JP2003135522A - Throwaway wearing article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a throwaway wearing article allowing excrement to smoothly flow from an opening of a covering sheet into a pocket formed between a surface sheet and the covering sheet. SOLUTION: This throwaway wearing article 1 is compose of a panel 2 with a liquid absorptive core 5 interposed between a surface sheet 3 and a back face sheet 4, and a covering sheet 16 positioned on the outer surface of the surface sheet 3 and having an opening 17 at the center. Both end parts 18 and both side parts 19 of the covering sheet 16 are stuck to the panel 2, and a pocket is formed between the surface sheet 3 and the covering sheet 16. Sheet pieces 22, 23 for separating the covering sheet 16 upward from the surface sheet 3 are positioned in the front and rear body peripheral regions 6, 8 of the panel 2 and longitudinally extended on the outer surface of the covering sheet 16. Each of the sheet pieces 22, 23 has an outer end part 25 stuck to each side part 19 of the covering sheet; an inner end part 26 stuck to an opening edge part 20 of the covering sheet 16; and an intermediate part 27 not stuck to the covering sheet 16. In the article 1, the pocket is opened wide when the covering sheet 16 is lifted by the sheet pieces 22, 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable wearing article that absorbs and retains excrement.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 5-277149 discloses a liquid-absorbent laminated panel in which a liquid-absorbent core is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and an outer surface of the top sheet. Disclosed is a liquid-impermeable cover sheet, wherein the cover sheet has an elongated oval opening in the longitudinal direction at a substantially central portion thereof, and the outer peripheral edge portion of the cover sheet is fixed to a laminated panel. ing. A stretchable elastic member is attached to the opening edge of the cover sheet in an extended state. A pocket capable of accommodating excrement is formed between the top sheet and the cover sheet.

In this wearing article, since the opening edge of the cover sheet floats above the top sheet due to the contraction of the elastic member, the opening edge can be brought into close contact with the wearer's skin, and excrement can be opened in the cover sheet. Flows into the pocket from. The excrement is stored in the pocket, then passes through the topsheet, and is absorbed by the core.

[0004]

In the wearing article disclosed in the above publication, the opening edge portion of the covering sheet only slightly floats above the surface sheet, and the remaining portion of the covering sheet excluding the opening edge portion is the surface. It remains in contact with the outer surface of the sheet and does not separate upwards from the outer surface of the topsheet. Therefore, in this worn article, the pocket does not open widely and the excrement may not be able to smoothly flow into the pocket.

An object of the present invention is to provide a disposable wearing article capable of smoothly flowing excrement from the opening of the cover sheet into the pocket formed between the top sheet and the cover sheet.

[0006]

Means for Solving the Problems The premise of the present invention for solving the above-mentioned problems is to have a liquid-permeable surface having longitudinal front and rear waist regions and a crotch region located between these waist regions. A liquid-absorbent laminated panel in which a liquid-absorbent core is interposed between a sheet and a substantially liquid-impermeable backsheet, and a cover sheet located on the outer surface of the topsheet, the cover sheet being substantially the same. The disposable wearing article has an opening in the center, an outer peripheral edge portion of the cover sheet is fixed to the laminated panel, and a pocket capable of accommodating excrement is formed between the surface sheet and the cover sheet.

The feature of the present invention based on the above-mentioned premise is that a sheet piece capable of separating the remaining portion of the covering sheet excluding the outer peripheral edge portion from the outer surface of the top sheet upward.
Extending the outer surface of the covering sheet in the longitudinal direction at at least one of the front and rear waist regions, the sheet piece is
An outer end portion fixed to a peripheral edge portion of the front and rear waist region, an inner end portion positioned longitudinally inward of the outer end portion and fixed to an opening edge portion of the covering sheet, and the outer inner portion It has a middle part which is located between the end parts and which is not fixed to the covering sheet.

As an example of an embodiment of the present invention, the sheet piece is formed by at least two sheet pieces arranged side by side in the front and rear waist region with a given distance therebetween.

As another example of the embodiment of the present invention, in the wearing article, the sheet piece has elastic elasticity in the longitudinal direction, and the sheet piece is stretched in the longitudinal direction. The outer end and the inner end of the piece are fixed.

As another example of the embodiment of the present invention, a stretchable elastic member is attached to the opening edge portion of the cover sheet in a stretched state.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Details of a disposable wearing article according to the present invention will be described below with reference to the accompanying drawings.

