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Aqueous plastic compound ink

A technology for plastics and inks, used in inks, household appliances, applications, etc., can solve problems such as poor thermal stability, corrosion of printing plate rollers, and harm to workers' health, and achieve good printing adaptability, fast drying speed, and adhesion fastness. Good results

Inactive Publication Date: 2004-11-03
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ink contains a lot of toxic solvents such as toluene and butanone. For example, chlorinated polypropylene composite ink contains 70% toluene. After this kind of solvent volatilizes, it will ① cause air pollution; ② It is a carcinogen and endangers the health of workers. Health; ③Residual solvents in packaging products, such as exceeding the standard (8mg / m 2 ) will seriously contaminate the food in the package
Due to the poor thermal stability of chlorinated polypropylene ink, chlorine is easily released during manufacture and use to form hydrogen chloride, thereby destroying the atmospheric ozone layer and corroding the printing plate roller

Method used

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Examples

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Embodiment Construction

[0017] The present invention is described in further detail below in conjunction with embodiment.

[0018] Table 1 and Table 2 list the formula of the white and yellow water-based plastic composite ink of embodiment respectively.

[0019] The resin part in the water-based ink of the present invention includes an anionic polyurethane dispersion (NeoResins R650 from Zeneca, USA) and an acrylate emulsion. The former has good adhesion fastness to corona-treated plastic films, while the latter is cheap, has good yellowing resistance, and dries quickly. The white pigment is TR92 titanium dioxide from ICI Company, and the yellow pigment is AATO yellow from DIC Company of Japan. The dispersant is sodium polyacrylate GA40 from ICI Company, the dosage is 1%. The defoaming agent is Dehydran 1293 modified polydimethylsiloxane solution from Henkel Company. The cross-linking agent is the imide cross-linking agent of Zenecon Company.

[0020] The trial-produced water-based ink was printe...

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PUM

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Abstract

The water-thinned plastic composite printing ink consists of anionic polyurethane dispersing liquid, acrylic ester emulsion, pigment, dispersant, defoaming agent, polyethylene wax, water and small amount of isopropanol. The self made acrylic ester emulsion well compatible with the anionic polyurethane dispersing liquid results in good comprehensive performance and low cost of the water-thinned printing ink. The addition of crosslinking agent raises the wear resistance, attaching strength and stripping strength of ink layer. The trial water-thinned printing ink has a printing speed on a processed bi-directional polypropylene film of 30-50 m / min and stripping strength after compounding of 180 N / in. The water-thinned printing ink has fast drying speed and high wear resistance, and is especially suitable for printing on polypropylene, polyester film and other soft food packing material.

Description

technical field [0001] The invention relates to a composite ink which is suitable for plastic film printing and uses water as the main solvent. Background technique [0002] Composite ink is to print the ink on a plastic film, and then laminate it with another plastic film, and the ink is sandwiched between the plastic films. The ink needs to have good adhesion fastness and composite strength. At the present stage in our country, the most widely used plastic composite packaging ink is chlorinated polypropylene ink containing toluene solvent. The ink contains a large amount of toxic solvents such as toluene and butanone. For example, chlorinated polypropylene composite ink contains 70% toluene. After this kind of solvent volatilizes, ①cause air pollution; ②It is a carcinogen that endangers the health of workers Health; ③Residual solvents in packaging products, such as exceeding the standard (8mg / m 2 ) will seriously contaminate the food in the package. Due to the poor the...

Claims

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Application Information

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IPC IPC(8): C09D11/03C09D11/102C09D11/107
Inventor 王小妹刘志辉林剑雄马宏蔡敏超邱星林
Owner SUN YAT SEN UNIV
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