding down, as well as preventing the situation when the elastic elements leave marks on the skin, slipped ku they are located on the side in contact with the skin of the wearer. As for the elastic elements 91 of the lower zone below the belt, it is preferable that the thickness is 310 dtex or more - and more preferably 470 dtex or more - and 680 dtex or less, and more precisely, preferably from 310 to 680 dtex and more preferably - from 470 to 680 dtex for reasons related to providing a comfortable feeling when wearing the diaper and preventing the diaper from sliding down, as well as for reasons related to providing a simple and clearly styled appearance and holding element absorbs sufficiently. In addition, for reasons related to the reliable provision of the above effects and the weakening of the sensation of a tightened product, it is preferable that the elastic elements 91 of the lower lower zone of the zone are thinner than the elastic elements 71 of the upper lower zone of the zone and the number of elastic elements 91 the lower zone located below the belt was more than the number of elastic elements 71 of the upper zone located below the belt. More precisely, it is preferable that the elastic elements of the lower front zone are thinner than the elastic elements of the upper front zone, and that the number of elastic elements of the lower front zone is greater than the number of elastic elements of the upper front zone. It is also preferred that the elastic elements of the lower back zone are thinner than the elastic elements of the upper back zone and that the number of elastic elements of the lower back zone is greater than the number of elastic elements of the upper back zone. The interval for accommodating the elastic elements 51 of the waist zone is preferably 1 mm or more and more preferably 2 mm or more, and preferably 15 mm or less and more preferably 10 mm or less. More specifically, the placement interval is preferably from 1 to 15 mm, and more preferably from 2 to 10 mm. The interval for accommodating the elastic members 71 of the upper zone below the belt is preferably 2 mm or more and more preferably 3 mm or more, and preferably 40 mm or less and more preferably 30 mm or less. More specifically, the placement interval is preferably from 2 to 40 mm and more preferably from 3 to 30 mm. The interval for accommodating the elastic elements 91 of the lower zone below the belt is preferably 2 mm or more and more preferably 3 mm or more, and preferably 15 mm or less and more preferably 10 mm or less. More specifically, the placement interval is preferably from 2 to 15 mm, and more preferably from 3 to 10 mm.

Next, the second and third embodiments of the present invention will be described with reference to FIG. 4-8. As for these embodiments, only elements / features that differ from elements / features of the first embodiment will be explained, and the detailed description given for the first embodiment is applicable accordingly for elements that are not explained in detail. In addition, in FIG. 4-8, the same reference numerals are used for elements that are the same as elements in FIG. 1-3.

The second embodiment illustrated in FIG. 4-6 differs from the first embodiment in how the absorbent assembly 3 is connected to the front outer closure member 2A and the rear outer closure member 2B. In the diaper of the first embodiment, the absorbent assembly 3 is attached from its outer surface to the inner surface of the front outer closure member 2A and the rear outer closure member 2B. In contrast, in this embodiment, the absorbent assembly 3 is attached from its inner surface to the outer surface of the front outer closure member 2A and the rear outer closure member 2B. More specifically, the absorbent assembly and the outer closure elements are connected and fastened so that the top sheet of the absorbent assembly 3 will be located opposite the outer surface of the front outer closure element 2A and the rear outer closure element 2B.

More specifically, the outer layer sheets 22, each of which forms the outer surface of the front outer cover element 2A and the outer surface of the rear outer cover element 2B, are placed opposite the top sheet 31 of the absorbent assembly 3, and in this state, the connecting sheet 25 is placed so that the connecting the sheet 25 overlaps each longitudinally defined edge 3W of the absorbent assembly 3. The connecting sheet 25 is essentially a rectangle that is elongated in the X direction. The connecting sheet 25 covers the back sheet 32 near the edge 3W of the absorbent assembly 3, and also closes the outer layer sheet 22 near the edge 3W. At a location near the longitudinally defined lower edge 25b of the connecting sheet 25, the connecting sheet 25 and the back sheet 32 of the absorbent assembly 3 are joined together by adhesive. In addition, at a location near the longitudinal edge 25a of the connecting sheet 25, the connecting sheet 25 and the outer layer sheet 22 are joined together by an adhesive. Preferably, the place at which the connecting sheet 25 and the outer layer sheet 22 are joined together is located in the lower zones below the waistband zones A3, B3 of the front outer closure member 2A and the rear outer closure member 2B. In addition, if necessary, in addition to the aforementioned connection, the connecting sheet 25 and the outer layer sheet 22 can be connected at the locations of the respective longitudinal side edges of the connecting sheet 25 along the Y direction.

As for the connecting sheet 25, it is possible to use, for example, various types of nonwoven materials or films without particular limitation.

By connecting the absorbent assembly 3 with the front outer closure 2A and the rear outer closure 2B in accordance with the above configuration, a pocket portion P is formed between the front outer closure 2A and the absorbent 3, as illustrated in FIG. 5. The pocket portion P is formed from the space bounded by the outer layer sheet 22 and the upper sheet 31, and is open in a downward direction at the location of the lower edge portion 2d of the front outer cover element 2A. Although not illustrated, a pocket portion of the same construction is also formed in the rear outer cover member 2B.

The diaper 1 of the second embodiment having the above structure provides the same effects as the effects of the first embodiment described above. In addition, the diaper 1 of this embodiment provides an effect in that it can be easily used in combination with an absorbent pad (also called an auxiliary / extra pad). This effect will be described with reference to FIG. 6.

