Title:
WATER-DISINTEGRABLE FIBER SHEET HAVING MULTILAYERED STRUCTURE
Document Type and Number:
Japanese Patent JP3640592
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve problems that the balance between water disintegrability and strength is not maintained in a cleaning sheet made of a water-disintegrable fiber sheet and flushed and disposed of in a conventional toilet, etc.
SOLUTION: This water-disintegrable fiber sheet has the multilayered structure. The surface layer comprises fibrillated rayons composed of a body part having a prescribed fiber length and microfibers extending from the body part and having ≤700 cc beating degree in an amount of ≥3 mass % in fibers constituting the surface layer. The microfibers extending from the fibrillated rayons are interlaced and/or hydrogen bonded with at least either of the microfibers and other fibers. The balance between the water disintegrability and the strength of the fiber sheet becomes excellent simply by adding a small amount of the fibrillated rayons.
Inventors:
Naoto Takeuchi
Kazuya Okada
Kazuya Okada
Application Number:
JP2000099451A
Publication Date:
April 20, 2005
Filing Date:
March 31, 2000
Export Citation:
Assignee:
UNI-CHARM CO.,LTD.
International Classes:
A47K10/16; A47K10/02; A47L13/16; B32B5/26; D04H1/26; D04H1/28; D04H1/4258; D04H1/492; D04H1/498; D21F11/04; D21F11/08; D21F11/14; D21H11/18; D21H13/08; D21H27/38; (IPC1-7): D04H1/04; D04H1/46; D21H13/08
Domestic Patent References:
| JP49001244B1 | ||||
| JP11241292A | ||||
| JP11226329A | ||||
| JP11152667A | ||||
| JP2001190469A |
Attorney, Agent or Firm:
野▲崎▼ 照夫