WO2012171261A1 - Paper diaper having new type of absorption layer and processing method therefor - Google Patents

Abstract

A paper diaper having a new type of absorption layer and processing method therefor. The paper diaper comprises a surface layer (1), an absorption layer, a bottom layer (5), and waist stickers. The absorption layer is between the surface layer (5) and the bottom layer (5). The absorption layer has multiple sewing threads (7) interpenetrating therein for dividing the absorption layer into and fastening multiple web structures. The sewing threads can penetrate the surface layer (1), and separately connect the surface layer (1) and the bottom layer (5), thereby forming an integral body. The absorption layer can comprise a fluff pulp layer (3), a dispersion layer (2) thereabove, and an absorbent paper layer (4) therebelow. The sewing threads (7) can penetrate the fluff pulp layer (3), and separately connect the dispersion layer (2), and the absorbent paper layer (4). The fluff pulp layer (3) can be provided with multiple fiber coagulation points. The paper diaper is simple in structure, economic, practical, safe, sanitary, and comfortable. The absorption layer is not easy to deform and fracture. The processing method has a simple production process and high production efficiency.

Description

 Paper diaper with novel absorbent layer and processing method thereof

 The present invention relates to a diaper, and in particular to a diaper having a novel absorbent layer and a method of processing the same. Background art

 At present, commercially available diapers are usually made up of a mixture of fluff pulp and a polymeric water absorbing layer to form an absorbent layer, which is then laminated by a top layer and a bottom layer, and a matching waist patch. After the user uses the diaper, the water absorbing layer is swollen by a large amount of water absorbing layer, and the water absorbing layer is swollen to form a water absorbing mass. The absorbing mass is pulled by the water absorbing mass, and the user twists during the movement to make the water absorbing group Due to the uneven force and the different squeezing and pulling forces, the other faculties have the phenomenon that the diaper absorption layer is rolled, agglomerated, broken, delaminated, broken or the liquid is not uniformly transported. In the absence of the first time replacement, various discomforts may occur, and even the phenomenon that the polymer water absorbing layer expands and is squeezed and overflows, which seriously affects the user's health. Summary of the invention

 In order to overcome the above-mentioned deficiencies of the prior art, embodiments of the present invention provide a diaper having a novel absorbent layer and a processing method thereof, which separate the absorbing layer into a plurality of mesh structures and are fixed so that the fluff pulp in the absorbing layer And the polymer water absorbing layer is not easily deformed and broken. The technical solution is as follows:

 A diaper having a novel absorbing layer, comprising a top layer, an absorbing layer, a bottom layer and a waist patch, the absorbing layer being disposed between the top layer and the bottom layer, wherein the waist patch is disposed on both sides of the top layer, the absorbing A plurality of sewing threads are interposed in the layer, and the sewing threads are used to divide the absorbing layer into a plurality of mesh structures and fix them.

 Specifically, the sewing thread passes through the face layer, the absorbent layer, the bottom layer, and connects the face layer and the bottom layer, respectively, to form an integral body.

 Specifically, the absorbing layer is composed of a fluff pulp layer and a dredging layer thereabove and a lower absorbent paper layer, and the sewing thread passes through the fluff pulp layer and connects the upper dredging layer and the lower absorbent paper layer, respectively.

 Specifically, the absorbing layer is composed of a fluff pulp layer and a dredging layer thereabove and a lower absorbent paper layer, and the sewing thread passes only through the fluff pulp layer, and the fluff pulp layer is divided into a plurality of mesh structures and fixed.

 Specifically, a single segment of the sewing thread exists.

Specifically, the sewing threads are connected to each other. The embodiment of the invention further provides a diaper having a novel absorbent layer, which is composed of a top layer, an absorbing layer, a bottom layer and a waist patch, the absorbing layer is disposed between the surface layer and the bottom layer, and the waist layer is disposed on the surface layer On the upper two sides, the absorbing layer is composed of a fluff pulp layer and a dredging layer above it and a lower absorbent paper layer, wherein a plurality of fiber freezing points are arranged in the fluff pulp layer, and the fiber freezing point is used for the fluff of the absorbing layer The pulp layer is divided into a plurality of mesh structures and fixed.

