JPH1057413A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a pissibility of damaging the skin of a wearing person by an erroneous operation of a fitting person and to improve fitting operability and a shape holdability at the time of fitting. SOLUTION: In this diaper of an unfolding type provided with a liquid transmissive top sheet 2, a liquid non-transmissive back sheet 3 and a liquid holding absorbent 4 interposed between both sheets for which a pair of waist part holding members 10 are disposed to both left and right sides of one of an abdominal side part A and a back side part B, at least one waist part holding member 10 is provided with a fixing part 11 for re-fixably fixing the waist holding member 10 on the side of the back sheet 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deployable disposable diaper having a waist holding member,
The present invention relates to a disposable diaper which has no risk of damaging a wearer's skin due to an incorrect operation of the wearer, and has excellent wearing operability and shape retention during wearing.

[0002]

2. Description of the Related Art Conventionally, there has been provided a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retaining absorber interposed between the two sheets. 2. Description of the Related Art A deployable disposable diaper having a pair of waist holding members disposed on both left and right sides of at least one of an abdominal part and a dorsal part is widely used.

As a specific example of such a disposable diaper, there is a disposable diaper shown in FIG. A conventional disposable diaper 101 shown in FIG. 4 includes a liquid-permeable top sheet 102, a liquid-impermeable back sheet 103,
A liquid holding absorbent 104 is interposed between the two sheets, and a pair of waist holding members 110, 110 'are arranged on both left and right sides of the back side B'. Further, the waist holding members 110 and 110 ′ are provided at the tip end of one of them 110 and on the top sheet 102 side.
A fastening member 111 made of a convex member of a mechanical fastener for fastening 0 'is disposed, and a diaper made of a convex member of the mechanical fastener is provided on the top sheet 102 side on both left and right side edges of the abdominal part A'. Diaper fastening member 120 for fastening
Is arranged. The disposable diaper is configured such that the fastening member 111 provided at the distal end of one of the waist holding members 110 is replaced with the other waist holding member 11.
0 ′, the waist holding member 11
The diaper fastening is performed by fastening the diaper fastening member 120 to the backsheet side of the fastened lower back holding members 110, 110 '. I was wearing it.

However, in such a conventional disposable diaper, when the waist holding members 110 and 110 'are fixed, the fastening member 111 is disposed on the top sheet 102 side, so that the diaper may be erroneously operated by the wearer. There is a problem that the fastening member 111 may be applied to the wearer's skin and may damage the wearer's skin. In addition, since the fastening member 111 is provided only on the top sheet side of one of the waist holding members 110 and 110 ′ (provided on both, the fastening member that is not fastened may damage the wearer's skin. There is also a problem that the mounting operability is inferior. Also, since the diaper fastening members 120 are provided only on both side edges of the diaper, the waist holding member 11
There was also a problem that the fixation was not performed on 0, 110 ', that is, at the center of the wearer's body, and the shape retention during wearing was insufficient. In this specification, “wearer” means a person who performs a wearing operation, for example, a mother or a caregiver, and “wearer” means a person who wears and uses a diaper, for example, an infant, an elderly person, or the like. Means Also, the “wearer” and the “wearer” may be the same person.

[0005] Accordingly, an object of the present invention is to provide a disposable diaper which is excellent in wearing operability and shape retention during wearing without fear of damaging the wearer's skin due to erroneous operation of the wearing person.

[0006]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, a disposable diaper having a waist holding member having a fastening portion provided on the back sheet side has been developed. It was found that it could be achieved.

The present invention has been made based on the above findings, and comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retentive absorber interposed between the two sheets. In a deployable disposable diaper in which a pair of waist holding members are arranged on the left and right sides of either the abdominal part or the back part, at least one of the waist holding members is provided on the back sheet side. Another object of the present invention is to provide a disposable diaper provided with a fastening portion for fastening the waist holding members to each other so that they can be refastened to each other.

