Material for absorbent article, method for manufacturing same, and absorbent article using same

Patent metadata

Field	Value
Publication number	US-11020290-B2
Application number	US-201615544440-A
Country	US
Kind code	B2
Filing date	Jan 19, 2016
Priority date	Jan 19, 2015
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

The present invention discloses a material for an absorbent article, the material having an organic hydrophobic antimicrobial agent and a hydrophilic non-volatile organic solvent. The material for an absorbent article is preferably manufactured by a method having a step of applying an antimicrobial agent solution to a material for an absorbent article, the antimicrobial agent solution being formed by dissolving an organic hydrophobic antimicrobial agent in a hydrophilic non-volatile organic solvent. The present invention also discloses an absorbent article in which the material for an absorbent article is used. The absorbent article is preferably manufactured by using a method having a step of making an absorbent core contain an antimicrobial agent solution formed by dissolving an organic hydrophobic antimicrobial agent in a hydrophilic non-volatile organic solvent.

First claim

The invention claimed is:

1. A material for an absorbent article, wherein the material comprises a sheet for an absorbent article,
the sheet containing (a) an organic hydrophobic antimicrobial agent, (b) a hydrophilic non-volatile organic solvent, said organic solvent being at least one member selected from the group consisting of ethylene glycol, propylene glycol, and butylene glycol, and (c) water in an amount of 8 to 10 mass %,
the sheet for an absorbent article comprises a substrate sheet, and the substrate sheet is a fiber sheet or a perforated sheet in which a plurality of through-holes are formed in a film.

2. A material for an absorbent article, the material comprising:
an organic hydrophobic antimicrobial agent;
a hydrophilic non-volatile organic solvent, said organic solvent being at least one member selected from the group consisting of ethylene glycol, propylene glycol, and butylene glycol; and
an absorbent core,
wherein the absorbent core contains pulp fibers, and the organic hydrophobic microbial agent and the organic solvent adhere to the absorbent core; and
the material for an absorbent article contains water in an amount of 8 to 10 mass %.

3. The material for an absorbent article according to claim 1 or claim 2 ,
wherein the organic hydrophobic antimicrobial agent is benzalkonium cetyl phosphate or piroctone olamine.

4. The material for an absorbent article according to claim 3 , wherein the material comprises a water-absorbent resin composition including the organic hydrophobic antimicrobial agent, the hydrophilic non-volatile organic solvent, and a water-absorbent resin.

5. The material for an absorbent article according to claim 4 , wherein the organic hydrophobic antimicrobial agent and the organic solvent discontinuously adhere to a surface of the water-absorbent resin.

Assignees

• Kao Corp

Inventors

• Tsuji Makoto
• Itoi Takashi
• Mori Ichiro
• Ishioka Satoshi
• Maeda Katsushi

Classifications

• A61F13/472

  specially adapted for female use · CPC title

• A61F13/8405

  Additives, e.g. for odour, disinfectant or pH control · CPC title

• B01J20/267 Primary

  Cross-linked polymers · CPC title

• A61F2013/8414

  with anti-microbic · CPC title

• A61L2300/404

  Biocides, antimicrobial agents, antiseptic agents · CPC title