JPH0372301B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to disposable diapers, and more particularly to a contoured diaper having a waist seal and tabs that are an extension of the waist seal.

In the past, U.S. Patent No. Stretch contour diapers have been developed, such as those described in US Pat. No. 3,869,003.

In US Pat. No. 4,050,462, elastic strips are also provided in the crotch area of the diaper.

Also, although the seal does prevent fluid from leaking out of the legs, fluid often leaks through the waist of the diaper when the infant is lying down. Experience has shown that the use of waistbands is unsatisfactory as elastic means to adjust the tension at the waist have not heretofore been achieved.

Elastic waist seals are old and well known for a variety of garments, including diapers. These waist seals are for holding the garment in place and provide a fluid barrier as well as providing a controlled and suitable amount of tension at the waist to position the diaper on the infant. It doesn't belong to.

The present invention includes a support sheet, an absorbent pad on the support sheet, and a pad overlaid on the absorbent pad,
and fixed along the periphery of the support sheet,
A disposable diaper having an upper sheet,
This disposable diaper has an elastic member fixed along the edge of the support sheet and forming a waist seal of the disposable diaper. A waist tab is formed on each longitudinal extension of the elastic member, and is integral with the waist seal and made of the same material as the elastic member;
The waist seal is configured to attach the disposable diaper to the user and adjust its tension, and the elastic member and the waist tab are configured to apply an equal pressing force to the waist of the user. It is a disposable diaper that is characterized by:

According to the disposable diaper configured in this way, equal pressing force is applied to the waist of the user by the waist seal and waist tab, which are integrally configured by the elastic member, so that the disposable diaper can be easily used. The discomfort felt by the user when wearing the product can be minimized.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying figures, in which like numerals indicate like parts throughout the various figures, numeral 10 generally indicates a stretchable contour diaper constructed in accordance with the concepts of the present invention. Diaper 10 also has an hourglass shape forming region 12 and four wide contoured ears 14, 16, etc. The diaper includes a support sheet 22 of liquid-tight polyethylene or other material.
An upper sheet 24, preferably of non-woven polyethylene or polypropylene fibers, is secured to the support sheet 22 along the periphery of the diaper 10, preferably with an adhesive, heat melt or pressure sensitive. An absorbent pad 26 is provided between the upper sheet 24 and the support sheet 22, which may be wood wool or the like. If desired, a sheet of soft material can be provided.

Optionally, and not specifically forming part of the present invention, a pair of elastic strips (not shown) may be provided.
The seal may also be formed in a conventional manner.

The elastic member 40 is coupled to the support sheet 22 by lines or dots of adhesive or other suitable means.
As shown in FIGS. 1-3, the telescoping member 40 may be coupled to the outside of the support sheet. Alternatively, and preferably as shown in FIG. 4, the telescoping member 40 is coupled to the interior of the support sheet.

When the expandable member 40 is in the expanded state, the support sheet 22
and thus contracting the waist area to form a waist seal.

Tabs 42 and 44 are used to secure the diaper to the infant.
is used. These tabs, in the embodiment shown in FIGS. 1 and 2, are an integral extension of the waist elastic member 40 and are coated with adhesive 46, over which a protective release sheet 48 is removably provided, allowing the tabs to be removed immediately before use. It is designed to be removed.

To install the diaper on an infant, the pull tabs 42 and 44 may be secured to the other pair of ears (not shown) on the diaper to the desired suitable tension on the waist.

A variation of the invention is shown in FIG. 3 in which another tab 50 is coupled to the elastic member 40 in parallel therewith to provide the desired stretch and tension on the elastic member when securing the diaper to the infant.

A preferred embodiment of the invention is shown in FIG. 4, in which an elastic member 40 is used inside the support sheet 22, an adhesive 46 is applied to the end 42 extending beyond the support sheet 22, and a release sheet 48
to protect the adhesive until just before use.

[Brief explanation of drawings]

Fig. 1 is a plan view of a disposable diaper constructed according to the outline of the present invention, Fig. 2 is a detailed cross-sectional view taken along the plane of line 2-2 in Fig. 1, and Fig. 3 is a modification of the present invention. A sectional detail similar to FIG. 2 of the example, and FIG. 4 a similar view to FIG. 2 of another preferred form of the invention. 10: diaper, 12: part, 14, 16:
Ear part, 22: Support sheet, 24: Upper sheet,
26: Absorbent pad, 40: Elastic member (waist seal), 42, 44: Tab, 46: Adhesive.

Claims (1)

[Scope of Claims] 1. A disposable diaper comprising a support sheet, an absorbent pad on the support sheet, and an upper sheet placed over the absorbent pad and fixed along the periphery of the support sheet. , the disposable diaper has an elastic member fixed along an edge of the support sheet and forming a waist seal of the disposable diaper, and a longitudinal extension portion of the elastic member has an elastic member attached to the waist seal. A waist tab is formed integral with the seal and made of the same material as the elastic member, and the waist seal is configured to attach the disposable diaper to a user and adjust the tension thereof. ,
The disposable diaper, wherein the elastic member and the waist tab are configured to apply equal pressing force to the waist of the user. 2. The disposable diaper according to claim 1, wherein the elastic member is watertight and forms a fluid barrier. 3. The disposable diaper of claim 1, wherein the upper sheet and the support sheet are joined to each other along their peripheries and outside the waist seal. 4. The disposable diaper according to claim 1, wherein the upper sheet is heat sealed to the support sheet. 5. The disposable diaper according to claim 1, wherein the absorbent pad has an hourglass shape,
The disposable diaper also has ears separated from the area. 6. The disposable diaper according to claim 1, wherein an adhesive is applied to the waist tab.