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Mixed printing method for metal flat plate

A metal plate, printing method technology, applied in printing, printing device and other directions, can solve the problems of insufficient whiteness, low gloss of printed matter, poor friction resistance, etc. The effect of increasing productivity

Active Publication Date: 2011-02-16
HANGZHOU CPMC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The whiteness of metal oil-based ink can reach more than 60%, while the whiteness of UV-curable white ink is less than 50%. Using metal oil-based ink can make up for the shortcomings of insufficient whiteness and poor hiding power of UV-curable white ink. In addition, UV-curable gold and silver metallic inks are both Not easy to preserve and lack of metallic color, but metallic oil-based ink has no such disadvantages
[0004] However, there are the following problems in the conventional processing method of mixing two kinds of inks: 1. Since the metal oily ink of the substrate takes a long time to fully solidify, the gloss of the printed matter will decrease as time goes by
2. The heavy metal desiccant or petroleum-based solvent components required in metal oil-based inks will remain in the printed matter to cause environmental pollution, and due to insufficient drying, there is also the problem of poor friction resistance

Method used

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Embodiment Construction

[0014] The production steps of the present invention are as follows: first, the metal flat plate is primed, and the prime coat adopts the modified polyester resin of model MA-807 produced by Nagato Chemical (Suzhou) Co., Ltd., and the solid content is 35% (m / m) or 65%. % (m / m), the thickness of the coating film with a solid content of 35% is 2-3g / m 2 , the thickness of the coating film with a solid content of 65% is 12-14g / m 2 . The thermal curing conditions in the primer coating process are constant temperature 140~180℃ / 10min. The preferred solution is that the thermal curing temperature is 145°C, the solid content is 35%, the coating thickness is 2-3g / m2, the curing time is 10min, and the surface tension after curing of the primer layer is 36-42 dynes / cm.

[0015] After the primer layer is cured, metal oil-based ink printing is carried out. In the metal oil-based ink printing, the first process coats the white paper original large / transparent gold paper, and the second pro...

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PUM

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Abstract

The invention discloses a mixed printing method for a metal flat plate, and in particular relates to a method for printing on a metal flat plate, such as tinplate, an aluminum sheet, and the like, by using metal oily ink and ultraviolet curing ink respectively. The metal oil ink and the ultraviolet curing ink are used in the mixed printing method for the metal flat plate respectively, and the method is characterized by comprising the following steps of: firstly carrying out base coating on the metal flat plate by using a denatured polyester resin coating as a base coating material; carrying out metal oily ink printing after the base coating is cured; and then carrying out ultraviolet curing ink printing after the metal oily ink coating is cured; and finally glazing after the ultraviolet curing ink coating is cured, wherein denatured acrylic resin is used as a glazing coating. The invention has the advantages of simple production process, low production cost and high printing quality.

Description

Technical field [0001] The present invention relates to a printing method for metal flat plates, in particular to a method of printing on metal flat plates such as tinplate, aluminum sheets, etc., by using metallic oil-based ink and ultraviolet curing ink respectively. Background technique [0002] At present, most metal printing equipment is two-color machines. With the continuous advancement and development of printing technology, metal printing multi-color machines are gradually maturing and are widely used in metal printing packaging. Products on the market usually use color to attract consumers. Exaggerated and multi-color packaging reflects the personalization, differentiation, and specialization of the product. However, if the above packaging requirements are produced using a two-color machine, it will need to go through multiple processes. The process is complex, the production cost is high, and the oven rack mark is obvious. The degree of automation is low, and prin...

Claims

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Application Information

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IPC IPC(8): B41M1/28
Inventor 马伦
Owner HANGZHOU CPMC
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