1 and 2 are a partially cutaway perspective view of the wearing article 1 and a sectional view taken along the line AA of FIG. 1, and FIGS.
It is the BB sectional view taken on the line in FIG. 1, and the cross-sectional perspective view of the wearing article 1 of FIG. 1 shown in a worn state. In FIG. 1, the horizontal direction is indicated by arrow X and the vertical direction is indicated by arrow Y. In FIG. 4, the wearer 30 is shown by a chain double-dashed line. The inner surfaces of the front and back sheets 3, 4 and the covering sheet 16 are surfaces facing the core 5, and the outer surfaces of the sheets 3, 4, 16 are surfaces not facing the core 5.

The wearing article 1 comprises a liquid-absorbent laminated panel 2 and
It is composed of a substantially liquid-impermeable cover sheet 16. The wearing article 1 is an open type that connects the front and rear waist regions 6, 8 when worn.

The laminated panel 2 has a substantially non-stretchable and liquid-permeable surface sheet 3 located on the skin contact side and a substantially non-stretchable and liquid-impermeable surface sheet 3 located on the skin non-contact side. Back sheet 4 and liquid-absorbent core 5 interposed between the sheets 3 and 4
It is formed from and. The core 5 is fixed to the inner surface of at least one of the topsheet 3 and the backsheet 4.

The laminated panel 2 has a front waistline region 6 and a rear waistline region 8 and a crotch region 7 located between the waistline regions 6 and 8 in the longitudinal direction. The laminated panel 2 includes a waist end portion 9 extending laterally in the front and rear waist regions 6, 8; a waist side portion 10 extending longitudinally in the front and rear waist regions 6, 8; and a crotch region 7
With a leg side portion 11 extending in the vertical direction. In the laminated panel 2, the leg side portions 11 substantially form an arc inward in the lateral direction, and the planar shape thereof is an hourglass shape.

A band-shaped waist elastic member 12 extending in the lateral direction is attached to the waist end 9 in a stretched state. The leg-side elastic member 13 extending in the longitudinal direction is attached to the leg-side portion 11 in a stretched state.

A pair of tape fasteners 14 extending inward in the lateral direction are attached to the waist side portion 10 of the back waist region 8. A rectangular target tape 15 serving as a fastening area for the tape fastener 14 is attached to the outer surface of the back sheet 4 in the front waist region 6. Tape fastener 1
An adhesive agent (not shown) is applied to the free end portion of No. 4, and the free end portion of the rear waist region 8 of the rear waist region 8 is attached via the adhesive agent.
Is temporarily dressed in. The target tape 15 is formed of a flexible plastic film.

The covering sheet 16 is substantially non-stretchable and has an oval opening 17 elongated in the longitudinal direction at the center thereof. The opening 17 extends from the crotch region 7 of the laminated panel 2 to a part of the front and rear waist regions 6, 8. The opening 17 may be formed at the position of the crotch region 7 of the laminated panel 2 without reaching the front and rear waist regions 6, 8.

The covering sheet 16 has both end portions 18 (outer peripheral edge portions) extending laterally around the waist-surrounding end portion 9 of the laminated panel 2, the waist-surrounding side portion 10 and the leg-surrounding side portion 11 of the laminated panel 2. It has both side portions 19 (outer peripheral edge portions) extending in the direction and an opening edge portion 20 surrounding the opening 17. In the covering sheet 16, the both side portions 19 extending to the leg side portions 11 substantially form an arc inward in the lateral direction, and the planar shape thereof is an hourglass shape.

In the cover sheet 16, both ends 18 are fixed to the waist end 9 and both sides 19 are fixed to the waist side 10 and the leg side 11. The remaining portions of the covering sheet 16 excluding both ends 18 and both sides 19 are not fixed to the laminated panel 2 and are separated from the laminated panel 2. A stretchable elastic member 21 is attached to the opening edge portion 20 of the covering sheet 16 in an extended state. Elastic member 21
Is covered by a part of the covering sheet 16.

In the front waist region 6, two sheet pieces 22 extend in the longitudinal direction on the outer surface of the covering sheet 16. In the rear waist region 8, the outer surface of the covering sheet 16 is covered with two sheet pieces 23.
Extends in the vertical direction. The sheet pieces 22 and 23 are
The front and rear waist regions 6, 8 extend from the waist end 9 side toward the crotch region 7.

