Characterization and comparison of salt-free reactive dyed cationized cotton hosiery fabrics with that of conventional dyed cotton fabrics

Arivithamani, Nallathambi; Dev, V. R. Giri

doi:10.1016/j.jclepro.2018.02.175

Cited by 59 publications

(33 citation statements)

References 19 publications

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“…Therefore, the achievement of salt-free reactive dyeing is now an important requirement for the cotton industry. Cationisation of cotton is an effective alternative way to eliminate the need for salt in the reactive dyeing process [155,157,158]. Researchers have made efforts to achieve salt-free reactive dyeing through the cationisation of cotton fabrics on an industrial scale using 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTAC) as a cationic agent by an exhaust method followed by salt-free reactive dyeing with ultradeep jet black dye of shade 9.95% using a combination of the dyes Black GDNN-8.2% and Navy Blue-1.75%.…”

Section: Cotton Wet Processing and Finishingmentioning

confidence: 99%

“…In addition to it being a salt-free dyeing process, the total dye fixation of the cationised cotton dyed fabric was higher at 58.2% whereas it was only 51.7% for the conventionally-dyed cotton fabric. A comparison of effluent parameters of both routes revealed that the total dissolved solid value for a salt-free reactive dyeing process was four times lower than for the conventional dyeing process [157]. The sequence of operations involved in conventional and salt-free dyeing processes are presented in Figure 9.…”

Section: Cotton Wet Processing and Finishingmentioning

confidence: 99%

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Cotton in the new millennium: advances, economics, perceptions and problems

et al. 2018

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Cotton is the most significant natural fibre and has been a preferred choice of the textile industry and consumers since the industrial revolution began. The share of man-made fibres, both regenerated and synthetic fibres, has grown considerably in recent times but cotton production has also been on the rise and accounts for about half of the fibres used for apparel and textile goods. To cotton's advantage, the premium attached to the presence of cotton fibre and the general positive consumer perception is well established, however, compared to commodity manmade fibres and high performance fibres, cotton has limitations in terms of its mechanical properties but can help to overcome moisture management issues that arise with performance apparel during active wear. This issue of Textile Progress aims to: i. Report on advances in cotton cultivation and processing as well as improvements to conventional cotton cultivation and ginning. The processing of cotton in the textile industry from fibre to finished fabric, cotton and its blends, and their applications in technical textiles are also covered. ii. Explore the economic impact of cotton in different parts of the world including an overview of global cotton trade. iii. Examine the environmental perception of cotton fibre and efforts in organic and genetically-modified (GM) cotton production. The topic of naturally-coloured cotton, post-consumer waste is covered and the environmental impacts of cotton cultivation and processing are discussed. Hazardous effects of cultivation, such as the extensive use of pesticides, insecticides and irrigation with fresh water, and consequences of the use of GM cotton and cotton fibres in general on the climate are summarised and the effects of cotton processing on workers are addressed. The potential hazards during cotton cultivation, processing and use are also included. iv. Examine how the properties of cotton textiles can be enhanced, for example, by improving wrinkle recovery and reducing the flammability of cotton fibre.

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Section: Cotton Wet Processing and Finishingmentioning

confidence: 99%

Section: Cotton Wet Processing and Finishingmentioning

confidence: 99%

Cotton in the new millennium: advances, economics, perceptions and problems

et al. 2018

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“…The use of a reactive dye during the dyeing of cationic cotton is often modified after the pretreatment step. Cationic modification of cotton can be done via a pad‐bake or an exhausting process and is performed on the cotton fabric before the reactive dye . The former process results in increased modification of the cellulose fiber but typically results in yellowed colors, but it is widely used in research and for practical applications .…”

Section: Introductionmentioning

confidence: 99%

“…Cationic modification of cotton can be done via a pad-bake or an exhausting process and is performed on the cotton fabric before the reactive dye. 5 The former process results in increased modification of the cellulose fiber but typically results in yellowed colors, but it is widely used in research and for practical applications. 6 The pretreatment process has many advantages, including easy control over the process conditions, uniform dyeing, and a high degree of modification.…”

