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Research approaches on the use of ecotechnologies like ozone assisted processes for the decolorization of textiles are being explored as against the conventional alkaline reductive process for the color stripping of the cotton textiles. The evaluation of these ecotechnologies must be performed to assess the environmental impacts. Partial “gate to gate” Life Cycle Assessment (LCA) was implemented to study the ozone based decolorization process of the reactive dyed cotton textiles. Experiments were performed to determine input and output data flows for decolorization treatment of reactive dyed cotton textile using the ozonation process. The functional unit was defined as “treatment of 40 g of reactive dyed cotton fabric to achieve more than 94% color stripping”. Generic and specific data bases were also used to determine flows, and International Life Cycle Data system (ILCD) method was selected to convert all flows into environmental impacts. The impact category “Water resource depletion” is the highest for all the ozonation processes as it has the greatest relative value after normalization amongst all the impact indicators. Electricity and Oxygen formation were found to be the major contributors to the environmental impacts. New experimental conditions have been studied to optimize the impacts.
Ajinkya Powar; Anne Perwuelz; Nemeshwaree Behary; Le Hoang; Aussenac Thierry; Carmen Loghin; Stelian Maier; Jinping Guan; Guoqiang Chen. Environmental Profile Study of Ozone Decolorization of Reactive Dyed Cotton Textiles by Utilizing Life Cycle Assessment. Sustainability 2021, 13, 1225 .
AMA StyleAjinkya Powar, Anne Perwuelz, Nemeshwaree Behary, Le Hoang, Aussenac Thierry, Carmen Loghin, Stelian Maier, Jinping Guan, Guoqiang Chen. Environmental Profile Study of Ozone Decolorization of Reactive Dyed Cotton Textiles by Utilizing Life Cycle Assessment. Sustainability. 2021; 13 (3):1225.
Chicago/Turabian StyleAjinkya Powar; Anne Perwuelz; Nemeshwaree Behary; Le Hoang; Aussenac Thierry; Carmen Loghin; Stelian Maier; Jinping Guan; Guoqiang Chen. 2021. "Environmental Profile Study of Ozone Decolorization of Reactive Dyed Cotton Textiles by Utilizing Life Cycle Assessment." Sustainability 13, no. 3: 1225.
The decolorization of a cotton fabric dyed with a reactive dye (C.I. Reactive Black 5) was studied using an optimized ozone-assisted process at pilot scale. Box–Behnken design was used to evaluate the effects of three parameters on the decolorization of the dyed textile, namely, pH of the treatment (3–7), ozone concentration (5–85 g/m3 of ozone), and treatment time (10–50 min). The fitted mathematical model allowed us to plot response surfaces as well as isoresponse curves and to determine optimal decolorization conditions. In this study, we have proposed a pilot-scale machine which utilizes ozone for the color stripping of the dyed cotton. This pilot-scale application opens up the route for application of ozone at an industrial scale for achieving sustainability in the textile industry.
Ajinkya Sudhir Powar; Anne Perwuelz; Nemeshwaree Behary; Levinh Hoang; Thierry Aussenac. Application of Ozone Treatment for the Decolorization of the Reactive-Dyed Fabrics in a Pilot-Scale Process—Optimization through Response Surface Methodology. Sustainability 2020, 12, 471 .
AMA StyleAjinkya Sudhir Powar, Anne Perwuelz, Nemeshwaree Behary, Levinh Hoang, Thierry Aussenac. Application of Ozone Treatment for the Decolorization of the Reactive-Dyed Fabrics in a Pilot-Scale Process—Optimization through Response Surface Methodology. Sustainability. 2020; 12 (2):471.
Chicago/Turabian StyleAjinkya Sudhir Powar; Anne Perwuelz; Nemeshwaree Behary; Levinh Hoang; Thierry Aussenac. 2020. "Application of Ozone Treatment for the Decolorization of the Reactive-Dyed Fabrics in a Pilot-Scale Process—Optimization through Response Surface Methodology." Sustainability 12, no. 2: 471.
