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Ink-jet ink with light resistance and preparation method thereof

An inkjet ink and dye technology, which is applied in the field of copper complexed monoazo dyes and magenta inkjet inks, can solve the problems of affecting printing quality, fading, and melting, and can improve acid and alkali resistance and light resistance, The effect of high color brilliance and enhanced stability

Active Publication Date: 2014-09-03
上海汇友精密化学品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because dye ink is not covered with a layer of material like pigment ink, under harsh conditions, the molecules are easy to decompose, causing fading, and it will melt when it meets water. Therefore, the fastness of dye ink to water is poor. The water resistance of the image after inkjet printing is not ideal
In addition, because the dye ink will cause a photochemical reaction due to the irradiation of light, the so-called "photochemical reaction" is the reaction caused by the absorption of light energy, which is mainly divided into photochemical decomposition, photochemical synthesis and photochemical sensitization, so that it causes the colorant to fade. Phenomenon, which reduces the light fastness of the dye
Although pigment-based inks have excellent water resistance, the pigments are not as bright as dye-based inks in terms of color brightness, hue and chroma, and the diameter of pigment particles is much larger than that of dyes, so they cannot be uniformly dispersed in the solution, which is easy to use. The pigment condenses in the inkjet ink and precipitates, which leads to the clogging of the nozzle of the ink tank and affects the printing quality
[0004] The dye used as ink should meet the high requirements of good light fastness and bright color at the same time. The currently known magenta dyes cannot meet these requirements at the same time. Even if some dye inks produced have good light fastness, the chromaticity is average. Darker and lower brilliance, such as reactive red 23; in addition, other known dye inks have high brilliance but light fastness can not meet market demand

Method used

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  • Ink-jet ink with light resistance and preparation method thereof
  • Ink-jet ink with light resistance and preparation method thereof
  • Ink-jet ink with light resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of ink-jet ink with the molecular structure of following general formula ①:

[0041]

[0042] in:

[0043] R: Hydrogen, C 1 ~C 8 Alkyl, C 1 ~C 8 The alkoxy group (such as CH 3 O-, CH 3 CH 2 O-, CH 3 CH 2 CH 2 O- etc.), C 1 ~C 8 Alkylthio, halogen, amino, amide, ureido, hydroxyl, sulfonic acid, -Y-COOH or where Y is C 1 ~C 8 Alkyl, C 1 ~C 8 Alkoxyl, C 1 ~C 8 Alkylthio, amino, amido, ureido, carbonyl, R 4 and R 5 Can choose independent or the same hydrogen, halogen, C 1 ~C 8 Alkyl, C 1 ~C 8 Alkoxyl, C 1 ~C 8 Carboxyl, amino, amide, urea, and hydroxyl groups. R, R 4 and R 5 Preferably hydrogen, C 1 ~C 4 Alkyl, C 1 ~C 4 The alkoxy group, the halogen is preferably fluorine or chlorine.

[0044] R 1 :-H, C 1 ~C 4 Alkyl, Ph-, -CH 2 CH 2 OH, -[CH 2 CH(CH 3 )O] p H, -(CH 2 CH 2 O) p One of H, the p is a natural number of 1-8. R 1 Preferably -H, -CH 3 , Ph-.

[0045] R 2 :-H, C 1 ~C 24 ether group, C 1 ~C 24 Alkylami...

Embodiment 2

[0050] In the ink-jet ink described in embodiment 1: R, R 4 and R 5 for hydrogen, C 1 ~C 4 Alkyl, C 1 ~C 4 The alkoxy group; The halogen is fluorine or chlorine; R 1 for -CH 3 .

Embodiment 3

[0052] In the ink-jet ink described in embodiment 1: described C 1 ~C 8 The alkyl group is -CH 3 、-CH2 CH 3 or -CH 2 CH 2 CH 3 ;C 1 ~C 8 The alkoxy group is CH 3 O-, CH 3 CH 2 O- or CH 3 CH 2 CH 2 O-.

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Abstract

The invention discloses an ink-jet ink with high light resistance as shown in a following general formula (1). An ink dye in the invention, not only having a very high color gorgeous degree but also having a good light fastness, is especially suitable for being used as the ink-jet ink. Furthermore, the invention discloses a method for preparing the ink-jet ink dye.

Description

technical field [0001] The present invention relates to an inkjet ink, in particular to a lightfast magenta inkjet ink. The ink uses aniline derivatives containing sulfonyl structures as diazo components, and 1-naphthol-3,8-disulfonic acid or 1-naphthol-3,6,8-trisulfonic acid as coupling components An ink dye obtained in parts is a special copper-complexed monoazo dye. The ink dye is not only suitable for dyeing and printing of paper, wood, textile fiber materials, plastic film or aluminum foil, etc., but also for silk, wool products, synthetic polyamide fibers and polyurethane and cellulose fiber materials, especially for It is used as inkjet ink, and the invention also introduces the preparation method of said inkjet ink dye. Background technique [0002] The inkjet ink contained in the ink tank of the color inkjet printer usually includes magenta ink, magenta ink, yellow ink and black ink. However, in recent years, the inkjet inks in the ink cartridges sold on the mark...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B62/012C09B67/36C09B67/24C09D11/328C09D11/17C09D11/18D06P1/38
Inventor 黄胜梅俞伯洪朱小兵
Owner 上海汇友精密化学品有限公司