JP2616997B2 - Sanitary disposable shorts - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to sanitary disposable shorts, and more particularly, to a disposable sanitary short having a menstrual absorption core.

[Conventional technology and its problems]

Conventionally, sanitary disposable shorts and sanitary napkins are combined as one, for example,
23, 60-155522, 60-158825, 61-16118, 61-180
025, 63-40921, 63-127624, 1-68029, 1-8
2021 is known.

Some of these publicly known inventions have elastic members around the legs and waist in order to measure the conformity of the shorts to the body, and also employ a non-woven fabric or the like that seems to have some elasticity as the fabric of the shorts body. It has been disclosed.

However, in general, the nonwoven fabric has low elasticity and low extension stress as elastic clothing. This is an inevitable drawback due to the constituent fibers and texture of the nonwoven. Shorts made of such non-woven fabrics are not very satisfactory in that they not only elastically adhere to the body sufficiently, but also that the napkin is sufficiently pressed against the female part to prevent so-called lateral leakage of menstrual blood. . For these reasons, the reality is that it has not yet been put to practical use.

Further, in the known invention, a part of the shorts cloth is used as a napkin without specially creating the shorts cloth, or the shorts and the napkin are independently formed and the latter is fixed to the former. However, as seen in conventional napkin and disposable diaper manufacturing technology,
There is no disclosure of a technical content that can be mass-produced at low cost with an apparatus. What can be said from the disclosed contents of the above-mentioned known inventions is that most of them do not fall outside the scope of mere ideas, and are assumed to be processed by craftsmen.

The object of the present invention is not only that it can be mass-produced with a device like a conventional napkin or disposable diaper, but also,
It is an object of the present invention to provide sanitary disposable shorts in which shorts can be elastically adhered to the whole body and a menstrual absorption part as a napkin can be pressed against a local part of a woman to prevent leakage of menstrual blood.

[Means for solving the problem]

In order to achieve the above object, the shorts of the present invention comprise a top sheet made of a stretchable nonwoven fabric, and a backsheet formed by intermittently bonding a stretchable plastic film to at least a central region of the inner surface of the stretchable nonwoven fabric. A menstrual absorption core is interposed between the top sheet and the back sheet in the crotch area, and elastic members are attached around the legs and the waist, respectively.

In a preferred embodiment, an elastic member is located on the lower surface of the core, and the plastic film is not located on both sides of the shorts, or is located on both sides thereof, and ventilation holes are provided on both sides thereof. is there.

[Action]

According to the shorts of the present invention having the above configuration, the leg circumference and the waist circumference of the shorts are pressed against the corresponding parts of the body with the elastic members around the legs and the waist to seal the corresponding body parts.
The elasticity of the entire fabric made of the two stretchable nonwoven fabrics and the stretchable plastic film interposed therebetween makes the fabric tightly adhere to the whole body, and presses the menstrual absorption core to the female local part.

The elastic member located on the lower surface of the core performs a function of assisting the press-contact of the menstrual blood absorbing core to the female part.

By not locating the plastic film on both sides of the shorts, or by locating the plastic film on both sides thereof and providing a group of ventilation holes, ventilation of the shorts into and out of the shorts when worn can be achieved.

Naturally, the excreted menstrual blood is absorbed by the core, and the absorbed menstrual blood is prevented from permeating to the outer surface of the shorts due to the plastic film acting as a barrier.

〔Example〕

An embodiment of the shorts of the present invention will be described below with reference to the drawings.

FIG. 1 shows a perspective view of the shorts 1. Shorts 1
Has a leg opening 2 and a waist (torso) opening 3, and has a leg elastic member 4 and a waist elastic member 5 attached thereto.

FIG. 2 shows an exploded perspective view of the shorts 1. The shorts 1 include a top sheet 6, a back sheet 7, a mat or sheet-like menstrual blood collecting and absorbing core 8, and the elastic members 4,5. On both side edges of the crotch region 12 located between the front and rear regions 10 and 11 of the top and back sheets 6 and 7, recessed edges 13 and 14 forming the leg opening 2 are provided. The topsheet 6 is made of a stretchable nonwoven fabric, and the backsheet 7 is made of a plastic bonded to the inside of a stretchable nonwoven fabric 7a of the same material as the topsheet 6 by an adhesive or welding means 17 intermittently provided (see FIG. 4). Each is composed of a film 7b. The top sheet 6 and the core 8 are joined to the inner surface of the back sheet 7 by an adhesive or welding means 16 provided intermittently. Although the means 16 and 17 are shown as scattered points, they may be intermittent lines of appropriate length. The reason for this is that the presence of the adhesive or the welding means 16, 17 does not impair the elasticity of the top and back sheets 6, 7 and the film 7b, and the flexibility of the whole cloth made of these sheets and films. In order to Fine ventilation holes 18 are provided on both sides of the film 7b in the front and rear regions 10, 11 to allow ventilation on both sides of the shorts. In order to achieve such ventilation, as shown in FIG. 5, the width of the film 7b may be formed smaller than that of the nonwoven fabric 7a. Elastic members 4 and 5 around the legs and the waist are arranged in the crotch region 12 of the top and back sheets 6 and 7 and the waist 19 of the front and rear regions 10 and 11, respectively. The leg elastic member 4 includes a first member 4A and a second member 4B. The first and second members 4A, 4B, the top portion 4A _1, 4B ₁ their near both ends portions extend to the outer end of the cross section brought crossing near the center of each notch edges 13, 14 and /
Alternatively, an adhesive is adhered to the inner surface of the back sheet along the cut edges 13 and 14, the central portions 4A ₂ and 4B ₂ are separated from each other, and the central portions are
Are located on the lower surface of the central area of the core 8 without being adhered to any of the above members. The interval between the central portions 4A ₂ and 4B ₂ can be appropriately determined according to the size and rigidity of the core 8. The center portions 4A ₂ and 4B ₂ are most preferably formed as in the embodiment, but elastic members separate from the side portions 4A ₁ and 4B ₁ may be used. You may adhere. The waist elastic member 5 is bonded to the inner surface of the top and / or back sheet along the waist 19 with an adhesive. The outer peripheral edges of the top and back sheets 6, 7 are joined by heat sealing or an adhesive. The upper surface of the core 8 may be intermittently joined to the top sheet 6 as necessary.
The laminated body thus constructed is folded into two in the longitudinal direction at the center thereof and both side edges thereof are joined by the heat sealing means 9, thereby forming the shorts 1 shown in FIG.

