JP3934943B2 - Disposable excrement disposal articles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is related to disposable excretion treating articles.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 2001-170095 includes a front waistline region and a back waistline region in the vertical direction, and a crotch region located between the waist region, a breathable inner sheet, a water-impermeable outer sheet, A diaper cover formed from a mat-like core interposed between the sheets is disclosed. The core is formed of a knitted fabric woven or knitted from thermoplastic synthetic resin fibers. In this diaper cover, a core does not exist in the central part of the crotch region, and a concave part that is recessed in the thickness direction of the diaper cover is formed in the central part of the crotch region. A diaper cover is worn with a diaper in the recess.
[0003]
[Problems to be solved by the invention]
In the diaper cover disclosed in the above publication, even when a diaper is worn in the recess when worn, if a large amount of urine or stool is excreted, the diaper cannot fully absorb the excrement, and the excrement is removed from the diaper. It may leak on the cover. In this diaper cover, the core that forms the diaper cover does not absorb and retain the excrement, so the excrement leaking from the diaper remains on the diaper cover, and the excrement adheres to the wearer's skin from the diaper cover. In some cases, the wearer's skin may be stained extensively.
[0004]
The subject of this invention is providing the disposable excretion processing article which can absorb and hold | maintain excrement and it does not adhere to a wearer's skin, even if a large amount of excretion is excreted. .
[0005]
[Means for Solving the Problems]
The present invention for solving the above problems, longitudinally front and rear waist regions and to position the crotch region therebetween, consists inner sheet to stick to the surface sheet and its inner surface facing the skin contact side Including a surface layer sheet in which an opening for passing excrement is formed at a required portion, a liquid-impervious back sheet, and a liquid-absorbing panel interposed between the surface layer sheet and the back sheet to absorb and expand liquid The object is to improve the excrement disposal article.
[0006]
A feature of the present invention according to an improvement is that the opening is formed of a urine opening and a defecation opening that are spaced apart from each other in the longitudinal direction, and the liquid-absorbing panel includes a position directly below the urination opening, and , Existing between the surface sheet and the back sheet in a region not including directly under the defecation opening, and fixed to the inner surface of the surface sheet, the back sheet being in the transverse direction intersecting the longitudinal direction It has a pleat extended to at least one of the above-mentioned excretion processing articles.
[0007]
The present invention includes the following preferred embodiments.
[0008]
The back sheet has a second pleat that intersects the pleat.
[0009]
The leakproof sheet further includes a pair of liquid-impervious leakproof sheets extending in the longitudinal direction from the crotch area toward the front and rear waist area on both sides of the urination and defecation opening on the surface of the surface sheet, A fixed side portion fixed to the surface of the surface layer sheet, a free side portion having an upward propensity toward the upper side of the article, and fixed both end portions fixed to the surface of the surface layer sheet in the front and rear waist area. And the elastic member extended in the said vertical direction is attached to the said free side part under expansion | extension.
[0010]
[0011]
[0012]
[0013]
DETAILED DESCRIPTION OF THE INVENTION
With reference to the accompanying drawings, when explain the details of the disposable excreta treating articles according to the present invention is as follows.
[0014]
1 is a partially broken perspective view of the excretion processing article 1A shown from the skin contact side , FIG. 2 is a perspective view of the excretion processing article 1A of FIG. 1 shown from the skin non-contact side , and FIG . FIG . 4 is a cross-sectional view taken along line A-A in FIG . 4 and FIG . 4 is a cross-sectional view taken along line B-B in FIG. 1 and 2, the horizontal direction is indicated by an arrow X, the vertical direction is indicated by an arrow Y, and the thickness direction is indicated by an arrow Z. 3 and 4, the state in which the panel 16 is expanded and the state in which the back sheet 15 is extended downward in the thickness direction of the excretion processing article 1 </ b> A are indicated by two-dot chain lines.
