Sonia Hossain - Academia.edu (original) (raw)

Papers by Sonia Hossain

AATCC Journal of Research, 2021

Mercerization, the treatment of cotton with concentrated sodium hydroxide under tension, is perfo... more Mercerization, the treatment of cotton with concentrated sodium hydroxide under tension, is performed to enhance absorption, luster, strength and dimensional stability. After mercerization, the unreacted sodium hydroxide is neutralized with acids. Neutralization with polycarboxylic acids (PCAs) is likely not only to crosslink the cellulose molecules, but to also enhance other functional attributes like crease recovery behavior, flame retardancy, and soil release properties. In this research, four PCAs with different functional groups were used for fabric neutralization to merge mercerization and poly- functional finishing into one continuous process. The PCA treated fabrics were then assessed for their performance. All four PCAs were effective in improving crease recovery and soil release properties, and reducing the flammability, of the treated cotton fabric.

109506-6262 IJET-IJENS © December 2010 IJENS I J E N S  Abstract— Silk has always been the symbo... more 109506-6262 IJET-IJENS © December 2010 IJENS I J E N S  Abstract— Silk has always been the symbol of royalty due to its lustrous appearance and peach like softness. The coloration of this royal fiber is also an art form. The process varies largely in the form of hanks and woven pieces. There are numerous ranges of dyestuff available for use of silk dyeing. Almost every class of dyestuff used for cotton or wool can be used for dyeing silk. In general the dyestuffs are applied by techniques similar to those of wool or cotton. This research paper shows a comparative analysis of silk dyeing with acid dye, which is commonly used and reactive dye, which is more commonly applied on cotton. The study focuses on the dye uptake, different types of fastness properties and the strength of the dyed samples. It was found that reactive dyes showed better dye uptake and color fastness on silk than acid dyes but comparatively the strength of the fibre was decreased.

Dispersing agents play important roles in polyester dyeing with disperse dyes. The purpose of thi... more Dispersing agents play important roles in polyester dyeing with disperse dyes. The purpose of this work is to determine the influence of dispersing agents on the adsorption and desorption rate of polyester dyeing with CI Disperse Blue 284. Polyester fabric was dyed at HTHP method using two types of dispersing agents at different concentrations. The performances studied were the changes in dye transfer rate, K/S values of the dyed samples and dye bath concentration. The rate of adsorption and desorption of disperse dyes were affected significantly not only by the type but also the concentration of dispersing agents.

International Journal of Advanced Research, 2020

Sea food, found in a wide range of products is a delicacy in many coastal areas. The harvested pr... more Sea food, found in a wide range of products is a delicacy in many coastal areas. The harvested products are packaged and processed by the sea food industries. During their processing, the meat is only taken, while the head and shells of shell fish are generated as waste. The consequence is the generation of a large amount of shell waste globally. The fish industries, prominent in all coastal countries generate about 60,000 to 80,000 tons of waste. Although the wastes are biodegradable, the deposition of large quantities makes the degradation process to slow resulting in accumulation of waste over the time which leads to major environmental concern. The generated shell wastes thus obtained have only a low economic value and can be either used as animal feed or organic manure (Suchiva, Chandrkrachang et al. 2002, Parthiban, Balasundari et al. 2017).

International Journal of Advanced Research, 2020

The textile is a growing sector which traditionally requires huge amounts of water, energy, harsh... more The textile is a growing sector which traditionally requires huge amounts of water, energy, harsh chemicals, starting from pesticides for growing cotton to a variety of finishing chemicals, which results in high amounts of wash water in waste streams causing environmental burdens. Thus the desired textile processing procedures are those environmental friendly and economic ones that can save water, time and chemicals, yet preserve product qualities. Enzymes are known for their specificity, high efficiency and ability to work under milder conditions and thus inexorably provide a promising solution to those problems. This research paper focuses on a comparative analysis between the conventional pre-treatment processes with biopreparations using enzymes. Since use of the gentle enzyme process replaces the need for harsh processing with sodium hydroxide and other harmful chemicals, there is less contribution to the textile effluent and gives a softer textile product. Index Term-Pre-treat...

