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Effect of metal ion binding of chitosan on the printability of pretreated wool fabric
Author(s) -
AbouOkeil A,
Hakeim O A
Publication year - 2005
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2005.tb00247.x
Subject(s) - wool , lawsone , chitosan , chemistry , metal , metal ions in aqueous solution , copper , nuclear chemistry , polymer chemistry , organic chemistry , materials science , composite material
In this study, chitosan was used as a pretreatment agent for wool fabric to increase the metal binding during the mordanting process with copper sulphate. The copper(II) binding was measured by measuring volumetrically the concentration of metal ions that remained in the solution after mordanting. The pretreated mordanted wool samples were then subjected to printing with a natural dye, 2‐hydroxy‐1,4‐naphthoquinone (lawsone). The results indicate that color strength and wash fastness of the pretreated printed wool samples were enhanced compared to the untreated samples. This enhancement depends mainly on the molecular weight and concentration of chitosan.