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UV-curable ink used in inkjet printing direct-to-plate, and preparation method and application thereof

A technology of inkjet printing and ink, which is applied in the field of UV curing ink and its preparation of inkjet printing direct plate-making technology, and can solve the problems of affecting printing plate durability, image resolution, image drop-out, etc.

Inactive Publication Date: 2013-03-27
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solvent in the ink volatilizes slowly and requires a higher temperature to dry, and when the printing plate is printed on the machine, the image and text area in the printing plate are prone to image drop-off when wiped with alcohol-containing plate cleaning paste, making the printed The decline in quality affects the further improvement of the printing plate's durability, and the resolution of the image is also greatly affected

Method used

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  • UV-curable ink used in inkjet printing direct-to-plate, and preparation method and application thereof
  • UV-curable ink used in inkjet printing direct-to-plate, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] 40wt% of hydroxypropyl acrylate, 40wt% of urethane acrylate prepolymer, 0.1wt% of benzoin isobutyl ether, 0.01wt% of Pigment Violet-19, and the balance Disperbyk101 is mixed; it is ground with a grinding equipment for 2 hours at room temperature, and after multi-stage filtration, the filtrate is UV curable ink.

Embodiment 2

[0026] 90wt% butyl acrylate, 1wt% polyester acrylate prepolymer, 5wt% 2-isopropylacetophenone, 2wt% Pigment Black-7, and the balance Efka 44 Mixing; Grind with grinding equipment at room temperature for 15 hours, after multi-stage filtration, the filtrate is UV curing ink.

Embodiment 3

[0028] 50wt% of acryloyl morpholine, 40wt% of pentaerythritol tetraacrylate, 5wt% of urethane acrylate prepolymer, 1wt% of 2,4-diethylthioxanthone, 2wt% of the total UV curable ink The oil-soluble black, and the remainder of Efka 46 are mixed; it is ground for 10 hours with a grinding equipment at room temperature, after multi-stage filtration, the filtrate is UV curing ink.

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Abstract

The invention relates to a UV-curable ink used in inkjet printing direct-to-plate, and a preparation method and an application thereof. According to the invention, according to a total weight of the UV-curable ink, 20-90wt% of a photoreactive monomer, 1-40wt% of an acrylic ester prepolymer, 0.1-5wt% of a photoinitiator, 0.01-5wt% of a coloring agent, and balance of a dispersing agent are mixed and grinded; the mixed liquid is filtered; and the filtrate is the UV-curable ink provided by the invention. The UV-curable ink used in inkjet printing direct-to-plate is sprayed on the surface of a blank plate base or a plate base with a coating by using an inkjet printer, such that patterns are formed; and the blank plate base or the coated plate base with the UV-curable ink used in inkjet printing direct-to-plate is cured for 1-60 seconds under ultraviolet light with a wavelength of 300-450nm. The curing speed of the obtained printing plate is high, and good printability and printing durability are provided when printing is carried out. A paint product resolution reaches 150 lines.

Description

Technical field [0001] The invention relates to the field of printing plate-making inks, and more particularly to a UV curing ink used in inkjet printing direct plate-making technology, and a preparation method and application thereof. Background technique [0002] Inkjet Computer To Plate technology is the use of inkjet printers to spray plate-making ink on the surface of the metal plate base or polymer plate base to form lipophilic graphic areas. The areas where the ink is not sprayed are hydrophilic and non-sprayed. Graphic area, using the contrast between the hydrophilic and lipophilic areas of the graphic area and the non-graphic area to achieve printing plate-making technology. Inkjet printing direct plate-making technology avoids post-processing processes such as exposure, development, washing, and fixing, and the resulting printing plate has better resolution and printing durability after machine printing. At present, the ink for direct plate-making in inkjet printing is...

Claims

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Application Information

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IPC IPC(8): C09D11/10B41C1/10B41J2/01
CPCC09D11/10C09D11/101C09D11/30
Inventor 秦明明周海华李英锋宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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