JP3723755B2 - Open disposable diaper - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an open-type disposable diaper that absorbs and holds excrement.
[0002]
[Prior art]
A liquid-absorbent core is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, the front waist region and the back waist region in the longitudinal direction, and a crotch region located between these waist regions An open-type disposable diaper is known which is provided with the above-mentioned and which is worn by connecting the side portions around the front and rear waist. Such diapers are disclosed in JP-A-8-196565 and JP-A-8-317950.
[0003]
The procedure for the caregiver to replace the open diaper soiled with excrement with a new one is as follows. The caregiver removes the dirty diaper from the wearer by releasing the connection between the front and back waist areas, wipes the excrement adhered to the wearer's buttocks and crotch with tissue paper, and then puts the tissue paper inside the diaper. Put it on. The caregiver rolls up the dirty diaper in the vertical direction, and fastens the waistline side of the rear waistline area to the outer surface of the rounded diaper, and throws the diaper into the trash can. The caregiver wears a diaper on the wearer by connecting the waist side portions of the front and back waist area of the new diaper.
[0004]
[Problems to be solved by the invention]
Thus, when exchanging the diaper, it is necessary to separately prepare a tissue paper for wiping off the excrement adhered to the wearer. However, if the tissue paper is not provided in the place where the diaper is changed or if the caregiver does not have the tissue paper, the excrement adhered to the wearer cannot be wiped off.
[0005]
The subject of this invention is providing the open-type disposable diaper which can wipe away the excretion adhering to a wearer, without preparing tissue paper separately at the time of replacement | exchange of a diaper.
[0006]
[Means for Solving the Problems]
The premise of the present invention for solving the above-mentioned problems is that a liquid-absorbent core is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, and the front waist area and the back waist area in the vertical direction. A crotch region located between the waist regions, and having first and second waist sides extending longitudinally through the front and rear waist regions located outside the both side edges of the core, It is an open-type disposable diaper which connects and wears the first waistline side portions of the front and rear waistline region and connects the second waistline side portions of the front and back waistline region.
[0007]
The feature of the present invention based on the above premise is that a substantially liquid-impervious intermediate sheet is interposed between the back sheet and the core, and is capable of wiping excreta. However, the first wiping line comprising a plurality of slits extending in the horizontal direction and extending intermittently in the vertical direction is interposed between the back sheet and the intermediate sheet and extends in the horizontal direction. Formed on the first waistline side of the front waistline area excluding the sheet, the first wiping sheet is located outside the first cut line and fixed to the first waistline side part of the front waistline area A fixed side portion, and a free side portion extending from the fixed side portion toward a second waistline side portion of the front waistline region, and in the diaper, the front waistline is defined by the first cut line. It is possible to separate the side of the first torso from the diaper And pulling the first wiping sheet from between the back sheet and the intermediate sheet by pulling the side part around the first waist part of the front waist part that has been cut out outward in the lateral direction of the diaper. Is that it is possible.
[0008]
As an example of an embodiment of the present invention, at least one second wiping sheet capable of wiping excreta is interposed between the back sheet and the intermediate sheet and extends around the front waist area. A second cut line formed of a plurality of slits extending in a direction and intermittently arranged in the longitudinal direction is formed on a second waist circumference side portion of the front waist area excluding the second wipe sheet, and the second wipe sheet A fixed side portion that is located outside the second cut line and is fixed to a second waistline side portion of the front waistline region, and a first waistline side of the front waistline region from the fixed side portion A free side portion extending toward the portion, and in the diaper, the second waistline side portion of the front waistline region can be separated from the diaper at the second cut line, and is separated. Next to the diaper, the second waistline side of the front waistline area By pulling the direction outwards, it is possible to derive the second wiping sheet from between said intermediate sheet and the backsheet.
[0009]
As another example of the embodiment of the present invention, free side portions of the first and second wiping sheets are interposed between the back sheet and the intermediate sheet in a state of being folded in the lateral direction. Yes.
[0010]
As another example of the embodiment of the present invention, the first and second wiping sheets are either dry tissue paper or liquid-permeable dry fiber nonwoven fabric.
[0011]
As another example of the embodiment of the present invention, the first and second wiping sheets include wet tissue paper containing at least one of water and alcohol, or at least one of water and alcohol. It is one of the liquid-permeable wet fiber nonwoven fabrics to contain.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The details of the open-type disposable diaper according to the present invention will be described with reference to the accompanying drawings.
