Composite safety line

A security thread and magnetic technology, applied in the field of composite security thread, can solve the problems of poor anti-counterfeiting effect and easy cracking, so as to increase the difficulty of cracking, improve security and anti-counterfeiting performance, and prevent counterfeiting or forgery

Active Publication Date: 2012-05-23
CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the technical problem to be solved by the present invention is that in the prior art, the security thread adopts the anti-counterfeiting method of magnetic coding. Since only one magnetic coding method is used, it is easy to be cracked and the anti-counterfeiting effect is not good. Coding method, security thread with improved anti-counterfeiting effect

Method used

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  • Composite safety line
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Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a specific embodiment of the security thread of the present invention is given, a composite security thread, comprising at least one base layer 1 bearing magnetic substances, and two magnetic anti-counterfeiting layers are arranged on the base layer 1, In the present embodiment, the two magnetic anti-counterfeiting information layers are nano-film layer 2 and magnetic information layer 3, and different magnetic codes that do not interfere with each other are arranged on the nano-film layer 2 and the magnetic information layer 3. , here also can be set as a plurality of magnetic anti-counterfeit information layers with different magnetic codes in other forms.

[0039] In the present embodiment, the width of the composite security thread is 1.5 mm, and the width can also be selected as 1-3 mm according to needs; the nano-film layer 2 and the magnetic information layer 3 are arranged on the same side of the base layer 1 , it can also be arranged...

Embodiment 2

[0044] On the basis of the above embodiments, the cover layer 4 is also provided with a protective base layer 7, such as figure 2 As shown, the base layer 1 and the protective base layer 7 form a protective interlayer, which is used to protect the magnetic anti-counterfeiting layer from deformation and damage, and prolong its service life. In this embodiment, the width of the safety thread is 2mm.

[0045] The preparation process of the composite security thread described in this embodiment is as follows: a peeling layer is coated on one side of a PET film with a thickness of 25 μm, and a nano-film layer 2 with a thickness of 100-200 nm is prepared on the peeling layer by a vacuum magnetron sputtering process , coating the adhesive layer on the nano-film layer 2, and then using the cold stamping transfer process based on ultraviolet curing technology to transfer the nano-film to the PET film base layer 1 with a thickness of 12 μm according to the designed size and interval to...

Embodiment 3

[0049] In this embodiment, the nanometer thin film layer 2 and the magnetic information layer 3 are arranged on both sides of the base layer 1, a protective base layer 7 is arranged on the nanometer thin film layer 2, and a protective base layer 7 is arranged on the magnetic information layer 3. A cover layer 4 is arranged on it, and the width of the composite security thread in this embodiment is 2.5 mm.

[0050] The preparation process of the composite security thread described in this embodiment is as follows:

[0051] Coating a peeling layer on one side of the PET film with a thickness of 35 μm, preparing a nano-film layer 2 with a thickness of 100-200 nm by vacuum magnetron sputtering on the peeling layer, and coating an adhesive layer on the nano-film layer 2, Then adopt the cold stamping transfer process to transfer the nano-film to the PET film substrate 1 with a thickness of 12 μm according to the designed size and interval to form a line code. The magnetic area of ​​...

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Abstract

The invention relates to a composite safety line, which comprises at least one substrate, wherein at least two magnetic anti-counterfeiting layers are arranged on the substrate; and non-interfering different magnetic codes are arranged on the two magnetic anti-counterfeiting layers. The technical problems that in the prior art, the safety line adopts an anti-counterfeiting manner by using magnetic codes, and only one magnetic code manner is adopted, so that the safety line is easy to crack down and has a poor anti-counterfeiting effect are solved; and the composite safety line adopts multiple magnetic code manners, has improved anti-counterfeiting effect, and is particularly applied to safety and anti-counterfeiting technology for paper currency, securities, bills, certificates and the like.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting materials and anti-counterfeiting technology, in particular to a composite security thread which can be used for banknotes, securities, ticket cards and similar items. Background technique [0002] At present, it is necessary to set anti-counterfeiting marks on many paper-based or similar items to improve their security performance, such as banknotes, securities, tickets, certificates, etc., by setting security lines to make them easy to identify, but not easy to be counterfeited or faked . The security thread has been widely used as an anti-counterfeit mark. Generally, the PET (polyethylene terephthalate, English name: polyethylene terephthalate, PET for short, high polymer) substrate carries anti-counterfeiting information. Combined with paper in the form of a window or a window. The anti-counterfeiting information layer of the security thread mostly uses the anti-counterfeiting method of ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/42D21H21/44
Inventor 曹瑜李万里张渠杨惊李新宇李晓伟常和峰李尚昆
Owner CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD
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