HPL Plywood Lamination Types and INspection TIps
HPL Plywood are divided into direct Lamination and Non-direct Lamination.
Non-direct lamination also called Re- lamination .
The HPL sheets is laminated to the Substrate directly called direct lamination .
The Non-direct Lamination is to laminate the HPL sheets on the EV wood VENEER base board plywood .
Difference 1: Different ways of laminating
Direct lamination , as the name implies, is to laminate the HPL sheets of the substrate (i.e. HPL sheets ) directly onto the surface of the substrate of the base board, thus producing the finished hpl board. This process has a high requirement for the base substrate , which is the requirement for the surface smoothness of the base substrate . The smoothness is not up to the standard, and the effect of the whole finished substrate will be affected when directly laminated.
Therefore, the requirements of direct lamination for process and base substrate are very strict, which greatly reduced the production cost.
Re- lamination is to laminate HPL sheets to the okoume or birch or EV finished plywood , different manufacturers may use different thickness of face veneered plywood . Then the substrate material laminated with the face veneer fist, and laminate the HPL to the finished plywood .THis kind of relamination HPL plywood have better smoothness and flatness than direct lamination HPL plywood .
NON-DIRECT OR RE-lamination HPL plywood are normally exported to the USA and Canada to make cabinets .
Direct lamination HPL plywood are normally exporting to the ISRAEL markets ,also make cabinets .
The direct lamination HPL plywood and NON-DIRECT lamination HPL plywood are almost quite the contrary with the Direct Lamination Melamine Plywood and NON-DIRECT Lamination Melamine Plywood .
Non-direct lamination Melamine Plywood have a very smoothly and good surface of Plywood platform without long grade face veneer .