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Method for manufacturing a shape memory anti-counterfeiting mark

A technology of anti-counterfeiting marks and production methods, which is applied in the direction of instruments, identification devices, seals, etc., can solve the problems of not recording the production process of shape memory anti-counterfeiting marks, and achieve the effects of convenient deformation detection, low cost and simple manufacturing process

Inactive Publication Date: 2010-11-03
GUANGZHOU MANBORUI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method does not record the specific manufacturing process of the shape memory anti-counterfeiting label.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Using a single-screw sheet extrusion unit, the roller surface of the sheet extrusion unit is set with multiple identical patterns or multiple groups of the same characters, and these same patterns or characters are at a certain distance from each other (the distance depends on The degree to which the extruded sheet is calendered and thinned later. When the thickness of the extruded sheet is constant, the thinner the sheet is calendered, the greater the distance between the same patterns or characters), these same patterns or characters It is also convex or concave. Use this sheet extrusion unit to extrude polymer materials with shape memory properties, such as norbornene, trans-polyisoprene, polyurethane, styrene-butadiene copolymer, etc., into a surface that corresponds to the roller The thickness of the plate of the pattern or text is 0.2-2mm (1.5mm is better). These plates are irradiated and crosslinked, and the above irradiated crosslinked plates are heated, and the...

Embodiment 2

[0010] The polymer material with shape memory function can also be extruded into a flat sheet. The thickness of the flat sheet is preferably 0.2-2.0mm. The sheet is cut into the required specifications according to the size of the hot pressing mold, such as 0.5×0.5 meters, or 0.3×0.2 meters, etc., and then put the board into the hot pressing mold, and hot-press the uneven pattern (or a group of characters and a shape) on the surface of the board, and the molded surface has the uneven pattern ( Or a group of characters and shapes) plate is irradiated and crosslinked, and then the irradiated crosslinked surface has a concave-convex pattern (or a group of characters and a shape) by heating and calendering it into a film with a three-roll calender. The thickness of the film is preferably 0.1-0.3mm. After such calendering, a sheet with a pattern (or a group of characters and a shape) on the surface becomes a larger area and a flat surface. The degree to which the pattern (or a group...

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Abstract

The invention discloses a method for manufacturing a shape memory anti-counterfeiting mark, which is characterized by comprising the following steps of: manufacturing a polymer material having a shape memory function into boards of which the surfaces are provided with uneven patterns, wherein appropriate distances should be reserved among the patterns on the board to ensure that the patterns are not superposed with one another in the subsequent calendering process; irradiating and cross-linking the boards; heating the boards of which the surfaces are provided with the uneven patterns after irradiating and cross-linking, and calendering the boards into thin films by using a three-roll calender to ensure that the boards of which the surfaces are provided with the uneven patterns become the films with smooth surfaces through the calendering; and according to the calendering degree of the patterns, cutting the films into a plurality of small pieces only containing one pattern. The method has the advantages of simple manufacturing process, convenient deformation detection and low cost; and by using a characteristic that a high molecular polymer having a shape memory effect is used for shaping the shape memory anti-counterfeiting mark, the method can realize anti-counterfeiting on a wine bottle cap.

Description

Technical field [0001] The invention relates to a manufacturing method, in particular to a manufacturing method of a shape memory anti-counterfeiting mark. Background technique [0002] The Chinese patent (Patent No. 200410051383.1) discloses the name "An anti-counterfeiting method for product packaging", which provides a new anti-counterfeiting method. However, this method does not record the specific manufacturing process of the shape memory anti-counterfeiting mark. Summary of the invention [0003] The purpose of the present invention is to provide a method for manufacturing a shape memory anti-counterfeiting mark with simple manufacturing process, convenient deformation detection, and low cost. [0004] The object of the present invention can be achieved by the following measures: a method for manufacturing a shape memory anti-counterfeiting mark, which is characterized in that: a polymer material with a shape memory function is made into a sheet with concave and convex patter...

Claims

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Application Information

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IPC IPC(8): G09F3/03B29C59/18B29C43/24
CPCB29C43/222B29C61/06B29C59/18
Inventor 章中群章一叶柯丽兰
Owner GUANGZHOU MANBORUI MATERIAL TECH
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