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Method for adjusting magenta pigment colour difference and product thereof

A magenta and color difference technology, applied in the field of adjusting the color difference of magenta pigments

Inactive Publication Date: 2009-12-09
天津兆阳纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the method of using two pigments of different color systems with large color differences to adjust the color difference of magenta pigment ink is still blank.

Method used

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  • Method for adjusting magenta pigment colour difference and product thereof

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Embodiment 1

[0033] Embodiment 1: a method for adjusting the color difference of magenta pigment (the ratio of C.I. Pigment Violet 19 and C.I. Pigment Yellow 74 is 719: 1) and its products and applications:

[0034] With the C.I. pigment purple 19 of 17.975 parts of DIC companies, the C.I. pigment yellow 74 of 0.025 parts of Ciba companies, the dispersant EDAPLAN 482 of 9.470 parts of Ming Ling company (MUNZING), its active ingredient content 85.5%, 72.530 parts of deionized water with high-speed shears Mix with a stirrer for 1 hour until uniform to obtain a shear dispersion, and then grind 300 g of the shear dispersion in a 0.14 L grinder for 2 hours to obtain a magenta pigment dispersion. The ratio of C.I. Pigment Violet 19 and C.I. Pigment Yellow 74 is 719:1; select 30 parts of magenta pigment dispersion prepared in this example, 4 parts of 2-pyrrolidone as penetrating agent, 4 parts of glycerol and 6 parts of ethyl alcohol as humectant Glycol, surfactant selects 1 part of DS-4 of Rhodi...

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Abstract

A method for adjusting magenta pigment colour difference is characterized in that C.I. pigment violet 19 is mixed with C.I. pigment yellow 74 to adjust the colour difference of magenta pigment ink. The preparation method comprises the following steps: mixing magenta pigments with different colour differences, dispersant and ionized water in a container while stirring, mixing the mixture in a high-speed shear mixer evenly for 1h, grinding the mixture in a grinder, stirring the mixture in a blender to obtain dispersion; mixing penetrant, humectant, surfactant, fungicide and pH regulator while stirring to prepare a solvent, dripping the solvent into the mixed pigment dispersion, filtering the obtained solution by a filter to obtain magenta pigment ink. As the proportion of the C.I. pigment violet 19 and C.I. pigment yellow 74 in magenta pigment ink decreases continuously, the colour difference Delta E of the magenta pigment ink firstly decreases and then increases to obtain the best Delta E value, thus obtaining the best color of printed matter required by the users.

Description

(1) Technical field: [0001] The invention relates to a method for adjusting the color difference of a pigment, in particular to a method for adjusting the color difference of a magenta pigment used in the inkjet field and a product thereof. (two) background technology: [0002] At present, color inkjet inks on the market are basically divided into two types: dye-based inks and pigment-based inks. The dye in the dye-based ink exists in a molecular state, and the resulting printed image is clear and the color transition is uniform, but the water resistance and light resistance of the printed image are poor. The pigments in pigment-based inks exist in the form of particles, and the printed matter obtained from this has the advantages of light resistance and waterproof, but the accuracy of color is not as good as that of dye inks, and it is easy to block the inkjet head and reduce the printing quality. [0003] For color inkjet inks, the inks formulated with a single dye color ...

Claims

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Application Information

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IPC IPC(8): C09B67/20C09B67/22C09D11/02C09D11/322
Inventor 刘小波张俊玲
Owner 天津兆阳纳米科技有限公司
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