| abstract |
The invention discloses a kind of low-temperature dyeing methods of cashmere fibres, include the following steps：Step S1：Anti-shrinkage pretreatment includes：Albumen enzyme pretreatment, high temperature enzyme inactivation, potassium permanganate processing and reduction treatment.Step S2：Dye mixture solution is configured.Step S3：Fabric is impregnated in the mixed solution of ionic liquid and ethyl acetate, is placed in handling under cryogenic conditions, then heat up and keep the temperature, fabric is dried and taken out, then cleaned and dry.Step S4：Fabric obtained by step S3 is immersed in heating and heat preservation in dye mixture solution obtained by step S2, is cooled down after then heating up and keep the temperature again.Step S5：It takes out fabric to spontaneously dry, then repeatedly wash, dewatered drying, the cashmere fibres after must dyeing.In view of the deficiencies of the prior art, it is an object of the present invention to provide the low-temperature dyeing methods of cashmere fibres a kind of effective to cashmere fibres pretreatment and that low temperature dye-uptake is high. |