[0015]
The excretion processing article 1A includes a surface layer sheet 24 including a liquid- permeable surface sheet 2 positioned on the skin contact side and a liquid-impermeable inner surface sheet 3 fixed to the inner surface thereof . The excrement disposal article 1A includes a front waistline region 5 and a back waistline region 7 in the vertical direction, and a crotch region 6 positioned between the waist region 5 and 7, and the front and back waist regions 5 and 7 are laterally disposed. the waist end 8 extending direction, the waist side 9 extending front and rear waist regions 5, 7 in the longitudinal direction, that having a the leg side 10 extending crotch region 6 in the longitudinal direction. The leg- surrounding side portion 10 is curved inward in the lateral direction. Therefore, the planar shape of the excretion processing article 1A substantially exhibits an hourglass shape as a whole . The surface sheet 24 is formed with a urine opening 11 and a defecation opening 12 which are spaced apart from each other in the longitudinal direction of the excretion processing article 1A and penetrate in the thickness direction.
[0016]
A belt-like elastic member 13 for waistline extending in the lateral direction is attached to the waistline end portion 8 in an extended state. A plurality of leg-around elastic members 14 extending along the leg periphery side portion 10 are attached in an extended state.
[0017]
The urination and defecation openings 11 and 12 have an elliptical shape that is long in the vertical direction, and are located at a position biased toward the front waistline region 5 in the crotch region 6 and a substantially central portion of the crotch region 6. In other words, the urination hole 11 is located at the urination site in the surface layer sheet 24, and the defecation aperture 12 is located at the stool site in the surface layer sheet 24 . At the periphery of the urination and defecation openings 11 and 12, the top sheet 2 and the inner sheet 3 constituting the surface sheet 24 are fixed in an overlapping state . The excretion disposal article 1A further includes a liquid-impermeable back sheet 15, and the back sheet 15 has an area covering at least an area including urination and defecation openings 11 and 12 on the inner surface of the surface layer sheet 24. The excretion processing article 1 </ b> A further includes a liquid absorbent panel 16, and the liquid absorbent panel 16 is interposed between the surface layer sheet 24 and the back sheet 15 .
[0018]
Excretion treatment article 1A further includes leak-proof sheet 4, which is located on both sides of urination and defecation openings 11 and 12 in surface sheet 24 , from crotch region 6 to front and rear waist regions 5, 7 It extends in the vertical direction. The leak-proof sheet 4 is fixed to the trunk periphery side portion 9 and the leg periphery side portion 10 and extends in the vertical direction, and the free side extending in the vertical direction with a standing orientation above the surface layer sheet 24. It has a portion 4b and fixed both end portions 4c fixed to the waistline end portion 8 with its side edges directed inward . A stretchable elastic member 17 extending in the vertical direction is attached to the side edge of the free side portion 4b in an extended state. The elastic member 17 is covered with a side edge of the free side portion 4b.
[0019]
The back sheet 15 has both end portions 15a (peripheral portions) extending in the lateral direction in the front and rear waist regions 5, 7 and both side portions 15b (peripheral portions) extending in the vertical direction from the crotch region 6 toward the front and rear waist regions 5, 7. ) possess a, and the end portions 15a and both side portions 15b are fixed to the inner surface of the surface layer sheet 24. The backsheet 15, a plurality of first pleat 18 extending in the longitudinal direction, and a plurality of second pleat 19 arranged in the longitudinal direction that are formed. The first pleat 18, as shown in FIG. 3, that is formed by folding in a Z-shape toward the back sheet 15 inward in the transverse direction. Flop Lietz 19, as shown in FIG. 4, the backsheet 15 is formed by repeating the undulating laterally.
[0020]
The liquid absorbent panel 16 has a mat shape having a given thickness, and is fixed to the inner surface of the surface layer sheet 24 . The panel 16 is a mixture of natural fibers and superabsorbent polymer particles, or a mixture of natural fibers, superabsorbent polymer particles and synthetic fibers, and is compressed to a required thickness. The panel 16 is preferably entirely encapsulated in a liquid-permeable sheet such as tissue paper or a hydrophilic fiber nonwoven fabric in order to prevent the shape of the panel 16 from dropping or the polymer particles from falling off.
