[Packaging materials] Classification of heat shrinkable film

In our daily life, packaging materials can be seen everywhere, among which heat shrinkable films are widely used in various industries. The author will introduce the classification of heat shrinkable films for you. 1) PE heat shrinkable film is widely used in the whole assembly packaging of wine, cans, mineral water, various beverages, cloth and other products. The product has good flexibility, impact resistance, strong tear resistance, and is not easy to break. Not afraid of moisture, large shrinkage rate; 2) PVC film has the characteristics of high transparency, good gloss, high shrinkage rate, etc.; 3) POF surface gloss, good toughness, high tear strength, uniform heat shrinkage and suitable for automatic high-speed packaging Other features are the replacement products of traditional PVC heat shrinkable film. POF means heat shrinkable film. POF stands for multi-layer co-extruded polyolefin heat shrinkable film. It uses linear low-density polyethylene as the middle layer (LLDPE) and co-polypropylene (pp) as the inner and outer layers. It is plasticized and extruded out of the machine, and then processed by special processes such as die forming and bubble inflation. 4) OPS shrink film (oriented polystyrene) heat shrinkable film is a new type of packaging material with ops heat shrinkable film that meets environmental protection requirements. OPS heat shrinkable film has high strength, high rigidity, stable shape, and good gloss Degree and transparency. Convenient processing, easy coloring, good printing performance, and extremely high printing resolution. For trademarks that are constantly pursuing fine printing, it is completely an improvement in materials. Due to the high shrinkage and strength of OPS film, it can fit closely with various containers of different shapes, so it can not only print exquisite patterns, but also meet the use of various novel packaging containers with different shapes. A non-toxic, odorless, grease-resistant film that meets food hygiene standards allows designers to use eye-catching colors to achieve a 360° label design, give full play to creativity and imagination, so that beverages and other products can be labeled The patterns in use are more vivid, highlight the image on the shelf, and produce an unexpected container effect. 5) The characteristics of PET heat-shrinkable polyester film: it is stable at room temperature, shrinks when heated (above the glass transition temperature), and heat shrinks more than 70% in one direction. The advantages of heat-shrinkable polyester film packaging are: ①The skin is transparent and reflects the image of the product. ②Tightly tighten the packaging, good anti-scattering. ③Prevent rain, moisture, and mildew. ④ No recovery, with a certain anti-counterfeiting function. Heat-shrinkable polyester film is often used in convenience food, beverage markets, electronic appliances, and metal products, especially shrink labels are its very main application areas. Because with the rapid development of PET beverage bottles, beverage bottles such as cola, sprite, and various juices require PET heat shrinkable film to be matched with heat seal labels. They belong to the polyester category and are environmentally friendly materials that are easy to recycle. use. The above is the classification of packaging materials-heat shrinkable film collected by Wuhan Plastic Packaging Co., Ltd. Our company specializes in the production and processing of PVC heat shrinkable film, PE heat shrinkable film, POF heat shrinkable film, PET heat shrinkable film, PE stretch film, etc. Products, such as PVC heat shrinkable film, PE heat shrinkable film, POF heat shrinkable film, PET heat shrinkable film, PE stretch film and other product requirements, please call to discuss. Previous: Quality identification method of heat shrinkable film Next: Announcement on the resumption of work in the epidemic