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Polyamide fabric modifying, dyeing and finishing process

A fabric and nylon technology, which is applied in the field of modified dyeing and finishing processes, can solve the problems of difficult treatment of printing and dyeing wastewater, damage to the ecological environment, and large fiber damage, so as to increase the coloring rate and dye leveling, avoid environmental pollution, and achieve effective results. Good results

Inactive Publication Date: 2015-11-04
TAICANG CHENGLE CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process is complicated, the efficiency is low, and the energy consumption is high.
At the same time, during scouring, alkaline solutions such as hydrosulfite and sodium carbonate are usually used for high-temperature treatment, which will cause greater damage to the fibers.
[0006] In addition, in the dyeing process of nylon fiber fabrics, in order to improve the color fixation, a large amount of soda ash and inorganic salts are usually added during the dyeing process, which brings great difficulties to the treatment of printing and dyeing wastewater with high salt content, such as direct discharge will destroy Ecological environment, leading to soil salinization

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

[0041] A modified dyeing and finishing process for nylon fabrics, comprising the following steps:

[0042] (1) Pretreatment: Pretreatment of nylon fabric, specifically: urea 1g / L, phosphorus-free degreasing agent TF-104M 4.5 g / L, scouring agent 1 g / L, 30% hydrogen peroxide 8 g / L, Helicase 8 g / L, α-amylase 8 g / L, conduct ultrasonic treatment in an ultrasonic water bath at 40°C for 1-2 min, bath ratio 30:1, ultrasonic frequency 45Hz, re-inject clean water after treatment 2 times, then dry;

[0043] (2) Presetting: Carry out presetting treatment on nylon fabric, add heat-resistant yellowing agent FK-161 8 g / L when setting, setting temperature is 150 ° C, speed is 20m / min, overfeed 5%;

[0044] (3) Modification treatment: Put the shaped nylon fabric in a water bath for treatment, add nano-titanium dioxide 3 g / L, and γ-(2,3-glycidyloxy)propyltrimethoxysilane 7 g in the water bath / L, caprolactam 14 g / L, sodium hydroxide 8 g / L, ethanol 20 g / L, bath ratio 50:1, modified at 70°C for...

Embodiment 2

[0057] A modified dyeing and finishing process for nylon fabrics, comprising the following steps:

[0058] (1) Pretreatment: pretreatment of nylon fabric, specifically: urea 1.2g / L, phosphorus-free degreasing agent TF-104M 5 g / L, scouring agent 1.2 g / L, 30% hydrogen peroxide 9g / L, Helicase 9 g / L, α-amylase 9 g / L, conduct ultrasonic treatment in an ultrasonic water bath at 40°C for 1-2 min, bath ratio 30:1, ultrasonic frequency 45 Hz, re-inject clean water after treatment 2 times, then dry;

[0059] (2) Presetting: Carry out presetting treatment on nylon fabric, add heat-resistant yellowing agent FK-161 9 g / L when setting, setting temperature is 155°C, speed is 25m / min, and overfeed is 8%;

[0060] (3) Modification treatment: Put the shaped nylon fabric in a water bath for treatment, add nano-titanium dioxide 4g / L, γ-(2,3-glycidyloxy)propyltrimethoxysilane 8 g / L in the water bath L, caprolactam 15 g / L, sodium hydroxide 9 g / L, ethanol 25 g / L, liquor ratio 50:1, modified at 75°...

Embodiment 3

[0073] A modified dyeing and finishing process for nylon fabrics, comprising the following steps:

[0074](1) Pretreatment: Pretreatment of nylon fabric, specifically: urea 1.5g / L, phosphorus-free degreasing agent TF-104M 5.5 g / L, scouring agent 1.5 g / L, 30% hydrogen peroxide 10 g / L , helicase 10 g / L, α-amylase 10 g / L, conduct ultrasonic treatment in an ultrasonic water bath at 40°C for 1-2 min, the bath ratio is 30:1, and the ultrasonic frequency is 45Hz. After the treatment, re-inject clean water Wash 2 times, then dry;

[0075] (2) Presetting: Carry out presetting treatment on nylon fabric, add heat-resistant yellowing agent FK-161 10 g / L when setting, setting temperature is 160 °C, speed is 30m / min, overfeed 10%;

[0076] (3) Modification treatment: Put the shaped nylon fabric in a water bath for treatment, add nano-titanium dioxide 5 g / L, and γ-(2,3-glycidyloxy)propyltrimethoxysilane 9 g in the water bath / L, caprolactam 16 g / L, sodium hydroxide 10 g / L, ethanol 30 g / L, ...

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 polyamide fabric modifying, dyeing and finishing process. The process comprises the steps of pretreatment, pre-setting, modification treatment, dyeing, soaping, color fixing, after treatment, drying, setting, calendering and rolling. Helicase and alpha-amylase are adopted for carrying out pretreatment, mixed liquor of nanometer titanium dioxide, gamma-(2, 3-epoxypropoxy) trimethoxypropylsilane and caprolactam is adopted for modifying performance of polyamide fabric fundamentally, and the dye-uptake rate of the fabric is increased; in the dyeing working procedure, a large number of alkaline substances and inorganic salts are not used, a leveling agent and a dispersing agent are added, and dyeing levelness is improved; meanwhile, as rosin powder is added to serve as a color fixing agent, the color fixing effect is enhanced, environmental pollution is avoided, and the requirement for environmental protection is met; moreover, montmorillonite is adopted for carrying out modifying and flame retarding on the fabric, and therefore the fire retarding property of the fabric is high; anti-yellowing reagents are used in the presetting and setting steps, and therefore the final fabric is not prone to yellowing.

Description

technical field [0001] The invention relates to a modified dyeing and finishing process of nylon fabric. Background technique [0002] Fiber is divided into chemical fiber and natural fiber. Natural fiber refers to the fiber that exists and grows in nature and has textile value. Chemical fiber is made of natural polymer compound or artificially synthesized polymer compound. Fibers with textile properties produced by silk and post-treatment processes. Chemical fibers have the advantages of light resistance, wear resistance, easy washing and drying, no mildew, no moths, etc., and are widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation threads, medical sutures , tire cord and parachute etc. [0003] Nylon fiber, commonly known as nylon fiber, scientific name polyamide fiber, is a kind of chemical fiber. Its products have good elasticity, high strength, wear resistance, durability, low density, an...

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): D06P1/39D06P1/44D06P1/46D06P1/673D06P3/06D06M13/432D06M11/50D06M16/00D06M11/46D06M13/513D06M13/418D06M13/262D06M15/356D06M15/53D06M15/03D06M13/192D06M13/463D06M11/77D06M101/34
Inventor 陈秀珍
Owner TAICANG CHENGLE CHEM FIBER
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