Wearing article

Patent metadata

Field	Value
Publication number	US-9283124-B2
Application number	US-201314404976-A
Country	US
Kind code	B2
Filing date	Sep 17, 2013
Priority date	Sep 28, 2012
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

In a wearing article including front and rear waist panels and a crotch panel, a pair of leg sheets including backing sheets and leg elastics attached under tension between two layers of the respectively doubled up backing sheets extends along lateral edge portions of the crotch panel, and distal end portions of the leg sheets are attached to respective skin-facing surfaces of the front and rear waist panels through first and second joint regions. In this way, the pair of leg sheets has an elastically contractible region between the first and second joint regions and elastically relaxed regions in end portions located outboard of the first and second joint regions in a longitudinal direction, and the elastically relaxed regions are formed on surfaces thereof with gathers.

First claim

The invention claimed is:

1. A wearing article having a longitudinal direction and a transverse direction being orthogonal to the longitudinal direction, the wearing article comprising:
a skin-facing surface;
a non-skin-facing surface lying on a side opposite to the skin-facing surface;
front and rear waist panels respectively defining front and rear waist regions;
a crotch panel defining a crotch region lying between the front and rear waist regions; and
an absorbent structure disposed on the skin-facing surface of at least the crotch panel, wherein:
the crotch panel has
front and rear end portions extending in the transverse direction,
lateral edge portions extending in the longitudinal direction, and
a pair of leg sheets extending along the lateral edge portions;

each of the leg sheets includes a backing sheet and at least one leg elastic attached under tension to the backing sheet so as to extend in the longitudinal direction;
each of the leg sheets is attached to the skin-facing surfaces of the front and rear waist panels through first and second joint regions, respectively;
each of the leg sheets has an elastically contractible region lying between the first and second joint regions;
each of the leg sheets has elastically relaxed regions in end portions located outboard of the first and second joint regions in the longitudinal direction, and the elastically relaxed regions are formed on surfaces thereof with gathers; and
the front and rear waist panels are respectively disposed with cover sheets adapted to cover the respective elastically relaxed regions which are not directly attached to the front and rear waist panels.

2. The wearing article according to claim 1 , wherein the cover sheets are not attached to the elastically relaxed regions.

3. A wearing article having a longitudinal direction and a transverse direction being orthogonal to the longitudinal direction, the wearing article comprising:
a skin-facing surface;
a non-skin-facing surface lying on a side opposite to the skin-facing surface;
front and rear waist panels respectively defining front and rear waist regions;
a crotch panel defining a crotch region lying between the front and rear waist regions; and
an absorbent structure disposed on the skin-facing surface of at least the crotch panel, wherein:
the crotch panel has
front and rear end portions extending in the transverse direction,
lateral edge portions extending in the longitudinal direction, and
a pair of leg sheets extending along the lateral edge portions;

each of the leg sheets includes a backing sheet and at least one leg elastic attached under tension to the backing sheet so as to extend in the longitudinal direction;
each of the leg sheets is attached to the skin-facing surfaces of the front and rear waist panels through first and second joint regions, respectively;
each of the leg sheets has an elastically contractible region lying between the first and second joint regions;
each of the leg sheets has elastically relaxed regions in end portions located outboard of the first and second joint regions in the longitudinal direction, and the elastically relaxed regions are formed on surfaces thereof with gathers; and
at least one of the front and rear waist panels has a waist sheet folded inwardly to cover the elastically relaxed regions.

4. A wearing article having a longitudinal direction and a transverse direction being orthogonal to the longitudinal direction, the wearing article comprising:
a skin-facing surface;
a non-skin-facing surface lying on a side opposite to the skin-facing surface;
front and rear waist panels respectively defining front and rear waist regions;
a crotch panel defining a crotch region lying between the front and rear waist regions; and
an absorbent structure disposed on the skin-facing surface of at least the crotch panel, wherein:
the crotch panel has
front and rear end portions extending in the transverse direction,
lateral edge portions extending in the longitudinal direction, and
a pair of leg sheets extending along the lateral edge portions;

each of the leg sheets includes a backing sheet and at least one leg elastic attached under tension to the backing sheet so as to extend in the longitudinal direction;
each of the leg sheets is attached to the skin-facing surfaces of the front and rear waist panels through first and second joint regions, respectively;
each of the leg sheets has an elastically contractible region lying between the first and second joint regions;
each of the leg sheets has elastically relaxed regions in end portions located outboard of the first and second joint regions in the longitudinal direction, and the elastically relaxed regions are formed on surfaces thereof with gathers;
each of the leg sheets includes a plurality of leg elastics interposed and attached under tension between two layers of the respective doubled up backing sheet; and
at least one of the front and rear waist panels has a waist sheet folded inwardly to cover the elastically relaxed regions.

Assignees

• Unicharm Corp

Inventors

• Hashimoto Tatsuya
• Okubo Tetsuo

Classifications

• A61F13/496

  in the form of pants or briefs · CPC title

• A61F2013/49092

  comprising leg cuffs · CPC title

• A61F2013/49042

  with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length · CPC title

• A61F13/4942

  the barrier not being integral with the top- or back-sheet · CPC title

• A61F13/49017 Primary

  the elastic means being located at the crotch region · CPC title