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A paper coating method for UV curing before coating

A technology of paper and film coating, which is applied in the post-processing of printing, printing, etc., can solve the problems such as the decrease of adhesion between film and paper printed matter, and achieve the effects of stable film firmness, improved quality, and low production cost

Active Publication Date: 2020-09-08
温州光明印刷机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Laminating in this way may cause a decrease in the adhesion between the film and the paper print due to the incomplete drying of the ink on the surface of the paper print

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Use a UV curing lamp with a wavelength of 365nm to irradiate the paper printed matter before lamination. The lamination method is carried out as follows: a. Adjust the irradiation power of the UV curing lamp so that the amount of UV irradiation light is at 800mj / cm 2 ; b. Adjust the speed of the conveying system so that the speed is at 10m / min; c. Adjust the working parameters of the coating device so that the temperature of the heating roller is at 80°C, the coating pressure is at 5MPa, and the coating speed is at 10m / min; d. Place the paper printed matter that needs to be coated on the paper feeding device; e. The paper printed matter is transported into the UV curing device through the paper feeding device, and the ink on the surface of the paper printed matter is dried and cured by using the ultraviolet light in the UV curing device. Processing; f, UV curing device drying, cured paper printed matter enters the laminating device through the conveying sys...

Embodiment 2

[0029] Embodiment two: use the UV curing lamp of wavelength 365nm to irradiate the paper printed matter before lamination, and the lamination method is carried out as follows: a, adjust the irradiation power of the UV curing lamp so that the UV irradiation light is at 1000mj / cm 2 ; b. Adjust the speed of the conveying system so that the speed is at 20m / min; c. Adjust the working parameters of the laminating device so that the temperature of the heating roller is at 85°C, the laminating pressure is at 6MPa, and the laminating speed is at 20m / min; d. Place the printed paper that needs to be coated on the paper feeding device; e. The printed paper is transported into the powder removal device through the paper feeding device for powder removal treatment; f. The printed paper after powder removal enters the UV curing device through the conveying system. Utilize the ultraviolet light in the UV curing device to dry and cure the ink on the surface of the paper printed matter; g, the U...

Embodiment 3

[0030] Embodiment three: use the UV curing lamp of wavelength 365nm to irradiate the paper printed matter before lamination, the lamination method is carried out according to the following steps: a, adjust the irradiation power of UV curing lamp, make its UV irradiation light amount be at 1200mj / cm 2 ; b. Adjust the speed of the conveying system to make it 30m / min; c. Adjust the working parameters of the laminating device so that the temperature of the heating roller is at 90°C, the laminating pressure is at 7MPa, and the laminating speed is at 30m / min; d. Place the printed paper that needs to be coated on the paper feeding device; e. The printed paper is transported into the powder removal device through the paper feeding device for powder removal treatment; f. The printed paper after powder removal enters the UV curing device through the conveying system. Utilize the ultraviolet light in the UV curing device to dry and cure the ink on the surface of the paper printed matter; ...

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Abstract

The invention discloses a UV cured paper film coating method before film coating. The UV cured paper film coating method sequentially comprises the following steps: S1, a paper printed matter needingfilm coating is placed on a paper feeding device; S2, the paper printed matter is conveyed by the paper feeding device and enters a UV curing device, and ultraviolet lamplight in the UV curing deviceis utilized to irradiate the paper printed matter to carry out drying and curing treatment on ink on the surface of the paper printed matter; S3, the paper printed matter after drying and curing treatment of the UV curing device enters a film coating device via a conveying system, and the film coating device overlaps and pastes the paper printed matter and the film; and S4, the film coated paper printed matter enters a paper receiving device via the conveying system to be collected, wherein the conveying speed of the conveying system is 10m / min to 100m / min. The UV cured paper film coating method has the following benefits: the adhesive force between the film and the paper printed matter after film coating is increased to improve the quality of film coated paper printed matter.

Description

technical field [0001] The invention relates to a processing method of coated paper, in particular to a paper coating method of UV curing before coating. Background technique [0002] UV is the abbreviation of "Ultraviolet" in English, that is, ultraviolet light. UV curing is ultraviolet light curing. Radiation hardening technology that allows the polymerized monomers contained in the chemical to produce glue hardening within a short period of time (less than 1 second), also known as UV hardening. [0003] There are many types of printing inks, and their performance varies greatly. After years of practice, it has been found that the dryness of the ink on the surface of the paper after printing has a greater impact on the quality of the film, and affects the lamination firmness of the film and the printed paper. Ink can be divided into oxidative drying ink and evaporation drying ink according to the drying type. For oxidative drying ink, it is aged and dried by the chemical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M7/00
CPCB41M7/0036B41M7/0081
Inventor 张昌木
Owner 温州光明印刷机械有限公司