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White aqueous jet ink

A water-based inkjet ink, white technology, applied in the fields of materials and chemicals, can solve the problems of printer nozzle clogging and difficulty in meeting printing requirements, etc., and achieve the effect of strong covering power, good adhesion and stable performance

Inactive Publication Date: 2014-02-26
GUANGDONG JANUS SMART GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As the resolution of inkjet printers is getting higher and higher, the aperture of printer nozzles is getting smaller and smaller. Inkjet inks prepared using titanium dioxide as white pigment are extremely easy to cause irreparable blockage of printer nozzles.
Due to its own shortcomings, the white ink of titanium dioxide pigment has been difficult to meet the printing requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take 50g of film-forming emulsion per 2g, add 50g of hollow polymer microsphere emulsion, stir in disperser for 30 minutes, add 100g of deionized water, 5g of film-forming aid, 0.1g of adhesion promoter, defoamer 1 g, 0.1 g of surfactant, stirred in a disperser for 10 minutes, and filtered. The properties of the obtained ink are shown in Table 1. The solid content of the film-forming emulsion is 30%, and the solid content of the hollow polymer microsphere emulsion is 35%.

Embodiment 2

[0036] Based on 2g per portion, take 50g of film-forming emulsion, add 50g of hollow polymer microsphere emulsion, stir for 30 minutes in a disperser, add 100g of deionized water, 5g of film-forming aid, 1g of adhesion promoter, and 1g of defoamer g, 1 g of surfactant, stirred in a disperser for 10 minutes, filtered, and the properties of the obtained ink are shown in Table 1. The solid content of the film-forming emulsion is 30%, and the solid content of the hollow polymer microsphere emulsion is 35%.

Embodiment 3

[0038] Based on 2g per portion, take 44g of film-forming emulsion, add 100g of hollow polymer microsphere emulsion, stir for 30 minutes in a disperser, add 20g of deionized water, 6g of film-forming aid, 2g of adhesion promoter, and 3g of defoamer g, 1 g of surfactant, stirred by a disperser for 10 minutes, filtered, the performance of the ink obtained is the same or similar to that of Example 2, and has good adhesion and stability. The solid content of the film-forming emulsion is 25%, and the solid content of the hollow polymer microsphere emulsion is 20%.

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PUM

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Abstract

The invention discloses white aqueous jet ink. The formula of the ink comprises the following components in parts by weight: 10-50 parts of hollow polymer microsphere emulsion serving as a white pigment, 5-30 parts of filming emulsion and 10-70 parts of de-ionized water, wherein the hollow polymer microsphere emulsion contains one or more of hollow micro-spherical copolymer particles with acrylic acid-styrene, styrene-polyurethane or acrylic acid-polyurethane as shells; and the de-ionized water is filled in cavities of the microspheres. The white jet pink provided by the invention has the advantages of no precipitation, low probability of pore blockage, high whiteness, high covering power, good adhesion, stable performance, environmental friendliness, no pungent odor and suitability for being applied to inkjet printers, flat plate printers and ink jet printers.

Description

technical field [0001] The invention belongs to the technical fields of materials and chemicals, and in particular relates to a white water-based inkjet ink. Background technique [0002] When inkjet printing is carried out on dark substrates, due to the absorption of light by the dark substrates, the color patterns cannot appear. It is necessary to spray a white ink coating on the substrates first to reduce the color absorption of the upper ink and make the upper layers Ink colors are vivid and bright. Most of the white inkjet inks currently on the market are oily, and the volatilization of organic solvents (toluene, xylene, industrial alcohol, etc.) will pollute the environment, have a pungent smell, and cause harm to human health. [0003] In addition, most of the white inkjet inks on the market use titanium dioxide as the white pigment, and no alternative white pigment has been developed yet. The primary particle size of titanium dioxide is small, the specific surface ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C09D11/107C09D11/322
Inventor 林智健陈盛洪毕英慧王长明谢守德
Owner GUANGDONG JANUS SMART GRP CO LTD
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