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A kind of dyeing process of dark polyester-cotton fabric

A polyester-cotton and fabric technology, which is applied to the dyeing process of dark polyester-cotton fabrics, can solve the problems of easy wrinkling, easy static electricity, poor dispersion effect, etc., and achieves simple components, high color fastness and uniform dyeing. Effect

Active Publication Date: 2021-01-15
福建石狮晨光化纤染织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Cotton fiber is a natural fiber, which has the advantages of good hygroscopicity, affinity to the human body, and good antistatic properties, but has the disadvantages of being easy to wrinkle. Polyester fiber has the advantages of high strength, good wear resistance, crispness, and not easy to wrinkle. But there are disadvantages such as hygroscopicity and easy static electricity. Polyester-cotton fiber makes the two fibers learn from each other and improves the overall wearing performance. The slow-dyeing function of the leveling agent is the key to whether the dyeing is uniform. The surface crystalline layer and other characteristics of the system play a toe effect on the diffusion of dyes. Therefore, it is necessary to develop an efficient and environmentally friendly high-temperature leveling agent, which has better dyeing retardation and migration properties. The existing high-temperature leveling agent It often contains substances harmful to the environment and has poor dyeing retardation, migration, and dispersion effects, and needs further improvement

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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  • A kind of dyeing process of dark polyester-cotton fabric

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preparation example Construction

[0027] The preparation method of the high-temperature leveling agent is as follows: add sodium dodecylbenzenesulfonate, dicarboxypolyether, p-toluenesulfonic acid, and isobutyltriethoxysilane to the reaction kettle in proportion, raise the temperature to 150°C, and keep warm React for 160 minutes, then continue to heat up to 250°C, keep warm for 60 minutes, then react at 300°C and 0.12MPa for 30 minutes, cool down to 120°C, add glyceryl monostearate, dimethyl terephthalate, ethylene Mix bis-stearamide, glyceryl ether oleate and water evenly, keep warm for 120 minutes, and discharge after cooling down to room temperature to obtain a high-temperature leveling agent;

[0028] When the color development color of the fabric is dark gray, the dyes include 0.68% S-4RL yellow-brown dye, 0.225% S-5BL ruby ​​dye, 0.65% 2# dark blue dye;

[0029] When the color of the fabric is black, the dyes include 1.1% BCT black dye, 1.5% RDS black dye, 0.5% S-4RL yellow-brown dye, and 0.1% S-5BL rub...

Embodiment 1

[0033] A kind of dyeing process of dark gray polyester-cotton fabric, comprises the following steps:

[0034] (1) Pretreatment: add water, heat up to 75°C at 2.5°C / min, add 7g / L hydrogen peroxide, 7g / L water glass, 2g / L penetrant, 1g / L caustic soda, and then Raise the temperature at 2°C / min to 115°C, keep it warm for 10 minutes, then raise the temperature at 2.5°C / min to 135°C, keep it warm for 45 minutes, and finally cool down to 85°C, drain the liquid, and the specific gravity of the water glass is 1.4;

[0035] (2) Dyeing: add water at 45°C, heat up to 85°C at 3.5°C / min, add dye, 0.5g / L glacial acetic acid, and 0.8g / L high-temperature leveling agent, then heat up at 0.5°C / min To 105°C, keep warm for 20min, then raise the temperature to 135°C at 2°C / min, keep warm for 25min, and finally cool down to 85°C without draining, specifically, the bath ratio is 1:4;

[0036] (3) Reduction cleaning: add 0.5g / L alkaline reduction cleaning agent and 0.5g / L glacial acetic acid, wash fo...

Embodiment 2

[0043] A kind of dyeing process of black polyester-cotton fabric, comprises the following steps:

[0044](1) Pretreatment: add water, heat up to 85°C at 3.5°C / min, add 5g / L hydrogen peroxide, 10g / L water glass, 1g / L penetrant, 3g / L caustic soda, then Raise the temperature at 1°C / min to 105°C, hold for 15 minutes, then raise the temperature at 1.5°C / min to 125°C, hold for 55 minutes, and finally cool down to 75°C, drain the liquid, and the specific gravity of the water glass is 1.4;

[0045] (2) Dyeing: Add 55°C water, heat up to 75°C at 2.5°C / min, add dye, 1.5g / L glacial acetic acid, 1.2g / L high-temperature leveling agent, then heat up at 1.5°C / min To 115°C, keep warm for 15min, then raise the temperature to 125°C at 1°C / min, keep warm for 35min, and finally cool down to 75°C without draining, specifically, the bath ratio is 1:5.5;

[0046] (3) Reduction cleaning: add 1g / L alkaline reduction cleaning agent and 1.5g / L glacial acetic acid, wash for 15min, and drain;

[0047] (...

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Abstract

The invention provides a dyeing process of dark-color polyester-cotton blended fabric. The dyeing process comprises the following steps: (1), pretreatment; adding water, adding hydrogen peroxide, water glass,a penetrant, caustic soda, rising the temperature to be 125 DEG C to 135 DEG C, keeping warm for 45 to 55 min, finally cooling to 75 DEGC to 85 DEG C, draining liquid; (2), dyeing: adding water, dye, glacial acetic acid, a high-temperature levelling agent, then rising the temperature to 125 DEG C to 135 DEG C, keeping warm for 25 to 35 min, finally cooling to 75 DEGC to 85 DEG C, not draining liquid; (3) reduction cleaning: adding an alkaline reductive clearing agent, glacial acetic acid, cleaning for 15 to 25 min, draining liquid; (4) softening; adding water, adding liquid wax, softening for 10 to 20 min, the fabric prepared by the dyeing process has the color difference, the dyeing effect and the color fastness reaching to the specified standard 3 to 4, the prepared dark-color polyester-cotton blended fabric is uniform in dyeing and high in color fastness.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a dyeing process for dark-colored polyester-cotton fabrics. Background technique [0002] During the dyeing process of fabrics, the phenomenon of uneven dyeing in the memory will cause defects such as color stripes and stains, which will greatly affect the fabric. In order to promote uniform dyeing and prevent defects such as color stripes and stains, it is effective To improve dyeing uniformity and ensure dyeing efficiency, leveling agents are usually used in the textile industry. [0003] Leveling agents generally need to be able to control the speed at which dyes are absorbed by fabrics, which can promote the uniform distribution of dyes on fabrics and do not affect color fastness. [0004] Cotton fiber is a natural fiber, which has the advantages of good hygroscopicity, affinity to the human body, and good antistatic properties, but has the di...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/00D06P1/44D06P1/613D06P1/62D06P1/649D06P1/651D06P3/87D06P5/00D06L4/12D06L4/13D06M13/02
CPCD06M13/02D06M2101/06D06M2101/32D06M2200/50D06P1/00D06P1/445D06P1/6136D06P1/625D06P1/6495D06P1/65106D06P1/65125D06P3/8238D06P5/002D06L4/12D06L4/13
Inventor 江清照
Owner 福建石狮晨光化纤染织有限公司
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