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PET bottle has wide applications in the beverage, dairy, pharmaceutical, chemical, etc. This is primarily found in the development of its developing performance barrier. A better barrier, research and control of the PET bottle preform barrier property is a must. Currently, the following four techniques are often used to improve the barrier properties of PET bottles of barrier property of PET preforms. 1. PET preforms barrier property Solution: Multi-layer multi-layer process is also defined as a method of injection complex. PET Inject media, and then inject the barrier material around the hot core of the form to the central barrier. This method requires high skill of the operator and strict quality control. 2. PET preforms barrier property solution: a mixture of raw material barrier to entry directly into PET raw materials, which is favorable for the process of bottle preform made with the standard routine materials. This method does not require any other treatment measures, and requires little operator. But the barrier material is mixed to the transparency of PET bottles and the result of the haze would be reduced. 3. PET preforms barrier property solution: The coating is applied on plasma coating of the inner and outer molded bottle preform, this treatment is usually quite complicated. 4. PET preforms barrier property Solution: Multi-casting, this method is based on the interior fittings, cast iron and makes multi-layer period equal treatment. Multi-casting process is quite complicated because it requires that each layer is very thin, can be deflected but in the actual application of the mold core by the pressure differences and do not even thickness. In addition, since the end of the first year of the cast, should the preform bottle in another room other casting to be sent. This process is achieved by the rotation and could easily peel layers. This problem has been solved by some companies, if the molding chamber evolution moves more lines of the nuclei in parallel to replace rotation and prevents peeling layer. The above mentioned developments and applications on the performance of the PET bottle preform and barrier technologies have paved the way for the achievement of various performance solutions paved barrier. high barrier performance is closely tied to performance testing barrier. When testing the performance barrier packaging PET preforms and PET bottles is oxygen transmission rate measuring device is a useful tool. Labthink introduced Labthink permeable OX2/230 Oxygen transmission rate test system for PET bottles and PET bottle preform trials barrier property. Oxygen permeability (OTR) is the most common for testing the barrier properties of PET bottles and preforms for PET bottles. ASTM F1307, GB / T 19 789 and other test procedures are the same pressure. Isolate the transfer chamber with the sample pre-packaged into a system with two separate gas flows form: the flow of test gas from the bottle or PET bottle preform (test gas can pure oxygen or a gas mixture with oxygen) exercise high-purity gas flows into the bottle or bottle preform. Although both sides of the same pressure, the oxygen partial pressure are different. Because of differences in the oxygen concentration, oxygen passes through the package, and is to probe the exact amount of oxygen before the gas would flow to calculate the speed of transmission of increased oxygen. Labthink permeable OX2/230 Oxygen Transmission Rate test system may provide tests of oxygen at depth, the barrier properties of PET bottles and preforms for PET bottles. In addition, this instrument can be mastered-SAT, a new pre-master satellite modules, can thus be run 30 samples simultaneously. Precision testing and technology have both reached the world advanced standard. About Labthink: Labthink, the excellent supplier of monitoring equipment and testing, is the best and most complete solutions for quality control for dedicated to the pharmaceutical, food, cosmetics, packaging, printing, adhesives, automotive, petrochemical, environmental, biology, new energy, construction, aviation and electronics. Labthink Instruments Co., Ltd. Mark Won Secretary@labthink.cn Tel: +86 (0) 531 85864214-8058 Fax: +86 (0) 531 85,812,140 www.labthink.cn

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