Method for washing continuously moving yarn

Details Method for washing continuously moving yarn Method for washing continuously moving yarn

1975-06-03

1978-02-28

Schulz, William E.

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Removing formation impurities from artifical fiber

81512, 264197, D01F 1100

Patent

active

040764990

ABSTRACT:
A method for washing continuously moving freshly formed rayon yarn, which relates to the production of rayon yarn used in textile industry.
The method for washing rayon yarn consists in that yarn is washed in two successive steps. During the first step, the yarn is dipped into a bath filled with warm water having a temperature of 30.degree. to 45.degree. C and a pH of 1.5 to 2.5. During the second step, the yarn is sprinkled with water having a pH of 7.0 to 7.5 and a temperature of 50.degree. to 75.degree. C.
The method of this invention allows removing from the yarn all admixtures in a minimum of time and with a minimum of water, as well as raising the operating efficiency of spinning machines requiring no increase in their size.

REFERENCES:
patent: 2237844 (1941-04-01), Ridgeway
patent: 2326150 (1943-08-01), MacLaurin
patent: 2427993 (1947-09-01), McLellan
patent: 2647040 (1953-07-01), O'Brien et al.
patent: 3046085 (1962-07-01), Burroughs et al.
patent: 3415611 (1968-12-01), Callahan et al.
patent: 3529052 (1970-09-01), Carney et al.
patent: 3725523 (1973-04-01), Bowen

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