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PET packaging and the newest development of opportunity analysis

Publish:2013-6-7 9:31:18

PET (polyester) is from the sixties before they get half of the general development of a new synthetic material is from terephthalic acid (PTA) and ethylene glycol (EG) by esterification and polycondensation (PTA method) the system, or by terephthalate and ethylene glycol ester exchange reaction and polycondensation (DMT method) prepared PET resin. As a universal development of new synthetic materials, PET own merits very obvious, including the following points:

    (1) superior mechanical properties and wear resistance;

    (2) better creep resistance and stiffness;

    (3) water absorption is very low, and small linear expansion coefficient, high dimensional stability;

    (4) high thermal stability, low specific heat and thermal conductivity;

    (5) excellent electrical insulation properties;

    (6) excellent chemical resistance and the like.

    This determines the use of PET is also very broad, which is to create the largest amount of fiber, followed by bottle, again is to create films and sheets, in addition, for engineering applications, such as automotive, electronics, instruments and furniture industries .

    The past two years, PET containers for milk packaging a new breakthrough in the international arena, the Italian pasteurized starting from HDPE bottles to PET packaging, to solve the polyolefin bottles of smell and taste defects and poor. Corresponding blow molding, filling and capping into one device also addressed by Sidel. In addition, edible oil, spices, soy sauce, vinegar is a rising demand for PET bottle market, providing a lot of space for the development of PET.

    Applications in PET plastic packaging market is increasingly being welcomed by the majority of users, and its development trend instead of glass packaging is also a step in evolving. In particular position in this country on the map in the Chinese packaging, has gradually firm and started an in-depth development. PET beer bottles in particular the market more attractive business opportunities lurking. Our country is the world's first beer, glass bottles currently still dominated, while the US, Japan, Europe and other countries have been part of the brewery in PET packaging. To 20% of China's beer production is calculated using PET bottles, about 28 billion -300 one hundred million bottles of beer.

    Currently, the international PET bottle processing technology advances, emerging, and its main direction of development is to improve the barrier properties and heat resistance properties. Which appeared in the surface coating technology, a total injection stretch blow technology and blending modification technology, these technologies have introduced the country. And worthy of attention is the new technology of nano-modified PET bottles, clay nano-nylon composite containing 10% to 30% of the barrier to become nano-modified PET, PET is the main direction of beer bottles. For example, China's Henan bow Group uses nanotechnology for PET beer bottles inside wall coating, UV improve PET bottles, the performance of oxygen, carbon dioxide, and achieved good results.

    In addition, PET for packaging field also includes pharmaceutical, spices and sweets and many other everyday drip place. For example, in November retail pharmacies nationwide sold drugs Rexam's first recycled PET bottles, consumers are increasingly seeking under the "green" approach to reduce its impact on the environment. Rexam packaging company after becoming the first company to develop and sell the use of 100% post-consumer recycled PET resin made of transparent oval bottles. The PET bottles are available 2,3,4,6,8,12 and 16 ounces different models, can be repeatedly recycled, further reducing resource consumption and environmental impact.

    The first to use PET plastic bottles of Claude's condiment that instead of using PET bottle glass can save 50% of the freight, and can greatly reduce the broken / damaged goods, which will be paid to the retailer's refund reduced by 90%. And because the company uses a standard 16-ounce size, to replace the previous two 12 and 16 oz bottle size, production conversion time reduced from 4-5 hours to less than one hour.

    Fox Candy Company (Fox's Confectionery) recently selected a highly transparent PET jar from RPC Blackburn provided for improving's Glacier Mints and Glacier Fruits brand packaging quality. Injection stretch blow mold container will look and PET containers traditional candy container strengths and combines stylish good - lightweight, shatterproof, easy to carry and has a crystal-like sheen, which also ensure that the product can show their Best use characteristics. It is because it's there so Fox made the decision from PVC to PET container vessel transition. Trademark image is important, and RPC Blackburn can show the advantages of container products in the best form.

    Thus, changing the PET packaging technology and applications in various fields are concerned, the shortage of energy and raw materials prices in general today, in environmental protection has become a top priority now, PET packaging for its unique Advantages are developing robust, can be repeatedly recycled will further reduce the impact of resource consumption and the environment.


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