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Introduction of PET plastic cosmetic tube

2021-11-06

PET plastic cosmetic tube is not only widely used for packaging cosmetics, skin care products, etc., but also the most used cosmetic packaging today, but also PET plastic packaging is widely used in many fields such as chemical and pharmaceutical packaging. PET plastic has a wide range of applications in the packaging field. Both packaging film and roll materials use PET plastic. But when these materials are discarded, they face the problem of how to deal with them. There are tens of billions of PET plastic cosmetic tubes produced by cosmetic tube manufacturers every year. It is estimated that by 2025, more than 500,000 tons of PET plastic will be used in the manufacture of PET plastic cosmetic tubes each year.

The recycling of PET plastic cosmetic tubes can not only solve environmental problems, but also can be used as a new raw material resource to alleviate the contradiction of the shortage of PET plastic raw materials for cosmetic tube manufacturers. Yes, looking back on the development of cosmetic tube manufacturers, although cosmetic tube manufacturers have achieved world-renowned achievements in the economic field, they have also brought serious damage to the environment of cosmetic tube manufacturers.

 

Water pollution, air pollution, solid waste pollution, etc. This has brought shrinkage to the economy of cosmetic tube manufacturers. Cosmetic tube manufacturers have gradually realized this problem, and accordingly put forward a series of measures to take the road of sustainable development, green cosmetics packaging strategy, circular economy strategy, and so on. It can be seen that the recycling of PET plastic cosmetic tubes meets the practical problems faced by cosmetic tube manufacturers, and is of great benefit to environmental protection, resource conservation, and sustainable development.

The physical recycling method of PET plastic cosmetic tube is relatively simple, mainly drying and pelletizing the cleaned PET plastic cosmetic tube waste. The physical treatment of PET plastic cosmetic tube is closely related to the sorting process. There are two main physical recycling methods: one is to cut waste PET plastic cosmetic tubes into pieces, separate HDPE, aluminum, paper and adhesives from the PET plastic, and then wash, dry, and pelletize the PET plastic fragments; Second, the non-PET plastic bottle caps, seat bottoms, labels and other impurities on the waste PET plastic cosmetic tubes are separated mechanically, and then washed, crushed, and granulated. Recycled PET plastic must not contain PVC impurities, otherwise it will affect the color of PET plastic.

 

When the amount of PVC mixed in is small, it can be separated manually on the conveyor belt, that is, PVC and PET plastic cosmetic tubes have different melting points in the stressed part when subjected to torsion, and the broken PET plastic and PVC fragments are heated by heating The PVC is melted and adheres to the conveyor belt, so that it can be separated from the PET plastic. The label on the cosmetic bottle can be removed by a combined separation device of a blower and cyclone after the bottle is broken. It can also be separated by a suction tower separation device. The broken PET plastic fragments are added vertically from the top of the separation tower. The fragments and the updraft form a countercurrent. Using the difference in specific gravity between the PET plastic and the label fragments, the label is extracted and the PET plastic comes out from the bottom of the separator. , In order to ensure label separation efficiency, more than two sets of separation devices can be used in production.

 

The washing of PET plastic chips is very important. Washing often uses hot water at 80-100℃ to soften or dissolve the EVA adhesive or other types of adhesives that stick the label and the base. In order to prevent the falling adhesive from adhering to the PET plastic fragments, it is necessary to add additives in the water, such as Alkali, emulsifier or other special chemical agents. The cleaning fluid is generally determined by the cosmetic tube manufacturer according to the source and bonding characteristics of the waste bottle to determine its formula composition and content. The cleaning fluid can filter out impurities and reheat it for recycling. The washing can be carried out in a special cleaning tank equipped with a stirrer. In order to ensure the cleaning effect, the washing can adopt a secondary washing process. PET plastic fragments are usually reduced to 2% by a centrifugal dehydrator, and then dried by a belt or tube dryer to reduce the moisture content to 0.5%.

 

The high-quality PET plastic cosmetic tube recycling system successfully developed by Krones of Germany can process up to 15,000 tons of PET plastic cosmetic bottles per year. The processed PET plastic raw materials can be directly made into other PET plastic containers and cosmetic tubes. The manufacturer's production costs are greatly reduced. The PET plastic cosmetic tube recycling system uses chemical coating elimination technology. The cosmetic tube manufacturer uses caustic soda as a chemical coating remover to remove the contaminants adhering to the surface of the PET plastic cosmetic tube, which can realize any kind of PET plastic cosmetics. Recycling of tubes. The recycled products processed by this technology can not only be directly mixed to make preforms, but at the same time, because of the low content of acetaldehyde and yellow pigment, the recycled products can also meet the requirements of purity and quality. It is especially suitable for products in the food and cosmetics industries. The cost of packaging is 20%-30% lower than that of general new materials.



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