AATCC Journal of Research, 2021

Mercerization, the treatment of cotton with concentrated sodium hydroxide under tension, is perfo... more Mercerization, the treatment of cotton with concentrated sodium hydroxide under tension, is performed to enhance absorption, luster, strength and dimensional stability. After mercerization, the unreacted sodium hydroxide is neutralized with acids. Neutralization with polycarboxylic acids (PCAs) is likely not only to crosslink the cellulose molecules, but to also enhance other functional attributes like crease recovery behavior, flame retardancy, and soil release properties. In this research, four PCAs with different functional groups were used for fabric neutralization to merge mercerization and poly- functional finishing into one continuous process. The PCA treated fabrics were then assessed for their performance. All four PCAs were effective in improving crease recovery and soil release properties, and reducing the flammability, of the treated cotton fabric.

109506-6262 IJET-IJENS © December 2010 IJENS I J E N S  Abstract— Silk has always been the symbo... more 109506-6262 IJET-IJENS © December 2010 IJENS I J E N S  Abstract— Silk has always been the symbol of royalty due to its lustrous appearance and peach like softness. The coloration of this royal fiber is also an art form. The process varies largely in the form of hanks and woven pieces. There are numerous ranges of dyestuff available for use of silk dyeing. Almost every class of dyestuff used for cotton or wool can be used for dyeing silk. In general the dyestuffs are applied by techniques similar to those of wool or cotton. This research paper shows a comparative analysis of silk dyeing with acid dye, which is commonly used and reactive dye, which is more commonly applied on cotton. The study focuses on the dye uptake, different types of fastness properties and the strength of the dyed samples. It was found that reactive dyes showed better dye uptake and color fastness on silk than acid dyes but comparatively the strength of the fibre was decreased.

Dispersing agents play important roles in polyester dyeing with disperse dyes. The purpose of thi... more Dispersing agents play important roles in polyester dyeing with disperse dyes. The purpose of this work is to determine the influence of dispersing agents on the adsorption and desorption rate of polyester dyeing with CI Disperse Blue 284. Polyester fabric was dyed at HTHP method using two types of dispersing agents at different concentrations. The performances studied were the changes in dye transfer rate, K/S values of the dyed samples and dye bath concentration. The rate of adsorption and desorption of disperse dyes were affected significantly not only by the type but also the concentration of dispersing agents.

International Journal of Advanced Research, 2020

Sea food, found in a wide range of products is a delicacy in many coastal areas. The harvested pr... more Sea food, found in a wide range of products is a delicacy in many coastal areas. The harvested products are packaged and processed by the sea food industries. During their processing, the meat is only taken, while the head and shells of shell fish are generated as waste. The consequence is the generation of a large amount of shell waste globally. The fish industries, prominent in all coastal countries generate about 60,000 to 80,000 tons of waste. Although the wastes are biodegradable, the deposition of large quantities makes the degradation process to slow resulting in accumulation of waste over the time which leads to major environmental concern. The generated shell wastes thus obtained have only a low economic value and can be either used as animal feed or organic manure (Suchiva, Chandrkrachang et al. 2002, Parthiban, Balasundari et al. 2017).

International Journal of Advanced Research, 2020

The textile is a growing sector which traditionally requires huge amounts of water, energy, harsh... more The textile is a growing sector which traditionally requires huge amounts of water, energy, harsh chemicals, starting from pesticides for growing cotton to a variety of finishing chemicals, which results in high amounts of wash water in waste streams causing environmental burdens. Thus the desired textile processing procedures are those environmental friendly and economic ones that can save water, time and chemicals, yet preserve product qualities. Enzymes are known for their specificity, high efficiency and ability to work under milder conditions and thus inexorably provide a promising solution to those problems. This research paper focuses on a comparative analysis between the conventional pre-treatment processes with biopreparations using enzymes. Since use of the gentle enzyme process replaces the need for harsh processing with sodium hydroxide and other harmful chemicals, there is less contribution to the textile effluent and gives a softer textile product. Index Term-Pre-treat...