Ammonia processing of fabrics

Details Ammonia processing of fabrics Ammonia processing of fabrics

1978-03-06

1979-05-08

Coe, Philip R.

Textiles: fluid treating apparatus

Machines

With gas, steam or mist treating

68 191, D06M 102

Patent

active

041529073

ABSTRACT:
The disclosure relates to equipment and techniques for the removal from fabrics of excess residual ammonia, remaining in the fabric after liquid ammonia processing. The process involves contacting the opposed surfaces of the fabric with a thin film of water, followed by removal of the water from the fabric. The amount of water which contacts the fabric is insufficient to wet the fabric, so that it does not require a subsequent drying step, but is sufficient to release most of the residual ammonia, causing the ammonia to be extracted from the fabric. To advantage, the thin film of water is achieved by condensation of steam on chilled rollers.

REFERENCES:
patent: 1058459 (1913-04-01), Petzold
patent: 2769685 (1956-11-01), Cowles et al.
patent: 3079699 (1963-03-01), Fry
patent: 3589030 (1971-06-01), Troope et al.
patent: 3664158 (1972-05-01), Skaathun et al.
patent: 3915632 (1975-10-01), Troope et al.
patent: 4051699 (1977-10-01), Carpenter

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