Adsorption and fixation behaviour of CI Reactive Red 195 on cotton woven fabric in a nonionic surfactant Triton X-100 reverse micelle / Shixiong Yi in COLORATION TECHNOLOGY, Vol. 128, N° 4 (2012)  

[article]  inCOLORATION TECHNOLOGY > Vol. 128, N° 4 (2012) . - p. 306-314 Titre : Adsorption and fixation behaviour of CI Reactive Red 195 on cotton woven fabric in a nonionic surfactant Triton X-100 reverse micelle Type de document : texte imprimé Auteurs : Shixiong Yi, Auteur ; Yongchun Dong, Auteur ; Bing Li, Auteur ; Ding Zhizhong, Auteur ; Xiangbo Huang, Auteur ; Lexing Xue, Auteur Année de publication : 2012 Article en page(s) : p. 306-314 Note générale : Errata (voir URL) - Bibliogr. Langues : Anglais (eng) Catégories : Adsorption Colorants réactifs Coton Le 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). Diffusion (physique) Eau -- Consommation -- Réduction Fixation (chimie) Micelles Surfactants Teinture -- Fibres textiles Tissés Index. décimale : 667.3 Teinture et impression des tissus Résumé : To achieve the goals of saving water and being salt-free in the coloration of cotton fabric with reactive dye, nonionic reverse micelles were prepared and optimised with a surfactant, Triton X-100, n-octanol and isooctane by injecting a small amount of CI Reactive Red 195 aqueous solution. The adsorption, diffusion and fixation of this dye on cotton fabric in Triton X-100 reverse micelle and bulk water were then investigated. The equilibrium and kinetic data of the dye adsorption process were evaluated. The colour strength and fixation rate of cotton fabrics dyed in the micelle and in bulk water were also examined and compared. The results indicated that the amount of dye adsorbed increased with the increasing temperature and the initial dye concentration. The dye adsorption process could be described using the Langmuir isotherm and pseudo-second-order kinetic equations. It was found that CI Reactive Red 195 showed a stronger adsorption property on cotton fabric in Triton X-100 reverse micelle than in bulk water without the addition of sodium chloride. Using Triton X-100 reverse micelle as the dyeing medium offered the reactive dye better diffusion performance within the cotton fibre as compared with bulk water. Moreover, higher fixation of the dyes absorbed on the cotton fibre was achieved when the optimum concentration of sodium carbonate was used as the alkali agent in Triton X-100 reverse micelle. Note de contenu : - EXPERIMENTAL : Materials and reagents - Preparation ot TX-100 reverse micelle - Adsorption and fixation of reactive dye on cotton fabric - RESULTS AND DISCUSSION : Optimisation of TX-100 reverse micelle - Adsorption of reactive dye on cotton fabric - Dye adsorption isotherm studies - Dye absorption kinetics - Dye diffusion within cotton fibre - Dye fixation on cotton fibre DOI : 10.1111/j.1478-4408.2012.00381.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00381.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15680 [article]

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An integrated eco-friendly tanning method for the manufacture of upper leathers from goatskins / Subramanian Saravanabhavan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 4 (07-08/2003)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 87, N° 4 (07-08/2003) . - p. 149-158 Titre : An integrated eco-friendly tanning method for the manufacture of upper leathers from goatskins Type de document : texte imprimé Auteurs : Subramanian Saravanabhavan, Auteur ; Rathinam Aravindhan, Auteur ; Palanisamy Thanikaivelan, Auteur ; B. Chandrasekaran, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balachandran Unni Nair, Auteur Année de publication : 2003 Article en page(s) : p. 149-158 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Coût-Efficacité Cuir -- teneur en chrome Cuirs et peaux de chèvres Déchets -- Réduction Eau -- Consommation -- Réduction Eaux usées -- Analyse Epilage enzymatique Tannage au chrome Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Present leather-making processes cause difficulties, with regard to their perceived environmental impact. Pre-tanning and tanning processes contribute more than 90% of the total pollution load from leather processing. Conventional process methods subject the skin to wide variations in pH. Such pH changes, lead to salt formation which results in a net increase in COD, TDS, chlorides, sulphates and chromium levels in tannery wastewaters. In this study, a three-step process sequence has been explored to limit the pH range in leather processing to between 4.0-8.0. A sequence of operations, viz. enzyme unhairing, NaOH based fibre opening and pickle-less chrome tanning produces leathers matching the functional performance of conventionally processed leathers but leading to substantial environmental benefits in the reduction of COD and total solids by 43 and 70%, respectively. Water consumption for processing is reduced to 17.81/Kg raw hide. The process sequence explored appears to be economically viable. Note de contenu : - EXPERIMENTAL METHODS : - Standardisation of dehairing process - Standardisation of opening up of fibre bundles - Experimental tanning process (E) - Conventional tanning process (C, as followed in India) - EXAMINATION OF THE LEATHERS : - Input-output analysis - Scanning electron microscopic examination - RESULTS AND DISCUSSION : - Standardisation of dehairing system - Standardisation of NaOH for opening up of fibre bundles - INTEGRATED THREE STEP TANNING PROCESS : AN APPRAISAL - Softness measurements - Scanning electron microscopic analysis - Chromium in leather - OBJECTIVE AND SUBJECTIVE METHODS OF EVALUATION OF THE LEATHER - Strength characteristics - Tactile properties - Environmental benefits - Techno-economic viability - INPUT-OUTPUT AUDIT OF THE EXPERIMENTAL AND CONTROL PROCESS control process - Table 1 : Composition of depilatory mixture* for different methods of application - Table 2 : Extent of swelling and cross section pH of the pelts from preliminary fibre opening trials - Table 3 : Compression measurement and gradient data for control (C) and experimental (E) crust Leathers - Table 4 : Comparison of chromium content in wet blue leathers from control (C) and experimental (E) processes - Table 5 : Physical testing data of control (C) and experimental (E) leathers - Table 6 : Composite liquor analysis - Table 7 : Comparison of water requirement and discharge for control (C) and experimental (E) leather processing of 1 kg raw skins - Table 8 : Time and power consumption for the conventional (C) and experimental tanning (E) processes - Table 9 : Cost estimates of the conventional (C) and experimental tanning (E) processes - Table 10 : Input-output audit for both control and experimental process En ligne : https://drive.google.com/file/d/1jxj7vQuxr9IAA_lOPXzd04eZ-44Kkiva/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39771 [article]

