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Dyeing process of jeans fabric

A technology of fabric and craftsmanship, which is applied in the field of fabric dyeing technology, and can solve the problems of fading denim clothing, affecting the appearance of clothing, wasting time, etc.

Inactive Publication Date: 2012-07-11
潘雪峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Denim is widely loved by urban women because of its wear resistance, thickness, and natural color. However, denim clothes are easy to fade when washed, which makes the color of denim clothes fade after repeated washing, which affects the appearance of clothes; Secondly, because the color fades during washing, the denim clothes must be washed separately from other clothes, which increases the workload and wastes time

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

[0011] A dyeing process for denim fabrics. Firstly, the fabric is pretreated, the dyeing solution is subjected to ultrasonic pretreatment for 10 minutes, and then the temperature is raised to 80°C, and the fabric is put into the fabric to start dyeing. The dyeing time is controlled at 80 minutes, the soap is boiled to fix the color, and then the dyeing process is repeated. Twice, drying, and finally soaking in 5% sodium bicarbonate solution doped with activated carbon for 4 hours, soaping, washing, drying, and the dyeing is completed. After soaking the dyed cloth in water for different times, measure the OD of the resulting aqueous solution 520 The results are shown in Table 1. From the experimental data, it can be seen that the fabric dyed by this process is not easy to decolorize. After soaking in water for 48 hours, there is only a small amount of fading, and the aqueous solution is basically invisible to the naked eye.

Embodiment 2

[0013] A dyeing process for denim fabrics, first pre-treating the fabrics, ultrasonically pretreating the dyeing solution for 50 minutes, then raising the temperature to 120°C, putting the fabrics in to start dyeing, controlling the dyeing time to 50 minutes, boiling with soap to fix the color, and then repeating the dyeing steps 5 times, dry, and finally soak in 20% sodium bicarbonate solution doped with activated carbon for 10 hours, soap wash, wash with water, dry, and the dyeing is completed.

[0014] After soaking the dyed cloth in water for different times, measure the OD of the resulting aqueous solution 520 The results are shown in Table 1. From the experimental data, it can be seen that the fabric dyed by this process is not easy to decolorize. After soaking in water for 48 hours, there is only a small amount of fading, and the aqueous solution is basically invisible to the naked eye.

[0015] Table 1:

[0016] time 2h 8h 24h 36h 48h Example 1 0....

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Abstract

The invention provides a dyeing process of a jeans fabric. The dyeing process comprises the following steps of fabric pretreatment, dyeing at a raised temperature, soaping, rinsing and drying and specifically comprises the steps of: subjecting a dyeing solution to ultrasonic pretreatment for 10-50min before the dyeing at the raised temperature; raising the temperature to 80-120 DEG C, and putting a fabric into the dyeing solution for dyeing, wherein the dyeing time is controlled within 50-80min; soaping the fabric to fix the color; repeating the dyeing step 2-5 times; drying the fabric; soaking the fabric in an active-carbon-doped sodium bicarbonate solution for 4-10h; and soaping, rinsing and drying the fabric to complete the dyeing. According to the invention, as the dyeing solution is subjected to ultrasonic pretreatment before the dyeing, dye-pickup of the fabric is increased, and the obtained color is good, and has a high fasteness; as the step of soaking the fabric in the sodium bicarbonate solution is added before the soaping, color of the fabric can be stabilized, and molecules which are not dyed firmly are adsorbed; and moreover the fabric prepared by the steps of soaping, rinsing and drying has high dyefastness, and is not easy to fade during the cleaning.

Description

technical field [0001] The invention relates to a cloth dyeing process, in particular to a denim dyeing process. Background technique [0002] Since the end of the 1970s, denim has undergone several major developments in my country. At present, the annual production capacity is estimated to have reached more than 1.5 billion square meters, and it has become an important producer of denim in the world. A large number of relatively advanced denim and denim clothing enterprises have basically reached international standards in terms of quality and variety, initially reversing the concept that my country's denim products are "low-grade products" in the international market. Denim is widely loved by urban women because of its wear resistance, thickness, and natural color. However, denim clothes are easy to fade when washed, which makes the color of denim clothes fade after repeated washing, affecting the appearance of clothes; Secondly, because of fading during washing, denim cl...

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): D06P5/20D06P5/10D06P5/02
Inventor 潘雪峰
Owner 潘雪峰
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