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Polymer adhesive used for water-scouring contamination-proofing carved gravure printing ink compound

A technology for engraving gravure and printing ink, which is applied in the field of printing ink and can solve the problems of poor oil solubility of modified phenolic resin, easy generation of flying ink, and unsatisfactory plate cleaning effect.

Inactive Publication Date: 2012-04-11
北京万垟防伪技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This fully shows that the oil solubility of these modified phenolic resins is not good
Due to the poor oil solubility of these modified phenolic resins, the storage stability of the polymer binder is poor, and the storage stability of the ink composition is poor.
In the printing process, the ink composition has poor transferability, the solvent is volatile, the wiping effect is not ideal (easy to hang dirty on the printing plate), easy to produce ink flying, and the printing suitability is poor

Method used

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  • Polymer adhesive used for water-scouring contamination-proofing carved gravure printing ink compound
  • Polymer adhesive used for water-scouring contamination-proofing carved gravure printing ink compound
  • Polymer adhesive used for water-scouring contamination-proofing carved gravure printing ink compound

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0081] Example 1. Synthesis of High Acid Value Rosin Modified Phenolic Resin

[0082] In a 5L four-neck round bottom flask equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen inlet tube, add 405g of p-tert-butylphenol, 331g of liquid formaldehyde, 15g of ammonia water, and 2207g of rosin, and react at 90-110°C for 4 hour, then heat up to 130°C, add 66g of maleic anhydride, continue to heat up to 190-210°C, react for 2 hours, add 5g of glycerin, blow nitrogen, heat up to 250°C, and react until the acid value is 140-150mgKOH / g So far, high acid value rosin modified phenolic resin has been obtained.

[0083] The high acid value rosin modified phenolic resin has a softening point of 120° C., an acid value of 144 mgKOH / g, and a number average molecular weight of 6200.

example 1-1

[0084] Example 1-1. Hydrotropic Rosin Modified Phenolic Resin

[0085] On the basis of example 1, replace glycerol with polyether glycol and / or triethylene glycol and / or tetraethylene glycol, in addition, add the amount of polyether glycol and / or triethylene glycol and / or tetraethylene glycol, make example 1 The acid value is reduced from 140-150mgKOH / g to 70-80mgKOH / g, and the hydrotropic rosin modified phenolic resin is obtained.

example 1-2

[0086] Example 1-2. Water-soluble rosin modified phenolic resin adhesive

[0087] In the preparation process of Example 1, add linseed oil and / or tung oil in the amount of rosin-modified phenolic resin, and react by linseed oil and / or tung oil, phenolic condensate, rosin, and maleic anhydride at 190-200°C , and then add monoethanolamine for neutralization, and adjust the viscosity with diethylene glycol butyl ether to obtain a water-soluble rosin-modified phenolic resin adhesive.

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Abstract

The invention provides a polymer adhesive used for water-scouring contamination-proofing carved gravure printing ink compound, which comprises modified phenolic resin adhesive, oil soluble pure phenolic resin adhesive, water soluble modified alkyd resin adhesive, modified alkyd resin adhesive, unsaturated polyester resin adhesive, polyester resin adhesive, rosin and rosin derivant polyatomic alcohol resin adhesives, epoxy resin adhesive, etc.

Description

[0001] This application is a divisional application filed in accordance with Article 42 of the Detailed Rules for the Implementation of the Patent Law. The original application was submitted on December 25, 2001 with the application number 01144965.9 and the name "Grave Printing Ink Composition for No Smudges by Water Wipe". application. technical field [0002] The invention relates to the field of printing inks, in particular to a polymer binder for an engraving gravure printing ink composition that does not rub off with water. Background technique [0003] Engraving gravure printing ink composition, mainly used for trademark printing of bank currency, securities, various certificates and famous products. Previously, as water-wiping non-smudge engraving gravure printing ink compositions, pigments (organic pigments and inorganic pigments), polymer binders (vegetable oil-modified alkyd resin binders, polyurethane resin binders, rosin and Its derivative polyol ester resin bi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/28C08G18/68C09D11/10C09D11/102
Inventor 樊官保樊鹏张威周春华李尧
Owner 北京万垟防伪技术有限责任公司
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