[0021]
The natural fiber may be pulverized pulp, cotton, or hemp having water absorption. Polyolefin fiber, polyester fiber, and polyamide fiber can be used as the synthetic fiber. As the polymer particles, starch-based, cellulose-based, or synthetic polymer-based particles can be used. Natural fiber and synthetic fiber hold excrement in the fiber gap by capillary action. Further, the polymer particles, the water contained in the excrement for its own weight and can absorb in the range of 30 to 70 times, you swelling its volume in 30-70 fold when absorbing moisture.
[0022]
A tape fastener 20 extending inward in the lateral direction is attached to the waist portion side portion 9 of the rear waist region 7. In the tape fastener 20, an adhesive (not shown) is applied to a free end portion thereof, and the free end portion is temporarily fixed to the trunk periphery side portion 9 of the rear waist region 7 through the adhesive. . A rectangular target tape 21 to which the tape fastener 20 is detachably attached is attached to the waist side portion 9 of the front waist area 5. Target tape 21, that have been fixed to the surface sheet 24.
[0023]
In order to wear the excrement disposal article 1A, the waist circumference side portion 9 of the rear waist circumference region 7 is overlapped with the outside of the waist circumference side portion 9 of the front waist circumference region 5, and the free end of the tape fastener 20 is attached via an adhesive. The part is fixed to the target tape 21, and the front waistline region 5 and the back waistline region 7 are connected. In the excretion processing article 1A to which the front and rear waist areas 5, 7 are connected, a waist opening and a pair of leg openings are formed below the waist opening (not shown).
[0024]
The excretion treating articles 1A, with excreted urine reaches the panel 16 through the urination openings 11 thereto, excreted stool reaches the panel 16 through the bowel opening 12 thereto, their excrement liquid component-absorbing panel 16, since it is held, it is not a name that the liquid components are back from the panel 16 to the surface of the surface layer sheet 24. Since urine and stool do not remain on the surface layer sheet 24 and these excretions do not adhere to the wearer's skin, the excrement does not contaminate the wearer's skin.
[0025]
Panel 16, it absorbs the excreta, when held, it expanded to a given magnification to the horizontal and vertical directions and the thickness direction of the excreta treating articles 1A by swelling of the polymer particles. By the expansion of the panel 16, as shown in phantom in FIGS. 3 and 4, the backsheet 15, the together when stretched in the lateral direction through the pleats 18, you extended also to the longitudinal direction through the flop Lietz 19 . When the flop Lietz 18 and pleats 19 are extended, the backsheet 15 is deformed into a convex shape in the thickness direction below the excretion treating articles 1A shown by the arrow Z1, the space 22 of a given volume is formed.
[0026]
Even panel 16 is inflated, by that the back sheet 15 is extended through the pleats 18 and pleats 19, since spatial 22 is formed, never back sheet 15 inhibits inflation of the panel 16 The excrement can flow between the back sheet 15 and the panel 16, and substantially the entire area of the panel 16 can be used for the excretion absorption. Therefore, in the excretion processing article 1A, the panel 16 can promptly absorb and hold excrement. In previous urine or feces are excreted, never back sheet 15 is extended through the pleats 18 and pleats 19.
[0027]
When the excrement processing article 1A is bent so that the surface layer sheet 24 is inward when worn , the elastic member 17 contracts in the vertical direction, and the free side portion 4b of the leak-proof sheet 4 stands above the surface layer sheet 24 . As a result, the free side portion 4b of the leak-proof sheet 4 forms a barrier against the excrement, so that the excrement can be prevented from leaking from the crotch region 6.
[0028]
At the waistline end portion 8, the end portions 2 a and 3 a of the surface sheet 2 and the inner surface sheet 3 constituting the surface layer sheet 24 are fixed in an overlapping state. The fixed both end portions 4 c of the leak-proof sheet 4 are fixed to the end portions 2 a of the surface layer sheet 24 . The waist elastic member 13 is interposed between the end portions 2a and 3a of the surface sheet 2 and the inner surface sheet 3 constituting the surface layer sheet 24, and is fixed to the end portions 2a and 3a.
