JPH10155834A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable fixation without touching a fastener engaging surface by vertically separating a fixing part by a non-fixing holding area provided with respectively specified peripheral dimension and vertical direction dimension, surrounding the fixing part with a specified dimension peripheral area and specifying the rigidity value of the peripheral area and the holding area. SOLUTION: A sheet 23 for reinforcing is joined to the inner surface of the surface sheet 2 of the side edge part flap 14 of a rear waist area 7 and an upper male member 22A and a lower male member 22B are attached in one line in the vertical direction of the side edge part flap 14 on the inner surface. Both members 22A and 22B are formed into a rectangular shape whose waist direction dimension W is at least 5mm and vertical direction dimension L is 10-30mm. Also, the vertical direction separation dimension D of 10-30mm is provided between both members 22A and 22B and the holding area is formed. Further, it is positioned on the inner side by 2-10mm from the periphery of a sheet piece 23. The rigidity value by a handometer method of the area composed of the peripheral area and the holding area is turned to 1-50g. By this constitution, the fixation is performed by one operation without touching the engaging surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper in which front and rear waist side edges are detachable.

[0002]

2. Description of the Related Art Conventionally, respective side edges of a front waistline region and a rear waistline region are overlapped with each other, and these side edges can be detached by fastening portions (fasteners) formed on the respective side edges. Engaged disposable diapers are known as open-type disposable diapers. For example, in a disposable diaper disclosed in Japanese Utility Model Laid-Open Publication No. 3-107917, one tape fastener is disposed on each of the upper and lower portions of the left and right side edges of the front waist region. In such a diaper, the side edges of the front and rear waist region can be widely engaged in the up-down direction, so that the diaper is more closely adhered to the body than in the case where only the fastener is provided up or down.

[0003]

In order for a caregiver to wear a diaper in which the fasteners are vertically spaced apart from each other as in the above-mentioned known example, the fasteners must be stopped one by one in order. The operation may be cumbersome.

[0004] Therefore, the present invention provides a disposable diaper in which the fastening portions formed vertically apart are simultaneously stopped by a single operation, and the caregivers do not touch their fingers with the engaging surfaces of the fastener. The task is to be able to wear it.

[0005]

In order to solve the above problems, the present invention is based on the premise that a liquid permeable surface sheet is
A liquid-impervious back sheet, and a liquid-absorbent core interposed between these two sheets, and a front waist region, a rear waist region, and a crotch region located between these two regions in the front and rear longitudinal directions. A disposable diaper having side edges of the front and rear waist circumferences overlapped with each other, and fastening portions formed on the side edges of each other are detachably engaged and worn.

[0006] On this premise, the present invention is characterized in that, among the fastening portions, the fastening portion formed on the inner surface of the side edge portion which is outside when overlapped is at least the side edge portion. 10-30m at the part close to the outside
The first periphery having a width of 2 to 10 mm, which is vertically divided by a non-adhesive pinching area having a vertical dimension of m and a waist dimension of at least 5 mm and surrounding the fixing section. The stiffness value of the region consisting of the region and the holding region according to the handle ometer method is 1 to 50 g.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the disposable diaper according to the present invention will be described below with reference to the accompanying drawings.

[0008] The disposable diaper shown in a partially broken perspective view in FIG.
A liquid-impervious back sheet 3 and a liquid-absorbent core 4 interposed between the two sheets 2, 3, a front waist area 6, a rear waist area 7 in the front and rear longitudinal directions, There is a crotch region 8 located between these two regions 6 and 7. The front and back sheets 2 and 3 extend from the peripheral edge of the core 4 and overlap, and are joined to each other to join the edge flaps 11 of the front and rear waist regions 6 and 7.
12, side edge flaps 13 and 14, and leg circumference flap 16 of the crotch region 8 are formed. In the edge flap 12 of the rear waist region 7 and each leg flap 16 of the crotch region 8, the waist elastic member 17 and the leg elastic member 18 are located between the front and back sheets 2 and 3, and at least. It is joined to the inner surface of one of the sheets in an extended state. At the side edge flap 13 of the front waist region 6, a female member 21 of a mechanical fastener known as Velcro or Velcro is attached to the outer surface of the back sheet 3, and is attached to the side edge flap 14 of the rear waist 7. A male member 22 of a mechanical fastener is attached to the inner surface of the device. When the diaper is worn, the rear waist side edge flap 14 is superimposed on the front waist side edge 13 from the direction of arrow Y so that it faces outward, and the male and female members 21 and 22 are engaged.

