PE heat shrinkable film is widely used in the overall packaging of wine, cans, mineral water, various beverages, fabrics and other products. The product has good flexibility, strong impact resistance and tear resistance, is not easy to be damaged, is moisture-proof and has large shrinkage.
PVC heat shrinkable film has the characteristics of high transparency, good luster, high shrinkage, fragility and easy damage after heat shrinkage.
POF heat-shrinkable film has the characteristics of high surface gloss, good toughness, high tear strength and uniform heat shrinkage, which is suitable for automatic high-speed packaging. It is the replacement product of traditional PVC heat shrinkable film.
Extended data
Comparison of physical properties of POF, PE and PVC shrink films;
The specific gravity of the cost POF is 0.92, the thinnest thickness is 0.0 12mm, and the actual unit cost is low; The specific gravity of PE is 0.92, the thinnest thickness is above 0.03, and the actual unit cost is higher. The specific gravity of PVC is 1.4, the thinnest thickness is 0.02mm, and the actual unit cost is relatively high.
Physical POF is thin and tough, with uniform thickness, good moisture resistance, soft texture, high tensile strength, high tear strength and adjustable shrinkage. Because of the existence of LLDPE, it has better friction resistance, and PE is thick and tough, with uniform thickness, good moisture resistance and soft texture.
The tear strength is lower than POF, but much higher than PVC, and the shrinkage is poor. Friction resistance is not as good as POF. PVC is thick and brittle, uneven in thickness, poor in moisture resistance, hard and brittle in texture, low in strength, low in shrinkage and poor in friction resistance.
References:
Baidu encyclopedia-heat shrinkable film
References:
Baidu encyclopedia -POF heat shrinkable film