Dyeing of Cotton, Bombyx Mori and Eri Silk Fabrics with the Natural Dye Extracted from Tamarind Seed

Abstract

Abstract-This research studied the extraction of the natural dye from two different types of tamarind seed viz. sour-tamarind seed (TF) and sweet-tamarind seed (TO). The extracted dye solutions were prepared into a powder form and subsequently used for dyeing cotton and Bombyx Mori silk and Eri silk fabrics. From the experiment, the TF dye powder was easier soluble in water and could render a higher color strength than the TO dye powder. It was found for the tamarind-seed dyes that they could better exhausted on the silk fabrics than the cotton. Between the two silk fabrics, the dyes illustrated a higher degree of exhaustion on Bombyx Mori silk fabric than the Eri counterpart. The tamarind-seed dyes provide a reddish brown shade on the fabrics. This reddish brown shade could be altered when the dyed fabrics were put through the washing process. After washing, the shade of the dyed fabrics was more intense. The color fastness to washing of the dyed fabrics was in a good-excellent level. Even after experiencing 5-time washing, no significant shade change was observed on the dyed fabrics. The effect of mordants on the dyed fabrics was studied using three different mordants which were ZnSo 4 , K 2 Cr 2 O 7 and FeSo 4 . The ZnSo 4 mordant was found to enhance the color fastness to washing to the dyed fabrics without causing any shade change, while using K 2 Cr 2 O 7 as a mordant led to a shade alteration into a yellow brown but helped to stabilize the dye molecule, so such shade obtained was not sensitive to the washing condition. For the FeSo 4 mordant, it also caused the shade change on the dyed fabrics to a dull grey shade but providing an excellent color fastness to washing.

Review on Natural Dyes for Textiles from Wastes

“…Objective of the study: Sour and sweet tamarind seed husks or seed-coat has been used as a colourant to dye cotton and silk along [79].…”

“…Saleh [79] have extracted pigment from banana leaves using alkaline and acetone medium to dye Egyptian cotton fabrics in the presence of ferrous sulphate, copper sulphate and potassium dichromate as mordants. Dyeing of pre-mordanted cotton with the alkaline extracts of banana leaves was done at 80°C for 90 min at pH 9 using MLR 1:40; while dyeing with acetone extracted solution was carried out at 56°C for 5 min using MLR 1:40.…”

Generalidades de la seda y su proceso de teñido

“…Para esto se aprovechan hojas, cortezas, raíces [31,35], e incluso residuos de los procesos productivos agroindustriales [31,36,37]. También se encuentran reportes del empleo de insectos como fuente para la obtención de colorantes para la seda, especialmente la cochinilla (Dactylopiuscoccus) [31,38].…”

“…Estos ensayos, normas y criterios de calificación, son similares a los reportados en la bibliografía por los investigadores que evalúan los procesos de tintura de la seda [35,36,43] y otras fibras proteicas [32], [34], también se aproximan a los criterios de negociación típicos de este tipo de textiles.…”

Enhancement in Fabric Quality by Optimizing the Dyeing Process Parameters Using Response Surface Methodology

“…Their study was identified that precision setup of cycle time, run-time, dosing time and temperature gradient can improve meter-to-meter variation from 66%-86%; their study considers the factors namely water hardness, dyes combination and dyes leveling properties were optimum. Tepparin et al (2012) during their research work they studied and reported that the extraction of the natural dye from two different types of tamarind seed viz. sour-tamarind seed (TF) and sweet-tamarind seed (TO).…”