[0029]
In the trunk periphery side portion 9 and the leg periphery side portion 10, the side portion 3 b of the inner surface sheet 3 and the fixed side portion 4 a of the leakproof sheet 4 extend laterally outward from the side portion 2 b of the topsheet 2. In the trunk periphery side portion 9 and the leg periphery side portion 10, the side portion 2 b of the topsheet 2 is interposed between the side portion 3 b of the inner surface sheet 3 and the fixed side portion 4 a of the leakproof sheet 4. The side portions 2b, 3a, 4b of 3 and 4 are fixed in an overlapping state. The leg-around elastic member 14 is interposed between the side portion 3b of the inner surface sheet 3 and the fixed side portion 4a of the leak-proof sheet 4, and is fixed to the side portions 3a and 4a of the sheets 3 and 4.
[0030]
5 is a partially broken perspective view of the excretion processing article 1B of another embodiment shown from the skin contact side , FIG. 6 is a perspective view of the excretion processing article 1B of FIG. 5 shown from the skin non-contact side, 7 is a cross-sectional view taken along the line CC of FIG. 5 , and FIG. 8 is a cross-sectional view taken along the line DD of FIG. 5 and 6, the horizontal direction is indicated by an arrow X, the vertical direction is indicated by an arrow Y, and the thickness direction is indicated by an arrow Z. 7 and 8, the state in which the panel 16 is expanded and the state in which the back sheet 15 extends downward in the thickness direction of the excretion processing article 1 </ b > B are indicated by two-dot chain lines.
[0031]
The excretion processing article 1B is the same as the excretion processing article 1A in the basic configuration.
The differences are as follows.
[0032]
The panel 16 does not exist immediately below the defecation opening 12 of the excretion processing article 1B, and the inner surface of the back sheet 15 is seen from the defecation opening 12. A stool accommodating portion 23 corresponding to the thickness of the panel 16 is formed between the surface layer sheet 24 and the back sheet 15 immediately below the defecation opening 12. The panel 16 is fixed to the outer surface of the inner sheet 3.
[0033]
In the back sheet 15, both end parts 15 a (peripheral part) and both side parts 15 b (peripheral part) are fixed to the outer surface of the inner sheet 3. The backsheet 15, a plurality of pleats 18 extending in the transverse direction, and a plurality of pleats 19 arranged in the longitudinal direction that are formed. Flop Lietz 18, as shown in FIG. 7, that is formed by folding in a Z-shape toward the back sheet 15 in the longitudinal direction inwardly. Flop Lietz 19, as shown in FIG. 8, the backsheet 15 is formed by repeating the undulating laterally.
[0034]
In the excretion processing article 1 </ b > B, the urine excreted therein passes through the urination opening 11 and reaches the panel 16, and the urine is absorbed and held in the panel 16. Excreted stool, Ru housed in feces receiving section 23 through the bowel opening 12. Since urine is absorbed by the panel 16 and stool is accommodated in the stool accommodating part 23, urine is not returned from the panel 16 onto the surface layer sheet 24 , and stool is transferred from the stool accommodating part 23 to the surface layer sheet 24. There is no back up. Therefore, since urine and stool do not adhere to the wearer's skin, excrement does not contaminate the wearer's skin.
[0035]
By the mass of feces contained in the expansion and feces receiving portion 23 of the panel 16, as shown in phantom in FIGS. 7 and 8, along with pleated 18 formed in the back sheet 15 is stretched in the longitudinal direction, the backsheet The pleats 19 formed in 15 extend in the lateral direction. Through the pleats 18 and 19, the back sheet 15 is deformed in a downward convex shape indicated by an arrow Z1, and a space 22 having a given volume is formed.
[0036]
Even if the panel 16 expands , since the space 22 is formed, the back sheet 15 does not hinder the expansion of the panel 16, and excrement can flow between the back sheet 15 and the panel 16, The panel 16 can be made to absorb and hold | maintain excrement rapidly, utilizing the substantially whole area of the panel 16 for absorption of excrement. Before the urine and stool are excreted , the back sheet 15 does not deform downwardly via the pleats 18 and 19.
[0037]
Since the stool storage part 23 is formed directly under the defecation opening 12, the stool can be stored in the stool storage part 23, and even if a large amount of stool is excreted, the stool remains on the surface sheet 24. There is nothing.