Similar to the absorbent assembly 3 described above, the absorbent pad 103 is formed with a longitudinally elongated shape, and typically includes a liquid permeable top sheet 131, liquid impermeable or water-repellent back sheet 132 and having the ability to hold liquids , an absorbing element 133 located between these sheets. The absorbent pad 103 is used to facilitate the absorption of liquid by the absorbent kit 3 of the diaper 1, and in order to reduce the number of times that the diaper 1 needs to be replaced. The absorbent pad 103 is used so that the outer surface of the back sheet 132 will be placed on the top sheet 31 so that it is opposite the top sheet 31 of the diaper 1. When the diaper 1 is worn, the position in which the absorbent pad 103 is located may deviate from correct position due to media movements, etc. To prevent this, the diaper 1 of this embodiment is configured such that the front and rear longitudinally defined end zones of the absorbent pad 103 can be inserted into respective parts P of the diaper 1, which are pockets, as illustrated in FIG. 6. By inserting the end zones into respective portions of the pockets, it can effectively prevent a shift in the position in which the absorbent pad 103 is placed even without attaching the outer surface of the back sheet 132 of the absorbent pad 103 to the top sheet 31 of the diaper 1 by means of a connection such as double-sided adhesive tape or Velcro closure. In addition, the absorbent pad 103 can be attached to the diaper 1 simply by performing a simple operation of inserting the end zones into the pockets, which are pockets, and furthermore, the absorbent pad can be easily removed. It should be noted that the parts P, which are pockets, can be used in combination with a means of connection, such as double-sided adhesive tape or Velcro fastener.

The embodiments described above relate to pull-on disposable diapers, while the embodiment illustrated in FIG. 7 and 8, refers to the gasket holder. The gasket holder is used in combination with the absorbent pad and is used to fix the absorbent pad to the wearer's body. The gasket holder 100 illustrated in FIG. 7 is equivalent to a disposable pull-on diaper according to the aforementioned embodiment without an absorbent assembly. The pad holder 100 includes a portion 102A located on the front side and placed on the stomach side of the carrier, and a portion 102B located on the rear side and placed on the back side of the carrier. The design of the portion 102A located on the front side and the portion 102B located on the rear side is the same as the structure of the front outer closure member 2A and the rear outer closure member 2B in the disposable pull-on diaper of the aforementioned embodiment. The portion 102A located on the front side and the portion 102B located on the rear side have the same shape and are substantially rectangular. The gasket holder 100 is made in the form of an endless annular belt due to the fact that it has two parts 104, 104, which are side seams and formed by connecting the corresponding side edge parts of the part 102A located on the front side and the part 102B located on the back side in a state in which the side edge portions, the upper edge portion 102a and the lower edge portion 102d of each of the portion 102A located on the front side and the portion 102B located on the rear side were placed in a predetermined position and superimposed on each other. Thus, the gasket holder 100 has an upper hole and a lower hole.

The pad holder 100 includes a plurality of elastic waistband elements 151 located along the edge W ′ of the upper opening, which is provided at the upper opening. The elastic elements 151 of the waist zone extend in the X direction. The state in which the elastic elements 151 of the waist zone are fixed is the same as the state in which the elastic elements 51 of the zone are fixed according to the first and second embodiments. In addition, the pad holder 100 includes a plurality of elastic members 191 of the lower lower zone zone located along the lower edge portion 102d at a location adjacent to the lower edge portion 102d. The elastic elements 191 of the lower zone below the belt extend in the X direction. The state in which the elastic elements 191 of the lower zone below the belt are fixed is the same as the state in which the elastic elements 91 of the lower zone below the belt are fixed according to the first and second embodiments . The tightening of the elastic elements 151 of the waist zone and the elastic elements 191 of the lower zone below the belt causes the formation of waist assemblies G1 and assemblies G3 of the lower front zone in the part 102A located on the front side and in the part 102B located on the back side.

The portion 102A located on the front side has: a waist zone A1, an upper front zone A2, which is adjacent to the waist zone A1 and located closer to the side of the lower edge portion 102d than the waist zone A1, and a lower front zone A3, which is adjacent to the upper the front zone A2 and is located closer to the lower edge portion 102d than the upper front zone A2. In other words, the lower front zone A3 is located closer to the lower edge portion 102d than the upper front zone A2. Similarly, the rear portion 102B has a waist zone B1, an upper back zone B2 and a lower back zone B3. The design of the waist zones A1, B1, the upper lower lying zones of the zones A2, B2 and the lower lower lying zones of the zones A3, B3 is the same as the design of the outer covering elements according to the first and second embodiments. In the Y direction of the gasket holder 100, the waist zone A1, B1 extends from the edge W ′ of the upper hole to the longitudinally defined edge of the sheet (not illustrated) of the inner layer, which is located on the side of the edge of the waist hole. The upper zone A2, B2 below the belt is a zone located closer to the edge W ′ of the upper hole than the longitudinally defined edge of the fastening means 140, which is located on the side of the edge of the waist opening, each fastening means 140 being placed on a part 102A, located on the front side, and on the part 102B, located on the rear side, while the upper zone A2, B2 located below the belt is a zone in which three layers formed by sheets are superimposed. The upper zone A2, B2 located below the belt is formed by a combination of three or more layers discretely selected from the sheet of the outer layer, the elongated part, the sheet of the inner layer, and an additional sheet. In the Y direction of the gasket holder 100, the upper zone A2, B2 below the belt corresponds to a zone intended to accommodate a plurality of elastic elements (not illustrated) of the upper zone below the belt, which are attached and secured between the sheet of the inner layer and the additional sheet (both not illustrated). The lower zone A3, B3 located below the belt is a zone located closer to the lower edge part 102d (the edge of the lower hole) than the elastic element of the upper zone located below the belt from the set of elastic elements (not illustrated) of the upper zone located below the belt the bottom side. Preferably, the pad holder 100 is worn so that the upper anterior area A2 or the upper posterior area B2 is in contact with the area extending from the iliac crest of the carrier to the anterior superior iliac spine. This is described in detail below. The longitudinally determined length L1 ′ of the unconnected zone in which the sheet of the outer layer and the sheet of the inner layer are not connected is 3% or more - and more preferably 6% or more - and 40% or less - and more preferably 35% or less than with respect to the entire longitudinal length L ′ (cf. FIG. 7) of the gasket holder 100. More precisely, for reasons related to making a zone with excellent softness and texture over a wide range on the outer surface of the gasket holder and to making the gasket holder feel soft, it is preferable that the length L1 ′ is from 3 to 40% and more preferably from 6 up to 35% of the entire length L ′.

