Recycling products and recycling methods for waste flexible packaging

The comprehensive recycling of beverages and other carton flexible packaging composite materials is too difficult, so different manufacturers gradually shift the focus of compound recycling to the separation and recovery approach.

Aluminum-plastic automatic separator is one of the frequently reported technologies. Recently, eight researchers from the Parana Polytechnic Institute in Brazil jointly developed a new method for recycling composite packaging materials. Researchers use a special chemical solvent to recover the three components of paper aluminum-plastic composites. After the composite bag is immersed in the solvent for two and a half minutes, the plastic, aluminum and paper in the packaging material will be layered. The three components are then manually separated and the remaining solvent is removed at high pressure. The three substances can be easily separated and recovered. This solvent is quite effective for paper, PVC or PE. This technology is not only suitable for the packaging of recycled milk and juice, but also for thinner packaging such as salt, coffee and eggs.

According to relevant media reports, domestic manufacturers have also developed an aluminum-plastic automatic separating agent that can be used for the separation and recycling of various aluminum-plastic composite packaging. According to reports, using aluminum-plastic automatic separating agent, the waste aluminum-plastic packaging into the container, adding water and automatic separating agent, aluminum-plastic packaging will completely separate aluminum plastic in 20 minutes, per ton of waste aluminum-plastic packaging can be separated 0.85 tons of recycled plastic and 0.1 tons of waste aluminum.

Guangdong Far East Food Packaging Machinery Co., Ltd. successfully developed the "FCLS-1 type waste packaging recycling recycling Production Line", not long ago passed the acceptance of the Guangdong Province Science and Technology Agency expert group. According to reports, the device can completely separate the three types of waste beverage boxes (plastic, paper, and aluminum foil) into high-quality resins, pulp, and aluminum powder for reuse by the packaging industry for recycling. This will not only reduce pollution, rational use of resources, but also enable enterprises to obtain considerable economic benefits.

Hot plate separation technology is also a technique for the separation of paper-plastic composites. The method is to separate waste plastic paper and plastic materials and separate paper and plastic for separate regeneration. First, the paper-plastic composite paper is horizontally placed on a heating plate, and the plastic on the paper-plastic composite material is shrinked and deformed to separate from the paper surface by heating.

Source: Adsale Publications