| 摘要 |
1292423 Solvent dyeing FARBWERKE HOECHST AG 19 Jan 1971 [20 Jan 1970] 2583/71 Heading D1B Synthetic textile materials are dyed by impregnating with a dyebath solution or dispersion of an organic dyestuff in an halogenated methane or ethane derivative of the general formula R-F wherein R is FCl 2 ,C-CFCl-, Cl 3 C-, Cl 3 HC- or F 2 ClC-CFCl-, or mixtures thereof, and then fixing the dyeing by heat, optionally with an intermediate drying. An alcohol, ester, ketone, and/or halogenated hydrocarbon may be used in amounts of 1 to 50% by weight of the total solvent mixture as a secondary solvent. Preferably 0.1 to 5.0% by weight of a tenside based on the weight of solvent may be added. The textile materials include polyesters, polyamides, polypropylene, p.a.c., p.v.c. and cellulose-2¢ and 3-acetates or mixtures thereof with cellulose fibres or wool which are reserved. The Examples describe dyeing polyester and blends, with cotton or wool with disperse dye to give yellow, red, orange, brown, blue and grey shades.
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