At the side edge flaps 14 of the rear waist region 7, a reinforcing sheet piece 23 is joined to the inner surface of the topsheet 2, and the inner surface of the sheet piece 23 is vertically aligned with the side edge flaps 14. The upper male member 22A and the lower male member 22B which constitute the male member 22 are attached. The upper and lower male members 22A and 22B are 5 to 50 in the waist direction.
mm extending in the vertical direction and a dimension L extending in the vertical direction by 5 to 50 mm, and has a vertical separation dimension D of 10 to 30 mm, and is 2 mm from the periphery of the sheet piece 23.
〜１０10 mm inside. The portion between the upper and lower male members 22A and 22B defined by the dimensions W and D is a holding area when the side edge flap 14 is held and the male member 22 is fixed to the female member 21. Where the fingertip can be abutted. In the figure, one of the left and right side edge flaps 14 is indicated by phantom lines with three fingers 26, 27, and 28 of caregivers holding the side edge 14 and wearing diapers.

FIG. 2 is an end view taken along the line II-II of FIG. 1. The side edge portion 14 is held by fingers 26, 27, and 28, and the female member 21 is imaginary. Indicated by lines. Assuming that the fingers 26, 27, 28 are, for example, the thumb, the index finger, and the middle finger, the belly of the thumb 26 abuts on the inner surface of the side edge flap 14 between the upper and lower male members 22A and 22B, and the index finger 27 and the middle finger. The upper and lower male members 22A and 22B can be pressed from their rear sides by contacting the belly with the outer surface of the flap 14. When the upper and lower male members 22A and 22B are pressed against the female member 21 in this state, the male members 22A and 22B can be simultaneously engaged with the female member 21. Both male members 22A, 22B
Since it is not necessary to engage them separately, the trouble of wearing the diaper can be saved accordingly.

The sheet piece 23 comprises a female member 21 and a male member 22.
Since the side edge flaps 14 are reinforced so as to withstand repeated engagement and disengagement, and at the same time, the rigidity around the male member 22 is increased, the flaps 14 as shown in FIG. When held, the flap 14 becomes substantially flat in the vertical direction or slightly bent in a dogleg shape, so that the flap 14 can easily contact the female member 21. In general, a soft and soft sheet material is used for the front and back sheets 2 and 3, so that the side edge flaps 14 made of these materials are also flexible.
It is sometimes difficult to pinch it in a flat state as shown in FIG. The sheet pieces 23 help to solve such difficulties. In a preferred embodiment, the sheet piece 23
Are joined to the flap 14 so as to surround the upper and lower male members 22A and 22B in a range of 2 to 10 mm in width and both members 2A and 22B.
The rigidity of the region including the fingertip contact portion formed between 2A and 22B is higher than that of the peripheral region surrounding the region, and lower than that of the region where the upper and lower male members 22A and 22B are located. To do. At that time, the upper and lower male members 2
The rigidity value of the above-mentioned region consisting of the region surrounding the 2A and 22B and the fingertip contact portion by the handle ometer method is 1 to 50 g.
It is preferred that This region of relatively high rigidity is surrounded by a low rigidity peripheral region, so that it does not strongly irritate the wearer's skin. For the sheet piece 23, a sheet material such as a nonwoven fabric, a woven fabric, a plastic film, or paper can be used. The sheet piece 23 can be joined to the outer surface of the back sheet 3 or inserted between the front and back sheets 2 and 3 to be joined to the inner surface of at least one sheet. The measurement of the stiffness value by the handle ometer method is specified in "J. TAPPI Paper and Pulp Test Method" issued by the Japan Institute of Paper and Pulp Technology.

