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Eco-friendly dyeing of cotton using waste-derived natural dyes and mordants / Faiza Nazir in COLORATION TECHNOLOGY, Vol. 138, N° 6 (12/2022)
[article]
Titre : Eco-friendly dyeing of cotton using waste-derived natural dyes and mordants Type de document : texte imprimé Auteurs : Faiza Nazir, Auteur ; Amna Siddique, Auteur ; Ahsan Nazir, Auteur ; Sonia Javed, Auteur ; Tanveer Hussain, Auteur ; Sharjeel Abid, Auteur Année de publication : 2022 Article en page(s) : p. 684-692 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biomatériaux
Caractérisation
Colorants végétaux
Colorimétrie
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Déchets végétaux -- Recyclage
Extraction (chimie)
Mordants (chimie)
Photostabilité
Solidité de la couleur
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Because of the environmental burden of synthetic dyes, there has been a revival in practising natural dyeing globally. Natural dyeing uses metallic mordants for improving the dye's fastness properties. However, metallic mordants are also toxic. Herein, both the dyes and mordants were extracted from plant waste using water as a green solvent. The extracted dyes were then applied to the cotton fabric using a natural mordant. The dyed fabric samples were characterised for colour yield, fastness properties, ultraviolet protection and antibacterial activity. For the intended purpose, the wastes of sugarcane bagasse, wheat bran and rice husk were used for dye and mordant extraction. It was found that by increasing the extraction temperature from 30 to 60°C, the dye yield increased. From the K/S values, it was observed that premordanting gave better colour strength than post-mordanting or meta-mordanting. The overall ratings for washing and crocking were 3-4 and 4-5, respectively. No significant antibacterial activity was observed in the dyed samples. However, excellent ultraviolet protection was observed. Note de contenu : - MATERIALS AND METHODS : Sample collection for colour extraction - Extraction of colourant - Percentage of dye extract - Extraction of natural mordant - Dyeing of fabric
- CHARACTERISATION : Measurement of colour strength - Washing fastness - Crocking fastness - Light fastness - Ultraviolet protection - Antibacterial activity
- RESULTS AND DISCUSSION : Percentage yield - Shades obtained on dyed fabric - Colour strength analysis - Fastness properties
- Table 1 : Percentage yield of dye extracts at 30 and 60°C
- Table 2 : K/S value comparison of dyed samples
- Table 3 : Fastness attributes of the dyed samples
- Table 4 : Ultraviolet protection factor (UPF) of dyed fabricsDOI : https://doi.org/10.1111/cote.12629 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12629 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38381
in COLORATION TECHNOLOGY > Vol. 138, N° 6 (12/2022) . - p. 684-692[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23716 - Périodique Bibliothèque principale Documentaires Disponible Ecological performance of lenzing modal color fabrics vs. conventionally dyed fabrics / B. M. Krishna Manda in CHEMICAL FIBERS INTERNATIONAL, Vol. 64, N° 2 (05/2014)
[article]
Titre : Ecological performance of lenzing modal color fabrics vs. conventionally dyed fabrics Type de document : texte imprimé Auteurs : B. M. Krishna Manda, Auteur ; Nicoleta A. Terinte, Auteur ; Martin Patel, Auteur Année de publication : 2014 Article en page(s) : p. 88-91 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Coût -- Contrôle
Durée de vie (Ingénierie)
Eau -- Consommation -- Réduction
Economies d'énergie
Gaz à effet de serre -- Réduction
Pollution -- Lutte contre
Teinture -- Fibres textilesIndex. décimale : 677 Textiles Résumé : Textile wet processing such as dyeing adds value to the apparel, but has the potential to cause significant environmental and human health impacts. Fabrics made from Lenzing Modal Color fibers (spun-dyed fibers by Lenzing AG, Lenzing/Austria) can reduce these impacts significantly. Here, the environ-mental performance of spun-dyed Lenzing black modal fabrics will be shown versus conventionally dyed black modal fabrics made in Austria. A Life Cycle Assessment (LCA) was conducted, from the production of wood to the stage of dyed and finished fabric. The overall production of spun-dyed Lenzing Modal Color fabric has 50% lower energy use, 600/0 lower carbon footprint, requires only 50% of water and has significantly louver (40-60%) environmental impacts compared to conventionally dyed fabric. Just considering the wet processing stages, cumulative energy use and carbon footprint is around 800/0 lower, and water use is 640/0 louver. This improved environmental performance of spun-dyed fabric can contribute to business value creation such as significantly reducing production costs for value chain actors, helps reducing the environmental footprint of end products, enhances reputation of brands and retailers, and can contribute to mitigating global problems such as climate change and resource scarcity while catering to the rising demand for clothing fuelled by ever growing world population. Note de contenu : - RESULTS : Energy use - Water use - Carbon footprint - Environmental impacts - Toxicity impacts
