Disposable diaper
AssigneeLivedo Corporation
InventorsKenji Nakaoka, Yuki Takahashi, Emi Amano
Life of this patent
Estimating the term…
Abstract
An outer covering sheet (4) of a pants-type disposable diaper (1) has a front part and a back part (403) to be positioned on a front side and a back side of a wearer, and a middle part lying between the front and back parts. An absorbent body (20) is attached on the outer covering sheet (4) to absorb excrement from the wearer. Both end portions of the absorbent body, positioned in the front part and the back part (403), are folded toward the inner surface (40) of the outer covering sheet (4) and bonded on the inner surface (40). It is therefore possible to prevent skin of the wearer from being irritated by edges (241) of the end portions of the absorbent body (20) when the disposable diaper (1) is worn.
Claims16
A pants-type disposable diaper which has a waist opening at an upper end and a pair of leg openings on a lower part, comprising:
- an outer covering sheet which is folded in a middle part lying between a front part and a back part, said front part and said back part being adapted to be positioned on a front side and a back side of a wearer, left and right ends of said front part being bonded to left and right ends of said back part, respectively, to form a waist opening at upper ends of said front part and said back part and form a pair of leg openings under said front part and said back part, said pair of leg openings being located left and right of said middle part;
- and
- a sheet-like absorbent body having a top sheet, a back sheet and an absorbent core which is located between said top sheet and said back sheet,
- said absorbent body being attached on an inner surface of said outer covering sheet to contact with the wearer and absorb excrement from the wearer, said absorbent body extending from said front part to said back part,
- said back sheet being positioned between said inner surface of said outer covering sheet and said absorbent core, said top sheet being positioned on an inner surface of said absorbent core, wherein:
- portions of said back sheet and said top sheet protrude beyond an end of said absorbent core in a longitudinal direction of said absorbent body, and said portions of said back sheet and said top sheet are bonded to each other to form a bonded end portion;
- said bonded end portion of said absorbent body, which is positioned in said front part or said back part, is folded so as to lie between said inner surface of said outer covering sheet and said absorbent core, and said top sheet of said bonded end portion is bonded to said inner surface of said outer covering sheet;
- and
- an edge of said bonded end portion, formed by edges of said top sheet and said back sheet of said absorbent body, is positioned between said inner surface of said outer covering sheet and an outer surface of said back sheet of said absorbent body.
Dependencies are inferred from the claim text.