In the upper zones A2, B2 located below the belt, in the portion 102A located on the front side and the portion 102B located on the back side, the outer layer sheet 122 and the inner layer sheet (not illustrated) are in an unconnected state. Due to this unconnected state and by pulling together the aforementioned belt assemblies G1 and the assemblies G3 of the lower front zone, the outer layer sheet 122, in each upper zone A2, B2 located below the belt, takes such a shape that it will have a convex part R that protrudes outward gasket holder 100.

The pad holder 100 is configured to fasten the absorbent pad in such a way that the absorbent pad will connect the portion 102A located on the front side and the portion 102B located on the rear side, like a bridge. There are approximately two methods for attaching the absorbent pad, similar to those illustrated in FIG. 8 (a) and 8 (b). In the attachment method illustrated in FIG. 8 (a), the absorbent pad is attached in such a way that the side of the skin contact surface of the additional sheet 124, which is the skin contact surface of the pad holder 100, is opposite the outer surface of the back sheet 132 of the absorbent pad 103. For this mount, attachment means 140 provided on the side of the skin-contacting surface of the additional sheet 124 in a central — laterally — zone in each of a portion 102A located on the front side and a portion 102 Situated on the rear side. In this case, it is preferable to place the attachment means 140 so that it extends in the X direction at a location near the lower edge portion 102d of each of the portion 102A located on the front side and the portion 102B located on the rear side. In addition to or instead of these fastening means, fastening means (not illustrated) may be provided on the outer surface of the back sheet 132. In cases where the fastening means are provided on the outer surface of the back sheet 132, it is preferable to place the fastening means so that it extends in the X direction a certain place in each of the front and rear, defined in the longitudinal direction, end zones of the absorbent pad 103. In those cases where the fastening means are provided on contact with the surface of the additional sheet 124, and in cases where the fastening means is provided on the outer surface of the back sheet 132, for example, a double-sided adhesive tape or hook element or an element with Velcro fastener loops can be used.

In the attachment method illustrated in FIG. 8 (b), the absorbent pad is attached so that the outer surface of the outer layer sheet 122, which is the outermost surface of the pad holder 100, is placed opposite the inner surface of the top sheet 131 of the absorbent pad 103. For this fastening, attachment means 140 are provided on the outer the surface of the sheet 122 of the outer layer, in a central — lateral direction — zone in each of a portion 102A located on the front side and a portion 102B located on the rear side. In this case, it is preferable to place the attachment means 140 so that it extends in the X direction at a location near the lower edge portion 102d of each of the portion 102A located on the front side and the portion 102B located on the rear side. In addition to or instead of these fastening means, fastening means (not illustrated) may be provided on the outer surface of the top sheet 131. In this case, it is preferable to place the fastening means so that it extends in the X direction at some place in each of the front and rear, defined in longitudinal the direction of the end zones of the absorbent pad 103. Materials similar to those illustrated in FIG. 8 (a).

When using the gasket holder 100 of this embodiment, the absorbent gasket 103 can be easily attached and removed. In addition, the pad holder 100 has a simple and clearly styled appearance that makes it look like an underwear item. In addition, in the state where the absorbent pad 103 is attached, slipping of the pad holder 100 down is effectively prevented by the elastic elements 151 of the waist zone, the elastic elements (not illustrated) of the upper lower zone and the elastic elements 191 of the lower lower zone. In addition, since the gasket holder 100 and the absorbent pad 103 are separate, even if the absorbent pad 103 is deformed due to the posture of the wearer when the product is worn, the product is less prone to deforming to the front portion 102A and / or the rear portion 102B side, and thus, tension / deformation of the portion 102A located on the front side and / or the portion 102B located on the rear side is effectively prevented. As a result, the outer layer sheet 122 can easily rise upward from the sheet (not illustrated) of the inner layer in the upper zone A2, B2 located below the belt, as in the first and second embodiments, and thus the upper zone A2, B2 located below the belt It has excellent breathability and moisture permeability when wearing the gasket holder.

The present invention has been described above in accordance with its preferred embodiments, but the present invention is not limited to the above embodiments. For example, in the first and second embodiments, the outer layer sheet 22 and the inner layer sheet 23 are in an unconnected state, and the elastic members 71 of the upper zone below the belt are attached to the inner layer sheet 23 in the upper zones A2, B2 located below the belt as in the front outer closure element 2A and in the rear outer closure element 2B; however, this configuration should only be provided in at least the front outer closure element 2A, and a configuration different from the front outer closure element 2A can be used in the rear outer closure element 2B. This applies to the portion 102A located on the front side and the portion 102B located on the rear side in the third embodiment. It should be noted that in cases where the fastening tapes used for removal are placed on the surface of the outer layer sheet 22, in the part B located on the rear side, the outer layer sheet 22 and the inner layer sheet 23 can be joined together in these parts for reliable attaching fastening tapes to the sheet of the outer layer. In this case, it is preferable that in the part B located on the rear side, the total area of the connected parts is 20% or less and more preferably 15% or less relative to the area of the upper back zone B2.

