Multi-layer structure PET beer bottle

Multilayer beer bottles used in contemporary contemporary types are generally 3-layered and 5-layered.
1、3-layer PET beer bottles
The PET/N/PET 3-layer beer bottle produced by CaRlSbERg AS, Copenhagen, Denmark, and Schmalbach-lubeca, Michigan, USA, weighs 25g and has a shelf life of 6 months. The aluminum crown cap with a PE pull ring provided by Japan's CRoWNCoRK company is also used. Both Denmark and the United States adopt recycling measures for the bottle.
In addition, the three-layer beer bottle PET/EVOH/PET developed and applied in recent years has a shelf life of only 12 weeks. However, it has basically been able to determine the safety and quality consumption requirements, and has also adopted the ANC improvement technology in recent years. To improve the quality of the bottle, the shelf life is extended to 14 to 16 weeks, and the goal it strives for in the future is 6 months shelf life. The bottle is currently sold in large quantities in small hotels, bars, and clubs.
The three-layer PET beer bottle with high oxygen shielding material used by MillER brewers in the United States has been tested to achieve full compliance with environmental requirements and can be recycled.
2, 5 layer structure PET beer bottle The 5 layer beer bottle is PET / shielding layer / PET / shielding layer / PET, the bottle is made of two kinds of plastic resin PET and shielding resin material, and the core layer PET is still Post-consumer recycled materials can be used. The bottle making process technology comes from PET International Technology Co., Ltd., which is called the patent of CPT technology. The bottle can withstand the pasteurization process temperature of beer without deformation, cracking, softening, physical strength parameters. Without change, the freshness of the beer filled by the bottle exceeds 4 months, which is basically similar to the shelf life of beer in glass bottles and metal cans.
By contrast, a 20-ounce, 1-liter 5-layer PET beer bottle is 43 grams larger than a glass bottle of the same volume, such as a 22-ounce 5-layer PET beer bottle, while a glass bottle of the same volume weighs 340 grams and a 1-liter 5-layer PET bottle weighs 56 grams. While the glass bottle weighs 392g, but because the cost is twice that of the glass bottle, it has not yet reached a large number of popularization.
The five-layer PET beer bottle, developed recently by Miller, USA, has a total of 16 ounces, 20 ounces, and 1 liter three bottle sizes. It has begun to be widely used in eight cities across the country.
The 5-layer PET beer bottle adopts the international PET bottle making technology and has passed the deoxygenation test, which fully meets the requirements of environmental protection. The bottle has a shelf life of 4 months and the brewer plans to recycle 40% of the spent 5-layer PET beer bottle.