How to improve the bar code reading

The quality of barcode printed matter affects the sales just like the quality of the commodity itself. The qualified barcode symbol is the necessary guarantee for the automatic management of POS system. We have seen that the relevant departments implement the bar code logo printing qualification recognition system for printing enterprises, and test the trial printing and formal printing of the samples and products, to ensure the quality of the bar code printing, if possible, should use the bar code detector to detect the bar code, at least ensure that the bar code is above grade B.

Usually there are the following situations need to be noted, pay attention to the following links in the problem, you can fully improve the bar code reading:

1. Incorrect appearance design of commodities is common in drinks, especially polyester bottled drinks, whose appearance is convex and concave. Bar code symbols are usually printed on plastic labels. In this case, we should ensure that the part of the label is smooth when designing the shape of the bottle.

2. For some bagged goods, the bar code symbol is printed close to the edge of the bag. Although it is qualified after printing, deformation and wrinkle occur after loading the contents, and the bar code still cannot be read correctly. The correct method is to avoid joints and deformation parts when designing the bar code position. It is best to load the contents in the bag first, observe the flat part, and then print the bar code symbol in this position.

3. Some packaged goods, the bar code symbol is qualified when the packing box is laid flat, but when the carton is folded, it covers a part of the bar code symbol, or the left and right blank area is insufficient. This should be fully considered in the design of the barcode location.

4, in order to pursue the upgrading of goods on the file, a large part of the commodity set on the heat shrink film, but also caused by the bar code unqualified situation. After heat shrinkage film, the corner of the commodity can not shrink flat, forming a wrinkle, in this position of the bar code symbol can not be read correctly.

5, some goods, especially children's goods, put marks between the heat shrink film and goods, small toys, etc., in order to attract customers, common is bubble gum put three-dimensional crystal glue, often the barcode symbol part or even all cover, resulting in unreadable.

6. The bar code is not qualified because of other contents labeled on the commodity. It is common for food labeling production date, production batch number, shelf life and other contents to be incorrectly labeled on the bar code symbol. The food in boxes is marked with pad printing ink and manual printing machine. The bar code position on some boxes is designed on the other side corresponding to the marked date position. After pad printing ink is printed, it takes a period of time to dry, fast drying oil ink needs 2~5 seconds, and slow drying oil ink needs more than 5 seconds. When you put the box after marking the date, the dry ink will pollute the bar code symbol on another box, pile up how much pollution, the formation of stains, can not read correctly, which should be paid attention to in the design of the bar code position.

7. Special commodity frozen food, such as ice cream, after being refrigerated, its surface is frozen with a thin layer of ice block due to low temperature, which completely or partially covers the bar code symbol, causing it to be unable to read correctly. This kind of goods is seasonal, short - term, should be used in - store code.

In short, in order to ensure the literacy of bar codes, it is necessary to control not only the printing process of bar codes, but also the use process of bar codes. Only by paying attention to the whole process of printing bar codes until the commodities carrying bar codes are sold through POS system, can the literacy of bar codes be effectively promoted.