Water-based gloss oil substituting UV gloss oil

A varnish and water-based technology, applied in the direction of coating, latex paint, etc., can solve the problems of overshooting, slow drying, large latent heat of evaporation, etc.

Inactive Publication Date: 2008-05-07
山西精华科工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The solid content of traditional water-based varnish generally does not exceed 60%, and the curing method adopts heating and drying; the film-forming performance of the resin is poor
Due to the large latent heat of evaporation of water, slow drying, and poor resin film-forming properties, printing and coating must use a plate roller with a higher screen line (ie, a shallow plate) to dry completely and print flat. The amount of transfer coating is very small, so that the gloss of printed matter using water-based varnish is much lower than that of printed matter using UV varnish. On the same substrate, the gloss of UV varnish 80 and water-based varnish can only reach 50

Method used

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  • Water-based gloss oil substituting UV gloss oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A water-based varnish that replaces UV varnish is made of the following components in proportion by weight:

[0025] Water-based acrylic emulsion (model NeoCryl A-1092) 85%

[0026] Substrate wetting agent (model is Wet 500) 0.5%

[0027] Defoamer (model is Foamex 1488) 0.2%

[0028] Slip agent (model is Ultralube E668H) 5%

[0029] Crosslinker 4%

[0030] Propylene Glycol Methyl Ether 1%

[0031] Ethanol 3%

[0032] Water 1.3%

[0033] The above-mentioned manufacturing process of a water-based varnish replacing UV varnish is: according to the order of water-based acrylic emulsion, substrate wetting agent, defoamer, slip agent, crosslinking agent, propylene glycol methyl ether, ethanol and water Order, add while stirring, and fully stir evenly.

Embodiment 2

[0035] A water-based varnish that replaces UV varnish is made of the following components in proportion by weight:

[0036] Modified acrylic emulsion (model JonCryl 74) 92%

[0037] Substrate wetting agent (model is Wet 500) 0.5%

[0038] Defoamer (model is Foamex 822) 2%

[0039] Slip agent (model is Dowcorning 51) 0.5%

[0040] Ethylene glycol ether 1%

[0041] Isopropanol 3%

[0042] Water1%

[0043] The manufacturing process of the above-mentioned water-based varnish that replaces UV varnish is: in the order of modified acrylic emulsion, substrate wetting agent, defoamer, slip agent, ethylene glycol ether, isopropanol and water , add while stirring, and fully stir evenly.

Embodiment 3

[0045] A water-based varnish that replaces UV varnish is made of the following components in proportion by weight:

[0046] Water-based acrylic resin solution (model is NeoCryl A-1049 74.8%

[0047] Substrate wetting agent (model is Wet 505) 0.2%

[0048] Defoamer (model is Foamex 1488) 1%

[0049] Slip agent (model Ultralube E668H) 8%

[0050] Cross-linking agent 2%

[0051] Ethylene glycol butyl ether 1%

[0052] n-propanol 8%

[0053] water 5%

[0054] The above-mentioned manufacturing process of a kind of water-based varnish replacing UV varnish is: according to water-based acrylic resin solution, substrate wetting agent, defoamer, slip agent, crosslinking agent, ethylene glycol butyl ether, n-propylene Alcohol and water in sequence, add while stirring, and fully stir evenly.

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Abstract

The invention discloses water-base gloss oil in place of UV gloss oil, in particular to the water base gloss oil in place of the UV gloss oil in the process of gravure printing, flexography printing and offset printing for the lacquer coating. The invention adopts the technical proposal that: the water-base gloss oil is prepared by the raw materials in weight percentage as follows: water-borne acrylic emulsion 63 to 98.5 percent, wet 0.2 to 2 percent, defoamer 0.1 to 2 percent, slipping agent 0.2 to 10 percent, cross-linking agent 0 to 8 percent, proplylene glycol methyl ether 1 to 2 percent, ethanol 0 to 8 percent, and water 0 to 5 percent. The invention has the advantages of even film forming, excellent desiccation performance, realized glossiness for the UV gloss oil, environment protection, safety, and bright application prospect in the market, and is widely used to replace the UV (ultraviolet curing) gloss oil in the printing industry.

Description

technical field [0001] The invention relates to a water-based varnish replacing UV varnish, in particular to a water-based varnish which can replace UV varnish required in the coating process of gravure printing, flexo printing and offset printing. Background technique [0002] Since the 1990s, UV varnish (ultraviolet light curing) varnish has been used in the printing industry, especially for higher-grade paper, due to its low VOC content, less negative impact on the environment, fast curing speed, and high film-forming gloss. The printing industry is rapidly forming an application market. However, UV varnish is extremely irritating during use, and the acrylic monomers used and the UV light source required for curing are extremely harmful to the human body. [0003] Water-based varnish uses water as the main solvent, and in most cases uses acrylic polymer as the resin. The biggest advantage of water-based varnish lies in its environmental protection, health, and safety. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/02
Inventor 白鹏飞王重声刘淑样王尔健
Owner 山西精华科工贸有限公司
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