Two sheet pieces 22 extending in the front waist region 6
Is arranged in the front waistline region 6 in the lateral direction with a given distance therebetween, and gradually extends from the side of the waistline region 9 toward the crotch region 7 to a vertical center line Z that bisects the lateral dimension of the wearing article 1. It extends so as to approach it. The two sheet pieces 23 extending to the rear waistline region 8 are arranged in the rear waistline region 8 in the lateral direction with a given distance therebetween, and are arranged in the longitudinal center as the waistline region 9 side is approached to the crotch region 7. It extends so as to gradually approach the line Z.

The sheet pieces 22 and 23 are formed of two substantially non-stretchable fibrous non-woven fabrics having opposed surfaces fixed to each other and overlapping each other. In the sheet pieces 22 and 23,
A stretchable elastic member 24 extending in the longitudinal direction is attached in an extended state. Therefore, the sheet pieces 22 and 23 can be expanded and contracted in the vertical direction.

The sheet pieces 22 and 23 are located at the outer end portions 25 fixed to both side portions 19 of the cover sheet 16 located near the waist-surrounding end portion 9 and inward of the outer end portions 25 in the vertical direction, It has an inner end portion 26 fixed to the opening edge portion 20 of the covering sheet 16 immediately above the crotch region 7, and an intermediate portion 27 located between the outer inner end portions 25, 26. The outer and inner ends 25, 26 of the sheet pieces 22, 23 are fixed to the outer surface of the covering sheet 16. The intermediate portion 27 of the sheet pieces 22 and 23 is not fixed to the cover sheet 16 and is separated from the cover sheet 16. In the sheet pieces 22 and 23, the outer and inner ends 25 and 26 of the sheet pieces 22 and 23 are extended in the longitudinal direction, and the covering sheet 1
6 are fixed to both side portions 19 and the opening edge portion 20.

In order to wear the wearing article 1, the waist circumference side portion 10 of the rear waist circumference area 8 and the waist circumference side portion 10 of the front waist circumference area 6 are worn.
Tape fastener 1 on the outside of the
The free end of 4 is fixed to the target tape 15 and the front and rear waist regions 6, 8 are connected. As shown in FIG. 4, the wearing article 1 in which the front and rear waist regions 6, 8 are connected to each other has a waist opening 2
8 and a pair of leg openings 29 are formed therebelow.

In the wearing article 1, a pocket P capable of accommodating excrement is formed between the topsheet 3 and the covering sheet 16. In the wearing article 1, when it is curved in the longitudinal direction with the covering sheet 16 inside, the sheet pieces 22 and 23 move the remaining portions of the covering sheet 16 excluding the both end portions 18 and both side portions 19 to above the topsheet 3. It is lifted, and the portion is separated upward from the outer surface of the topsheet 3.

In the wearing article 1, the pocket P is formed by separating the above portion of the covering sheet 16 above the topsheet 3.
Does not open the mouth wide and the pocket P does not close the mouth, and excrement can smoothly flow into the pocket P from the opening 17 of the covering sheet 16. The excrement is stored in the pocket P, then passes through the topsheet 3, and is absorbed by the core 5. In the wearing article 1, the laminated panel 2 is the wearer 3
Even if it is separated downward from the crotch portion 31 of 0, the covering sheet 16 hung on the sheet pieces 22 and 23 is worn by the wearer 3
It is possible to maintain the close contact state of the covering sheet 16 with the crotch portion 31 of the wearer 30 without separating from the crotch portion 31 of 0, and to prevent excrement from flowing into the outer surface of the covering sheet 16. .

In the wearing article 1, since the crotch region 7 is sandwiched between the crotch portions 31 of the wearer 30 during wearing, even if the opening 17 of the covering sheet 16 is closed, the sheet pieces 22, 2 are
Since the opening edge portion 20 of the covering sheet 16 is pulled outward in the circumferential direction by 3, the opening 17 of the covering sheet 16 will not be closed. In the wearing article 1, even if the covering sheet 16 tries to move laterally from the crotch portion 31 of the wearer 30 during wearing, the opening edge portion 20 of the covering sheet 16 is pulled by the sheet pieces 22 and 23 and the movement thereof is Since it is suppressed, it is possible to prevent the opening 17 of the covering sheet 16 from being displaced from the crotch portion 31 of the wearer 30.

In the wearing article 1, since the stretchable elastic member 21 is attached to the opening edge portion 20 of the covering sheet 16, the contraction force of the elastic member 21 causes the opening edge portion 20 to rise upward from the outer surface of the topsheet 3. The opening edge portion 20 can be brought into close contact with the crotch portion 31 of the wearer 30.

