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A kind of water-based plastic bottom printing composite gravure printing ink and preparation method thereof

A kind of gravure printing ink, water-based technology, applied in the field of water-based plastic inner printing composite gravure printing ink and its preparation, can solve the problems of dryness, adhesion fastness, composite strength and poor printing performance, and achieve excellent printing effect and printing performance Excellent, good adhesion fastness effect

Active Publication Date: 2020-11-20
山西精华科工贸有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional solvent-based inks, water-based inks also have great advantages in terms of safety and environmental protection, but they are relatively inferior to traditional solvent-based inks in terms of dryness, adhesion fastness, composite strength and printing performance.

Method used

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  • A kind of water-based plastic bottom printing composite gravure printing ink and preparation method thereof
  • A kind of water-based plastic bottom printing composite gravure printing ink and preparation method thereof
  • A kind of water-based plastic bottom printing composite gravure printing ink and preparation method thereof

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preparation example Construction

[0042] In addition, the present invention also provides a method for preparing the above-mentioned water-based ink (i.e. microlipid slurry process), including:

[0043]1) Mix a certain amount of pigment, water-based binder, wetting agent and solvent evenly at a stirring speed of 1000-15000r / min to form a sol system, and then further disperse to form a microlipid slurry;

[0044] 2) First mix a certain amount of defoamer and solvent evenly at a stirring speed of 1000-5000r / min, then add the product obtained in step 1) and a certain amount of water-based binder and wetting agent into the material tank to form a mixture, And continue to disperse in the grinding medium of 0.1-0.8mm at the speed of 1000-15000r / min, then slowly and uniformly add the mixed defoamer and solvent into the material tank, so that it can enter the mixture evenly, and get the primary ink ;

[0045] 3) Pass the ink primary product obtained in step 2) through a filter to obtain a finished ink.

[0046] In o...

example 1

[0051] Example 1: Gravure water-based plastic ink (red)

[0052] Weigh 10 parts of water-based red pigment PR146 red, 60 parts of self-made water-based emulsion (polyacrylic acid-polyurethane mixed emulsion mixed with polyacrylic acid emulsion and polyurethane emulsion at 1:1), 0.4 part of wetting agent, defoamer (polyoxyethylene poly oxypropanolamine ether) 1 part, 28.6 parts of tap water. When preparing the ink, first mix the weighed defoamer and tap water evenly at a stirring speed of 1500r / min, then mix the weighed water-based red pigment PR146 red, self-made emulsion and wetting agent according to the weighed amount Add to the feed tank to form a mixture, and continue to disperse in the grinding medium of 0.1-0.8mm at a speed of 8000r / min, and then slowly and uniformly add the mixed defoamer and tap water into the feed tank to make it evenly enter the mixture to obtain The primary ink is finished, and the ink is passed through a filter to obtain the finished ink, and its...

example 2

[0053] Example 2: Gravure water-based plastic ink (white)

[0054] Weigh 40 parts of water-based white pigment PW6 titanium dioxide, 30 parts of self-made water-based emulsion (polyacrylic acid-polyurethane mixed emulsion mixed with polyacrylic acid emulsion and polyurethane emulsion at 1:1), 5 parts of wetting agent, defoamer (polyoxypropylene Polyoxyethylene glyceryl ether) 1 part, tap water 24 parts. When preparing the ink, first mix the weighed defoamer and tap water evenly at a stirring speed of 1500r / min, then add the water-based white pigment PW6 titanium dioxide, self-made emulsion and wetting agent to the material according to the weighed amount The mixture is formed in a tank, and continuously dispersed in a grinding medium of 0.1-0.8mm at a speed of 8000r / min, and then the mixed defoamer and tap water are slowly and uniformly added to the tank to make it evenly enter the mixture to obtain the ink The first finished product, the first finished ink is passed through ...

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Abstract

The invention discloses water-based composite gravure plastic reverse printing ink. The ink is prepared from, in percentage by weight, 10%-40% of pigments, 30%-60% of a water-based ink binder, 0.1%-5% of a wetting agent, 0.1%-1% of a defoaming agent and 24%-50% of a solvent. The invention further discloses a preparation method of the composite gravure plastic reverse printing ink. The water-based ink prepared in the formula with the method has higher color saturation concentration than that obtained with a traditional process; the adhesion capacity of the water-based ink on various plastic base materials is almost the same with that of solvent type ink and even superior to that of the solvent type ink; the water-based ink has good storage stability and high composite strength, and the release force can reach 1N / 15mm or higher. The water-based ink prepared in the optimized formula with the method successfully solves the problems of clogging, serious doctor marks and the like occurring in the gravure plastic printing process.

Description

technical field [0001] The invention relates to the application field of water-based plastic gravure printing technology, in particular to a water-based plastic back printing composite gravure printing ink and a preparation method thereof. Background technique [0002] With economic development and social progress, people's awareness of environmental protection has increased, and industrial production and the application of corresponding products have gradually developed towards zero emission and zero pollution. In the packaging and printing industry, people have put forward stricter requirements for packaging materials and printing inks. [0003] Ink plays a key role in the packaging and printing process. Text and patterns are vividly presented on the substrate through printing. The selection of ink types and the quality of printing effects directly affect consumers' preferences for products. As people's awareness of safety and environmental protection continues to increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/037C09D11/033C09D11/03C09D11/107C09D11/102
CPCC09D11/03C09D11/033C09D11/037C09D11/102C09D11/107
Inventor 白鹏飞王重声
Owner 山西精华科工贸有限公司
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