Barrier layer of the hottest container wall

2022-09-23
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The barrier layer of the container wall

plastic containers play an important role in beverage packaging, and they are more likely to replace glass and metal containers in recent years. However, plastic containers are not without shortcomings. The most important problem to be solved is barrier performance. Now, a double injection molding method can place the barrier layer in the middle of the container wall and prevent peeling

beer, fruit juice and hot canned tea drinks are all sensitive to oxygen. Now there are many kinds of barrier materials available in the market. Instead of reducing the penetration of oxygen, they absorb oxygen to prevent it from contacting the beverage, so that the container has the performance similar to glass. For carbonated beverage bottles with small volume, because the ratio of the beverage (volume surface area) actually in contact with the side wall of the bottle to the volume is large, the loss of carbon dioxide will increase, thus affecting the taste of the beverage. Compared with small containers (355 ml and 390 ml), the ratio of large volume containers (1.5 liters and 2.0 liters) is much less important

the resin industry has also responded to this. On the one hand, they produce special materials for a certain requirement, on the other hand, they also produce materials that are generally needed. For example, a variety of passive barrier materials can be used in small volume carbonated beverages. For beer, even if the civil aircraft explodes, it will not disappear. The materials combined with carbon dioxide barrier and oxygen repellent can be used; Fresh fruit juice and tea only need materials that only contain oxygen repellents available on the market

co injection molding technology, as a process for producing pet multilayer containers, can increase the barrier of bottles

however, a phenomenon called "layering" has affected the further application of this technology. Kortec Asia Ltd has developed the "multi-layer" technology, which can provide a simple two-material, three-layer processing method. This pet co injection device enables the bottle processing plant to add a layer of impermeable barrier material between the bottle blank walls, thereby reducing the layering of finished product containers. In terms of efficacy, it reduces the penetration of carbon dioxide and oxygen through the blow molding bottle wall, making it reach an acceptable level in various beverage markets, such as beer, fresh fruit juice, hot filled tea (mainly in the Japanese market), and even small volume carbonated soft drinks

now, Pepsi Cola, Anheuser Busch and other companies have adopted Cotai's co injection molding method in business. Some high-end customers of the company can even provide the only pasteurized PET beer bottles in the world, further meeting the needs of the beer market. In the beer market, more than 80% of beer is pasteurized in (60 ± 30) s from the beginning of loading, such as ball Corporation in the United States, crown cork seal company, and Zhuhai Zhongfu group in China. Another major bottle processing plant in China has also begun to use Gaotai's equipment. Both Chinese companies can produce such containers for the beer market and strive to meet the demand. There are nearly 90billion beer containers in the Chinese market. This huge number is enough to drive anyone to become a pioneer in this industry

Gaotai's equipment is simple to use, and the operator can control the barrier amount under the best distribution condition, so that the container can obtain the ideal storage life required by the beverage supplier, and a single system can produce containers suitable for all markets, bringing greater flexibility to the processing plant

in addition, the technology developed by Gaotai can be operated on a variety of cavities (from 4 cavity laboratory system to 96 cavity production system) and a variety of platforms (from 90 tons to 600 tons). Each platform can work with the fastest single-layer pet cycle time at present, further increasing the economic utility of devices such as kortec's increasing production of HG300 tonne, 48 cavity system

in addition, quality assurance is also a priority for operators today, which is the first fully automated production line of high-capacity lithium-ion power batteries in Jiangxi Province. Considering the need of customers to make containers with accurate barrier materials, Gaotai invented a multi-layer bottle blank detection system, referred to as MPIS. This system uses mature ultrasonic technology, based on which users can accurately calculate the quantity of barrier materials and the storage life of products sold to each beverage company or food company

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