Cheap Plastic Containers

coil, or beer bottles, are the use of PET plastic. But when these materials are abandoned, faced with the problem of how to deal with the annual production of PET plastic bottles of tens of billions, it is expected that by 2005, each year there will be more than 500,000 tons of PET for the manufacture of PET plastic bottles. Therefore, the recycling of PET plastic bottles can not only solve environmental problems, but also can be used as a new raw material resources to alleviate the contradiction of China's lack of PET raw materials. Yes, look back at China's 30 years of reform and opening up, although China has made remarkable achievements in the economic field, but also to the Chinese environment has brought a very serious damage. Water pollution, air pollution and so on. To China's economy has brought shrinking. People are gradually aware of this problem, the corresponding proposed to take the road of sustainable development, green GDP strategy, circular economy strategy, and so a series of measures. It can be seen, PET plastic bottle recycling in line with China's real problems facing, for environmental protection, conservation of resources, sustainable development have great benefits. PET plastic bottles Application areas: PET has been used in the vast market, like the pharmaceutical industry, mineral water, beverage industry, pesticide industry, chemical packaging, food packaging, and even the future development of beer industry, and other fields.


Physical recovery processing
Law: PET plastic bottle physical recovery processing method is relatively simple, mainly to clean the PET plastic bottle waste dry and granulation. The physical handling of PET plastic bottles is closely linked to the sorting process. There are two main physical recovery methods: First, the waste PET plastic bottle chopped into pieces, from the PET separation of HDPE, aluminum, paper and adhesives, PET fragments and then washed, dried, granulation; Waste PET plastic bottles on the non-PET cap, base, labels and other impurities with mechanical separation, and then by washing, broken, granulation. Recycled PET may not contain PVC impurities, otherwise it will affect the color of PET. When the PVC mixed with less amount can be manually separated on the conveyor belt, that is, by the role of torque when the PVC and PET plastic bottles in the force part of the different melting point, the broken PET and PVC debris through the heater and temperature Control of the conveyor belt, PVC is melted and adhered to the conveyor belt, so that can be separated from the PET. The label on the beverage bottle can be removed after the bottle is broken with a blower and a cyclone separator. Can also be separated by the extraction tower separation device, broken PET fragments vertically from the top of the separation tower to join the debris and the rising air flow to form a countercurrent.

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Plastic Pet Containers

Even if uniform equipment to produce uniform specifications of the bottle, because the PET data function differences, the required pre-blowing pressure is not the same. Glass fiber reinforced PET data, the smaller pre-blowing pressure can make the bottom of the bottle of macromolecules accurate orientation; other materials used inappropriate or forming process is not appropriate preform, pouring around a large number of stress concentration is not easy to subside, If blow molding, often at the point of the break or in the stress test from the point of burst, leakage. According to the premise of orientation, this time as shown in the lamp out of 2-3 to the point above the opening, given the point of adequate heating, supply enough heat to promote its agile orientation. For preforms that have been heated for secondary applications or preformed preforms, the difference between the two temperatures is similar to that of the normal preform, and the requested heat is less and the pre-blowing pressure can also be reduced The 2.4 auxiliary equipment and mold auxiliary machine mainly refers to the mold to maintain the temperature of the equipment. Mold temperature has a major effect on maintaining the stability of the product.

General bottle temperature is high, the bottom of the bottle temperature is low. For the cold bottle, because the bottom of the cooling effect of the resolution of the molecular orientation of the level, the temperature control at 5-8 ℃ is better; and the bottom of the hot bottle temperature is much higher. Mold is the main function of the PET bottle blow molding process, the mold shape of the black and white will reduce or increase the difficulty of the process of adjustment, such as reinforcement, the arc of the transition zone and the bottom of the cooling state and so on have an impact on the swap process. 2.5 situation of the production of black and white on the process also have a greater impact on the transfer, a constant premise can keep the stability of the product and product stability. PET bottle blow molding is generally at room temperature, low humidity is better. 3 other requests for pressure bottles should also meet the requirements of stress testing and pressure testing. Stress test is to prevent the PET bottle filling the bottle and the lubricant (alkaline) in the process of molecular chain degradation occurred in the cracking, leakage and other content of the quality control; pressure test is to prevent the bottle charge Into the inevitable pressure after the body burst and the quality of the control. In order to meet these two needs, the central point of the thickness to be held in a certain range, the general situation is the center of thin, stress test is better, poor pressure; center point thick, good pressure test, stress test is poor. Of course, the results of the stress test also with the center of the transition area around the accumulation of material has a great relationship, which should be based on practical experience to adjust. 4 Conclusion PET bottle blow molding process is adjusted for the response to the information carried out, if the information is not safe, the request for the process is very harsh, and even difficult to blow the finished bottle.

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Second is the first PET plastic bottle waste on non-PET bottle, seat bottom, label and other impurities mechanically separated, then washed, crushed, granulated. Recycled PET shall not contain PVC impurities, otherwise it will affect the color of PET.

Can be separated by artificial means when a relatively small amount when PVC is mixed on a conveyor belt, namely that when the torque effect of PVC and PET plastic bottles have different melting points in different part of the force will be broken by PET and PVC fragments containing a heater and temperature conveyor control, PVC after being melt-adhered on the conveyor belt, so that the PET can be separated.

Tag beverage bottle after bottle broken can be separated with a blower and cyclone combination device removed. Also preclude the separation means separating column by pumping, crushing PET debris from the top of the vertical separation column, debris countercurrent updraft formed using PET label debris difference in specific gravity, the label is removing, PET separator from the bottom up, in order to guarantee label separation efficiency in production may preclude the use of two or more separate devices.

PET washing debris is very important. 80-100 ℃ washed often preclude the use of hot water to soften or dissolve the adhesive labels and the base of EVA adhesive or other types of adhesive, in order to prevent re-adhesion of the adhesive off the PET flakes, the water required additives, e.g. alkali, emulsifiers or other special chemical agents.


Cleaning fluid is generally determined by the factory waste bottle according to the source and the adhesive properties of the composition and the content of their formulations, recycled washing liquid can be filtered off after reheating impurities, in particular cleaning washing tank equipped with a stirrer were, in order to ensure cleaning effect, washing may preclude use secondary washing process.

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