JPH09212U - Disposable diapers - Google Patents

Abstract

(57) [Summary] [Purpose] The wing portion of the diaper is formed of an elastic stretchable sheet to improve fit. [Composition] A wing portion 5 is provided on the side edge of the rear body 3 of the diaper 1. The wing portion 5 has a first slit 31 in the waist circumference direction.
And a second slit 32 inclined from the outer edge 23 of the wing toward the crotch part 4.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a disposable diaper for absorbing and holding excrement.

[0002]

[Prior art]

 Conventionally, a technique of providing elastic stretchable members around the legs and the waist to improve fit of a disposable diaper is well known. Further, a technique of providing a tape fastener on the side edge of the back body for connecting the front body and the back body is also well known. This fastener is usually sized so that it can be picked with one hand for the purpose of enabling one-handed operation and reducing the cost of the diaper as much as possible. As a means for connecting the fastener to the front body side, sticking with an adhesive or a locking mechanism known as the product name Velcro is used.

[0003]

[Problems to be solved by the device]

 This type of diaper has the advantage that the fastener operation is extremely easy. However, on the other hand, the area for attaching or locking the fasteners to the front body is small, and in comparison, the distance between the elastic elastic members around the waist and legs arranged vertically at the side edges of the back body is large, and However, since the longitudinal directions of these members are different, it often happens that when the diaper is worn, even if the fastener is pulled in the girth direction, the elastic members are not in an equally stretched state. In that case, there is a problem that the fit around the torso or legs becomes poor, which may cause fluid leakage. Further, after wearing, there is a problem in that the front and back body parts that have been overlapped with each other shift, and for example, the legs and legs become open, which also causes fluid leakage.

According to the invention, a wing portion having elastic expansion and contraction means in the waist circumference direction and elastic expansion and contraction means in the leg circumference direction is provided on the rear body side edge of the diaper, and when the diaper is worn, the waist circumference and leg circumference Therefore, it is an object to solve the above-mentioned conventional problems by making it possible to obtain a proper stretched state.

[0005]

[Means for Solving the Problems]

 The gist of the present invention to solve the above problems is as follows.

In this invention, a liquid-permeable front sheet, a liquid-impermeable back sheet, an absorbent body interposed between these sheets, and the front and rear edges of the absorbent body to the outside. Ventral and dorsal waist flaps from which both sheets extend, leg flaps from which both sheets extend outside both edges of the crotch of the absorber, and elastics disposed on the leg flaps. It is premised on a disposable diaper having an elastic member, a wing portion extending from the waist and leg flaps on both outer sides of the back body, and a connecting means with the front body near the outer edge of the wing portion. .

In this invention, on the premise, the wing portion is formed by joining an elastic stretchable sheet which is separate from the wing portion to the waist and leg flaps, and the wing portion includes the wing portion. First slit extending in the girth direction while leaving the outer edge of the wing, and a second slit extending from the vicinity of the outer edge of the wing part in the diaper crotch direction from the vicinity thereof Is provided, and the connecting means is located on the major axes of the first and second slits.

[0008]

【Example】

 The details of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a disposable diaper 1 according to the present invention assembled and worn. The diaper 1 has a front body 2, a back body 3, and a crotch part 4 interposed between these two bodies 2, 3, and the wing portions 5 on the left and right of the back body 3 are detachably attached to the front body 2. And a waist opening 6 and leg openings 7 are formed.

FIG. 2 is a plan view showing the diaper 1 of FIG. 1 in a developed state with a part cut away. The diaper 1 has a water-permeable top sheet 10, a water-impermeable back sheet 11, and a rectangular absorber 12 interposed between the two sheets 10 1, 11, and front and rear end edges 13, 1 of the absorber 12 are arranged. The extended front and back sheets 10 and 11 are joined to the outside of 4 to form an abdominal flap 15 and a back flap 16, and the extended front and back sheets are also outside the left and right side edges 17 of the absorbent body 12. A leg flap 8 is formed by joining 10 and 11 together. The rear body 3 is provided with a wing portion 5 to which the front and back sheets 10 and 11 extending from the side edge of the absorber 12 are joined. The back flap 16 is provided with a ribbon-shaped elastic stretchable member 21 which is interposed between the front and back sheets 10 and 11 and is attached to at least one of the sheets while being stretched in the waistline direction. Elastic elastic members 22 stretched in the front-back direction of the diaper 1 are similarly attached to the leg flaps 18. The member 22 may be arranged in a straight line in the front-rear direction, but preferably, at least both ends thereof are curved outward as shown in the drawing so as to have a shape that easily fits around the legs.

The wing portion 5 has a ribbon-shaped first elastic expansion / contraction member 24 extending along the waistline direction (horizontal direction in the figure) of the elastic expansion / contraction member 21 and extending to the vicinity of the outer edge 23 of the wing part. A second elastic elastic member 25 in the form of a ribbon arranged obliquely from 23 to the crotch portion 4 is attached under extension. Preferably, the inner end direction of the slanted second elastic expansion / contraction member 25 is made to substantially coincide with the direction of the end portion of the curved leg elastic member. On the front surface side near the outer edge 23, the adhesive 26 is applied on the major axis of each of the first and second elastic members 24 and 25 including the extended lines thereof, and the back sheet of the front body 2 is coated. It is adapted to be detachably attached to 11.