- BUSINESS CASE FOR SUSTAINABLE INNOVATION : Pollution prevention and cost reduction - Innovation and environmental footprint - Enhanced brand reputation and legitimacy - Addressing mega problemsEn ligne : https://drive.google.com/file/d/1f7b53utS5rXmdTowVUT0SFqf0Pqy4isr/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21522
in CHEMICAL FIBERS INTERNATIONAL > Vol. 64, N° 2 (05/2014) . - p. 88-91[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16302 - Périodique Bibliothèque principale Documentaires Disponible Effect of reactive dyeing on the UV protection affected by knitted fabric made from different types of cotton fibre / C. W. Kan in COLORATION TECHNOLOGY, Vol. 132, N° 2 (04/2016)
[article]
Titre : Effect of reactive dyeing on the UV protection affected by knitted fabric made from different types of cotton fibre Type de document : texte imprimé Auteurs : C. W. Kan, Auteur ; C. H. Au, Auteur Année de publication : 2016 Article en page(s) : p. 114-120 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Fibres végétales
Peignage (fibres textiles)Le peignage consiste à paralléliser les fibres et à ne conserver que les plus longues, tout en retirant l'air contenu entre les fibres. Le fil obtenu est lisse et brillant, solide mais moins doux.
Protection contre le rayonnement ultraviolet
Teinture -- Fibres textiles
TricotIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, 100% cotton knitted fabrics made from combed cotton and combed pima cotton were dyed with reactive dye, with different dye concentrations. Colour properties such as CIE L*a*b* values as well as dyeing uniformity of the dyed fabrics were measured. The relationships between colour properties and the ultraviolet protection afforded by cotton knitted fabrics were investigated. Experimental results revealed that dye concentration is the most important factor. In addition, only L* values have a direct mathematical relationship with the ultraviolet protection factor; a* and b* values and dyeing uniformity were not found to have a significant correlation with ultraviolet protection factor values. Meanwhile, knitted fabric made from combed cotton fibre has better ultraviolet protection performance than fabric made from combed pima cotton fibre. Note de contenu : - EXPERIMENTAL : Materials - Combined scouring and bleaching of cotton knitted fabric - Reactive dye dyeing - Ultraviolet protection factor measurement - CIE L*a*b* measurement
- RESULTS AND DISCUSSION : Relationship between dye concentration and ultraviolet protection factor - Relationship between fibre type and ultraviolet protection factor - Relationship between colour values and ultraviolet protection factor - Relationship between dyeing levelness and ultraviolet protection factorDOI : 10.1111/cote.12201 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12201 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25854
in COLORATION TECHNOLOGY > Vol. 132, N° 2 (04/2016) . - p. 114-120[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18025 - Périodique Bibliothèque principale Documentaires Disponible Effect of silica based sols on the optical properties and colour fastness of synthetic indigo dyed denim fabrics / Sabiha Sezgin Bozok in COLORATION TECHNOLOGY, Vol. 137, N° 3 (06/2021)
[article]
Titre : Effect of silica based sols on the optical properties and colour fastness of synthetic indigo dyed denim fabrics Type de document : texte imprimé Auteurs : Sabiha Sezgin Bozok, Auteur ; Ramazan Tugrul Ogulata, Auteur Année de publication : 2021 Article en page(s) : p. 209-216 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : 3-Glycidoxypropyltrimethoxysilane
Colorimétrie
Enrobage (technologie)
Essais (technologie)
Indigo
Jeans
Orthosilicate de tétraéthyleL'orthosilicate de tétraéthyle (TEOS) est un composé chimique de formule Si(OCH2CH3)4 ou plus simplement Si(OEt)4; l'abréviation TEOS (pour tetraethylorthosilicate) est généralement utilisée dans l'industrie du sol-gel, où il est intensivement étudié. La majorité des études en sol-gel pour des sols de silices ont utilisé ce produit comme précurseur.
Le TEOS est généralement produit par alcoolyse du tétrachlorure de silicium SiCl4 dans de l'éthanol CH3CH2OH :
SiCl4 + 4 CH3CH2OH → Si(OCH2CH3)4 + 4 HCl.
