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A high-gloss offset printing varnish

A technology of offset printing and varnish, applied in polyester coatings, coatings, etc., can solve problems such as insufficient brightness, poor fastness, environmental pollution, etc., achieve good transparency, good gloss, and improve performance stability Effect

Active Publication Date: 2018-05-04
TIANJIN ANGEL CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the field of printing, the varnish used in glazing has the disadvantages of insufficient brightness, weak fastness, and easy fading, and most varnishes use organic solvents to increase its drying speed, causing pollution to the environment
Especially in food packaging, varnish will pollute food and cause harm to human body

Method used

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  • A high-gloss offset printing varnish
  • A high-gloss offset printing varnish
  • A high-gloss offset printing varnish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A high-gloss offset printing varnish, comprising the following raw materials by weight and composition ratio: 45 parts of phenol-free resin, 7 parts of linseed oil, 15 parts of tung oil, 10 parts of gelling agent, 0.95 parts of dispersing agent, 3 parts of brightening agent, leveling agent 0.05 parts of agent, 19 parts of high boiling point non-aromatic solvent oil.

[0014] Wherein, the synthetic steps of phenol-free resin are as follows:

[0015] (1) Rosin and maleic anhydride carry out addition reaction:

[0016]

[0017] (2) The adduct reacts with pentaerythritol for esterification:

[0018]

Embodiment 2

[0020] A high-gloss offset printing varnish, comprising the following raw materials by weight and component ratio: 40 parts of phenol-free resin, 10 parts of linseed oil, 20 parts of tung oil, 10 parts of gelling agent, 0.93 parts of fatty amine polyoxyethylene ether, and 3 parts of brightening agent parts, 0.07 parts of polyether modified polysiloxane, and 16 parts of high boiling point non-aromatic solvent oil.

Embodiment 3

[0022] A high-gloss offset printing varnish, comprising the following raw materials by weight and composition ratio: 50 parts of phenol-free resin, 5 parts of linseed oil, 10 parts of tung oil, 10 parts of gelling agent, 0.55 parts of fatty amine polyoxyethylene ether, and 2.4 parts of brightening agent part, 0.05 part of polyether modified polysiloxane, and 22 parts of high boiling point non-aromatic solvent oil.

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Abstract

The invention provides highlight offset printing gloss oil. The highlight offset printing gloss oil is prepared from 40-50 parts by weight of phenol-free resin, 5-10 parts by weight of linseed oil, 10-20 parts by weight of tung oil, 5-10 parts by weight of gel, 0.5-1.0 part by weight of a dispersant, 2-4 parts by weight of a sensitizer, 0.02-0.07 parts by weight of a levelling agent and 15-30 parts by weight of high-boiling point aromatic hydrocarbon-free solvent oil. The high-boiling point aromatic hydrocarbon-free solvent oil as a gloss oil solvent improves gloss oil processing suitability and can easily clean a printing device. The phenol-free resin reduces damage to the environment. The gloss oil film does not easily yellow and improves gloss oil stability. The levelling agent improves finishing liquid permeability, reduces spots and blackspots produced in printing, improves covering performances, makes the film uniform and natural and improves smoothness and wear resistance of the film.

Description

technical field [0001] The invention belongs to the technical field of printing varnish, in particular to a high-gloss offset printing varnish. Background technique [0002] With the improvement of human awareness of environmental protection, people have paid more and more attention to the impact of ecological environment changes in activities such as production operations and living consumption. The importance of environmental protection is no exception, and many requirements and constraints on hygiene, environmental protection, and labor protection have also been added to the printing industry. At present, in the printing field, the varnish used in glazing has the disadvantages of insufficient brightness, weak fastness, and easy fading, and most varnishes use organic solvents to increase its drying speed, causing pollution to the environment. Especially in food packaging, varnish will pollute food and cause harm to human body. Contents of the invention [0003] The pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/08C09D191/00C09D7/63C09D7/20
Inventor 丁艳丽周金泉王广德
Owner TIANJIN ANGEL CHEM GRP
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