Push Group Launches High Barrier PET Beer Bottle

The PolyShield beer bottle developed jointly by Push Group and Invista USA has high gas barrier and high oxygen removal capabilities. PolyShield resin is blended with high barrier nylon MXD6. Its breakthrough technology consists of high barrier to oxygen and carbon dioxide gas, preventing the loss of CO2 in the bottle, preventing oxygen from infiltrating, and removing oxygen that penetrates into the bottle body and cap. Oxygen can be removed by blocking in the bottle. It is a single-layer beer bottle technology that can be used to produce preforms using ordinary injection molding machines. It does not require additional investment and does not increase the complexity of the production process. The cost of the product is greatly reduced.

PolyShield resin is mixed with high-barrier single-layer PET beer bottles produced by MXD6 (nylon), and obtained EU food packaging certification for alcohol content of less than 10% for pasteurized beer and draft beer filling. The shelf life is up to More than 6 months; at the same time, it has also obtained the European Union's packaging certification for non-fat foods, with a shelf life of more than 12 months. Coloured bottles have extraordinary transparency.

two. PET beer bottle technology development status

Ordinary PET beer bottles have appeared in Japan in the 1980s. They were mainly used for small parties at that time, but due to oxygen barrier problems, they were eliminated within 4 or 5 years after being listed. In the late 1990s, various new materials with barrier properties, improved heat resistance, PET multi-layer composite technology with barrier layers, PET surface coating technology, PET co-hybridization technology, and development of high barrier properties MXD6, PEN Other materials have been developed by leaps and bounds, physical and chemical properties such as high-temperature pasteurization test, oxygen barrier, sealing performance, vertical pressure and filling pressure basically meet the needs of beer packaging.

PET beer bottle barrier technology classification:

1) PET beer single-layer bottle. The latest technological breakthrough in the single-layer structure is the newly developed PolyShield Polyester resin with excellent gas barrier properties developed by Invista USA. The single-layer PET beer bottles produced using this new type of polyester resin can meet the EU beer packaging food safety standards.
2) PET multi-layer composite with barrier layer and active barrier technology. Multi-layer composite technology is a mature technology in plastics processing technology. Usually 3 or 5 layers, the inner and outer layers are PET, the middle barrier layer is ethylene-vinyl alcohol copolymer (EVOH), nylon nanocomposites (or amorphous nylon and nano-adhesive soil (MXD6). Such as the United States Eastman The company's PET/PA/PET and Japan's Mitsubishi Gas Chemical Company's PET/MXD6l/PET.The advantage of this technology is that the technology is mature, the middle layer after the selection of high barrier material performance greatly improved.
In terms of barrier technology, Nanocor Corporation and Mitsubishi Gas Chemical Corporation of Japan have developed a new nylon MXD6 nanocomposite (M9), which has improved oxygen barrier and carbon dioxide loss resistance by 50% and 70%, respectively, compared to MXD6. Same as peeling resistance. The three-layer beer bottle of PET/M9/PET developed with it can meet the requirements for beer shelf life in the United States (110 days) and Europe (180 days). Moreover, the thickness of the M9 layer is thinner than that of the MXD6 layer, so the cost can be reduced.
3) Miller of the United States developed a PET beer bottle with 5-layer structure (PET/shield/PET/shield/PET) with two layers of plastic resin, namely PET and shielding resin material, and core PET. Post-consumer recycled materials can be used. The bottle adopts CPT's patented technology. The bottle will not be deformed, cracked and softened after pasteurization treatment. The physical properties and strength are stable. The beer shelf life exceeds 4 months, and it is basically the shelf life of beer with glass bottles and metal cans. the same.
4) The United States has developed a hard carbon film-coated PET beer container. The raw material of PET bottle body is hydrocarbon. The film composition contains 60%-90% of amorphous carbon, 10%-40% of hydrogen, film thickness. 200-400A, its barrier capacity increased more than 10 times, flexible material flexibility, the film will not break when stretched. Hard carbon film can absorb micro odor and fragrance, chemical stability, acid and alkali resistance, high temperature (300 °C), high transparency, safe use, in line with the United States FDA safety standards.
5) Australia develops surface-sprayed epoxy-amine iced beer PET bottles with beer shelf life of up to 100-120 days under non-refrigerated conditions, and PET (90%)/EVOH (10%) beer bottles are also developed. Up to 25-40 weeks.
6) Nissei ASB Machinery Co., Ltd. of Japan developed the application technology of hard carbon coating (DIC), Sidel of France developed the technology of amorphous carbon treatment on the surface of Actill, Glassin process and Sealica process of Tetrapak company, Tetra Pak. The company developed a new SiOx coating technology that coats the inner surface of PET beer bottles with 20 nanometers. The goal is to target oxygen sensitive food packaging markets such as ketchup, jams and beer bottles.
7) Plasma coating technology from Sidel, France. Plasma (ACTIS) technology sends gaseous acetylene into a PET bottle under vacuum conditions. The acetylene is intensified by a microwave processor and converted into a plasma state. The plasma particles suddenly impinge on the wall and the energy suddenly disappears, forming a wall. A very thin and dense layer of solid, highly oxidized, amorphous carbon coating, less than 20 nm in thickness. A 500 m1 PET bottle coating is said to weigh only 8-9 milligrams, only three-ten thousandths of the mass of the bottle, but has Excellent barrier properties. Comparing with the performance of pure PET bottles in holding beer for 6 months, the resistance of the technology to oxygen is increased 30 times, the loss rate of carbon dioxide resistance is increased 7 times, and the moisture flow through weight is reduced by 2/3-1/2. The weight of acetaldehyde was reduced by 5/6; the aroma mobility was also significantly reduced.
8) DLC vapor deposition technology of Nissei ASB. The key to this technology is the successful application of a highly effective impervious PET beer bottle coating device developed by Nissei Japan, Mitsubishi Shoji and Youtec, a plasma CVD component manufacturer. The implementation of steam deposition technology in this equipment can significantly increase the gas barrier properties of PET beer bottles.
9) The United States developed vacuum plasma enhanced chemical vapor deposition (DPC) technology to deposit DLC on the inner surface of PET plastic bottles, which has a barrier effect between beer and bottles, and improved PET gas barrier properties by 5-10 times. The PET bottle coated with DLC film has a small odor and has a low adsorption to beer aroma and can be recycled and refilled.
10) Japan Mitsui Chemicals Co., Ltd. Industrial scale production of hybrid BA-030 copolyester, used in 5-layer beer bottles, PET outer layer / BA-030/02 oxygen removal layer / UV barrier layer / PET inner layer. The performance of BA-030 combined with PET is better than or equal to PEN.
11) Italian Sipa company develops disposable PET beer bottle production line, from PET pellets to bottle production line. PET bottles have very low oxygen content. Immediate coating and coloring on the outside of the newly produced bottle, on-line filling and pressing The cover can prevent the bottle wall from adsorbing oxygen, release it into the product, and the bottle can achieve super cleanliness, and also can save the bottle placement site, sterilization and other processes. And the bottle color and coating can be recycled after being removed, and the bottle can be recoated for use. With the quality of the bottled beer, the cost is reduced.
12) The French company Xidaner develops high-hydrogen non-crystalline carbon-coated PET beer bottles, whose oxygen barrier resistance is increased by 10 times, CO2 resistance is increased by 7 times, and the product shelf life is up to one year. All of them can be recycled and used by the FDA. Approved for use, has been applied in France, Britain, Italy and other countries.
13) The PET beer bottle introduced by TERTRAPA of Sweden is blown with a 500ml Grassrin unique technology with a glass-like silica layer on the inside. The inside of the silicon oxide coating is transparent and has excellent barrier properties, which can prolong the beer preservation period.
14) Schmalbach-lubeca, Michigan, USA produces PET/N/PET 3-layer beer bottles. The bottle caps are Japanese Crown Cork's Aluminium Crowns with PE pull rings. The lid weight is only 25g, which can maintain beer shelf life of 6 months. .
15) The German development of low-cost, cost-effective surface-coated SiO2 PET beer bottles are transparent and glossy and can be recycled 100% for beer filling. The shelf life is more than 6 months.
16) U.S. PPG successfully developed a gas barrier coating technology for PET bottles that can be removed when used bottles are recycled. The coating consists of a two-component epoxy-amine, which has toughness and moisture resistance. The thickness of the 0.5 liter PET bottle coating is 4-19 microns, and the barrier to oxygen can be increased by 2-12 times. The use of the coating not only does not affect the transparency of the bottle but also improves the gloss of the PET bottle.

