Nowadays, there are more and more kinds of packaging boxes in contact, such as hardcover and simple packaging, plastic, paper, wood, iron, etc., and all walks of life are paying more and more attention to the concept of green environmental protection, especially for waste plastic packaging boxes. The management of custom boxes is very strict. The recycling of plastic packaging waste is considered to be the most effective way to control environmental pollution, and to effectively use resources and save energy. So how should we deal with the discarded custom boxes?
Plastic waste recycling technology The recycling technology of plastic packaging waste can be roughly divided into three types: recycling technology, incineration to obtain energy or regaining raw materials, and landfill technology: recycling is the most active way to promote material recycling. The method of recycling is an effective recycling method to protect resources and protect the ecological environment. This method can be divided into three methods: recycling recycling, mechanical treatment recycling, chemical treatment recycling and recycling. Recycling recycling means that there is no longer a process of processing, but directly reused after cleaning.
Mechanical treatment and recycling include direct recycling and modified recycling. Direct recycling mainly refers to waste plastics, which are directly plasticized after pre-treatment, crushed, and then processed and pelletized. This method is mainly used for leftovers and leftovers in the production process of packaging products. They can be directly fed into the hopper and used with new materials at the same time without any pre-treatment; it can also be used for use, but very clean, without any Contaminated plastic containers, etc. Secondly, after separation, washing, drying, crushing and other pre-treatments, especially for contaminated products, first rough washing is required to remove sand, stones, gold and other impurities to prevent damage to the machine; then centrifugal dewatering, and then sent to the crusher, and then proceed. Fine wash to get rid of the impurities inside the customized packaging box. After washing, it is dried and directly plasticized or granulated. Its objects are generally packaging containers, pockets, films, etc. of various uses and shapes.
Or it needs to undergo special pretreatment. For example, PS foam is too bulky to be imported into the processing machinery, so it must be defoamed and volume-reduced in advance. Because different types of products use different deaerators, the purpose of publishing and printing modification and reuse is to improve the basic mechanical properties of recycled materials to meet the needs of recycled special products.
