JPS62231005A - Disposable absorbing panty - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to disposable absorbent pants formed in advance into a complete pant shape for use as diapers for infants, so-called training pants, diapers for incontinent persons, etc. Regarding.

(Prior Art) Japanese Patent Laid-Open No. 58-11507 discloses disposable absorbent pants that are previously formed into a complete pant shape and have elastic members in a waistband and a pair of leg holes.

(Problems to be Solved by the Invention) According to the pants of the known art, there is a gap between the horizontally rectangular water-permeable top sheet and the same-shaped water-impermeable back sheet, which are sized to form the front body and the back body. , a space is provided in the central region between these lateral opposite ends, and absorbent cores for the front body and the back body are interposed, an elastic member for the waistband is provided at the upper end of the backsheet, and a leg hole is provided at the lower end of the backsheet. Nine stretchable members are glued together to form a laminate, the laminate is bent around the space, and the front body and back body are joined at the lower end between the space and the opposite end. As a result, it is formed into a pants shape.

However, although pants formed in this manner have the advantage of being simple to manufacture, they also have problems with their absorbent function because the joints between the front and back body components are located in the crotch area. However, since the crotch area is the two halves that receive the strongest tensile force due to the movement of the wearer's legs, the two halves may separate or break, causing the pant to lose its function and cause excrement to leak.

Furthermore, there is a problem in that the two-part joint gives the wearer an unpleasant and unnatural feeling. Furthermore, the front body and the back body are formed to have the same size, and the pair of leg holes are located on the joining line, that is, on the center line dividing the front body and the back body in the longitudinal direction of the pants. Therefore, due to the rigidity of the components of the pants, especially the absorbent core, and the body shape of a human body (infant), the two halves of the buttocks are stretched (so-called "tight"), while the two halves of the abdomen are stretched. There is also the problem that the two halves become loose (so-called ``sag'').

Therefore, an object of the present invention is to provide disposable absorbent pants that can solve the above-mentioned problems by extremely simple means.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention includes: a water-permeable top sheet that comes into contact with the wearer's skin; a water-impermeable back sheet that is located on the opposite side of the top sheet; Disposable absorbent pants comprising: a pants main body consisting of an absorbent core interposed between the two sheets; a waistband; and elastic members forming elastic gears in a pair of leg holes; The holes are formed by recessed portions on opposite sides of the crotch region in the lateral direction when the pants main body is in the unfolded state; The elastic member of the leg hole is bonded to each half of the backsheet; when the pants main body is in the unfolded state, the elastic member of the leg hole is attached to a first member that extends in the horizontal direction and is located at vertically opposite ends of the recessed part; a second member that is located on the lateral inner side of the notch and extends in the vertical direction and connects to the first opposed member; Enclosed except for the outside of the notch; the pant body is folded back in the horizontal direction that bisects it in the vertical direction via the center line, and these are joined along the opposite side edges in the horizontal direction. It is characterized in that it is assembled by.

In a particularly preferred embodiment, the recessed portion is deviated toward the front region from the center line when the pants body is in an unfolded state; the pants body has a back region larger than a front region. In the unfolded state, the pants main body has a concave cutout between laterally opposing side edges of the front region and the back region and between longitudinally opposing ends of each region.

(Example) Further, the pants according to the present invention will be described below based on the illustrated example.

In FIGS. 1 and 2, the pants body 1 is indicated by the reference numeral 1 in its entirety. The pants body 1 consists of a water-permeable top sheet 2, a water-impermeable back sheet 3 of the same size, and an absorbent core 4 smaller than both sheets. In addition, the pants body includes an elastic member 5 that creates gears on the waistband,
Elastic members 6a and 6b that create gathers in the leg holes
, 6c.

The top sheet 2 is a non-woven fabric, the back sheet 3 is a plastic film or a laminate sheet of the film and non-woven fabric, and the core 4 is a mat-like body of fluff pulp or a mixture of the pulp and superabsorbent polymer particles, and its upper and lower surfaces. A water-permeable sheet placed in the area is used. The elastic member 5 has a relatively wide width (for example, 10 to 451II11).
urethane home etc.

The elastic members 6a and 6b include elastic members 6 such as thread-like rubber.
For c, a relatively wide plastic film (for example, 10 to 45 μm) that develops elasticity through heat treatment is used. However, the elastic members 5, 6a, 6b, 6c
The material and width of the pants are not necessarily limited by the part of the pants body 1 to which they are attached, and can be selected as appropriate.

Elastic members 5a and 5b are located between the vertically opposing ends of the top sheet 2 and back sheet 3 in the front region (front body) 7 and back region (rear body) 8 of the pants body 1, that is, in the waistband 10. Interposed and glued. In order to form a leg hole 11 on the lateral opposite sides of the top sheet 2 and back sheet 3 in the crotch region 9 of the pants body 1, the leg hole 11 is formed on the side of the front region 8 from the lateral center line X that bisects the pants body 1. A semi-elliptical recessed part 12 is provided which is deviated to the opposite side.

