Production method of plain face transfer film with uniform brightness

Abstract

The invention relates to a production method of a plain face transfer film with uniform brightness. The production method comprises the following steps that S1, coating is carried out, particularly, a laser coating material is transferred to a PET base film and dried by a drying oven; S2, plate making is carried out, particularly, the brightness difference of the laser plate face is compensated by adjusting the thickness difference of a working plate, and the thickness of the working plate is adjusted according to the brightness of a master plate; S3, die pressing is carried out, particularly, a PET coating film coating is softened through heating and pressurization, and then laser patterns on the laser plate are transferred onto a PET coating film; and S4, aluminizing is carried out, and particularly, the brightness difference of the laser plate face is compensated through the thickness difference of an aluminum layer. By changing the thickness of the metal plate, the brightness difference of the laser plate is compensated, and the thickness of the aluminum plating layer is adjusted according to the brightness difference in an aluminizing process, so that the brightness difference of the plain face transfer film is controlled within two points, the plain face transfer film with the uniform brightness is formed, the problems that color mixing is difficult and the color difference is large in the printing process are solved, and the printing production efficiency and the finished product rate are greatly improved.

Description

technical field [0001] The invention relates to the technical field of packaging material production technology, more specifically, relates to a production method of a plain surface transfer film with uniform brightness. Background technique [0002] The transfer film is an intermediate carrier that exists on the transfer paper base or plastic base, carrying the printed or printed pattern, and is used to transfer to a layer of chemical elastic film on the printed article. Laser aluminized film is mainly used for paper-plastic compounding of high-grade printed matter, and then printing can become a high-grade integrated laser color printing carton packaging film, such as carton packaging film for cigarette boxes, daily chemicals, food, gift boxes, etc. Under the irradiation of light, the carton packaging film has a strong highlight and colorful light pattern effect, which improves the grade of printed matter. However, the above-mentioned products have problems of uneven brig...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a production method of a plain surface transfer film with uniform brightness, by changing the thickness of the metal plate to make up for the brightness difference of the original metal plate, and to control the brightness difference of the D38 plate plain surface transfer film within 2 points, thereby Solve the problems of difficult color matching and large color difference in the printing process

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