Natural dye transfer printing color paste as well as preparation method and printing method

A natural dye, transfer printing technology, applied in the field of printing and dyeing, can solve the problems of human body and atmospheric environment damage, low latent heat of vaporization, VOCs and other problems, achieve the effect of soft color, high transfer efficiency, and protection of forest resources

Active Publication Date: 2014-05-21
常熟市恒润针纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering the affinity between water-soluble dyes and paper, paper must be treated with a release agent when using paper as a substrate. Even so, such cold transfer printing still has the problem of low transfer rate.
[0004] In order to protect forest resources, some people use hydrophobic film as a transfer medium, disperse the dye in a strong polar organic solvent, and use its lower latent heat of vaporization to make the printing outline clearer, but at the same time it brings the problem of VOCs. Cause damage to human body and atmospheric environment

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

[0021] Mulberry red natural dye transfer printing color paste, including the following raw materials in mass percentage: 2% mulberry red natural dye; 36% alcohol-soluble acrylic resin CRB (purchased from Jiangsu Hannuosi Chemical Co., Ltd.); 0.3% tributyl citrate ; Ethanol 22%; Isopropanol 21%; Ethyl acetate 18.7%.

[0022] Put ethanol, isopropanol and ethyl acetate in a stirrer at 900r / min and stir at 30°C, slowly add alcohol-soluble acrylic resin until dissolved, add tributyl citrate and stir at 1200r / min, then slowly add mulberry red natural Dye, make it fully mixed, transfer it to a sand mill for grinding, control the particle size of the color paste to less than 0.5 μm, adjust the pH to 9 with ammonia water, add ethanol to adjust the viscosity of the color paste to 20s (Zarn Viscosity Cup No. 3).

Embodiment 2

[0024] Chestnut yellow natural dye transfer printing paste, including the following raw materials by mass percentage: 15% chestnut yellow natural dye; 35% alcohol-soluble acrylic resin CRB (purchased from Jiangsu Hannuosi Chemical Co., Ltd.); 0.4% tributyl citrate ; Ethanol 27%; Isopropanol 22.6%.

[0025] Put ethanol and isopropanol in a stirrer at 1000r / min and stir at 30°C, slowly add alcohol-soluble acrylic resin until dissolved, add trioctyl citrate and stir at 1400r / min, then slowly add chestnut yellow natural dye to make it Mix well, transfer to a sand mill for grinding, control the particle size of the color paste to less than 0.5 μm, adjust the pH to 8.5 with ammonia water, add ethanol to adjust the viscosity of the color paste to 11s (Zarn Viscosity Cup No. 3).

Embodiment 3

[0027] Taro green natural dye transfer printing color paste, including the following raw materials in mass percentage: 17% of taro green natural dye; 45% of alcohol-soluble acrylic resin CRB (purchased from Jiangsu Hannuosi Chemical Co., Ltd.); 0.5% of tributyl citrate ; Ethanol 30%; Isopropanol 7.5%.

[0028] Put ethanol and isopropanol in a stirrer at 40°C and stir at 700r / min, slowly add alcohol-soluble acrylic resin until dissolved, add tributyl citrate and stir at 1300r / min, then slowly add taro green natural dye to make it Mix well, transfer to a sand mill for grinding, control the particle size of the color paste to less than 0.5 μm, adjust the pH to 8.5 with triethanolamine, add ethanol to adjust the viscosity of the color paste to 15s (Zarn Viscosity Cup No. 3).

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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PUM

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Abstract

The invention provides a natural dye transfer printing color paste as well as a preparation method and a printing method. A shortcoming that damages are caused to human bodies and atmospheric environment by transfer printing in the prior art is overcome. The color paste comprises the following components in percentage by mass: 2-23 % of natural plant dye, 35-50 % of acrylic resin, 0.3-0.5 % of plasticizer and 26.5-62.7 % of solvent. The printing method of the natural dye transfer printing color paste comprises the following steps: (1) preparation of the natural dye transfer printing color paste; and (2) fabric printing. The natural plant dye has no affinity with a film; during transfer printing, high transferring efficiency and fastness is qualified through an effect of a natural modifying agent; the natural plant dye has a soft and plain color; through a transfer printing process, a layered plate printing effect can be obtained; the transfer printing process is pollution-free and the dye, the solvent, an auxiliary and a fabric are all modified into environment friendly products; and moreover, transfer printing paper is not needed and forest resources are protected.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing, and in particular relates to a natural dye color paste for transfer printing and a transfer printing method thereof. Background technique [0002] Transfer printing in the traditional sense is carried out on hydrophobic fibers such as polyester by using the characteristics of high-temperature sublimation of disperse dyes. It is to attach the fabric to the thermal transfer printing paper printed with the pattern, and press it on the heat transfer machine, and the pattern on the paper is transferred to the fabric. The outstanding advantages of this printing method are that it does not consume water, does not produce sewage, and the pattern is fine, and it can print patterns with photo effects. However, this method cannot print fabrics of natural fibers such as cotton, because there is no binding force between these fabrics and dyes that can be transferred by heat. In order to realize ...

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): D06P1/34D06P1/52D06P5/24D06P3/60
Inventor 汪媛纪俊玲张聪彭勇刚
Owner 常熟市恒润针纺织品有限公司
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