Method for making nuclear microporous anti-fake identification

A technology of anti-counterfeiting marks and production methods, which is applied in the field of nuclear microporous anti-counterfeiting marks, and can solve the problems of limited thickness of plastic films, etc.

Inactive Publication Date: 2003-05-21
北京清华试金石新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The above two methods of making anti-counterfeiting marks can only be irradiated with heavy ions, such as accelerator-accelerated 32 S or fission fragments, the thickness of the plastic film that can be used is limited, such as 8 to 25 microns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Irradiate a 20-micron plastic film with heavy ions generated by an accelerator, soak it in a 90°C DMF solution for 2 minutes to sensitize it, then put it in 60°C water for 10 minutes, and then print on one side of the film with an adhesive, and use it on the other side After the pre-coating film is protected, it is etched in 6.5N NaOH solution at 90°C for 2 minutes, and the anti-counterfeiting mark can be made after cleaning and drying.

Embodiment 2

[0039] Example 2: Use reactor neutrons to irradiate fission fragments produced by fission sources to irradiate 12-micron plastic films, soak in 90°C DMF solution for 1 minute to sensitize, then use adhesive to print on one side of the film, and protect the other side with a pre-coated film. Etching in 6.25N NaOH solution at 90°C for 1.58 minutes, the nanometer anti-counterfeiting track film is made.

Embodiment 3

[0040] Example 3: Use heavy ions generated by an accelerator to irradiate a 5-micron plastic film, soak it in a DMF solution at 40°C for 20 minutes to sensitize it, then put it in water at 70°C for 5 minutes, print on one side of the film with an adhesive, and pre-coat it on the other side After the film is protected, it is etched in 6.5N NaOH solution at 90°C for 2 minutes, and the anti-counterfeiting mark can be made after cleaning and drying.

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PUM

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Abstract

The invention refers to the manufacturing method for core micro hole anti-false identification, it incldues: it uses heavy or light ion to lighten plastic film; then the film is added into di-methyl acyl amine liquid; it prints patterns on the surface of film with adhesive and carries on chemical etching; cleaning; drying.

Description

technical field [0001] The invention belongs to the field of anti-counterfeiting technology, in particular to a method for making a nuclear micropore anti-counterfeiting mark. Background technique [0002] Today, when counterfeiting and shoddy products are rampant, anti-counterfeiting technology is increasingly showing its irreplaceable role in maintaining national economic order, combating counterfeiting and illegal activities, protecting famous brands and protecting consumer interests. [0003] Application No. 94104555.2 discloses a method for making anti-counterfeiting marks by using heavy ions to irradiate and image through a template, and the steps are as follows: [0004] 1) Irradiate the plastic film with a heavy ion template; [0005] 2) Etching and developing with NaOH; [0006] 3) cleaning; [0007] 4) dry. [0008] The anti-counterfeiting label pattern produced by this method is composed of a large number of micropores, and the pattern area becomes milky white...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/00G09F3/02
Inventor 王玉兰郑成武刘宣玮陈大年
Owner 北京清华试金石新技术有限公司
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