Excellent heat sealability of stretch film

Stretch film is often used in life. Stretch film is used in every occupation. The most prominent is the packaging industry. Originally, as long as we understand the nature and characteristics of stretch film, the quality of stretch film will be very different in the future. Briefly. Molding processability: Molding is convenient, it can be processed without adding plasticizers, and it can be processed by various molding methods such as extrusion, injection molding, blow molding, and vacuum, and the operation is simple. Cleaning and safety: Stretch film is a kind of non-toxic material, monomer ethylene itself has low toxicity, and the residual amount in plastic products is minimal, and the increase in participation is small. It is usually considered as a safe packaging material. Permeability: good water and humidity resistance, but poor gas and organic vapor resistance. High and low temperature resistance: It has excellent low temperature resistance and can be used to the needs of food refrigeration and freezing. However, due to its low melting point, it has poor high temperature resistance and cannot be cooked with food. Heat sealability: The heat seal function of stretch film is much better than other materials of the same type. High transparency is conducive to the identification of shrink film; high longitudinal elongation is conducive to pre-stretching, and saves data consumption; outstanding puncture function and transverse tear strength allow the stretch film to encounter sharp goods under high stretching magnification The corners will not crack, so it is recommended that you choose a stretch film with high transparency when purchasing equipment. The heat shrinkable film is made of ethylene PVC resin mixed with more than a dozen auxiliary materials and then inflated twice. It is characterized by good transparency, easy shrinkage, high strength, shrinkage rate can be adjusted freely according to user needs, and strong operability. The shrink film has good transparency. The shrinkage rate is high, between 40% and 60%, and its cost is low. The tensile strength is large, the temperature shrinkage range is large, and the heat source is not high. The main processing heat energy is air. Infrared or a combination of both. Since it is the darling of the packaging industry, what are the benefits of shrink film for product packaging? 1. The shrink film has good abrasion resistance and high strength, ensuring that it can accept the weight of the contents. 2. The shrink film has high transparency, so the label has bright color and good gloss. 3. Shrink packaging can pack special-shaped products that are difficult to pack by ordinary methods. 4. After the shrink film shrinks, it is close to the product, the packaging is compact and can show the appearance of the product, and the packaged product is beautiful. 5. The heat-shrinkable film packaging has good sealing, moisture-proof, anti-fouling and anti-rust effects, which can extend the food storage area for storage and open-air storage. 6. The shrink film can provide a 360-degree decoration to the packaging container, and can print product information and other product information on the label, so that consumers can understand the performance of the product without opening the packaging bag.