Formation of nonwoven webs or batts from continuous filament tow

Textiles: fiber preparation – Stapilizing – Tension breaking

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19 048, 19 051, 19 34, D01G 108

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active

045148805

ABSTRACT:
A method and machine for forming nonwoven batts containing refractory fibers such as carbon, glass, ceramic or metallic fibers, includes a conveying table (12) provided with scalloped rollers (90, 92) which separate tows of filaments (16) and spread the filaments on a conveying table. A feed roller (80) holds the filaments on the table so that they are conveyed to a rotating lickerin (60). The lickerin (60) is provided with teeth (62) which grasp the filaments so that a tensile force is applied thereto, thereby breaking the filaments at structurally weak points in the filaments. The fibers are mixed with textile fibers and transferred to a foraminous condenser (144) by blowing the fibers through a duct (112). The fibers are arranged on the conveyor (114) in a random fashion to form a batt.

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patent: 3065614 (1962-11-01), Labino
patent: 3403425 (1968-10-01), Tajinia et al.
patent: 3789461 (1974-02-01), Nakano et al.
patent: 3918126 (1975-11-01), Wood
patent: 4355438 (1982-10-01), Reeves et al.

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