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A film double-sided molding method

A film and molding technology, which is applied in printing, rotary printing machines, printing machines, etc., can solve the problems of cumbersome plastic film handling, affecting film printing efficiency, and difficulty in meeting process requirements, etc., and achieves small film deformation, high production efficiency, and smoothness good effect

Active Publication Date: 2018-06-29
FOSHAN NAN HAI DISTRICT SANJIAN PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The plastic film is cumbersome to carry, which often affects the printing efficiency of the film. Moreover, printing holographic patterns on the forward and reverse embossed sides of the plastic film requires high positioning accuracy of the graphics printed on the front and back of the plastic film. The position error of the holographic image embossed on the front and back embossed surfaces of the coating film must be less than 0.01mm. It is difficult to meet the process requirements by using a hot molding machine and a UV molding machine alone for molding.

Method used

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  • A film double-sided molding method
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  • A film double-sided molding method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0032] Taking the molded double-coated PET film as an example, in the present embodiment 1, the reverse imprinting surface of the PET film is coated with a printing layer, and the printing layer is used to increase the adhesion between the UV coating and the PET film. The printing layer itself has no imaging function; the PET film is coated with a holographic molding layer on the front imprinting surface, and the whole system molding layer is used to carry the holographic image information. using as figure 1 For the molding machine shown, the specific molding process is as follows:

[0033] A) Use 3M strong high temperature double-sided tape to roll and stick a holographic metal nickel plate on the second plate roller 2 of the hot molding system 1;

[0034] B) utilize 3M strong double-sided tape to roll and stick a metal optical nickel plate on the first plate roller 4 of the UV molding system 3, and this metal optical nickel plate is engraved with optical microstructures, su...

Embodiment 2

[0047] The difference between the present embodiment 2 and the embodiment 1 is that, such as Figure 2-4 As shown, in the second embodiment, the molding machine used for molding the film further includes an adjustment system, which includes a positioning adjustment roller 20, a hydraulic cylinder 21, a detection light source 22 and a detection light source receiving device corresponding to the detection light source 22. ; The hydraulic cylinder 21 is used as the driving device, and its piston rod is connected with the positioning adjustment roller 20. The detection light source receiving device includes a receiving probe 23 and a computer system, the receiving probe 23 is data-connected with the computer system; the hydraulic cylinder 21 is also data-connected with the computer system through electronic components.

[0048] In the present embodiment 2, the specific process of molding is as follows:

[0049] A) Use 3M strong double-sided tape to roll and stick a metal optical ...

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Abstract

The invention discloses a film double-sided molding method. The molding method utilizes a front-reversing system and a rear-reversing system, so that the UV molding system and the thermal molding system connected front and back can mold the forward embossing surface and the reverse embossing surface of the film. And the adjustment system is used to ensure the precise alignment of the patterns molded on the positive embossing surface and the reverse embossing surface of the film. The invention has precise positioning, the film does not need to be transported during the molding process, and the production efficiency is high; the film has small deformation and good flatness during the production process, and the produced film can meet high-quality requirements.

Description

technical field [0001] The invention relates to holographic anti-counterfeiting and holographic laser packaging, in particular to a film double-sided molding method. Background technique [0002] The application of holographic laser image technology on plastic coated films was first introduced to China from the United States at the end of the last century. The principle is as follows: the holographic laser image is imaged on the photolithographic glass coating plate by the photographing method or the photolithography method, and then the holographic image on it is copied to the metal nickel plate by the electroforming method, and then the thickness is about 15~ The 80μm metal nickel plate with the holographic laser image is attached to the plate roll of the holographic laser embossing machine as a stamping plate. The layered film is pressurized, and the holographic image on the embossing plate is imprinted on the coated film, thereby making a roll of holographic laser (anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/00B41F19/02
Inventor 吴小华
Owner FOSHAN NAN HAI DISTRICT SANJIAN PACKING CO LTD