Premium
An Absorption Isotherm for Direct Dyes
Author(s) -
Crank J.
Publication year - 1947
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1947.tb02481.x
Subject(s) - absorption (acoustics) , chemistry , materials science , composite material
1 A new theory of direct dyeing is presented in terms of the Langmuir theory of surface adsorption, modified to allow for the effect of foreign electrolyte in the dyebath. 2 A simple formula is derived, relating the equilibrium absorption of dye to the dyebath concentration, the concentration of foreign electrolyte in the dyebath and the temperature. 3 The formula is shown to account satisfactorily for the main features of the equilibrium dyeing of cellulose by Chrysophenine G in the presence of sodium chloride. 4 The theory is used to calculate the energy of dyeing of cellulose by Chrysophenine G.