Understand the packaging materials of heat shrinkable film

The products of PE heat shrinkable film manufacturers are excellent film packaging materials, and the products packaged with excellent transparency are convenient for customers to choose products. Close to the shape of the product, it is suitable for packaging of various forms of products with a wide range of packaging contents. Anti-theft and dust-proof; a variety of products can be packed in thermally shortened packaging bags to prevent the loss of a single small product and facilitate customers to carry. Choosing different resins and formulas can produce environmentally friendly short films with different mechanical strengths and functions. They can be used for internal packaging with low strength and low product weight. They can also be used for container machinery and construction materials that require high strength. Transport Packaging. In the production process, the heat shrinkable film is stretched in a high temperature environment and then sensitively cooled to achieve the purpose of shaping. It heats up again during use, but the cost-saving posture is uneven, the degree of shortening and the plan are also different. The production of heat shrinkable film firstly adopts extrusion blow molding or extrusion flexible method to produce thick film, and then it is fully flexible at the melting temperature, and then stretched horizontally and vertically. However, when the film shrinks instantaneously, it is limited by the container. The shape of the container must be considered so that the horizontal and vertical incomplete shrinkage can be restored correctly, and the correct size and deformation rate can be calculated according to the actual situation. For heat-shrinkable labels that need to change the sheet-like film into a barrel and use an adhesive to seal the overlapping parts together, please be careful not to design graphics and text on the sealing part, so as not to affect the adhesion firmness. Next: The temperature performance of heat shrinkable filmPrevious: Understand the production process of protective film