JP2003275247A - Disposable wearing article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable wearing article in which discharged loose passage is prevented from being stuck to the crotch of a wearer. <P>SOLUTION: This disposable wearing article 1A is constituted of a wearing sheet 4 having an opening 13 which penetrates in the thickness direction in a region under the crotch, and a liquid-impermeable covering sheet 5 arranged in the outer surface of the wearing sheet 4 and covering the opening 13. A passage storage 17 communicating with the opening 13 is formed between the wearing sheet 4 and the covering sheet 5. The wearing sheet 4 comprises a liquid-permeable surface sheet 2 and a liquid-impermeable back sheet 3, and a first liquid absorptive core 6 is interposed between the surface sheet 2 and the back sheet 3, and an inner absorptive sheet 7 for absorbing water component of passage is mounted on the remaining portion 5b of the covering sheet 5 except the outer periphery 5a thereof. <P>COPYRIGHT: (C)2003,JPO

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 Utility Model Laid-Open No. 6-34618 discloses a front waist region and a rear waist region in which a liquid-absorbent core is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet. And a crotch region located between the waist regions, and an opening penetrating the front and back sheets and the core in the thickness direction is formed in the lateral center of the crotch region to cover the opening. Disclosed is an open-type disposable diaper in which a liquid-permeable stool treatment sheet is arranged on the outer surface of a top sheet, and a liquid-impermeable holding sheet covering an opening is arranged on the outer surface of a back sheet.

In this diaper, the treatment sheet is recessed in the opening, and the treatment sheet and the gripping sheet are fixed to each other in the opening. The gripping sheet has its outer peripheral edge portion removably temporarily fixed to the outer surface of the back sheet. At the opening, the processing sheet and the gripping sheet form a recess that can accommodate stool. This diaper has an effect that by pulling the holding sheet to the outside of the back sheet, the stool stored in the recess can be taken out to the outside of the diaper from the opening together with the treatment sheet.

[0004]

In the diaper disclosed in the above publication, since the treatment sheet located in the recess does not have a water absorbing function, loose stools with high fluidity in the stool are excreted in the diaper. When stored in the recess, loose feces remain in the recess while maintaining high fluidity. In this diaper, when the wearer's body pressure is applied to it and the recess is crushed, loose stool remaining in the recess easily leaks from the recess, and the leaked loose stool diffuses on the outer surface of the surface sheet, so that the wearer's crotch part Loose stool may spread over a wide area.

An object of the present invention is to provide a disposable wearing article which can prevent excreted loose feces from adhering to the crotch of a wearer.

[0006]

Means for Solving the Problems The premise of the present invention for solving the above-mentioned problems is to provide front and rear waist regions and a crotch region located between these waist regions, and at least the crotch region of those regions. A wearing sheet having at least one opening penetrating in the thickness direction, and a liquid-impervious covering sheet which is arranged on the outer surface of the wearing sheet and covers the opening. In the disposable wearing article, the outer peripheral edge portion of the covering sheet located on one side is fixed to the wearing sheet, and the excrement container connected to the opening is formed between the wearing sheet and the covering sheet.

The feature of the present invention on the above-mentioned premise is that at least one water-absorbent interior sheet disposed in the excrement container for absorbing moisture of excrement is provided in the remaining portion of the covering sheet excluding the outer peripheral edge portion. It is installed.

The present invention has the following embodiments. (1) The interior sheet is attached to the wearing sheet extending between the peripheral edge of the opening and the outer peripheral edge of the cover sheet. (2) The interior sheet is a fibrous nonwoven fabric made of at least one of natural cellulosic fibers, regenerated cellulosic fibers, and synthetic polyolefin fibers subjected to hydrophilic treatment. (3) Water absorption of the interior sheet (JIS P8141:
Krem method) is in the range of 200 mm / 1 minute to 30 mm / 1 minute. (4) The cover sheet and the interior sheet attached thereto are formed with a large number of first pleats that undulate in a wavy manner from the central portion of the residual portion toward the outer peripheral edge portion and extend in a regression line shape. ing. (5) A large number of second pleats formed by folding the covering sheet and the interior sheet attached to the covering sheet extend in one of the longitudinal direction and the lateral direction. . (6) The dressing sheet is formed of a liquid-permeable top sheet located on the skin contact side and a liquid-impermeable back sheet located on the skin non-contact side, and the liquid-absorbent first core is the The article is provided between the top sheet and the back sheet, and the article has the opening that penetrates the front and back sheets and the first core in a thickness direction thereof. (7) The liquid absorbing second core is interposed between the cover sheet and the interior sheet attached to the cover sheet. (8) The liquid absorbing third core is interposed between the wearing sheet and the interior sheet attached to the wearing sheet.

[0009]

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 show a worn article 1A as an example.
2 is a partially cutaway perspective view of FIG. 1 and a partially cutaway perspective view of the article 1A of FIG. 1 viewed from the back sheet 3 side.
2 is a sectional view taken along the line AA of FIG. 1 and a sectional view taken along the line BB of FIG. 1 and 2, the horizontal direction is indicated by arrow X, the vertical direction is indicated by arrow Y, and the thickness direction is indicated by arrow Z. The front and back sheets 2, 3, the covering sheet 5, and the inner surface of the interior sheet 7 are the surfaces facing the first core 6, and the sheets 2, 3,
The outer surfaces of 5 and 7 are surfaces that do not face the first core 6.

