Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Gas or vapor
Patent
1984-08-07
1986-02-25
Coe, Philip R.
Bleaching and dyeing; fluid treatment and chemical modification
Fluid treatment
Gas or vapor
28266, 68 5E, D06B 302, D06B 2304, D06B 2318
Patent
active
045717656
ABSTRACT:
A bundle of fibers fed from a stuffer box longitudinally in a corrugated form is wrapped with a breathable heat resistant fabric to form a continuous belt-like shape and then introduced into and drawn out of a thermal treatment region by the aid of inlet and outlet ducts and guide channel in a heat-treatment chamber into which is supplied a heating medium comprising one of non-condensable gas, superheated steam, and a mixture of said non-condensable gas and said superheated steam. The chamber includes a high-pressure portion and a low-pressure portion disposed on opposite sides of the guide channel. The heating medium flows longitudinally along the inlet and outlet ducts in opposite directions towards outsides and transversely from the high-pressure portion to the low-pressure portion across the guide channel, whereby the fibers wrapped with the breathable heat resistant fabric is thermally treated. The heating medium used for the thermal treatment is recirculated into the high-pressure portion after having been pressurized and heated.
REFERENCES:
patent: 2060634 (1936-11-01), Otis
patent: 2838420 (1958-06-01), Valente
patent: 3763527 (1973-10-01), Yazawa
patent: 4286394 (1981-09-01), Gort
patent: 4299036 (1981-11-01), Schregenberger
Kojima Shigezo
Okada Tokio
Tani Haruhisa
Coe Philip R.
Polymer Processing Research Institute Ltd.
The Bouligny Company
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