Surface-modified cellulose acetate filaments and a process for p

Details Surface-modified cellulose acetate filaments and a process for p Surface-modified cellulose acetate filaments and a process for p

1978-12-07

1981-02-24

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

8131, 264 41, 264 456, 264340, 264343, 428398, B29C 2500, D02G 300

Patent

active

042528550

ABSTRACT:
Surface-modified cellulose acetate filaments having a microporous structure located in the peripheral surface layer thereof are prepared by bringing non-modified cellulose acetate filaments which have an average degree of acetylation of 50 to 62% into contact with an organic solvent which is capable of dissolving or swelling the non-modified filaments and by rapidly evaporating the solvent from the filaments. The microporous structure causes the surface-modified filaments to exhibit a desirable silklike touch and an increased intensity in dye exhaustion of from 1.1 to 2.0 times that of the non-modified filaments.

REFERENCES:
patent: 1939244 (1933-12-01), Webber et al.
patent: 2088589 (1937-08-01), Ellis
patent: 2304632 (1942-12-01), Faelton
patent: 2312623 (1943-03-01), Brooks et al.
patent: 2376890 (1945-05-01), Alles
patent: 3167385 (1965-01-01), Mann et al.
patent: 3179484 (1965-04-01), Tessandori et al.
patent: 3520766 (1970-07-01), Newman
patent: 4008304 (1977-02-01), Koyama et al.

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