The article 1A is arranged on the outer surface of the backsheet 3 and a wearing sheet 4 composed of a liquid-permeable topsheet 2 located on the skin contact side and a liquid-impermeable backsheet 3 located on the skin non-contact side. And the liquid impermeable coating sheet 5 thus prepared. The article 1A includes a liquid-absorbent first core 6 which is interposed between the front and back sheets 2 and 3 and fixed to the inner surface of at least one of the sheets 2 and 3, and a water-absorbing material attached to the cover sheet 5. And an interior sheet 7.

The dressing sheet 4 has a front waist region 8 and a rear waist region 10 and a crotch region 9 located between the waist regions 8 and 10 in the longitudinal direction. The wearing seat 4 is a core 6
Has a pair of side flaps 11 that extend in the vertical direction outside the both side edges 6a, and a pair of end flaps 12 that extend in the lateral direction outside the both end edges 6b of the core 6. Dressing sheet 4
Then, the side flap 11 forms an arc in the crotch region 9 inward in the lateral direction. The dressing sheet 4 has an hourglass shape in plan view. An opening 13 is formed in the crotch region 9 of the wearing sheet 4 so as to penetrate the front and back sheets 2, 3 and the core 6 in the thickness direction.

The opening 13 has a vertically elongated circular shape and is formed in the lateral center of the crotch region 9 and in the rear half of the crotch region 9. At the peripheral edge 14 of the opening 13, the top sheet 2 and the back sheet 3 are overlapped with each other,
The inner surfaces of 3 are fixed. The entire area of the opening 13 is covered with the covering sheet 5.

The side flaps 11 are formed on both side edges 6 of the core 6.
It is formed of a side portion 2a of the topsheet 2 and a side portion 3a of the backsheet 3 which extend laterally outward from a. To the end flap 12, a plurality of leg elastic members 15 extending in the vertical direction are attached in a contractable manner. In the end flap 12, the inner surfaces of the side portions 2a and 3a of the sheets 2 and 3 are fixed in a state where the side portions 2a and 3a of the front and back sheets 2 and 3 overlap each other. The leg elastic members 15 are interposed between the side portions 2a of the topsheet 2 and the side portions 3a of the backsheet 3, and the side portions 2 of the sheets 2 and 3 are interposed therebetween.
It is fixed to the inner surfaces of a and 3a.

The end flaps 12 are both end edges 6 of the core 6.
It is formed from an end portion 2b of the topsheet 2 and an end portion 3b of the backsheet 3 that extend outward in the vertical direction from b. A band-shaped elastic member 16 for the waistline extending in the lateral direction is contractably attached to the end flap 12. In the end flap 12, the end portions 2b and 3b of the front and back sheets 2 and 3 are overlapped with each other and the end portions 2 and 3 of the sheets 2 and 3 are overlapped with each other.
The inner surfaces of b and 3b are fixed to each other. The waist elastic member 16 is interposed between the end portion 2b of the top sheet 2 and the end portion 3b of the back sheet 3, and the end portions 2 of the sheets 2 and 3 are interposed.
It is fixed to the inner surfaces of b and 3b.

The covering sheet 5 has an outer peripheral edge portion 5a located circumferentially outward of the peripheral edge 14 of the opening 13, and a residual portion 5b excluding the outer peripheral edge portion 5a. In the covering sheet 5, the inner surface of the outer peripheral edge portion 5 a is fixed to the outer surface of the back sheet 3, and the remaining portion 5 a
b is not fixed to the back sheet 3. A waste container 17 is formed between the wearing sheet 4 and the covering sheet 5 and connected to the opening 13.

The interior sheet 7 is arranged in the waste container 17, and its outer surface is intermittently fixed to the inner surface of the remaining portion 5b of the covering sheet 5 with an adhesive (not shown). For the interior sheet 7, a fibrous nonwoven fabric made of at least one of a cellulosic natural fiber, a cellulosic regenerated fiber, and a hydrophilic treated polyolefin synthetic fiber is used.

Examples of the cellulosic natural fibers include pulp and fluff. The pulp may be at least one of mechanical pulp, chemical mechanical pulp, semi-chemical pulp, and chemical pulp.
As the natural fibers, mercerized fibers can also be used.

As the cellulosic regenerated fiber, rayon fiber can be exemplified. It is preferable to use, as the rayon fiber, a large number of secondary fibers, which are smaller than the fiber main body, branch and extend from the fiber main body by beating. Such rayon fiber is disclosed in Japanese Patent Laid-Open No.
No. 01-172850.

Examples of polyolefin synthetic fibers include polyethylene synthetic resin fibers, polypropylene synthetic resin fibers, polyvinyl chloride synthetic resin fibers, and polystyrene synthetic resin fibers.

