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magenta ink composition

A composition, magenta technology, applied in inks, household appliances, applications, etc., can solve the problems of difficult to find dyes, dull color, unsatisfactory light fastness, etc.

Active Publication Date: 2012-02-08
ZHUHAI FREE TRADE ZONE NEOJET APOLLOJET IMAGING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because dyes with high light fastness are usually dull in color, they cannot meet the needs of high-quality printing, while dyes with bright colors are usually low in light fastness and are easy to fade
Therefore, it is difficult to find dyes that meet all the above requirements, and formulate inkjet inks with satisfactory performance, especially magenta inks
[0004] CN 1393493A Chinese published patent discloses a red ink-jet ink with high light fastness and water fastness, which uses reactive red 180 with high light fastness level, acid red 52 with bright color and reactive red dye in combination. Good light fastness and bright color, but because the light fastness level of Reactive Red 180 is only 4, and the light fastness level of Acid Red 52 is only 2-3, so the light fastness is still unsatisfactory

Method used

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  • magenta ink composition

Examples

Experimental program
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Effect test

Embodiment 1

[0018] This example is a magenta ink composition prepared by using reactive red 23 with a light fastness level of 7 and reactive red 24 with a light fastness level of 5, water, organic solvents, additives, etc. according to the ratio of Table 1. Use the CANON I950 machine to print a color block on 80g paper, measure the color density of the color block, and then irradiate it under the UV lamp for 1.5 hours, then measure the color density, and calculate the color density decay rate of the color block before and after UV light . The greater the color density attenuation rate, the worse the light fastness. On the contrary, the lower the color density attenuation rate, the better the light fastness. The corresponding experimental data of this embodiment are shown in Table 4.

[0019] Table I

[0020] Proportion

Embodiment 2

[0022] In this example, reactive red 23 with a light fastness level of 7, reactive red 24 with a light fastness level of 5, a small amount of brightly colored acid red 52 with a light fastness level of 2-3, water, organic solvents, and additives etc. by the magenta ink composition that table two proportioning is made. Use the CANON I950 machine to print a color block on 80g paper, measure the color density of the color block, and then irradiate it under the UV lamp for 1.5 hours, then measure the color density, and calculate the color density decay rate of the color block before and after UV light . See Table 4 for relevant data.

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Abstract

The invention provides a fuchsin ink composition, which contains a fuchsin dye mixture, an organic solvent, an auxiliary agent and water, wherein the fuchsin dye mixture contains fuchsin dye A with sun-proof level of more than five and fuchsin dye B with sun-proof level of no less than four. The composition has the advantages of good sun-proof capability, wide color range and the like.

Description

technical field [0001] The invention relates to a water-soluble ink composition used in an inkjet printing device, especially a red water-soluble ink composition. Background technique [0002] Inks for inkjet printing devices are generally classified into dye-based inks and pigment-based inks according to the colorants used. Among them, dye-based inks are divided into water-soluble inks and solvent-based inks according to the main solvent used. [0003] Water-soluble ink uses water as the main solvent, so its dye must be fully soluble in water to produce a stable solution that can produce a suitable density on the ink-receiving part and will not precipitate during long-term storage. In order to obtain high-quality photo-simulation printing effect, it is also necessary for the dye to have good light fastness-light stability while providing bright colors. Because dyes with high light fastness are usually dull in color, they cannot meet the needs of high-quality printing, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/02C09D11/328
Inventor 蔡金求
Owner ZHUHAI FREE TRADE ZONE NEOJET APOLLOJET IMAGING MATERIALS