Absorbent article
AssigneeUni-Charm Corporation
InventorsQiye Yang, Koichiro Mitsui
Life of this patent
Estimating the term…
Abstract
An absorbent article includes a liquid-pervious sheet, an outer covering sheet, and an absorbent structure sandwiched between the liquid-pervious sheet and the outer covering sheet. The absorbent structure includes a liquid-absorbent mixture composed of super-absorbent polymer particles and fluff pulp and nonwoven fabric sheet formed from long fibers of thermoplastic resin. The nonwoven fabric sheet is put in contact, along at least one surface thereof, with the liquid-absorbent mixture and has cross points at which the long fiber sealed together, and a nap height defined by a difference between a thickness measured before a napping test and a thickness measured after the napping test is at least 0.5 mm.
Claims10
An absorbent article, comprising:
- a liquid-pervious sheet;
- an outer covering sheet facing said liquid-pervious sheet;
- an absorbent structure sandwiched between said liquid-pervious sheet and said outer covering sheet,
- said absorbent structure includes
- a liquid-absorbent mixture including super-absorbent polymer particles and fluff pulp, and
- a nonwoven fabric sheet including thermoplastic resin fibers which are bonded together at a cross-points thereof;
- said nonwoven fabric sheet has naps in direct contact with said liquid-absorbent mixture without direct bonding to the liquid-absorbent mixture,
- a nap height of the naps defined by a difference between a first thickness of the naps measured before a napping test and a second thickness of the naps measured after the napping test is at least 0.5 mm, and
- the naps of the nonwoven fabric sheet are below the liquid-absorbent mixture.
An absorbent article, comprising:
- a liquid-pervious sheet;
- an outer covering sheet facing said liquid-pervious sheet;
- an absorbent structure sandwiched between said liquid-pervious sheet and said outer covering sheet,
- said absorbent structure includes
- a liquid-absorbent mixture including super-absorbent polymer particles and fluff pulp, and
- a nonwoven fabric sheet including thermoplastic resin fibers which are bonded together at a cross-points thereof;
- said nonwoven fabric sheet has naps in direct contact with said liquid-absorbent mixture without direct bonding to the liquid-absorbent mixture, and
- the naps are between the liquid-absorbent mixture and the outer covering sheet.
Dependencies are inferred from the claim text.