A side flap 11 is provided in the rear waist region 10.
Attached is a tape fastener 18 that extends laterally outwardly from. A hook member 19 of the mechanical fastener is attached to the free end of the tape fastener 18. On the outer surface of the back sheet 3 in the front waist region 8, a rectangular target tape 20 which is long in the lateral direction and which detachably fastens the tape fastener 18 is attached. The target tape 20 is formed of a loop member 21 of the mechanical fastener.

To wear the article 1A, the rear waist region 10
The side flaps 11 of the above are overlapped with the outside of the side flaps 11 of the front waist region 8 and the hook members 19 and the loop members 21 are engaged to fix the free ends of the tape fasteners 18 to the target tape 20. The waist region 8 and the rear waist region 10 are connected. In the article 1A in which the front and rear waist regions 8 and 10 are connected, a waist opening and a pair of leg openings are formed below the waist opening (not shown).

In the article 1A, when loose feces (not shown) are excreted therein, the loose feces pass through the opening 13 and are accommodated in the excrement container 17. In the article 1A, the moisture contained in loose stool is absorbed by the interior sheet 7, so that only the solid content contained in the loose stool remains on the interior sheet 7. Excrement container 17
Then, the fluidity of loose stool contained in it is lower than that when excreted. In the article 1A, moisture and solids contained in loose stool are separated by the interior sheet 7, and only solid stool that does not show fluidity remains on the interior sheet 7,
The loose stool does not remain in the excrement container 17 while maintaining high fluidity. In the article 1A, even if the wearer's body pressure is applied to it, solid matter that does not show fluidity does not leak from the opening 13, and solid matter does not flow on the outer surface of the topsheet 2. It is possible to prevent loose stool from adhering to the wearer's skin. Article 1A
The urine excreted in the membrane penetrates the surface sheet 2 and is absorbed by the core 6.

In the article 1A, the interior sheet 7 JIS P
8141 Water absorption by Krem method is 200 mm / 1 min.
It is in the range of 30 mm / 1 minute. When the water absorption is less than 30 mm, the moisture contained in loose stool cannot be sufficiently absorbed in the interior sheet 7 in a short time, and the soft stool stored in the excrement storage unit 17 is kept in a high fluidity. It remains in the waste container 17.

5 and 6 are a partially cutaway perspective view of a worn article 1B as another example and a partially cutaway perspective view of the article 1B of FIG. 5 shown from the back sheet 3 side, and FIGS. ,
6 is a sectional view taken along the line CC of FIG. 5 and a sectional view taken along the line DD of FIG. 5 and 6, the horizontal direction is indicated by arrow X, the vertical direction is indicated by arrow Y, and the thickness direction is indicated by arrow Z.

The article 1B comprises a dressing sheet 4 composed of a liquid-permeable top sheet 2 and a liquid-impermeable back sheet 3, and a liquid-impermeable cover sheet 5 arranged on the outer surface of the back sheet 3. . The article 1B has a liquid-absorbent first core 6 interposed between the front and back sheets 2 and 3, and water-absorbent interior sheets 7 and 23 attached to the back sheet 3 and the cover sheet 5.

The wearing sheet 4 is formed with an opening 13 penetrating the front and back sheets 2, 3 and the core 6 in the thickness direction. The wearing seat 4 is provided with a pair of leak-proof sheets 22 located in the side flaps 11 and extending in the longitudinal direction from the crotch region 9 toward the front and rear waist regions 8, 10. The covering sheet 5 has the outer peripheral edge portion 5 a fixed to the outer surface of the back sheet 3 while covering the entire area of the opening 13. A waste container 17 is formed between the wearing sheet 4 and the covering sheet 5 and connected to the opening 13.

The interior sheets 7 are two sheets that overlap each other, and the outer surfaces thereof are intermittently fixed to the inner surface of the remaining portion 5b of the covering sheet 5 with an adhesive (not shown).
The interior sheets 7 are adhered to each other intermittently with the facing surfaces of the sheets 7 via an adhesive (not shown). The inner sheet 23 is composed of two sheets that overlap each other, and the inner surface of the inner sheet 23 is the peripheral edge 14 of the opening 13 and the outer peripheral edge portion 5 a of the cover sheet 5.
Is intermittently fixed to the outer surface of the back sheet 3 extending between the two via an adhesive (not shown). Interior seat 23
The opposite surfaces of the sheets 23 are intermittently fixed to each other via an adhesive (not shown). Interior seat 7,
For 23, the same fibrous nonwoven fabric as that of FIG. 1 is used. The water absorption of the interior sheets 7 and 23 according to JIS P8141 Klemm method is the same as that of the interior sheet 7 of FIG.

The leak-proof sheet 22 has a fixed side portion 22a extending in the vertical direction, a free side portion 22b extending upward in the upright direction of the top sheet 2, and a free side portion 22b extending inward in the horizontal direction of the article 1B. It has the fixed both ends 22c. Free side 22
A stretchable elastic member 24 extending in the vertical direction is contractably attached to b. The elastic member 24 has a free side portion 22.
It is coated on part of b.

