For core plywood, we pay a lot of attention to the selection of raw materials because it is one of the most important materials to make a good board. No matter how good the quality of the glue or the face is, the poor core veneer cannot produce a perfect plywood board.
Our core veneer has grade A, B, C which are peeled off from eucalyptus, acacia, styrax… Each veneer is very thin with thickness of 1.7mm to 2mm, and the standard moisture content for manufacturing must be below 18%. As per the customer's requirements, we will choose the kinds of veneer suitable for the production of core plywood for every different purpose.
The veneer is spread by a glue rolling machine one by one so that the glue is evenly adhered on both sides of the veneer. Peeled boards that are not evenly glued willlead to delamination and edge separation if put into production.
2.3Arranging the veneer
Layering the veneer is very important, which can be considered as an art because if the veneers are not properly arranged, the finished plywood becomes weak, easily warped and broken.
We arrange the piece by staggered criss-cross to create a solid structure for commercial plywood. Two layers next to the face will be attached with plastic staplers to prevent jostling. The number of layers of veneers depends on the required thickness of the board.
2.6 Hot - pressing
Our factory is using hot pressing machines with the state of the art technology and the high capacity & stable pressing force of 6 cylinders, ensuring flat boards and quite accurate thickness. In turn, putting the panels into each tray of the hot press machine with suitable temperature and pressure heat helps bond the veneer layers together and permanently solidify the product structure.
2.7 Puttying the surface
We knock on the pressed core board then use putty to seal the small holes. After applying the putty, we let it dry for 1 day.
In order to make the plywood’s surface smooth, TTP’s factory always sands both sides of the panel by the sanding machine and each side is sanded 2 times to remove all rough and uneven parts.
2.9 Edge cutting
The panels will be cut into the standard size as per customer's request. The popular sizes of commercial plywood are 1220x2440mm, 910x1820mm,….
After cutting, the goods will be inspected by our experienced QC team one by one to assure all the cargo will be qualified and satisfy the customers. Standard commercial plywood evaluation criteria:
Surface & edge: flat, no warping, no tearing, no delamination
Dimensions : length x width x thickness as per customer's request
Moisture content is less than 15%
Finally, we count and stack up pieces to create a bundle. Four corners of bundles are covered with cartons, tied with strong steel/plastic straps, put on the high pallet to make the base which protects the product during the shipping process by sea.
These packages will be stored in a spacious and dry warehouse and ready to be loaded into containers for delivery to customers.
OUR QUALITY CERTIFICATION
During over 10 years in plywood industry, our company always try to serve our customer with most suitable and qualified products. Here are some certificates that indicate the specifications and quality of our plywood, which has been exported to the US, India, Korea, Malaysia, Japan, etc.