 The embodiment of the invention provides a processing technology for a diaper having a novel absorbing layer, which is a step of dividing the absorbing layer into a plurality of reticular structures and fixing them during the processing of the absorbing layer in the processing process of the existing diaper. The steps specifically include:

 Step 1. The velvet sewing process is used to add the fluff pulp layer of the absorbing layer to the sewing thread, wherein the sewing thread only penetrates the fluff pulp layer and is equidistantly arranged;

 Step 2. A dredging layer is arranged on the upper part of the fluff pulp layer, and an absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorbent layer.

 The embodiment of the invention further provides a processing method for a diaper having a novel absorbing layer, which is a step of dividing the absorbing layer into a plurality of reticular structures and fixing during the processing of the absorbing layer in the processing process of the existing diaper. , the steps specifically include:

 Step 1. A dredging layer is arranged on the upper part of the fluff pulp layer, and a water absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorption layer;

 Step 2: Using a quilting sewing process, the fluff pulp layer of the absorbing layer is added into the sewing thread, wherein the sewing thread penetrates the fluff pulp layer and extends in the upward and downward directions, respectively, upwardly passing through the dredging layer disposed above the fluff pulp layer. And the top layer, down through the absorbent paper layer and the bottom layer below the fluff pulp layer, and the sewing threads are equidistantly arranged.

 The step may further be: using ultrasonic waves to melt the fibers in the fluff pulp layer of the absorbing layer and then solidifying, thereby forming a plurality of fiber freezing points, thereby separating the fluff pulp layer of the absorbing layer into a plurality of reticular structures and fixing.

 The beneficial effects of the technical solutions provided by the embodiments of the present invention are:

 A diaper having a novel absorbent layer according to an embodiment of the present invention, which uses a sewing thread or an ultrasonic process to fix the absorbing layer of the diaper, and at the same time makes the liquid conduction more uniform, which advantageously accelerates the distribution of the liquid and effectively avoids Due to the expansion of water absorption, the fluff pulp is pulled, and the user is distorted during the movement, so that the water absorbing group and other parts are caused by the uneven force and the difference in the squeezing and pulling force, which is caused by the winding, agglomeration, breakage, Defects such as delamination, breakage, or uneven liquid transport, relieve the user of the troubles caused by such problems.

 The method for processing a diaper having a novel absorbent layer according to an embodiment of the present invention is to complete the production of the diaper on the production line according to the method of the ordinary diaper, and the absorbing layer of the diaper is obtained by a sewing process such as quilting on the diaper production line. a diaper which is integrally formed into a mesh structure from the top layer to the bottom layer to form an integral absorbent layer;

It is also possible to separately manufacture the fluff pulp layer of the absorbent layer, and to make the fluff of the absorbent layer by a sewing process such as quilting. The pulp layer is sewn into a mesh structure, and then the transport layer and the absorbent paper layer are adhered to form a diaper which is processed by the surface layer and the bottom layer to form an integral absorbent layer;

 It is also possible to form a plurality of fiber freezing points in the absorption layer by ultrasonic waves for the fibers in the absorption layer, and to separate the absorption layer into a plurality of network structures and fix them by means of the fiber freezing point.

 In summary, compared with the prior art, the diaper of the embodiment of the present invention has a novel absorbent layer, and has the advantages of simple structure, economical and practical, safety, sanitation, and comfortable use. The processing method according to the embodiment of the present invention has production. The process is simple and the production efficiency is high. DRAWINGS

 In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

 1 is a schematic cross-sectional structural view of a diaper having a novel absorbent layer according to Embodiment 1 of the present invention;

 Figure 2 is a schematic cross-sectional view showing a diaper having a novel absorbent layer according to Embodiment 2 of the present invention;

 3 is a schematic view showing the structure of the sewing thread surface of the absorbent layer of the diaper having the novel absorbent layer according to Embodiment 1 of the present invention; FIG. 4 is a schematic view showing the structure of the sewing thread surface of the absorbent layer of the diaper having the novel absorbent layer according to Embodiment 3 of the present invention; Fig. 5 is a schematic view showing the structure of the sewing thread surface of the absorbent layer of a diaper having a novel absorbent layer according to Embodiment 4 of the present invention.

