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HYF Film is a Professional Plastic & Heat Shrinkable Film Manufacturer Since 2005.

How to display the barcode of heat shrinkable film label?

How to display the barcode of heat shrinkable film label? Release time: 2018-03-30    Because heat shrinkable film is a kind of thermoplastic film that is stretched and oriented during the production process, and shrinks by heat during use. Therefore, no matter which printing method is used for printing, before the design of the surface pattern, the horizontal and vertical shrinkage of the material, as well as the allowable deformation error in each direction of the decorative graphic after shrinking, can be taken into account to ensure that the pattern, Accurate restoration of text and barcode. Here, the author focuses on the placement of barcodes.  Three precautions  Usually, the placement direction of the barcode must be consistent with the printing direction, otherwise the lines of the barcode will be distorted, which will affect the scanning result and cause misreading.   In addition, the color selection of label products should be based on spot colors as much as possible, and the production of white version is necessary, and it can be made into full or hollow according to the actual situation.   The color of the bar code must follow the general requirements, that is, the color matching of the bar and the space must comply with the bar code color matching principle.  Printing material selection  The printing of heat-shrinkable labels has been briefly analyzed above. In addition to controlling the quality of the printing process, the material plays a decisive role. Therefore, choosing the right material is the key.   Determine the thickness of the film material according to the application field, cost, film characteristics, shrinkage performance, printing process and labeling process requirements of the heat shrinkable label. It is generally required that the film thickness of the shrink film label should be 30 microns-70 microns, with 50 microns, 45 microns, and 40 microns more commonly used, depending on the labeling performance of the labeling equipment.   For the selected label material, the shrinkage rate of the film material is generally required to be within the application range, and the transverse direction (TD) shrinkage rate is higher than the longitudinal direction (MD) shrinkage rate. The transverse shrinkage rate of commonly used materials is 50%~52% and 60%~62%, and can reach 90% under special circumstances. The longitudinal shrinkage rate is required to be 6% to 8%.   In addition, since the shrink film is very sensitive to heat, high temperatures must be avoided during storage, printing and transportation. Previous: The packaging industry has undergone dramatic changes, and the future of shrink film packaging machines can be expected

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