In addition, the elastic elements 91 of the lower zone below the belt need not be used in the above embodiments. Alternatively, the elastic elements 91 of the lower zone below the belt may be attached to the sheet of the inner layer.

The first and second embodiments are examples in which the present invention is applied to a disposable pull-on diaper, but the stretch absorbent article of the present invention can be applied in a similar manner to other absorbent articles, such as panty type absorbent pads.

In addition, in the first and second embodiments, one end zone from the front and rear, defined in the Y direction, end zones of the absorbent assembly 3 can be attached to the front outer closure element 2A or the rear outer closure element 2B as provided in accordance with the first an embodiment, and the other end zone of the absorbent assembly 3 may be attached to the front outer closure element 2A or the rear outer closure element 2B as provided in in accordance with the second embodiment. Similarly, in the third embodiment, one end zone of the front and rear, defined in the Y direction, end zones of the absorbent pad 103 may be connected to the pad holder 100 as illustrated in FIG. 8 (a), and the other end zone of the absorbent pad 103 may be connected to the pad holder 100 as illustrated in FIG. 8 (b). In addition, in the third embodiment, for attaching the absorbent pad, a support sheet overlapping the crotch portion C can be attached and placed so that it extends between the front portion A and the rear portion B of the annular gasket holder 100.

In addition, the waist zone is optionally provided in the present invention. For example, in the first embodiment, the waist zone exists in a portion further outward in the Y direction than the longitudinally defined edge of the inner layer sheet 23, which is located on the side of the edge W of the waist opening in the front outer covering element. However, for example, that edge of the sheet 23 of the inner layer, which is located on the side of the edge W of the waist hole, can be “extended” to the edge W of the waist hole, and the entire part located further outward in the Y direction than the edge defined in the longitudinal direction 3W of the absorbent assembly 3, in the front outer closure member 2A, can be regarded as an “upper front zone” so that no “waist zone” is provided.

In connection with the above embodiments, in accordance with the present invention, the following stretch absorbent articles and gasket holders are further disclosed.

<1> A pull-on absorbent article comprising a front outer closure member placed on the abdomen side of the wearer, a rear outer closure member placed on the back of the wearer, and an absorbent assembly attached to the front outer closure member and the rear outer closure member so as to connect them like a bridge, while the stretched absorbent product has parts representing side seams located on the respective side edge parts of the front outer closure of the lining element and the rear outer closure element along the longitudinal direction and formed by joining together the front outer closure element and the rear outer closure element, wherein the pull-on absorbent article thereby comprises an annular outer closure portion that includes the front outer closure element and the rear an outer closure element that has been joined together in which:

the front outer covering element includes a sheet of the outer layer and forming the outer surface, and the sheet of the inner layer and located inside with respect to the sheet of the outer layer;

the front outer closure member has an upper front zone and a lower front zone, wherein the lower front zone is closer to the crotch than the upper front zone; and

in the upper front zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper front zone extend laterally and are attached to the sheet of the inner layer.

<2> A stretch absorbent article according to <1>, wherein the front outer closure member has a waist zone, an upper front zone and a lower front zone, arranged in this order from the side of the edge of the waist opening toward the side of the crotch portion.

<3> A stretchable absorbent article according to <1> or <2>, wherein in the lower front zone, the elastic elements of the lower front zone extend laterally and are attached to the sheet of the outer layer, or to the sheet of the inner layer.

<4> A stretchable absorbent article according to <3>, wherein the elastic element of the lower front zone located in the lower front zone has a thickness / linear density of 310 decitex or more and preferably 470 decitex or more and 680 decitex or less.

<5> A stretch absorbent article according to <3> or <4>, in which the elastic elements of the lower front zone are thinner than the elastic elements of the upper front zone and the number of elastic elements of the lower front zone is greater than the number of elastic elements of the upper front zone.

<6> A stretch absorbent article according to any one of paragraphs <1> to <5>, wherein:

the rear outer covering element includes a sheet of the outer layer and forming the outer surface, and the sheet of the inner layer and located inside with respect to the sheet of the outer layer;

the rear outer closure member has an upper back zone and a lower back zone, wherein the lower back zone is closer to the crotch than the upper back zone; and

in the upper back zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper back zone extend laterally and are attached to the sheet of the inner layer.

<7> A stretch absorbent article according to any one of <1> to <6>, wherein the rear outer closure member has a waist zone, an upper back zone and a lower back zone, arranged in this order from the side of the edge of the waist opening toward the side perineal part.

<8> A stretch absorbent article according to <6>, wherein in the lower back zone, the elastic elements of the lower back zone extend laterally and are attached to the sheet of the outer layer.

<9> A stretch absorbent article according to <6> or <8>, in which the elastic elements of the lower back zone are thinner than the elastic elements of the upper back zone and the number of elastic elements of the lower back zone is greater than the number of elastic elements of the upper back zone.

<10> A stretch absorbent article according to <6>, <8> or <9>, in which the elastic elements of the upper front zone and the elastic elements of the upper rear zone are located between the sheet of the inner layer and the additional sheet.

<11> The stretch absorbent article of <6>, <8>, <9> or <10>, wherein the stretch absorbent article is worn in such a way that the upper front zone or upper rear zone contacts the zone extending from the iliac crest of the carrier to the anterior superior iliac spine.

<12> A stretch absorbent article according to any one of <1> to <11>, wherein in any one of the rear outer closure member and the front outer closure element, or both in the rear outer closure element and the front outer closure element sheet, which is a sheet of the outer layer, has, with respect to the lateral direction, the same shape as the sheet of the inner layer.

