Heat shrinkable film packaging shrinks easily

Heat shrinkable film has good economy, low cost, simple packaging shrinkage, transparency, cleanliness, protection, moisture retention, and stability. Almost all of these advantages are available. These are the primary factors that users must consider before using. Of course, everything has its other side, but it also has its shortcomings. It is softer when used in summer, and it becomes brittle and harder in winter, and it is easy to tear. After all, the flaws do not conceal the good, it has many advantages, it is the temptation that cannot be resisted. With the continuous advancement of industrial technology, I believe that for a long period of time, pvc heat shrinkable film will still be rejuvenated and the market prospect will remain broad. The heat-shrinkable film is made of ethylene PVC resin mixed with more than a dozen auxiliary materials and then inflated twice. Its characteristics are good transparency, high strength, easy shrinkage, shrinkage rate can be adjusted freely according to user needs, and strong operability. The heat shrinkable film has high puncture resistance and good shrinkage, so the heat shrinkable film is mainly used in the sales and transportation process of various products to stabilize, cover and protect the product. Today, the heat shrinkable film manufacturer will introduce the use of heat shrinkable film to everyone, let's learn it together. Heat-shrinkable film is widely used in the whole assembly packaging of cans, mineral water, various beverages, cloth and other products. The external components of the heat-shrinkable film are used to enhance its heat resistance, toughness, ductility, etc. The heat-shrinkable film is also particularly suitable for the packaging of large-size or irregular objects, which solves the problem of packaging objects of opposite sex, and the heat-shrinkable film greatly reduces the packaging cost. Now the heat shrinkable film produced by the heat shrinkable film manufacturer is a very popular and widely used material. POF is actually a vinyl polymer, and its material is a non-crystalline material. In actual use, PVC materials often add stabilizers, lubricants, auxiliary processing agents, pigments, impact agents and other additives. With Non-flammability, high strength, weather resistance and excellent geometric stability. PVC has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid And it is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons. In order to improve the melt processability of PVC and the melt processability of PVC formulations, processing aids should be added to PVC formulations. Practice has proved that for rigid PVC products, it cannot be melt-molded without processing aids, and for soft PVC products without or lacking processing aids, it is also difficult to form. The processing aids for PVC are mainly acrylic resin (ACR) which has good compatibility with PVC film, as well as chlorinated polyethylene (CPE), chlorosulfonated polyethylene, methyl styrene polymer, MBS, ABS, etc. Note: The processing aid should not be added too much. If it exceeds 12PHR, it may not be extruded due to low melt viscosity and low friction. Generally, the amount of processing aid is 5-8PHR.