Liaoning produces ops heat shrinkable film label manufacturers to analyze the supply quotation in detail

Liaoning ops heat shrinkable film label manufacturers analyze the supply quotation in detail. Release time: 2020-02-26 Liaoning ops heat shrinkable film label manufacturers analyze the supply quotation in detail. Wuhan Packaging Materials Co., Ltd. is a professional processing ops shrink film label, heat shrinkable Film label companies, the company has accumulated many years of experience, and is still constantly learning new technologies to improve products. With the rapid development of food, cosmetics and medicine industries, the demand for plastic composite packaging products is increasing, and plastic composite packaging products are increasing. The quality requirements of packaging products are getting higher and higher. Packaging users not only pay attention to the beauty and logistics performance of the packaged products, but also pay attention to the heat-sealing strength of the packaged products. Because the heat sealing strength of packaged products directly affects the packaging speed, transportation and sales. In actual production, each manufacturer regards the heat-sealing strength as an important quality index to control whether it is bag-making products or coil products used in automatic packaging production lines. To prepare for its natural contraction. According to Coating Online, at present, the storage period of the film promised by the supplier is 6 months from the date of production, and the storage period promised by the supplier is 3 months from the date of delivery. The palm fastness is unstable, and the physical and chemical indicators such as tensile strength decrease; it will cause the film to become brittle and unable to print at high speed, and the shrinkage rate is reduced or unstable. Therefore, the heat sealing pressure is required to be moderate and uniform during the heat sealing process. If the heat sealing pressure is not enough or uneven, air bubbles will be generated in the heat-sealed part and false welding will result in poor heat sealing. When the change in the process of shrinking when exposed to heat, it is fully in line with the heating pattern during the use of the trademark, and will not have a major impact on the container and the filled beverage. The following combined with the actual production experience will affect the heat sealing of the heat shrinkable film. The factors of strength make a simple analysis. Heat sealing temperature Heat sealing temperature directly affects the heat sealing strength of plastic composite packaging products. Heat-sealing time The heat-sealing time of the automatic packaging machine or the old bag making machine is determined by the machine speed. When the heat-sealing temperature and heat-sealing pressure remain unchanged, the longer the heat-sealing time, the stronger the bond between the heat-sealing layers. However, if the heat-sealing time is too long, the heat-sealed parts of the composite film will be wrinkled and uneven, which will seriously affect the appearance quality of the product. Heat sealing pressure For the heat sealing strength of plastic composite flexible packaging, a certain heat sealing pressure is essential. Previous: Jilin ops heat shrinkable film label manufacturers are currently selling price concessions