Yarn dyeing process

Abstract

The invention provides a yarn dyeing process which includes the steps: firstly, placing yarns on a loosening cylinder to loosen the yarns; secondly, adding the yarns into alkaline liquor to whiten theyarns, and adding stabilizers; thirdly, adding acid to neutralize the whitened yarns, and washing the neutralized yarns; fourthly, stewing the washed yarns at high temperature; fifthly, primarily dyeing the yarns stewed at high temperature; sixthly, steaming the primarily dyed yarns; seventhly, secondarily dyeing the steamed yarns; eighthly, adding the secondarily dyed yarns into a color fixing agent to fix colors of the yarns; ninthly, dewatering and drying the yarns, and baking the yarns. According to the method, primary dye fixation of the yarns is implemented in a steaming manner after primarily dyeing of the yarns is implemented, secondary dye fixation of the yarns is implemented in a baking manner after secondary dyeing of the yarns is implemented, fastness of dyed colors of the yarns is improved, the color of the yarns cannot be easily faded, and the service lives of the yarns are prolonged.

Description

Technical field [0001] The invention relates to the field of yarn dyeing, in particular to a yarn dyeing process. Background technique [0002] At present, when the yarn is dyed, the yarn is usually dyed by dip-dyeing the yarn once or twice, but the color fastness of the yarn after dyeing is not high, and the yarn will fade after being used for a long time, which will affect the yarn. The use of the effect, so it becomes very important to solve this problem. Summary of the invention [0003] The purpose of the present invention is to provide a yarn dyeing process, through the first dip dyeing and steaming for the primary dye fixation, after the second dip dyeing and then adding the fixing agent to fix the color, after the fixation, dehydration, drying and baking are performed for the second time. The second fixation solves the problem that the color fastness of the dyed yarn is not high, which affects the use effect. [0004] The invention provides a yarn dyeing process, the dyein...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of yarn dyeing process, carry out primary dyestuff fixation by steaming after one-time dip-dyeing, add in the color-fixing agent to carry out color-fixation after second-time dip-dyeing, carry out second-time dyeing after dehydration drying and baking after color-fixation The secondary fixation solves the problem that the color fastness of the dyed yarn is not high and affects the use effect