[0038]
As the top sheet 2, any of a hydrophilic fiber nonwoven fabric, a hydrophobic fiber nonwoven fabric having a large number of openings, and a liquid-permeable plastic film having a large number of fine holes can be used. For the inner sheet 3, the leak-proof sheet 4 and the back sheet 15, a hydrophobic fiber nonwoven fabric, a breathable liquid-impervious plastic film, a composite nonwoven fabric in which a hydrophobic fiber nonwoven fabric is laminated, a hydrophobic fiber nonwoven fabric and a breathable liquid-impervious plastic Any of the composite sheets laminated with the film can be used.
[0039]
The inner sheet 3, the leak-proof sheet 4, and the back sheet 15 use a composite nonwoven fabric in which a fiber nonwoven fabric having a high water resistance is sandwiched between fiber nonwoven fabrics by a spunbond method having high strength and good flexibility. You can also
[0040]
As a nonwoven fabric, what was manufactured by each manufacturing method of a spunlace, a needle punch, a melt blown, a thermal bond, a spun pond, a chemical bond, and an air through can be used. As the constituent fibers of the nonwoven fabric, polyolefin-based, polyester-based, polyamide-based fibers, core-sheath type composite fibers or parallel type composite fibers made of polyethylene / polypropylene or polyethylene / polyester can be used.
[0041]
For the top sheet 2, the inner sheet 3 , the leak-proof sheet 4, and the back sheet 15, a stretchable fiber nonwoven fabric having elastic stretchability in the horizontal direction, the vertical direction, and the like can also be used. As the stretchable nonwoven fabric, those produced by melt blown and spunbond manufacturing methods can be used. As the constituent fiber of the stretchable nonwoven fabric, a stretchable fiber obtained by melting and spinning a thermoplastic elastomer resin can be used. Further, for the top sheet 2, the inner sheet 3, the leak-proof sheet 4, and the back sheet 15, at least one surface of a stretchable fiber nonwoven fabric made of thermoplastic elastomer resin fibers is made of any one of polypropylene, polyethylene, and polyester. A composite nonwoven fabric obtained by bonding together fiber nonwoven fabrics made of crimped fibers obtained by melting and spinning a resin can also be used.
[0042]
For fixing the top sheet 2, the inner sheet 3 , the leakproof sheet 4, the back sheet 15, the panel 16, and the elastic members 13, 14, and 17, the hot melt adhesive or heat seal is used. It is possible to use heat welding means such as sonic seal.
[0043]
Excretion treating articles 1A shown, in 1B, the size and shape of the urination and defecation apertures 11 and 12 is not particularly limited, but it may also be formed which opening is three or more. There is no particular limitation on the size of the backsheet 15, no particular limitation on the number of pleats 18 and 19 have greens. May be formed flop Lietz 18 one or more, it may not pleats 19 are formed.
[0044]
In FIG. Excretion treating articles 1B shown in 5, so as to be able to remove the backsheet 15, has both end portions 15a of the backsheet 15 and the side portions 15b is releasably affixed on the back (inner) face of the surface layer sheet 24 May be. In this case, after the stool is excreted, the stool and the back sheet 15 can be discarded separately .
[0045]
【The invention's effect】
According to the disposable excrement disposal article according to the present invention, the urine and stool excreted through it reach the liquid-absorbing panel through the opening, and the excrement is absorbed and retained by the panel. Does not revert to the inner surface of the article from the panel, and the excrement does not remain on the article. In this article, urine and stool do not adhere to the wearer's skin, and the excrement does not contaminate the wearer's skin. In this article, due to the expansion of the panel, the first pleat formed on the covering sheet extends, and the back sheet extends downward in the thickness direction of the article to form a given volume space between the article and the covering sheet. The In this article, even panel is expanded, the first pleat between empty and extended are formed, rather than the backsheet to inhibit expansion of the panel, excreta between the cover sheet and the panel It is possible to flow, and it is possible to absorb and hold the excrement quickly in the panel by utilizing the substantially whole area of the panel for the absorption of excrement.