<13> A stretch absorbent article according to any one of <1> to <11>, wherein in any one of the rear outer closure element and the front outer closure element or both in the rear outer closure element and the front outer closure element sheet, which is a sheet of the outer layer, has, with respect to the longitudinal direction, an elongated portion that extends in the longitudinal direction outward from the longitudinally defined edge of the sheet of the inner layer.

<14> A stretchable absorbent article according to any one of <1> to <13>, wherein the stretchable absorbent article includes a rectangular additional sheet that covers the longitudinally defined edge of the absorbent assembly.

<15> A stretchable absorbent article according to <14>, wherein one longitudinally-defined edge of the additional sheet is located at the same location as the longitudinally-defined edge of the sheet of the inner layer.

<16> A stretchable absorbent article according to <15>, wherein the elongated portion of the sheet, which is a sheet of the outer layer, is bent toward the inner surface at the edge of the waist opening.

<17> A stretchable absorbent article according to <16>, wherein the folded elongated portion covers the skin-contacting surface of the additional sheet, which is closer to the skin-contacting side than the sheet of the inner layer.

<18> A stretchable absorbent article according to any one of <1> to <17>, wherein the absorbent assembly is attached from its outer surface to the inner surface of the front outer closure element and the rear outer closure element.

<19> A stretchable absorbent article according to any one of <1> to <17>, wherein the absorbent assembly is attached from its inner surface to the outer surface of the front outer closure element and the rear outer closure element.

<20> A stretchable absorbent article according to paragraph <19>, wherein: a sheet of a front outer covering element forming an outer layer and a sheet of a rear outer closing element forming an outer layer are located opposite the upper sheet of the absorbent assembly; and in this state, the connecting sheet is arranged so that it overlaps each longitudinally defined edge of the absorbent assembly.

<21> A stretch absorbent article according to paragraph <20>, wherein:

at a location near the longitudinal edge of the lower edge of the connecting sheet, the connecting sheet and the back sheet of the absorbent assembly are joined together by adhesive; and

at a location near the longitudinal edge of the upper edge of the connecting sheet, the connecting sheet and the outer layer sheet are joined together by adhesive.

<22> The stretch absorbent article according to <21>, wherein the place, the connecting sheet and the sheet of the outer layer are joined together, is located in the lower front region of the front outer closure element and in the lower rear region of the rear outer closure element.

<23> A stretchable absorbent article according to any one of paragraphs <19> to <22>, wherein pockets are formed, each pocket portion being bounded by a front outer cover sheet forming an outer layer and an absorbent set top sheet , and forming the outer layer of the sheet of the rear outer covering element and the upper sheet of the absorbent set.

<24> A stretchable absorbent article according to paragraph <23>, wherein a double-sided adhesive tape or Velcro fastener (fastening means with hooks and loops) is provided in the pocket portion.

<25> A stretch absorbent article according to any one of <1> to <24>, wherein the longitudinally determined length of the front outer closure member and the rear outer closure member is constant / identical in the lateral direction.

<26> A stretch absorbent article according to any one of <1> to <24>, wherein:

the length of the front outer closure element determined in the longitudinal direction is larger than the length of the rear outer closure element determined in the longitudinal direction in some part of the outer closure element; or

the longitudinally defined length of the rear outer closure member is larger than the longitudinally defined length of the front outer closure element in a portion of the rear outer closure element.

<27> A stretchable absorbent article according to <26>, wherein the rear outer closure element extends in a longitudinal direction so that it will be closer to the crotch portion than the portions representing the side seams.

<28> A drawable absorbent article according to paragraphs <2> - <27>, in which the elastic elements of the waist zone are located in the waist zone so that they extend laterally and overlap the entire zone between the portions representing the side seams in the front outer closure element.

<29> A stretchable absorbent article according to any one of <1> to <28>, wherein in the upper front zone, when it is stretched, the percentage of the unconnected zone, in which the sheet of the outer layer and the sheet of the inner layer are not connected, to the entire area the area in which the sheet of the inner layer is present between the portions representing the side seams is 85% or more and more preferably 90% or more.

<30> A stretchable absorbent article according to any one of paragraphs <1> to <29>, wherein in the upper front region when it is stretched, the longitudinally determined length of the unconnected zone in which the sheet of the outer layer and the sheet of the inner layer are not connected is 1 % or more and more preferably 2% or more with respect to the entire stretchable absorbent article in the longitudinal direction.

<31> The stretch absorbent article according to any one of <1> to <30>, wherein in the upper front region when it is stretched, the longitudinally determined length of the unconnected zone in which the outer layer sheet and the inner layer sheet are not connected is 12 % or less and more preferably 9.5% or less with respect to the entire longitudinally determined length of the stretch absorbent article.

<32> A stretchable absorbent article according to any one of <1> to <31>, wherein the upper front zone is 5% or more and more preferably 10% or more relative to the length from the end of the waist hole to the end of the leg hole.

<33> A stretchable absorbent article according to any one of <1> to <32>, wherein the upper front region is 70% or less and more preferably 50% or less relative to the length from the end of the waist hole to the end of the leg hole.

<34> A stretchable absorbent article according to any one of <1> to <33>, wherein in the lower front zone, filamentary or ribbon-like elastic elements of the lower front zone are located between the sheet of the outer layer and the sheet of the inner layer in places laterally outside side edges of the absorbent kit.

<35> A stretch absorbent article according to any one of <1> to <34>, wherein the elastic element of the upper front zone located in the upper front zone has a thickness / linear density of 470 decitex or more and preferably 620 decitex or more and 1670 dtex or less.

