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UV offset print glazing process capable of enhancing gold stamping surface wear resistance

An offset printing and bronzing technology, which is applied in the field of UV offset printing and glazing treatment on the bronzing surface, can solve the problems of inability to effectively control the thickness of the protective layer, the protective layer is easy to peel off and affect the metal effect, etc., and achieves increased service life and enhanced wear resistance. , the effect of high work efficiency

Inactive Publication Date: 2020-08-11
宁波良源包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hot stamping surface is exposed on the outermost surface of various packages, it is very prone to problems such as scratches, scratches and peeling off
In order to solve this technical problem in the prior art, a protective layer will be coated on the bronzing surface. The method of coating the protective layer has the following disadvantages: 1) there is no way to effectively control the thickness of the protective layer, 2) the setting of the protective layer may affect The original metal effect, 3) After a period of use, the protective layer is easy to peel off

Method used

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  • UV offset print glazing process capable of enhancing gold stamping surface wear resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 1 , is shown as the process flow diagram of the UV offset glazing process for enhancing the wear resistance of the bronzing surface of the embodiment of the present invention, including the following steps:

[0033] Oil making: pre-prepared UV offset printing varnish, including the following components by weight percentage: multifunctional polyester acrylate 45%; epoxy acrylic acid 3%; polyester acrylate 3%; reactive diluent 2%; filler 1 %; photoinitiator 4%; auxiliary agent 1%;

[0034] Cleaning: remove the impurities on the surface of the packaging substrate, and set aside;

[0035] Printing water: Partially print weakly acidic demineralized water on the non-bronzing surface, the PH value of the weakly acidic demineralized water is 4.5~6.0, and pre-coat the linking agent on the bronzing surface to ensure the interlayer bonding force between UV offset printing varnish and bronzing surface. The agent is an acrylate water-soluble mixture or a polyuretha...

Embodiment 2

[0041] refer to figure 1 , is shown as the process flow diagram of the UV offset glazing process for enhancing the wear resistance of the bronzing surface of the embodiment of the present invention, including the following steps:

[0042] Oil making: pre-prepared UV offset printing varnish, including the following components by weight percentage: multifunctional polyester acrylate 50%; epoxy acrylic acid 6%; polyester acrylate 6%; reactive diluent 5%; filler 6 %; photoinitiator 5%; auxiliary agent 2%;

[0043] Cleaning: remove the impurities on the surface of the packaging substrate, and set aside;

[0044] Printing water: Partially print weakly acidic demineralized water on the non-bronzing surface, the PH value of the weakly acidic demineralized water is 4.5~6.0, and pre-coat the linking agent on the bronzing surface to ensure the interlayer bonding force between UV offset printing varnish and bronzing surface. The agent is an acrylate water-soluble mixture or a polyuretha...

Embodiment 3

[0050] refer to figure 1 , is shown as the process flow diagram of the UV offset glazing process for enhancing the wear resistance of the bronzing surface of the embodiment of the present invention, including the following steps:

[0051] Oil making: pre-prepared UV offset printing varnish, including the following components by weight percentage: multifunctional polyester acrylate 60%; epoxy acrylic acid 12%; polyester acrylate 12%; reactive diluent 10%; filler 10% %; photoinitiator 7%; auxiliary agent 4%;

[0052] Cleaning: remove the impurities on the surface of the packaging substrate, and set aside;

[0053] Printing water: Partially print weakly acidic demineralized water on the non-bronzing surface, the PH value of the weakly acidic demineralized water is 4.5~6.0, and pre-coat the linking agent on the bronzing surface to ensure the interlayer bonding force between UV offset printing varnish and bronzing surface. The agent is an acrylate water-soluble mixture or a polyu...

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Abstract

The invention discloses a UV offset print glazing process capable of enhancing gold stamping surface wear resistance. The process comprises the following steps of oil making, wherein UV offset print gloss oil is prepared in advance; cleaning, wherein impurities on surface of a packaging printed material are removed, and standby application is carried out; water printing, wherein faintly acid softened water is printed locally on the non-gold-stamping surface; oil printing, wherein the area, not wetted by the faintly acid softened water, on the gold stamping surface is evenly printed with UV offset print gloss oil; and curing, wherein the UV offset print gloss oil is subjected to solidifying film forming under irradiation of ultraviolet rays, and a protection layer is formed on the gold stamping surface. The process has the beneficial effects that through the UV offset print glazing process, a wear-resisting protection layer is achieved on the gold stamping surface, the oil layer thickness can be more effectively controlled, cost is saved, wear resistance of the gold stamping surface is improved, scratches, scratch marks or falling is not prone to appearing, the original metal effectis not affected, the UV offset print gloss oil applies a photoinitiator to absorb energy, under ultraviolet irradiation, an extremely rapid hinge reaction is generated, and the aim of rapid drying isachieved.

Description

technical field [0001] The invention relates to the technical field of UV offset printing glazing treatment on bronzing surfaces, in particular to a UV offset printing glazing process for enhancing the wear resistance of the bronzing surface. Background technique [0002] In the printing and packaging industry, hot stamping is often used as the main process to highlight the brand and product grade. The materials that can be hot stamped include: paper, stickers, plastic films, glass, metal, wood, cloth and leather, etc. Since the hot stamping surface is exposed on the outermost surface of various packages, it is very prone to problems such as scratches, scratches and peeling off. In order to solve this technical problem in the prior art, a protective layer will be coated on the bronzing surface. The method of coating the protective layer has the following disadvantages: 1) there is no way to effectively control the thickness of the protective layer, 2) the setting of the prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M7/00B41M3/00C09D167/06C09D163/10
CPCB41M3/00B41M7/0036B41M7/0081B41M2205/40C08L2205/025C08L2205/03C09D167/06C08L63/10C08L67/06
Inventor 刘宇东
Owner 宁波良源包装科技有限公司
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