Further, in the present invention, the fastening portion is disposed on both of the pair of waist holding members, and is re-attached to a top sheet opposite to the side on which the waist holding member is provided. It is intended to provide the disposable diaper which is adapted to be fastened so as to be fastened. Further, the present invention provides the disposable diaper, wherein the fastening portion is provided over substantially the entire longitudinal direction of the waist holding member. Further, according to the present invention, on the left and right side edges opposite to the side on which the waist holding member is provided, there is provided a fastening assisting member which is re-fastened to the waist holding member or the back sheet. The above-mentioned disposable diapers are provided. Further, the present invention provides the disposable diaper, wherein at least one of the pair of waist holding members has elasticity. Further, the present invention provides the disposable diaper, wherein at least a part of the waist on the abdomen or the waist on the back has elasticity.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the disposable diaper of the present invention will be described below in detail with reference to the drawings. Here, FIG. 1 is a perspective view showing one mode of the disposable diaper of the present invention, FIG. 2 is a perspective view showing a mode of mounting the disposable diaper of the mode shown in FIG. 1, and FIG. It is a perspective view which shows the disposable diaper which assembled.

A disposable diaper 1 of the type shown in FIG. 1 includes a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and a liquid-retentive absorber 4 interposed between the two sheets. This is a deployable disposable diaper in which a pair of waist holding members 10 are arranged on both left and right side edges B1 and B2 of the back side B.

More specifically, in the disposable diaper 1 of the present embodiment, as shown in FIG. 1, the absorber 4 is formed in an hourglass shape with a narrowed crotch region, and the top sheet 2 and the back sheet 3 are also absorbed. The crotch region is curved in accordance with the shape of the body 4 as described above, and the absorber 4 is sandwiched and fixed between the top sheet 2 and the back sheet 3.
A three-dimensional guard 8 having a free end 8b on the inner side of the diaper is formed on the topsheet 2 and is formed by fixing the leak-proof sheet 8a on the outer side of the diaper. Also,
The waist portion 5 and the leg portion 6 at the peripheral portion of the absorber 4 have a waist elastic member 7a, a leg for fitting the waist portion 5 and the leg portion 6 to a wearer when the diaper is worn. The elastic part 7 b is provided so as to be sandwiched and fixed between the top sheet 2 and the back sheet 3. That is, a part (central part) of the waist part 5 on the abdomen side and the back side is made to have elasticity. The free end 8b is provided with a three-dimensional guard elastic elastic member 7c. Such a configuration is the same as a conventional deployable disposable diaper.

Next, a description will be given of a material for forming each member constituting the disposable diaper 1. Top sheet 2 above
As the liquid-permeable sheet that allows excrement to permeate the absorber, a material having a feeling similar to underwear is preferable, and such a liquid-permeable sheet is preferably, for example, a woven fabric, a nonwoven fabric, or a porous film. No. In addition, a method of applying a hydrophobic compound such as a silicon-based oil agent or paraffin wax to the periphery of the top sheet 2 or a method of applying a hydrophilic compound such as an alkyl phosphate ester on the entire surface in advance and washing the periphery with warm water is used. By applying a water repellent treatment, it is possible to prevent leakage due to bleeding of urine and the like on the periphery. In this embodiment, a nonwoven fabric is used as described later.

The back sheet 3 may be a liquid impermeable and vapor permeable film sheet obtained by adding a filler to a thermoplastic resin, a fiber assembly such as a nonwoven fabric, or the like.
Alternatively, a laminated sheet or the like thereof is used. In the present embodiment, a nonwoven fabric that can be engaged with a convex member described later or a laminated sheet having such a nonwoven fabric positioned on the surface is used.

The absorbent 4 is preferably a combination of a high-molecular-weight water-absorbing polymer mainly composed of defibrated pulp. The high-molecular-weight water-absorbing polymer may be present in any of the upper layer, the middle layer, and the lower layer of the absorber, or may be mixed with pulp. Further, the high molecular water-absorbing polymer has a holding performance of absorbing and holding a liquid 20 times or more its own weight, and is preferably in the form of particles having a gelling property. For example, starch-acrylic acid (salt) graft copolymer,
Saponified starch-acrylonitrile copolymer, crosslinked sodium carboxymethylcellulose, acrylic acid (salt) polymer and the like are preferred.

As the leak-proof sheet 8a for forming the three-dimensional guard 8, any known one can be used without any particular limitation, but a hydrophobic nonwoven fabric or a water-repellent nonwoven fabric is preferably used.

The waist elastic member 7a,
As the leg elastic elastic member 7b and the three-dimensional guard elastic elastic member 7c, thread rubber, flat rubber, film-type elastic material or film-like foamed polyurethane are preferable, and the stress at 50% elongation is 40 to 40%. 150
Grams are preferred.

