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Color stripping liquor for dyed chinlon fabrics and color stripping method

A color stripping liquid and nylon technology, applied in dyeing, textiles and papermaking, etc., can solve problems such as hue deviation, cylinder difference, uneven dyeing, etc., and achieve a strong and non-damaging effect

Inactive Publication Date: 2013-02-06
CHINA TEXTILE ACAD JIANGNAN BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the first aspect of the present invention is to provide a stripping solution for nylon dyed fabrics, which is used to solve the problems of uneven dyeing, deviation in hue, and poor cylinder quality after dyeing nylon fabrics with acid dyes.

Method used

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  • Color stripping liquor for dyed chinlon fabrics and color stripping method
  • Color stripping liquor for dyed chinlon fabrics and color stripping method
  • Color stripping liquor for dyed chinlon fabrics and color stripping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: The yellow nylon fabric is stripped.

[0023] (1) Configure stripping solution:

[0024] According to the formula shown in Table 1, configure the stripping solution.

[0025] Table 1, stripping solution formula table

[0026]

[0027] (2) Stripping process:

[0028] Soak the yellow nylon fabric in the stripping solution at room temperature, then raise the temperature to 95°C at a rate of 0.5°C / min, and run at this temperature for 45 minutes. Then take out the stripped fabric and wash it with 80°C hot water for 20 minutes, then cool to room temperature, wash with water and dry.

[0029] (3) Effect detection:

[0030] The K / S value was tested with a datacolor 400 spectrophotometer, and the stripping rate and the strength loss of the nylon fabric before and after stripping were detected, as shown in Table 1.

[0031] It can be seen from Table 1 that the optimal stripping solution formula is: ammonia water 1 g / L, ethylenediaminetetraacetic acid 2 g / L, ...

Embodiment 2

[0033] Embodiment 2: The black nylon fabric is stripped.

[0034] (1) Configure stripping solution:

[0035] According to the formula shown in Table 2, configure the stripping solution.

[0036] Table 2, stripping liquid formula table

[0037]

[0038] (2) Stripping process:

[0039] Immerse the black nylon fabric in the stripping solution at room temperature, raise the temperature to 100°C at a rate of 0.5°C / min, run at this temperature for 60 minutes, then take out the stripped fabric and wash it with hot water at 80°C for 20 minutes. Then cool to room temperature, wash with water, and dry.

[0040] (3) Effect detection:

[0041] The K / S value was tested with a datacolor 400 spectrophotometer, and the stripping rate and the strength loss of the nylon fabric before and after stripping were detected, as shown in Table 2.

[0042] It can be seen from Table 2 that the optimal stripping liquid formula is: ammonia water 2 g / L, EDTA 5 g / L, acid leveling agent FK-450B 5 g / L....

Embodiment 3

[0044] Embodiment 3: red nylon fabric is stripped.

[0045] (1) Configure stripping solution:

[0046] According to the formula shown in Table 3, configure the stripping solution.

[0047] Table 3, stripping liquid formula table

[0048]

[0049] (2) Stripping process:

[0050] Immerse the red nylon fabric in the stripping solution at room temperature, raise the temperature to 98°C at a rate of 1°C / min, run at this temperature for 50 minutes, then take out the stripped fabric and wash it with hot water at 95°C for 20 minutes. Cool to room temperature, wash and dry.

[0051] (3) Effect detection:

[0052] The K / S value was tested with a datacolor 400 spectrophotometer, and the stripping rate and the strength loss of the nylon fabric before and after stripping were detected, as shown in Table 3.

[0053] It can be seen from Table 3 that the optimal stripping liquid formula is: ammonia water 3 g / L, ethylenediaminetetraacetic acid 4 g / L, acid leveling agent TBW-95 4 g / L. ...

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Abstract

The invention discloses color stripping liquor for dyed chinlon fabrics and a color stripping method. The color stripping method is characterized by including the steps of (1) preparation of the color stripping liquor by preparing 0.5-5g / L of ammonia water, 1-10 g / L of ethylene diamine tetraacetic acid, 2-10g / L of acid leveling agents and water into the color stripping liquor; and (2) color stripping by impregnating the colored chinlon fabrics into the color stripping liquor at the room temperature, then increasing the temperature to 80-100 DEG C with the temperature increase rate of 0.5-2 DEG C per minute, impregnating for 30-60 minutes at the temperature of 80-100 DEG C, taking the fabrics subjected to color stripping out, washing the fabrics for 20 minutes at the temperature of 80-100 DEG C, and finally, washing and drying at the room temperature. By the aid of the color stripping method, more than 90% of dye of the dyed chinlon can be stripped, and the strength of the colored chinlon fabrics is almost undamaged.

Description

Technical field: [0001] The invention relates to the stripping of nylon dyed fabrics, in particular to a stripping solution and a stripping method for nylon dyed fabrics. Background technique: [0002] Nylon fabric is widely used in clothing fabrics such as down jackets and swimsuits, and is deeply loved by consumers because of its wear resistance and soft hand feeling. Nylon fabrics are generally dyed with acid dyes and reactive dyes. Nylon dyed with acid dyes has bright color and excellent fastness. However, it is difficult to control the dyeing process of nylon fabrics dyed with acid dyes in actual production. The dyeing temperature, pH, The heating rate has a great influence on nylon fabrics dyed with acid dyes, which may cause color difference and cylinder difference. If the fabrics in question are not stripped and repaired, it will cause great economic losses to the enterprise. The patent No. CN 101851870 A of the Chinese invention patent "Color Stripping and Finis...

Claims

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Application Information

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IPC IPC(8): D06P5/02D06P5/06
Inventor 李翠萍张孝南朱俊伟
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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