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A freeze-curable inkjet printing direct plate-making base coating and preparation method thereof

A technology of inkjet printing and plate base, applied in epoxy resin coating, polyurea/polyurethane coating, coating, etc., can solve the problems of high cost of plate materials, environmental pollution, etc., and achieve the effect of excellent image resolution

Active Publication Date: 2019-07-05
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the printing durability and resolution of the aluminum plate base, the aluminum plate is usually anodized and grained (see CN85100875). During anodic oxidation, a large amount of acid and alkali must be used to pretreat the aluminum plate. Acid and alkali waste liquid not only easily cause great pollution to the environment, but also increase the overall cost of the plate. In the patent CN1295307, natural water-soluble polymers and synthetic water-soluble polymers are used for the image receiving layer. The aluminum plate used The base is still anodized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The water-based phenolic resin that accounts for 40wt% of the total coating, 20wt% zinc oxide (200nm particle size), and 40% water are mixed, stirred at room temperature, and ground for 12 hours with a ball mill or a horizontal sand mill to obtain the coating.

Embodiment 2

[0018] With the water-based phenolic resin that accounts for 40wt% of coating total amount, the silica sol of 10wt%, the zinc oxide (particle size 200nm) of 10wt%, 40% water are mixed, stirred at room temperature, grind 12 hours with ball mill or horizontal sand mill, Obtain the described coating.

Embodiment 3

[0020] The water-based epoxy resin that accounts for 30wt% of coating total amount, the aluminum sol of 30wt%, the aluminum oxide (500nm of particle size) of 20wt%, the water of 20% are mixed, stirred at room temperature, grind 12 hours with ball mill or horizontal sand mill , to obtain the coating.

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PUM

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Abstract

The invention discloses a freeze-solidifiable plate-based coating for ink-jet printing and direct platemaking and a preparation method of the freeze-solidifiable plate-based coating. The freeze-solidifiable plate-based coating is prepared from the following components in parts by mass: 1 to 50 parts of a freeze-solidifiable macromolecular compound, 0 to 40 parts of sol, 5 to 30 parts of oxide particles and 10 to 85 parts of water, wherein the freeze-solidifiable macromolecular compound is selected from one or more of resol resin, waterborne epoxy resin, waterborne polyurethane resin and waterborne acrylic resin. Compared with the prior art, the freeze-solidifiable plate-based coating for ink-jet printing and direct platemaking has the advantages that the coating is uniformly coated on a cleaned plate-based surface and is subjected to low-temperature freezing to form a plate with a hydrophilic function; when the plate is used, an ink-jet printing platemaking machine prints graphical and text information to the plate through platemaking ink to form a graphical and text region, and the plate with the graphical and text information is printed on the machine to obtain a printed product with high image resolution.

Description

technical field [0001] The invention belongs to the technical field of printing plate materials, and in particular relates to a freeze-solidified ink-jet printing direct plate-making plate base coating and a preparation method thereof. Background technique [0002] Inkjet computer to plate technology (Inkjet Computer To Plate) is a technology that uses inkjet printing equipment to directly spray images on the printing plate base. It is a method of lithographic offset printing that is different from traditional PS plate exposure plate making. The current lithographic printing plate base mainly uses aluminum plate base. In order to improve the printing durability and resolution of the aluminum plate base, the aluminum plate is usually anodized and grained (see CN85100875). During anodic oxidation, a large amount of acid and alkali must be used to pretreat the aluminum plate. Acid and alkali waste liquid not only easily cause great pollution to the environment, but also increa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D161/06C09D163/00C09D175/04C09D133/00C09D7/61
Inventor 杨明刘云霞秦明明王思金小玲宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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