Method of drawing fibers using a microterraced drawing surface

Details Method of drawing fibers using a microterraced drawing surface Method of drawing fibers using a microterraced drawing surface

1974-07-01

1976-08-31

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

28 713, 264290T, B29C 1702

Patent

active

039781925

ABSTRACT:
Method and apparatus for drawing an elongated synthetic resin member (e.g., fiber, filament, yarn, tow or tape) at high speed. The fiber, or other member, is caused to follow a multiplicity of turns between canted, spaced-apart bodies, at least one of which has a drawing surface defined by a continuously increasing radius. A microterraced drawing surface topography on the latter body facilitates compact construction of the equipment and yields improvements in operation. The number of draw stages and the draw ratio are adjustable; and it is possible to bulk the fiber during drawing. Chemical and other physical treatments may be incorporated with the drawing.

REFERENCES:
patent: 2174688 (1939-10-01), Cotchett
patent: 2208497 (1940-07-01), Coleshill et al.
patent: 2736944 (1956-03-01), Herbert et al.

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