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Heat shrinkable label film is a widely used packaging material, which has the advantages of firm packaging, transparent and beautiful appearance, strong adhesion, etc. When heat shrinkable film is a polymer material, some molecular chains are oriented in the stretching direction when it is stretched under a specific high temperature environment during processing.
Heat shrink label film is a widely used packaging material, with the advantages of firm packaging, transparent and beautiful appearance, strong adhesion, etc. When the heat shrink film is a polymer material, it is stretched under a specific high temperature environment during processing. Some molecular segments are oriented in the stretching direction, and the disordered curled molecular segments are arranged in order. When the temperature drops rapidly, the directional structure and internal stress of the molecular segments are frozen, and the heat shrink film product is fixed at this temperature.
Scanning the code to win the prize is a promotional activity of many beverage manufacturers. The U-shaped easy-tear line laser marking machine can beautify the process of buyers tearing the film to scan the code. Without this U-shaped tear line, the entire packaging film can be easily torn off the bottle, which will make the buyer feel inconvenient in the process of continuing to carry it. From the consumer's point of view, the U-shaped tear line is very necessary.
Due to the continuous expansion of laser application fields and the continuous improvement of laser application in the film packaging industry, laser processing has become a new technical standard in the PE, PVC, and PET film processing industries. Guangzhou Laisai Laser is a domestic enterprise that proposes laser to replace mechanical processing technology in the film packaging industry. It is designed for easy-to-tear films and quantitative ventilation holes, with fast marking speed, simple equipment operation, stable performance, and long life. Guangzhou Laisai laser equipment is a high-tech product that integrates laser technology, optical technology, precision machinery, electronic technology, computer software technology, refrigeration and other disciplines. Compared with traditional mechanical gear punching, it has a faster speed, the size of the aperture can be adjusted more evenly, and can achieve any direction, shape, and multiple easy-to-tear marks.
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