JPH08157U - Disposable pants-type wearing article - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a disposable pants-type wearing article that is easy to remove and has excellent breathability. SOLUTION: The disposable pants-type wearing article in which the laterally opposed side portions of the front body and the back body are joined by joining dots 14 arranged in parallel in the longitudinal and lateral directions at predetermined intervals.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disposable pants-type wearing article, and more particularly to a disposable pants-type wearing article in which laterally opposed side portions of a disposable pants-type wearing article are joined intermittently.

[0002]

[Prior art]

 Generally, training pants and pants-type disposable diapers as disposable wearing articles are laminated panels composed of a liquid-permeable top sheet and a liquid-impermeable back sheet, and in the case of a diaper, an absorbent body is interposed between them. An elastic member is attached to each of the waist and legs of the laminated panel in order to obtain a fit to the body while wearing and a function of preventing leakage of body fluid. Generally, such an article is paired with the body opening by stacking the laminated panel in two so that the top sheet is located inside and joining the opposite side portions of the front and rear body around the waist. And a leg opening portion is formed.

[0003]

[Issues to be solved by the device]

 In a disposable pants-type wearing article, the front body and the back body are joined by one or a plurality of adhesive lines continuous from the trunk opening to the leg opening. However, in such an article, if the excrement is excreted from the wearer, and when it is taken off and pulled down to the wearer's foot, if the excrement is stool, the process of removing Therefore, it is not uncommon for stool to adhere even to body parts that were not attached when defecation. To avoid this, as is known, it is preferable to tear and remove the joined front body and back body so as to separate them.

As described above, in the conventional article, the joining is made by the continuous adhesive line, so that the tearing operation is not easy. In addition, such a continuous adhesive line does not provide air permeability because the opposite side parts of the article are sealed.

The present invention is mainly intended to facilitate the tearing operation of the opposite side portion of an article and prevent the article from being inadvertently torn during wearing, and also to provide the air permeability of the opposite side portion thereof. The subject is the joint structure of the side portions.

[0006]

[Means for Solving the Problems]

 The article according to the present invention for solving the above-mentioned problems comprises a liquid-permeable top sheet and a liquid-impermeable back sheet, and the laterally opposed side portions of the front body and the back body are joined together to form a waistline and leg regions. A disposable underpants-type wearing article including elastic members respectively and.

According to the present invention, in the above structure, the laterally opposed side portions of the front and rear bodies are joined along a joint area having a predetermined width dimension extending in the longitudinal direction of the side portions. Is composed of a large number of bonding dots arranged in the vertical and horizontal directions of the bonding area at predetermined intervals, and the arrangement of the bonding dots in the vertical direction of the bonding area is the bonding dots in the vertical direction with respect to the bonding strength of the bonding area. It is characterized in that a difference occurs depending on the arrangement of.

[0008]

[Action]

 The worn article can be easily removed from the wearer by tearing the front body and the back body along the joint area. The air permeability inside and outside the article is obtained through the non-bonding portion between the bonding dots.

[0009]

【Example】

 A disposable diaper as an example of an article according to the present invention will be described below with reference to the drawings.

In FIG. 1, the diaper 1 includes a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, an absorber 4 (see FIG. 2), a waist elastic member 5, and a leg elastic member 6. Contains. Gathers are formed on the peripheral edges of the body opening 7 and the leg openings 8 by the contracting action of the elastic members 5 and 6. On the laterally opposite side portion 9 of the diaper 1, the respective side portions 10A and 11A of the front body 10 and the back body 11 are integrally joined in the joint area 14. The absorber 4 is not always necessary for implementing the present invention.

In FIG. 2, the diaper 1 comprises a laminated panel 1 ′ formed by a top sheet 2, a back sheet 3, and an absorber 4 interposed therebetween. The top sheet 2 is composed of thermo-crimped thermoplastic fibers, is a nonwoven fabric in which the fibers are entangled under the action of a high-pressure water stream, and has elastic stretchability. The absorber 4 is preferably made of a crushed pulp model containing a superabsorbent polymer in an amount of 5 to 15% by weight. The back sheet 3 has a two-layer structure and is composed of a liquid-impervious sheet 16 which is made of a polyethylene-based thermoplastic elastomer and is highly elastic and stretchable, and a thermo-crimped thermoplastic fiber. The stretchable non-woven fabric 17 entangled with is intermittently joined with a hot melt adhesive. The liquid-impervious sheet 16 faces the top sheet 2 via the absorber 4, and the nonwoven fabric 17 serves as the outer surface of the diaper 1. The liquid impermeable sheet 16 imparts liquid impermeability to the back sheet 3 as a matter of course. The non-woven cloth 17 gives a cloth-like feel to the outer surface of the diaper 1. Also, by intermittently joining the liquid-impervious sheet 16 and the nonwoven fabric 17 to each other, the strength of the backsheet 3 is improved without impairing the stretchability. On the liquid-impervious sheet 16 of the back sheet 3, a waist elastic member 5 made of a plurality of thread rubbers and a leg elastic member 6 made of a plurality of thread rubbers and made of front and rear members 6A and 6B are provided. Are bonded with a hot melt adhesive under stretch. The front and rear members 6A and 6B are hardly stretched in the crotch region 15 between the intersecting intersections. The elastic members 5 and 6 are continuously supplied along the flow direction in the continuous production line of the diaper 1, and run across the width direction of the diaper 1, and both cutting edges of the elastic members 5 and 6 are laterally opposed to each other. The part 9 (see FIG. 3) faces the side edge of the back sheet 3.

