Bottle Development
Apr 10, 2019
The process of manufacturing barrier plastic bottles using coating technology has been on the decline, with krones AG of Germany and Tetra Pak, Illinois, starting to cut production. Krones has developed BestPET technology with Coca-Cola to coat the outer surface of the bottle with silicon oxide.
A spokesman for the company said the technology was outdated because of high costs and inadequate oxygen barrier slots, and Tetra Pak has discontinued research on the Glaskin silica plasma coating system used in the inner wall of PET bottles. In addition, the Italian company SIPA for PEN bottle sdeveloped a new type of barrier coating material, its product namesmart Coat, its process is: blow molding processing to get the bottle, after the coating process, and then immediately put into the infrared oven to make the bottle quickly, and then after a second coating, However, the bottle is cured under ultraviolet radiation, a standard coating device can handle about 12,000 plastic bottles per hour.
One of the application targets of this PET bottle is to fill carbonated beverages, according to the company, 0.5 liter capacity, a single-use PET bottle, packaging goods shelf life of up to one year, while the shelf life of uncoated PET bottles is only 7 weeks. The UK's Innovative Plastics Technology Corporation (AFT) has developed a patented water-based flow coating process that can coat the outer surface of a special barrier thermoplastic resin billet, which, after the coating process, cures the resin to blow the billet secondary lying on standard processing equipment. APT claims that the use of this coating process is 3-4 times better than the uncoated PET bottle, and Husky is in talks with APT to transfer technology to obtain a license to manufacture the coating equipment, which is designed to process 30,000 pallets per hour. APT director Robert E. Lee said.
The technology has been purchased by a leading beverage manufacturer for the processing of non-alcoholic beverage packaging bottles. The Institute of Plastic Processing (IKV) of the University of Aachen in Germany has transferred pecVD, the plasma coating technology for the inner wall of plastic bottles, to Seidler, and IKV has also developed a plastic bottle outer wall coating technology, using a 20-150nm barrier coating, similar to the inner wall coating process. Can improve the PET bottle 4 times the CO barrier performance, its technology production system device processing cycle of 15 seconds, production regardless of 10,000 bottles / sales case, the researchers set the development goal: processing cycle reduced to 10 seconds, the application of more powerful vacuum pumps, and other improved detection devices.
