Recently, eight researchers from the Parana Polytechnic Institute in Brazil jointly developed a new method for recycling composite packaging materials and filed a patent application.
Reinforced packaging made from layers of paper, plastic, and aluminum foil is increasingly used in the packaging of foods and pharmaceuticals. Although reinforced packaging materials are characterized by their strong resistance to corrosion and freshness, the structural characteristics of such packaging have caused their recycling to become a headache. The number of these materials in landfills is increasing. The new separation technology used by researchers has made it possible to recycle the reinforced packaging material.
They use a special chemical solvent to recover the three components of the package. After immersing the fortified bag in this solvent for two and a half minutes, the plastic, aluminum, and paper in the packaging material will delaminate. The three components are then separated by hand and the residual solvent is removed under high pressure. The three substances can be easily separated and recovered. This solvent is quite effective on paper, PVC plastic or polyethylene. This technology is not only suitable for the packaging of recycled milk and juice, but also for thinner packaging such as salt, vacuum coffee and eggs.
Children's Study Desk and chair set is furniture for children aged 3-18 to learn and write homework. The table has a lot of storage space. The platen is made of solid wood core material. The table board is adjustable, and the table legs can be raised and lowered to meet various needs. A tall child can do homework and draw; the Study Chair is an ergonomic chair that can be adjusted to protect the child's spine. The seat cushion is made of latex, which is very comfortable and will not be tired, so that children can learn healthily and happily.study table and chair, the height of the table and chair can be adjusted according to the height of the child. In addition to the most basic "cushion height" that can be adjusted, the "armrest and back cushions" can also be adjusted according to the child's thigh length and waist height. Adjust so that the child does not sit in the wrong position due to the improper height of the table and chair. And the chair is designed according to children's ergonomics, unlike ordinary chairs that are straight up and down, there is a double-back curve design, which supports the child's back and ensures that the waist and hips fit perfectly with the chair.
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