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Cleaning and pre-treatment of machine components / Ralf Dürr-Krouzilek in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 6, N° 3 (2013)

[article]  inINTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 6, N° 3 (2013) . - p. 30-31 Titre : Cleaning and pre-treatment of machine components : Flexible, cost-effective and environmentally friendly Type de document : texte imprimé Auteurs : Ralf Dürr-Krouzilek, Auteur Année de publication : 2013 Article en page(s) : p. 30-31 Langues : Anglais (eng) Catégories : Ateliers de peinture industrielle -- Nettoyage Eau -- Consommation -- Réduction Economies d'énergie Hautes pressions Phosphatation Produits chimiques -- Consommation -- Réduction Index. décimale : 667.9 Revêtements et enduits Résumé : New combinations of processes are available for cleaning and pre-treating machine components, which offer environmentally friendly, reliable, low-cost solutions. Note de contenu : - High-pressure cleaning and phosphating in one phase - Significant reductions in use of water, chemicals and energy - Machines designed to meet customer's requirements - Flexible parts transport systems - Existing cleaning systems can be retrofitted Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22805 [article]

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Cleaning more, for less - a sustainable liquid laundry concentrate / Claudia Sturm in SOFW JOURNAL, Vol. 147, N° 11 (11/2021)  

[article]  inSOFW JOURNAL > Vol. 147, N° 11 (11/2021) . - p. 30-34 Titre : Cleaning more, for less - a sustainable liquid laundry concentrate Type de document : texte imprimé Auteurs : Claudia Sturm, Auteur ; Fanélie Jaeglé, Auteur Année de publication : 2021 Article en page(s) : p. 30-34 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Détergents liquides Développement durable Eau -- Consommation -- Réduction Emballages Emballages -- Consommation -- Réduction Formulation (Génie chimique) Lessives Produits chimiques -- Suppression ou remplacement Surfactants Index. décimale : 668.5 Parfums et cosmétiques Résumé : When looking at the current trends within the laundry sector, it is clear, consumers are looking for more sustainable solutions. They are demanding laundry products that can help to reduce consumption of plastic packaging and that will have a longer-term approach to the world’s water scarcity issues. However, the trends in consumption tell a different story. As the use of powdered laundry detergent continues its steady decline, consumers are increasingly turning to the more convenient, but less sustainable, liquid laundry capsules, rather than the liquid laundry option which is remaining flat. At IMCD we have looked at how the formulation of new liquid laundry concentrates can help to meet the consumer demand for ‘greener’ solutions, reduce the amount of packaging and water required and remove the need for more the complicated manufacturing and formulation processes required by PVOH film pods. This article will demonstrate how a 25ml liquid laundry concentrate can maintain comparable cleaning performance and physical stability to liquid capsules from a leading European brand, while using more sustainable raw materials, and providing cost effective choices. The success of this solution will, however, lie with manufacturers to develop a suitably flexible and convenient package to ensure ease and accuracy of use for end-users. Note de contenu : - Our approach - Cleaning performance of various surfactants : Procedure - Results - Obstacles and solutions - From economical to ecological, a proposal for 25 mL liquid laundry concentrates - Table 1 : Stains test - Table 2 : Formulation bases - Table 3 : Test stains - Table 4 : Proposed formulations En ligne : https://drive.google.com/file/d/1YLBtZColoMsXoQt821pgZFf7sL7Mc5ZD/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36991 [article]

