Study on the Relationship between Surface Color of Veneer and Dyeing Technique for Pinus sylvest var. mongolica

Dyeing experiment was conducted to explore the effects of dyeing concentration, Penetrant concentration, ash concentration, salt concentration, dyeing temperature and dyeing time, Fixing time, liquor ratio on surface coloration of Pinus sylvest var. mongolica as test material and reactive brilliant red X-3B as reagents. Color difference was measured by amulti-lightsource spectrophotometer, and results showed that dye concentration for the effects of color difference was monotonous relationship, and the other the impact of changed in both convex and concave, and finally to determined the optimal color for the dyeing process: dyeing concentration1%, Penetrant concentration0.1%, ash concentration, 2.5% salt concentration1.5%, dyeing temperature85°C and dyeing time60min, Fixing time40min, liquor ratio17:1.