EKSTRAKSI ZAT WARNA ALAMI DARI KULIT BATANG JAMBLANG (SYZYGIUM CUMINI) SEBAGAI BAHAN DASAR PEWARNA TEKSTIL
ABSTRACT: Has done research on
the extraction of natural pigments from bark of Jamblang (Syzygium cumini) as a
base for textile dyes. This study aims to extract natural dyes from bark
of Jamblang as the base material of
textile dyes. The research was conducted in the laboratory of Chemistry FKIP
Syiah Kuala University. The population in this study is Jamblang bark (Syzygium
cumini) in Ujung Batee, Aceh Besar as much as 3 kg. A total of 500 gram sample
of wet bark of jamblang sokhletasi extracted with 2500 ml of water. Water extract
was concentrated by evaporator and the viscous extract obtained as many as
77.984 grams. Confirmation test results of water condensed tannins in the bark
extract showed a positive presence jamblang hydrolyzed tannins. Viscous extract
obtained water test conducted on fabric dyeing, paper, and wood. Dyeing process
is done by soaking for 1 hour at a temperature of 100oC and followed by a
fixation on the fabric color by using FeSO4, alum, and potassium bichromate for
15 minutes. Dyeing with bark extract of Jamblang give good results on fabric
and paper, whereas the only stain on the wood surface is uneven. The results of
dyeing the cloth with a fixation process to vary the color and fastness is
good.
Penulis: Mukhlis
Kode Jurnal: jpbiologidd110109
