Single-layer PET beer bottle development is concerned

After a huge consumption of beer, it is a huge container market, and now there are more than 270 billion beer containers consumed globally each year. With the increase in the consumption of the market, consumers are increasingly demanding quality products and convenient packaging. PET bottles are gradually entering beer because of their advantages of light weight, transparency, shatterproofness, easy molding, and resealability. Packaging area.

Beer is highly sensitive to the environment and therefore requires high barrier properties for packaging materials. To improve barrier properties, barrier layers are usually added in the walls of multilayer bottles; PE T bottles are improved in barrier properties by blending or using additives; SiOx plasma coatings are used. But no matter which method is used, the biggest challenge is how to obtain the best barrier property at the lowest cost. The multi-layer PET bottles produced by the method mentioned above have good barrier properties, but the production process is complicated and the cost is relatively high, which becomes a bottleneck for large-scale promotion and application.

Recently, single-layer PET bottles that improve barrier properties by blending or using additives are gaining attention. For example, TNVISTA recently developed a PolyShield resin with good gas barrier properties, which has made breakthroughs in the production technology of PET beer bottles. The technology that originally used multi-layer composite to make beer bottles will be replaced. Monolayer production can be.

It is reported that PolyShied is a new type of PET/nylon blended resin with oxygen absorption and gas barrier properties. The single-layer PET beer bottle produced by it has recently been approved by the European Union for beer packaging food safety and can be used directly. In beer packaging. INVISTA's Legal Advisory Committee stated in the letter of approval that all the monomers and additives used in the manufacture of PolyShied resin belong to the ''safe substances'' in the EU food safety guidelines, and its applicability and safety fully meet the EU's overall standards. And special standards.

PolyShied single-layer PET beer bottles can significantly improve the barrier properties to oxygen and carbon dioxide gas and meet all beer shelf life standards. For example, the beer bottle of SOOmL can provide a shelf life of 120 days, and can achieve a total oxygen intake of less than 1 X 10-6 within one year. The loss of carbon dioxide in the four months is less than 15%. At the same time, due to the use of a phase-solvent technology, the particles of the sheet-shaped barrier material are made smaller, so that the processed beer bottle has the transparency of a traditional glass beer bottle, and has two colors of green and one color. The biggest good news for plastic bottle manufacturers is that PolyShied single-layer PET beer bottles can produce preforms on standard injection molding machines without increasing the complexity of the production process and requiring additional investment and staff training to enter people. The huge beer bottle market has greatly reduced product costs.

For brewers, the PolyShied single-layer PET bottle can withstand a pasteurization process of 30 minutes at 65°C. The process is no different from the use of glass beer bottles, and the plastic bottle greatly reduces transportation costs and transport operations. Safe and easy to implement, and can achieve different packaging styles (such as large bottle packaging). Retailers can also benefit from the transport safety and shelf appeal of PET beer bottles. For the consumer, safety and lightness are equally important, and the use of PET bottles to achieve large household packaging is also very welcome. It is reported that the single-layer PET beer bottle production technology has already begun trials in several beer production plants around the world.