The side flaps 11 are front and back sheets 2,
Fixed side portion 22a of the leak-proof sheet 22
It is formed from and. In the side flap 11, the side portion 2a of the topsheet 2 slightly extends laterally outward from both side edges 6a of the core 6, and further laterally outward from the side portion 2a, the side portion 3a of the backsheet 3 and the leakproof sheet. 22 fixed side 22
a and are extended. The side portion 2a includes a side portion 3a and a side portion 22a.
And is fixed to the side portions 3a and 22a. The side portion 3a and the side portion 22a are the side portions 3a, 2
The overlapping portions of 2a are fixed. The leg elastic members 15 are interposed between the side portion 3a of the back sheet 3 and the fixed side portion 22a of the leak-proof sheet 22, and are fixed to the side portions 3a, 22a of the sheets 3, 22. The fixed end portions 22c of the leak-proof sheet 22 are the end portions 2 of the topsheet 2.
b It is fixed to the outer surface.

In the article 1B, the moisture of loose stools (not shown) contained in the excrement container 17 is used as the interior sheets 7 and 2.
3, and only the solid content contained in loose stool remains on the interior sheet 7. In the article 1B, moisture and solids contained in loose stools are separated by the interior sheets 7 and 23, and only solid stools having no fluidity remain on the interior sheet 7, so that the soft stools maintain high fluidity. It does not remain in the excrement container 17 as it is. In the article 1B, the solid content does not leak from the openings 13 and the solid content does not flow on the outer surface of the topsheet 2, so that loose stools can be prevented from adhering to the wearer's skin. .

In the article 1B, since the two interior sheets 7 are attached to the inner surface of the cover sheet 5 and the two interior sheets 23 are attached to the outer surface of the back sheet 3, the interior sheets 7 and 23 are formed. In addition, a large amount of water contained in loose stool can be absorbed, and the water absorption function of the waste container 17 can be made higher than that of the article 1A of FIG.

In the article 1B, when the article 1B is curved in the longitudinal direction with the surface sheet 2 inside, the elastic member 24 contracts in the longitudinal direction so that the free side portion 22b of the leak-proof sheet 22 becomes the surface sheet 2.
Stand up above. In the article 1B, since the free side portion 22b of the leak-proof sheet 22 forms a barrier against excrement, the excrement can be prevented from leaking from the crotch region 9.

9 and 10 are a partially broken perspective view of a worn article 1C shown as another example and a perspective view of the article 1C of FIG. 9 shown from the back sheet 3 side, and FIGS. 9 is a sectional view taken along line EE of FIG. 9 and a sectional view taken along line FF of FIG. 9. 9 and 10, the horizontal direction is indicated by arrow X, the vertical direction is indicated by arrow Y, and the thickness direction is indicated by arrow Z.

The article 1C comprises a dressing sheet 4 composed of a liquid-permeable top sheet 2 and a liquid-impermeable back sheet 3, and a liquid-impermeable cover sheet 5 arranged on the outer surface of the back sheet 3. . The article 1C has a liquid-absorbent first core 6 interposed between the front and back sheets 2 and 3, and water-absorbent interior sheets 7 and 23 attached to the back sheet 3 and the cover sheet 5.

The wearing sheet 4 is formed with an opening 13 penetrating the front and back sheets 2, 3 and the core 6 in the thickness direction. The wearing seat 4 is provided with a pair of leak-proof sheets 22 located in the side flaps 11 and extending in the longitudinal direction from the crotch region 9 toward the front and rear waist regions 8, 10. The covering sheet 5 has the outer peripheral edge portion 5 a fixed to the outer surface of the back sheet 3 while covering the entire area of the opening 13. A waste container 17 is formed between the wearing sheet 4 and the covering sheet 5 and connected to the opening 13.

The interior sheet 7 has a covering sheet 5 on the outer surface thereof.
Is intermittently fixed to the inner surface of the remaining portion 5b via an adhesive (not shown). The inner sheet 23 is intermittently fixed to the outer surface of the back sheet 3 whose inner surface extends between the peripheral edge 14 of the opening 13 and the outer peripheral edge portion 5a of the cover sheet 5 with an adhesive (not shown). There is. The same fibrous nonwoven fabric as that of FIG. 1 is used for the interior sheets 7 and 23.
The water absorption of the interior sheets 7 and 23 according to JIS P8141 Klemm method is the same as that of the interior sheet 7 of FIG.

On the cover sheet 5 and the interior sheet 7 attached to the cover sheet 5, a large number of first pleats 2 are undulated from the central portion 5c of the residual portion 5b toward the outer peripheral edge portion 5a.
5 is formed. The pleats 25 have a substantially annular shape and are arranged concentrically so that the circumference thereof gradually increases from the central portion 5c toward the outer peripheral edge portion 5a.

