Yarn heat treatment apparatus

Details Yarn heat treatment apparatus Yarn heat treatment apparatus

1983-04-22

1985-02-19

Lowe, James

Plastic article or earthenware shaping or treating: apparatus

Means treating shaped work

264346, B29C 2500

Patent

active

045002789

ABSTRACT:
Aromatic polyamide filaments are treated at high speed under tension by passage over an array of closely spaced, heated rolls at 175.degree.-300.degree. C., the filaments stretched 0-1.6% and passed over a second array of additional closely spaced, heated rolls at 175.degree.-300.degree. C., cooled and wound up.

REFERENCES:
patent: 2807863 (1957-10-01), Schenker
patent: 3150435 (1964-09-01), McColm et al.
patent: 3739056 (1973-06-01), Evans et al.
patent: 3767756 (1973-10-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4111628 (1978-09-01), Taylor
patent: 4112668 (1978-09-01), Spiller
patent: 4298565 (1981-11-01), Yang

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