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Heat shrinkable film has good shrinkage and corresponding shrinkage stress

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The heat shrinkable film needs to have high puncture resistance, good shrinkage and corresponding shrinkage stress. During the shrinking process, the film cannot produce holes. Since shrink film is often used outdoors, it is necessary to add UV anti-ultraviolet agent. Including OPS/PE/PVC/POF/PET shrink film.


(1) POF has the characteristics of high surface gloss, good toughness, high tear resistance, uniform heat shrinkage and suitable for automatic high-speed packaging. It is a replacement product of traditional PVC heat shrinkable film. POF means heat shrinkable film. POF stands for multi-layer co-extruded polyolefin heat shrinkable film. It uses linear low-density polyethylene as the middle layer (LLDPE) and co-polypropylene (pp) as the inner and outer layers. It is plasticized and extruded out of the machine, and then processed by special processes such as die forming and film bubble inflation.


(2) OPS shrink film (oriented polystyrene) heat shrinkable film is a new type of packaging material with ops heat shrinkable film that meets environmental protection requirements. OPS heat shrinkable film has high strength, large rigidity, stable shape, and good Gloss and transparency. Convenient processing, easy coloring, good printing performance, and high printing resolution. For trademarks that are constantly pursuing fine printing, it is all an improvement in materials. Due to the high shrinkage and strength of OPS film, it can fit closely with various containers of different shapes, so it can not only print exquisite patterns, but also meet the use of various novel packaging containers with different shapes. A clean, odorless, grease-resistant film that meets food hygiene standards allows designers to use eye-catching colors to achieve a 360° label design, give full play to creativity and imagination, so that beverages and other products can be used in labels The pattern in the middle is more vivid, highlighting the image on the shelf, and creating an unexpected container effect.


(3) PE heat shrinkable film is widely used in the whole assembly packaging of wine, cans, mineral water, various beverages, cloth and other products. The product has good flexibility, impact resistance, tear resistance, and is not easy Damaged, not afraid of moisture, large shrinkage rate;


(4) PVC film has the characteristics of high transparency, good gloss and high shrinkage.


When the polyester heat shrinkable film is used as the outer label of the polyethylene terephthalate (PET) bottle, it can be recovered and recycled together with the bottle body, eliminating the need for the use of polyvinyl chloride (PVC) heat shrinkable film labels The required process of peeling the label film from the PET bottle body is convenient for recycling and will not pollute the environment. With the increasing wave of environmental protection at home and abroad, polyester heat shrinkable film, a novel high-performance environmentally friendly packaging material, will undoubtedly be more and more widely used. The characteristics of heat shrinkable polyester film: it is stable at room temperature, shrinks when heated (above the glass transition temperature), and heat shrinks more than 45% in one direction. The advantages of heat-shrinkable polyester film packaging are: ①The body is transparent and reflects the image of the product; ②The tightly packed packaging has good anti-spreading performance; ③It is rainproof, moisture-proof and mildewproof; Heat-shrinkable polyester film is often used in convenience foods, beverages, electronic appliances, and metal products, especially shrink labels are its main application areas. Because with the rapid development of PET beverage bottles, beverage bottles such as cola, sprite, and various juices require PET heat shrinkable film to be matched with heat seal labels. They belong to the polyester category and are environmentally friendly materials that are easy to recycle. use. In addition to being used as shrink labels, heat-shrinkable polyester films have also begun to be used for outer packaging of daily commodities in recent years. Because it can not only protect the packaged items from shock, rain, moisture, and rust, but also make the product win users with its beautifully printed outer packaging, and it can well show the good image of the manufacturer. At present, more and more packaging manufacturers use printed shrink films to replace traditional transparent films. Because the printed shrink film can improve the appearance of the product, it is conducive to the advertising of the product, and the trademark brand can have a deep impression in the hearts of consumers.