Radhia Abd Jelil; Xianyi Zeng; Ludovic Koehl; Anne Perwuelz. Modeling plasma surface modification of textile fabrics using artificial neural networks. Engineering Applications of Artificial Intelligence 2013, 26, 1854 -1864.
AMA StyleRadhia Abd Jelil, Xianyi Zeng, Ludovic Koehl, Anne Perwuelz. Modeling plasma surface modification of textile fabrics using artificial neural networks. Engineering Applications of Artificial Intelligence. 2013; 26 (8):1854-1864.
Chicago/Turabian StyleRadhia Abd Jelil; Xianyi Zeng; Ludovic Koehl; Anne Perwuelz. 2013. "Modeling plasma surface modification of textile fabrics using artificial neural networks." Engineering Applications of Artificial Intelligence 26, no. 8: 1854-1864.
In this study we categorised the surface properties of different knitted fabrics by their electro-kinetic behaviour and liquid up-take phenomena of the knitted textiles in order to understand the interaction of the surface properties of the textiles with cationic softener deposition. The electro-kinetic and liquid uptake properties of textiles were measured by their zeta-potential and liquid absorption ability. We also examined the influence of fabric softener on the surface characteristics of the textiles. We used solvent extraction followed by cationic titration to determine the cationic softener level present on the textiles. The major finding of this study was the different behaviour of individual loads and mixed loads in terms of cationic pick up from the rinse cycle softener. Fibre type plays the most critical role in determining the zeta potential of the fibre, filtration efficiency and water retaining capability of the fabrics, which in turn play the most important role in softener deposition on the textile. The charge on the textile surface is negative; this plays a key role in the deposition of the cationic softener in both kinds of loading conditions. Capillary diffusion could be a key parameter only in the individual load condition. It was found that there is a significant reduction in the liquid adsorption weight when fabrics are treated with levels of softener that are much higher than those associated with normal consumer use. As soon as the fabric comes into contact with the liquid, the fabric softener molecules transfer from the fabric to the liquid and reduce the surface energy of the liquid. This results in an increase in the wetting weight of the fabric.
Gaurav Agarwal; Anne Perwuelz; Ludovic Koehl; Kenneth S. Lee. Interaction between the Surface Properties of the Textiles and the Deposition of Cationic Softener. Journal of Surfactants and Detergents 2011, 15, 97 -105.
AMA StyleGaurav Agarwal, Anne Perwuelz, Ludovic Koehl, Kenneth S. Lee. Interaction between the Surface Properties of the Textiles and the Deposition of Cationic Softener. Journal of Surfactants and Detergents. 2011; 15 (1):97-105.
Chicago/Turabian StyleGaurav Agarwal; Anne Perwuelz; Ludovic Koehl; Kenneth S. Lee. 2011. "Interaction between the Surface Properties of the Textiles and the Deposition of Cationic Softener." Journal of Surfactants and Detergents 15, no. 1: 97-105.
In this study we tried to find the influence of fiber type, fiber fineness and knit construction on the amount of softener pick up by the fabric. Decision trees are developed to explain the cationic softener pick up depending upon the factors mentioned above. The influence of the type of load (mixed fiber load and individual fiber load) on the amount of softener deposited on the fabric was also studied. We have also quantified the non-uniformity of softener deposition. We used an image-processing tool to define non-uniformity of the softener deposition. It evaluates the spatial uniformity of softener deposition by evaluating the difference between observed patchy distribution and a random process which would lead to a uniform distribution.
Gaurav Agarwal; Ludovic Koehl; Anne Perwuelz. The Influence of Constructional Properties of Knitted Fabrics on Cationic Softener Pick Up and Deposition Uniformity. Textile Research Journal 2010, 80, 1432 -1441.
AMA StyleGaurav Agarwal, Ludovic Koehl, Anne Perwuelz. The Influence of Constructional Properties of Knitted Fabrics on Cationic Softener Pick Up and Deposition Uniformity. Textile Research Journal. 2010; 80 (14):1432-1441.
Chicago/Turabian StyleGaurav Agarwal; Ludovic Koehl; Anne Perwuelz. 2010. "The Influence of Constructional Properties of Knitted Fabrics on Cationic Softener Pick Up and Deposition Uniformity." Textile Research Journal 80, no. 14: 1432-1441.