Il est utilisé pour la réticulation de silicones et possède certaines applications comme précurseur du dioxyde de silicium SiO2 dans l'industrie des semi-conducteurs6 dans le cadre d'une réaction sol-gel. La propriété remarquable du TEOS est en effet de former du SiO2 par simple hydrolyse en libérant de l'éthanol CH3CH2OH :
Si(OCH2CH3)4 + 2 H2O → SiO2 + 4 CH3CH2OH.
Résistance à l'abrasion
Résistance au lavage
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
Sol-gel, Procédé
Solidité de la couleur
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The colour of denim fabric, which has a large share in the textile market, is an important parameter together with comfort properties during usage. While some users prefer the colour of denim fabrics to have different colours as they use them, others want to be provided with colour stability of the fabrics during use. In this study, the effect of a sol-gel technique on indigo dyed denim fabrics was investigated. The aim was to reduce the colour change that occurs in denim fabrics as a result of external factors by using silica-based coatings. The sols were prepared by using TEOS (tetraethylortosilicate) and different volumes of GPTS ((3-glycidyloxypropyl)trimethoxysilane) as precursors in acidic and alkaline conditions. Synthetic indigo dyed cotton denim fabrics were treated with the sols by applying the pad-dry-cure method. It was determined that the colour strength of the treated samples increased and the fabrics treated with the sols prepared in alkaline condition became darker compared to the sols in acidic condition. It is seen that the use of crosslinkers while preparing the sol could improve the rubbing and washing fastness of commercial denim samples. Note de contenu : - MATERIALS AND METHODS : Preparation of the sols and coating process - Testing methods
- RESULTS AND DISCUSSION : SEM analysis - Colour measurements - Rubbing fastness - Wash fastness
- Table 1 : Content of solutions and the sample codes
- Table 2 : Colour difference values of the treated samples
- Table 3 : Rubbing fastness of the samples
- Table 4 : Washing fastness of the samples according to the standardDOI : https://doi.org/10.1111/cote.12521 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12521 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36087
in COLORATION TECHNOLOGY > Vol. 137, N° 3 (06/2021) . - p. 209-216[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22845 - Périodique Bibliothèque principale Documentaires Disponible Effect of the ozonation process on the dyeability of mohair fibres / Riza Atav in COLORATION TECHNOLOGY, Vol. 127, N° 3 (2011)
[article]
Titre : Effect of the ozonation process on the dyeability of mohair fibres Type de document : texte imprimé Auteurs : Riza Atav, Auteur ; Abbas Yurdakul, Auteur Année de publication : 2011 Article en page(s) : p. 159-166 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Laine
Mohair
Ozonation
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This work has focused on the use of ozonation in order to improve the dyeability of mohair fibres. The study was carried out using a known concentration of ozone and involved process parameters such as wet pick-up, level of pH and treatment time. The effect of fibre ozonation was assessed in terms of colour, and test samples were also evaluated using scanning electron microscopy and Fourier transform–infrared spectroscopy. The optimum conditions of the ozonation process were determined as 60% wet pick-up, pH 7 and 30 min. According to the experimental results, it can be concluded that ozonated mohair fibres can be dyed both at 90 and 80 °C with all dye classes without causing any decrease in colour yield. Dyeing kinetics and thermodynamics were also studied and it was demonstrated that the rate constant and the standard affinity of the ozonated sample increased. Note de contenu : EXPERIMENTAL : Materials - Ozone treatment - Fibre dyeability - Alkali solubility - Fourier transform-infrared spectroscopy - Scanning electron microscopy - Fibre dyeability of optimised ozone-treated mohair using different classes of dyes - Kinetic and thermodynamic study.
RESULTS AND DISCUSSION : Optimisation of the ozonation treatment - Effect of the ozonation treatment on fibre dyeability with various dye classes - Effect of the ozonation treatment on dyeing kinetics and thermodynamics.DOI : 10.1111/j.1478-4408.2011.00293.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00293.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12194
in COLORATION TECHNOLOGY > Vol. 127, N° 3 (2011) . - p. 159-166[article]Réservation
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PermalinkEnvironmentally friendly coloration of cotton by the UV-induced photografting of a-bromoacrylamido dyes / Yuanyuan Dong in COLORATION TECHNOLOGY, Vol. 130, N° 4 (08/2014)
PermalinkEthylene glycol diglycidyl ether applied to crosslinking dyeing of cotton fabric with madder dye / Xiaoyu Cai in COLORATION TECHNOLOGY, Vol. 138, N° 4 (08/2022)
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