The top sheet 2 and the back sheet 3 have the same outer shape, extend outward from the outer periphery of the absorbent body 4, and are joined to each other at the extending portion. The laminated panel 1 ′ is divided into two parts in the longitudinal direction, folded so that the top sheet 2 is on the inside, and the laterally opposed side parts 10A and 11A of the front body 10 and the back body 11 are overlapped with each other to form a joint area. The body opening 7 and the pair of leg openings 8 are formed by integrally joining them with each other. In the diaper 1 configured in this manner, the rubber threads 5 and 6A on the front body 10 side substantially overlap with the rubber threads 5 and 6B on the rear body 11 side, respectively, and the trunk opening 7 and the leg opening 8 are respectively formed. Is substantially continuous in the circumferential direction.

In FIG. 3, the joint area 14 extends in the longitudinal direction of the side portion 9 from the trunk opening 7 to the leg opening 8, and the materials of the front and rear bodies 10, 11 are bonded by an adhesive or ultrasonic welding. It is configured by alternately repeating the joined dots 14A and the non-joined portions 14B. Each of the bonding dots 14A has a diameter of 2 to 4 mm, and two of them are arranged in parallel in the width direction of the bonding region 14, and these two parallel ones are arranged in the longitudinal direction at a predetermined interval, and between these two parallel ones. There is one intervening pattern. Therefore, in the joint region 14, the strength of the joint, in other words, the tear resistance of the front and rear bodies, varies in the longitudinal direction. The lengthwise opposing ends of the elastic members 5 and 6 are positioned between the adjacent bonding dots 14A in the vertical direction of the bonding area 14, that is, the non-bonding portion 14B.

[0014]

[Effect of device]

 The article according to the present invention has the following effects.

When detaching the worn articles, by pulling at least one of the laterally opposite side portions of the front and rear bodies in a direction away from each other, they can be easily torn along the joint area, and the detaching operation can also be performed. It's easy. Moreover, the arrangement of the bonding dots in the vertical direction of the bonding area causes a difference in the bonding strength of the bonding area depending on the arrangement of the bonding dots in the vertical direction. Even if the front and rear bodies are torn from the upper or lower end of the, the tearing force is continuously transmitted, and the articles will not accidentally fall off. (Claim 1).

Since the bonding area is composed of the bonding dots arranged in parallel in the vertical direction, the air permeability inside and outside the article is excellent, and it is possible to suppress stuffiness inside the article (Claim 1).

[Brief description of drawings]

FIG. 1 is a perspective view of a diaper according to the present invention.

2 is an exploded perspective view of the diaper of FIG.

FIG. 3 is a partially enlarged view of the diaper of FIG.

[Explanation of symbols]

 1 Diaper 2 Topsheet 3 Backsheet 4 Absorber 5,6 Elastic member 9 Laterally opposed side parts 10 Front body 11 Back body 14 Bonding area 14A Bonding dot 14B Non-bonding part

Claims (1)

[Scope of utility model registration request] 1. A liquid-permeable top sheet and a liquid-impermeable back sheet, wherein laterally opposite side portions of a front body and a back body are joined to each other, and elastic members are provided at a torso opening and a leg opening, respectively. In the disposable pants-type wearing article, the laterally opposed side portions of the front and rear bodies are joined along a joint area having a predetermined width dimension extending in the longitudinal direction of the side portions, and the joint area is the joint. It is composed of a large number of bonding dots arranged at a predetermined interval in the vertical and horizontal directions of the area, the array of the bonding dots in the vertical direction of the bonding area, with respect to the bonding strength of the bonding area for each array of the bonding dots in the vertical direction. The article is characterized in that there is a difference.