 In the picture:

 1-surface layer;

 2-transmission layer;

 3-fluff pulp layer;

 4-absorbent paper layer;

 5-bottom;

 6-polymer absorbent resin;

 7-Sewing thread. detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Example 1:

 Referring to Fig. 1, a diaper having a novel absorbent layer is composed of a top layer 1, an absorbent layer, a bottom layer 5 and a waist patch. The absorbent layer is disposed between the top layer 1 and the bottom layer 5, and the waist patch is disposed on the surface. On both sides of the upper layer 1, a plurality of sewing threads are interspersed in the absorbing layer, and the sewing thread is used for dividing the absorbing layer into a plurality of mesh structures and fixing them. Example 2:

 Referring to Fig. 2, a diaper having a novel absorbent layer is composed of a top layer 1, an absorbent layer, a bottom layer 5 and a waist patch. The absorbent layer is disposed between the top layer 1 and the bottom layer 5, and the waist patch is disposed on the surface. On the upper sides of the layer 1, a plurality of sewing threads are interspersed in the absorbing layer, and are respectively connected to the upper layer of the upper layer of the absorbing layer and the bottom layer of the bottom portion for separating the absorbing layer into a plurality of reticular structures and the absorbing layer and The top layer 1 and the bottom layer 5 are fixed. Example 3:

 As shown in FIG. 1 and FIG. 3, a diaper having a novel absorbent layer is composed of a top layer 1, an absorbent layer, a bottom layer 5 and a waist patch, and the absorbent layer is composed of a fluff pulp layer 3, a transport layer 2, and The absorbent paper layer 4 is composed of a polymer absorbent resin 6 disposed on the fluff pulp layer 3, and the transport layer 2 and the absorbent paper layer 4 are disposed on both sides of the fluff pulp layer 3, and the absorbent layer is disposed between the top layer 1 and the bottom layer 5, The waist patch is disposed on both sides of the top layer 1, and a plurality of sewing threads 7 are interposed in the absorbing layer, and the sewing thread 7 is used for dividing the absorbing layer into a plurality of mesh structures and fixing them.

 In this embodiment, as shown in Fig. 1, the sewing thread 7 can penetrate only the pile layer 3 of the absorbent layer.

 In the present embodiment, the sewing thread 7 can fix the pile layer 3 of the absorbent layer through the sewing thread 7 so as not to be deformed when pressed by an external force. Example 4:

 As shown in FIG. 2, a diaper having a novel absorbent layer is composed of a top layer 1, an absorbent layer, a bottom layer 5 and a waist patch, and the absorbent layer is composed of a fluff pulp layer 3, a transport layer 2 and an absorbent paper layer 4. The polymer layer 6 is disposed in the fluff pulp layer 3, and the transport layer 2 and the absorbent paper layer 4 are respectively disposed on both sides of the fluff pulp layer 3. The absorbent layer is disposed between the top layer 1 and the bottom layer 5, and the waist patch is disposed. On the upper side of the top layer 1, a plurality of sewing threads 7 are interposed in the absorbing layer, and the sewing thread 7 is used for dividing the absorbing layer into a plurality of mesh structures and fixing them.

 The sewing thread 7 sequentially penetrates the top layer 1, the transport layer 2 at the upper portion of the absorbing layer, the fluff pulp layer 3 of the absorbing layer, the absorbent paper layer 4 and the bottom layer 5 at the lower portion of the absorbing layer, thereby bringing the top layer 1, the absorbing layer and the bottom layer 5 Fixed together.

In the present embodiment, the sewing thread 7 can fix the top layer 1, the absorbent layer and the bottom layer 5 as a whole by the sewing thread 7, so that it does not deform when pressed by an external force. A diaper having a novel absorbent layer, comprising a topsheet 1, an absorbent layer, a bottom layer 5 and a waist patch, the absorbent layer being composed of a fluff pulp layer 3, a transport layer 2 and a water absorbent paper layer 4, and a fluff pulp layer 3 The polymer absorbing resin 6 is disposed, and the transport layer 2 and the absorbent paper layer 4 are respectively disposed on both sides of the fluff pulp layer 3, and the absorbing layer is disposed between the top layer 1 and the bottom layer 5, and the waist patch is disposed on both sides of the top layer 1 A plurality of sewing threads 7 are interspersed in the absorbing layer, and the sewing threads 7 are used to divide the absorbing layer into a plurality of mesh structures and fix them.

