Disposable diaper with compressed units
AssigneeUnicharm Corporation
InventorsSatoru Sakaguchi, Kana Sawa
Life of this patent
Estimating the term…
Abstract
An absorber of a disposable diaper includes a first region extending from an end at the side of the rear waistline region of the absorber towards a side of the crotch region, and a second region arranged adjacent to the first region at the side of the crotch region from the first region, and having a lower bending rigidity than the first region. The end at the side of the rear waistline region of the leg stretch unit and the end at the side of the rear waistline region of the contracted unit in the leg side stretch unit are arranged at the side of the crotch region from the end at the side of the rear waistline region of the first region, and are also arranged at the side of the rear waistline region from the end at the side of the crotch region of the first region.
Claims14
A disposable diaper, comprising:
- a front waistline region;
- a rear waistline region;
- a crotch region positioned between the front waistline region and the rear waistline region;
- an absorber running across the crotch region and extending in the front waistline region and the rear waistline region;
- a product longitudinal direction from the front waistline region towards the rear waistline region;
- a product widthwise direction perpendicular to the product longitudinal direction;
- a pair of fastening tapes extending outwardly from the rear waistline region in the product widthwise direction, and being secured to the front waistline region;
- a pair of leg hole openings;
- a pair of leg stretch units each arranged around one of the leg hole openings and configured to expand and contract along at least the product longitudinal direction;
- and
- a pair of leg side stretch units arranged in the product widthwise direction between the leg stretch units, and each of the leg side stretch units having a contracted unit configured to expand and contract along the product longitudinal direction,
- wherein
- the absorber includes
- a first region extending from an end of the absorber at a side of the rear waistline region towards a side of the crotch region, and
- a second region arranged adjacent to the first region at the side of the crotch region, and having a lower bending rigidity than the first region,
- the first region has a rear end at the side of the rear waistline region and a front end at the side of the crotch region,
- ends of the leg stretch units at the side of the rear waistline region and ends of the contracted units at the side of the rear waistline region are arranged between the rear end of the first region and the front end of the first region in the product longitudinal direction, and
- the absorber has a plurality of compressed units arranged intermittently in the first region to increase the bending rigidity of the first region to be higher than the bending rigidity of the second region.
Dependencies are inferred from the claim text.