Abstract: Calamus simplicifolius and Daemonorops margaritae are dyed with 8 kinds of dyes. Analyzsis of influence of different structure dyes on dye uptake with two kinds of rattan.The result shows that acid scarlet-GR is the biggest permeability of dye on C.simplicifolius and D.margaritae. The -SO₃^- of its -SO₃H and hydrophilic group of wood fiber compounded covalent bond with hydrogen bond and VDW. The influence of different structure of the dye penetration on C.simplicifolius has the order of acidic dye > reactive dye > direct dye > alkaline dye;it's reactive dye > acidic dye > direct dye > alkaline with D.margaritae.

Key words: Calamus simplicifolius, Daemonorops margaritae, permeability, dyeing mechanism