Digital holographic bar code and preparation method thereof

• Main Authors: GONG SHOUFENG, SONG QINGTAO, XU LIXUAN, SONG LITAO, WANG LIJIANG, TIAN CHENQI
• Format: Patent
• Language: Chinese; English
• Published: 18.09.2013
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention relates to the technical field of digital code and material anti-counterfeiting, in particular to a preparation method of a digital holographic bar code. The preparation method includes: printing a variable bar code on a base material, uniformly coating an adhesive layer on laser holographic paper which is attached with a holographic film, and finally subjecting the base material printed with the variable bar code and the laser holographic paper coated with the adhesive layer to heat transfer operation on a stripping machine. According to the preparation method, normal paper and the normal holographic paper are adopted to produce variable digital holographic bar code anti-counterfeiting marks, the defects about oneness of existing gold stamped bar codes, incapability of printing scannable bar codes on the holographic paper and the like are overcome, anti-counterfeiting difficulty is increased by means of laser holographic transferring, a florid effect of the holographic paper can be combined wit