In the article 1C, the pleats 25 formed on the cover sheet 5 and the interior sheet 7 are stretched,
Article 1 in which the covering sheet 5 and the interior sheet 7 are indicated by an arrow Z1
It extends downward in the thickness direction of C. In the article 1C, as shown by the chain double-dashed lines in FIGS. 11 and 12, the covering sheet 5 and the interior sheet 7 extend downward in the thickness direction to form a space in the excrement container 17, so that the excrement container is accommodated. The excrement accommodating volume in the portion 17 can be increased, and a large amount of loose feces can be accommodated in the excrement accommodating portion 17.

In the article 1C, the moisture of the soft stool (not shown) stored in the waste container 17 is absorbed by the interior sheets 7 and 23, and only the solid content contained in the soft stool remains on the interior sheet 7. In the article 1C, moisture and solids contained in loose stools are separated by the interior sheets 7 and 23, and only solid stools showing no fluidity remain on the interior sheet 7, so that the soft stools maintain high fluidity. Excrete container 17 as it is
Will never survive. In the article 1C, the solid content has pores 1
3 does not leak out and solids do not flow on the outer surface of the surface sheet 2, so that loose stools can be prevented from adhering to the wearer's skin. In the article 1C, since the free side portion 22b of the leak-proof sheet 22 forms a barrier against excrement, the excrement can be prevented from leaking from the crotch region 9.

13 and 14 are a partially cutaway perspective view of a worn article 1D shown as another example and a partially cutaway perspective view of the article 1D of FIG. 13 shown from the back sheet 3 side.
Reference numerals 5 and 16 are a sectional view taken along the line GG of FIG. 13 and a sectional view taken along the line HH of FIG. 13. 13 and 14, the horizontal direction is indicated by arrow X, the vertical direction is indicated by arrow Y, and the thickness direction is indicated by arrow Z.
Indicate.

The article 1D comprises a dressing sheet 4 consisting of a liquid-permeable topsheet 2 and a liquid-impermeable backsheet 3, and a liquid-impermeable cover sheet 5 arranged on the outer surface of the backsheet 3. . The article 1D includes water-absorbent interior sheets 7 and 23 attached to the back sheet 3 and the cover sheet 5,
It has a liquid absorbing second core 27 interposed between the covering sheet 5 and the interior sheet 7. In the article 1D, the first core does not exist between the topsheet 2 and the backsheet 3.

An opening 13 is formed in the wearing sheet 4 so as to penetrate the top sheet 2 and the back sheet 3 in the thickness direction. The wearing seat 4 is provided with a pair of leak-proof sheets 22 located in the side flaps 11 and extending in the longitudinal direction from the crotch region 9 toward the front and rear waist regions 8, 10. The covering sheet 5 has the outer peripheral edge portion 5 a fixed to the outer surface of the back sheet 3 while covering the entire area of the opening 13. A waste container 17 is formed between the wearing sheet 4 and the covering sheet 5 and connected to the opening 13. Second core 27
Is arranged in the remaining portion 5b of the cover sheet 5 and is fixed to at least one of the cover sheet 5 and the interior sheet 7.

The interior sheet 7 has a covering sheet 5 on the outer surface thereof.
Is intermittently fixed to the inner surface of the remaining portion 5b via an adhesive (not shown). The inner sheet 23 is intermittently fixed to the outer surface of the back sheet 3 whose inner surface extends between the peripheral edge 14 of the opening 13 and the outer peripheral edge portion 5a of the cover sheet 5 with an adhesive (not shown). There is. The same fibrous nonwoven fabric as that of FIG. 1 is used for the interior sheets 7 and 23.
The water absorption of the interior sheets 7 and 23 according to JIS P8141 Klemm method is the same as that of the interior sheet 7 of FIG.

The cover sheet 5 and the interior sheet 7 attached thereto have a large number of second pleats 2 extending in the longitudinal direction.
6 is formed. The pleats 26 are made by folding the covering sheet 5 and the interior sheet 7 inward in the lateral direction of the article 1D.

In the article 1D, the pleats 26 formed on the cover sheet 5 and the interior sheet 7 are stretched,
Article 1 in which the covering sheet 5 and the interior sheet 6 are indicated by an arrow Z1
It extends downward in the thickness direction of D. In the article 1D, as shown by the chain double-dashed lines in FIGS. 15 and 16, the covering sheet 5 and the interior sheet 7 extend downward in the thickness direction to form a space in the excrement container 17, so that the excrement container is accommodated. The excrement accommodating volume in the portion 17 can be increased, and a large amount of loose feces can be accommodated in the excrement accommodating portion 17. In the article 1D, by forming the pleats 26 on the interior sheet 7, the interior sheet 7 having a large surface area can be arranged in the excrement container 17, and the excrement container 17 can have a high water absorbing function.

In the article 1D, moisture contained in loose stool (not shown) stored in the waste container 17 is absorbed by the inner sheets 7 and 23 and the second core 27, and the solid stool contained on the inner sheet 7 is contained in the loose stool. Only the minutes remain. In the article 1D, the interior sheet 7,
23 and the second core 27 separate water and solids contained in loose stools, and only solids of loose stools that do not show fluidity remain on the interior sheet 7, so that loose stools maintain high fluidity. In the state, it does not remain in the waste container 17. In the article 1D, the solid content does not leak from the opening 13 and the solid content does not flow on the outer surface of the topsheet 2, so that loose stool can be prevented from adhering to the wearer's skin. .

