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Polyester-cotton blended yarn dyeing process

A yarn dyeing and polyester-cotton blending technology is applied in the field of yarn dyeing and finishing, which can solve the problems of low dyeing uniformity of polyester-cotton blended yarns, improve dyeing quality and dyeing effect, save production water consumption, and reduce dyeing. effect of time

Inactive Publication Date: 2020-11-10
南通云花色织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem of low dyeing uniformity of polyester-cotton blended yarn, the application provides a dyeing process for polyester-cotton blended yarn

Method used

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  • Polyester-cotton blended yarn dyeing process
  • Polyester-cotton blended yarn dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] refer to figure 1

[0041] A kind of polyester-cotton blended yarn dyeing process comprises the steps:

[0042] S1. Yarn pretreatment, the yarn is transported through the unwinding mechanism to the pretreatment solution for soaking. The pretreatment solution includes 3 parts of pectinase, 4 parts of α-amylase, 4 parts of hydrogen peroxide, 0.5 parts of sodium silicate, 1 Parts of anionic penetrant OEP-98, 0.5 part of cocamidopropyl hydroxy sultaine, 65 parts of deionized water, pH is 7, temperature of pretreatment solution is 75°C, treatment time is 30min; Use ultrasonic waves to continuously ultrasonically vibrate the yarn;

[0043] S2, washing and drying, cleaning the yarn that has completed the pretreatment of step S1, and drying the yarn to a moisture content of 2%;

[0044]S3, one-time dyeing, add 1.5g / L disperse dye leveling agent in the primary dyeing bathtub, the disperse dye leveling agent includes anionic disperse leveling agent and non-ionic disperse level...

Embodiment 2

[0050] refer to figure 1

[0051] A kind of polyester-cotton blended yarn dyeing process comprises the steps:

[0052] S1. Yarn pretreatment, the yarn is transported through the unwinding mechanism to the pretreatment solution for soaking. The pretreatment solution includes 4 parts of pectinase, 6 parts of α-amylase, 5 parts of hydrogen peroxide, 0.7 part of sodium silicate, 1.5 1 part of anionic penetrant OEP-98, 0.7 part of cocamidopropyl hydroxy sultaine, 70 parts of deionized water, pH 7.5, pretreatment liquid temperature 80 ℃, treatment time 35 minutes; yarn soaking process Use ultrasonic waves to continuously ultrasonically vibrate the yarn;

[0053] S2, washing and drying, the yarn that has completed the pretreatment of step S1 is cleaned, and the yarn is dried to a moisture content of 2.5%;

[0054] S3, one-time dyeing, add 2g / L disperse dye leveling agent in the primary dyeing bathtub, the disperse dye leveling agent includes anionic disperse leveling agent and non...

Embodiment 3

[0060] refer to figure 1

[0061] A kind of polyester-cotton blended yarn dyeing process comprises the steps:

[0062] S1. Yarn pretreatment, the yarn is transported through the unwinding mechanism to the pretreatment solution for soaking. The pretreatment solution includes 5 parts of pectinase, 7 parts of α-amylase, 6 parts of hydrogen peroxide, 0.9 parts of sodium silicate, 2 parts of 1 part of anionic penetrant OEP-98, 0.9 part of cocamidopropyl hydroxysulfobetaine, 80 parts of deionized water, pH 8, pretreatment liquid temperature 80 ℃, treatment time 45 minutes; yarn soaking process Use ultrasonic waves to continuously ultrasonically vibrate the yarn;

[0063] S2, washing and drying, cleaning the yarn that has completed the pretreatment of step S1, and drying the yarn to a moisture content of 3%;

[0064] S3, one-time dyeing, add 2.5g / L disperse dye leveling agent in the primary dyeing bathtub, the disperse dye leveling agent includes anionic disperse leveling agent an...

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Abstract

The invention relates to the technical field of yarn dyeing and finishing, and particularly discloses a polyester-cotton blended yarn dyeing process. The polyester-cotton blended yarn dyeing process comprises the following steps of S1, performing yarn pretreatment; S2, performing washing and drying; S3, performing primary dyeing: adding 1.5-3 g / L of a disperse dye leveling agent into a primary dyeing bathtub, performing heating to 75 DEG C, adding a disperse dye, then performing heating to 85 DEG C, sending the washed and dried yarns into primary dyeing liquid for dip dyeing at a bath ratio of1: (9-11), and performing heat preservation dyeing for 45-55min; S4, performing reduction cleaning; S5, performing secondary dyeing, wherein the bath ratio is 1: (9-11), the temperature is increasedto 75-85 DEG C, heat preservation is performed for 18-22 min, then the temperature is increased to 90 DEG C, heat preservation dyeing is performed for 30-35 min, and secondary dyeing liquid is activedyeing liquid; S6, performing soaping; and S7, performing dehydration and drying, wherein pretreatment liquid comprises the following components in parts by weight: 3-6 parts of pectinase, 4-8 parts of alpha-amylase, 4-7 parts of hydrogen peroxide, 0.5-1 part of sodium silicate, 1-3 parts of a penetrant, 0.5-1 part of cocamidopropyl hydroxy sulfobetaine and 65-85 parts of deionized water. The method has the advantages of effectively improving the dyeing uniformity of the cotton-polyester blended yarns and improving the yarn quality.

Description

technical field [0001] The invention relates to the technical field of yarn dyeing and finishing, more specifically, it relates to a polyester-cotton blended yarn dyeing process. Background technique [0002] Polyester-cotton blended fabrics are widely used in clothing and home textile bedding fabrics because of their bright and diverse colors and good wearability. Cotton fiber has high hygroscopicity and good skin-friendly properties; polyester has high strength, elasticity close to that of wool, and better wrinkle resistance than other fibers, so polyester-cotton fiber blending can improve the resilience and strength of fabrics. However, since there is no specific dyeing group on the polyester fiber molecular chain, and polyester is highly hydrophobic, it is difficult for dye molecules to combine with fibers during dyeing, resulting in poor dyeability of polyester. [0003] At present, the dyeing and finishing of polyester-cotton blended fabrics mainly adopts the two-bath...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/38D06P1/00D06P1/44D06P1/673D06P3/872D06P5/02
CPCD06P1/16D06P1/38D06P1/0032D06P1/445D06P1/673D06P1/67383D06P3/8252D06P5/02
Inventor 顾玉祥
Owner 南通云花色织有限公司
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