Title:
LIQUID IMPERMEABLE BACK SHEET FOR SANITARY NAPKIN
Document Type and Number:
Japanese Patent JP3510136
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid-impermeable back sheet capable of keeping the air permeability and preventing the leakage of body fluid.
SOLUTION: A liquid-impermeable back sheet 1 for sanitary napkin having an upper surface 2 and a lower surface 3, and made of a thermoplastic synthetic resin, has a large number of independent recessed zones 4 downwardly recessed from the lower surface 3, and a smooth plain zone 5 excluding the recessed zones 4, and each recessed zone 4 has at least one pore 6 penetrating through the sheet 1 on an area excluding a peripheral edge 7 of the zone 4.
Inventors:
Sugimura, Tatsu
Igaue, Takamitsu
Imai, Shigeo
Igaue, Takamitsu
Imai, Shigeo
Application Number:
JP5548799A
Publication Date:
March 22, 2004
Filing Date:
March 03, 1999
Export Citation:
Assignee:
UNI CHARM CORP
International Classes:
A61F13/49; A61F5/44; A61F13/15; A61F13/20; A61F13/511; A61F13/514; A61F13/53; B29C59/14; B32B3/00; B32B3/10; B32B3/12; B32B3/26; B32B3/30; (IPC1-7): A61F13/49; A61F5/44; A61F13/15; A61F13/514
Attorney, Agent or Firm:
白浜 吉治
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