Ink for soft package intaglio printing and preparation method thereof

A technology of gravure printing and flexible packaging, applied in the field of gravure printing ink for flexible packaging and its preparation process, can solve the problems of poor color reproducibility, poor application tolerance, and ink not suitable for high magnetic environments, etc., and achieve superior refreezing performance and transfer Excellent performance and good color reproducibility

Active Publication Date: 2013-08-21
袁建穗
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, ink still has problems such as not being suitable for high magnetic environments, poor application tolerance in frozen food packaging, especially poor gradation effect and poor color reproducibility when printing flexible packaging at high speed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Put in 25 parts of acrylic resin and 30 parts of water; start the machine to stir, and put in 38 parts of pigment during the stirring process;

[0020] 2) After stirring for 20 minutes, add 2 parts of dispersant and 5 parts of defoamer, grind for 3 hours, and filter the material with a 2 μm filter to obtain the color paste;

[0021] 3) Add 50 parts of water-based acrylic emulsion, 20 parts of water, and 25 parts of color paste in sequence, and stir and mix evenly;

[0022] 4) Add 3 parts of 1.2-benzisothiazolin-3-one and stir for 15 minutes;

[0023] 5) Add 2 parts of hardness polyethylene emulsion and stir for 5 minutes, filter and pack.

Embodiment 2

[0025] 1) Put in 23 parts of acrylic resin and 30 parts of water, start the machine to stir, and put in 40 parts of pigment during the stirring process;

[0026] 2) After stirring for 20 minutes, add 2 parts of dispersant and 5 parts of defoamer, grind for 3 hours, and filter the material with a 2 μm filter to obtain a color paste.

[0027] 3) Add 50 parts of water-based acrylic emulsion, 21 parts of water, and 25 parts of color paste in sequence, and stir and mix evenly;

[0028] 4) Add 2 parts of 1.2-benzisothiazolin-3 ketone and stir for 15 minutes;

[0029] 5) Add 2 parts of hardness polyethylene emulsion and stir for 5 minutes, filter and pack.

Embodiment 3

[0031] 1) Put in 25 parts of acrylic resin and 25 parts of water, start the machine to stir, and put in 45 parts of pigment during the stirring process;

[0032] 2) After stirring for 20 minutes, add 1 part of dispersant and 4 parts of defoamer, grind for 3 hours, and filter the material with a 2 μm filter.

[0033] 3) Add 48 parts of water-based acrylic emulsion, 22 parts of water, and 25 parts of color paste in sequence, and stir and mix evenly;

[0034] 4) Add 2 parts of 1.2-benzisothiazolin-3-one and stir for 15 minutes;

[0035] 5) Add 3 parts of hardness polyethylene emulsion and stir for 5 minutes, filter and pack.

[0036] The average molecular weight of the polypropylene resin used in the above examples is 400,000, the average molecular weight of the aqueous polypropylene emulsion is 200,000, the glass transition temperature is 20° C., and the hardness of the polyethylene emulsion is 5.

[0037] Compared with the original solvent-based ink, the product obtained by t...

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PUM

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Abstract

The invention discloses an ink for oft package intaglio printing and a preparation method thereof. The ink contains the following components in parts by weight: 20 to 25 parts of color paste, 30 to 60 parts of binder resin, 10 to 30 parts of water, 1 to 5 parts of bactericide and 1 to 5 parts of liquid wax, wherein the color paste contains the following components in parts by weight: 10 to 40 parts of water, 20 to 60 parts of water-based pigment, 1 to 5 parts of dispersant, 1 to 5 parts of defoaming agent and 10 to 30 parts of grinding-type resin. The ink causes no pollution and injury to environment and the body of an operating worker in the processes of production and use, ensures that fire accident caused by short circuit or static electricity can be avoided, has the characteristics ofexcellent transfer property, good color reproducibility and outstanding refreezing property, and can be used when being refrozen at normal temperature within 3 hours after being frozen; the resultantprinting food package has no residual organic solvent and conforms to the demands of various countries on soft food package; the using cost is low, and the economical benefit is prominent.

Description

technical field [0001] The invention relates to an ink used for gravure printing and a preparation process thereof, in particular to an ink used for gravure printing of flexible packaging and a preparation process thereof. Background technique [0002] At present, all food packaging, especially gravure-printed plastic packaging, is printed with solvent-based inks, and there are organic solvent residues on the packaging. These residual organic solvents are of many types, including benzene, ketones, esters, alcohols, etc. The solvent-like solvent will penetrate the film in a short time and cause secondary pollution to the food in the package, which will cause leukemia and so on. The printing of flexible packaging with ink will inevitably volatilize most of the organic solvents in the ink into the sky, which not only pollutes the atmosphere, but also causes respiratory diseases caused by haze weather, and workers will inevitably inhale a large amount of organic solvents during ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C09D11/107
Inventor 袁建穗
Owner 袁建穗
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