An approach to sustainable coloration of lyocell fabrics by screen printing using extracts of leaves and bark from eucalyptus / Dawn L. Ellams in COLORATION TECHNOLOGY, Vol. 130, N° 1 (02/2014)  

[article]  inCOLORATION TECHNOLOGY > Vol. 130, N° 1 (02/2014) . - p. 48-53 Titre : An approach to sustainable coloration of lyocell fabrics by screen printing using extracts of leaves and bark from eucalyptus Type de document : texte imprimé Auteurs : Dawn L. Ellams, Auteur ; Robert M. Christie, Auteur ; Sarah Robertson, Auteur Année de publication : 2014 Article en page(s) : p. 48-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alun Colorants végétaux Eucalyptus et constituants Extraction (chimie) Fibres cellulosiques Frottements (mécanique) Mordançage (teinture) Photostabilité Résistance au lavage Sérigraphie Teinture -- Fibres textiles Textiles et tissus -- Propriétés mécaniques Textiles et tissus imprimés Index. décimale : 667.3 Teinture et impression des tissus Résumé : This paper presents an initial study from a more extensive programme of research at the design/technology interface that is focused on the use of design methodology as a means to lower the environmental impact of fashion clothing. The leaves and bark that are by products of the responsibly farmed eucalyptus used in the manufacture of lyocell fibres were extracted with water to provide a source of natural colour. Lyocell fabric, which required minimal preparation, was screen printed with an aqueous paste containing only the extracted colour and a natural thickener to provide attractive golden-yellow prints. The printed fabrics demonstrated surprisingly good fastness towards light, washing and rubbing. A mordanting pretreatment of the lyocell with alum modified the colour of the naturally coloured prints to become stronger and duller, but provided no advantage in terms of technical performance. The outcome presents a potentially useful model for the development of sustainably coloured fashion textile products. Note de contenu : - Material - Dye extraction - Fabric pretreatment - Mordanting - Screen printing - Assessment DOI : 10.1111/cote.12056 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12056 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20359 [article]

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An experimental study on the role of manufacturing parameters on the dry sliding wear performance of additively manufactured PETG / Berkay Ergene in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 3 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 3 (2022) . - p. 255-270 Titre : An experimental study on the role of manufacturing parameters on the dry sliding wear performance of additively manufactured PETG Type de document : texte imprimé Auteurs : Berkay Ergene, Auteur ; Cagin Bolat, Auteur Année de publication : 2022 Article en page(s) : p. 255-270 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Frottements (mécanique) Impression tridimensionnelle Matériaux -- Epaisseur Mesure Polyéthylène téréphtalate glycol Taux de remplissage (technologie) Tribologie (technologie) Usure (mécanique) Index. décimale : 668.9 Polymères Résumé : Additive manufacturing (AM) is a versatile and promising method for rapid prototyping and advanced design applications. Owing to its unique potential for fast production rates, and capacity of creating complex shapes, the number of researches on AM techniques have increased day by day in the technical literature. In this work, contrary to common literature efforts focused on mechanical properties, friction and wear behaviors of additively manufactured PETG samples were analyzed experimentally. As a methodology, fused filament fabrication (FFF) was selected. In order to explore the influence of manufacturing factors on wear properties, layer thickness (0.1, 0.2, and 0.3 mm), infill rate (40, 60, 80, and 100%), and building direction (vertical and horizontal) were changed. Before the friction tests, dimensional accuracy, hardness, and surface roughness measurements were conducted to interpret better the wear results. In addition, macroscopic and microscopic inspections were performed to determine the correct reason behind the deformation. From the data collected during the tests, there was a positive interaction between volume loss and layer thickness. Besides, there was no direct interaction between infill rate/building direction and coefficient of friction. In comparison with vertically built samples, horizontally built samples were subjected to more plastic deformation, and their worn surfaces were severely damaged. Note de contenu : - MATERIAL AND METHODOLOGY : Filament material and manufacturing - Dimensional accuracy measurements - Hardness measurements - Surface roughness measurements - Wear test procedure - RESULTS AND DISCUSSION : Dimensional accuracy - Hardness - Surface roughness - Tribological properties - Wear mechanisms - Table 1 : Material properties of PETG filament - Table 2 : 3D printing process parameters - Table 3 : The average accuracy percentage obtained from dimensional measurements of cylindrical sample DOI : https://doi.org/10.1515/ipp-2021-0015 En ligne : https://drive.google.com/file/d/12N5Uiq-s3wa6d0OOg1JqCYh_QpvMA-b5/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37905 [article]

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Analytical model for the throughput and drive power calculation in the melting section of single screw plasticizing units considering wall-slippage / H. Potente in INTERNATIONAL POLYMER PROCESSING, Vol. XXIV, N° 1 (03/2009)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXIV, N° 1 (03/2009) . - p. 23-30 Titre : Analytical model for the throughput and drive power calculation in the melting section of single screw plasticizing units considering wall-slippage : Part 1 : Wall-slippage in the melt film Type de document : texte imprimé Auteurs : H. Potente, Auteur ; M. Bornemann, Auteur ; M. Kurte-Jardin, Auteur Année de publication : 2009 Article en page(s) : p. 23-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Couches minces Films plastiques Frottements (mécanique) Matières plastiques -- Extrusion Polymères Index. décimale : 668.9 Polymères Résumé : In single-screw extrusion the simulation of the plasticizing process by means of software tools becomes more and more important. These programs need mathematical models that have to be improved continuously to simulate the process values realistically. A two-part article presents an analytical approach to calculate the pressure/throughput and drive power behaviour of wall-slipping polymers in the melting section of single-screw plasticizing units. The investigations that are conducted are based on the notion commonly found in the literature of a melt film forming between the barrel and a compact solid bed, with the simultaneous development of a melt pool. As boundary condition for describing the wall slippage, a critical shear stress, as of which a slippage process commences, and also a slippage-velocity-dependent shear stress is assumed. In this first part of the publication, the investigations focus on the processes that take place in the melt film. A new model is developed for describing the process behaviour in this area. DOI : 10.3139/217.2163 En ligne : https://drive.google.com/file/d/1NFmuwpGWyKyi7GsHPLV8GWMqJwEr939O/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4204 [article]

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Analytical model for the throughput and drive power calculation in the melting section of single screw plasticizing units considering wall-slippage / H. Potente in INTERNATIONAL POLYMER PROCESSING, Vol. XXIV, N° 1 (03/2009)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXIV, N° 1 (03/2009) . - p. 31-40 Titre : Analytical model for the throughput and drive power calculation in the melting section of single screw plasticizing units considering wall-slippage : Part 2 : Wall-slippage in the melt pool and coupling of the system Type de document : texte imprimé Auteurs : H. Potente, Auteur ; M. Bornemann, Auteur ; M. Kurte-Jardin, Auteur Année de publication : 2009 Article en page(s) : p. 31-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Couches minces Films plastiques Frottements (mécanique) Matières plastiques -- Extrusion Polymères Index. décimale : 668.9 Polymères Résumé : A two-part article presents a process model developed at the KTP for describing the pressure/throughput and drive power behaviour of wall-slipping polymers in the melting section of single-screw plasticizing units. After a new model for describing the flow behaviour in the melt film was developed in the first part of the paper, this second part now covers the adaptation of an existing process model for pure melt conveyance to allow for the processes that take place in the melt pool, and the extension of the model to include the drive power calculation. Following this, the two individual models are then coupled through the assumption of a constant pressure gradient in the conveying direction. Using the overall model that is generated, the pressure/throughput and power behaviour during melting are investigated on the basis of the influencing dimensionless variables. This requires the geometry of the solid bed and the solid bed velocity to be specified as input variables. Apart from this, the other material parameters that need to be defined are the viscosity of the polymer melt, the critical shear stress, a material-specific parameter for describing the slipping-velocity-dependent shear stress and the operating point of the process that is taken as a basis. DOI : 10.3139/217.2164 En ligne : https://drive.google.com/file/d/1feemEa9GlLS8s0gso6jb7AjmJ11yozde/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4205 [article]

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Application and properties of modified wook keratin composites as film-forming agent for leather finishing / Zeng Chunhui in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 6 (11-12/2014)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 98, N° 6 (11-12/2014) . - p. 269-274 Titre : Application and properties of modified wook keratin composites as film-forming agent for leather finishing Type de document : texte imprimé Auteurs : Zeng Chunhui, Auteur ; Qi Lu, Auteur Année de publication : 2014 Article en page(s) : p. 269-274 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Allongement à la rupture Composites Couches minces -- Propriétés mécaniques Cuirs et peaux -- Finition Ethanedial L'éthanedial ou glyoxal est un composé organique de formule brute C2H2O2 et de formule semi-développé O=CH-CH=O. Ce liquide de couleur jaune est le plus petit dialdéhyde existant. C'est aussi une forme tautomère de l'éthynediol (HO–C≡C–OH) . Frottements (mécanique) Hydroxyméthyle cellulose de sodium Laine Mélanges (chimie) Perméabilité Réticulation (polymérisation) Solutions (chimie) Traction (mécanique) Vapeur d'eau Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A series of wool keratin/hydroxymethyl cellulose sodium (CMCNa/glyoxal composite membranes were prepared via solution blending and cross linking modification technology. The optimization of composite films preparation was critically investigated via orthogonal experimental design. Experimental results indicated that the cross-linking agent had a greater effect on the mechanical properties of films. Under the optimal condition (keratin/CMCNa weight ratio : 5.5, 0.3% glyoxal, reaction time : 1h, reaction temperature: 37°C), the composite membrane showed good tensile strength and maximum elongation, which can be used as film-forming agent in leather finishing. Moreover, in contrast to casein, the application properties of the leather finished by modified keratin composite film were measured : tensile strength increased by 11.3%, elongation at break improved by 25.7% as well as water vapour permeability by 3.76 %, and wet rub resistance fastness improved from 3 to 4. However, air permeability decreased by 15.1%. SEM and FTIR analysis verified that it has good compatibility, strong hydrogen bonds and covalent bonds formed between cross-linking agent and raw material molecules. The product might be great potentiel for application in leather finishing as film-forming agent instead of casein. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation of wool keratin solution - Preparation of wool keratin/CMCNa/glyoxal composite membranes - Measurement of mechanical properties - Characterization - Application of modified wool keratin composite film in leather finishing - Determination of applied properties - RESULTS AND DISCUSSION : SEM analysis - FTIR analysis - Orthogonal experiment results - Influence of cross-linking agent on mechanical properties - Application testing En ligne : https://drive.google.com/file/d/1c5sNuqn9PQQCfw14uv6Ac4lbu0gDH0uN/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22649 [article]

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Application of Taguchi – PCA/GRA method to optimize the wear behaviour of polyester/carbon fibre composites / Naga Venkata Sai Ram Yellapragada in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 33, N° 2 (04/2023)  

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Applications of natural dye from Ixora coccinea L. in the field of textiles and cosmetics / Nital N. Patil in COLORATION TECHNOLOGY, Vol. 132, N° 1 (02/2016)  

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Aspects microscopiques de l'action des réducteurs de frottement en lubrification limitée / Jean-Louis Mansot / 1982

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Balancing performance of slip/mar additives using a high throughput approach / Mark Langille in COATINGS TECH, Vol. 15, N° 5 (05/2018)  

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BEPD (2-butyl-2-ethyl-1, 3-propanediol). A branched diol for high performing polyesters for coil coatings in PAINTINDIA, Vol. LXIII, N° 10 (10/2013)

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Ces polymères qui améliorent l'efficacité des transmissions / Jürgen Reinert in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 900 (01-02/2013)

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Chromic textiles : Colour fastness properties and irreversible colour change behaviour of textiles screen printed with thermochromic, photochromic and hydrochromic colourants / Isabel Cabral in COLORATION TECHNOLOGY, Vol. 139, N° 2 (04/2023)  

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Cuir. Essais de solidité des coloris - Solidité des coloris au frottement en va-et-vient - Norme NF EN ISO 11640 / International Organization for Standardization (Genève, Suisse) / Geneve [Switzerland] : International Organization for Standardization (ISO) (2017)

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Designing for free flow / