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Green ink for ink jet printing

An inkjet printing and ink technology, applied in the field of green water-based pigment ink, can solve the problems of unsuitable high-precision, high-speed inkjet printing nozzles, unsuitable for new ink formulation systems, etc., and achieve good jetting stability and dispersion stability. Maintain good, fast results

Inactive Publication Date: 2012-06-13
天津兆阳纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned patents mainly consider the development of a dispersant that can make the pigment dispersion more stable, and its application field can be coating, ink or inkjet, but for the above-mentioned various dispersants, they are not suitable for high-precision and fast inkjet printing The print head is not suitable for the new ink formulation system that matches the new print head

Method used

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  • Green ink for ink jet printing
  • Green ink for ink jet printing
  • Green ink for ink jet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Mix 12 parts of C.I. Pigment Green 36, 13 parts of dispersant Jeffesperse X3204 and 75 parts of deionized water with a high-speed shear mixer to obtain a shear dispersion, and then grind and disperse the above shear dispersion with a grinder for 2 hours , to obtain dispersion A.

[0055] Mix 4 parts of 2-pyrrolone, 12 parts of glycerol, 4 parts of diethylene glycol n-butyl ether, 1 part of Surfynol465, 0.5 parts of BYK348, 1 part of Joncryl 67, 0.2 parts of sodium hydroxide and 52.3 parts of deionized water, Obtain an ink solution.

[0056] Add the prepared ink solution dropwise to 25 parts of the above-mentioned dispersion liquid A, mix evenly, and filter through a filter with a pore size of 0.5 micron to obtain a green water-based pigment ink.

Embodiment 2

[0058] Mix 4 parts of 2-pyrrolone, 12 parts of glycerol, 4 parts of diethylene glycol n-butyl ether, 1 part of BYK348, 1 part of Joncryl 67, 0.2 parts of sodium hydroxide and 52.3 parts of deionized water to obtain an ink solution.

[0059] The prepared ink solution was added dropwise to 25 parts of the dispersion liquid A prepared in Example 1, and after mixing evenly, it was filtered with a filter with a pore size of 0.5 micron to obtain a green water-based pigment ink.

Embodiment 3

[0061] Mix 12 parts of C.I. Pigment Green 7, 13 parts of dispersant Jeffesperse X3204 and 75 parts of deionized water with a high-speed shear mixer to obtain a shear dispersion, and then grind and disperse the above shear dispersion with a grinder for 2 hours , to obtain dispersion B.

[0062] Mix 4 parts of 2-pyrrolone, 12 parts of glycerin, 4 parts of diethylene glycol n-butyl ether, 1 part of BYK348, 1 part of Joncryl 67, 0.2 parts of sodium hydroxide and 52.8 parts of deionized water to obtain an ink solution.

[0063] Add the prepared ink solution dropwise to 25 parts of the above-mentioned dispersion liquid B, mix evenly, and filter through a filter with a pore size of 0.5 micron to obtain a green water-based pigment ink.

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Abstract

The invention relates to green ink for ink jet printing. The ink comprises a green pigment, a dispersing agent and water, wherein the green pigment is phthalocyanine green pigment; and the dispersing agent comprises one or more substances which have infrared spectrum absorption peaks in the following positions: 3300-3500 cm<-1>, 2070-2170 cm<-1>, 1590-1690 cm<-1>, 1490-1530 cm<-1>, 1436-1476 cm<-1>, 1329-1369 cm<-1>, 1277-1317 cm<-1>, 1229-1269 cm<-1>, 1163-1203cm<-1>, and 1034-1132 cm<-1>. The green ink still has good jet stability under the condition of quick ink jet printing, and has excellent dispersion stability; and compared with the ink in the prior art, the green ink is more suitable for high-precision and high-speed ink jet printing jetting heads.

Description

technical field [0001] The invention relates to an ink-jet ink, in particular to a green water-based pigment ink for ink-jet printing. Background technique [0002] Inkjet technology is a non-contact, pressure-free, and plate-free printing technology. It is mainly divided into thermal foaming type and piezoelectric type according to the working method. Thermal foaming technology is to heat the nozzle to make the ink generate bubbles and spray it onto the printing medium. Piezoelectric technology uses the characteristic of piezoelectric ceramics to bend and deform under the action of voltage changes. When the image information voltage is applied to the piezoelectric ceramics, the piezoelectric ceramics will stretch and vibrate and deform with the change of the image information voltage, and make the sprinkler head The ink is ejected evenly and accurately. On the basis of piezoelectric technology, relevant manufacturers have developed a micro-piezoelectric printing head tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/02C09D11/322C09D11/326
Inventor 王文杰石金永
Owner 天津兆阳纳米科技有限公司
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