In the article 1D, since the moisture contained in loose stool can be absorbed not only by the interior sheets 7 and 23 but also by the second core 27, the moisture and solids contained in the loose stool in the excrement container 17 can be absorbed. Can be reliably separated.
In the article 1D, since the free side portion 22b of the leak-proof sheet 22 forms a barrier against excrement, the excrement can be prevented from leaking from the crotch region 9.

17 and 18 are a partially cutaway perspective view of a worn article 1E shown as another example and a partially cutaway perspective view of the article 1E of FIG. 17 shown from the back sheet 3 side.
Reference numerals 9 and 20 are a sectional view taken along the line I-I of FIG. 17 and a sectional view taken along the line J-J of FIG. 17, respectively. 17 and 18, the horizontal direction is indicated by arrow X, the vertical direction is indicated by arrow Y, and the thickness direction is indicated by arrow Z.
Indicate.

The article 1E comprises a dressing sheet 4 composed of a liquid-permeable top sheet 2 and a liquid-impermeable back sheet 3, and a liquid-impermeable cover sheet 5 arranged on the outer surface of the back sheet 3. . The article 1E includes water-absorbent interior sheets 7 and 23 attached to the back sheet 3 and the cover sheet 5,
It has a liquid absorbing third core 28 interposed between the wearing sheet 4 and the interior sheet 7. In the article 1E, the first core does not exist between the topsheet 2 and the backsheet 3, and the side flap 11 is not attached with the leak-proof sheet.

An opening 13 is formed in the wearing sheet 4 so as to penetrate the top sheet 2 and the back sheet 3 in the thickness direction. The covering sheet 5 covers the entire area of the opening 13,
The outer peripheral edge portion 5a is fixed to the outer surface of the backsheet 3. An opening 13 is formed between the dressing sheet 4 and the covering sheet 5.
An excrement container 17 is formed to connect to the. The third core 28 is arranged between the peripheral edge 14 of the opening 13 and the outer peripheral edge portion 5b of the covering sheet 5, and extends in the vertical direction on both sides of the opening 13 in parallel with each other. The third core 28 is intermittently fixed to the interior seat 7.

The interior sheet 7 has a covering sheet 5 on the outer surface thereof.
Is intermittently fixed to the inner surface of the remaining portion 5b via an adhesive (not shown). The inner sheet 23 is intermittently fixed to the outer surface of the back sheet 3 extending between the peripheral edge 14 of the opening 13 and the outer peripheral edge portion 5a of the cover sheet 5 via an adhesive (not shown). The same fibrous nonwoven fabric as that of FIG. 1 is used for the interior sheets 7 and 23. The water absorption of the interior sheets 7 and 23 according to JIS P8141 Klemm method is the same as that of the interior sheet 7 of FIG.

In the article 1E, moisture contained in loose stool (not shown) stored in the waste container 17 is absorbed by the interior sheets 7 and 23 and the third core 28, and the solid stool contained on the interior sheet 7 is contained in the loose stool. Only the minutes remain. In the article 1E, the interior sheet 7,
Water and solids contained in loose stools are separated by 23 and the third core 28, and only solids of loose stools that do not show fluidity remain on the interior sheet 7, so that the soft stools maintain high fluidity. In the state, it does not remain in the waste container 17. In the article 1E, the solid content does not leak from the opening 13 and the solid content does not flow on the outer surface of the topsheet 2, so that loose stool can be prevented from adhering to the skin of the wearer. .

In the article 1E, since the moisture contained in loose stool can be absorbed not only by the interior sheets 7 and 23 but also by the third core 28, the moisture and solids contained in the loose stool in the excrement container 17 can be absorbed. Can be reliably separated.

The illustrated articles 1A, 1B, 1C, 1
In D and 1E, the size and the shape of the opening 13 are not particularly limited, and the opening 13 is not limited to the crotch region 9 and the crotch region 9
It is also possible to reach the front and rear waist regions 8, 10. Further, in the illustrated articles 1A, 1B, 1C, 1D, 1E, two or more openings 13 may be formed. Opening 1
In the case of an article having two or more three, it is necessary that the entire area of the openings 13 is covered with the covering sheet 5. In the illustrated articles 1A, 1B, 1C, 1D, 1E, the size of the covering sheet 5 is not particularly limited, and the covering sheet 5
May have substantially the same shape and size as the mounting sheet 4.

The illustrated articles 1A, 1B, 1C, 1
In D and 1E, the outer peripheral edge portion 5a of the covering sheet 5 may be detachably fixed to the outer surface of the back sheet 3, and
The outer peripheral edge portion 5 a of the covering sheet 5 may be detachably attached to the outer surface of the back sheet 3.