[0013]
1 and 2 are a partially broken perspective view of a disposable diaper 1A and an end view taken along line AA in FIG. 1, and FIGS. 3 and 4 are end views taken along line BB in FIG. 1 and a plan view of the diaper 1A. Figure. 1 and 4, the horizontal direction is indicated by an arrow X, and the vertical direction is indicated by an arrow Y. In FIG. 4, a part of the first and second wiping sheets 15, 16 is shown pulled out from between the back sheet 3 and the intermediate sheet 14. The inner surfaces of the front and back sheets 2 and 3 and the intermediate sheet 14 are surfaces facing the core 4, and the outer surfaces of the sheets 2, 3 and 14 are surfaces not facing the core 4.
[0014]
The main components of the diaper 1A are a liquid-permeable top sheet 2 located on the skin contact side, a liquid-impervious back sheet 3 located on the skin non-contact side, and the sheets 2 and 3 between them. An interstitial liquid-absorbent core. In addition to these members, the diaper 1 </ b> A has a substantially liquid-impermeable intermediate sheet and a first and a second wipe that can wipe off excrement such as stool and urine adhering to the wearer. Sheet.
[0015]
The diaper 1 </ b> A has a front waistline region 5 and a back waistline region 7 in the vertical direction, and a crotch region 6 positioned between the waistline regions 5 and 7. The diaper 1A includes a waistline end portion 8 extending in the lateral direction in the front and rear waistline regions 5 and 7, first and second waistline side portions 9 and 10 extending in the longitudinal direction in the front and back waistline regions 5 and 7, and an inseam It has a leg periphery side portion 11 extending in the vertical direction in the region 6. In the diaper 1 </ b> A, the leg-surrounding side portion 11 forms an arc toward the inner side in the lateral direction of the diaper 1 </ b> A, and its planar shape substantially exhibits an hourglass shape.
[0016]
A belt-like elastic member 12 for waistline extending in the lateral direction is attached to the waistline end portion 8 in an extended state. A plurality of leg elastic members 13 extending in the vertical direction are attached to the leg periphery side portion 11 in an extended state.
[0017]
The intermediate sheet 14 is interposed between the back sheet 3 and the core 4. The core 4 is fixed to the inner surfaces of the top sheet 2 and the intermediate sheet 14. In the core 4, the entire area of the skin facing surface is covered with the top sheet 2, and the entire area of the non-skin facing surface is covered with the intermediate sheet 14.
[0018]
The first wiping sheet 15 and the second wiping sheet 16 are interposed between the back sheet 3 and the intermediate sheet 14, and extend in the lateral direction around the front waistline region 5. A first cut line 17 extending in the vertical direction is formed on the first waistline side portion 9 of the front waistline region 5. A second cut line 18 extending in the vertical direction is formed on the second waist side portion 10 of the front waist area 5. The cut lines 17 and 18 are formed from a large number of slits that penetrate the top sheet 2 and the back sheet 3 in the thickness direction. The slit has the first and second waistline side portions 9 and 10 arranged intermittently in the vertical direction. These waist circumference side portions 9 and 10 in the front waist circumference region 5 can be separated from the diaper 1 </ b> A by the first and second cut lines 17 and 18.
[0019]
The first wiping sheet 15 is located on the outer side of the first cut line 17 and fixed to the first waistline side portion 9 of the front waistline region 5, and the front waistline region from the fixed side portion 15a. 5 and a free side portion 15 b extending toward the second waistline side portion 10. The second wiping sheet 16 is located outside the second cut line 18 and fixed to the second waistline side portion 10 of the front waistline region 5, and the front waistline region from the fixed side portion 16a. 5 and a free side portion 16 b extending toward the first waistline side portion 9.
[0020]
The free side portions 15 b and 16 b of the wiping sheets 15 and 16 are not fixed to any of the front and back sheets 2 and 3 and the intermediate sheet 14. As the wiping sheets 15 and 16, either dry tissue paper or liquid-permeable dry fiber nonwoven fabric can be used. These wiping sheets can also use either wet tissue paper containing at least one of water and alcohol or liquid permeable wet fiber nonwoven fabric containing at least one of water and alcohol. . As the alcohol, at least one of ethanol and phenoxyethanol can be used.
[0021]
A pair of tape fasteners 19 extending inward in the lateral direction are attached to the first and second waistline side portions 9 and 10 of the rear waistline region 7. A rectangular target tape 20 serving as a fastening region for the tape fastener 19 is attached to the outer surface of the back sheet 3 in the front waistline region 5. Adhesive (not shown) is applied to the free end of the tape fastener 19, and the free end is attached to the first and second waistline side portions 9, 10 of the rear waistline region 7 via the adhesive. It is temporarily attached to the release sheet (not shown) so as to be detachable. The target tape 20 is formed from a plastic film having flexibility.