When the diaper 1 is worn, the first elastic elastic member 24 is first stretched in the waist circumference direction in the wing portion 5 to adhere the vicinity of the outer edge 23 of the member 24 to the front body 2, and at the same time, 2 The elastic elastic member 25 is extended obliquely upward and the vicinity of the outer edge 23 is attached to the front body 2. By doing so, the waist elastic elastic member 21 and the leg elastic elastic member 22 can be individually stretched to a proper stretched state, and the diaper 1 fits the body well. Since the elastic members 21 and 22 are separately attached to the front body 2 on the respective extension lines during wearing, expansion and contraction of the elastic members rarely directly interfere with each other, resulting in vigorous exercise. But diaper 1 is hard to come off.

The wing portion 5 may be formed by extending the front and back sheets 10, 11 from the side edge 17 of the absorbent body 12 and joining them together, but another member prepared in the shape of a wing is used as the surface sheet. It can also be formed by joining to 10 and / or the back sheet 11. In the latter case, it is not essential that the wing part be composed of two sheets, and it is possible to use only one sheet. When the wing portion 5 is a laminated two sheet, it is preferable that the first elastic elastic member 24 and the second elastic elastic member 25 are interposed between the both sheets. The first elastic elastic member 24 and the second elastic elastic member 25 may each be an appropriate number of elastic ribbons. Further, the second elastic stretchable member 25 can have a difference in inclination in the crotch portion 4 direction among a plurality of elastic ribbons. Each elastic stretchable member 24, 25 can be of any suitable length, and it does not matter whether or not it extends to the outer edge 23. Therefore, the adhesive 26 has a long length and may be applied on the expansion members 24 and 25 in the vicinity of the outer edge 23, while the adhesive 26 may have a short length and extend on the extension line of the members 24 and 25. 26 may be applied. The pressure sensitive adhesive 26 can be applied continuously across the members 24 and 25 in the front-back direction of the diaper.

FIG. 3 is a plan view similar to FIG. 2, showing another embodiment of the diaper 1. In this embodiment, the wing portion 5 is made of a stretchable sheet of rubber, elastomer, stretchable non-woven fabric or the like, and is joined to the side edges of the rear body. The wing portion 5 is provided with a slit 31 in the girth direction close to the end edge of the diaper 1 and a slit 32 inclined from the outer edge 23 of the wing toward the crotch 4 direction, and each slit 31, 32 and the outline of the wing portion 5 are provided. The first and second elastic members 31A and 32A formed by and are elastic means that operate in the same manner as the first and second elastic expansion / contraction members 24 and 25. An adhesive 26 is applied near the outer edges 23 of the first and second elastic portions 31A and 32A. This wing portion 5 has an advantage that it is possible to provide an elastic means that does not interfere with each other in the girth direction and the crotch direction only by slitting one elastic sheet. In this embodiment, the hourglass type absorbent body 12 is used.

A conventional material may be used for the diaper 1. For example, a nonwoven fabric or an open plastic sheet is used for the top sheet 10, a plastic sheet such as polyethylene is used for the back sheet 11, and a crushed material is used for the absorbent body 12. Pulp or a mixture of it and a super absorbent polymer can be used. The material of the wing portion 5 may be appropriately selected from materials that can be used for the topsheet 10 and the backsheet 11.

[0016]

[Effect of the invention]

 In the diaper according to the present invention, the wing portion is formed of a material having elastic expansion and contraction, so that the diaper can be elastically adhered to the wearer over a relatively wide area around the waist and the first and second slits The wing acts on the waist and leg directions, and the actions in those directions do not directly interfere with each other. However, it is unlikely that the diaper will slip.

[Brief description of drawings]

FIG. 1 is a perspective view of a diaper assembled in a worn state.

FIG. 2 is a plan view showing the diaper of FIG. 1 unfolded and partially cut away.

FIG. 3 is a plan view similar to FIG. 2, showing one embodiment of the diaper.

[Explanation of symbols]

 2 front body 3 back body 4 crotch part 5 wing part 10 top sheet 11 back sheet 12 absorber 13,14 edge 15 ventral flap 16 back flap 18 leg flap 22 elastic elastic member 23 outer edge 31 first Slit 32 Second slit 26 Connecting means (adhesive)

Claims (1)

[Utility model registration claims] 1. A liquid-permeable front surface sheet, a liquid-impermeable back surface sheet, an absorbent body interposed between these sheets, and both sheets from the front and rear edges of the absorbent body to the outside. -Abdominal and dorsal waist flaps from which the gut extends, leg flaps from which both sheets extend outside both side edges of the crotch part of the absorber, and elastic stretchable members arranged on the leg flaps. In the disposable diaper having a wing portion extending from the flaps around the waist and legs on both outer sides of the back body, and a connecting means for connecting to the front body near the outer edge of the wing, the wing portion includes the waist circumference. And an elastic stretchable sheet which is a separate body from these and are joined to the leg flaps, and the wing portion has a first slit extending in the waist circumference direction while leaving an outer edge portion of the wing portion. And leave the outer edge of the wing A second slit extending from the vicinity thereof to be inclined toward the crotch portion of the diaper is provided, and the connecting means is located on the major axes of the first and second slits. Disposable diaper.