| Food packaging machinery industry is a shrink | | | | gradually reduced, while all kinds of PE, PP, PET, |
| packaging machinery where the largest market. | | | | PVDC, POF shrink film and other multi-layer |
| Heat-shrinkable films are widely used in a variety | | | | co-extruded rapidly to become the market |
| of snack foods, lactic acid type of food, | | | | mainstream. At present, the domestic |
| beverages, snack foods, beer, various wines, | | | | manufacturers shrink film plastic packaging alone |
| agricultural and sideline products, dried food, native | | | | Committee of China Packaging Federation, nearly |
| products such as packaging. Used for various PET | | | | 20, the output close to 8 million tons. Experts |
| bottles of beer, beverage labels, can reduce the | | | | predict that within the next five years, the |
| process to get rid of the label, to facilitate | | | | domestic film market will shrink more than 20% |
| recycling; for bottled beer, an alternative bundles | | | | growth rate. |
| belay packaging, bottle of beer to prevent the | | | | Shrink film packaging advantages: 1) pleasing in |
| injury caused by explosives. | | | | appearance, close to commodities, so called |
| Shrink film is a stretch in the production process | | | | body-packing, suitable for a variety of different |
| has been directed, and in the process by the use | | | | shapes of goods packaging; 2) the protection is |
| of heat shrinkable thermoplastic film. Heat | | | | good, if the shrink wrapped packaging inside the |
| shrinkable film of early 1936 was applied, initially | | | | packaging with hanging on the combination of |
| mainly used rubber film to shrink packaging of | | | | transport packaging, you can have a better good |
| perishable food. Today, the heat shrink technology | | | | protection; 3) cleaning is good, especially for |
| has been developed to almost plastic shrink film | | | | precision instruments, sophisticated electronic |
| to wrap a variety of merchandise. In addition, | | | | components packaging; 4) economic good; 5) |
| shrink-wrapping is also used to produce shrink | | | | anti-theft is good, a variety of foods can be |
| labels and shrink caps, so that is not easy to print | | | | shrink film with a big package together, to avoid |
| or complex shape of the container can be labeled. | | | | loss; 6) The stability of goods in the packaging |
| Recently, there have been newer applications | | | | film will not collapse; 7) Transparency is good, |
| have been developed. | | | | customers can directly see the product contents. |
| Production technology and characteristics of the | | | | In recent years, rapid development of heat |
| production of shrink film commonly used extrusion | | | | shrinkable packaging film, with the ever-changing |
| blow molding or extrusion cast method to | | | | market demands, heat shrinkable film being a |
| produce thick film, and then softening | | | | multi-level, functional direction, there have been |
| temperature above the melting temperature | | | | many new technologies and new products. |
| below the temperature of a high-elastic state | | | | Multi-layer co-extruded composite heat shrinkable |
| under the vertical and horizontal stretching, or just | | | | linear low density polyethylene film as intermediate |
| a direction in which stretch orientation, while the | | | | layer co-extruded polypropylene as the inner and |
| other direction does not stretch, the former called | | | | outer level, which is made by coextrusion, with |
| the biaxial stretch shrink film, shrink film which is | | | | the advantages of PE and PP is superior to a |
| called a one-way. When used in more than | | | | single layer of PE or PP film, is now widely used |
| stretching temperature, stretching temperature or | | | | internationally heat shrinkable packaging material. |
| close to the contractile force to be reliable and | | | | Single-layer heat shrinkable film is widely available |
| packaged goods bandage to live. | | | | in a fast food pasta, multi-layer heat shrinkable |
| Shrink film materials used mainly for a variety of | | | | film in fresh meat, fatty food packaging has also |
| thermoplastic films. PVC heat shrinkable film initially | | | | been widely used. Therefore, the heat shrinkable |
| dominated, with the continuous development of | | | | packaging film development trends in the food |
| market demand, PVC heat shrinkable film | | | | industry is getting better. |