Therefore, the back region 8 of the pants body 1 is formed larger than the front region 7. An elastic member 5 is provided between the vertically opposing ends of the recessed part 12 of the top sheet 7 and the back sheet 8.
Expandable members 6a and 6b are interposed and bonded to each other, extending laterally in parallel with each other. Between the vertically opposing inner sides of the recessed part 12 of the top sheet 7 and the bag sheet 8, there is an elastic member 6a extending in the vertical direction parallel to each other.

A telescopic member 6c is interposed and bonded to the member 6b.

A ■-shaped recessed notch 13 is provided between the horizontally opposing side edges of the top sheet Z and the backsheet 3 in the front region 7 and the back region 8, and between the longitudinally opposing ends in each region. . The recessed part 13 may be formed in a curved line. A core 4, which is narrower in the crotch region 9 and larger in the back region 8 than in the front region 7, is adhered relatively immovably between the central regions of the top sheet 2 and the back sheet 3. Adhesion between the outside 1188 of the topsheet 2 and backsheet 3, the elastic members 5, 6a, 6b, 6c to the topsheet 2 and/or backsheet 3, and the core 4 to the topsheet 2 and/or backsheet 3 is , hot-melt adhesives, or if they have heat-sealing properties, they may also be made with hot-melt adhesives.

As shown in FIG. 3, such pants are made by placing and bonding a core 4 and elastic members 5, 6a, 6b, and 6c between a rectangular top sheet 2 and a back sheet 3, and then attaching the top sheet 1-2. This can be obtained by cutting the backsheet 3 along the dashed line 14. By the way, when such pants are serially produced by machine.

The top sheet 2 and the back sheets 1-3 are supplied in a continuous manner in the longitudinal direction, and are cut to a predetermined length in the longitudinal direction at the same time as the cutting.

The pants formed in this way are folded back in the longitudinal direction so that the bag sheet 3 is located on the outside through the lateral center line, and the lateral opposite side edges 1 of the front region 7 and the back region 8 are
5 are preferably joined by heat welding, thereby assembling as shown in FIG.

(Effects of the Invention) Since the pants according to the present invention are formed into a complete pant shape, they are extremely easy to wear once compared to conventional disposable diapers that are assembled when worn.
Needless to say, it has good fit to the wearer's body.

Particularly, unlike the pants according to the prior art described above, there is no joint between the component parts between the pair of leg holes, that is, in the crotch area; It is continuous across the side areas.

Therefore, even if the wearer moves his/her legs freely, the crotch area will not separate or break, causing the pant function to be lost, causing excrement to leak, or causing the wearer to feel uncomfortable. In addition, when the pants main body is in an unfolded state, it has a concave notch for forming a leg hole on the side opposite to the crotch area in the lateral direction, and the leg hole is completely formed in the concave notch. In this case, since the stretchable member is provided so as to surround the leg hole, the leg hole is completely in close contact with the shoulder area, and there is no risk of excrement leaking therefrom.

Furthermore, in the embodiment, the rear region is formed larger than the front region, and furthermore, when the pants main body is in an unfolded state, the recessed part for forming the leg hole is closer to the lateral center line of the pants main body. The body is also deviated toward the front region, and has a concave notch on the opposite side edge of the surface area to improve the fit to the body, and the concave notch is joined along the side edge. Due to the rigidity of the component parts and the body shape of the wearer, the completed pants do not become stretched in the two halves of the buttocks or loosen in the two halves of the abdomen, and the fit is further improved. improves.

[Brief explanation of drawings]

The drawings show an embodiment of the pants according to the present invention, and FIG. 1 is a perspective view of the completed state, FIG. 2 is a partially cutaway developed plan view, and FIG. 3 is a developed plan view showing the forming process. be. 1... Pants body 2... Top sheet 3... Back sheet 4... Core 5, 6a, 6b, 6cm elastic member 7... Front area 8... Back area 9... Inseam Area 10...Waistband 11...Leg hole 12.13...Concave cutout

Claims (4)

[Claims] (1) A pants body consisting of a water-permeable top sheet in contact with the wearer's skin, an impermeable back sheet located on the opposite side of the top sheet, and an absorbent core interposed between the two sheets; waist; Disposable absorbent pants comprising: a band; and an elastic member that forms elastic gathers in a pair of leg holes; a. The pair of leg holes are formed by recessed portions on opposite sides in the lateral direction in the crotch region when the pants main body is in an unfolded state. b. Each of the elastic members is bonded between each portion of the top sheet and the back sheet that form the waistband and the pair of leg holes. c. The elastic member of the leg hole includes a first member that is located at vertically opposite ends of the recessed part and extends laterally, and a first member that is located laterally inside the recessed part when the pants main body is in the unfolded state. and a second member extending in the longitudinal direction and connecting to the first facing member, so that the recessed notch is surrounded except for the outside of the recessed notch by the elastic member when the pants main body is in the unfolded state. that it is d. The pants main body is assembled by folding back in the vertical direction along a horizontal center line that bisects the pants main body, and joining them along the horizontally opposite side edges. (2) The pants according to claim 1, wherein the recessed notch is deviated toward the front region side with respect to the center line when the pants main body is in an unfolded state. (3) The pants according to claim 1, wherein the pants main body has a back region larger than a front region. (4) In the unfolded state, the pants main body has a concave notch at laterally opposite side edges in the front region and the back region and between vertically opposite ends in each region. Pants as described in section.