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Radical‑Cation‑Oxidative Conjunctival Triple Cure Engraving Gravure Ink

A technology of oxidized conjunctiva and triple curing, applied in inks, household utensils, applications, etc., can solve problems such as poor tolerance and poor compatibility between components, and achieve the effect of increasing curing depth and shortening the reprinting cycle

Active Publication Date: 2017-10-13
CHINA BANKNOTE INK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dual-cure gravure ink involved in this patent is prepared by physical mixing of base inks of free radical curing and oxidative conjunctival drying. This mixing method has poor compatibility and poor tolerance between components. And other issues

Method used

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  • Radical‑Cation‑Oxidative Conjunctival Triple Cure Engraving Gravure Ink
  • Radical‑Cation‑Oxidative Conjunctival Triple Cure Engraving Gravure Ink
  • Radical‑Cation‑Oxidative Conjunctival Triple Cure Engraving Gravure Ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation of Example 1 Free Radical-Cation-Oxidation Conjunctiva Triple Curing Resin (1)

[0044] (1) In a 500ml four-necked flask, add 200g of bis(3,4-epoxycyclohexylmethyl)adipate and 4-methoxyphenol accounting for 1% of epoxy resin mass, and heat to 50°C , the metered linolenic acid (the molar ratio of epoxy resin to linolenic acid is 1:0.5) is added dropwise into the epoxy resin, and the dropping time is 2 hours. The linolenic acid is added with 0.3% tetrabutylene, which accounts for 0.3% of the mass of the epoxy resin. ammonium bromide;

[0045] After the addition of linolenic acid is complete, control the reaction system at 60°C and react for 1 hour to obtain a bifunctional epoxy prepolymer with an epoxy group at one end and an unsaturated fatty acid double bond at the other end;

[0046] (2) the above-mentioned synthetic bifunctional epoxy prepolymer is dissolved in methylene chloride, adding triethylamine accounting for 0.1% of the bifunctional epoxy prepolym...

Embodiment 2

[0049] Preparation of Example 2 Free Radical-Cation-Oxidation Conjunctiva Triple Curing Resin (2)

[0050] (1) In a 500ml four-necked flask, add 200g of 3,4-epoxycyclohexyl carboxylate and 4-methoxyphenol accounting for 1% of the epoxy resin quality, heat to 60°C, and the metered oleic acid (The molar ratio of epoxy resin and oleic acid is 1:0.6) was added dropwise in the epoxy resin for 3 hours, and tetrabutylammonium bromide accounting for 0.3% of the mass of the epoxy resin was added to the oleic acid;

[0051] After the oleic acid is added dropwise, control the reaction system at 70°C and react for 2 hours to obtain a bifunctional epoxy prepolymer with an epoxy group at one end and an unsaturated fatty acid conjugated double bond at the other end;

[0052] (2) the bifunctional epoxy prepolymer of above-mentioned synthesis is dissolved in methylene chloride, adds and accounts for the triethylamine of 0.3% of bifunctional epoxy prepolymer quality; Slowly add the acryloyl chl...

Embodiment 3

[0054] Example 3 Preparation of Free Radical-Cation-Oxidation Conjunctiva Triple Curing Resin (3)

[0055] (1) In a 1000ml four-necked flask, add 500g of bis(3,4-epoxycyclohexylmethyl)adipate and 4-methoxyphenol accounting for 3% of epoxy resin mass, and heat to 80°C , the metered linolenic acid (the molar ratio of epoxy resin and linolenic acid is 1:1) is added dropwise in the epoxy resin, and the dropping time is 4 hours, and 0.5% tetrabutylene, which accounts for 0.5% of the mass of the epoxy resin, is added in the linolenic acid ammonium bromide;

[0056] After the addition of linolenic acid is complete, control the reaction system at 100°C and react for 3 hours to obtain a bifunctional epoxy prepolymer with an epoxy group at one end and an unsaturated fatty acid double bond at the other end;

[0057] (2) the bifunctional epoxy prepolymer of above-mentioned synthesis is dissolved in methylene chloride, adds and accounts for the triethylamine of 0.5% of bifunctional epoxy ...

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Abstract

The invention discloses free radial, cation and air drying tertiary curing intaglio ink. The ink comprises components in percentage by weight as follows: 10%-40% of free radical, cation and air drying tertiary curing resin, 5%-20% of radical UV (ultraviolet) curing resin, 5%-20% of a reactive diluent, 25%-45% of pigment and filler, 3%-10% of a photoinitiator, 0.1%-2% of a drying agent and 5%-15% of an auxiliary agent. The intaglio ink is prepared with the tertiary curing resin as main resin, so that the advantages of the three curing modes of UV-light free radicals, UV-light cations and air drying can be fully performed, and defects of an UV-light photocuring system and air drying are avoided. The intaglio ink solves technical problems that thick ink film drying of existing free radical UV curing gravure ink is incomplete and traditional air drying type gravure ink is prone to set-off, so that the purposes of shortening of a reprinting cycle, set-off avoidance, no solvent evaporation and the like are achieved, and the intaglio ink has the advantages of economy, energy conservation, environmental protection and the like.

Description

technical field [0001] The invention relates to an engraving gravure ink, in particular to an engraving gravure ink with triple curing mechanism. Background technique [0002] The curing of engraving gravure ink on the paper surface is mainly oxidative conjunctival drying, supplemented by osmotic drying and volatile drying, which has the disadvantages of slow curing speed and high VOC. Ultraviolet (UV) curing technology is an energy-saving and environment-friendly technology. It fully complies with the "3E principle" and is known as a green technology. It has developed rapidly in recent years and maintained a relatively fast growth rate. UV curing technology has the advantages of increasing the curing speed of ink, reducing solvent volatilization, and preventing the back of gravure printing from being dirty. [0003] According to different initiation systems, UV curing can be divided into UV radical curing system and UV cationic curing system. [0004] Free radical UV-cure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/101
CPCC09D11/03C09D11/033C09D11/101
Inventor 董勤徐莹牛牧蒋煜
Owner CHINA BANKNOTE INK
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