 In this embodiment, as shown in Fig. 1, the sewing thread 7 can penetrate only the pile layer 3 of the absorbent layer.

 In the present embodiment, the sewing thread 7 can fix the pile layer 3 of the absorbent layer through the sewing thread 7 so as not to be deformed when pressed by an external force.

 The present embodiment is different from the embodiment 1 in that, as shown in Fig. 4, after the sewing thread 7 penetrates the pile layer 3, the sewing threads 7 of the same row are connected to each other.

 In the present embodiment, the sewing threads 7 of the same row are connected to each other, and the fixing effect of the sewing thread 7 can be enhanced. Example 6:

 A diaper having a novel absorbent layer, comprising a topsheet 1, an absorbent layer, a bottom layer 5 and a waist patch, the absorbent layer being composed of a fluff pulp layer 3, a transport layer 2 and a water absorbent paper layer 4, and a fluff pulp layer 3 The polymer absorbing resin 6 is disposed, and the transport layer 2 and the absorbent paper layer 4 are respectively disposed on both sides of the fluff pulp layer 3, and the absorbing layer is disposed between the top layer 1 and the bottom layer 5, and the waist patch is disposed on both sides of the top layer 1 A plurality of sewing threads 7 are interspersed in the absorbing layer, and the sewing threads 7 are used to divide the absorbing layer into a plurality of mesh structures and fix them.

 In this embodiment, as shown in Fig. 1, the sewing thread 7 can penetrate only the pile layer 3 of the absorbent layer.

 In the present embodiment, the sewing thread 7 can fix the pile layer 3 of the absorbent layer through the sewing thread 7 so as not to be deformed when pressed by an external force.

 This embodiment differs from the first embodiment in that, as shown in Fig. 5, after the sewing thread 7 penetrates the fluff pulp layer 3, the adjacent two sewing threads 7 are connected to each other, so that the sewing thread 7 is netted. The lattice shape enhances the fixing effect of the sewing thread 7. Example 7

 A processing technique for a diaper having a novel absorbent layer is a step of dividing a pile layer 3 of the absorbent layer into a plurality of network structures and fixing them during the processing of the absorbent layer in the processing of the existing diaper.

 The specific steps include: See Figure 1.

Step 1. The velvet sewing process is used to add the fluff pulp layer 3 of the absorbing layer to the sewing thread 7, wherein the sewing thread 7 can penetrate only the fluff pulp layer 3 and are equidistantly arranged; Step 2. A dredging layer 2 is disposed on the upper portion of the fluff pulp layer 3, and a water absorbent paper layer is disposed on the lower portion of the fluff pulp layer 3 to constitute a complete absorbent layer.

 In the present embodiment, the sewing thread 7 is a plurality of single wires passing through the pile layer 3, respectively, thereby separating the pile layer of the absorbent layer into a plurality of mesh structures and fixing them. Example 8

 A processing method for a diaper having a novel absorbent layer is a step of dividing the absorbing layer into a plurality of reticular structures and fixing them during the processing of the absorbing layer in the processing of the existing diaper.

 The specific steps include: See Figure 2,

 Step 1. A dredging layer 2 is disposed on the upper portion of the fluff pulp layer 3, and a water absorbent paper layer is disposed on the lower portion of the fluff pulp layer 3 to constitute a complete absorbent layer.

 Step 2: The velvet sewing process is used to add the fluff pulp layer 3 of the absorbing layer to the sewing thread 7, wherein the sewing thread 7 penetrates the fluff pulp layer 3 and extends in the upward and downward directions, respectively, upwardly through the fluff pulp layer 3 The dredging layer 2 and the top layer 1 disposed above pass down through the absorbent paper layer 4 and the bottom layer 5 below the pile layer 3, and the sewing threads 7 are equidistantly arranged.

 In this embodiment, the sewing thread 7 is a single single-line loop through the top layer 1, the dredging layer 2, the fluff pulp layer 3, the absorbent paper layer 4 and the bottom layer 5, thereby separating the fluff pulp layer of the absorbent layer into a plurality of nets. Structure and fixed. Example 9

 A processing technique for a diaper having a novel absorbent layer is a step of dividing the absorbent layer into a plurality of mesh structures and fixing them during the processing of the absorbent layer in the processing of the existing diaper.

