The perfect combination of heat shrinkable film and vegetables

The shrinking method of heat-shrinkable film In the past, we often use many items, all of which are inseparable from the packaging of heat-shrinkable film. It is widely used, but for people who have just contacted, they don’t know which shrinking method is better. The following manufacturers of heat-shrinkable film, heat-shrinkable bag, and POF heat-shrinkable film will explain several commonly used packaging methods for heat-shrinkable film. The first thing to tell us is to use the boiling water shrinkage method, this method is the same as the principle of the steam heat shrinking machine, and the shrinking product packaging is more beautiful. The shrinking method is to use a hair dryer, which is heated by the hair dryer to achieve the shrinking effect, which is more convenient and quick to operate. The shrinkage of the blower is also suitable for the packaging of products of different shapes, which can save the process of using the shrinking machine to heat up, but this shrinking method is suitable for the packaging of some small quantities of products, and the packaging of large quantities of products may not be able to receive. After all, a shrinking method is to use a heat shrinking machine, which is more suitable for shrinking products produced in large quantities in the factory, and the scope of application is also wide. Materials such as POF heat shrinkable film, heat shrinkable film and PE heat shrinkable film can all be heat shrinked. machine. In practice, heat shrinkable films often include stabilizers, lubricants, auxiliary processing agents, pigments, impact resistance agents and other additives. It has non-flammability, high strength, weather resistance and excellent geometric stability. PVC has strong resistance to oxidants, reducing agents and strong acids. The use of qualified PVC material chairs will not harm the body. If there is a strong and bad smell, please use it with caution. Generally, plastic products will have a little smell, which will disappear or decrease after a certain period of normal use. The main hazard of PVC is that it does not directly harm consumers during the production process and the discarding and recovery process. The heat shrinkable film is easy to meet the requirements of different strengths and packaging functions due to its excellent transparency and simple modification. It has excellent electrical insulation function and excellent flame retardant and self-extinguishing properties. It is widely used in the production of heat shrinkable film, used for printing standard dry, shrink sleeve of wire and cable joint, and shrink packaging. The heat-shrinkable film has high strength and large elastic tensile force. It can wrap tightly on products of any geometric shape, and can prevent damage to the product caused by strapping. It has excellent anti-loosening, rain-proof, dust-proof, anti-theft and other effects; high availability Functional resins and auxiliary materials can meet the needs of different users in a wide range; single-sided viscous products can be manufactured to reduce the noise announced during the coiling and stretching process, and reduce the dust and sand in the process of transportation and storage. (1) The maintenance effect of heat shrinkable film on the transportation of vegetables. We all know that vegetables are easy to rot during transportation. Now that we see that vegetables are so intact and undamaged, it is our heat shrinkable film product packaging that has a good maintenance effect. . The respiratory intensity of broccoli is relatively high, and the post-harvest physiological and metabolic activities are very vigorous. In a short time, it will lose water and turn yellow, which will affect the product value of the vegetable itself. Therefore, it is necessary to pre-cool the vegetables in time after harvest, quickly remove the field heat, reduce the broccoli center temperature and breathing intensity, and then achieve the purpose of slowing the promotion of vegetables and extending the freshness period. At present, the pre-cooling link of domestic vegetable production areas is thin and lack of professional pre-cooling equipment; refrigerated transportation is rarely used in the transportation process. Most retail links such as farmers' markets and supermarkets are sold at room temperature without packaging. The equipment for selling fruits and vegetables is basically general shelves and general shelves. Humidification spray equipment (RH: 80%～90%) and refrigerated display cabinet (2～10℃). The rate of vegetable circulation in my country is 25%-30%. This is the current status of vegetable circulation in my country.