Articles 1A, 1 shown in FIGS. 1, 9, 13, and 17
In C, 1D, and 1E, two or more interior sheets 7 and 23 may be attached to the residual portion 5b of the cover sheet 5 and the back sheet 3, and in the article 1B shown in FIG. Three or more interior sheets 7 and 23 may be attached to the portion 5b and the back sheet 3. In the article 1D shown in FIG. 13, a large number of second pleats 26 extending in the lateral direction may be formed by folding the covering sheet 5 and the interior sheet 7 inward in the longitudinal direction of the article 1D.

For the surface sheet 2, any one of a hydrophilic fibrous nonwoven fabric, a hydrophobic fibrous nonwoven fabric having a large number of openings and a liquid-permeable plastic film having a large number of fine openings can be used. The back sheet 3, the cover sheet 5, and the leak-proof sheet 22 include a hydrophobic fibrous nonwoven fabric, a breathable liquid-impermeable plastic film, a composite nonwoven fabric obtained by stacking hydrophobic fibrous nonwoven fabrics, a hydrophobic fibrous nonwoven fabric and a breathable liquid-impermeable plastic. Any of the composite sheets laminated with the film can be used.

The back sheet 3, the cover sheet 5, and the leak-proof sheet 22 are composites in which a fibrous nonwoven fabric having a high water resistance and made by a melt blown method is sandwiched between spunbonding fibrous nonwoven fabrics having high strength and good flexibility. Nonwoven fabrics can also be used.

As the non-woven fabric, those produced by spun lace, needle punch, melt blown, thermal bond, spun pond, chemical bond and air through processes 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 first to third cores 6, 27, 28 are a mixture of fluff pulp and superabsorbent polymer particles, or
It is a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic resin fibers, which is compressed to the required thickness. It is preferable that the cores 6, 27, 28 are entirely covered with a liquid-permeable sheet such as tissue paper or hydrophilic fibrous nonwoven fabric in order to prevent the cores from losing their shape and the polymer particles from falling off. As the polymer particles, starch-based, cellulose-based, and synthetic polymer-based particles can be used.

Sheets 2, 3, 5, 7, 22, 23 are fixed to each other, and cores 6, 2 are attached to sheets 2, 3, 7, 23.
For fixing 7 and 28 and fixing the elastic members 15, 16 and 24 to the sheets 2, 3 and 22, a hot melt type adhesive,
Alternatively, heat welding means such as heat sealing or sonic sealing can be used.

In addition to the open type wearing article for connecting the front and rear waist regions when worn, the present invention is pants in which side flaps in the front and rear waist regions are previously connected to form a waist opening and leg openings. It can also be applied to a type of worn article.

[0064]

According to the disposable wearing article of the present invention, after excreted loose stool passes through the opening and is accommodated in the excrement container, the moisture contained in the loose stool is absorbed by the interior sheet, so that the interior is covered. Only the solid content contained in loose stool remains on the sheet,
The fluidity of loose feces contained in the excrement container is lower than that when excreted. In this article, the moisture and solids contained in loose stool are separated by the interior sheet, and only the solids of loose stool that does not show fluidity remain on the interior sheet, so that the loose stool maintains high fluidity. It does not remain in the waste container. In this article, even if the wearer's body pressure is applied to it, solid matter that does not show fluidity does not leak from the openings, and solid matter does not flow on the outer surface of the surface sheet, so loose stools are not generated. It can be prevented from adhering to the wearer's skin.

In a wearing article in which a large number of first pleats extending in a regression line are formed on the cover sheet and the interior sheet attached thereto, since the interior sheet separates water and solids contained in loose stool, Not only does loose stool remain in the excrement container while maintaining high fluidity, the first pleats are extended so that the covering sheet and the interior sheet are directed downward in the thickness direction of the article. Since it expands and a space is formed in the excrement container, the excrement accommodating volume in the excrement container can be increased, and a large amount of loose feces can be accommodated in the excrement container.

In an article in which a large number of second pleats extending in one of the longitudinal direction and the lateral direction are formed on the cover sheet and the interior sheet attached to the cover sheet, moisture contained in loose stool by the interior sheet Since it is separated from the solid content, it goes without saying that loose stool does not remain in the excrement container while maintaining high fluidity.
By extending the second pleat, the covering sheet and the interior sheet extend downward in the thickness direction of the article, and a space is formed in the excrement container, so that the excrement accommodating volume in the excrement container is increased. Therefore, a large amount of loose feces can be stored in the excrement storage unit. In this article,
By forming the second pleat on the interior sheet, the interior sheet having a large surface area can be arranged in the excrement container, and the water absorption function in the excrement container can be enhanced.

In the wearing article in which the liquid-absorbent second core is interposed between the cover sheet and the interior sheet attached thereto,
Since the water contained in loose stool can be absorbed not only by the interior sheet but also by the second core, the water contained in the loose stool and the solid content can be reliably separated in the waste storing part, and the waste storing part. It is possible to further reduce the fluidity of loose stool contained in the.

In a wearing article in which the liquid-absorbent third core is interposed between the wearing sheet and the interior sheet attached to it,
Since the water contained in loose stool can be absorbed not only by the interior sheet but also by the third core, the water contained in the loose stool and the solid content can be reliably separated in the waste storing part, and the waste storing part. It is possible to further reduce the fluidity of loose stool contained in the.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a worn article shown as an example.

