Spinning apparatus having a tubular elastomeric flow control val

Details Spinning apparatus having a tubular elastomeric flow control val Spinning apparatus having a tubular elastomeric flow control val

1992-10-23

1994-04-05

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

425DIG19, 264182, 264187, 264203, D01D 508, D01F 618

Patent

active

052999262

ABSTRACT:
A novel spinning apparatus is provided with a tubular coagulating liquid flow control valve body made of an elastomeric material and whose inner diameter is changeable according to external pressure. The valve body has a simple structure and is easy to retrofit to a conventional spinning apparatus. When dope is extruded, a mass of dope with gelled skin can pass easily and quickly through the opened valve body so that the spinning workability at the start of spinning is high. Further, since the coagulating liquid flows smoothly, the spinning speed can be increased without damaging the filaments.

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patent: 4863662 (1989-09-01), Hasegawa et al.
patent: 5149480 (1992-09-01), Cuculo et al.

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