POF film is often used in the packaging of some solid foods and generally adopts a fully sealed packaging method. For example, we see that instant noodles and milk tea are all packaged with this material. The middle layer is made of linear low-density polyethylene (LLDPE), and the inner and outer layers are made of copolymerized polypropylene (pp). It is plasticized and extruded by three extruders and then processed by special processes such as mold forming and film bubble inflation.
The characteristics of PET heat-shrinkable polyester film: stable at room temperature, heat shrinkage (above the glass transition temperature), and one-way heat shrinkage of more than 70%. The advantages of heat-shrinkable polyester film packaging are: rainproof, moisture-proof, mildew-proof; non-recoverable, and has a certain anti-counterfeiting function. PET heat-shrinkable polyester film is often used in beverages, dairy products, convenience foods, some electronic appliances, and metal products, especially shrink labels are its most important application fields.
PVC film has the characteristics of high transparency, good gloss and high shrinkage;
OPS shrink film (oriented polystyrene) heat shrinkable film is a new type of ops heat shrinkable film packaging material that meets environmental protection requirements. OPS heat shrinkable film has the characteristics of high strength, high rigidity, stable shape, good gloss and transparency. Easy to process, easy to color, good printing performance, high printing resolution. It is a qualitative leap for trademarks that are constantly pursuing exquisite printing. Due to the high shrinkage rate and high strength of OPS film, it can be closely attached to containers of various shapes, so it can not only print exquisite patterns, but also meet the use of various novel packaging containers of different shapes. This non-toxic, odorless, grease-resistant film that meets hygienic food standards allows designers to achieve 360° label designs using eye-catching colors.
PE heat shrinkable film is widely used in combination packaging and cluster packaging of beer, beverages, bottled water, mineral water.
PE heat shrinkable film has good flexibility, strong impact resistance, strong tear resistance, not easy to break, high shrinkage rate, prevents product scratches, and is convenient for transportation; it is rainproof, moisture-proof, and mildew-proof; at the same time, it can be used on PE heat shrinkable film Carry out advertising, intimate and transparent, reflect the product image, and effectively promote product sales;
The application of PE heat shrinkable film in the liquid food industry, especially the beverage industry, is a change in market demand. Heat shrinkable film mainly replaces traditional carton packaging, carton + film bag, such as paper-supported film bag, cardboard film bag, pure film bag packaging is more and more widely used;
Because with the rapid development of PET beverage bottles, fruit juices and herbal tea beverages all use PET beverage bottles, and use PE heat shrinkable film for secondary packaging;
PE heat shrinkable film belongs to polyester and is an environmentally friendly material. degradation.
Post time: Jun-17-2023