Water-based plastic gravure table printing ink

A plastic and gravure technology, applied in ink, household utensils, applications, etc., can solve problems such as non-applicability of environmental protection regulations and policies, impact on workers' physical and mental health, and residual odor of solvents, etc., to achieve low solvent residues and reduce emissions of VOC substances , the effect of reducing production costs

Inactive Publication Date: 2018-11-06
广东天龙油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, it not only affects the physical and mental health of workers, but on the other hand, it is not suitable for new environmental

Method used

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  • Water-based plastic gravure table printing ink
  • Water-based plastic gravure table printing ink
  • Water-based plastic gravure table printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: the effect of each component in the formula of the present invention is, main body resin is used as the main film-forming body of printing ink, has excellent compatibility and dispersibility to pigment, is soluble in various alcoholic solvents and water, viscosity Suitable, good dry release, good compatibility with other resins or additives, good chemical properties and stability, excellent fluidity at low temperature; extender pigments can improve printing scratch resistance, maintain ink stability and improve The printing ink is dry; the adhesion enhancer can improve the adhesion of the ink on a certain printing substrate; the water-based defoamer can suppress and defoam, and the water-based leveling agent can effectively reduce the surface Tension, water-based polyethylene wax can improve the scraper suitability of ink printing, reduce the wear of scraper and plate, and improve the film-forming anti-adhesion of printed matter; the neutralizer can improve...

Embodiment 2

[0025] Embodiment 2: the present invention adopts novel water-based ink production process, mainly uses equipment such as high-speed disperser, sand mill and filter; Earlier part solvent and water are dropped in the mixing tank, under the situation of low-speed dispersion, slowly drop into The main resin and defoamer, and then adjust the speed to a high speed to disperse evenly until the resin is completely dissolved or mixed evenly, and then at the same stirring speed, add pigments, extender pigments, and water-based polyethylene wax to disperse and stir for 30 minutes. Then transfer the dispersed and mixed semi-finished product to the sand mill, grind it two to three times, and then use the scraper fineness meter to measure the fineness of the ink, which reaches or is less than 15 μm; then transfer to the next process and put in the remaining solvent and adhesion Strengthening agent, leveling agent, neutralizing agent, dispersed for ten minutes; reconfirm the ink fineness, co...

Embodiment 3

[0028] Example 3: Main technical indicators of water-based gravure ink for film, pigment dispersion and stability: After standing for 6 months at -18°C-60°C, there is no adverse phenomenon such as pigment back-coarseness, flocculation, precipitation, gelation, etc. ;

[0029] Color (scratch method): approximate standard sample;

[0030] Tinting strength (scratch method): 95-105% of the standard sample;

[0031] Fineness (scraper fineness meter method): 120°C; light resistance: ≥4 grades; adhesion fastness: ≥ 90%.

[0032] Embodiment 3: Matters needing attention in the use of water-based gravure ink for film

[0033] (1) Printing plate requirements: special printing plates for water-based inks: engraving depth: 28-32 microns.

[0034] (2) Setting of printing conditions: the printing speed is 120 m / min; the temperature of the oven is set at 50°C, and the air volume is turned on to the maximum.

[0035] (3) Solvent for ink dilution: deionized water: 95% ethanol = 3:7.

[003...

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Abstract

The invention discloses water-based plastic gravure table printing ink. In order to solve the defects existing in the prior art, the specific procedure comprises the following steps that S1, materialsare prepared, specifically, resin materials comprise s-90 acrylic resin (Hanwha), 7159 emulsion (basf) and 7266 emulsion (basf); pigment materials comprise bronze red pr53:1 (Hangzhou lily), magentapr57:1 (Changzhou Beimei), bright red pr48:2 (Changzhou beimei), titanium dioxide 996 (longmang), permanent yellow py14 (Longkou taihang), 15:3 bocour blue (Zhengyan) and extra black 6500; assistantscomprise 180 defoaming agent (Tongxiang hongye), 1488 defoaming agent (tego), 104E leveling agent (gas chemistry), 760W dispersing agent (Digao), 0251 wax powder (Tianshi), dc-51 slipping agent (America Dow Corning), a fast drying agent (Guangzhou Duwei) and the like; solvents comprise deionized water, 95% ethyl alcohol, an environment-friendly ether solvent, ammonium hydroxide (28%), monoethanolamine and the like; and S2, the weight rate of the formula is that the weight rate of organic or inorganic pigment is 10-15, and the weight rate of extender pigment is 1-3.

Description

technical field [0001] The invention relates to the technical field of water-based plastic gravure surface printing four-color ink, in particular to a water-based plastic gravure surface printing ink. Background technique [0002] In the field of gravure printing in my country, solvent-based inks are still being used in large quantities. On the one hand, the hydrocarbons emitted by solvent inks during the use process have caused great pollution to the atmosphere, and have increasingly brought about environmental deterioration; on the other hand, Solvent residues in food packaging and human body contact packaging also cause direct harm to the human body. Therefore, there are many calls for reducing or even completely eliminating organic solvents in printing inks. Therefore, water-based gravure printing inks are an ideal means to prevent air pollution. , it is getting more and more attention from the printing industry and ink industry. [0003] For the flexible packaging printi...

Claims

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Application Information

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IPC IPC(8): C09D11/107C09D11/033C09D11/03
CPCC09D11/03C09D11/033C09D11/107
Inventor 陈建平陆海彬陆祥发
Owner 广东天龙油墨有限公司
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