Novel manufacturing process of plastic tube and plastic tube manufactured thereby

Abstract

The invention relates to a novel manufacturing process of a plastic tube. The manufacturing process firstly utilizes a reverse printer combined with the surface printing and imaging principle to carryout surface printing to a block layer used for manufacturing the plastic tube; preferably, after surface printing, the manufacturing process also comprises the following steps of: a, obtaining a composite sheet rolling film by extruding and compositing; b, welding two sides of the composite sheet rolling film for manufacturing a tube, thus obtaining a tube body; c, casting the shoulders on the tube body obtained in the step b by extruding and injecting; and more preferably, the manufacturing process further comprises the step between the step a and the step b of carrying out varnish printingon the surface of the composite sheet material film by utilizing a surface printer. The invention further provides a plastic tube manufactured by the manufacturing process. The plastic tube has skillful design of the manufacturing process, greatly improves the production efficiency and reduces the production cost, and the appearance of the produced flexible tube is delicate.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to the technical field of plastic pipe manufacturing, specifically a new manufacturing process for plastic pipes and the plastic pipes manufactured therefrom. Background technique [0002] The plastic film surface printing technology currently used in China is to slit the sheet after the production of the plastic sheet is completed, and then to print the slit sheet, and most of them are narrow-width printing, and the ink uses UV ink. , this type of production process is currently used the most, the reducibility of the image is strong, and it has a strong gloss after being coated with varnish, but the production efficiency is low and it has a high cost. There are many applications in materials. The gravure printing technology used in the back printing technology is mostly used for the back printing of plastic films. The plate-making pattern of the gravure back printing technolo...

AI Technical Summary

Problems solved by technology

[0002] The plastic film surface printing technology currently used in China is to slit the sheet after the production of the plastic sheet is completed, and then to print the slit sheet, and most of them are narrow-width printing, and the ink uses UV ink. , this type of production process is currently used the most, the reducibility of the image is strong, and it has a strong gloss after being coated with varnish, but the production efficiency is low and it has a high cost. There are many applications in materials. The gravure printing technology used in the back printing technology is mostly used for the back printing of plastic films. The plate-making pattern of the gravure back printing technology is opposite to the finished pattern. When printing, the color sequence is based on the covering rate from low to high. Determined by the sequence, the inner printing production process has higher production efficiency and lower production cost, but if there is a varnish process, it will affect the strength of the varnish due to the treatment surface, because when producing products with high brightness requirements , the varnish process needs to be carried out on the non-treated surface of the surface film, and the adhesion strength of the varnish is low. If the surface film with double-sided treatment is used, the cost will be increased

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