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Method for manufacturing a shape memory anti-counterfeiting mark

An anti-counterfeiting label and manufacturing method technology, which is applied to instruments, identification devices, seals, etc., can solve the problem of not recording the manufacturing process of shape memory anti-counterfeiting labels, and achieve the effects of convenient deformation detection, simple manufacturing process and low cost.

Inactive Publication Date: 2012-06-06
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 groups of identical characters, and these identical patterns or characters have a certain distance from each other (the size of 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 Also convex or concave. Using such a sheet extruding unit, the polymer materials with shape memory properties, such as norbornene, trans-polyisoprene, polyurethane, styrene-butadiene copolymer, etc., are extruded into a surface with a surface corresponding to the roller. The plate with the pattern or text, the thickness of the plate is 0.2-2mm (1.5mm is better). These sheets are cross-linked by radiation, and then the above-mentio...

Embodiment 2

[0010] The polymer material with shape memory function can also be extruded into a flat plate, the thickness of the flat plate is preferably 0.2-2.0mm, and the plate is cut into the required specifications according to the size of the hot pressing die, such as 0.5 × 0.5 meters, or 0.3 × 0.2 meters, etc., and then put the plate into a hot-pressing mold, hot-press a concave-convex pattern (or a group of characters and a shape) on the surface of the plate, and the molded surface has a concave-convex pattern ( or a group of characters and shapes) are irradiated and cross-linked, and then the cross-linked surface has a concave-convex pattern (or a group of characters and a shape) The plate is heated and rolled into a film with a three-roll calender, The thickness of the film is preferably 0.1-0.3mm. After such calendering, the sheet with a concave and convex pattern (or a group of characters and a shape) on the surface becomes a film with an enlarged area and a flat surface. The de...

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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, the method does not record the specific production process of the shape memory anti-counterfeiting mark. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a manufacturing method of 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 making a shape memory anti-counterfeiting mark, characterized in that: a polymer material with a shape memory function is made into a plate with a concave-convex pattern on the surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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