Why does movie ticket roll printing need a black label?

Movie ticket paper is used as a voucher for entering the theater to watch movies, as well as a voucher for movie fans to take pictures and share on WeChat Moments. In the normal operation of the cinema, why is there a black square mark on the back of the movie ticket paper? What is the function of the black mark? What is its purpose?

Shenzhen Juxin Printing, as a professional printing factory for movie ticket paper, currently provides movie ticket rolls for more than 30% of the cinemas in China. During the printing process, all movie ticket papers need to be printed with a black mark on the back. The black mark is mainly used to identify and sense the thermal printer, give the thermal printer a signal, and accurately cut the size of each ticket. Do you understand the role of the black mark?

So why can't the movie ticket paper printed by many non-professional printing factories be used? Or can it be used occasionally, but not sometimes? The black label is identified by photoelectric sensing during use, so the light reflectivity is an important factor for printer identification. The light reflectivity of the black label is very important, that is, the blackness of the black label is very important. According to the printing specifications, conventional ink printing will have insufficient melanin. For products with high quality requirements, UV black is required for printing, that is, dark black can reach a stable standard.

Did you get this little bit of knowledge?

Shenzhen Juxin Printing/Marketing Department/Mr. Dai

August 12, 2021