Application of Plasma Processer in Plastic Bottles

• Categories:Technical Support
• Author:plasma cleaning machine-surface treatment equipment-CRF plasma machine-Sing Fung Intelligent Manufacturing
• Origin:
• Time of issue:2021-04-17
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(Summary description)Because the production cost of plastic materials is low and many advantages are integrated, it has also been favored by glass packaging material manufacturers to some extent. Then what are the application and treatment functions of plastic plasma processor in plastic bottles? Plastic bottles are made of polystyrene, styrene, poly (ethyl terephthalate) and other materials. General cans are made of PVC or PET, carbonated beverage bottles are made of PET, refreshing mineral water bottles, liquid food bottles, polyethylene, detergent bottles, cosmetics bottles, milk cartons, lactic acid beverage bottles are mostly made of polyethylene. The plastic bottle material selection is mainly PP and polyethylene. PP material has low density, heat resistance, no deformation, high surface compressive strength, no toxicity, no harm, good organic chemical stability, and is mostly used for wine, sodium carbonate plastic bottle cap packaging. Polyethylene material is non-toxic, has good elasticity and impact resistance, but also easy to coating, resistance to high moisture, indoor environment stress cracking performance is better, more used for hot filling bottle stopper, cold filling bottle stopper (such as vegetable oil bottle). In daily life, in order to avoid people eating expired food, harm human health. It is common to see the barcode text on the cork or above the bottle, such as the date of birth, shelf life and so on. Some drinks are printed with certificates, letters and QR codes on the bottle stopper or bottle body for marketing purposes (e.g., award message: one more bottle). But in fact, plastic bottle surface treatment, plastic surface energy is low, poor wetting ability, high crystallinity, strong non-polar molecular chain, there are poor boundary layer and other properties. For bar code, printing ink is not easy to stick, easy to scratch, easy to fade, and if it is a drink, into the refrigerator after scraping, its test results show that this makes the manufacturer embarrassed, its quality also let consumers hit a big question mark in the heart. The plastic plasma processor relies on electromagnetic energy to form kinetic energy of high voltage and high frequency. After the kinetic energy is activated and adjusted in the spray gun tube of the plastic plasma processor equipment, the low-temperature plasma is formed in the arc discharge and sprayed to the treated surface surface by air compression, so that the surface surface touched remains super-purified and cleaned. Surface activation (introduction of polar oxygen-containing functional groups such as hydroxyl and carboxyl groups). After correct processing, plastic plasma processing machine can make the bottle stopper and bottle body to achieve a very good bar code printing effect, enhance wear-resistant, not easy to fade again.