Processing method of paper and iron composite tank

Abstract

The invention relates to a processing method of a paper and iron composite tank. The thickness of an iron sheet is 0.14-0.35 mm, a decorative pattern is printed on surface paper through a printing machine, the surface of the surface paper is a plastic film layer, the iron sheet and the surface paper are pasted together in a roll-to-roll mode, then the composite iron sheet is bent into a non-closedtank blank through forming equipment, then a first connecting strip and a second connecting strip at the two ends of the tank blank are connected to form a closed cylindrical tank body, and the end of the closed cylindrical tank body is curled.

Description

technical field [0001] The invention relates to the packaging field, in particular to a processing method for a paper-iron composite can. Background technique [0002] At present, packaging cans generally use tinplate to print graphics and text, and then connect and curl the edges to form iron cans, or use already-formed round cans to paste printed facial paper to make packaging cans. The application of face paper on round cans is relatively limited. For square and special-shaped cans, there is no way to paste the face paper. Traditionally, graphics and text are printed on tinplate, and then shaped into special-shaped cans and square cans. The tin printing process requires baking printing. Several times, the cost is high, and the environment is polluted at the same time. The traditional film lamination uses roll-to-roll film lamination. In this way, the printing roll film needs to use an expensive gravure printing machine or flexo printing machine. At the same time, the need...

AI Technical Summary

Problems solved by technology

[0002] At present, packaging cans generally use tinplate to print graphics and text, and then connect and curl the edges to form iron cans, or use already-formed round cans to paste printed facial paper to make packaging cans. The application of face paper on round cans is relatively limited. For square and special-shaped cans, there is no way to paste the face paper. Traditionally, graphics and text are printed on tinplate, and then shaped into special-shaped cans and square cans. The tin printing process requires baking printing. Several times, the cost is high, and the environment is polluted at the same time. The traditional film lamination uses roll-to-roll film lamination. In this way, the printing roll film needs to use an expensive gravure printing machine or flexo printing machine. At the same time, the need for printing roll film It is suitable for a large order quantity, otherwise only tens of thousands of tin cans will be made, and the machine cost, printing fee, and material waste will be huge

At the same time, after the printed roll film and the iron sheet are pasted, it is necessary to position and cut the coated iron electronic eye, and to make a special positioning and cutting equipment. The cost of the equipment is high. The process cannot be done on the printed roll film

Printed roll film has many limitations in the production of specific wine cans, tea cans, and other miscellaneous cans

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