Premium
An Experimental Study of the Dyeability of Barry Nylon Fibre with Acid Dyes
Author(s) -
Greider K.
Publication year - 1974
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.1478-4408.1974.tb03180.x
Subject(s) - dyeing , acid dye , diffusion , substrate (aquarium) , textile , polymer chemistry , radius , nylon 6 , materials science , nylon 66 , composite material , chemistry , polymer science , thermodynamics , polymer , physics , computer science , oceanography , computer security , polyamide , geology
When nylon fibre is dyed with acid dyes, the rate of diffusion into the fibre depends on the draw to normal ratio than for one more highly drawn. The ratio of the diffusion coefficients for two such substrates is independent of both the dye used and the amount of dye fixed on the fibre. The differences which appear in the dyeing of barry nylon textiles relate to the time parameter Dt/r 2 (D is the diffusion coefficient in cm 2 /s, t, the dyeing time in s, and r, the substrate radius in cm). The greater this parameter, the better is the coverage of barriness arising from variations in the draw ratio. Since the diffusion coefficient for a given substrate is specific to the dye, acid dyes differ in their suitability for dyeing barry nylon textile fabrics.