Back and cabinet liners and side panels



When the veneer is attached to a face of the component, an unstable condition occurs. The laminate is at a different rate than the substrate. Respond to humidity changes and reach different values. This creates stresses that can cause severe warpage and cracking. The obvious solution is to add a second laminate to the other side of the component. This gives the two sides of the symmetrical member an equal degree of swell, which also results in a high tensile modulus surface on both sides of the member that results in a high structural stiffness. Therefore, this balancing method is widely used in the furniture manufacturing industry.
When the veneer is used for a horizontal surface, the edges of the component must be processed immediately. Because the cross section of the laminate and its substrate here is exposed. The development of the side panels is to cover up this unsightly appearance. Some of the early side panels consisted of thin metal strips with the top edge milled slightly more than 90°. The edges of the mill are brought into full conformity with the surface of the laminate while the remaining metal strips cover the edges of the member. The metal may be a stainless steel, aluminum, brass plate that is typically bolted to the edge of the base plate.
Molded plastic side panels have also been developed. It is usually made of polyvinyl chloride and adhered to the edge of the member. In order to make the edges more beautiful, the laminate decorative pattern covering the edges should be the same as the flat panel. This has been developed to be adhered to the edges of the component with a thin laminate. This laminate consists of two layers of resin impregnated paper. The upper paper takes exactly the same decorative paper as used for the horizontal finish. The bottom paper is made of cellulose pulp or cotton paper. Both papers are saturated with 40%-60% trimeric amine-formaldehyde or polyester resin impregnation. Laminating operations are generally carried out on a continuous laminating press. Both double belt and single belt heated cylindrical continuous presses are available.

  • 30/01/2019
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