<36> A gasket holder comprising an annular belt, which includes a part located on the front side and placed on the side of the abdomen of the carrier, and a part located on the back side and placed on the side of the back of the carrier, while the ring-shaped belt has parts that are side seams located on the respective side edge parts of the part located on the front side and the part located on the back side along the longitudinal direction and formed by joining together the parts located on the front side, and the part located on the back side,

wherein the gasket holder is configured to fasten the absorbent pad in such a way that the absorbent pad connects the part located on the front side and the part located on the back side, like a bridge, wherein:

fastening means for attaching an absorbent pad are provided on a part located on the front side and a part located on the back side;

the part located on the front side includes a sheet of the outer layer and forming the outer surface, and a sheet of the inner layer and located inside with respect to the sheet of the outer layer;

the part located on the front side has an upper front zone and a lower front zone, while the lower front zone is closer to the lower edge of the hole of the annular belt than the upper front zone; and

in the upper front zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper front zone extend laterally and are attached to the sheet of the inner layer.

<37> A gasket holder according to <36>, wherein the part located on the front side has a waist zone, an upper front zone and a lower front zone, arranged in this order from the side of the upper edge of the hole toward the side of the lower edge of the hole.

<38> A gasket holder according to <36> or <37>, wherein in the lower front zone, the elastic elements of the lower front zone extend laterally and are attached to the sheet of the outer layer.

<39> A pad holder according to <38>, in which the elastic elements of the lower front zone are thinner than the elastic elements of the upper front zone and the number of elastic elements of the lower front zone is greater than the number of elastic elements of the upper front zone.

<40> Gasket holder according to any one of paragraphs <36> - <39>, in which:

the part located on the rear side includes a sheet of the outer layer and forming the outer surface, and a sheet of the inner layer and located inside with respect to the sheet of the outer layer;

the part located on the rear side has an upper rear zone and a lower rear zone, while the lower rear zone is closer to the lower edge of the hole than the upper rear zone; and

in the upper back zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper back zone extend laterally and are attached to the sheet of the inner layer.

<41> The gasket holder according to paragraph <40>, in which the part located on the rear side has a waist zone, an upper back zone and a lower back zone, arranged in this order from the upper edge part towards the lower edge part.

<42> A gasket holder according to <40> or <41>, wherein the gasket holder is worn in such a way that the upper anterior region or the upper posterior region contacts the area extending from the iliac crest of the carrier to the anterior superior iliac spine.

<43> A gasket holder according to any one of <40> to <42>, wherein the elastic elements of the upper front zone and the elastic elements of the upper rear zone are located between the sheet of the inner layer and the additional sheet.

<44> A gasket holder according to any one of paragraphs <39> - <43>, in which:

in the lower back zone, the elastic elements of the lower back zone extend laterally and are attached to the sheet of the outer layer; and

the elastic elements of the lower back zone are thinner than the elastic elements of the upper back zone, and the number of elastic elements of the lower back zone is greater than the number of elastic elements of the upper back zone.

<45> A pad holder according to any one of <36> to <44>, wherein the attachment means for attaching the outer surface of the back sheet of the absorbent pad is provided on a surface of the additional sheet in contact with the skin, which forms the surface of the pad holder in contact with the skin.

<46> A gasket holder according to any one of <36> to <44>, wherein the attachment means for attaching an inner surface of an upper sheet of an absorbent pad is provided on an outer surface of a sheet of an outer layer that forms the outermost surface of the gasket holder.

<47> A gasket holder according to <45> or <46>, wherein the fastening means is positioned so that it extends laterally at a place near the lower edge portion located on the front side and the lower edge portion located on the back side.

<48> A gasket holder according to any one of <45> to <47>, wherein the fastening means is a double-sided adhesive tape or element with hooks or an element with hook and loop fasteners.

<49> A gasket holder according to any one of paragraphs <36> - <48>, in which:

 the length determined in the longitudinal direction of the part located on the front side is larger than the length determined in the longitudinal direction of the part located on the back side in a certain portion of the part located on the front side; or

the length determined in the longitudinal direction of the part located on the rear side is larger than the length determined in the longitudinal direction of the part located on the front side in a certain portion of the part located on the back side.

<50> A gasket holder according to any one of <36> - <49>, wherein in the upper front zone, when it is stretched, the percentage of the unconnected zone, in which the outer layer sheet and the inner layer sheet are not connected, to the entire area of the zone , in which the sheet of the inner layer, is between the parts representing the side seams, is 85% or more, and more preferably 90% or more.

<51> A gasket holder according to any one of <36> - <50>, wherein in the upper front zone when it is stretched, the length of the unconnected zone, determined in the longitudinal direction, in which the sheet of the outer layer and the sheet of the inner layer are not connected, is 3% or more and more preferably 6% or more with respect to the entire longitudinally defined length of the gasket holder.

<52> A gasket holder according to any one of <36> - <51>, in which in the upper front zone, when it is stretched, the length of the unconnected zone, determined in the longitudinal direction, in which the sheet of the outer layer and the sheet of the inner layer are not connected, is 40% or less and more preferably 35% or less with respect to the entire longitudinally determined length of the gasket holder.

<53> A pad holder according to any one of <36> to <52>, wherein the upper front zone is 5% or more and more preferably 10% or more relative to the distance from the end of the waist hole to the end of the leg hole.

<54> A gasket holder according to any one of <36> - <53>, wherein the upper front region is 70% or less and more preferably 50% or less relative to the distance from the end of the waist hole to the end of the leg hole.

