EXTRACTION OF DYESTUFF FROM ONION (Allium cepa L.) AND INVESTIGATION OF DYEING PROPERTIES OF COTTON AND WOOL FABRICS USING ( urea+ammonia+calcium oxalate ) MIXTURE

Yıl 2015, Sayı: 2, 19 - 25, 01.03.2015

Adem Önal

Öz

The dyestuff from onion (Allium cepa L.) was extracted using Soxhlet apparatus with distilled water. Wool and cotton fabrics were pretreated with (urea+ammonia+calcium oxalate ) mixtures, artificial animal urine system (AAUS) before dyeing. The solutions 0.1 M of CuSO4, FeSO4 and AlK(SO4)2.12H2O were used as mordant agents. Pre-mordanting, together mordanting and last mordanting methods were applied at pH =4 and pH= 7 for dyeing of fabrics. According to the fastness results, the best dyeing method was determined as together mordanting method at pH=4 for wool and last mordanting method at pH= 7 for cotton fabric. The results also reveal that the onion containing Quercetin dyestuff shall probably be an important raw material for dyeing process of natural textile fibers

Anahtar Kelimeler

Wool, Cotton, Oxalate, Dyeing, Fastness