Disposable wearing article

• US 6,306,122 B1
• Filed: 04/21/1998
• Issued: 10/23/2001
• Est. Priority Date: 04/21/1997
• Status: Expired due to Fees

• Current Assignee: KAO Corporation
• Original Assignee: KAO Corporation
• Inventors: Machida, Yoshinobu, Nemoto, Ken, Narawa, Mika, Takei, Shinobu, Toyoda, Harumitsu
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): KIDWELL, MICHELE M
• Application Number:
  US09/063,046
• Time in Patent Office: 1,281 Days
• Field of Search: 604/385.1, 604/393, 604/385.29, 604/385.3, 604/385.31
• US Class Current: 604/385.3
• CPC Class Codes: A61F 13/49011 the elastic means is located at the waist region
• CPC Class Codes: A61F 13/496 in the form of pants or briefs

Abstract

A disposable wearing article including a liquid-permeable topsheet, an outermost layer sheet located on an outer surface of the disposable wearing article, and a liquid retentive absorbent member, a waist-surrounding elastic member being arranged at a waist-surrounding portion, wherein the waist-surrounding elastic member is fixed to other members than the outermost layer sheet in an expanded state to thereby form gathers inwardly of the outermost layer sheet, a non-bonding area is provided between the waist-surrounding elastic member and the outermost layer sheet, and no gathers are formed on an outer surface of the waist-surrounding portion.

Claims

1. A disposable wearing article comprising:

a liquid-permeable topsheet;

an outermost layer sheet;

a liquid retentive absorbent member;

a waist portion elastic member arranged at a waist opening portion, said waist opening portion being located at a waist edge of said disposable wearing article; and

a waist-surrounding elastic member arranged at a waist-surrounding portion, said waist-surrounding portion being located adjacent said waist opening portion said waist-surrounding elastic member being fixed to members other than said outermost layer sheet in an expanded state to thereby form gathers inwardly of said outermost layer sheet;

wherein a non-bonding area is provided between said waist-surrounding elastic member and said outermost layer sheet, and no gathers are formed on an outer surface of said waist-surrounding portion.

3. A disposable wearing article according to claim 1 further comprising a liquid-impermeable backsheet and an inner layer sheet,

said absorbent member being interposed between said topsheet and said backsheet, said inner layer sheet on which said absorbent member is placed being disposed on an inner surface side of said backsheet, and

said waist-surrounding elastic member being disposed on an inner surface side of said backsheet.

4. A disposable wearing article according to claim 1 further comprising a liquid-impermeable backsheet and an outer layer sheet;

said absorbent member being interposed between said topsheet and said backsheet;

said outer layer sheet being disposed between said backsheet and said outermost layer sheet; and

said waist-surrounding elastic member being firmly secured, directly or through another sheet to said outer layer sheet.

5. A disposable wearing article according to claim 1, further comprising a diaper body including said topsheet, a liquid-impermeable backsheet, and said absorbent member interposed therebetween, and one pair of left and right waist belt portions for connecting a front body and a back body of said diaper body together;

and

said waist belt portions each comprising an inner surface sheet located in an innermost position, said outermost layer sheet located in an outermost position, an intermediate sheet located between said inner surface sheet and said outermost layer sheet, and a waist-surrounding elastic member firmly fixedly held between said inner surface sheet and said intermediate sheet, said intermediate sheet and said outermost layer sheet not being [not] bonded together, and no gathers being formed on said outermost layer sheet.

6. The disposable wearing article according to claim 1, wherein the waist portion elastic member is located and fixed between the outermost layer sheet and an inner layer sheet.

7. The disposable wearing article according to claim 1, wherein said waist portion elastic member is located outside of an edge of said liquid retentive absorbent member such that said liquid retentive absorbent member and said waist portion elastic member are arranged in non-overlapping manner.

8. The disposable wearing article according to claim 1, wherein said waist-surrounding elastic member entirely surrounds a waist of a wearer when in use.

9. The disposable wearing article according to claim 1, wherein said waist-surrounding portion is located immediately below said waist opening portion.

2. A disposable wearing article comprising:

a liquid-permeable top sheet;

a liquid-impermeable backsheet;

an elastic member fixing sheet;

an inner layer sheet;

said absorbent member being interposed between said topsheet and said backsheet, said elastic member fixing sheet being disposed on an inner surface side of said backsheet, said inner layer sheet on which said absorbent member is placed being disposed on an inner surface side of said backsheet;

an outermost layer sheet;

a liquid retentive absorbent member;

a waist-surrounding elastic member arranged at a waist-surrounding portion, said waist-surrounding elastic member being fixed to members other than said outermost layer sheet in an expanded state to thereby form gathers inwardly of said outermost layer sheet;

said waist-surrounding elastic member being fixedly held between said inner layer sheet and said elastic member fixing sheet;

said backsheet not being bonded to a sheet located immediate to an inner surface thereof at an area where said waist-surrounding elastic member is present; and

wherein a non-bonding area is provided between said waistsurrounding elastic member and said outermost layer sheet, and no gathers are formed on an outer surface of said waist-surrounding portion.