At the waist circumference end portion 9 of the laminated panel 2, the core 5
3a of the topsheet 3 and the backsheet 4 from the edge 5a of the
The end portions 4a of the
The overlapping ends 3a and 4a are fixed.
At the waist end portion 9, the end portion 18 of the covering sheet 16 is fixed to the outer surface of the end portion 3 a of the topsheet 3. The waistline elastic member 12 is interposed between the end portion 3a of the topsheet 3 and the end portion 4a of the backsheet 4, and the end portions 3 of the sheets 3 and 4 are interposed therebetween.
It is fixed to the inner surfaces of a and 4a.

At the waist side portion 10 and the leg side portion 11 of the laminated panel 2, the side portion 3b of the topsheet 3 slightly extends laterally outward from the side edge 5b of the core 5, and further from the side portion 3b. The side portion 4b of the backsheet 4 extends laterally outward.
In the waist-side portion 10 and the leg-side portion 11, the overlapping side portions 3b and 4b of the sheets 3 and 4 are fixed to each other. In the waist circumference side portion 10 and the leg circumference side portion 11, the side portion 19 of the covering sheet 16 is fixed to the outer surface of the side portion 3b of the topsheet 3 and the inner surface of the side portion 4b of the backsheet 4. The leg elastic members 13 are interposed between the side portions 4b of the back sheet 4 and the side portions 19 of the covering sheet 16, and the sheets 4, 1
It is fixed to the inner surfaces of the side portions 4b and 19 of the reference numeral 6.

As the surface sheet 3, any one of a hydrophilic fibrous nonwoven fabric, a hydrophobic fibrous nonwoven fabric having a large number of openings, and a plastic film having a large number of fine openings can be used. The back sheet 4 and the cover sheet 16 include a hydrophobic fibrous nonwoven fabric, a breathable liquid-impervious plastic film,
Either a composite non-woven fabric in which hydrophobic fibrous non-woven fabrics are superposed or a composite sheet in which a hydrophobic fibrous non-woven fabric and a breathable liquid-impermeable plastic film are superposed can be used. For the sheet pieces 22 and 23, a hydrophilic fiber nonwoven fabric or a hydrophobic fiber nonwoven fabric can be used.

The back sheet 4, the cover sheet 16, and the sheet pieces 22 and 23 are formed by sandwiching a fiber nonwoven fabric having a high water resistance by a melt blown method with a fiber nonwoven fabric by a spunbond method having high strength and good flexibility. It is also possible to use a composite non-woven fabric.

As the non-woven fabric, a non-woven fabric manufactured by a spun lace, needle punch, melt blown, thermal bond, spun pond, chemical bond, or air through process can be used. As the constituent fibers of the non-woven fabric, polyolefin-based fibers, polyester-based fibers, polyamide-based fibers, core / sheath composite fibers or parallel-type composite fibers composed of polyethylene / polypropylene or polyethylene / polyester can be used.

The core 5 is a mixture of fluff pulp and superabsorbent polymer particles or a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic resin fibers, and is compressed to a required thickness. The core 5 is preferably entirely covered with a liquid-permeable sheet such as a tissue paper or a hydrophilic fibrous nonwoven fabric in order to prevent the core 5 from losing its shape and the polymer particles from falling off. As the polymer particles, starch-based, cellulose-based, and synthetic polymer-based particles can be used.

As the stretchable non-woven fabric, one produced by each method of melt blown or spun bond can be used. As the constituent fibers of the stretchable nonwoven fabric, stretchable fibers obtained by melting and spinning a thermoplastic elastomer resin can be used. The sheet pieces 22 and 23 are crimped fibers obtained by melting and spinning a thermoplastic synthetic resin of polypropylene, polyethylene, or polyester on at least one surface of a stretchable fibrous nonwoven fabric made of thermoplastic elastomer resin fibers. It is also possible to use a composite non-woven fabric obtained by laminating fibrous non-woven fabrics.

Fixing of the laminated panel 2 and the covering sheet 16, fixing of the covering sheet 16 and the sheet pieces 22 and 23, fixing of the front and back sheets 3 and 4, fixing of the core 5, elastic member 1
A hot melt adhesive or a heat welding means such as a heat seal or a sonic seal can be used for fixing 2, 13, 21, and 24.

