The overview of TTP's Commercial Plywood
MANUFACTURING PROCESS OF COMMERCIAL PLYWOOD
1. SELECTING THE CORE VENEER
For commercial plywood, we pays a lot of attention to the selection of raw materials because of the fact that no matter how good the quality of the glue or the face is, the poor core veneer cannot produce a perfect plywood board.
All the sheets of veneer used to manufacture commercial plywood are A and B grade, which are peeled off from hardwood such as eucalyptus, acacia,… with beautiful bright surface, especially good pressure resistance, and without hole or torn.
Each veneer is very thin with thickness of 1.7mm to 2mm, and the standard moisture content for manufacturing must be below 20%.
2. GLUE SPREADING
The veneer is spread by 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 will, if put into production, lead to delamination and edge separation.
Layering is very important, it can be considered as an art, because if the veneers are not properly arranged, the finished plywood becomes weak, easily warped and broken.
Staggered criss-cross to create a solid structure for the product. 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.
Cold pressing for a period of 4-8 hours will help to shape the panels temporarily.
5. REPAIRING THE SURFACE
Before hot pressong, workers will use expertise techniques turn over the board, remove the excess wood at the edges and veneer overlap on the surface.
6. FIRST TIME OF HOT PRESSING
Our factory is using hot presses with the latest technology, with 6 cylinders for high capacity, stable pressing force, ensuring flat boards, quite accurate thickness.
In turn, put the panels into each tray of the hot press machine, high temperature and pressure heat the glue to bond the veneer layers together and permanently solidify product structure.
Hot Pressing time depends on the thickness, ranging around 13-30 minutes
7. PUTTY THE SURFACE
Knock on the pressed core board , then use putty to seal the small holes. After applying the putty, 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, each side is sanded 2 times to remove all rough and uneven part.
9. STICKING THE FACE VENEER
After sanding, we glue on the sides of the sheets and stick the face veneer.
There are 2 types of face veneer mostly used for commercial plywood: bintagor and okume.
10. THE SECOND TIME OF HOT PRESS
This second hot press takes less time than the first time, only 2-3 minutes because this step is to stick the face veneer on the board.
11. CUTTING TO SIZE
The panels will be cut to the standard size as customer’s request, the popular sizes of commercial plywood is 1220x2440mm, 910x1820mm,…
12. INSPECTING QUALITY
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: flat, no warping, no tearing, no delamination
- Dimensions : length x width x thickness is correct
- Moisture content is less than 15%
Inspecting 1220x2440x15mm MLH
Inspecting 910x1820x11.5mm MLH
13. EDGE TREATMENT
Bathe the edge of the board. The bait helps to erase the imperfections on the edges and make the edge smooth, flat and beautiful.
Commercial plywood sheets are packed into a bundle as export packaging standard for each market.
Four corners of bundles are covered with carton, tied with strong steel straps, put on the pallet, which protect the product during shipping by sea.
Finally, these packages will be stored in a spacious and dry warehouse, ready to be loaded into containers for delivery to customers.
If you are looking for a reputable supplier who can guarantee high quality, large volume and good price, please feel free to contact us:
Hotline/WhatsApp/Line/Kakao: +84 934 482 488