PET blister mask as well as preparation method and application thereof

Abstract

The invention provides a PET blister mask as well as a preparation method and application thereof. The preparation method comprises the following steps of (1), designing and manufacturing a 3D mask model; (2), selecting a PET material as a base material, carrying out offset printing on the PET base material in a CMYK printing four-color mode, and then airing; (3), printing a white pattern on the mask pattern on the PET base material in a silk-screen printing manner, and airing; (4), processing the base material printed with the pattern into a designed 3D mask shape by using the 3D mask model through a plastic vacuum forming machine; and (5), carrying out special-shaped die cutting on the base material subjected to plastic uptake according to the size of the mask pattern so as to obtain the PET plastic uptake mask. According to the preparation method, the color part adopts CMYK printing four-color mode offset printing, and only the white part in the pattern adopts silk-screen printing, so that the problems of low efficiency, high loss and high cost of all silk-screen printing in the traditional technology are solved.

Description

technical field [0001] The invention relates to the technical field of plastic-absorbing products, in particular to a method for preparing a PET plastic-absorbing mask. Background technique [0002] Blister molding is a kind of plastic processing technology. The main principle is to heat and soften the flat hard plastic sheet, then absorb it on the surface of the mold by vacuum, and form it after cooling. It is widely used in plastic masks, plastic packaging, lighting, advertising, decoration, entertainment and other industries. [0003] At present, the production process of the blister mask mainly includes: fixing the plastic sheet, heating, forming, demoulding, and removing the edge to obtain the finished product. The traditional blister mask is made of 0.4mm thick PVC transparent sheet, which is screen-printed first, then dried, and then positioned and formed by blistering. Silk screen printing is to use the basic principle that the graphic part of the screen printing p...

AI Technical Summary

Problems solved by technology

The ink layer of the silk screen printing process is thick, and the ink consumption is large. It is about 3 times thicker than offset printing. The light curing speed is slow and the efficiency is low. Usually, 100,000 products are produced, and the delivery time takes about 35 days.

[0004] CN1947988A discloses a production method of plastic sheet thermoformed products, including printing multiple groups of patterns on transparent plastic films, and printing identification marks at corner positions; compounding plastic films on plastic sheets to obtain composite plastic sheets material; use the servo motor to drive the composite plastic sheet into the heating box to heat and soften, and then advance to the mold; use positive pressure air or negative pressure to make the composite plastic sheet close to the inner wall of the mold cavity at the corresponding position; cooling and setting, demoulding, punching Cut to obtain plastic products, however, the production method is complicated and the production efficiency is low

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