悦龙薄膜南海·东莞

佛山市南海区悦龙薄膜有限公司

东莞市悦龙薄膜有限公司

In the 21st century, with the rapid development of plastic films, there are more and more applications of PVC heat shrinkable films, including agricultural greenhouses, as well as product packaging, etc. The main reason for their wide application is that they have the following advantages:

① Wrapping and packaging the goods stacked on the pallet to make the packaging more stable and tidy, with a stronger waterproof effect;

② It has the characteristics of high tensile strength, high elongation, good self-adhesion, and high transparency;

③ Shrinkage film, heat shrinkable film is mainly made by mixing and extruding several different grades of polyolefin resin, with puncture resistance, super strength and high performance;

④ The technology of heat shrinkable film contact mainly refers to some main steps in the production of heat shrinkable film blowing, such as extrusion, molding, cooling, traction, and winding. The multi-layer planar overlay head mentioned in this article has a large heat absorption area and good plasticizing effect due to the doubling of the number of extrusion layers, which naturally increases the output. With the improvement of cooling technology, the output can be increased by 50%.

PVC heat shrinkable film has some shortcomings. For example, some PVC heat shrinkable films are very soft when used in summer and harden in winter; Some heat shrinkable films easily absorb dust and become opaque; Some PVC heat shrinkable films also have a short service life, are prone to aging, cannot withstand wind, frost, and sun exposure, and their surfaces are prone to cracking. "There are no drawbacks, but now the application of PVC heat shrinkable films is still very widespread. I believe that with the increasingly mature technology of heat shrinkable films, heat shrinkable films will be applied in more fields".