Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research ... more Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research was to study the dyeing of cotton fabric using extracts from wild leek (Allium burdickii). The bark of mango tree was used as a mordant. The pre-mordanting method was used and four treatments were investigated with respect to exhaustion of the dye. These were: temperature, time, pH and concentration of mordant. Dye exhaustion for 27 experiments was investigated by comparing the relationship between the independent and dependent variables. The regression model obtained from the interactions was significant with an R2 value of 0.611. The effect of pH was insignificant while all the other three variables significantly influenced exhaustion of dye. The optimised conditions for temperature, time and concentration of mordant were: 600C, 90 minutes and 28.18% owf, respectively. The fabrics showed acceptable fastness properties ranging from 2/3-4/5 (fair to very good), 1.2-4 (slightly considerab...
Annals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2019
There is a global quest for consumer eco-friendly and sustainable products fashioned with natural... more There is a global quest for consumer eco-friendly and sustainable products fashioned with natural dyes through either printing or dyeing. However, research on imparting white patterns on textile substrates with natural dye has concentrated on dyeing and printing techniques rather than on tie-dyeing technique. Tie-dying an ancient craft used for traditional/local identification has been executed at room temperatures with synthetic dyes. This paper thus investigates the effect of mordants on wash fastness of pre-mordanted tie-dyed cotton fabrics using natural dyes. Colourants from two plants acquired from Kenya namely marigold flower and muuku bark plant were extracted using aqueous extraction method. Before dyeing, the fabrics were scoured and bleached. Saltless dyeing preceded by first pre-mordanting tie-dyed cotton fabrics with copper sulphate and anhydrous Iron sulphate mordant for 30 minutes at 1000C. After pre-mordanting, fabrics were dyed with extracted colourants at 1000C for ...
There is a global quest for consumer eco-friendly and sustainable products fashioned with natural... more There is a global quest for consumer eco-friendly and sustainable products fashioned with natural dyes through either printing or dyeing. However, research on imparting white patterns on textile substrates with natural dye has concentrated on dyeing and printing techniques rather than on tie-dyeing technique. Tie-dying an ancient craft used for traditional/local identification has been executed at room temperatures with synthetic dyes. This paper thus investigates the effect of mordants on wash fastness of pre-mordanted tie-dyed cotton fabrics using natural dyes. Colourants from two plants acquired from Kenya namely marigold flower and muuku bark plant were extracted using aqueous extraction method. Before dyeing, the fabrics were scoured and bleached. Saltless dyeing preceded by first pre-mordanting tie-dyed cotton fabrics with copper sulphate and anhydrous Iron sulphate mordant for 30 minutes at 100C. After pre-mordanting, fabrics were dyed with extracted colourants at 100C for 45...
Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research ... more Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research work was to study the dyeing of cotton substrates using extracts from wild leek (Allium burdickii). The bark of mango tree was used as a mordant. The pre-mordanting method was used and four treatments were investigated with respect to exhaustion of the dye. These were: temperature, time, pH and concentration of mordant. Dye exhaustion for 27 experiments was investigated by comparing the relationship between the independent and dependent variables. The regression model obtained from the interactions was significant with an R 2 value of 0.611. The effect of pH was insignificant while all the other three variables significantly influenced exhaustion of dye. The optimised conditions for temperature, time and concentration of mordant were: 60oC, 90 minutes and 28.18% owf, respectively. The fabrics showed acceptable fastness properties ranging from 2/3-4/5 (fair to very good), 1.2-4 (slightly considerable to noticeable) and 4-5 (very good to excellent) for wash, perspiration and rubbing fastness, respectively.
Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research ... more Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research was to study the dyeing of cotton fabric using extracts from wild leek (Allium burdickii). The bark of mango tree was used as a mordant. The pre-mordanting method was used and four treatments were investigated with respect to exhaustion of the dye. These were: temperature, time, pH and concentration of mordant. Dye exhaustion for 27 experiments was investigated by comparing the relationship between the independent and dependent variables. The regression model obtained from the interactions was significant with an R2 value of 0.611. The effect of pH was insignificant while all the other three variables significantly influenced exhaustion of dye. The optimised conditions for temperature, time and concentration of mordant were: 600C, 90 minutes and 28.18% owf, respectively. The fabrics showed acceptable fastness properties ranging from 2/3-4/5 (fair to very good), 1.2-4 (slightly considerab...
Annals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2019
There is a global quest for consumer eco-friendly and sustainable products fashioned with natural... more There is a global quest for consumer eco-friendly and sustainable products fashioned with natural dyes through either printing or dyeing. However, research on imparting white patterns on textile substrates with natural dye has concentrated on dyeing and printing techniques rather than on tie-dyeing technique. Tie-dying an ancient craft used for traditional/local identification has been executed at room temperatures with synthetic dyes. This paper thus investigates the effect of mordants on wash fastness of pre-mordanted tie-dyed cotton fabrics using natural dyes. Colourants from two plants acquired from Kenya namely marigold flower and muuku bark plant were extracted using aqueous extraction method. Before dyeing, the fabrics were scoured and bleached. Saltless dyeing preceded by first pre-mordanting tie-dyed cotton fabrics with copper sulphate and anhydrous Iron sulphate mordant for 30 minutes at 1000C. After pre-mordanting, fabrics were dyed with extracted colourants at 1000C for ...
There is a global quest for consumer eco-friendly and sustainable products fashioned with natural... more There is a global quest for consumer eco-friendly and sustainable products fashioned with natural dyes through either printing or dyeing. However, research on imparting white patterns on textile substrates with natural dye has concentrated on dyeing and printing techniques rather than on tie-dyeing technique. Tie-dying an ancient craft used for traditional/local identification has been executed at room temperatures with synthetic dyes. This paper thus investigates the effect of mordants on wash fastness of pre-mordanted tie-dyed cotton fabrics using natural dyes. Colourants from two plants acquired from Kenya namely marigold flower and muuku bark plant were extracted using aqueous extraction method. Before dyeing, the fabrics were scoured and bleached. Saltless dyeing preceded by first pre-mordanting tie-dyed cotton fabrics with copper sulphate and anhydrous Iron sulphate mordant for 30 minutes at 100C. After pre-mordanting, fabrics were dyed with extracted colourants at 100C for 45...
Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research ... more Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research work was to study the dyeing of cotton substrates using extracts from wild leek (Allium burdickii). The bark of mango tree was used as a mordant. The pre-mordanting method was used and four treatments were investigated with respect to exhaustion of the dye. These were: temperature, time, pH and concentration of mordant. Dye exhaustion for 27 experiments was investigated by comparing the relationship between the independent and dependent variables. The regression model obtained from the interactions was significant with an R 2 value of 0.611. The effect of pH was insignificant while all the other three variables significantly influenced exhaustion of dye. The optimised conditions for temperature, time and concentration of mordant were: 60oC, 90 minutes and 28.18% owf, respectively. The fabrics showed acceptable fastness properties ranging from 2/3-4/5 (fair to very good), 1.2-4 (slightly considerable to noticeable) and 4-5 (very good to excellent) for wash, perspiration and rubbing fastness, respectively.
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