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Cleantan - Chromium tanning without chromium and water residues / Manfred Renner in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 8 (08/2013)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 8 (08/2013) . - p. 289-293 Titre : Cleantan - Chromium tanning without chromium and water residues Type de document : texte imprimé Auteurs : Manfred Renner, Auteur ; B. Weidner, Auteur ; H. Geihsler, Auteur Année de publication : 2013 Article en page(s) : p. 289-293 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Déchets -- Réduction Dioxyde de carbone Eau -- Consommation -- Réduction Eaux usées -- Recyclage Pollution -- Lutte contre Tannage au chrome Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Fraunhofer UMSICHT has developed a new chromium tanning process principle to reduce the chromium contaminated sewage water, to save tanning agents and to reduce the process time. The first part of the lecture, given by Manfred Renner, head of business unit, will give a survey of the new tanning principle. The compressed natural gas carbon dioxide is used instead of water for the pickling and the tanning process. The use of different pressure ranges gives the possibility to control the pH value without using chemicals. A free from water and free from salt pickle is possible. The use of chromium can be controlled precisely and it is possible to use only as much chromium as can be fixed in the collagenic matrix. The lecture will show results achieved with technical- and preindustrial scale (650 kg split weight per batch) high-pressure equipment. Using carbon dioxide 14 million liters of chromium contaminated sewage water in the tanning process, 20 billion liters of sewage water to produce the tanning agents, 160 000 tons of chromium and 500 000 tons of salt could be saved regarding the worldwide market. The second part of the lecture, given by Prof. Dr. Weidner, head of the Fraunhofer Institute UMSICHT, will focus on the strategy of how to enter the market. For the prospective customers it will give the opportunity to see if the technology fits their companies and their main OEM customers. It will also be shown how easy the new equipment can be implemented in a running tannery. Note de contenu : - INTRODUCTION : CO2-intensified tanning process - MATERIAL AND METHODS : Tanning solutions - Skin - Quality assessment - 20 L high pressure tanning bin - 1,700 L high pressure tanning bin - RESULTS : Chromium tanning under CO2-pressure as function of pressure and contact time - Tanning free of chromium contaminated wastewater - Influence of pressure using a minimum of chemicals for different parts of skin En ligne : https://drive.google.com/file/d/1-d17RlqCNh6WqXqNgZZ1rOpGjzkazSDQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19177 [article]

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Closed-loop processing : management in existing tanneries and new-builds designed for purpose / Richard Daniels in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 12 (12/2019)  

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Colour matching for smart and sustainable spinning of coloured textiles / Ruiha Yang in COLORATION TECHNOLOGY, Vol. 136, N° 3 (06/2020)  

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Commission technique tannerie-mégisserie / Françoise Nicolas in CTC ENTREPRISES, N° 8 (10/2008)  

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Design of scaffolds for biopelt from tanning sector by-products / Silvia Sorolla in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 5 (09-10/2010)  

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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)  

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Energy-efficient production of hydroentangled nonwovens / Joachim Binnig in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 2 (06/2017)  

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Influence of liquor ratio and amount of dyestuff in producing ultradeep black dyeing using mercerised and cationised cotton / Sha Fu in COLORATION TECHNOLOGY, Vol. 132, N° 3 (06/2016)  

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Investigation into deep eutectic solvents / Andrew Abbott in LEATHER INTERNATIONAL, Vol. 217, N° 4860 (05/2016)  

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Lite Hide / Maxime Jouineau in CTC ENTREPRISES, (12/2022 - 01/2023)  

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Lower consumption and higher quality / Olivier Bolk in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 7, N° 3 (2014)

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Maîtrise des consommations d'eau en Tannerie-Mégisserie / Marie-Laure Touloumet in CTC ENTREPRISES, (03-04/2009)  

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A method to improve the performance of wide dye concentration measurement based on the multi-pathlength spectrophotometry / Venkatesh Bairabathina in COLORATION TECHNOLOGY, Vol. 138, N° 4 (08/2022)  

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No heavy metals, no heating and small quantities of sludge / Tobias Distler in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 6, N° 3 (2013)

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Process-integrated plant cleaning - new impulses / Sebastian Immel in EUROPEAN COATINGS JOURNAL (ECJ), N° 2 (02/2022)  

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Recycling in goat skin lime unhairing / A. Crispim in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 2 (03-04/2011)  

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