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Double-sided printing method for plastic film

A plastic film and double-sided printing technology, applied in printing, printing post-processing, printing devices, etc., can solve the problems of poor surface ink adhesion, large registration error, easy to be damaged, etc., to ensure fastness, solve The effect of ink sticking back and avoiding ink sticking to each other

Inactive Publication Date: 2019-01-11
三樱包装(江苏)有限公司
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AI Technical Summary

Problems solved by technology

At present, two-sided printing is mainly completed by offline two-time printing, which has low efficiency and large registration errors.
There is also a device on the market that reverses the printing of the film, but the ink on the surface has poor adhesion and is easily damaged; after winding, the surface and inner surface of the film are closely bonded, and there are serious problems such as the ink on the front and back sides sticking to each other. stay in theory

Method used

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  • Double-sided printing method for plastic film
  • Double-sided printing method for plastic film
  • Double-sided printing method for plastic film

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specific Embodiment

[0036] refer to figure 2 Shown, for the specific embodiment of the plastic film double-sided printing method provided by the present invention, this method specifically comprises:

[0037] (1) Film unwinding: install the transparent printing film raw material to the unwinding reel, ready for printing;

[0038] (2) On-line corona: The transparent printing film raw material has only one treatment surface. Before printing on both sides, it is necessary to carry out online corona treatment on the first surface of the transparent printing film raw material to increase the surface tension of the film, which is conducive to improving the surface printing ink. Excellent adhesion; at the same time, the synchronization between corona and printing is guaranteed, and the stability of corona is guaranteed.

[0039] (3) Inner printing: carry out the inner printing process of inner printed graphics and texts;

[0040] (4) Anti-adhesive barrier treatment: Due to the effect of winding tensi...

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Abstract

The invention relates to a double-sided printing method for a plastic film. The method includes the steps that (1) a first surface of the plastic film is subjected to online corona treatment; (2) a second surface of the plastic film is subjected to printing treatment; (3) after the printing treatment, the second surface of the plastic film is subjected to adhesion prevention and barrier treatment;(4) the plastic film is overturned, so that the first surface of the plastic film is to be printed; and (5) the first surface of the plastic film is subjected to printing treatment and precisely aligned at printed images of the second surface. According the double-sided printing method for the plastic film, a traditional gravure inner printing technology is broken, and by adoption of overturningprinting technology through a gravure printer, precise alignment of printed images on the positive and negative surfaces is completed; through the online corona treatment, the synchronism of corona and printing and the stability of corona are greatly ensured; and through online coating adhesion prevention and barrier materials, the problem of ink adhering back is solved without affecting the strength of the composite.

Description

technical field [0001] The invention relates to the field of printing technology, in particular to the field of composite packaging printing, in particular to a double-sided printing method for plastic films used in composite packaging. Background technique [0002] In the field of composite packaging, more and more end customers have put forward the need to combine the surface printing process with the inner printing process to achieve richer appearance and functionality. At present, two-sided printing is mainly completed by offline two-time printing, which has low efficiency and large registration errors. There is also a device on the market that reverses the printing of the film, but the ink on the surface has poor adhesion and is easily damaged; after winding, the surface and the inner surface of the film are tightly bonded, and there are serious problems such as the ink on the front and back sides sticking to each other. stay in theory. [0003] Therefore, need a kind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/30B41M7/00
CPCB41M1/30B41M1/305B41M7/0027
Inventor 孙锦刘磊
Owner 三樱包装(江苏)有限公司
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