Water-based dye ink and application thereof

Abstract

The invention discloses a water-based dye ink and an application thereof. The water-based dye ink comprises the following components in percent by weight: 0.2 to 12 percent of water-soluble dye, 55 to 80 percent of modified acrylic resin emulsion, 0.01 to 1 percent of ultraviolet absorbent and balance of water, and different additives can be added. The dye ink can be applicable to the fields such as jet ink, cipher paint ink, textile printing ink, water-type printing ink, fountain pen ink and water ball pen ink, and has the advantages of water resistance, oil resistance, scratch resistance, illumination resistance, high temperature resistance, low temperature resistance, good color reducibility, duration and the like.

Description

technical field [0001] The invention relates to an ink and its application, in particular to a water-based dye ink and its application. Background technique [0002] At present, there are mainly two types of inks: dye inks and pigment inks. [0003] Dye ink is a fully dissolved ink at the molecular level. This ink is a complete composite solution. The probability of clogging the ink head during inkjet printing is very small. After inkjet printing, it is easy to be absorbed by the material. Low ink, so it is the first choice for printing pictures, making color printing business cards, etc. However, its disadvantage is that it is not water-resistant and oil-resistant, and because the dye molecules decompose quickly under ultraviolet radiation, the color will fade obviously within a month after being used outdoors under ultraviolet light, which affects its application in life, such as long-term preservation of documents, Large outdoor advertising and other fields. [0004] P...

AI Technical Summary

Problems solved by technology

However, most of the pigment inks will leave the color material on the surface, so even if you print on a flat paper such as glossy paper, you cannot print a glossy image. In addition, the pigment ink has a long grinding time, The process is complicated, and the manufacturing cost of pigment ink is relatively high, so the price is also more expensive than dye ink, and the price difference is as high as two to four times; and pigment ink is easy to delaminate and precipitate, and the storage is unstable

Pigment colorants have incomplete color spectrum, not bright enough colors, and poor transparency. In view of the above factors, pigment inks are mainly used for outdoor inkjet painting temporarily, and are rarely used by individual users.

[0005] The existing dye inks and pigment inks are not perfect enough. How to obtain an ink that is resistant to water, oil, light, wide color spectrum, bright colors and low cost, so that it can be used in outdoor inkjet printing and other fields, and has the advantages of long-lasting effects, etc. Many inventors have made efforts in this regard, but the effect is not satisfactory. This has become a technical problem that those skilled in the art have always been eager to solve, but have not been able to succeed.

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