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Epoxy resin material for intaglio roller

A technology of epoxy resin and gravure plate roller, applied in printing, stamping and other directions, can solve the problems of heavy pollution, heavy weight, high cost, etc., and achieve the effect of long service life, light weight and easy processing

Inactive Publication Date: 2004-01-21
BEIJING INST OF CLOTHING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional gravure plate made of metal materials has the following disadvantages: A. High cost; B. Large pollution; C. Heavy weight
According to the different types of prepolymers, curing agents and additives, thousands of types have been formed, and their application fields are also different, but there is no report on the application of gravure rollers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Mix 100g novolac polyglycidyl ether epoxy resin (model: F51) with 32g diaminodiphenyl sulfone and 20g silica powder at 80°C, stir evenly, and vacuum (≤100Pa) at 80°C Degassing for 30min. Then spray the mixture evenly on the surface of the polished cast iron pipe, control its thickness to be less than 1mm, and cure at 180°C for 3 hours. The material has high hardness and good wear resistance, and can be used as a gravure roll.

Embodiment 2

[0016] Mix 100g of glycidylamine epoxy resin (type: H80) with 48g of diaminodiphenylmethane and 70g of alumina powder at 80°C, stir evenly, and vacuum defoam at 80°C for 1 hour. Then spray the mixture evenly on the surface of the polished cast iron pipe, control its thickness to be less than 1mm, and cure it at 160°C for 2 hours. The material has high hardness and good wear resistance, and can be used as a gravure plate roller.

Embodiment 3

[0018] Mix 100g of naphthalene polyglycidyl ether-containing epoxy resin with 26g of thiomethyltoluenediamine and 40g of corundum at 80°C, stir evenly, and vacuum defoam at 80°C for 30min. Then extrude the mixture from a long and narrow mouth, form a film (thickness less than 1mm), solidify at 200°C for 2 hours, stick and coat the film on the surface of the cast iron pipe. The material has good hardness and wear resistance and can be used as a gravure roll.

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PUM

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Abstract

The present invention is epoxy resin material used for intaglio roller and the epoxy resin material is used to replace metal material in printing and dyeing. The epoxy resin material comprising epoxy resin prepolymer, curing agent and additive in certain proportion is coated to and cured on the surface of cast iron tube, and the coated cast iron tube is then polished. The epoxy resin material has enough surface hardness and wear resistance to being used in making intaglio roller and has also the advantages of low cost, no pollution, light weight, long service life, easy machining, etc.

Description

technical field [0001] The invention belongs to the scope of printing and printing and dyeing materials, and in particular relates to an epoxy resin material for gravure rollers made of epoxy resin materials instead of metal. Background technique [0002] Gravure is a method of printing and transfer printing. The gravure roll has always been made of metal. The most typical one is cast iron as the core, and three layers of different metals are sequentially plated on the cast iron: nickel, copper, and chromium. Nickel plating is to provide the bonding force between iron and copper; copper plating is because the hardness of copper is low, which is convenient for engraving; after engraving, chrome plating can be used to obtain excellent finish and extremely high hardness. However, the traditional gravure plate made of metal materials has the following disadvantages: A. High cost; B. Large pollution; C. Heavy weight. Thereby limiting the application of gravure plate technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41K1/44C08L63/04
Inventor 张天骄纪小妹蔡韦伟
Owner BEIJING INST OF CLOTHING TECH