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Water-based ink printing plate material and preparation method for same

A water-based ink and plate material technology, applied in printing plate preparation, lithographic printing equipment, printing plates, etc., can solve the problems that the principle of mutual exclusion of water and oil cannot be realized, and the graphic area and the non-graphic area cannot be distinguished, etc., to achieve printing Good adaptability, enhanced hydrophobicity and oleophobicity, and high printing durability

Active Publication Date: 2016-08-03
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if water-based ink is used for traditional lithographic printing plates, the most basic principle of water-oil mutual repulsion cannot be realized, and the graphic and non-graphic areas will not be able to be distinguished.

Method used

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  • Water-based ink printing plate material and preparation method for same
  • Water-based ink printing plate material and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The plate material for water-based ink prepared in this example has the structure of a plate base, an ink repellent layer, and a graphic layer from bottom to top.

[0026] The material of the plate base is selected from aluminum.

[0027] The ink repellent layer is coated on the plate base by the fluorosilicon nanocomposite material with a spin coater at a speed of 4500rpm, and the coating amount is 2.5g.m -2 ; Then it is obtained after curing at 200°C for 20min, and the base is degreasing before coating. Finally, the contact angles were measured with water and diiodomethane.

[0028] The graphic layer is made by inkjet printing on the surface of the ink repellent layer, and the spraying amount is 1g.m -2 , and then obtained after curing at 150 °C for 20 min.

[0029] The preparation method of the fluorosilicon nanocomposite material: add 1 g of perfluoroalkyl ethyl acrylate and 0.2 g of propyl methacrylate into a three-necked flask, and then add 12 g of methyl ethyl...

Embodiment 2

[0032] The plate material for water-based ink prepared in this example has the structure of a plate base, an ink repellent layer, and a graphic layer from bottom to top.

[0033] The material of the plate base is selected from aluminum.

[0034] The ink repellent layer is coated on the plate base by the fluorosilicon nanocomposite material with a spin coater at a speed of 4500rpm, and the coating amount is 2.8g.m -2 ; Then it is obtained after curing at 200°C for 20min, and the base is degreasing before coating. Finally, the contact angles were measured with water and diiodomethane. The graphic layer is made by inkjet printing on the surface of the ink repellent layer, and the spraying amount is 1.3g.m -2 , and then obtained after curing at 150 °C for 20 min.

[0035]The preparation method of the fluorosilicon nanocomposite material: add 1 g of perfluoroalkyl ethyl acrylate and 0.2 g of propyl methacrylate into a three-necked flask, then add 12 g of methyl ethyl ketone solv...

Embodiment 3

[0038] The plate material for water-based ink prepared in this example has the structure of a plate base, an ink repellent layer, and a graphic layer from bottom to top.

[0039] The material of the plate base is selected from aluminum alloys.

[0040] The ink repellent layer is coated on the plate base by the fluorosilicon nanocomposite material with a spin coater at a speed of 4500rpm, and the coating amount is 2.6g.m -2 ; Then it is obtained after curing at 200°C for 20min, and the base is degreasing before coating. Finally, the contact angles were measured with water and diiodomethane.

[0041] The graphic layer is made by inkjet printing on the surface of the ink repellent layer, and the spraying amount is 1.5g.m -2 , and then obtained after curing at 150 °C for 20 min.

[0042] The preparation method of the fluorosilicon nanocomposite material: add 1 g of perfluoroalkyl ethyl acrylate and 0.2 g of propyl methacrylate into a three-necked flask, then add 12 g of methyl ...

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Abstract

The invention discloses a water-based ink printing plate material and a preparation method for the same. The printing plate material structurally comprises a plate base, an ink-repulsive layer and an image-text layer from bottom to top, wherein the ink-repulsive layer is made from fluorinated polysiloxane nano-composite material and coated on the plate base via a spinning way with coating amount of 2.4 to 3.9g.m-2; the ink-repulsive layer is achieved when the fluorinated polysiloxane nano-composite material is solidified for 10 to 30 minutes at the temperature of 120 to 200 DEG C; and the image-text layer is achieved when ink is sprayed on the ink-repulsive layer with spraying amount of 0.8 to 2.5g.m-2 and solidified for 10 to 30 minutes at the temperature of 120 to 200 DEG C. A traditional planographic printing method is broken through and a water-oil mutual-exclusive principle is employed; an image-text area with hydrophic ink and a non-image-text area with water-repellent area are constructed on a planographic printing surface; and a technical scheme of traditional planographic printing material having to employing water or similar "fountain solution" to occupy a blank area can be avoided. With only water-ink (without of water or other fountain solution), water-based ink image-text area and non-water-based ink blank area can be separated on the plate material surface; and printing patterns can be formed when transferred to a printing material surface.

Description

technical field [0001] The invention belongs to the technical field of printing plate making, in particular to a plate material for water-based ink and a preparation method thereof. Background technique [0002] Lithographic printing has become the most widely used printing method due to its simple plate-making work, low cost, high printing accuracy, easy printing plate reproduction and large-scale printing. However, in the field of gravure printing, flexo printing and other printing methods, environmentally friendly water-based inks can already be used, while lithographic printing methods cannot use water-based inks due to the limitation of printing principles. [0003] Gravure printing, flexo printing and other printing methods, in the printing process, use a "master" with a physical concave-convex structure to achieve printing. During the printing process, the water-based ink is first stored on the surface of the "master" through the concave-convex structure (such as The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N1/12B41N1/22
CPCB41C1/1016B41N1/003B41C2201/04B41C2201/10B41C2201/14B41C2210/16
Inventor 杨明宋延林刘云霞李美丽王坤婵
Owner INST OF CHEM CHINESE ACAD OF SCI
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