In the disposable diaper 1 of this embodiment, as shown in FIG. 1, both the left and right waist holding members 10 are provided on the back sheet 3 side.
Is provided with a fastening portion 11 for refastening to each other.

More specifically, the fastening portions 11 are in the shape of a narrow band, and three of the fastening portions 11 are arranged at predetermined intervals in the width direction of each of the waist holding members 10. The waist holding member 1 is arranged such that the longitudinal direction of the fastening portion 11 in the form of a narrow band extends along the longitudinal direction of the waist holding member 10.
0 is arranged over almost the entire area in the longitudinal direction. here,
"Almost the entire area in the longitudinal direction" means that there may be a part that is not arranged in a part of the longitudinal direction, and in the present embodiment, the part that is not arranged in the distal end part and the base end part has .

Here, the fastening portion 11 is formed by a convex member of a hook-and-loop fastener. As the convex member,
"Magic Tape" (registered trademark, manufactured by Kuraray), "Quicklon" (registered trademark, manufactured by YKK), "Majicloth"
(Registered trademark, manufactured by Kanebo Bell Touch Co., Ltd.), or any other known (commercially available) surface fastener convex member such as a sheet provided with a number of convex engaging members such as a key-shaped or mushroom-shaped member is used without any particular limitation. be able to.

The fastening portion 11 is similarly disposed on both of the pair of waist holding members 10, and the side where the waist holding member 10 is provided (ie, the back side portion B). ) Is removably fastened to the top sheet 2 side on the side (that is, the abdominal portion A) opposite to the top sheet 2. That is,
In the present embodiment, the leakproof sheet 8a forming the top sheet 2 and the three-dimensional guard 8 can be engaged with the convex member forming the fastening portion 11 among the preferable forming materials described above. Made of material. As such a material that can be engaged with the convex member, usually,
A nonwoven fabric used as a material for forming a top sheet or a three-dimensional guard and used as a concave material to be engaged with the convex member is used without any particular limitation.

The pair of waist holding members 10 are both formed of elastic members, and have elasticity. For this reason, at the portion where the fastening portion 11 is not provided (the distal end portion and the proximal end portion, particularly the proximal end portion), the waist holding member 10 can be extended and contracted in the longitudinal direction (diaper circumferential direction). . As the elastic member used at this time, a known nonwoven fabric or a film-type elastic material or thread rubber, which is engageable with the convex member forming the fastening portion 11 and has elasticity, may be used. A material in which rubber or the like is sandwiched between nonwoven fabrics is used without any particular limitation.

In the disposable diaper 1 described above,
The left and right side edges of the side (that is, the abdominal side A) opposite to the side on which the waist holding member 10 is provided (that is, the back side B) are again fixed to the waist holding member 10 or the back sheet 3. A fastening auxiliary member 20 that is fastened so as to be attachable is provided. By providing the fastening assisting member 20, the fastening assisting member 20 engages with the waist holding member 10 or the back sheet 3 (in this embodiment, the back sheet 3 is made of a nonwoven fabric), The fastening property of the diaper can be further improved. The fastening assisting member 20 includes a base tape 21 made of a normal non-woven fabric and an auxiliary fastening portion 22 made of the convex member provided at a substantially central portion of the base tape 21. By being provided with 22,
A knob 23 is formed at the tip. The side edge is provided with a protection portion 24 for keeping the auxiliary fastening portion 22 in contact with the diaper during storage. As a material for forming the protective portion 24, in addition to a fiber sheet such as a non-woven fabric, a tricot knitted fabric, for example, a 50-denier front yarn, a 20-denier 18-filament back yarn, and a 1-filament constituent yarn, is knitted at three front needles. 26 gauge /
An inch knit or the like is used.

Next, a mode of use of the disposable diaper according to the present embodiment will be described with reference to FIGS. First, in order to use the disposable diaper 1 of the present embodiment, as shown in FIG. 2, the left and right waist holding members 10 are overlapped, and the fastening portion 11 of one of the waist holding members 10 and the other waist holding member 10
Is engaged with the top sheet 2 side to fasten the waist holding member 10. Next, as shown in FIGS. 2 and 3, the inner surface of the diaper of the abdominal part A (the top sheet 2 and the leak-proof sheet 8) is attached to the exposed fastening portion 11 of the waist holding member 10 located on the upper surface.
a) are brought into contact with each other to engage the fastening portion 11 with the inner surface. Further, the diaper is fastened by bringing the fastening assisting member 20 into contact with and engaging with the waist holding member 10 or the back sheet 3. It is to be noted that such a usage is possible even when the wearer is sleeping or standing.

