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Novel paperboard printing process

A new type of cardboard technology, applied in printing, printing devices, etc., can solve problems such as increasing process complexity, achieve uniform roughness distribution, low operating costs, and improve the effect

Active Publication Date: 2019-07-12
昆山科望快速印务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Cold stamping has the advantages of fast stamping speed, low energy consumption, and low production cost of metal plate cylinders; however, the bonding degree of aluminum foil and glue of cold stamping is worse than that of traditional hot stamping, so it must be glazed or covered with wax after cold stamping. Protects the hot stamping pattern, which increases the complexity of the process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A novel cardboard printing process, comprising the following steps:

[0028] (1) Cold foil foil pretreatment

[0029] Lay acid and alkali-resistant wire mesh on the surface of the cold stamping foil (the wire made of metal and non-metal as raw material, woven according to requirements); use 30wt% nitric acid solution (temperature 50 ℃) with scraper coating Put it on the screen (repeatedly scrape and coat 3 times to improve the corrosion effect), 30wt% nitric acid solution penetrates through the mesh of the screen and contacts the surface of the cold-foil foil; after standing for 20s, the surface of the cold-foil foil has a fine roughness, which is beneficial to UV The glue is closely combined with the surface of the cold stamping foil;

[0030] Wash and dry the cold iron foil sequentially.

[0031] (2) Adhesive coating of printed cardboard

[0032] Apply the UV glue evenly to the printing cardboard; the UV glue includes: 100 parts by mass of polyurethane acrylate oli...

Embodiment 2

[0040] A novel cardboard printing process, comprising the following steps:

[0041] (1) Cold foil foil pretreatment

[0042] Lay acid and alkali-resistant wire mesh on the surface of the cold stamping foil (the wire made of metal and non-metal as raw material, woven according to requirements); use 30wt% nitric acid solution (temperature 60 ℃) with scraper coating Put it on the screen (repeatedly scrape twice to improve the corrosion effect), 30wt% nitric acid solution permeates through the mesh of the screen and contacts the surface of the cold iron foil; after standing for 1s, the surface of the cold iron foil has a fine roughness, which is beneficial to UV The glue is closely combined with the surface of the cold stamping foil;

[0043] Wash and dry the cold iron foil sequentially.

[0044] (2) Adhesive coating of printed cardboard

[0045] Apply the UV glue evenly to the printing cardboard; the UV glue includes: 40 parts by mass of polyurethane acrylate oligomer, 60 part...

Embodiment 3

[0053] A novel cardboard printing process, comprising the following steps:

[0054] (1) Cold foil foil pretreatment

[0055] Lay acid and alkali-resistant wire mesh on the surface of the cold stamping foil (the wire made of metal and non-metal as raw material, woven according to requirements); 30wt% nitric acid solution (temperature 45 ℃) is used for scraping Put it on the screen (repeatedly scrape and coat 5 times to improve the corrosion effect), 30wt% nitric acid solution penetrates through the mesh of the screen and contacts the surface of the cold ironing foil; after standing for 5s, the surface of the cold ironing foil has a fine roughness, which is beneficial to UV The glue is closely combined with the surface of the cold stamping foil;

[0056] Wash and dry the cold iron foil sequentially.

[0057] (2) Adhesive coating of printed cardboard

[0058] Apply the UV glue evenly to the printing cardboard; the UV glue includes: 50 parts by mass of polyurethane acrylate oli...

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PUM

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Abstract

The invention relates to a novel paperboard printing process. The novel paperboard printing process comprises the following steps of cold stamping foil pretreatment, printing paper board gluing, pressing, ultraviolet curing, stripping and the like. According to the novel paperboard printing process, the corrosion liquid is in contact with a cold stamping foil in a silk-screen scraping and coatingmode, and the surface of the cold stamping foil is corroded, so that the roughness of the cold stamping foil can be simply and effectively increased, the bonding degree of the UV glue and the surfaceof the cold stamping foil is improved, and the printing effect is improved; and meanwhile, compared with other conventional corrosion methods, the roughness distribution of the surface of the cold stamping foil after corrosion is more uniform. The novel paperboard printing process is simple to operate and low in operation cost.

Description

technical field [0001] The invention relates to the field of printing, in particular to a novel cardboard cold stamping printing process. Background technique [0002] The principle of cold stamping technology is: cold stamping uses a specific cold stamping foil; UV glue is directly applied to the position of the printing material to be decorated during printing; during cold stamping, under the action of a pair of gold rollers, the cold stamping The foil is in contact with the UV glue and pressed together. Due to the strong adhesion between the UV glue and the cold stamping foil, when the waste is discharged, the part where the cold stamping foil contacts the UV glue remains on the surface of the printing material and becomes one with the printing material, while the other parts of the cold stamping foil are discharged in the same way as the traditional hot stamping. waste. [0003] Cold stamping has the advantages of fast stamping speed, low energy consumption, and low pr...

Claims

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Application Information

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IPC IPC(8): B41M1/22
CPCB41M1/22
Inventor 徐雪东石金升
Owner 昆山科望快速印务有限公司