// 2 TWO BATH DYEING METHOD FOR MODACRYLIC/META-ARAMID/COTTON BLENDED FIBERS

摘要

The present invention relates to a two-bath dyeing method of modacryl / meta-based aramid / cotton blend fibers, wherein the modacrylic / meta-aramid / cotton blend fibers are mixed with benzyl alcohol or nonionic aryl ethers or acetophenone type swelling agents, Dyeing, primary dyeing mixed with sodium nitrate and water, and then primary dyeing and cooling at 120-130 占 폚; Washing said primary stained blend fibers in an aqueous solution to which sodium hydrosulfite and sodium carbonate have been added; And washing the washed blended fibers with sodium sulfate, a reactive dye, a secondary salt solution obtained by mixing soda ash and water with water, heating to 60 to 80 캜, secondary dyeing, cooling, and washing. According to the present invention, meta-based aramid, modacrylic, and cotton fibers can be dyed in a high color without deterioration of fastness, and a method of mass-production without mass production can be provided. In addition, it has flame retardancy of meta-based aramid fiber, but it can mix with modacrylite and cotton fiber to minimize economic burden.