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Ultraviolet (UV) base oil metal tank UV printing and coating method

A metal can and primer technology, applied in coating, printing, printing devices, etc., can solve the problems of consuming natural gas energy, occupying production line resources, and cumbersome plate-making procedures, saving gas energy, improving coating performance, and resisting cooking. good effect

Active Publication Date: 2014-07-09
SHANGHAI BAOYIN METAL DECORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional metal can printing and coating method uses a solvent-based acrylic paint-primer to coat the surface of the tinplate before printing, and then uses a gas oven to cure the surface coating of the tinplate, which consumes a lot of energy. , serious exhaust emissions, which is not conducive to energy saving and emission reduction
[0004] The traditional surface treatment of substrates uses drying room heating for surface drying and degreasing, which occupies production line resources, is inefficient, and also consumes a large amount of natural gas energy
[0005] The traditional pre-press plate-making process is graphic data information processing → RIP raster processing → making film film → drying traditional PS plate. The plate-making procedure is cumbersome and inefficient, which is not conducive to mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Taking the UV printing and coating method of a metal tank with UV base oil of the present invention to produce a 2L wood paint for a chemical tank as an example, the hardness of the tinplate is T2.5, and the amount of tin plating is 2.8 / 2.8g / m 2 (i.e. inner surface 2.8g / m 2 , outer surface 2.8g / m 2 ), the iron sheet specification is 0.25mm×755mm×800mm, which includes the following steps:

[0053] 1) Computer-to-plate making, using pre-press professional plate-making software to make graphics and texts, and then using a computer-to-plate-making machine to print the prepared files into a PS plate (pre-coated photosensitive version Presensitized Plate) for printing;

[0054] 2) Surface treatment of the iron sheet. In the feeding part of the iron printing machine, the prepared plain iron with a hardness of T2.5 is transported to the flame processor in the front section of the UV iron printing machine. After a high temperature of 650°C, the speed is 90 sheets / min. Treat th...

Embodiment 2

[0065] Take the UV printing and coating method of the UV bottom oil metal tank of the present invention to produce a certain spray can fragrance type as an example, the tinplate hardness is T3, and the tin plating amount is 2.8 / 1.1 (that is, the inner surface 2.8g / m 2 , outer surface 1.1g / m 2 ), the iron sheet specification is 0.20mm×833mm×730mm, which includes the following steps:

[0066] 1) Computer-to-plate making, using pre-press professional plate-making software to make graphics and texts, and then using computer-to-plate-making machines to make PS plates required for printing on the machine;

[0067] 2) Iron sheet surface treatment, in the feeding part of the iron printing machine, the prepared plain iron with a hardness of T3 is transported to the flame processor in the front section of the UV iron printing machine, and the iron sheet is treated at a speed of 90 sheets / min at a high temperature of 600°C. Treat the surface of the sheet to eliminate oil, dust, burrs an...

Embodiment 3

[0079] Adopt the UV printing coating method of a kind of UV primer metal can of the present invention to produce certain beverage can as example, tinplate hardness is T4, tin plating amount is 2.8 / 5.6 (being inner surface 2.8g / m 2 , outer surface 5.6g / m 2 ), the specification of tinplate is 0.20mm×824mm×997mm, which includes the following steps:

[0080] 1) Computer-to-plate making, using pre-press professional plate-making software to make graphics and texts, and then using computer-to-plate-making machines to make PS plates required for printing on the machine;

[0081] 2) Internal coating, epoxy phenolic paint is used to coat the inner surface of the tinplate, and the coating amount is 6g / m 2 , the drying temperature is 203°C, and the drying time is 10 minutes;

[0082] 3) Tinplate surface treatment, in the feeding part of the iron printing machine, the coated iron sheet is conveyed to the flame processor in the front section of the UV iron printing machine, and the iron ...

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Abstract

The invention relates to an ultraviolet (UV) base oil metal tank UV printing and coating method which includes the following steps: 1) pre-printing computer direct platemaking; 2) inner coating which includes adopting inner coating to coat the inner surface; 3) conducting instantaneous high temperature processing on the surface of a base material; 4) instantaneous continuous completion of UV base oil coating, UV base oil solidification through a UV lamp and UV ink printing; 5) follow-up continuous solidification of a UV ink layer through a UV lamp group; 6) conducting polishing and coating to protect printed patterns from being scrapped and damaged. By means of the method, the UV base oil outer coating replaces the traditional solvent type base oil outer coating, the film layer is thin, natural gas energy consumed by tunnel type drying room drying and solidification and waste gas discharged to the nature are greatly reduced, the energy is saved, and the environment is protected. In addition, the new process that the UV base oil coating and UV ink printing are finished together continuously is achieved, the printing and coating production efficiency can be greatly improved, and meanwhile coating capacity of a coating line is released.

Description

technical field [0001] The invention relates to tinplate printing technology, in particular to a UV printing and coating method for UV primer metal cans. Background technique [0002] In the printing and coating process of metal cans, before printing, a layer of paint is applied on the surface of the tinplate to strengthen the better bonding between the substrate and the ink, otherwise the ink will be difficult to adhere to the surface of the tinplate. [0003] The traditional metal can printing and coating method uses a solvent-based acrylic paint-primer to coat the surface of the tinplate before printing, and then uses a gas oven to cure the surface coating of the tinplate, which consumes a lot of energy. , serious exhaust emissions, which is not conducive to energy saving and emission reduction. [0004] The traditional surface treatment of substrates uses drying room heating for surface drying and degreasing, which occupies production line resources, is inefficient, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/28C09D163/10C09D175/14C09D7/12
Inventor 徐红波
Owner SHANGHAI BAOYIN METAL DECORATION
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