In the stretchable absorbent article of the present invention, the front outer closure member and the rear outer closure member are separated by the crotch portion, and thus, the pulling / deformation of the outer closure member due to posture of the wearer is effectively prevented. As a result, the sheet of the outer covering element of the outer layer can easily rise upward from the sheet of the inner layer in the upper front region, and thus the absorbent article has excellent breathability and moisture permeability when worn. In addition, the curl of the outer layer sheet is prevented when the product is worn, and thus the product has an excellent appearance.

The gasket holder of the present invention has a simple and clearly styled appearance that makes it look like an underwear item. Since the gasket holder and the absorbent pad are separate, even if the absorbent pad is deformed due to the posture of the wearer when the product is worn, the product is less prone to propagate deformation to the part located on the front side and / or the part located on the back side, and thus effectively Prevents tension / deformation of the part located on the front side and / or the part located on the back side. As a result, the sheet of the outer covering element of the outer layer can easily rise upward from the sheet of the inner layer in the upper front zone, and thus, the product has excellent breathability and moisture permeability when worn. In addition, the curl of the outer layer sheet is prevented when the product is worn, and thus the product has an excellent appearance.

Claims (31)

1. A pull-on absorbent article comprising a front outer closure member positioned on the abdomen side of the wearer, a rear outer closure member positioned on the back side of the wearer, and an absorbent assembly attached to the front outer closure member and the rear outer closure member so as to connect them like the bridge, while the stretched absorbent product has side seams located on the respective lateral edge parts of the front outer covering element and the rear an outer closure element along a longitudinal direction and formed by joining together the front outer closure element and the rear outer closure element, the stretch absorbent article thus comprises an annular outer closure portion that includes a front outer closure element and a rear outer closure element that are joined together , wherein:
the front outer cover member includes an outer layer sheet forming an outer surface and an inner layer sheet located inside with respect to the outer layer sheet;
the front outer closure member has an upper front zone and a lower front zone, wherein the lower front zone is closer to the crotch than the upper front zone;
in the upper front zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, while the elastic elements of the upper front zone extend laterally and are attached to the sheet of the inner layer;
in the lower front zone, the elastic elements of the lower front zone extend laterally and are attached to the sheet of the outer layer or to the sheet of the inner layer; wherein
the front outer covering element has a waist zone that is adjacent to the upper front zone and which is located closer to the edge of the waist hole in the annular outer covering part than the upper front zone, while in the waist zone, the elastic elements of the waist zone extend laterally and are attached to sheet of the outer layer. 2. The stretchable absorbent article according to claim 1, wherein in any one of the rear outer closure element and the front outer closure element or as in each of these elements, the sheet of the outer layer has an elongated portion relative to the longitudinal direction, which extends longitudinally outward from the longitudinal edges of the sheet of the inner layer. 3. The stretch absorbent article of claim 2, wherein the elongated portion of the sheet of the outer layer is bent backward toward the inner surface at the edge of the opening of the waist zone. 4. The stretch absorbent product according to claim 2, in which the elastic elements of the waist zone are fixed between the bent elongated part of the sheet of the outer layer. 5. The stretch absorbent article according to claim 1, which contains a rectangular additional sheet that covers the longitudinal edge of the absorbent set; wherein
one longitudinal edge of the additional sheet is located in the same place as the longitudinal edge of the sheet of the inner layer. 6. The stretch absorbent article of claim 1, wherein:
the rear outer cover member includes a sheet of the outer layer forming the outer surface and a sheet of the inner layer located inside with respect to the sheet of the outer layer;
the rear outer closure member has an upper back zone and a lower back zone, wherein the lower back zone is closer to the crotch than the upper back zone; and
in the upper back zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper back zone extend laterally and are attached to the sheet of the inner layer. 7. The stretch absorbent article of claim 6, wherein in the lower back zone, the elastic elements of the lower back zone extend laterally and are attached to the sheet of the outer layer or to the sheet of the inner layer. 8. The stretchable absorbent article of claim 6, wherein the stretchable absorbent article is worn in such a way that the upper anterior region or the upper posterior region contacts the region extending from the iliac crest of the carrier to the anterior superior iliac spine. 9. The stretch absorbent product according to claim 1, wherein the longitudinal length of the front outer closure element is greater than the longitudinal length of the rear outer closure element in the portion of the front outer closure element, or
the longitudinal length of the rear outer closure member is greater than the longitudinal length of the front outer closure element in the portion of the rear outer closure element. 10. The stretch absorbent article of claim 1, wherein the absorbent assembly is attached from its inner surface to the outer surface of the front outer closure member and the rear outer closure member. 11. The stretch absorbent article of claim 10, wherein the sheet of the outer layer of the front outer cover element and the sheet of the outer layer of the rear outer cover element are located opposite the top sheet of the absorbent set; however, in this state, the connecting sheet is arranged so that the connecting sheet overlaps each longitudinal edge of the absorbent assembly. 12. Tensile absorbent product according to claim 1, in which:
the absorbent assembly is attached from its inner surface to the outer surface of the front outer closure element and the rear outer closure element;
the sheet of the outer layer of the front outer covering element and the sheet of the outer layer of the rear outer closing element are located opposite the top sheet of the absorbent set; and in this state, the connecting sheet is arranged so that the connecting sheet overlaps each longitudinal edge of the absorbent assembly;
at a location near the longitudinal lower edge of the connecting sheet, the connecting sheet and the back sheet of the absorbent assembly are joined together by adhesive; and
