Processing technology for curved film

Abstract

The invention relates to a processing technology for curved film. The processing technology mainly comprises the following steps: step 1, utilizing a software to prepare the vi pattern of a needed pattern, and drawing fixing points at the positions with a distance of 4 mm from the pattern peripheral edges; step 2, outputting the film by exposure, and enabling the thickness of the film to be 0.6-1.8 mm; step 3, preparing a male mold and a female mold according to the outer edge dimension of the 3D graph contour of a product, wherein the thickness of the gap between the male mold and the female mold is accord with the thickness of the film; step 4, placing the film obtained in the step 2 in the mold cavity formed by the male mold and the female mold prepared in the step 3, heating to 200-220 DEG C, keeping for 3-5 s to soften the film; and step 5, enabling the male mold and the female mold to be pressed by each other and keeping for 3-5 s to harden and shape the film, and cooling to obtain the needed curved film.

Description

technical field [0001] This field relates to a manufacturing process of a film, in particular to a manufacturing process of a curved film capable of realizing precise pattern drawing on a curved surface with a large drop. Background technique [0002] Film is the transliteration of film, that is, the plate-making film used for printing. It is called film, film, and film in printing. After the upper line is arranged, the film is output, so that the content to be printed is fixed and output on the film, and then the content on the film is exposed to the zinc oxide plate through the exposure machine, and then the zinc oxide plate is installed on the printing machine. When printing something, the film is generally called a set. For a four-color printing machine, a set of film is four sheets, which are blue, red, yellow, and black, and are replaced by the letters C, M, Y, and K. The current film output is flat film. For some special printing, it is necessary to use a curved film...

AI Technical Summary

Problems solved by technology

The current film output is flat film. For some special printing, it is necessary to use a curved film with a certain angle. However, the existing technology cannot expose patterns on curved negatives. When the pattern is output on the Internet, it will cause the pattern to fold, wrinkle, etc., and the exquisite pattern cannot be obtained, so it cannot meet the requirements of use

It also hinders the wider application of film technology