The purpose of this work was to investigate how nonwoven fabrics absorb and diffuse liquids and to define relevant diffusion parameters, with a special focus on the influence of fiber diameter on the diffusion process. The nonwoven structures studied were composed of polyester fibers of different diameters and were manufactured with a drylaid/needlepunching process. The liquid diffusion properties were evaluated with decane, a perfectly wetting liquid. Two methods based on vertical wicking (one direction) and absorption capacity measurements were used. The vertical wicking test results showed that finer fibers led to higher capillary absorption ability, but to the detriment of liquid absorption rate. Blending two fibers of different diameters improved the liquid retention behavior, while maintaining absorption rates that were equivalent to nonwovens with the coarser fibers. Finally, the different results obtained in the two experimental methods for the liquid filling ratio are discussed.
Xiao Chen; Philippe Vroman; Maryline Lewandowski; Anne Perwuelz; Yan Zhang. Study of the Influence of Fiber Diameter and Fiber Blending on Liquid Absorption Inside Nonwoven Structures. Textile Research Journal 2009, 79, 1364 -1370.
AMA StyleXiao Chen, Philippe Vroman, Maryline Lewandowski, Anne Perwuelz, Yan Zhang. Study of the Influence of Fiber Diameter and Fiber Blending on Liquid Absorption Inside Nonwoven Structures. Textile Research Journal. 2009; 79 (15):1364-1370.
Chicago/Turabian StyleXiao Chen; Philippe Vroman; Maryline Lewandowski; Anne Perwuelz; Yan Zhang. 2009. "Study of the Influence of Fiber Diameter and Fiber Blending on Liquid Absorption Inside Nonwoven Structures." Textile Research Journal 79, no. 15: 1364-1370.
Capillary flow is studied in polyester and polyamide yams and glass fibers using a technique based on the analysis of CCD images taken during the capillary rise of colored liquid in yams. The transition from dry yam to wet yam is not abrupt. Experiments analyze the causes of this gradually rising liquid front and the results are explained. As expected, the kinetics of capillary rise always follows the Lucas-Washburn equation, but the great dispersion of the experimental results along the yams is attributed to the yarn heterogeneity of the interfilament space.
Anne Perwuelz; Pascal Mondon; Claude Caze. Experimental Study of Capillary Flow in Yarns. Textile Research Journal 2000, 70, 333 -339.
AMA StyleAnne Perwuelz, Pascal Mondon, Claude Caze. Experimental Study of Capillary Flow in Yarns. Textile Research Journal. 2000; 70 (4):333-339.
Chicago/Turabian StyleAnne Perwuelz; Pascal Mondon; Claude Caze. 2000. "Experimental Study of Capillary Flow in Yarns." Textile Research Journal 70, no. 4: 333-339.
The use of tensiometric balance technique for studying the organisation of the three phases, water/silicone oil/polyester fibre (PET) is discussed. The contact angle at this interface has been measured. If the fibre is first covered with oil, it is then difficult for water to displace the oil phase and the contact angle measured is greater than 90°, in most of the cases studied. On the contrary, when the fibre emerges from the water phase, the receding contact angle is low. The influence of the oil viscosity, of the relative speed between liquid and fibre and of the surfactants concentration have also been studied. Results depend on the phase where surfactants are introduced. As kinetics effects are difficult to understand, the study has been completed by static contact angle measurements.
Anne Perwuelz; Teresa Novais De Olivera; Claude Caze. Study of wetting at the silicone oil/water/fibre interface. Colloids and Surfaces A: Physicochemical and Engineering Aspects 1999, 147, 317 -329.
AMA StyleAnne Perwuelz, Teresa Novais De Olivera, Claude Caze. Study of wetting at the silicone oil/water/fibre interface. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 1999; 147 (3):317-329.
Chicago/Turabian StyleAnne Perwuelz; Teresa Novais De Olivera; Claude Caze. 1999. "Study of wetting at the silicone oil/water/fibre interface." Colloids and Surfaces A: Physicochemical and Engineering Aspects 147, no. 3: 317-329.