本研究通过改善泡桐的渗透性，来解决多年来一直困扰泡桐加工业的防变色处理效果不佳的难题。试验表明，对豫林一号泡桐材改善渗透性后进行防变色处理的试件，与相同条件下未改善渗透性即进行防变色处理的对照样相比较，白度和明度有极显著提高，总色差有极显著降低，好于外贸出口一级板材标准。 This study to solve the permeability of paulownia to solve the problem of anti-discoloration treatment effect which paralleled the paulownia processing industry for many years. The test shows that the whiteness and lightness of the test pieces of Yulin No.1 paulownia material after improving permeability are compared with those of the control samples without changing the color discoloration under the same conditions, Total color difference is significantly reduced, better than a standard export plate.