Investigation of Dyeing Properties of Pine Wood Samples with Allium Cepa That Pretreated by Willow Extract

In this work, willow (1 kg) pieces were allowed for 21 days at room temperature and 27 numbers of pine wood samples were mordanted for 12 h in willow extract. these mordanted samples were dyed with dyestuff obtained from dried onion shell by boiling in deiyonized water, at ph=4, 7 and 8 using pre-mordantation, together-mordantation and last-mordantation methods. the solutions of cuso4·5h2o, aik(so4)2·12h2o and feso4·7h2o were used as mordanting agents. dyeing conditions and other characteristics were determined. in generally, with high fastness authentic colours were obtained