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Dyestuff composition with high color fastness to sunlight and application thereof

A dye composition and color fastness technology, applied in the field of dyes, can solve the problems of color change and final color difference, unable to guarantee color uniformity, etc.

Inactive Publication Date: 2016-10-12
HANGZHOU SHINYANG SAMWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this preparation can be used for dyeing by blending dyes and UV absorbers, it cannot guarantee the uniformity of coloring due to the difference in the particle size of the dyes and UV absorbers. The addition of UV absorbers when dyeing will cause the original color to change and cannot cause the final color to be far from the target color

Method used

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  • Dyestuff composition with high color fastness to sunlight and application thereof
  • Dyestuff composition with high color fastness to sunlight and application thereof
  • Dyestuff composition with high color fastness to sunlight and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0073] Mix the ultraviolet absorber and the dye, add water and / or organic solvent, and dispersant, perform sand grinding, and spray dry to obtain the dye composition described in this application. Wherein, the weight ratio of the total amount of dye to the amount of UV absorber is 1:0.05-0.5; the weight ratio of the total amount of dye and UV absorber to water is 1:2-5; if additives are added to the system , then the consumption of auxiliary agent is 50~200wt% of the total consumption of described dyestuff and ultraviolet absorber; If organic solvent is added in the system, then the weight ratio of the consumption of organic solvent and water consumption is 1: 50~500. See Table 1 for each component and its consumption in Examples 1-7.

[0074] Prepare the prepared disperse dye composition with deionized water to prepare disperse dye suspensions with a concentration of 0.1-20.0g / 100mL; take 20mL of uniformly dispersed disperse dye suspensions, add 80-130mL deionized water to mi...

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PUM

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Abstract

The invention discloses a dyestuff composition with high color fastness to sunlight. The dyestuff composition is prepared by a method comprising the following steps: mixing an ultraviolet absorbent with a dyestuff; adding water and a dispersant; sanding, atomizing and drying to obtain the dyestuff composition. According to the dyestuff composition with high color fastness to sunlight, disclosed by the invention, the particle size can be strictly controlled, the mixing uniformity is strictly controlled, the dispersion uniformity of the dyestuff composition in a dyeing solution is guaranteed and colors can be accurately controlled.

Description

technical field [0001] The invention belongs to the field of dyes, and more specifically relates to a dye composition with high color fastness to sunlight and its application. Background technique [0002] In recent years, many fields such as automotive textiles have a great demand for materials with high light fastness. This is because automotive textiles are exposed to high temperature for a long time, and the temperature difference between day and night is large, so they are prone to fading, and it is difficult to maintain a good color for a long time. Therefore, the dyes for dyeing automotive textiles must meet the requirements for light fastness. Especially to meet the dyeing fastness to light at high temperature. [0003] The light fastness of conventional dyes is difficult to meet the needs of automotive textile dyeing. In order to meet the demand, there are dye compositions in the prior art that compound dyes with other substances to obtain high color fastness to l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22D06P1/20D06P1/18D06P3/54D06P1/642D06P1/651
CPCC09B67/0046D06P1/18D06P1/20D06P1/6426D06P1/65118D06P3/54
Inventor 潘行平
Owner HANGZHOU SHINYANG SAMWOO FINE CHEM CO LTD
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