Improvements in or relating to yarns, threads and the like containing staple fibre made of or containing an organic derivative of cellulose

Abstract

Abstract 445,645. Yarns. BRITISH CELANESE, Ltd., 22, Hanover Square, London. April 2, 1935, No. 10221. Convention date, April 5, 1934. [Class 120 (iii)] Yarns containing staple fibres are produced by cutting filaments made of or containing organic derivatives of cellulose, loading the materials with a water-insoluble compound of a metal without substantially affecting the lustre of the materials, and spinning the fibres resulting from the cutting operation, the loading being effected before or after cutting and before spinning. The insoluble compound fixed in the materials is preferably a tin compound, e.g. tin phosphate and the filaments may be loaded in hank form prior to cutting them into fibres. The weighted artificial staple fibres may be mixed with natural fibres and spun into yarn and the fibres may be dyed the same colour with a single dyestuff. When the materials are weighted before cutting, the filaments may be formed into bands or groups and crimped in accordance with Specification 441,042 and thereafter cut into staple lengths or they may be treated and cut to staple lengths without crimping by the process described in Specification 433,110 ; the weighting may also be effected by immersing the loosely grouped cut fibres in the weighting bath. Specifications 270,987, 272,982, 281,084, 284,798, 285,941 and 309,876, [all in Class 120 (iii)], and U.S.A. Specifications 1,631,062, 1,731,298 and 1,798,836 also are referred to.

Inventors

No inventors recorded.

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