What material is heat-sealing film made of?

Heat-sealing film is a plastic film used for heat sealing. It is one of the basic varieties of BOPP film and is mainly used for printing, composite bag making or wrapping packaging. You may still not understand it very well, so what material is heat-sealing film made of? Let me introduce it to you today.

1. Heat-sealing film is divided into single-sided heat-sealing film and double-sided heat-sealing film. Single-sided heat-sealing film, after printing patterns on the non-heat-sealing layer, is composited with PE, BOPP and aluminum foil to make bags for food, tea, beverages and other packaging. Double-sided heat-sealing film is directly heat-sealed to form packaging food, textiles, audio-visual products, poker, etc. These all require the film to have good heat-sealing properties.

2. Heat-sealing film products have excellent heat-sealing strength, ink and coating adhesion, oxygen resistance, grease resistance, high transparency and gloss, and excellent smoothness and opening performance. Products with thicknesses of 15, 18, 25, 27, and 30 microns are more representative.

3. High-quality products are well used in independent packaging of small products after partial printing. In addition, vertical and horizontal packaging and composite bag making are also places where the products are widely used. The performance of the product determines that the heat-sealing film can be trusted by everyone in various places.

4. Polyethylene and its acrylic copolymer have good low-temperature resistance, while homopolymer polypropylene has poor cold resistance. Propylene and ethylene can be copolymerized together to improve the cold resistance of propylene homopolymer. With the increase of ethylene monomer dosage, the cold resistance of copolymer polypropylene can be improved.