Bar code is a graphic identifier that arranges a number of black bars and blanks with different widths according to certain coding rules to represent a group of information. Common bar codes are parallel lines composed of black bars (referred to as bars) and white bars (referred to as spaces) with great differences in reflectivity.

Barcode can indicate the country of production, manufacturer, commodity name, production date, book classification number, starting and ending place, category and mailing date, and so on, so it has been widely used in many fields such as commodity circulation, book management, postal management, banking system and so on.

development prospect

With the rapid expansion and development of retail and consumer markets, it also promotes the growth of barcode label business in China. Because more and more places need to use labels and bar codes. In fact, as early as the 1970s, bar codes have been widely used in the global retail industry. Nowadays, barcode, automatic identification system and data acquisition technology still play a vital role in the global scope.