Plastic film product pressure printing technology

Abstract

Based on existing general embossment and printing technology, the plastic films product pressure printing technology incorporating the invention is created through innovate reforming and integration the two aspects advantages and is suitable for plastic films product printing. In the invention, a metal rolling and a plastic rolling are mounted in parallel and exerted pressure to form a pressure clamping rolling, using metal plate as graph plate to prepare graph letterpress utilizing existing gravure plate-making technology, words and patterns on metal plate are printed on plastic films through moderate pressure in case of plastic films squeezing through the two rolling contact positions to satisfy grey graph print. The preparation process is very simple by changing embossment rolling for increasing depth and hand feeling to plate rod, mounting fastening and pressure-conditioning device to mounting special purpose letterpress graph metal plate. The both sides of plastic bag prepared by plastic films blown in the method have one correctitude graph and one inverse graph. The invention achieves the aim of marking each plastic bag and meanwhile the traditional printing process harmful to environment is omitted.

Description

Technical field: [0001] The invention relates to a printing technology for plastic film products, which is completely different from the conventional printing. It does not need to use any ink, but uses pressure to produce indentations, so as to achieve the purpose of printing. Background technique: [0002] At present, there are two types of plastic film printing: flexo (also called letterpress or offset) and gravure printing. The inks used are water-based or oil-based. However, no matter which ink is used, chemical ingredients are used. The printing It is harmful to the human body and the environment. The printing process and molding process are prone to waste products, and the finished products are difficult to recycle and process, and the value is extremely low, causing great harm to the environment. [0003] At present, the embossing roller on the general film blowing machine is a small dot that is pressed into pieces on the plastic film, so that the plastic film has a t...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two types of plastic film printing: flexo (also called letterpress or offset) and gravure printing. The inks used are water-based or oil-based. However, no matter which ink is used, chemical ingredients are used. The printing It is harmful to the human body and the environment. The printing process and molding process are prone to waste products, and the finished products are difficult to recycle and process, and the value is extremely low, causing great harm to the environment.

[0003] At present, the embossing roller on the general film blowing machine is a small dot that is pressed into pieces on the plastic film, so that the plastic film has a thicker feel and texture, so as to achieve the purpose of filling the thickness with thinness and saving materials, but the traditional embossing The roll cannot be used for logo printing

Because of the high embossing roller manufacturing technology, it is not convenient to replace the graphics and texts for embossing