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Abstract

The surface quality of papers impregnated with a mimosa tannin resin and a MUF resin for application as surface coating on wood panels was compared. The impregnated papers were conditioned to 23% and 10% moisture contents and pressed on to beech plywood. Moisture content of the impregnated papers before pressing was found to influence the abrasion resistance for both mimosa tannin resin and MUF resin impregnated papers. Colour measurements were carried out to relate the different paper colours to the two different moisture contents at pressing. Mimosa tannin impregnated papers at 23% moisture content had a lighter shade compared to impregnated papers with mimosa tannin resins at 10% moisture content. Impregnated papers with mimosa tannin resin gave excellent results for water vapour resistance, cross-cut test and abrasion resistance compared to papers impregnated with MUF resin according to relevant standards.

Keywords

Mimosa tannin Resin impregnated paper Surface quality Colour measurement

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Note on surface quality of plywood overlaid with mimosa ( Acacia mearnsii ) tannin and melamine urea formaldehyde impregnated paper: Effects of moisture content of resin impregnated papers before pressing on physical properties of overlaid panels

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