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Method of color fixation for dyeing fabric made of acid dye

A technology of acid dyes and color treatment, applied in the field of fabric dyeing and finishing, can solve the problems of small molecular weight, poor wet fastness, and transfer of strong acid dyes, and achieve the effects of improved color fastness of fabrics, low price, and low environmental pollution

Inactive Publication Date: 2014-01-01
KUNSHAN WANFENG GARMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Strong acid dyes have a small molecular weight and contain -SO 3 Hydrophilic groups such as H, -COOH are easily soluble in water, and are mainly combined with fibers (protein fibers) to form salts during dyeing. The wet fastness after dyeing is not good, and it is easy to transfer from fibers to water when washing.
Although weak acid dyes have relatively large molecules and good wet fastness, they still need to be fixed in most cases.

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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  • Method of color fixation for dyeing fabric made of acid dye
  • Method of color fixation for dyeing fabric made of acid dye

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A kind of method that the dyed fabric of acid dye is carried out color fixing treatment, comprises the steps:

[0021] (1) Preparation of silicon-containing hydrosol;

[0022] (2) Dyeing: Dip the silk fabric in the dye prepared with acid red G, adjust the pH of the dye to 4, and the liquor ratio is 1:20, do not wash it after dyeing, roll it on a padding machine, and then heat it at 60°C drying;

[0023] (3) Sol color fixing treatment: use the silicon-containing hydrosol prepared in step (1) to treat the fabric dyed in step (2), and the fabric is dipped and rolled twice in the sol, with a pressure of 4kg / cm 2 , with a liquid loading rate of 60%, pre-baked in an oven at 50°C for 20 minutes, and then baked at 170°C for 10 minutes.

Embodiment 2

[0025] A kind of method that the dyed fabric of acid dye is carried out color fixing treatment, comprises the steps:

[0026] (1) Preparation of silicon-containing hydrosol;

[0027] (2) Dyeing: Dip the nylon fabric in the dye prepared with brilliant blue RAW, adjust the pH of the dye to 5, and the bath ratio 1:30. drying;

[0028] (3) Sol color fixing treatment: use the silicon-containing hydrosol prepared in step (1) to treat the fabric dyed in step (2), and the fabric is dipped and rolled twice in the sol, with a pressure of 4kg / cm 2 , with a liquid loading rate of 65%, pre-baked in an oven at 60°C for 10 minutes, and then baked at 160°C for 10 minutes.

Embodiment 3

[0030] A kind of method that the dyed fabric of acid dye is carried out color fixing treatment, comprises the steps:

[0031] (1) Prepare Si / Ti composite hydrosol, wherein the molar ratio of silicon to titanium is Si:Ti=5:1;

[0032] (2) Dyeing: Dip the silk fabric in the dye prepared with acid medium black T, adjust the pH of the dye to 5, and the liquor ratio is 1:30. ℃ drying;

[0033] (3) Sol color fixing treatment: use the silicon-containing hydrosol prepared in step (1) to treat the fabric dyed in step (2), and the fabric is dipped and rolled twice in the sol, with a pressure of 4kg / cm 2 , with a liquid-carrying rate of 70%, pre-bake in an oven at 70°C for 10 minutes, and then bake at 160°C for 8 minutes.

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 relates to a method of color fixation for a dyeing fabric made of an acid dye. The method comprises the following steps: (1) preparing a sol; (2) dyeing, namely soaking the fabric in the prepared acid dye for dyeing, not washing by water after dyeing, rolling the dyed fabric on a roller, and then drying at 60 DEG C; (3) sol color-fixing treatment, namely treating the fabric dyed in the step (2) by the prepared sol, soaking and rolling the fabric twice, wherein the pressure is 4kg / cm<2>, and the liquid entraining rate is 60-70%; pre-roasting for 10-50 minutes at 50-70 DEG C in an oven; roasting for 5-10 minutes at 150-170 DEG C in the oven. The method provided by the invention has the beneficial effects that the color fastness of the fabric finished by the sol is remarkably improved; the dye is low in cost, and the method is simple in dyeing process and little in environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of fabric dyeing and finishing, and in particular relates to a method for color-fixing fabric dyed with acid dyes. Background technique [0002] Strong acid dyes have a small molecular weight and contain -SO 3 Hydrophilic groups such as H and -COOH are easily soluble in water, and are mainly combined with fibers (protein fibers) to form salts during dyeing. The wet fastness after dyeing is not good, and it is easy to transfer from fibers to water during washing. Although weak acid dyes have relatively large molecules and good wet fastness, they still need to be fixed in most cases. Therefore, how to strengthen the color fastness of strong acid dyes and weak acid dyes has become a hot research topic. Contents of the invention [0003] In order to solve the problems in the prior art, the invention provides a method for color-fixing treatment of fabrics dyed with acid dyes, so as to improve the color fastne...

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): D06P5/02D06P5/10D06P1/39D06P1/673D06P3/06D06P3/24D06P3/16
Inventor 姚建平
Owner KUNSHAN WANFENG GARMENT
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