Method for preparing pure water urethane resin and reverse printing ink

A technology of polyurethane resin and pure water, applied in ink, household utensils, applications, etc., can solve problems such as economic loss, insecurity, flammability and explosion, and achieve the effects of improving production efficiency, increasing product qualification rate, and reducing costs

Inactive Publication Date: 2010-12-15
张伟公
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are still some alcohol-soluble and ester-soluble inks in the printing industry. Although they do not contain toxic toluene, they are st

Method used

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Examples

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Example Embodiment

[0005] The present invention will be further described in detail below in conjunction with the embodiments.

[0006] Polyester polyol 10-50 with a molecular weight of 1500-3500 and polyether polyol 30-80 are used for dehydration and polymerized with polyisocyanate 20-60, vinyl chloride 0.5-3, and hydroxyethyl acrylate 1-5. Then, 60-70 purified water is added to generate a pure water polyurethane resin with a solid content of 30%. Then use pure water polyurethane resin 20-50, add pure water 50-80, add 1-10 additives, add 10-30 organic pigments for dispersion, then grind and pack into ink.

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PUM

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Abstract

The invention discloses a method for preparing a pure water urethane resin and reverse printing ink. The pure water urethane resin is prepared by the following steps of: dehydrating polyester polyol and polyether polyol with molecular weight of between 1,500 and 3,500; reacting the polyester polyol and the polyether polyol with polyisocyanate; and adding copolymer of vinyl chloride and hydroxy-ethyl acrylate into the reaction product and performing polymerization. The synthesis process of the resin is simple; and the ink prepared from the resin has the advantages of high adhesion, high wettability, high dispersion, high adhesion, bright color, high drying speed and no residue on a printed matter. The resin and the ink have wide application range and can be used for plastic thin films such as PET, PVC, BOPP, OPP and the like.

Description

1. Technical field [0001] The pure water polyurethane resin and the inner printing ink are specifically a preparation method of the pure water polyurethane resin and the inner printing ink. 2. Background technology [0002] Solvent-based lining inks have been widely used in the printing industry. Because it itself has the existence of solvents such as toluene, xylene, butanone, it will pollute the environment and endanger people's health. In particular, food packaging countries have forcibly prohibited the use of harmful solvents such as toluene and methyl ethyl ketone. At present, there are still some alcohol-soluble and ester-soluble inks in the printing industry. Although they do not contain toxic toluene, they are still based on solvents. They are flammable, explosive, and unsafe. When printing encounters static electricity, it will cause incalculable economic losses. . 3. Contents of the invention [0003] In order to solve the above-mentioned shortcomings, a prepa...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08G18/48C08G18/42C09D11/10C09D11/102
Inventor 张伟公
Owner 张伟公
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