In the modern packaging industry, shrink film has become an indispensable part. It not only provides high-quality protection for products, but also gives new life to packaging through its unique shrinkage properties. Today, we will take an in-depth exploration of this new star in materials science-shrink film.
Shrink film, also known as heat or tight wrap film, is a thermoplastic film that is stretched and oriented during the production process and shrinks due to heat during use. Its greatest characteristic is that after being subjected to a certain amount of heat treatment, it can shrink evenly along the original stretching direction, so as to adhere closely to the surface of the packaged object.
Types and characteristics of shrink film
PVC shrink film: PVC (polyvinyl chloride) shrink film has good transparency and gloss, good processing performance, and high shrinkage rate. It is widely used in packaging in food, pharmaceuticals, cosmetics and other industries.
POF shrink film: POF (multi-layer co-extruded shrink film) is a shrink film material that has developed rapidly in recent years. It has the characteristics of high shrinkage rate, good transparency, tear resistance, and puncture resistance. It is especially suitable for irregularly shaped items. Package.
PET shrink film: PET (polyethylene terephthalate) shrink film has excellent mechanical properties, heat resistance and chemical resistance, and is suitable for packaging of high-end products such as electronic products and medical equipment.
Application areas of shrink film
Food packaging: Shrink film can effectively protect food and extend its shelf life. At the same time, its transparent nature allows consumers to clearly see the appearance of food and increase their desire to buy.
Daily necessities packaging: Shrink film can provide compact and beautiful packaging for various daily necessities, such as cosmetics, toys, stationery, etc.
Industrial product packaging: For electronic products, medical equipment and other items that require special protection, shrink film can provide an additional layer of protection to ensure the safety of the product during transportation and storage.
With the continuous advancement of science and technology, the materials and processes of shrink film are also constantly updated. In the future, we can look forward to the emergence of more environmentally friendly and degradable shrink film materials, as well as the development of more intelligent and efficient shrink film packaging technology. At the same time, with the rise of e-commerce, the demand for shrink film packaging will continue to grow, providing a broad market space for the development of the shrink film industry.
As a material with unique properties and wide application prospects, shrink film has become an important part of the modern packaging industry. Through continuous technological innovation and market expansion, we have reason to believe that shrink film will play a more important role in the future and bring more convenience and beauty to human life.
