Ultrariolet rag solidifying printing lustering oil and its preparation method

A technology of ultraviolet light and diglycidyl ether, applied in the direction of ink, application, coating, etc., can solve the problems of compound volume shrinkage, poor ink adhesion, large deformation of printed matter, etc., and achieve enhanced adhesion, good weather resistance, and durability Strong yellowing effect

Active Publication Date: 2008-11-12
SHANTOU DONGFENG PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the shortening of the chain caused by the bond in the free radical polymerization, the volume of the compound shrinks, resulting in poor ink adhesion, poor flexibility, and large deformation of printed matter
In addition, the unsaturated double bonds that have not been completely reacted by free radical polymerization are easy to form chromophoric groups and cause yellowing of the cured varnish coating, and the acrylic monomers often used in free radical curing varnishes can cause harmful stimulation to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of ultraviolet curing printing varnish and preparation method thereof

[0016] The preparation method of this UV-curable printing varnish is characterized in that the following steps are arranged successively:

[0017] Under the condition of avoiding sunlight or ultraviolet light irradiation and relative air humidity being less than 60%, by weight percentage, slowly mix 50% bis(3,4-epoxycyclohexylmethyl)-adipate, 20% Add diethoxylated bisphenol A diglycidyl ether, 26% long-chain trihydric alcohol, and 1% organic silicon additives into the mixing container, stir while adding, and stir at a speed of 540 rpm; Scrape the sample on the degree meter to check whether the silicone additives are mixed evenly; after the silicone additives are mixed evenly, add 3% sulfonium ion hexafluoroantimonate, and stir until they are evenly mixed; the temperature of the mixed material is less than 50°C during the operation .

[0018] Obtain a kind of UV-curable printing varnish afte...

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PUM

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Abstract

An ultraviolet solidified polishing oil for print is prepared from epoxy prepolymer, polyol, polyaryl thionium salt and assistant through proportionally and sequentially mixing at the temp lower than 50 deg.C. Its advantages are no volume shrinking, high adhesion and toughness, and high resistance to yellowing.

Description

technical field [0001] The invention relates to ink, in particular to an ultraviolet light-curable printing varnish and a preparation method thereof. Background technique [0002] Ultraviolet (UV) curing is an energy-saving, environmentally friendly, and efficient technology. Among them, the formula system for curing by free radicals has been greatly developed in printing inks. UV screen printing inks, UV offset printing inks, and UV flexographic inks have been widely used. In use, they have the advantages of fast curing, instant drying, high gloss, excellent chemical resistance, and good weather resistance, but there are also many shortcomings in application. Due to the chain shortening caused by the bond in the free radical polymerization, the volume of the compound shrinks, which makes the ink adhesion poor, poor flexibility, and large deformation of the printed matter. In addition, the unsaturated double bonds that have not been completely reacted by free radical polyme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/00C09D7/12C09D163/00
Inventor 赵希华
Owner SHANTOU DONGFENG PRINTING CO LTD
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