Pvc heat shrinkable film has high flexibility
When the polymer is heated and melted in a high elastic state, the polymer chain is stretched and oriented under the action of an external force, and after the idle cooling reaches the glass transition temperature, the orientation state of the polymer chain is frozen. When the temperature rises again, the polymer chain tends to be in a stable state, curling occurs, and macroscopically appears as shrinkage. From the principle of shrinkage, there is no chemical change, so it is called "physical reduction." Blow molding to obtain PVC heat shrinkable film is obtained by using the above principle and rapidly cooling after two inflations. PVC heat shrinkable film is a popular new packaging material, which has good transparency, good toughness, impact resistance, corrosion resistance and low water vapor transmission. There is also an ideal shrinkage rate. When the film is subjected to a certain temperature, it shrinks automatically and tightly wraps the goods, thereby protecting the goods, and also functions as moisture proof, mildew proof, rust proof, pollution prevention, injury prevention and anti-theft function. Commodity storage stability, packaging process and equipment are relatively simple, easy to achieve automatic shrink packaging. PVC heat shrinkable film is used in the sale and transportation of various products, and its main function is to stabilize, cover and protect the product. The shrink film must have high puncture resistance, good shrinkage and specific shrinkage stress. The film does not create holes during shrinkage. Since the pvc heat shrinkable film is often used outdoors, it is necessary to add a UV anti-UV agent.
Pvc heat shrinkable film has high flexibility, is not easy to break, strong against bursting force, strong impact resistance, strong tear resistance and strong pulling force, which can replace box packaging. PVC shrink film, with added ingredients to enhance its heat resistance, toughness, ductility and so on. The upper layer of the surface film is lacquer, the main component in the middle is polyvinyl chloride, and the lower layer is a back-coated adhesive. It is a well-loved, popular and widely used synthetic material in the world today. Among the materials that can produce three-dimensional surface films, PVC is a more suitable material.
The shape of the container is different from the shrinkage rate of the data. For example, an approximately cylindrical container with a low shrinkage requirement may consider the use of OPP or PVC data, while a container with more curves or streamlined plans may consider an OPS film with high shrinkage and strength. OPS film can be closely matched with containers of different shapes, not only can print delicate pictures, but also can meet the needs of various novel packaging containers with disparate shapes. OPS is non-toxic and tasteless, resistant to grease, and meets food hygiene standards. It allows planners to choose a color that is visible to all, to achieve 360° label planning, and to fully exert creativity and imagination, thus making label drawings more vivid and prominent. The image on the shelf, the unexpected container effect. For example, the new curved glass bottle of the domestic blue-belt beer uses a high shrinkage OPS substrate and is labeled with a solvent-based adhesive.
PVC heat shrinkable film is used in the sale and transportation of various products, and its main function is to stabilize, cover and protect the product. The shrink film must have high puncture resistance, good shrinkage and specific shrinkage stress. The film does not create holes during shrinkage. Since the shrink film is often used outdoors, it is necessary to add a UV anti-UV agent. The heat shrinkable film is made of small heat shrink packaging equipment according to the standard. It has the characteristics of simple operation, wide application range, good sealing, high transparency, low cost and high grade. It is suitable for the packaging of small and medium batch products. The heat shrinkable film machine and the sleeve labeling machine are used together to form a sleeve shrinking machine line, which is widely used in the fully enclosed heat shrinkable packaging of medicines, foods, drinks, stationery, ceramics, daily chemicals, auto parts, needle spinning, electronic audio and video products. It is a sleeve shrinking machine for the downstream packaging line.
Pvc heat shrinkable film has high flexibility, is not easy to break, strong against bursting force, strong impact resistance, strong tear resistance and strong pulling force, which can replace box packaging. PVC shrink film, with added ingredients to enhance its heat resistance, toughness, ductility and so on. The upper layer of the surface film is lacquer, the main component in the middle is polyvinyl chloride, and the lower layer is a back-coated adhesive. It is a well-loved, popular and widely used synthetic material in the world today. Among the materials that can produce three-dimensional surface films, PVC is a more suitable material.
The shape of the container is different from the shrinkage rate of the data. For example, an approximately cylindrical container with a low shrinkage requirement may consider the use of OPP or PVC data, while a container with more curves or streamlined plans may consider an OPS film with high shrinkage and strength. OPS film can be closely matched with containers of different shapes, not only can print delicate pictures, but also can meet the needs of various novel packaging containers with disparate shapes. OPS is non-toxic and tasteless, resistant to grease, and meets food hygiene standards. It allows planners to choose a color that is visible to all, to achieve 360° label planning, and to fully exert creativity and imagination, thus making label drawings more vivid and prominent. The image on the shelf, the unexpected container effect. For example, the new curved glass bottle of the domestic blue-belt beer uses a high shrinkage OPS substrate and is labeled with a solvent-based adhesive.
PVC heat shrinkable film is used in the sale and transportation of various products, and its main function is to stabilize, cover and protect the product. The shrink film must have high puncture resistance, good shrinkage and specific shrinkage stress. The film does not create holes during shrinkage. Since the shrink film is often used outdoors, it is necessary to add a UV anti-UV agent. The heat shrinkable film is made of small heat shrink packaging equipment according to the standard. It has the characteristics of simple operation, wide application range, good sealing, high transparency, low cost and high grade. It is suitable for the packaging of small and medium batch products. The heat shrinkable film machine and the sleeve labeling machine are used together to form a sleeve shrinking machine line, which is widely used in the fully enclosed heat shrinkable packaging of medicines, foods, drinks, stationery, ceramics, daily chemicals, auto parts, needle spinning, electronic audio and video products. It is a sleeve shrinking machine for the downstream packaging line.