[0022]
The trunk periphery end portion 8 is formed by end portions 2 a and 3 a of the front and back sheets 2 and 3 extending from the both end edges 4 a of the core 4 outward in the longitudinal direction and an end portion 14 a of the intermediate sheet 14. At the waist end 8, the end 14 a of the intermediate sheet 14 is fixed to the inner surfaces of the ends 2 a and 3 a of the front and back sheets 2 and 3. The waist elastic member 12 is interposed between the end 3 a of the back sheet 3 and the end 14 a of the intermediate sheet 14, and is fixed to the inner surfaces of the ends 3 a and 14 a of the sheets 3 and 14.
[0023]
The first and second waistline side portions 9, 10 and the leg periphery side portion 11 are formed from the side portions 2b, 3b of the front and back sheets 2, 3 extending laterally outward from both side edges 4b of the core 4. Yes. In the first and second waistline side parts 9 and 10 and the leg circumference side part 11, the side part 14b of the intermediate sheet 14 slightly extends laterally outward from both side edges 4b of the core 4, and further from the side part 14b. The side portions 2b and 3b of the front and back sheets 2 and 3 extend outward in the lateral direction. In these side portions 9 and 10, the inner surface of the side portion 14 b of the intermediate sheet 14 is fixed to the inner surface of the side portion 2 b of the topsheet 2 and is not fixed to the side portion 3 b of the backsheet 3.
[0024]
In the first and second waistline side portions 9 and 10, the side portions 2 b and 3 b of the front and back sheets 2 and 3 are fixed to each other outside the first and second cut lines 17 and 18. At the leg periphery side portion 11, the side portions 2b and 3b of the front and back sheets 2 and 3 are fixed to each other. The fixed side portions 15a, 16a of the first and second wiping sheets 15, 16 are interposed between the side portion 2b of the top sheet 2 and the side portion 3b of the back sheet 3, and the first and second cut lines 17, 18 is fixed to the inner surfaces of the side portions 2b and 3b of the sheets 2 and 3 on the outside. The leg-around elastic member 13 is interposed between the side part 2b of the top sheet 2 and the side part 3b of the back sheet 3 and is fixed to the inner surfaces of the side parts 2b and 3b of the sheets 2 and 3.
[0025]
In order to wear the diaper 1A, the free end portion of the tape fastener 19 is peeled off from the release sheet, the free end portion is folded back outward in the lateral direction of the diaper 1A, and then the first waist side side portion of the rear waist region 7 9 is superimposed on the outside of the first waistline side portion 9 of the front waistline region 5, and the second waistline side portion 10 of the back waistline region 7 is overlapped with the second waistline side portion 10 of the front waistline region 5. It overlaps on the outside and the free end of the tape fastener 19 is fixed to the target tape 20 via an adhesive. In the diaper 1A in which the front and rear waist regions 5 and 7 are connected to the waist portions 9 and 10, a waist opening and a pair of leg openings (not shown) are formed below the waist opening.
[0026]
In order to replace the diaper 1 </ b> A soiled with excrement, the first and second waistline side portions 9, 10 are disconnected, and the first waistline side portion 9 of the front waistline region 5 is cut by the first tear line 17. Is separated from the diaper 1 </ b> A, and the second waistline side portion 10 of the front waistline region 5 is separated from the diaper 1 </ b> A by the second cut line 18. In the diaper 1 </ b> A, as shown in FIG. 4, the first and second wiping sheets 15, 16 are drawn by pulling the waist side parts 9, 10 of the separated front waist region 5 outward in the lateral direction of the diaper 1 </ b> A. Can be pulled out from between the back sheet 3 and the intermediate sheet 14.
[0027]
The caregiver uses these wiping sheets 15 and 16 to wipe off the excrement adhering to the wearer's buttocks and crotch, and then diapers the wiping sheets 15 and 16 together with the torso sides 9 and 10 separated. Place on the inside of 1A. The caregiver rolls the diaper 1A vertically from the front waistline region 5 toward the back waistline region 7, and fastens the free end of the tape fastener 19 to the outer surface of the back sheet 3 of the rolled diaper 1A. Throw diaper 1A into the trash can. The assistant connects the first waistline side portions of the front and rear waist regions of the new diaper and connects the second waist side portions of the front and back waist regions to attach the diaper to the wearer.
