Open AccessExtraction of Eco-Friendly Natural Dyes from Pina Leaves and their Application on Wool Fabrics
Author(s) -
Ashaluddin Jalil,
S. Mahmood,
Azrin Hani Abdul Rashid,
Siti Hasir,
Sahar A. Ibrahim,
Mohd Rozi Ahmad
Publication year - 2019
Publication title -
international journal of engineering and technology
Language(s) - English
Resource type - Journals
ISSN - 2227-524X
DOI - 10.14419/ijet.v7i4.14.27689
Subject(s) - mordant , dyeing , wool , natural dye , pulp and paper industry , rubbing , chemistry , extraction (chemistry) , potassium dichromate , nuclear chemistry , materials science , organic chemistry , composite material , engineering
Natural dyes comprise of colorants that are obtained from animals or vegetable matters without any chemical processing. Natural dyes can substitute synthetic dye and promotes green technology initiatives in the field of textile dyeing. This study was carried out by extracting dyes from pineapple leaves (Ananas Comosus) using three stage mordanting methods using different mordants namely pre-mordanting, post-mordanting and simultaneous dyeing-mordanting. The mordants used were aluminium potassium sulphate, white vinegar and sodium chloride (NaCl). Wool fabrics were used for dyeing. The strength of colour and K/S values of the dyed fabrics were measured before and after washing. The colourfastness to washing, rubbing and light fastness of the fabrics were conducted to investigate the performance of the dye and mordants. The results indicate that the washing, rubbing and light fastness properties of dyed samples were between good to excellent grades.