Composite nonwoven fabric

Details Composite nonwoven fabric Composite nonwoven fabric

1993-06-22

1994-03-29

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

428284, 428286, 428287, 428297, 428299, 428904, 4289044, 428913, B32B 506

Patent

active

052983153

ABSTRACT:
A composite nonwoven fabric comprising a staple fiber nonwoven fabric A constituted with a staple fiber of 0.3 denier or less and a staple fiber of 0.5 denier or more, the content of which is determined to a specific value, and a filament nonwoven fabric B. With regard to the fiber arrangement of the staple fiber in the staple fiber nonwoven fabric A, the proportion of a parallel component thereof against a surface of the nonwoven fabric is high, and the staple fiber nonwoven fabric A and the filament nonwoven fabric B are interlaced with each other near the boundary area therebetween, and the staple fiber of the staple fiber nonwoven fabric A is not deeply inserted. The composite nonwoven fabric has superior air permeability and water resistance and when deformation caused by bending or compression occurs, a leakage of liquid is not likely to occur.

REFERENCES:
patent: Re31601 (1984-06-01), Ikeda et al.
patent: 3451885 (1969-06-01), Klein
patent: 4190695 (1980-02-01), Niederhauser
patent: 4426421 (1984-01-01), Nakamae et al.
patent: 4442161 (1984-04-01), Hirayoglu et al.
patent: 4476186 (1984-10-01), Kato et al.
patent: 4612228 (1986-09-01), Kato et al.
patent: 4879170 (1989-11-01), Radwanski et al.
patent: 4939016 (1990-07-01), Radwanski et al.
patent: 5175042 (1992-12-01), Chomarat

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