[0046]
In an article in which the first pleat and a number of second pleats are formed on the back sheet, urine and stool excreted in the back sheet reaches the liquid-absorbing panel through the opening, and the excrement is absorbed by the panel. Since it is held, urine and stool do not adhere to the wearer's skin, and the excrement does not contaminate the wearer's skin. This article, by the expansion of the panel, together with the first pleats also extended second pleated backsheet is the space volume given Tokoro extends in the thickness direction below the article is formed. In this article, a space large kina volume is formed than articles which only the first pleat on the back sheet is formed. In this article, even panel is expanded, the first pleat and the second pleat between empty and extended are formed, rather than the backsheet to inhibit expansion of the panel, excreta and the backsheet It can flow between the panels, and the waste can be quickly absorbed and retained in the panel by utilizing the entire area of the panel for the absorption of the waste.
[0047]
In an article having a leak-proof sheet on both sides of the urination and defecation opening, when it is curved in the vertical direction, the elastic member contracts in the vertical direction and the free side portion of the leak-proof sheet stands up above the article. In this article, even if urine or stool is excreted on the article, the free side portion of the leak-proof sheet forms a barrier against the excrement, so that the excrement can be prevented from leaking from the crotch region. it can.
[0048]
In an article that does not have a liquid-absorbing panel directly under the defecation opening, a stool accommodating portion corresponding to the thickness of the panel is formed immediately under the defecation opening, so that stool can be accommodated in the stool accommodating portion. Even if the stool is excreted, the stool does not remain on the article.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view of an excretion processing article shown from the skin contact side.
FIG. 2 is a perspective view of the excretion processing article of FIG. 1 shown from the non-skin contact side.
3 is a cross-sectional view taken along line AA in FIG.
4 is a cross-sectional view taken along line BB in FIG.
FIG. 5 is a partially broken perspective view of an excretion processing article of another embodiment shown from the skin contact side.
6 is a perspective view of the excretion processing article of FIG. 5 shown from the non-skin contact side.
7 is a cross-sectional view taken along the line CC of FIG.
8 is a cross-sectional view taken along line DD in FIG.
[Explanation of symbols]
1A excretion treated article 1B excretion treated article 2 liquid permeable surface sheet 3 liquid permeable inner surface sheet 4 liquid permeable leakproof sheet 4a fixed side part 4b free side part 4c fixed both end parts 5 front waist circumference area 6 inseam area 7 Rear waist area 11 Urination opening 12 Defecation opening 15 Impermeable back sheet 15a Both ends (periphery)
15b Both sides (periphery)
16 Liquid-absorbing panel 17 Stretchable elastic member 18 First pleat 19 Second pleat
24 Surface sheet

Claims (3)

The front and rear waist area is located in the vertical direction and the crotch area is located between them, and is formed with a surface sheet that faces the skin contact side and an inner surface sheet that adheres to the inner surface, and an opening that allows excretion to pass through is formed. In the excretion processing article comprising a surface layer sheet, a liquid-impermeable back sheet, and a liquid-absorbing panel interposed between the surface layer sheet and the back sheet, the liquid-absorbing panel expands. Formed from a micturition opening and a defecation opening that are spaced apart from each other in the direction,
The liquid-absorbing panel is present between the surface sheet and the back sheet in a region including directly under the defecation opening and not including immediately under the defecation opening, and is fixed to the inner surface of the surface sheet. The excretion processing article , wherein the back sheet has pleats extending in at least one of the longitudinal direction and a transverse direction intersecting the longitudinal direction . The excretion processing article according to claim 1 in which said back sheet has the 2nd pleat which crosses said pleat . A pair of liquid-impervious leak-proof sheets that extend in the longitudinal direction from the crotch region toward the front-rear waist region on both sides of the urination and defecation opening on the surface of the surface sheet,
The leak-proof sheet is fixed to the surface of the surface layer sheet, the fixed side portion fixed to the surface of the surface layer sheet, the free side portion having a tendency to stand up above the article, and the surface fixed to the surface of the surface layer sheet in the front and rear waist area The excretion disposal article according to claim 1 or 2 which has both ends and an elastic member which extends in the lengthwise direction on said free side is attached under extension .

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