In the front and rear waist regions 6, 8 of the wearing article 1, one sheet piece may extend in the longitudinal direction on the outer surface of the covering sheet 16. When there is one sheet piece, it is preferably attached on the vertical center line Z. Worn article 1
In the front and rear waist regions 6 and 8, the outer surface of the covering sheet 16 is 3
More than one sheet piece may extend in the vertical direction. In the case of three sheet pieces, two pieces are attached to the front and rear waist regions 6, 8 in the vicinity of the waist side 10 and the remaining one is the vertical center line Z.
It is preferably mounted on top.

In the wearing article 1, the elastic members 24 may not be attached to the sheet pieces 22 and 23, and the sheet pieces 22 and 23 have elastic elasticity in longitudinal and lateral directions. It may be formed of either one of a fibrous nonwoven fabric and a stretchable plastic film.

The opening edge portion 20 of the covering sheet 16 is not elastic and elastic so that the opening edge portion 20 is more bulky than the rest of the covering sheet 16 except for the elastic member 21. A foam such as urethane foam having and may be attached. In this case, the foam may be attached to the entire circumference of the opening edge portion 20, or the foam may be attached to a part of the opening edge portion 20.

The present invention can be applied to not only open-type wearing articles which are worn by connecting the front and rear waist regions, but also pants-type wearing articles in which the front and rear waist regions are connected in advance. You can

[0042]

EFFECTS OF THE INVENTION According to the disposable wearing article of the present invention, when it is curved in the longitudinal direction with the surface sheet inside, the covering sheet is hung up on the sheet piece, and the remaining portion of the covering sheet excluding the outer peripheral edge portion. Separate upward from the outer surface of the topsheet. In this wearing article, the pocket formed between the topsheet and the covering sheet has a large opening, and the pocket does not close the opening, and excrement can smoothly flow into the pocket from the opening of the covering sheet. it can.

In the wearing article in which the stretchable elastic member is attached to the opening edge portion of the covering sheet in a stretched state, the contraction force of the elastic member lifts the opening edge portion upward from the outer surface of the topsheet, and the opening edge portion is worn by the wearer. Can be closely attached to the crotch area.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a worn article.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

4 is a cross-sectional perspective view of the worn article of FIG. 1 in a worn state.

[Explanation of symbols]

1 disposable wearing articles 2 liquid absorbent laminated panel 3 Liquid-permeable surface sheet 4 Impermeable back sheet 5 Liquid-absorbent core 6 front waist area 7 inseam 8 rear waist area 16 Cover sheet 17 openings 18 Both ends (outer peripheral edge) 19 Both sides (outer peripheral edge) 20 Opening edge 22 Sheet pieces 23 sheet pieces 24 Stretchable elastic member 25 outer edge 26 Inner end 27 Middle part P pocket

Claims (4)

[Claims] 1. A liquid-absorbent surface sheet and a substantially liquid-impervious back sheet, which have longitudinally front and rear waist regions and a crotch region located between the waist regions, and absorb liquid between the liquid-permeable top sheet and the substantially liquid-impermeable back sheet. A liquid-absorbent laminated panel in which an elastic core is interposed, and a cover sheet located on the outer surface of the top sheet, the cover sheet having an opening at substantially the center thereof, and the outer peripheral edge portion of the cover sheet being the laminate. In a disposable wearing article that is fixed to a panel and in which a pocket capable of accommodating excrement is formed between the surface sheet and the covering sheet, the remaining portion of the covering sheet excluding the outer peripheral portion is the outer surface of the surface sheet. A sheet piece that can be separated from the upper part of the front and rear waistline areas in at least one of the front and rear waistline areas and extends longitudinally on the outer surface of the cover sheet. Partly The outer end portion, the inner end portion that is positioned inward of the outer end portion in the vertical direction and fixed to the opening edge portion of the covering sheet, and the covering portion that is located between the outer inner end portion. The wearing article, which has a non-fixed intermediate portion on a sheet. 2. The wearing article according to claim 1, wherein the sheet pieces are formed of at least two sheet pieces arranged side by side in the lateral direction of the front and rear waist regions with a given distance therebetween. 3. In the wearing article, the sheet piece has elastic elasticity in the vertical direction, and the sheet piece has an outer end portion and an inner end portion in a state where the sheet piece is extended in the vertical direction. The wearing article according to claim 1 or 2, wherein the article is fixed. 4. The wearing article according to claim 1, wherein a stretchable elastic member is attached to the opening edge portion of the cover sheet in a stretched state.