Environment-friendly dyeing and finishing technology of cotton cellulose fabric

An environment-friendly technology for cotton fiber fabrics, which is applied in the field of environment-friendly dyeing and finishing processes, can solve the problems of affecting the brightness and aesthetics of dyed fabrics, poor dyeing effect of natural dyes, and large pollution of chemical dyes, so as to achieve favorable dyeing effect and improve the Dyeing rate, the effect of high dyeing rate

Inactive Publication Date: 2015-10-28
TAICANG CHENGLE CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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
[0004] 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 destroy the ecological environment and lead to soil salinization
At the same time, when natural dyes are used, some mordants containing metal ions are usually used. Although the use of mordants will improve the dyeing effect, if the mordants cannot be completely removed in post-processing, it will not only pollute the environment, but also cause pollution. It will make the shade of the fabric mostly dim, affecting the vividness and aesthetics of the dyed fabric
In addition, in order to reduce the difficulty of dyeing in the subsequent dyeing process, the fiber fabric usually needs to be pretreated before dyeing, but the current pretreatment basically uses alkaline solutions such as hydrosulfite and sodium carbonate for high temperature pretreatment, which will affect the fiber. Larger damage

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] An environment-friendly dyeing and finishing process for cotton fiber fabrics, comprising the following steps:

[0042] (1) Pretreatment: Pretreatment of cotton fiber fabrics, 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, the bath ratio is 30:1, the ultrasonic frequency is 45Hz, and refill with clean water after the treatment Wash 2 times, then dry;

[0043] (2) Pre-setting: Pre-setting the cotton fiber fabric, adding heat-resistant yellowing agent FK-161 8 g / L when setting, the setting temperature is 150°C, the speed is 20m / min, and the overfeed is 5%;

[0044] (3) Modification treatment: Put the shaped cotton fiber fabric into the plasma equipment for plasma treatment, the discharge power is 100W, the discharge frequency is 13.56MHz, and the treatment time is 3min; then put it i...

Embodiment 2

[0059] An environment-friendly dyeing and finishing process for cotton fiber fabrics, comprising the following steps:

[0060] (1) Pretreatment: Pretreatment of cotton fiber fabrics, 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, the bath ratio is 30:1, and the ultrasonic frequency is 45Hz, after the treatment, re-inject clean water Wash 2 times, then dry;

[0061] (2) Pre-setting: pre-setting the cotton fiber fabric, adding heat-resistant yellowing agent FK-161 9 g / L when setting, the setting temperature is 155°C, the speed is 25m / min, and the overfeed is 8%;

[0062] (3) Modification treatment: Put the shaped cotton fiber fabric into the plasma equipment for plasma treatment, the discharge power is 100W, the discharge frequency is 13.56MHz, and the treatment time is 3min; then put it i...

Embodiment 3

[0077] An environment-friendly dyeing and finishing process for cotton fiber fabrics, comprising the following steps:

[0078] (1) Pretreatment: pretreatment of cotton fiber fabrics, 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 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, bath ratio is 30:1, ultrasonic frequency is 45Hz, re-inject after treatment Wash twice with water, then dry;

[0079] (2) Pre-setting: pre-setting the cotton fiber fabric, adding heat-resistant yellowing agent FK-161 10 g / L when setting, the setting temperature is 160°C, the speed is 30m / min, and the overfeed is 10%;

[0080] (3) Modification treatment: Put the shaped cotton fiber fabric into the plasma equipment for plasma treatment, the discharge power is 100W, the discharge frequency is 13.56MHz, and the treatment time is 3min; then put it in a water b...

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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Abstract

The invention discloses an environment-friendly dyeing and finishing technology of a cotton cellulose fabric. The technology comprises the following steps: pretreatment; preshaping; modification treatment; dyeing; mordant removing; soaping; color fixing; post-treatment; drying; shaping; calendaring; rolling. According to the technology, pretreatment is carried out through the adoption of helicase and alpha-amylase, and acetic acid aqueous solution of chitosan, hydrogen peroxide and epoxy chloropropane is adopted, so that the property of the cotton cellulose fabric is fundamentally modified, and the dye-uptake of the fabric is increased; during the dyeing procedure, large quantities of alkaline substances and inorganic salt are not used, and a levelling agent and a dispersing agent are added, so that the dye uniformity is improved; natural dye is used, so that environmental pollution is avoided, and the demand of environmental protection is met; modification treatment and fire retardant treatment are carried out on the fabric through the adoption of montmorillonite, so that the fire resistance of the fabric is high; self-cleaning treatment is added in post-treatment, so that the self-cleaning capacity, wrinkle resistance and water washable firmness of the fabric are improved; the whole technology is environment-friendly and free of pollution.

Description

technical field [0001] The invention relates to an environment-friendly dyeing and finishing process for cotton fiber 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] Cotton fiber is a natural fiber with good moisture absorption and air permeability, soft and warm, so it is widely used in ...

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 Applications(China)
IPC IPC(8): D06M11/50D06M16/00D06M13/432D06M10/00D06M13/188D06M15/03D06M13/11D06P3/60D06P1/34D06P1/673D06P5/10D06P5/08D06L1/16D06L1/04D06M13/207D06M13/463D06M11/79D06M11/38D06M13/192D06M11/70D06M11/46D06B13/00D06B3/10D06B15/00D06C7/02D06C15/00D06M101/06
Inventor 陈秀珍
Owner TAICANG CHENGLE CHEM FIBER
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