Electronic passport anti-counterfeiting thread

Abstract

The invention discloses an electronic passport anti-counterfeiting thread. The electronic passport anti-counterfeiting thread is prepared by fully mixing ultraviolet fluorescent powder, infrared excitation light powder and nylon fibers according to the mass ratio of (1-3): (3-5): (16-25) through the steps of master batch preparation, melt spinning, single-strand fiber twisting, thread weaving and oiling. According to the technical scheme, the anti-counterfeiting effect of the passport is improved, the production loss is small in the production process, the strength of the anti-counterfeiting thread is improved, the anti-counterfeiting thread is not prone to breakage, and meanwhile the anti-counterfeiting thread is smooth through the oiling step and not prone to knotting and breakage on a machine table.

Description

[0001] The invention relates to the technical field of textiles, in particular to an electronic passport anti-counterfeiting thread. Background technique [0002] At present, there are two types of anti-counterfeiting threads for various documents in the prior art: one is a colorless ultraviolet fluorescent anti-counterfeiting thread, which is added with ultraviolet phosphors and then twisted during the production process; there is also a colorless infrared fluorescent anti-counterfeiting thread, which is produced In the process, infrared excitation powder is added and then twisted. Both are monochrome anti-counterfeiting threads with only twisting and no weaving, which only produce specific monochromatic light under a special light source. Because the anti-counterfeiting effect of monochrome anti-counterfeiting threads is simple and easy to imitate, it leads to the possibility of forging documents, which cannot meet the requirements The market currently needs anti-counterfeit...

AI Technical Summary

Problems solved by technology

Both are monochrome anti-counterfeiting threads with only twisting and no weaving, which only produce specific monochromatic light under a special light source. Because the anti-counterfeiting effect of monochrome anti-counterfeiting threads is simple and easy to imitate, it leads to the possibility of forging documents, which cannot meet the requirements The current market needs for anti-counterfeiting thread anti-counterfeiting

[0003] Moreover, the domestic monochrome fluorescent wire has such phenomena as large production loss, short retention time of fluorescent characteristics, poor breaking strength, roughness, easy knotting and breaking on the machine, etc., and its physical and chemical resistance does not fully meet the requirements stipulated by icao

Images