Third, China PET beer bottle development status

China has a huge beer market: In 2004, China's beer production reached 29,105 million kiloliters, an increase of 15.23% over the same period of last year, and continued to maintain its status as the "world's largest beer production and sales country." Ranked among the top 10 brands in sales, Budweiser, Yanjing, and Qingdao accounted for approximately 67.05% of the national beer market share. According to related data, China's average annual beer consumption level is 22 liters, while the world level is 27 liters, and the per capita annual consumption level in developed countries is even around 150 liters, so the beer market has great potential.

Domestic PET beer bottle production specifications are 380ml/1000ml/1600ml. Domestic beer brands such as Yanjing (Lianwei, Laizhou, Shandong) and Blue Ribbon beer are used in small amounts. Achieved good performance in specific sales channels Product weight: 380ml is generally 34 grams, 1000ml is 56 grams, 1600ml is about 60-70 grams.

Miller, a large US beer company, Kirin Beer, Denmark, Carlsberg, Denmark, and Heinken, the Netherlands, currently maintain a small level of use of PET beer bottles. The world beer brewing giant Anheuser-Busch also has around 3% of its beer packaged in PET beer bottles. PET packaging beer has a better sale in sports venues and concert halls where the price of beverages is not too sensitive.

PET bottles in South Korea account for 40% of the beer market. The Korean beer market has grown rapidly in recent years, with HITE and OB being the two largest brewers in Korea.
In Russia, about 17% of beer is packaged in PET. The Russian brewery does not need to consider high-cost, high-barrier bottles because beer is quickly consumed after bottling. Standard PET bottles have a competitive advantage over glass bottles in terms of price.

In Russia, about 17% of beer is packaged in PET. The Russian brewery does not need to consider high-cost, high-barrier bottles because beer is quickly consumed after bottling. Standard PET bottles have a competitive advantage over glass bottles in terms of price.

Source: Window of Plastic Products