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Title:
LAMINATED NONWOVEN STRUCTURE
Document Type and Number:
Japanese Patent JPH0768686
Kind Code:
A
Abstract:

PURPOSE: To obtain a nonwoven structure enhanced in peel strength and flexibility and good in water absorbability, bacteria barrier properties and water resistance, in spotted fusion areas where extremely fine thermoplastic fibers and natural fibers are fused, by embedding the natural fibers positioned on at least the boundary surface of a nonwoven fabric layer in the molten parts of the extremely fine fibers to fix them.

CONSTITUTION: A laminated nonwoven structure is formed by laminating a nonwoven fabric layer composed of extremely fine thermoplastic fibers with single fiber finness of 0.2 denier or less and a nonwoven fabric layer wherein natural fibers 2 are mechanically entangled each other and has spotted fusion areas where the extremely fine fibers and the natural fibers 2 are fused. The natural fibers 2 positioned on at least boundary surface of both nonwoven fabric layers are fixed in the spotted fusion areas in the state embedded in the molten parts 1 of the extremely fine fibers. Further, the areal ratio of all spotted fusion areas to the total surface area of the nonwoven structure is pref. set to 2-40% and the density of the spotted fusion areas is set to 7-80/cm2 and the air permeability thereof is set to 50cc/cm2/sec or less.


Inventors:
YAMAGUCHI SO
MURASE SHIGEMITSU
MIYAHARA YOSHIMOTO
Application Number:
JP24054793A
Publication Date:
March 14, 1995
Filing Date:
August 31, 1993
Export Citation:
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Assignee:
UNITIKA LTD
International Classes:
B32B5/26; B32B7/04; D04H1/498; D04H3/14; D04H5/06; (IPC1-7): B32B5/26; B32B7/04; D04H1/46; D04H3/14; D04H5/06