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Pigment ink with excellent erasibility

A pigment ink, rub resistance technology, applied in the field of pigment ink, to achieve satisfactory rub resistance, improve reflection density, improve gloss effect

Inactive Publication Date: 2011-05-11
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

Satisfactory gloss can be achieved after adding resin, but not necessarily good scratch resistance at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of pigment ink with good rub resistance, wherein the color paste is selected Clariant black color paste (pigment is pigment black C.I.P.B.7), the percentage by weight is 20%, and the percentage by weight of N-methyl-2-pyrrolidone is 7%, 1 , 2-propanediol weight percentage is 4%, glycerol weight percentage is 5%, Triton X-100 weight percentage is 0.6%, waterborne polyurethane resin Witcobond w-234 weight percentage is 4%, all the other are deionized water. Among them, Witcobondw-234 is a product of Chemtura.

[0040] The preparation method of this inkjet printing pigment ink takes the following steps:

[0041] (1) Measure all components other than the color paste according to the formula, and mix them uniformly to prepare a solvent;

[0042] (2) Measure the color paste according to the formula, place the color paste on a magnetic stirrer, and the stirring speed is 150 rpm;

[0043] (3) Slowly add the uniformly mixed solvent into the color paste at a rate of 2 to 3...

Embodiment 2

[0049] A kind of pigment ink with good abrasion resistance, wherein the color paste is selected from Ciba cyan color paste (pigment is pigment blue C.I.P.B.15:3), the weight percentage is 25%, and the weight percentage of N-methyl-2-pyrrolidone is 7% , 1,2-propanediol weight percentage is 4%, glycerol weight percentage is 5%, Triton X-100 weight percentage is 0.6%, waterborne polyurethane resin Witcobond w-236 weight percentage is 4%, and the rest is deionized water. Among them, Witcobond w-236 is a product of Chemtura.

[0050] The preparation method of this inkjet printing pigment ink is the same as the preparation method involved in Example 1. Fill the prepared inkjet printing pigment ink into the ink cartridge, and print the solid color patch on the photo paper with the EPSON STYLUS C67 (EPSON STYLUS C67) printer. The test results are shown in Table 1.

Embodiment 3

[0053] A kind of pigment ink with good rub resistance, wherein the color paste is selected Ciba magenta color paste (pigment is pigment red C.I.P.R.122), and the percentage by weight is 25%, and the percentage by weight of N-methyl-2-pyrrolidone is 7%, 1,2-propanediol is 4% by weight, glycerol is 5% by weight, Triton X-100 is 0.6% by weight, waterborne polyurethane resin Witcobond w-232 is 4% by weight, and the rest is deionized water. Among them, Witcobond w-232 is a product of Chemtura.

[0054] The preparation method of this inkjet printing pigment ink is the same as the preparation method involved in Example 1. Fill the prepared inkjet printing pigment ink into the ink cartridge, and print the solid color patch on the photo paper with the EPSON STYLUS C67 (EPSON STYLUS C67) printer. The test results are shown in Table 1.

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Abstract

Pigment ink with good erasibility is characterized by being formed by mixing color paste, watercraft urethane resin and deionized water; wherein, according to weight percentage, the color paste accounts for 10-50 percent, the resin accounts for 0.1-15 percent and the rest is the deionized water. The preparation method includes the steps of: measuring out and uniformly mixing all components exceptthe color paste, preparing the mixture into a solvent; measuring the color paste according to the formula and putting the color paste on a stirrer to be stirred, dipping the uniformly mixed solvent into the color paste, and then continuously stirring the mixture and filtering the mixture by a filter, thus obtaining ink used for ink jet printing; and testing the ink. By selecting the added resin, the pigment ink can fulfill satisfying erasibility; no mark remains when the surface of presswork is smeared with a finger after printing; the gloss of printing proof and the reflective density of theprinting proof are improved; and with the watercraft urethane resin added, no adhesion phenomenon occurs when the printing proof is overlapped.

Description

(1) Technical field: [0001] The invention relates to a pigment ink, in particular to a printing pigment ink with good abrasion resistance used in the field of inkjet. (two) background technology: [0002] Ink for inkjet printing can be divided into pigment ink and dye ink. The dye in the dye-based ink exists in a molecular state, so the printed image obtained is clear and the color gradation transition is uniform, but it is easy to fade and has poor water resistance. [0003] The pigment in the pigment ink is granular, and the pigment can be dispersed in water by grafting the pigment or treating it with a dispersant. The printed matter thus obtained has the advantages of light resistance and water resistance, but when the pigment ink is printed on photo paper, most of the pigment particles stay on the surface of the photo paper, so it is difficult to obtain satisfactory rub resistance, and due to the The pigment exists in the state of particles, and the light forms diffuse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/02G01N33/32C09D11/30
Inventor 王文杰
Owner 天津兆阳纳米科技有限公司