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pp plywood

Tuesday December-21 2021 15:26:01

How we laminate plastic to wood seamlessly for the yaxing Plastic plywood. Our technology was developed from studying the tree barks. Why do tree barks sticks on the branches and trunks. It s because the branches has fiber that extend into the bark, clinging them together tightly. Using this principal, we would first punch holes into the plywood, as this process will also test the strength of the plywood; we are able to pick out any defects. Second, we melt selected premium pp plastic and pour onto the surface of the plywood. Third, we apply pressure and push the melted plastic into the holes. As the plastic cools it contracts and clings onto the wood fiber. During this process, as the plastic goes from 220 degrees Celsius to 50, the contraction will create a tremendous force on the plywood; any defected plywood will de-laminate at this point. Hence, during the production the plywood has gone through several quality check points, any defects would be rejected immediately. This is one main reason why our quality is very stable and consistent.
At yaxing, we pay attention to the details that’s often overlooked by others, but they greatly determine the outcome of the products. Take Film Face Plywood for example. Most people pay attention only to the surface (to check the eveness) or the core (to check if its intact). However they do not check the moisture content of the board. A board with high moisture content, above 18%, means there are still water trapped within the layers of veneers. Often to save cost, the veneers do not go through the kiln dry machines. And even with air dry, the drying period has been shortened significantly. The end product will look fine at first. However when it reaches countries with little or no humidity like Saudi Arabia, The board's moisture content will shoot down to 5% and below in a matter of hours. When that happens,the moisture escapes through the plywood layers, diluting the glue structure thats holding the plywood together and results in de-lamination. In other cases it will cause the board to twist and warp. To prevent these problems, yaxing strictly enforces the inspection of moisture content of our Film Face Plywood to the standard of 12% and below. This will ensure the stability and utility of our products.