Multipurpose nanometer pigment-based colorant and preparing method thereof
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A nano-scale, colorant technology, applied in the direction of pigment paste, organic dyes, etc., can solve problems such as environmental pollution, and achieve the effects of low cost, easy promotion and simple process
Inactive Publication Date: 2011-09-14
刘光君
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[0002] At present, the colorants used in paints are mainly azo dyes and
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Embodiment 2
[0032] The raw material that the embodiment 2-brilliant yellow nano-colorant of multipurpose nanoscale pigment type coloring agent comprises and its weight percent content are:
[0037] The raw material that the embodiment 3-extremely black nano colorant of multi-purpose nanoscale pigment type coloring agent comprises and its weight percent content are:
[0042] Make the embodiment of multi-purpose nanoscale pigment type coloring agent method, comprise the following steps:
[0043] (1) add 80 parts (weight) of propylene glycol monomethyl ether solvent in stirring kettle earlier;
[0044] (2) Add 5 parts (weight) of water-oil dual-purpose wetting agent, the stirring speed is 250-350RPM / MIN, preferably 300RPM / MIN, stir and mix evenly;
[0045] (3) Add 10 parts (weight) of pigment, stir at 400-600 RMP / MIN, stir for 10-20 minutes, preferably 500 RMP / MIN, stir for 1 minute, stir and mix well;
[0046] (4) Add water-oil dual-purpose dispersant, the rotation speed...
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Abstract
The invention discloses a multipurpose nanometer pigment-based colorant and a preparing method thereof, and aims at solving the problem of environmental pollution of pigment-based colorants. The colorant comprises the following raw materials on a weight basis: 76-84% of propylene glycol ether environmentally friendly solvents, 8-12% of organic pigments or carbon black pigments, 4-6% of high molecular unsaturated polycarboxylic acid, 4-6% of polyurethane modified high molecular compounds. The method for preparing the colorant comprises the following steps: adding the propylene glycol ether solvent into a stirred tank; adding the high molecular unsaturated polycarboxylic acid, stirring the mixture and mixing well; adding the pigment, stirring the mixture and mixing well; adding the polyurethane modified high molecular compound, stirring the mixture and disperse for proper time; adding the materials into a grinder for ultrafine grinding until the granularity of pigment granules meets nanometer specification size, stopping grinding, and discharging. The colorant can be used for a pigment-based colorant in a plurality of fields such as printing ink, printing and dyeing, paint, etc.
Description
technical field [0001] The invention relates to a coloring agent which can be used in various fields such as ink, printing and dyeing, and coating and its preparation method, especially a kind of colorant which can be dissolved with water, organic solvent and alcohol solvent and is used in many fields such as ink, printing and dyeing, coating, etc. Pigment colorants in various fields and their preparation methods. Background technique [0002] At present, the colorants used in paints are mainly azo dyes and metal complex dyes, but such colorants will cause environmental pollution. In 2002, the European Commission decided to ban the use of azo dyes with carcinogenic aromatic amines. In 2003, the European Commission further stipulated that the use and sale of chromium-containing azo dyes should be banned in the EU's textile, clothing and leather products markets, and it took effect in 2004. In addition, the EU standard EN 71-3 and the American standard ASTM F963 have strict ...
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