FIG. 2 is a partially cutaway perspective view of the article of FIG. 1 viewed from the back sheet side.

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

FIG. 4 is a sectional view taken along the line BB of FIG.

FIG. 5 is a partially cutaway perspective view of a wearing article shown as another example.

FIG. 6 is a partially cutaway perspective view of the article of FIG. 5 shown from the back sheet side.

7 is a cross-sectional view taken along the line CC of FIG.

8 is a sectional view taken along the line DD of FIG.

FIG. 9 is a partially cutaway perspective view of a worn article as another example.

FIG. 10 is a perspective view of the article of FIG. 9 viewed from the back sheet side.

11 is a cross-sectional view taken along the line EE of FIG.

12 is a sectional view taken along the line FF of FIG.

FIG. 13 is a partially cutaway perspective view of a wearing article shown as another example.

FIG. 14 is a partially cutaway perspective view of the article of FIG. 13 shown from the back sheet side.

FIG. 15 is a sectional view taken along the line GG in FIG.

16 is a sectional view taken along line HH of FIG.

FIG. 17 is a partially cutaway perspective view of a wearing article shown as another example.

FIG. 18 is a partially cutaway perspective view of the article of FIG. 17 shown from the back sheet side.

19 is a cross-sectional view taken along the line I-I of FIG.

20 is a cross-sectional view taken along the line JJ of FIG.

[Explanation of symbols]

1A disposable wearing articles 1B Disposable worn articles 1C Disposable wear article 1D disposable wearing articles 1E Disposable worn articles 2 Liquid-permeable surface sheet 3 Liquid-impermeable back sheet 4 Dressing sheet 5 Liquid-impervious cover sheet 5a outer peripheral portion 5b Remaining part 5c central part 6 Liquid absorbing first core 7 Water-absorbent interior sheet 8 front waist area 9 inseam 10 Rear waist area 13 holes 14 rim 17 Waste storage 23 Water-absorbent interior sheet 25 First Pleated 26 Second Pleats 27 Liquid absorbing second core 28 Liquid absorbing third core

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A61F 13/494 A41B 13/02 G 13/511 K 13/53 (72) Inventor Tomoko Sugito Mitoyo-gun, Kagawa Prefecture 1531-7 Takahama Wadahama, Toyohama Town Unicharm Co., Ltd. Technical center F-term (reference) 3B029 BA02 BB03 BB07 BB08 BD14 4C098 AA09 CC02 CC07 CC10 CD01 CE06 DD04 DD06 DD10 DD24

Claims (9)

[Claims] 1. A wearing sheet having front and rear waist regions and a crotch region positioned between the waist regions, and having at least one opening penetrating in a thickness direction in at least the crotch region of the waist region, A liquid-impermeable cover sheet that is disposed on the outer surface of the wearing sheet and covers the opening, and the outer peripheral edge portion of the covering sheet that is positioned outward of the peripheral edge of the opening in the circumferential direction is fixed to the wearing sheet. In the disposable wearing article in which the excrement container connected to the opening is formed between the wearing sheet and the cover sheet, at least one sheet disposed in the excrement container to absorb water of excrement The water-absorbent interior sheet according to (4) is attached to the remaining portion of the covering sheet excluding the outer peripheral edge portion, the wearing article. 2. The wearing article according to claim 1, wherein the interior sheet is attached to the wearing sheet extending between the peripheral edge of the opening and the outer peripheral edge of the cover sheet. 3. The fibrous nonwoven fabric made of at least one of a natural cellulosic fiber, a regenerated cellulosic fiber and a synthetic polyolefin fiber subjected to a hydrophilic treatment, as the interior sheet. The wearing article according to Item 2. 4. The water absorption of the interior sheet (JIS P8
141: Klemm method) is 200 mm / 1 minute to 30 mm /
The wearing article according to any one of claims 1 to 3, which is in a range of 1 minute. 5. The cover sheet and the interior sheet attached thereto have a large number of first pleats that undulate in a wavy manner from the central portion of the remaining portion toward the outer peripheral edge portion and extend in a regression line shape. The wearing article according to any one of claims 1 to 4, which is formed. 6. A plurality of second pleats formed by folding the covering sheet and the interior sheet attached to the covering sheet extend in one of a longitudinal direction and a lateral direction. The wearing article according to any one of claims 1 to 4. 7. The dressing sheet is formed of a liquid-permeable top sheet located on the skin contact side and a liquid-impermeable back sheet located on the skin non-contact side, wherein the liquid-absorbent first core is , Interposed between the top sheet and the back sheet, the article,
The wearing article according to any one of claims 1 to 6, which has the opening penetrating the front and back sheets and the first core in a thickness direction thereof. 8. The wearing article according to claim 1, wherein the liquid-absorbent second core is interposed between the cover sheet and the interior sheet attached to the cover sheet. 9. The wearing article according to claim 2, wherein the liquid-absorbent third core is interposed between the wearing sheet and the interior sheet attached to the wearing sheet.