The superimposed front and rear waist region side edges 13,1
For the engagement of 4, an adhesive can be used instead of the mechanical fastener in the illustrated example. For example, the upper and lower male members 22A, 22A
2B and the female member 21
May be replaced with a plastic film piece coated with a release agent. The film piece to which the adhesive is applied is a male member 22
Like A and 22B, it is necessary to select the material and thickness so that the rigidity of the portion can be increased.

FIG. 3 is an enlarged plan view of the diaper side edge portion 14 showing one embodiment of the present invention. In this diaper, the upper and lower male members 22A and 22B are continuous with each other via a middle part 31 constituting a part of the male member 22 near a center line (not shown) that bisects the diaper into right and left. Near the outer edge 14A of the flap 14, the outer edge 31A of the portion 31 curves inwardly by 5 mm or more from any of the outer edges 32A, 32B of the upper and lower male members 22A, 22B as indicated by the dimension line B. I have. At the portion where the curved portion opens toward the side edge 14A, the male members 22A and 22B are separated by 10 to 30 mm as indicated by the dimension A. The inside of the curved portion is a non-adhesive portion where the reinforcing sheet 3 is exposed. The side edge portion 14 can abut the thumb with the portion as a part of the pinching area. When the rigidity of the male member 22 is relatively high, this makes it easier to fasten the male member 22 to the female member 21 than in the case of FIGS.

In the present invention, the respective members can be joined by welding, in addition to bonding with a hot melt adhesive or the like.

[0015]

In the disposable diaper according to the present invention, the caregivers can simultaneously fasten the upper and lower fastening portions formed on the side edges by a single operation, so that the diaper is troublesome to wear. It does not take. In particular, in hospitals, nursery schools, nursing homes, etc. where caregivers need to allow a large number of infants and bedridden elderly people to put on and take off diapers within a relatively short period of time, the labor required for caregivers to wear diapers is It can be significantly reduced. In addition, the caregiver does not need to touch the fingertip with the engaging surface of the fastener, so that the fingertip does not hurt.

[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 II-II of FIG.

FIG. 3 is an enlarged side edge plan view showing one embodiment of the diaper.

[Explanation of symbols]

 2 Top sheet 3 Back sheet 4 Core 6 Front waist area 7 Rear waist area 8 Inseam area 13,14 Side edge 22,22A, 22B Fastening section

Claims (2)

[Claims] 1. A liquid-permeable top sheet, a liquid-impervious back sheet, and a liquid-absorbing core interposed between these sheets. Region, and a crotch region located between these two regions, the side edges of the front and rear waist circumferences are overlapped, and the fastening portions formed on the side edges of each other are detachably engaged with each other. A disposable diaper to be worn by wearing, wherein, among the fastening portions, a fastening portion formed on the inner surface of the side edge portion which is outside when overlapped is at least a portion closer to the outside of the side edge portion. A first portion having a width of 2 to 10 mm, which is vertically divided by a non-adhesive holding area having a vertical dimension of ３０30 mm and a waist direction dimension of at least 5 mm, and surrounding the fixing portion. In the handle ometer method of the area consisting of the peripheral area and the pinching area The disposable diaper that rigidity is characterized in that it is a 1 to 50 g. 2. A width 2 to 1 surrounding the fastening portion and the fastening portion.
The relative rigidity between the first peripheral area in the range of 0 mm and the pinching area, and the second peripheral area surrounding the area has the relative rigidity between the fastening portion, the area, and the second peripheral area. 2. The diaper according to claim 1, wherein the diapers are lower in the order of the peripheral area.