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Waterless offset ink

A waterless offset printing and ink technology, applied in the field of printing ink, can solve the problems of poor physical and chemical properties of film formation, low printing speed, slow curing speed, etc., and achieve high cohesive energy, good printing quality, and good resin rheology.

Inactive Publication Date: 2015-07-29
ANHUI JIAXIN PACKAGING & PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used waterless offset printing ink has poor film-forming physical and chemical properties, slow curing speed, and low printing speed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] A waterless offset printing ink, which is composed of the following raw materials in parts by mass: 45 parts of modified polyester acrylate, 12 parts of adhesive, 13 parts of polyurethane acrylate, 10 parts of photoinitiator, 13 parts of pigment, anti-abrasion 5 parts of agent, 1 part of rheological additive and 1 part of stabilizer.

[0015] It should be noted that the modified polyester acrylate is an acrylate modified by an unsaturated polyphenylene ring resin, wherein the unsaturated polyphenylene ring resin is a mixture of maleic resin and rosin resin.

[0016] In this example, the binder is a mixture of starch and shellac.

[0017] In this example, the antiwear agent is a mixture of nano ceramics and glass microspheres.

[0018] In this example, the photoinitiator is a mixture of a hydrogen abstraction type photoinitiator ITX, a cleavage type photoinitiator 184, and a tertiary amine type auxiliary photoinitiator EDAB.

[0019] In this example, the rheological ad...

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PUM

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Abstract

The invention discloses waterless offset ink which comprises the following raw materials in parts by weight: 40-50 parts of modified polyester acrylate, 5-15 parts of an adhesive, 5-15 parts of urethane acrylate, 6-15 parts of a photoinitiator, 10-15 parts of pigment, 0.5-5 parts of an antiwear agent, 0.1-2 parts of a rheological agent, and 0.1-2 parts of a stabilizer. Compared with the traditional offset ink, the waterless offset ink prepared by the method disclosed by the invention has the advantages that a fountain solution is not required during the printing process, the printing efficiency and product color quality are improved, the pollution to the environment and fire hazards are avoided, the ink is excellent in flowing property, clean and pollution-free, the curing speed of the ink is greater than or equal to 10 m / min, the printing quality is good, the production efficiency is improved, the VOCs and water pollution during the printing process are reduced, and the color quality of printed matters is improved.

Description

technical field [0001] The invention relates to the field of printing inks, in particular to a waterless offset printing ink. Background technique [0002] The composition of waterless offset printing ink is similar to that of general offset printing ink. It is composed of pigments, resin binders, solvents, diluents, and additives. Commonly used resins are rosin-modified phenolic resins, gelatinized rosin-modified phenolic resins and The main body is linseed oil and other vegetable oil-modified narcotic acid resins. Since there is no cooling of the fountain solution in the waterless offset printing process, the ink printing process is relatively sensitive to temperature, so there are special requirements for rheological properties of the resins that make up the ink. The general requirement is that the viscoelasticity of ordinary offset printing inks should be higher, and the shape should be slightly softer, that is to say, the fluidity should be better. In addition, the re...

Claims

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Application Information

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IPC IPC(8): C09D11/104C09D11/102C09D11/03
CPCC09D11/104C09D11/03C09D11/102
Inventor 卫国
Owner ANHUI JIAXIN PACKAGING & PRINTING