Production method of printing gloss oil composite film

Abstract

The invention provides a production method of a printing gloss oil composite film, which comprises the following steps: S1) slitting and layering: layering and separating an original film with insufficient strength between the films into a roll A and a roll B through a slitting machine; the method comprises the following steps: S1, in the process of slitting an original film by a slitting machine, firstly, soaking the original film in hot water at 70-80 DEG C for 10-15 minutes, and respectively feeding a roll A of raw material and a roll B of raw material after slitting into an air heater for air drying; s2) gloss oil coating: fully coating the gloss oil on the original binding surface of the roll A through a printing machine; the gloss oil used in the step S2 is environment-friendly UV gloss oil, the strength between the films can be effectively improved, the performance of the films can meet the requirement for long-time storage, and meanwhile the problems that the performance of existing printing films is reduced and the existing printing films can only be scrapped after being produced and stored for a long time can be solved; and after the film is cured, the inter-film strength of the film is obviously improved, and various technical requirements of the casing film and the use requirements of customers can be completely met.

Description

technical field [0001] The invention relates to the technical field of packaging film production technology, in particular to a production method of a printing varnish composite film. Background technique [0002] The market share of plastic packaging and plastic packaging products is increasing, especially the composite plastic flexible packaging and printing composite film have been widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion. Such as beverage packaging, frozen food packaging, retort food packaging, fast food packaging, etc. These products have brought great convenience to people's lives. [0003] After the printing film in the prior art is produced, it will be placed in a dust-free warehouse for a long time for some reasons and cannot be sold in time. Due to the long-term placement, the strength between the films will not meet the requirements. If the method for improving the strength be...

AI Technical Summary

Problems solved by technology

[0003] After the printed film in the prior art is produced, it will be placed in a dust-free warehouse for a long time for some reasons and cannot be sold in time. Due to long-term storage, the inter-film strength will not meet the requirements. If no effective way to improve the inter-film strength can be found , the printed film produced in this prior art will become a waste product after long-term storage, unable to meet the factory standard, and has no value

[0004] At the same time, after the film is produced, the strength between the film and the film will become weaker after a period of time, resulting in quality problems such as air bubbles during the use of the product by customers

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