Bar code, also known as bar code (BAR CODE), is one of the logos commonly printed on goods. The bar code is a set of black and white parallel stripes with regular arrangement, with the number attached below, it includes a variety of information about the goods, available Special equipment reading, and ECR (electronic cash registers), computer compatibility to achieve the automatic sales of goods.
2. Technical introduction of barcode
Bar code is a kind of graphic symbol that uses photoelectric scanning reading equipment to read and realize data input into a computer. Bar code technology is an automatic identification technology developed with the application of computer, it is to study how to use bar code to identify information, and will The information identified by the bar code is converted into a language that can be recognized by the computer, thereby realizing automatic identification of data, automatic statistics, and automatic input of a high technology.
In general, bar code technology includes symbolic technology, identification technology, and application system design.
The technology of symbols is the encoding principle of various types of barcodes and the design and production of barcode symbols. The identification technology is scanning and decoding of barcode symbols. A barcode system consists of barcode identification, reading equipment, computers and communication interfaces. The bar code application system design refers to the configuration of various parts of the system, such as identifying the information identified by the bar code, the format, size, color of the selection code system and design identification, and the selection of reading devices. The bar code system often serves as a computer application system. "Data source", the design of the bar code system should also consider the operation of the entire application system.
3, the design of the barcode's logo
The bar code is identified by the optical reading of its symbol, so the design and production of the bar code symbol must ensure that the finished product label has sufficient optical contrast and barcode size accuracy. The barcode symbol is not limited to black and white, but can be freely selected for color matching. In addition to printing, the production method can be mechanically processed to form a concave-convex surface.
The design of bar code identification includes logo design, symbol size design, bar code color design and so on.
There are three forms of product barcode identification: direct printing on the label paper or packaging container of the product, labeling and hanging on the commodity; directly printing or spraying on the outer packaging of the commodity, shipping box, barcode identification on the commodity The printing position can be determined by referring to a specific standard, generally selected on the lower left side of the main display surface, or the corresponding position on the back and sides. The bar code on the outer package of the product is preferably in the front right lower corner, and the bar code label must have a the above.
Barcode symbol size design is to determine its magnification M. The general product barcode EAN Standard Edition has a calibration size of 37.29X26.26mm and a shortened version of 26.73X21.64mm. For specific applications, M can be between 0.9-1.2. The larger the M, the greater the allowable printing error and the less printing difficulty. The larger the occupied printing area, the larger the size of the bar code markings must be in consideration of the design of the goods, the printing area, and the printing conditions. For products with small packaging, you can apply for shortened version of EAN-8 code.