Barcode card with a set of rules of arrangement, barcode empty records and their corresponding characters of information, common bar code symbol is an empty black bars and white printing from magnetic stripe cards processing, when light shines on the bar code symbol, black bars and produce a strong contrast of white space to take advantage of different light reflectivity empty to reading information. Barcode card into a two-dimensional code and two-dimensional code. More commonly used one-dimensional code, such as bar code on the packaging of daily commodities is one-dimensional code. It's a small amount of information stored in the magnetic stripe card printing, can only store a code, when you use this code data retrieval via a computer network. Two-dimensional code is developed in recent years in the production of magnetic stripe cards, which can store more information in a limited space, including text, images, fingerprints, signatures, etc., and from the computer to use. Barcode card making simple, common barcode printing or copying certain requirements to lower costs, but it is a two-dimensional code reading device for reading particular device) is more expensive. With magnetic cards and IC card is different, barcode card information can not be rewritten, in addition, poor safety performance standards are not uniform magnetic stripe cards, which limits its application. Such cards are widely used in shopping malls membership cards, membership cards supermarkets, stores membership cards, membership cards, etc. hotel, more extensive. Membership card production process color deviation problem, which is often the customer care and asked questions, for some prone to bias, Orient million card card membership card experts made the following explanation: a dark card scratches; Dark cards such as black, brown card these cards in play yards, transit will have scratches and it seems quite obvious; buyers can choose to do matte card to avoid these problems; 2 Gold Silver: Gold Silver's needs Customers purchase must keep customer instructions, gold and yellow price is completely different, the production process is not the same; avoid refined white card effect 3 large difference: a card to see whether the use of new materials production, production can be very white card. easy to see that back feed entrained gray color card printing out, the new material produced is white; 4 cards cast dark: dark make-printed cards are especially difficult to control, generally less than 10 percent color deviation, dark card may 15 about%; magnetic stripe card | Magnetic stripe card processing | first-class production process provided by the Eastern million cards. This information consists of: providing Beijing Orient million Smart Card Technology Co., Ltd. (www.dfykzk.com), we are business alliance member, the integrity of the whole network authentication provider. Feel free to contact us, Contact: Tang Jingli