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One-bath one-step dyeing method for wool/cationic dyeable polyester fabric

A polyester fabric and dyeing method technology, applied in the field of textile printing and dyeing, can solve the problems of difficult dyeing, long dyeing cycle, and many technological processes, and achieve the effects of shortening the dyeing process, reducing dyeing time, and improving dyeing efficiency

Inactive Publication Date: 2019-10-15
苏州海曼纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester macromolecules lack functional groups that can combine with direct dyes, acid dyes, basic dyes, etc. Although they have ester groups that can form hydrogen bonds with disperse dyes, polyester has high crystallinity and compact structure, and dye molecules are not easy to enter the fiber. , resulting in difficult dyeing and monotonous color, which directly affects the development of new varieties of polyester fabrics
Therefore, for the dyeing method of traditional wool and cationic dyeable polyester fabric, the dyeing cycle is long, the efficiency is low, the process flow is many, the cost is increased, the wool texture after dyeing becomes poor, and the original characteristics are lost. Therefore, a wool / One-bath and one-step dyeing method of cationic dyeable polyester fabric

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A one-bath and one-step dyeing method for wool / cation dyeable polyester fabric, comprising the following steps:

[0024] S1: Prepare the pretreatment solution, perform pretreatment on the wool / cation dyeable polyester fabric according to the bath ratio of 1:50, carry out at room temperature, and the pretreatment time is 20 minutes;

[0025] S2: soaking the fabric in step S1 in hot water;

[0026] S3: soaking the fabric in step S2 in cold water;

[0027] S4: soak the fabric in step S3 in an acid dye containing cationic dye and pH=2, and simultaneously dye wool fiber and cationic dyeable polyester fiber at a temperature of 70° C. for 30 minutes;

[0028] S5: washing the fabric in step S4 at room temperature;

[0029] S6: Prepare a reduction cleaning solution, carry out reduction cleaning on the fabric in step S5 according to the bath ratio of 1:40, carry out at normal temperature, and the reduction cleaning time is 20min;

[0030] S7: Drying the fabric in step S6.

[...

Embodiment 2

[0039] A one-bath and one-step dyeing method for wool / cation dyeable polyester fabric, comprising the following steps:

[0040] S1: Prepare the pretreatment solution, perform pretreatment on the wool / cation dyeable polyester fabric according to the bath ratio of 1:50, carry out at room temperature, and the pretreatment time is 80 minutes;

[0041] S2: soaking the fabric in step S1 in hot water;

[0042] S3: soaking the fabric in step S2 in cold water;

[0043] S4: soak the fabric in step S3 in an acid dye containing cationic dye and pH=6, and simultaneously dye wool fiber and cationic dyeable polyester fiber at a temperature of 100° C. for 60 min;

[0044] S5: washing the fabric in step S4 at room temperature;

[0045] S6: Prepare a reduction cleaning solution, carry out reduction cleaning on the fabric in step S5 according to the bath ratio of 1:40, carry out at normal temperature, and the reduction cleaning time is 80min;

[0046] S7: Drying the fabric in step S6.

[004...

Embodiment 3

[0055] A one-bath and one-step dyeing method for wool / cation dyeable polyester fabric, comprising the following steps:

[0056] S1: Prepare the pretreatment liquid, perform pretreatment on the wool / cation dyeable polyester fabric according to the bath ratio of 1:50, carry out at room temperature, and the pretreatment time is 60 minutes;

[0057] S2: soaking the fabric in step S1 in hot water;

[0058] S3: soaking the fabric in step S2 in cold water;

[0059] S4: soak the fabric in step S3 in an acid dye containing cationic dye and pH=4, and simultaneously dye wool fiber and cationic dyeable polyester fiber at a temperature of 85° C. for 45 minutes;

[0060] S5: washing the fabric in step S4 at room temperature;

[0061] S6: Prepare a reduction cleaning solution, carry out reduction cleaning on the fabric in step S5 according to the bath ratio of 1:40, carry out at normal temperature, and the reduction cleaning time is 50min;

[0062] S7: Drying the fabric in step S6.

[00...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a one-bath one-step dyeing method for wool / cationic dyeable polyester fabric. The method comprises the following steps: preparing a pretreatment solution, pretreating the wool / cationic dyeable polyester fabric according to a bath ratio of 1:50 at normal temperature for 20-80 min; soaking the fabric in step S1 in hot water; soaking the fabric in step S2 in cold water; soaking the fabric in step S3 in acid dye containing cationic dye and having PH of 2-6, and dyeing wool fiber and cationic dyeable polyester fiber at 70-100 DEG C for 30-60 min simultaneously; washing the fabric in step S4 with water at room temperature. The cationic dyeable polyester fiber and wool are subjected to one-bath one-step dyeing, so that the method has the advantages of shortening the dyeingprocess, shortening dyeing time, improving dyeing efficiency, ensuring the original texture of the raw materials, and being strong in practicability, good in fixation effect, high in color fastness and suitable for dyeing of various colors.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a one-bath and one-step dyeing method for wool / cation dyeable polyester fabric. Background technique [0002] Polyester has the characteristics of high modulus, high-strength elasticity, good shape retention, and is not easy to wrinkle. It is an ideal textile material. However, polyester macromolecules lack functional groups that can combine with direct dyes, acid dyes, basic dyes, etc. Although they have ester groups that can form hydrogen bonds with disperse dyes, polyester has high crystallinity and compact structure, and dye molecules are not easy to enter the fiber. , resulting in dyeing difficulties and monotonous color, which directly affects the development of new varieties of polyester fabrics. Therefore, for the dyeing method of traditional wool and cationic dyeable polyester fabric, the dyeing cycle is long, the efficiency is low, the process flow ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06P3/874D06P1/39D06P1/41D06P1/44D06P1/673D06P5/08D06P5/10
CPCD06P1/39D06P1/41D06P1/445D06P1/6735D06P3/8214D06P5/08D06P5/10
Inventor 陈家传
Owner 苏州海曼纺织科技有限公司