2000
DOI: 10.1177/004051750007000408
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Dyeing and Mechanical Properties of Cotton Fabrics Treated with Sodium Hydroxide/Liquid Ammonia and Liquid Ammonia/Sodium Hydroxide

Abstract: Desized and scoured cotton fabric is treated in a two-step process with sodium hydroxide/ liquid ammonia and liquid ammonia/sodium hydroxide to investigate the effect of the treatment sequence. Crystallinity, moisture regain, water absorbency, dyeability, and KES mechanical properties are measured. Despite a considerable decrease in crystallinity with both treatments, water absorbency decreases with NaOH/NH 3 and increases with NH 3 /NaOH compared with the untreated fabric. Furthermore, the NaOH/NH 3 treatment… Show more

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Cited by 25 publications
(41 citation statements)
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“…NaOH/NH3 treatment was much more effective at improving the soft hand of the fabric compared with NH3 alone [13,14]. On the other hand, NH3/NaOH improved dyeing properties, though the hand was inferior to the NH3 and NaOH/NH3 treatments [14].In this study, NH3 and NaOH/NH3 treated cotton fabrics are subsequently processed with hot water at 100 and 130°C. We then measure dyeing and mechanical properties and evaluate the effect of hot water on functional properties by means of KES measurements.…”
mentioning
confidence: 92%
“…NaOH/NH3 treatment was much more effective at improving the soft hand of the fabric compared with NH3 alone [13,14]. On the other hand, NH3/NaOH improved dyeing properties, though the hand was inferior to the NH3 and NaOH/NH3 treatments [14].In this study, NH3 and NaOH/NH3 treated cotton fabrics are subsequently processed with hot water at 100 and 130°C. We then measure dyeing and mechanical properties and evaluate the effect of hot water on functional properties by means of KES measurements.…”
mentioning
confidence: 92%
“…crystallinity), crystal size, etc. of cotton bre [1,2]. It converts the cellulose chain from cellulose I to cellulose II [3][4][5].…”
Section: Introductionmentioning
confidence: 99%
“…The crystal structure of cellulose II is formed during mercerisation and the regeneration of dissolved cellulose. The mercerisation of native cellulosic fibres was found to increase the internal surface area and to decrease crystallinity [25,26]. Wakida et al [26] attributed the increased dye uptake of mercerised cotton fibres to the lower crystallinity, while Tam et al [27] suggested that mercerisation disordered the surface of cotton fibres and increased adsorption sites for the dye molecules.…”
Section: Introductionmentioning
confidence: 99%
“…The mercerisation of native cellulosic fibres was found to increase the internal surface area and to decrease crystallinity [25,26]. Wakida et al [26] attributed the increased dye uptake of mercerised cotton fibres to the lower crystallinity, while Tam et al [27] suggested that mercerisation disordered the surface of cotton fibres and increased adsorption sites for the dye molecules. Also, orientation of the crystal structure was found to have a more pronounced effect on the dyeing of native cellulosic fibres than their crystallinity [28].…”
Section: Introductionmentioning
confidence: 99%