at a location near the longitudinal upper edge of the connecting sheet, the connecting sheet and the outer layer sheet are joined together by adhesive. 13. The stretch absorbent article of claim 12, wherein the junction of the connecting sheet and the outer layer sheet is in the lower front region of the front outer closure element and in the lower rear region of the rear outer closure element. 14. The stretchable absorbent article of claim 10, wherein pockets are formed, each pocket being limited to a sheet of the outer layer of the front outer closure member and the top sheet of the absorbent kit, and a sheet of the outer layer of the back outer closure element and the top sheet of the absorbent set. 15. The stretchable absorbent article of claim 14, wherein the pocket has a double-sided adhesive tape or Velcro fastener. 16. The stretch absorbent article of claim 1, wherein the absorbent assembly is attached from its outer surface to the inner surface of the front outer closure member and the rear outer closure member. 17. The stretch absorbent article of claim 1, wherein the elastic elements of the lower front zone are thinner than the elastic elements of the upper front zone and the number of elastic elements of the lower front zone exceeds the number of elastic elements of the upper front zone. 18. The stretch absorbent article of claim 7, wherein the elastic elements of the lower back zone are thinner than the elastic elements of the upper back zone and the number of elastic elements of the lower back zone exceeds the number of elastic elements of the upper back zone. 19. A gasket holder containing an annular belt, which includes a part located on the front side and placed on the side of the abdomen of the carrier, and a part located on the back side and placed on the side of the back of the carrier, while the ring-shaped belt has side seams located on corresponding lateral edge portions of the part located on the front side and the part located on the back side, and formed by joining together the part located on the front side and the part located on back side
wherein the gasket holder is configured to fasten the absorbent pad in such a way that the absorbent pad connects the part located on the front side and the part located on the back side, like a bridge, wherein:
fastening means for attaching an absorbent pad are provided on a part located on the front side and a part located on the back side;
the part located on the front side includes a sheet of the outer layer forming the outer surface, and a sheet of the inner layer located inside with respect to the sheet of the outer layer;
the part located on the front side has an upper front zone and a lower front zone, while the lower front zone is closer to the lower edge of the hole of the annular belt than the upper front zone;
in the upper front zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper front zone extend laterally and are attached to the sheet of the inner layer;
in the lower front zone, the elastic elements of the lower front zone extend laterally and are attached to the sheet of the outer layer or to the sheet of the inner layer; and
the part located on the front side has a waist zone that is adjacent to the upper front zone and is located closer to the edge of the waist hole than the upper front zone, and in the waist zone, elastic elements of the waist zone extend laterally and are attached to the sheet of the outer layer. 20. The gasket holder according to claim 19, wherein in any one of the part located on the front side and the part located on the back side, or in both of these parts, the sheet of the outer layer has an elongated portion relative to the longitudinal direction, which extends in the longitudinal outward from the longitudinal direction of the edge of the sheet of the inner layer. 21. The gasket holder according to claim 20, in which the elongated portion of the sheet of the outer layer is bent toward the inner surface at the edge of the waist opening. 22. The gasket holder according to claim 20, in which the elastic elements of the waist zone are fixed between the sides of the bent elongated portion of the sheet of the outer layer. 23. The gasket holder according to claim 19, in which:
the part located on the rear side includes a sheet of the outer layer and forming the outer surface, and a sheet of the inner layer and located inside with respect to the sheet of the outer layer;
the part located on the rear side has an upper rear zone and a lower rear zone, while the lower rear zone is closer to the lower edge of the hole than the upper rear zone; and
in the upper back zone, the sheet of the outer layer and the sheet of the inner layer are in an unconnected state, and the elastic elements of the upper back zone extend laterally and are attached to the sheet of the inner layer. 24. The gasket holder according to claim 19, wherein the longitudinal length of the part located on the front side is larger than the longitudinal length of the part located on the back side in a portion of the part located on the front side, or
the length determined in the longitudinal direction of the part located on the rear side is larger than the length determined in the longitudinal direction of the part located on the front side in the portion of the part located on the back side. 25. The gasket holder according to claim 24, wherein the gasket holder is worn in such a way that the upper anterior zone or the upper posterior region contacts the zone extending from the iliac crest of the carrier to the anterior superior iliac spine. 26. The pad holder according to claim 19, wherein the attachment means for attaching the outer surface of the back sheet of the absorbent pad is provided on the surface of the additional sheet in contact with the skin, which forms the surface of the pad holder in contact with the skin. 27. The gasket holder according to claim 19, wherein the fastening means for attaching the inner surface of the upper sheet of the absorbent gasket is provided on the outer surface of the sheet of the outer layer, which forms the outermost surface of the gasket holder. 28. The gasket holder according to claim 19, in which:
fastening means for attaching the outer surface of the back sheet of the absorbent pad is provided on the surface of the additional sheet in contact with the skin, which forms the surface of the pad holder in contact with the skin; or
fastening means for attaching the inner surface of the upper sheet of the absorbent pad is provided on the outer surface of the sheet of the outer layer, which forms the outermost surface of the pad holder; and
the attachment means is arranged so that the attachment means extends laterally at a location located near the lower edge of the portion located on the rear side. 29. The gasket holder according to claim 19, wherein in the lower front zone, filamentary or ribbon-like elastic elements of the lower front zone are located between the sheet of the outer layer and the sheet of the inner layer, in places that are laterally outside from the side edges of the absorbent assembly. 30. The gasket holder of claim 19, wherein the elastic elements of the lower front zone are thinner than the elastic elements of the upper front zone and the number of elastic elements of the lower front zone is greater than the number of elastic elements of the upper front zone. 31. The gasket holder according to claim 23, in which:
in the lower back zone, the elastic elements of the lower back zone extend laterally and are attached to the sheet of the outer layer or to the sheet of the inner layer; and
the elastic elements of the lower back zone are thinner than the elastic elements of the upper back zone, and the number of elastic elements of the lower back zone is greater than the number of elastic elements of the upper back zone.

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