Shanghai Techsun Anti-counterfeiting Technology Holding Co., Ltd.

Shanghai Techsun Anticounterfeiting Technology Hol

Shanghai Techsun Rfid Technology Co., Ltd.

Shanghai Techsun Packing Materials Co. Ltd.

Liangheng Xu

Kai Yang

Yun Gao

Aiming Ge

Xuewen Xu

Jin Tao

Xiaodong He

Renshun You

Lanxin Dong

Zhixi Zhang

Xiaolei Zhuang

The present invention provides a radio frequency identification electronic tag with diversion-proof function and a process for making the same. The radio frequency identification electronic tag with diversion-proof function is formed of a supporting layer, a release liner, an antenna and a chip, wherein the release liner is bonded to one side of the supporting layer to form an entity, the antenna is bonded to the other side of the release liner, or, the antenna is bonded to the two sides of the entity formed by the supporting layer and the release liner, and is connected via overbridge points on the antenna, the overbridge points run through the supporting layer and the release liner so that antennas at the two sides are switched into conduction; the chip is bonded to the antenna. Once the RFID tag with diversion-proof function is peeled off or transferred, its physical structure will be destroyed and the information contained therein cannot be read, achieving the object of incapable of being reused. At the same time, the thermosetting resins are bonded organically according to the processing technology of the RFID tag, then the bonding points and the overbridge points of the chip have higher bonding fastness with the supporting layer, it is not easy for the chip to peel off with the release liner and better overbridge effect is achieved, which can greatly improve the yield of the finished RFID tag with diversion-proof function.

Radio frequency identification tag having diversion-proof function and manufacturing method thereof

The present invention relates to a sheet enabling to form dynamic three-dimensional images and a device for preparing thereof. The sheet comprises a base layer (), a transparent protective layer (), a reflective layer (), and pixel points () that can form images. The transparent protective layer () is disposed at one side of the base layer (), the pixel points () are embedded in the transparent protective layer (). The pixel points () consist of microlenses () tightly closed together. The reflective layer () is disposed downbently at a lower part of the microlenses (), wherein picture-text is recorded in the reflective layer (). There is an altitude difference H between horizontal positions of two adjacent pixel points (). Microlenses () in any one of pixel point have the same curvature radius, and curvature radius of microlenses () in two adjacent pixel points () have a difference of 1 to 70 &#x3bc;m.

Sheeting with dynamic three-dimensional images and manufacture device thereof

An anti-counterfeit film comprising an amphichroic pattern is prepared by (1) mixing a polymerizable liquid crystal material of chiral structure and a photoinitiator, blade-coating the mixture on a base film and then drying; (2) partially exposing the resulting material produced in step (1) using a positioned UV lamp, then drying and exposing in an UV radiation to obtain a desired film. The film prepared by the method has an amphichroic pattern which typically presents a red and green picture when being vertically observed, the original red and green respectively changes into green and blue when being observed at a certain incline angel. The anti-counterfeit film is characterized by obvious color change, easy identification, practicability and convenience, thus facilitating promotion and application.

Anti-counterfeit film with an amphichroic pattern and a preparation method thereof

Disclosed herein are an anti-counterfeiting film and process for preparation thereof. The anti-counterfeiting film comprises a directional retroreflective layer (), an optical-angle-based color-changing information layer (), a reflective layer () and a support layer () which are combined in this turn. The support layer () is made of a polymer resin material, the reflective layer () is made of a material with high reflectivity and has a thickness of nanoscale, the information layer () is made of an optical-angle-based color-changing chiral polymer material having a helical structure or made of an optical-angle-based color-changing cellulose material. The optical-angle-based color-changing chiral polymer material having a helical structure is a condensation product of a chiral compound and a compound with functional group. The optical-angle-based color-changing cellulose material is composed of a cellulose derivative and a polymerisable monomer. The directional retroreflective layer () is composed of spheres which are made of optical material, and is spherically embedded in the support layer (), wherein the refractive index of the material for the directional retroreflective layer () is 1.9-1.93.

Security film and process for preparation thereof

Disclosed herein are an anti-counterfeiting film and a process for preparation thereof. The anti-counterfeiting film comprises a protective layer (), a binder layer (), a retroreflective layer (), a photopolymerizable information layer () and a reflective layer () which are combined in turn. The retroreflective layer () is embedded spherically in the binder layer (), and the photopolymerizable information layer () has been recorded with graphics information which can change along with the viewing angle.

A sensitive liquid crystalline polymeric material suitable for the reflective hologram recording and the preparing method thereof are disclosed. The material includes a base film, a buffer layer coated on one side of the base film, a sensitive polymeric layer coated on the other side of the buffer layer and a protective layer coated on the surface of the sensitive polymeric layer.

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Shanghai, China

Liangheng Xu