The disposable diaper according to the present embodiment includes the fastening part 1 described above.
Since 1 is provided on the back sheet 3 side, the fastening portion 11 is erroneously applied to the wearer's skin due to an erroneous operation at the time of mounting, and does not damage the wearer's skin. Excellent operability. In addition, since the fastening portion 11 is provided on the back sheet 3 side, the fastening portion 11 can be provided on both waist holding members 10, so that the mounting operation can be performed from either left or right, The mounting operation can be performed without worrying about the mounting order, and the operability is further improved. Further, since the inner surface of the diaper of the abdomen A is attached to the exposed fastening portion 11 of the waist holding member 10 located on the upper surface, the abdomen A is also fixed at the center of the body of the wearer. It can be worn, and it is easy to wear (retention of shape when worn)
Excellent. Further, since the fastening assisting member 20 is provided, the diaper does not turn up from the side edge of the abdominal part A, and thus the diaper is more excellent in the wearing property (retention of the form when worn).

In the disposable diaper 1 of the present embodiment, the top sheet 2, the absorber 4, and the back sheet 3 are overlapped according to a conventional method, and the leak-proof sheet 8a is disposed at a predetermined position. By forming the waist holding member 10 and the fastening assisting member 20 at predetermined positions after the formation of 8, the manufacturing can be easily performed.

It should be noted that the disposable diaper of the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the spirit of the present invention. For example, the fastening portion 11 may be provided on one of the waist holding members 10. Further, the waist holding member 10 can be provided on the abdomen A instead of the back B. Further, it is not necessary to provide the three fastening portions 11, and the number, size, and the like of the fastening portions 11 are arbitrary. Also,
The waist holding member 10 may be provided with elasticity by providing an elastic part in a part thereof.
Therefore, in this case, it is not necessary to use an elastic member. Further, the fastening portion 11 may be formed by using a normal hot melt adhesive or the like instead of the convex member.

[0027]

According to the disposable diaper of the present invention, there is no danger that the wearer's skin will be damaged due to erroneous operation of the wearer.
It has excellent mounting operability and shape retention during mounting.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one mode of a disposable diaper according to the present invention.

FIG. 2 is a perspective view showing a state in which the disposable diaper having the form shown in FIG. 1 is being mounted.

FIG. 3 is a perspective view showing the assembled disposable diaper.

FIG. 4 is a plan view showing a conventional disposable diaper.

[Description of Signs] 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 5 Waist 6 Leg 7a Waist elastic elastic member 7b Leg elastic elastic member 7c Solid guard elastic elastic member 8 Solid guard 8a Leak-proof sheet 8b Free End 10 waist holding member 11 fastening part 20 fastening aid member 21 base tape 22 auxiliary fastening part 23 knob 24 protection part A belly side B back side

Claims (6)

[Claims] A liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retentive absorber interposed between the two sheets; In a deployable disposable diaper in which a pair of waist holding members are disposed on both left and right sides of at least one of the waist holding members, at least one of the waist holding members can reattach the waist holding members to the back sheet side thereof. A disposable diaper comprising a fastening portion for fastening to a diaper. 2. The fastening portion is provided on both of the pair of waist holding members, and can be re-fastened to a top sheet side opposite to a side on which the waist holding member is provided. The disposable diaper according to claim 1, wherein the diaper is fixed. 3. The disposable diaper according to claim 1, wherein the fastening portion is provided over substantially the entire longitudinal direction of the waist holding member. 4. A fastening auxiliary member which is removably fastened to the waist holding member or the back sheet is provided on both left and right side edges of the side opposite to the side where the waist holding member is provided. The disposable diaper according to any one of claims 1 to 3, wherein: 5. A pair of waist holding members, at least one of which has elasticity.
4. The disposable diaper according to any one of 4. 6. The disposable diaper according to claim 1, wherein at least a part of the waist on the abdomen or the waist on the back has elasticity.