Indigo printed fabric and printing method thereof

A printing method, the technology of indigo, which is applied in the field of textile printing and dyeing, can solve the problems of long process cycle and poor printing and dyeing effect, and achieve the effects of high color fastness to washing, shortening process cycle, and high color saturation of patterns

Active Publication Date: 2021-04-27
ZHUHAI JIAN XUAN CLOTHING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Indigo dye is mainly used for dyeing cotton, hemp, wool, silk and other fabrics. It is suitable for large-scale dyeing. If indigo dye is used for screen printing, it is necessary to make indigo white precipitation from indigo dye by traditional fermentation method, and then add printing paste (a mixture of corn flour and British gum) for printing, and needs to cooperate with complex processes such as reduction, steaming, oxidation, desizing, etc., the process cycle is long, and the printing and dyeing effect is not good.

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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  • Indigo printed fabric and printing method thereof
  • Indigo printed fabric and printing method thereof
  • Indigo printed fabric and printing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The present embodiment provides a kind of indigo printed fabric and printing method thereof, and the steps are as follows:

[0036] 1) Pre-treat the fabric. Specifically: scouring and desizing the fabric.

[0037] 2) According to the printing pattern, make the screen printing screen, specifically: film output, screen making and photosensitive drying according to the printing pattern.

[0038] 3) Prepare indigo slurry.

[0039] Add indigo, caustic soda and hydrosulfite in a weight ratio of 1:1:2 to hot water at 60°C, mix and stir for 30 minutes to obtain a mixed solution, the pH of which is 10.

[0040] In the mixture, the following reaction takes place:

[0041] C 16 h 10 N 2 o 2 +Na 2 S 2 o 4 +2NaOH→C 16 h 12 N 2 o 2 +2Na 2 SO 3 ,

[0042] Add acrylic ester copolymer to the above mixed solution, and filter out impurities with a gauze to obtain indigo slurry. The kinematic viscosity of the above indigo slurry is 40mm 2 / s.

[0043] The kinematic visco...

Embodiment 2

[0049] The present embodiment provides a kind of indigo printed fabric and printing method thereof, and step is basically the same as embodiment 1, difference is: in step 3), the preparation method of indigo slurry is as follows:

[0050] Add indigo, caustic soda and hydrosulfite in a weight ratio of 1:1:2 to hot water at 50°C, mix and stir for 30 minutes to obtain a mixed solution, the pH of which is 10.

[0051] Add acrylic ester copolymer to the above-mentioned mixed solution, and filter out impurities with a gauze to obtain indigo slurry. The kinematic viscosity of the above-mentioned indigo slurry is 50mm 2 / s.

[0052] In this embodiment, water is added to the above indigo dye for toning, and the volume ratio of indigo slurry to water is 20:80.

[0053] The indigo printed fabric of the present embodiment is as figure 2 shown.

Embodiment 3

[0055] The present embodiment provides a kind of indigo printed fabric and printing method thereof, and step is basically the same as embodiment 1, difference is: in step 3), the preparation method of indigo slurry is as follows:

[0056] Add indigo, caustic soda and hydrosulfite in a weight ratio of 1:1:2 to hot water at 70°C, mix and stir for 30 minutes to obtain a mixed solution, the pH of which is 10.

[0057] Add acrylic ester copolymer to the above mixed solution, and filter out impurities with a gauze to obtain indigo slurry. The kinematic viscosity of the above indigo slurry is 30mm 2 / s.

[0058] In this embodiment, water is added to the indigo dye for toning, and the volume ratio of the indigo slurry to water is 20-80.

[0059] The indigo printed fabric of the present embodiment is as image 3 shown.

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 printing method for indigo printed fabrics, comprising the following steps: adding indigo, caustic soda and hydrosulfite with a weight ratio of 1:(0.5-2):(1-5) to water at 50°C-70°C, mixing Stir to obtain a mixed solution; add an acrylic ester copolymer to the mixed solution, filter to obtain an indigo slurry, and the kinematic viscosity of the indigo slurry is 30mm 2 / s-50mm 2 / s; the screen printing screen is laid on the fabric, and the indigo slurry is coated on the screen printing screen to obtain a patterned fabric; the patterned fabric is naturally dried, washed, After drying, the indigo printed fabric is obtained. The above-mentioned printing method can save complex technological processes such as steaming, oxidation, and desizing while ensuring the printing and dyeing effect of the fabric, shortening the process cycle, and reducing the discharge of waste water and waste gas.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to an indigo printed fabric and a printing method thereof. Background technique [0002] Screen printing is a commonly used printing method at present, which has the advantages of rich colors and strong expressive power. Conventional screen printing is made by making a screen plate (the screen plate process: stretching the screen and smearing photosensitive glue on the stretched screen to make a pattern film, pasting the pattern on the screen, exposing and developing it) Screen version.) Then press the slurry to transfer the pattern on the screen version to the printed fabric. [0003] Indigo dye is mainly used for dyeing cotton, hemp, wool, silk and other fabrics. It is suitable for large-scale dyeing. If indigo dye is used for screen printing, it is necessary to make indigo white precipitation from indigo dye by traditional fermentation method, and then add printing pas...

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 Patents(China)
IPC IPC(8): D06P1/22D06P1/673D06P1/52D06P5/00
CPCD06P1/228D06P1/525D06P1/6735D06P5/00
Inventor 简永郭守雨向德兵
Owner ZHUHAI JIAN XUAN CLOTHING LTD
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