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A kind of water-based ink and preparation method thereof

A water-based ink and water-based polyurethane technology, applied in the field of textile printing, can solve the problems of safety and environmental protection.

Active Publication Date: 2020-06-02
广州市华年新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a kind of water-based ink and preparation method thereof, be used to solve in the prior art, water-based ink satisfies printing suitability, storage stability, dryness, thermal transfer rate, dyeing fastness after transfer printing. At the same time, it is impossible to achieve true safety and environmental protection technical defects

Method used

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  • A kind of water-based ink and preparation method thereof
  • A kind of water-based ink and preparation method thereof
  • A kind of water-based ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 1 kg of dispersant, 10 kg of disperse dye and 40 kg of deionized water, mix them, and grind to obtain the first product 1, the diameter of the first product 1 is less than or equal to 5 μm. After the first product 1 was stirred at a stirring speed of 400 r / min for 20 min, the pH was adjusted to 7.0 to obtain the second product 1. 24kg of water-based polyurethane, 5kg of co-solvent and 20kg of deionized water were sequentially added to the second product 1, mixed, and stirred at a stirring speed of 400r / min for 15min to obtain product 1.

[0022] In the embodiment of the present invention, the dispersant is dispersant MF, the disperse dye is disperse red 60, the water-based polyurethane is cross-linked water-based polyurethane with an acid value of 230 mgKOH / g, and the co-solvent is ethanol.

Embodiment 2

[0024] Weigh 2 kg of dispersant, 50 kg of disperse dye and 12.5 kg of deionized water, mix them, and grind to obtain the first product 2, the diameter of the first product 2 is less than or equal to 5 μm. After the first product 2 was stirred at a stirring speed of 500 r / min for 18 min, the pH was adjusted to 7.5 to obtain the second product 2. 20kg of water-based polyurethane, 8kg of co-solvent and 7.5kg of deionized water were sequentially added to the second product 2, mixed, and stirred at a stirring speed of 450r / min for 20min to obtain product 2.

[0025] In the embodiment of the present invention, the dispersant is dispersant Pingpingjia, the disperse dye is Disperse Yellow 211, the water-based polyurethane is cross-linked water-based polyurethane with an acid value of 230 mgKOH / g, and the co-solvent is ethanol.

Embodiment 3

[0027] Weigh 3 kg of dispersant, 27 kg of disperse dye and 32 kg of deionized water, mix them, and grind to obtain the first product 3, the diameter of the first product 3 is less than or equal to 5 μm. After the first product 3 was stirred at a stirring speed of 450 r / min for 15 min, the pH was adjusted to 7.2 to obtain the second product 3 . 10kg of water-based polyurethane, 10kg of co-solvent and 18kg of deionized water were sequentially added to the second product 3, mixed, and stirred at a stirring speed of 500r / min for 17min to obtain product 3.

[0028] In the embodiment of the present invention, the dispersant is dispersant NNO, the disperse dye is disperse blue 165, the water-based polyurethane is cross-linked water-based polyurethane with an acid value of 230 mgKOH / g, and the cosolvent is ethanol.

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Abstract

The invention belongs to the field of textile printing and in particular relates to aqueous printing ink and a preparation method thereof. The invention provides the aqueous printing ink and the aqueous printing ink is prepared from the following raw materials: disperse dye, aqueous polyurethane, a dispersant, a co-solvent and de-ionized water. The invention further discloses a preparation method of the aqueous printing ink; the preparation method comprises: step 1, after mixing the dispersant, the disperse dye and a first part of the de-ionized water, grinding to obtain a first product; step 2, after stirring the first product, adjusting the pH to be 7.0 to 7.5, so as to obtain a second product; step 3, sequentially adding the aqueous polyurethane, the co-solvent and a second part of the de-ionized water into the second product and mixing to obtain a product. Experimental measurement shows that the obtained product can meet indexes including printability, storage stability, drying property, thermal transfer rate and color fastness after transfer print and can consider both safety and environmental friendliness.

Description

technical field [0001] The invention belongs to the field of textile printing, in particular to a water-based ink and a preparation method thereof. Background technique [0002] Textile printing is an important part of the field of textile science. It plays an irreplaceable role in meeting people's wear and clothing needs, and greatly enriches people's lives. With the development of the economy and the progress of science and technology, the field of textile printing is also facing reform and upgrading. Due to its own technical limitations and environmental protection pressure, the traditional printing technology is no longer enough to meet the needs of the market. Therefore, the new printing technology- Thermal transfer printing has gradually entered people's lives. As one of the more popular textile printing methods today, thermal transfer printing has the advantages of small footprint, short process flow and no waste water and waste gas discharge. Thermal transfer print...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/102C09D11/03D06P1/16D06P1/52D06P5/26
CPCC09D11/03C09D11/102D06P1/16D06P1/5285D06P5/003
Inventor 区焯元陈港
Owner 广州市华年新材料科技有限公司
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