 In this embodiment, the step of dividing the absorption layer into a plurality of network structures and fixing is specifically: ultrasonically melting the fibers of the pile layer 3 in the absorption layer and solidifying, thereby forming a plurality of fiber freezing points, thereby absorbing the absorption layer. The fluff pulp layer 3 is divided into a plurality of mesh structures and fixed. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim  A diaper having a novel absorbent layer, comprising a top layer, an absorbent layer, a bottom layer and a waist patch, the absorbent layer being disposed between the top layer and the bottom layer, wherein the waist patch is disposed on both sides of the top layer, The absorbing layer is interspersed with a plurality of sewing threads for dividing the absorbing layer into a plurality of mesh structures and fixing them. 2. A diaper having a novel absorbent layer according to claim 1, wherein the sewing thread passes through the facing layer, the absorbent layer, the bottom layer, and connects the facing layer and the bottom layer, respectively, to form a unitary body. 3. A diaper having a novel absorbent layer according to claim 1, wherein the absorbing layer is composed of a fluff pulp layer and a dredging layer thereon and a lower absorbent paper layer, and the sewing thread passes through the fluff pulp. Layers, and connect the upper guiding layer and the lower absorbent paper layer respectively. 4. A diaper having a novel absorbent layer according to claim 1, wherein the absorbing layer is composed of a fluff pulp layer and a dredging layer thereon and a lower absorbent paper layer, and the sewing thread only passes through the fluff. The pulp layer separates the fluff pulp layer into a plurality of mesh structures and is fixed. A diaper having a novel absorbent layer according to any one of claims 1 to 4, wherein said sewing thread is present in a single section. A diaper having a novel absorbent layer according to any one of claims 1 to 4, wherein the sewing threads are connected to each other. 7. A diaper having a novel absorbent layer, comprising a top layer, an absorbent layer, a bottom layer and a waist patch, the absorbent layer being disposed between the top layer and the bottom layer, wherein the waist patch is disposed on both sides of the top layer, The absorbing layer is composed of a fluff pulp layer and a dredging layer above it and a lower absorbent paper layer, wherein a plurality of fiber freezing points are arranged in the fluff pulp layer, and the fiber freezing point is used for the fluff pulp of the absorbing layer The layers are separated into a plurality of mesh structures and fixed. 8. A processing technique for a diaper having a novel absorbent layer, characterized in that in the processing of the absorbing layer in the processing of the existing diaper, a step of dividing the absorbing layer into a plurality of reticular structures and fixing them is added, The steps specifically include: Step 1. Using a quilting sewing process, the fluff pulp layer of the absorbing layer is added to the sewing thread, wherein the sewing thread only penetrates the fluff pulp layer and is equidistantly arranged;  Step 2. A dredging layer is arranged on the upper part of the fluff pulp layer, and an absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorbent layer. 9. A processing method for a diaper having a novel absorbent layer, characterized in that in the processing of the absorbing layer in the processing of the existing diaper, a step of dividing the absorbing layer into a plurality of reticular structures and fixing is added. The steps are specifically as follows: Step 1. A dredging layer is arranged on the upper part of the fluff pulp layer, and a water absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorption layer;  Step 2: Using a quilting sewing process, the fluff pulp layer of the absorbing layer is added into the sewing thread, wherein the sewing thread penetrates the fluff pulp layer and extends in the upward and downward directions, respectively, and passes upward through the dredging layer disposed above the fluff pulp layer. And the top layer, down through the absorbent paper layer and the bottom layer below the fluff pulp layer, and the sewing threads are equidistantly arranged. 10. A process for processing a diaper having a novel absorbent layer according to claim 8 or 9, wherein said sewing thread is present in a single section. A process for processing a diaper having a novel absorbent layer according to claim 8 or 9, wherein said sewing threads are connected to each other. 12. The processing of a diaper having a novel absorbent layer according to claim 8, wherein the step of: specifically: melting the fibers in the pile layer of the absorbent layer by ultrasonic waves and then solidifying, thereby A plurality of fiber freezing points are formed, thereby separating the pile layer of the absorbent layer into a plurality of network structures and fixing.