Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-12-18
1993-10-19
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428224, 428296, 428297, 428299, 428373, 428397, D04H 158
Patent
active
052543994
ABSTRACT:
A nonwoven fabric having excellent sheet formation comprises fibers of which diameter is 7 .mu.m or less and of which ratio of fiber length to fiber diameter (L/D) is in the range of 2000<L/D.ltoreq.6000, and optionally thermalbonding fibers, and the fibers being three-dimensionally entangled. A nonwoven fabric having excellent sheet formation comprises 10-90% by weight based on the weight of the nonwoven fabric of fibers of which diameter is 7 .mu.m or less and of which L/D is 2000 or less, 90-10% by weight based on the weight of the nonwoven fabric of fibers of which diameter is 7 .mu.m or less and of which ratio of fiber length to fiber diameter (L/D) is in the range of 2000<L/D.ltoreq.6000, and optionally thermalbonding fibers, the maximum pore size of the nonwoven fabric being 5 times the mean pore size or less, and the fibers being three-dimensionally entangled.
Matsuoka Masanobu
Oku Yasuyuki
Yamasaki Takeshi
Bell James J.
Mitsubishi Paper Mills Limited
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