JP2558577Y2 - Disposable pants - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disposable pants, and more particularly, to a training pants / pants type diaper and incontinence pants for infants.

[0002]

2. Description of the Related Art In this type of pants, when stool is excreted, if the stool is pulled down from the waist of the wearer in the direction of the foot or pulled out and removed, the stool may adhere to the legs and the like. In order to avoid such a thing, both sides of the front and back body of the pants are welded intermittently in the vertical direction,
It is known to make the weld joint relatively easy to tear.

[0003]

SUMMARY OF THE INVENTION As described above, making the welded joints on both sides of the front and rear body of the pants relatively easy to tear is, on the other hand, one of the problems of the wearer during the wearing of the pants. Depending on the posture or movement, the welded joint may be easily torn easily.

[0004] When the pants are removed from the wearer, the welded joint is relatively easily torn, and while the pants are being worn, the welded joint is inadvertently torn by the posture and movement of the wearer. Preventing it from happening is a trade-off. The idea of this invention is to adjust such a relationship.

[0005]

According to the present invention, an absorbent core is interposed between inner and outer sheets, and leg opening forming portions are formed at both center edges of the two sheets and waist opening forming portions are formed at both longitudinal ends of the two sheets. And a laminate is formed by attaching elastic members to these opening forming portions, and the laminate is folded back and forth so that the front and rear bodies overlap and the inner sheet is positioned inside. Each side portion extending outward from the side edge of the core of the body is welded and joined along these to form a leg opening and a waist opening, and the welded joint of each side is attached to the front and rear body. Positioned on the inner side of each side edge, using a nonwoven fabric containing thermoplastic fibers as the two sheets, by forming the welded joint by welding the fibers together and intermittently providing the welded joint in the longitudinal direction. , The band of the welded joint It assumes disposable pants are no separable tear together the sides along.

[0006] This invention is based on the premise that the welding joints having high joining strength are arranged at both longitudinal ends of the respective side portions, and that the joining strength of the welding joining portions on the respective side portions is increased. The high welding joint and the low welding strength welding joint are arranged adjacent to each other in the longitudinal direction.

[0007]

In the pants according to the present invention, first, the upper end of the waist opening or the upper end of the leg opening is gripped with both hands, and the welded joints having high joint strength located at the upper ends are separated from each other by the front and rear bodies. When pulled relatively hard in the direction, the front and rear bodies are relatively easily torn along the welded joint and separated. At that time, in each welded joint, since high and low joining strength are arranged in the vertical direction of the pants, the caregiver who removes the pants is as if sliding the zipper slider. Such a feeling is felt, and it is torn smoothly.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The outline of an embodiment of the pants according to the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 3, a laminated body 1 is constituted by interposing an absorbing core 4 between inner and outer sheets 2 and 3 which are long in the longitudinal direction. The inner and outer sheets 2 and 3 are made of a nonwoven fabric containing a thermoplastic fiber, and have a recessed leg opening forming portion 5 at the center (inseam) both side edges and a straight waist opening forming portion 6 at both longitudinal ends. It is. Although not shown, if necessary,
As is well known, a liquid impermeable sheet such as a plastic film may be interposed at least on the lower surface of the absorbent core 4 in order to prevent leakage of excreted liquid. Absorption core 4
Is mainly composed of cottony pulp or a mixture thereof with superabsorbent polymer particles, and has a narrow crotch region, so-called hourglass shape. Leg opening forming part 5 and waist opening forming part 6
, Elastic elastic members 7 and 8 are attached along each of them while extending. The elastic members 7 and 8 may be made of natural or synthetic rubber, polyurethane foam, plastic film exhibiting elasticity by heat treatment, or any of relatively narrow and wide materials as long as the material has elasticity. can do.

The laminated body 1 is folded so that the front and rear bodies 1a and 1b overlap with each other via the vertical center line L and the inner sheet 2 is located inside, and the both sides are appropriately heat-sealed inside the both side edges 9 or The welding joint 10 is provided by ultrasonic welding, and the front and rear bodies 1a and 1b of both waist parts are joined to each other. Thereby, both leg opening 1c and waist opening 1d
And a welded joint 10
Is provided outside the band.

As shown in FIG. 4, the welded joint 10 is provided intermittently or intermittently in the longitudinal direction of the pants, and furthermore, both longitudinal ends of the front and rear bodies, that is, the upper end of the waist opening and the leg opening. The welded joints 10a at the upper ends of the parts and the required parts between them are made thicker to increase the joint strength, and the welded joints 10b between them are made thinner to reduce the joint strength.

[0012]

According to the pants according to the present invention, the welded joints having high joining strength are arranged at both longitudinal ends of each side of the front and rear body, so that the wearer can wear the pants while wearing the pants. Due to the posture or movement, the longitudinal ends, ie, the upper ends of the waist opening and the leg openings, are inadvertently torn, and therefore the subsequent welded joints are not torn as well. On the other hand, when the caregiver removes the pants from the wearer, the caregiver pulls one of the welded joints at the upper ends of the waist opening and the leg opening relatively strongly in a direction in which the front and rear bodies are separated from each other. Is relatively easily torn, and the subsequent welded joints are similarly torn to separate the front and rear bodies. Also, since the welded joints with high bonding strength are arranged between the upper ends of the waist opening and the leg openings, even if one of the welded joints at the upper ends is inadvertently torn, It is less likely that the welded joints in the row will be inadvertently torn at once.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a pants-type rivet as an example of pants according to the present invention.

FIG. 2 is a developed plan view of the staking method.

FIG. 3 is an upper end view of the staking method.

FIG. 4 is a front view of a welded joint of the staking method.

[Description of Signs] 1 Laminated body 1a Front body 1b Back body 2 Inner sheet 3 Outer sheet 4 Absorbing core 5 Leg opening forming part 6 Waist opening forming part 7, 8 Elastic elastic member 10 Welding joint 10a Welding with high joining strength Part 10b Welded joint with low joint strength

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-243807 (JP, A) French Patent Invention 2179533 (FR, B1)

Claims (1)

(57) [Scope of request for utility model registration] An absorbent core is interposed between inner and outer sheets,
A leg opening forming portion and a waist opening forming portion are formed at both ends in the longitudinal direction of both sheets at the center both side edges of the both sheets, and a laminate is formed by attaching elastic elastic members to these opening forming portions, Folding the laminated body so that the front and rear bodies are overlapped and the inner surface sheet is located inside, and welding and joining the respective side parts extending outward from the side edges of the core of the front and rear bodies along these. Forming a leg opening and a waist opening, and positioning the welded joint of each side inside the side edge of the front and rear body, using a nonwoven fabric containing thermoplastic fiber as the both sheets, In the disposable pants in which the portions are formed by welding the fibers together and the welded joint is provided intermittently in the longitudinal direction, the side portions are torn apart from each other along the band of the welded joint so that they can be separated. , Along with arranging the welded joints having a high joint strength at both ends in the longitudinal direction of the respective side portions, and in the row of the welded joints at the respective side portions, the welded joint having a higher joint strength and the lower joint strength having the lower joint strength are provided. The underpants, wherein a welding joint is arranged adjacent to each other in the longitudinal direction.