Characteristics And Applications Of Plastic Film

Plastic film, a relatively new printing material, has become a light, transparent, moisture-proof, anti-oxidation and airtight packaging choice after printing. Its toughness, folding resistance and smooth surface provide all-round protection for the goods, while also perfectly reproducing the shape and color of the goods. With the rapid development of the petrochemical industry, the types of plastic films are becoming increasingly rich, including polyethylene (PE), polyvinyl chloride (PVC), polystyrene, polyester film (PET), polypropylene (PP) and nylon. ► Material characteristics Plastic film has become a packaging choice due to its excellent characteristics such as moisture resistance, anti-oxidation and airtightness. It includes PE, PVC, PET and other types, each with its own characteristics such as high insulation of polyethylene and high strength of nylon. ► Application Examples However, the performance of each plastic film is different, so the difficulty of printing and its applicability as a packaging material will also be different. For example, although polyethylene film is non-toxic and has good insulation properties, it is relatively difficult to print due to its strong inertness. In contrast, polyvinyl chloride film has good light resistance and aging resistance, as well as excellent tear resistance, making it very suitable for packaging bags and book covers. In addition, the soft and tough characteristics of polystyrene film, as well as its advantages such as resistance to freezing and resistance to acid, alkali and oil esters, enable it to obtain better fastness when printed. Polyester film has become an ideal choice for packaging and composite materials due to its colorless transparency, moisture resistance, airtightness and high strength. Polypropylene film has excellent gloss and transparency, as well as excellent heat resistance and friction resistance, but its heat sealing performance is slightly insufficient. It is worth mentioning that nylon film is often used for load-bearing and wear-resistant packaging and steaming packaging due to its excellent strength, oil and ester resistance, and non-toxic and odorless characteristics. Its direct printing without surface treatment saves the processing steps before printing.