Development and application of 01 Standard POF shrink film

01 Standard POF shrink film is a tough, high degree of transparency bi-directional contraction of heat shrinkable film, in the packaging process of contraction Xiaolu stable, balanced, including the completion of the rear corner soft, toughness, resistance to low temperature will not send hard, effective protection of packaged goods, in the process does not produce harmful gases, and can adapt to the requirements of most automatic and semi automatic machinery, is a kind of economic material benefit type products. Thermal shrinkage of thin films was applied in early 1936, the first major use of rubber film to shrink the packaging of perishable food. Today, heat shrink technology has been developed to almost can use plastic shrink film to pack a variety of goods. In addition, shrink packaging is also used to produce shrink labels and shrink caps, making it difficult to print or shape complex containers that can be labeled with labels. Recently, there have been constantly updated application areas were developed. Production technology and characteristics: shrink film production is usually used extrusion molding or extrusion casting method to produce thick film, and then in the softening temperature above and below the melting temperature of a high elastic state temperature of longitudinal and transverse tensile, or only in one direction tensile set to, and another direction without stretching. The former is biaxial tensile shrinkage film, while the latter is one-way shrinkable film. When in use, the packing product is wrapped in a reliable shrinking force when the temperature is larger than the drawing temperature or close to the drawing temperature.