The nonwoven fabric as the top and back sheets 6 and 7 is a fiber web of a basis weight and density having sufficient liquid permeability, the core 8 is a mixed molded product of fluff pulp and water-absorbing polymer particles, and the film 7b is a polyolefin resin. The elastic members 4 and 5 can be made of one or more thread-like or ribbon-like rubber or plastic films, respectively.

The shorts of the present invention having the above configuration can be manufactured, for example, by the manufacturing method disclosed in Japanese Patent Application No. 1-167224. Briefly, after a plastic film 7b is joined to a continuous non-woven fabric 7a as a material of the back sheet 7, a continuous elasticity is controlled by two traverse means controlled by a cam means in the center area of the upper surface of the film. The members 4A and 4B are introduced and arranged and adhered via an adhesive, and at the same time, elastic members are introduced and arranged along both side edges of the upper surface of the film and adhered with the adhesive. A preformed core 8 is intermittently arranged at a predetermined position on the upper surface of the continuous film 7b, and a continuous nonwoven fabric as a top sheet 6 is supplied and joined to these upper surfaces. This continuous laminate is folded in two along its longitudinal center, and the area corresponding to the unit shorts is heat-sealed and cut to form the unit shorts.

〔The invention's effect〕

According to the shorts of the present invention, not only the leg surrounding and the waist elastic members of the shorts are pressed into contact with the corresponding parts of the body to seal them, but also the elasticity of the whole fabric makes the menstrual blood absorbing core closely adhere to the whole body. Because it is pressed against the female local part, when the wearer exercises, the absorbent core part does not move and deviates from the female local part, even if it is displaced by the scale, it is so sealed and adhered, and the fabric Has a plastic film interposed over the wide area of the shorts so that menstrual blood does not leak.

Further, the pressing of the core portion against the female local part is further enhanced by the pressing action of the elastic member located on the lower surface of the core, and the above-mentioned effect is more reliably obtained. Further, when the elastic member is not bonded to the constituent members of the shorts, the contraction of the elastic member is not restricted, so that the core portion is more strongly pressed against the female local part.

On both sides of the shorts, the inside and outside of the shorts can be ventilated, so that the inside of the shorts is less likely to be stuffy.

Therefore, the shorts according to the present invention are extremely useful as normal sanitary shorts for normal people, especially for night use, especially for persons with disabilities or sick people who lie on the floor, and also as diapers for receiving other excretions (feces and urine). It is informative.

[Brief description of the drawings]

1 is a perspective view, FIG. 2 is an exploded perspective view, FIG. 3 is a perspective view of a plastic film, FIG. 4 is a cross-sectional view of a back sheet, and FIG. FIG. 5 is a perspective view of a back sheet according to another embodiment. 1 Shorts 4 Leg elastic members 4A First part 4B Second parts 4A ₁ and 4B ₁ Side parts 4A ₂ and 4B ₂ Central part 5 Waist elastic members 6 … Top sheet 7… Back sheet 7a… Non-woven fabric 7b… Plastic film 8… Absorbent core 16, 17… Joint (adhesive) 18… Vent group

Claims (5)

(57) [Claims] 1. A menstruation comprising a top sheet, a back sheet, a mat or sheet-shaped menstrual absorption core interposed between the two sheets, and elastic members attached along the leg circumference and the waist circumference, respectively. In the disposable shorts for use, the top sheet is made of a stretchable nonwoven fabric, and the backsheet is made of a stretchable nonwoven fabric that is intermittently joined to a stretchable plastic film at least in a central region of an inner surface thereof. Said shorts. 2. The shorts according to claim 1, wherein the extension or the separate elastic member is located between the elastic members around the legs, and is located substantially in the center area of the lower surface of the core. 3. The leg surrounding elastic member is composed of first and second members, and the first and second members intersect between the leg surrounding concave notched edges so as to be in front of the both concave notched edges. And both sides of the first and second members along at least both of the recessed edges are adhered to at least one of the top and back sheets. 2. The shorts according to claim 1, wherein a central portion of the first and second members extending therebetween is located substantially in a central region of a lower surface of the core. 4. The leg-surrounding elastic member is composed of first and second members, and the first and second members intersect between the recessed edges around both legs so as to be in front of the recessed edges. And both sides of the first and second members along at least both of the recessed edges are adhered to at least one of the top and back sheets. 2. The shorts according to claim 1, wherein a central portion of the first and second members extending therebetween is located substantially in a central area on a lower surface of the core without being bonded to any of the top and back sheets and the core. 5. The shorts according to claim 1, wherein a group of ventilation holes is provided on both sides of the front and rear areas of the plastic film constituting the inner surface of the back sheet.