Method of forming a nonwoven web from a surface-segregatable the

Details Method of forming a nonwoven web from a surface-segregatable the Method of forming a nonwoven web from a surface-segregatable the

1988-04-14

1989-08-15

Lorin, Hubert

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

156167, 2642106, 2642108, 264211, 26421117, 264234, 264345, 264518, 264555, D04H 300, D02J 300, D02J 1300

Patent

active

048572519

ABSTRACT:
A nonwoven web is prepared by the method of forming a nonwoven web from a composition composed of at least one thermoplastic polymer and at least one defined siloxane-containing additive, which method involves the steps of (A) forming fibers by extruding a molten thermoplastic composition through a die; (B) drawing the fibers; (C) collecting the fibers on a moving foraminous surface as a web of entangled fibers; and (D) heating the web at a temperature of from about 27.degree. to about 95.degree. C. for a period of time sufficient to cause additional additive to move to the surfaces of the fibers. The method of the present invention is particularly useful for the preparation of nonwoven webs, the fibers of which have at least one surface characteristic which is different from the surface characteristics of the polymer component of the thermoplastsic composition. Such webs, in turn, are useful in the construction of such disposable absorbent products as diapers, feminine care products, incontinence products, and the like.

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