JPH0611723U - Disposable diapers - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the flow and diffusion of stool on the surface of diapers. [Structure] A second topsheet 4 is superposed on the top surface of a topsheet 1 covering the top surface of a core, and the topsheet 4 is expanded by lateral contraction of an elastic member 8 to open a gather 9. A disposable diaper having an opening 7 formed at its edge.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a disposable diaper for receiving excrement.

[0002]

[Prior art]

 Conventionally, in this kind of diaper, in order to prevent the excrement of feces from adhering to the skin of the buttocks and crotch of the wearer, the liquid-permeable surface sheet that directly covers the upper surface of the liquid-absorbent core is used. It is known that the second surface sheet is located on the upper surface.

[0003]

[Problems to be solved by the device]

 However, since the second surface sheet adheres to the skin, excreted stool is pressed between the second surface sheet and the skin and flows and diffuses, so that the stool adheres widely to the skin. It is inevitable.

According to this invention, by floating at least the peripheral edge of the opening of the second surface sheet, stool can be surely flowed between the second surface sheet and another surface sheet on the lower surface thereof. The challenge is to configure

[0005]

[Means for Solving the Problems]

 In this invention, a liquid-absorbent core is interposed between a liquid-permeable topsheet and a liquid-impermeable backsheet, and at least the length direction of a liquid-resistant second topsheet is provided on the top surface of the topsheet. Assuming a disposable diaper with both ends joined, it is characterized by the following points.

That is, an opening is formed in the central region in the length direction of the second surface sheet, and a plurality of elastic members that are spaced apart in the length direction and contract in the lateral direction are arranged around the opening. The point that the elastic member expands the opening in the lateral direction and causes gathers on the periphery of the opening.

[0007]

[Action]

 Due to the contraction of the elastic member, at least the peripheral edge of the opening in the second surface sheet floats from the other surface sheet located on the lower surface thereof and adheres to the wearer's skin. Stool flows from the opening between the second topsheet and another topsheet.

[0008]

【Example】

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

1 and 2, the diaper comprises a liquid-permeable top sheet 1, a liquid-impermeable back sheet 2, and a liquid-absorbent core 3 interposed between the front and back sheets 1 and 2. It is composed of a liquid-resistant second surface sheet 4 having an outer peripheral portion joined to the upper surface of the surface sheet 1, leg elastic members 5 interposed on both sides, and fastening pieces 6 attached on both sides of the back waist. There is.

An elliptical opening 7 is formed in the central area of the second surface sheet 4 in the length direction. Around the opening 7, there are arranged a plurality of elastic members 8 which are spaced apart in the lengthwise direction and contract in the lateral direction. The contraction of these elastic members 8 expands the opening 7 laterally in the above-mentioned shape and causes gathers 9 at the periphery of the opening 7. The gather 9 floats the periphery including the peripheral edge of the opening 7 from the upper surface of the topsheet 1, so that a gap (pocket) is created between the topsheets 1 and 4.

The second topsheet 4 is composed of a central sheet 4a having openings 7 and elastic members 8 and side sheets 4b joined to both side edges thereof. As shown in FIG. 3, the apertures 7 are formed by attaching the elastic members 8 to the back surface of the central sheet 4a so as to be spaced apart from each other in the lengthwise direction thereof and extending in the lateral direction thereof, and to be indicated by a dashed line at the center of the lengthwise direction. 1 is formed, and the elastic member 8 is contracted so as to expand from the notch 10 in the lateral direction of the central sheet 4a as shown in FIG. It goes without saying that the second topsheet 4 may be formed of a single sheet.

4 to 7 show another method of forming the opening 7. That is, while feeding the elastic member 8 in a zigzag manner (the two elastic members 8 are further crossed in FIG. 6) to the central portion sheet 4a by a traverse means, the elastic member 8 is attached with an adhesive, and a cut 1 is made at the center in the longitudinal direction. By inserting 0, it is formed as described above.

The top sheet 1 is a non-woven fabric, the back sheet 2 is a plastic film, the core 3 is a mixture of fluff pulp and a super absorbent polymer, and the second top sheet 4 is a water repellent non-woven fabric, and an elastic member. Natural rubber elastic members or synthetic rubber elastic members can be used as the rubber members 5 and 8, respectively.

[0014]

[Effect of device]

 According to the diaper of the present invention having the above-mentioned configuration, since the opening is pulled in the same direction by the contraction elastic member in the lateral direction, the second surface sheet can be moved in any direction depending on the posture or motion of the wearer. Even if it is pulled into, the opening can maintain the size necessary for the inflow of stool. At the periphery of the opening, there is a gather that floats the opening from the upper surface of another surface sheet located on the lower surface, so that stool flows between the surface sheets and flows to the second surface sheet. Never.

Further, an elastic member is attached to the second surface sheet so as to be separated in the lengthwise direction and contract in the lateral direction, and an opening can be formed by making a notch in the center in the lengthwise direction. Therefore, the forming method is extremely easy, and the sheet material can be effectively used unlike the case of cutting the surface area corresponding to the opening.

[Brief description of drawings]

FIG. 1 is a developed front view of a diaper according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a plan view showing a process of forming openings in the second topsheet of the diaper.

FIG. 4A is a plan view showing a process of another embodiment of forming an opening in the second surface sheet. B is a plan view of the sheet in which openings are formed from the process.

FIG. 5A is a plan view showing a process of yet another embodiment of forming holes in the second surface sheet. B is a plan view of the sheet in which openings are formed from the process.

FIG. 6A is a plan view showing a process of yet another embodiment of forming an opening in the second surface sheet. B is a plan view of the sheet in which openings are formed from the process.

FIG. 7A is a plan view showing a process of yet another embodiment of forming an opening in the second surface sheet. B is a plan view of the sheet in which openings are formed from the process.

[Explanation of symbols]

 1 Top Sheet 2 Back Sheet 3 Core 4 Second Top Sheet 7 Openings 8 Elastic Member 9 Gather

Claims (1)

[Scope of utility model registration request] 1. A liquid-absorbent core is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and at least both lengthwise ends of a liquid-resistant second top sheet are provided on the upper surface of the top sheet. In the disposable diaper joined together, a plurality of elastic members that form an opening in the central region in the length direction of the second surface sheet and that are spaced apart in the length direction and contract in the lateral direction are formed around the opening. The diaper is characterized in that the diapers are arranged so that the elastic member expands the opening in the lateral direction thereof, and gathers are formed at the periphery of the opening.