Section: Introductionmentioning

confidence: 99%

Facile salt‐free process for cotton fabric dyeing: Pad‐irradiate‐pad‐steam process using 3‐chloro‐2‐hydroxypropyl trimethyl ammonium chloride

Chang

et al. 2019

Env Prog and Sustain Energy

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Severe effluent pollution has set new requirements for eliminating the use of salts during the reactive dyeing of cotton. In this study, 3‐chloro‐2‐hydroxypropyltrimethylammonium chloride was used as an etherifying agent via a pad‐irradiate‐pad‐steam process with a reactive dye to cationize cotton. The fabric underwent a microwave‐assisted pad‐irradiate process, and the cationic fabric was dyed salt‐free using a reactive dye in a pad‐steam process. The influence of etherifying conditions on the nitrogen content, grafting efficiency of the cotton samples, and dyeing properties of cationic cotton fabrics were investigated. Cationic cotton samples have the same dyeability with a reactive dye without salt as with dyes used in a conventional pad‐dry‐pad‐steam process because of the increase in the electrostatic attraction between the dye and the cationic cotton. Such an approach that eliminates salts is beneficial to environmental protection. Properties of the dyed cotton (such as color evenness, washing, and rubbing fastness) obtained using the reactive dye made the cotton fabric wearable enough to satisfy standard requirements.

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“…In order to solve the problem of salt pollution and improve dye uptake, the affinity between the dye and cotton must be improved. Cationizing the cotton fiber is the most direct and effective method to improve dyeing with anionic dyes, which is usually performed before the dyeing with a reactive dye by a pad‐bake process or an exhaust method . However, all these processes have disadvantages, including a long duration, high‐energy consumption, and the existence of several influencing factors .…”

Section: Introductionmentioning

confidence: 99%

Optimization of the cationizing condition in salt‐free reactive dyeing of cotton fabric with the pad‐irradiate‐pad‐steam process using response surface methodology

Tao

et al. 2019

Env Prog and Sustain Energy

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Response surface methodology is widely used in the optimization of dyeing conditions. Herein, the color strength and dye fixation rate of the cotton fabric dyed by pad-irradiate-pad-steam (PIPS) process were determined and compared to by conventional paddry-pad-steam (PDPS) process. Then the response surface methodology and central composite design were used to optimize the cationizing conditions during the padirradiation step of the process to obtain high color strength during the subsequent salt-free reactive dyeing of the cotton fabric via a pad-steam process. The obtained experimental data were fitted to the second-order polynomial equation, and response surface plots and contour plots were used to identify the optimal cationizing condition, the 3-chloro−2-hydroxypropyltrimethylammonium chloride concentration of 104 g/L, the microwave irradiation power of 537 W, the treatment time of 6 min, and the molar ratio of sodium hydroxide to 3-chloro-2-hydroxypropyltrimethylammonium chloride of 1.02. The results showed that the experimental color strength of the cotton fabrics was in close agreement with the value predicted by the model and the optimal cationizing condition was obtained precisely. K E Y W O R D S central composite design, pad-irradiate-pad-steam process, reactive dye, response surface methodology, salt-free dyeing

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Characterization and comparison of salt-free reactive dyed cationized cotton hosiery fabrics with that of conventional dyed cotton fabrics

Cited by 59 publications

References 19 publications

Cotton in the new millennium: advances, economics, perceptions and problems

Cotton in the new millennium: advances, economics, perceptions and problems

Facile salt‐free process for cotton fabric dyeing: Pad‐irradiate‐pad‐steam process using 3‐chloro‐2‐hydroxypropyl trimethyl ammonium chloride

Optimization of the cationizing condition in salt‐free reactive dyeing of cotton fabric with the pad‐irradiate‐pad‐steam process using response surface methodology

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