Soft water-permeable polyolefins nonwovens having opaque charact

Details Soft water-permeable polyolefins nonwovens having opaque charact Soft water-permeable polyolefins nonwovens having opaque charact

1988-10-21

1989-09-19

McCamish, Marion C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

1563084, 428286, 428288, 428296, 428397, B32B 2714

Patent

active

048680311

ABSTRACT:
A method for controlling opacity, softness, and strength of polyolefin fiber-containing nonwoven material and corresponding nonwoven material, obtained by utilizing at least 25%, based on web weight, of polyolefin filament (a) having an original spun denier not exceeding about 24 dpf, (b) having a final drawn denier of not less than about 1 dpf, and (c) delta, diamond, or mixed delta and diamond cross-sectional configurations alone or combined with fiber having round or other cross sectional configuration.

REFERENCES:
patent: 3352778 (1967-11-01), Brink et al.
patent: 3630816 (1971-12-01), Parker
patent: 3676540 (1972-07-01), Story
patent: 3860679 (1975-01-01), Shermadin
patent: 3903348 (1975-09-01), Brewater et al.

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