Wood-based panels, especially medium-density fiberboard and particleboard in wood-based panels, have lost their natural texture and monotonous color. However, after surface treatment, the surface can be beautiful, the color is rich, and the decorative effect is improved. At the same time, after surface decoration, the surface will have good wear resistance, water resistance, heat resistance, weather resistance and corrosion resistance. Correspondingly, the static bending strength, stiffness and tensile strength of the sheet after the veneer treatment are improved, and the chemical stability will also be improved.
There are many methods for surface decoration of wood-based panels, one of which is to cover the surface with impregnated paper.
The impregnated paper veneer of the wood-based panel is directly attached to the surface of the artificial board by various special adhesive film impregnated with synthetic resin. After this method, the quality of the board surface is good, the process is simple, and the cost is low, so the impregnated paper veneer is more and more widely used for the artificial board veneer.
The process of artificial board impregnated paper veneer is divided into two parts: one is to make impregnated film paper, and the other is to laminate the artificial board with the impregnated film paper.
Examples of the immersion overlay paper include melamine resin impregnated paper, phenolic aldehyde resin impregnated paper, polybutylene phthalate resin impregnated paper, and guano resin impregnated paper. Among them, melamine resin impregnated paper is a kind of veneer material which is widely used at present. The melamine resin is a high-pressure resin that directly attaches the impregnated paper to the surface of the artificial board at a low pressure. This can save a hot supply and demand, shorten the production cycle, improve production efficiency, reduce production costs, and good veneer quality.
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