Variable local holographic anti-counterfeiting safety line and preparation method thereof

Abstract

The invention relates to an anti-counterfeiting safety line, in particular to a variable local holographic anti-counterfeiting safety line and a preparation method thereof. The variable local holographic anti-counterfeiting safety line includes a plastic film layer, a permanent embossing information layer and a positioning embossing layer which are arranged in sequence from top to bottom; the lower portion of the positioning embossing layer is sequentially provided with a local hollow printing layer and a local aluminum coated layer which contain partial variable information respectively, thepartial variable information is combined to form complete variable information, each piece of partial variable information includes a two-dimensional code, a release layer is arranged between the local hollow printing layer and the local aluminum coated layer, and the lower portion of the corresponding local aluminum coated layer is provided with a hidden ink layer. According to the anti-counterfeiting safety line, a holographic pattern is combined with a printing pattern, the variable information has a holographic alumite effect and is not easy to imitate, identification is simple, the anti-counterfeiting effect is good, the variable information is destroyed when the safety line is taken out from paper, and secondary use can be effectively prevented. The preparation method is scientific,reasonable, simple and easy to perform.

Description

technical field [0001] The invention relates to an anti-counterfeiting security thread, in particular to a variable partial holographic anti-counterfeiting security thread and a preparation method thereof. Background technique [0002] Anodized aluminum, also known as hot stamping paper, is a hot stamping material composed of polyester film (PET) and a multi-layer chemical coating coated on its surface. According to the hot stamping variety, it can be divided into three categories: ordinary anodized aluminum, Hologram anodized aluminum, holographic positioning anodized aluminum. The production process of ordinary anodized aluminum is simple, the color material layer is single color, no molded layer, and the hot stamping pattern is single, and it is mainly used in products that do not require high surface decoration effects; hologram anodized aluminum is molded on the colored layer. Form a variety of laser holographic patterns, which are widely used in the commodity packagin...

AI Technical Summary

Problems solved by technology

The current preparation process of the holographic anti-counterfeiting security thread is as follows: the substrate is coated with a molded information layer, and then molded, the aluminum ink is washed, the aluminum is plated, and the aluminum is washed. The anodized aluminum of the holographic anti-counterfeiting security thread produced is fixed and cannot Realize the variable of holographic anodized aluminum

It is not convenient for product logistics management and anti-counterfeiting query digital management

Moreover, the anti-counterfeiting security thread holographic pattern and printed pattern on the market are relatively independent, which is easy to be faked. The holographic pattern and printed pattern are not integrated together, and the design sense is poor.

[0004] In addition, the existing security thread is generally verified after being pulled out of the paper. The security thread can be completely removed from the backing paper, and the security thread will not be damaged during the verification process. The information on the security thread is still complete. Molecules can be pulled out of paper and reused for paper making, no second use of security thread

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