[0028]
In the diaper 1A, the first and second wiping sheets 15 and 16 capable of wiping excrement are interposed between the back sheet 3 and the intermediate sheet 14, so that tissue for wiping excrement adhering to the wearer is wiped out. There is no need to prepare paper separately. In the diaper 1 </ b> A, excrement adhered to the wearer can be wiped off even if no tissue paper is provided at a place where the diaper 1 </ b> A is exchanged or the assistant does not have the tissue paper. Further, in the diaper 1A, by wiping the wiping sheets 15 and 16 between the back sheet 3 and the intermediate sheet 14, the wiping sheets 15 and 16 are inadvertently dropped from the diaper 1A during wearing. Can be prevented.
[0029]
In the diaper 1A, the skin non-opposing surface of the core 4 is covered with the liquid-impermeable intermediate sheet 14, so that excrement absorbed by the core 4 permeates the intermediate sheet 14 and adheres to the wiping sheets 15 and 16. The hygienic state of these wiping sheets 15 and 16 can be maintained. In the diaper 1A, even if the wiping sheets 15 and 16 are either wet tissue paper or liquid permeable wet fiber nonwoven fabric, the intermediate sheet 14 is interposed between the core 4 and the wiping sheets 15 and 16. Therefore, water and alcohol contained in the wiping sheets 15 and 16 are not absorbed by the core 4.
[0030]
5 and 6 are a partially broken perspective view of a disposable diaper 1B showing another embodiment and an end view taken along the line CC of FIG. In FIG. 5, the horizontal direction is indicated by an arrow X, and the vertical direction is indicated by an arrow Y. The diaper 1B of FIG. 5 is different from that of FIG. 1 as follows.
[0031]
In the diaper 1B, the free side portions 15b and 16b of the first and second wiping sheets 15 and 16 are respectively interposed between the back sheet 3 and the intermediate sheet 14 in a state of being folded in the lateral direction. . In the diaper 1B, the first and second waistline side portions 9 and 10 of the front waistline region 5 are separated from the diaper 1B by the first and second cut lines 17 and 18, and the separated waistline side portions 9 and 10 are separated. By pulling the diaper 1 </ b> B outward in the lateral direction, the wiping sheets 15 and 16 can be pulled out from between the back sheet 3 and the intermediate sheet 14. The procedure for exchanging the diaper 1B soiled with excrement is the same as that in FIG.
[0032]
In this diaper 1B, since the first and second wiping sheets 15 and 16 are folded in the lateral direction, the lateral length of the wiping sheets 15 and 16 can be made longer than those in FIG. A large amount of excrement can be wiped off by the wiping sheets 15 and 16. In the diaper 1B, since the first and second wiping sheets 15 and 16 are interposed between the back sheet 3 and the intermediate sheet 14 as in FIG. 1, tissue paper for wiping excrement adhered to the wearer. There is no need to prepare separately.
[0033]
In the illustrated diapers 1 </ b> A and 1 </ b> B, the second wiping sheet 16 is not necessarily required, and only the first wiping sheet 15 may be interposed between the back sheet 3 and the intermediate sheet 14. In this case, only the first cut line 17 is formed on the first waistline side portion 9 of the front waistline region 5. In the diaper 1 </ b> A of FIG. 1, two or more first and second wiping sheets 15, 16 may be interposed between the back sheet 3 and the intermediate sheet 14 in a state where they overlap each other. In this case, the fixed side portions 15a and 16a of the two or more wiping sheets 15 and 16 are fixed to the first and second waistline side portions 9 and 10 of the front waistline region 5 in a state where they overlap each other.
[0034]
As the top sheet 2, any of a hydrophilic fiber nonwoven fabric, a hydrophobic fiber nonwoven fabric having a large number of apertures, and a plastic film having a large number of fine apertures can be used. On the back sheet 3 and the intermediate sheet 14, a hydrophobic fiber nonwoven fabric, a gas-permeable liquid-impervious plastic film, a composite nonwoven fabric in which a hydrophobic fiber nonwoven fabric is laminated, a hydrophobic fiber nonwoven fabric and a gas-permeable liquid-impervious plastic film. Any of the overlaid composite sheets can be used.
[0035]
For the back sheet 3 and the intermediate sheet 14, it is also possible to use a composite nonwoven fabric in which a fiber nonwoven fabric by a melt blown method having high water resistance is sandwiched between fiber nonwoven fabrics by a spunbond method having high strength and high flexibility. . When the wiping sheets 15 and 16 are liquid-permeable fiber nonwoven fabrics, hydrophilic fiber nonwoven fabrics can be used as the fiber nonwoven fabrics.
[0036]
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.
[0037]
The core 4 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 4 is preferably entirely covered with a liquid-permeable sheet in order to prevent its shape loss and dropping of the polymer particles. As the polymer particles, starch-based, cellulose-based or synthetic polymer-based particles can be used.
[0038]
For fixing the front and back sheets 2 and 3, the intermediate sheet 14, the wiping sheets 15 and 16, the core 4, and the elastic members 12 and 13, a hot melt adhesive, heat seal or sonic A heat welding means such as a seal can be used.
[0039]
【The invention's effect】
According to the open-type disposable diaper according to the present invention, since at least one wiping sheet capable of wiping excrement is interposed between the back sheet and the intermediate sheet, the excrement adhering to the wearer is wiped off. There is no need to prepare a separate tissue paper. In this diaper, excrement adhered to the wearer can be wiped off even if no tissue paper is provided at the place where the diaper is exchanged or the assistant does not have the tissue paper.
[0040]
In the diaper that is interposed between the back sheet and the intermediate sheet with the free side of the wipe sheet folded in the horizontal direction, the width dimension of the wipe sheet in the horizontal direction is compared to the case where the wipe sheet is not folded. And a large amount of excrement can be wiped off with the wiping sheet.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view of a disposable diaper.
FIG. 2 is an end view taken along line AA in FIG.
FIG. 3 is an end view taken along line BB in FIG.
FIG. 4 is a plan view of a diaper.
FIG. 5 is a partially cutaway perspective view of a disposable diaper showing another embodiment.
6 is an end view taken along the line CC of FIG. 5;
[Explanation of symbols]
1A, 1B Open-type disposable diaper 2 Liquid-permeable surface sheet 3 Liquid-impermeable back sheet 4 Liquid-absorbent core 4b Both side edges 5 Front waist area 6 Inseam area 7 Rear waist area 9 First waist area side 10 Second waistline side portion 14 Intermediate sheet 15 First wiping sheet 15a Fixed side portion 15b Free side portion 16 Second wiping sheet 16a Fixed side portion 16b Free side portion 17 First cut line 18 Second cut line

Claims (5)

A liquid-absorbent core is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, the front waist region and the back waist region in the longitudinal direction, and a crotch region located between these waist regions The first and second waistline sides of the front and rear waistline region, the first and second waistline side portions extending in the longitudinal direction in the longitudinal direction around the front and rear waistline region. In an open-type disposable diaper that connects and wears the second waistline side portions of the front and rear waistline region,
A substantially liquid-impermeable intermediate sheet is interposed between the back sheet and the core, and at least one first wiping sheet capable of wiping excrement is the back sheet and the intermediate sheet. A first cut line made up of a plurality of slits extending in the horizontal direction and extending intermittently in the vertical direction is interposed between the front waist area and the front waist area except for the first wipe sheet. Formed on the side of the first torso,
A first wiping sheet positioned outside the first cut line and fixed to a first waistline side portion of the front waistline region; a first side of the front waistline region from the fixed side portion; 2 having a free side part extending toward the side part around the trunk,
In the diaper, the first waistline side portion of the front waistline region can be separated from the diaper at the first cut line, and the separated first waistline side portion of the front waistline region is separated from the diaper. The diaper characterized in that the first wiping sheet can be pulled out from between the back sheet and the intermediate sheet by pulling outward in the lateral direction of the diaper. At least one second wiping sheet capable of wiping excrement is interposed between the back sheet and the intermediate sheet, extends laterally around the front waist region, and intermittently extends in the vertical direction. A second cut line composed of a large number of slits lined up is formed on the second waistline side portion of the front waistline area excluding the second wipe sheet,
A second wiping sheet positioned outside the second cut line and fixed to a second waistline side portion of the front waistline region; a second side of the front waistline region from the fixed side portion; 1 having a free side extending toward the side of the body,
In the diaper, the second waistline side portion of the front waistline region can be separated from the diaper at the second cut line, and the separated second waistline side portion of the front waistline region is separated from the diaper. The diaper according to claim 1, wherein the second wiping sheet can be pulled out from between the back sheet and the intermediate sheet by pulling outward in the lateral direction of the diaper. The diaper according to claim 2, wherein free side portions of the first and second wiping sheets are interposed between the back sheet and the intermediate sheet in a state of being folded in the lateral direction. The diaper according to claim 2 or 3, wherein the first and second wiping sheets are either dry tissue paper or liquid-permeable dry fiber nonwoven fabric. The first and second wiping sheets are either a wet tissue paper containing at least one of water and alcohol, or a liquid-permeable wet fiber nonwoven fabric containing at least one of water and alcohol. The diaper according to claim 2 or claim 3.

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