What kind of shrink film is generally used for packaging boxes? Nowadays, many boxes need to be packaged to protect products, dustproof, moisture-proof, waterproof, and scratch-proof, so what material is the general box used for packaging, one-stop packaging for everyone to share, POF environmental protection It is hygienic and non-toxic, does not produce toxic odors during processing, conforms to US FDA and USDA standards, has high surface gloss, good toughness, high tear strength, uniform heat shrinkage, and is suitable for automatic high-speed packaging. It is traditional PVC heat shrinkable The replacement product of the membrane. PVC is not environmentally friendly but the price is cheaper than POF. PVC film has the characteristics of high transparency, good gloss, and high shrinkage. It can be used as a double pass and label film. Generally, the box does not need to be double-passed. If you need environmentally friendly materials, you can choose POF.
POF shrink film is widely used in food, cosmetics, gifts, medicines, stationery, toys, audio-visual products, electronics, wood products, plastic hardware, daily necessities and other industries’ outer packaging and collective packaging. POF shrink film can be used for semi-automatic or The automatic shrink packaging machine can also be used for various bag types. Square bags, special-shaped bags, cut corner bags, etc.
Generally, the best shrinkage temperature of POF shrink film with a thickness of 0.015mm (1.5 filaments) is about 150℃. The larger the thickness, the higher the shrinking temperature required, and the shrinking temperature required for the shrink film of 0.02mm (2 filaments) is higher. Higher, about 170°C. To achieve the best shrinkage effect, a little bit of experimentation is required in actual operation to gradually adjust the temperature to the best.