Environmental-friendly dyeing and finishing process of real silk fabric

An environment-friendly technology for real silk fabrics, which is applied in the field of environment-friendly dyeing and finishing processes, can solve the problems that affect the brightness and aesthetics of dyed fabrics, the environmental pollution caused by chemical dyes, and the dyeing effect of natural dyes is poor. Good desizing effect, improved dye uptake and fixation rate

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

AI Technical Summary

Problems solved by technology

[0004] Traditional dyeing usually uses chemical dyes for dyeing, but chemical dyes are more polluting to the environment. In order to reduce environmental pollution, research has begun to use natural dyes for dyeing, and when dyeing with natural dyes, it is usually dyed at a lower temperature, so that The requirements for the equipment are lower, and the energy consumption will be reduced
[0005] However, the dyeing effect of natural dyes is poor, and the color fixation of the dyed fabric is low. 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 serious problems for the treatment of printing and dyeing wastewater with high salt content. It is more difficult, such as direct discharge will destr

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

[0042] An environment-friendly dyeing and finishing process for real silk fabrics, comprising the following steps:

[0043] (1) Pretreatment: Pretreatment of silk fabrics, specifically: urea 1g / L, phosphorus-free degreaser TF-104M 4.5g / L, scouring agent 1g / L, 30% hydrogen peroxide 8g / L, helicase 8g / L, α-amylase 8g / L, perform ultrasonic treatment in an ultrasonic water bath at 40°C for 1-2min, the bath ratio is 30:1, and the ultrasonic frequency is 45Hz. Dry;

[0044] (2) Pre-setting: Pre-setting the silk fabric, adding anti-yellowing agent FK-1618g / L when setting, the setting temperature is 150°C, the speed is 20m / min, and the overfeed is 5%;

[0045] (3) Low-temperature freezing treatment: Put the shaped silk fabric into a low-temperature freezer for low-temperature freezing treatment. The freezing temperature is -80°C, the freezing time is 24 hours, and the moisture regain is 40%. The final mulberry silk fabric is taken out and placed at room temperature to balance for 24 ...

Embodiment 2

[0060] An environment-friendly dyeing and finishing process for real silk fabrics, comprising the following steps:

[0061] (1) Pretreatment: Pretreatment of silk fabrics, specifically: urea 1.2g / L, phosphorus-free degreaser TF-104M 5g / L, scouring agent 1.2g / L, 30% hydrogen peroxide 9g / L, helicase 9g / L, α-amylase 9g / L, perform ultrasonic treatment in an ultrasonic water bath at 40°C for 1-2min, the bath ratio is 30:1, and the ultrasonic frequency is 45Hz. Dry;

[0062] (2) Pre-setting: pre-setting the silk fabrics, adding heat-resistant yellowing agent FK-1619g / L when setting, the setting temperature is 155°C, the speed is 25m / min, and the overfeed is 8%;

[0063] (3) Low-temperature freezing treatment: Put the shaped silk fabric into a low-temperature freezer for low-temperature freezing treatment. The freezing temperature is -80°C, the freezing time is 36 hours, and the moisture regain is 40%. The final mulberry silk fabric is taken out and placed at room temperature to ba...

Embodiment 3

[0078] An environment-friendly dyeing and finishing process for real silk fabrics, comprising the following steps:

[0079] (1) Pretreatment: Pretreatment of silk fabrics, specifically: urea 1.5g / L, phosphorus-free degreaser TF-104M 5.5g / L, scouring agent 1.5g / L, 30% hydrogen peroxide 10g / L, Helicase 10g / L, α-amylase 10g / L, conduct ultrasonic treatment in an ultrasonic water bath at 40°C for 1-2min, the bath ratio is 30:1, and the ultrasonic frequency is 45Hz. After the treatment, re-inject water and wash twice. then dry;

[0080] (2) Pre-setting: pre-setting the silk fabric, adding anti-yellowing agent FK-16110g / L when setting, setting temperature is 160°C, speed is 30m / min, overfeed 10%;

[0081] (3) Low-temperature freezing treatment: Put the shaped silk fabric into a low-temperature freezer for low-temperature freezing treatment. The freezing temperature is -80°C, the freezing time is 48 hours, and the moisture regain is 40%. The final mulberry silk fabric is taken out a...

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 an environmental-friendly dyeing and finishing process of a real silk fabric. The environmental-friendly dyeing and finishing process of the real silk fabric comprises pretreatment, presetting, cryogenic freezing treatment, dyeing, mordant removal, soaping, color fixing, post-finishing, drying, setting, calendering and winding. By performing pretreatment with helicase and alpha-amylase and by adopting cryogenic freezing treatment before dyeing, the performance of the real silk fabric is fundamentally modified and the dye uptake rate of the fabric is improved; a great amount of alkali substances and inorganic salt are not used in the dyeing process and leveling agent and dispersing agent are added, the dyeing uniformity is improved, the environmental pollution is avoided by using natural dyes and the requirements on the environmental protection are satisfied; since self-cleaning treatment is added during post-treatment, the self-cleaning ability, the wrinkling resistance and the water washing fastness of the fabric are improved; the entire process is environmental-friendly and pollution-free.

Description

technical field [0001] The invention relates to an environment-friendly dyeing and finishing process for real silk fabrics. Background technique [0002] Fiber is divided into chemical fiber and natural fiber. Chemical fiber has the advantages of light resistance, wear resistance, easy washing and drying, no mildew, and no moth. It is widely used in the manufacture of clothing fabrics, filter cloth, conveyor belts, hoses, ropes, Fishing nets, electrical insulating wires, medical sutures, tire cords and parachutes, etc. Natural fibers refer to fibers that exist and grow in nature and have textile value. Chemical fibers use natural polymer compounds or artificially synthesized polymer compounds as raw materials. , through the preparation of spinning dope, spinning and post-processing and other processes made of fibers with textile properties. [0003] Silk is a kind of natural fiber, to be precise, a kind of natural protein fiber. Because of its good moisture absorption, brea...

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): D06P3/04D06P1/34D06P1/673D06P5/10D06P5/08D06M10/02D06M10/06D06M10/08D06M16/00D06M15/03D06M13/207D06M13/463D06M11/79D06M13/144D06M11/38D06M13/192D06M11/70D06M11/46D06B13/00D06C7/02D06C7/00D06C15/00
Inventor 陈秀珍
Owner TAICANG CHENGLE CHEM FIBER
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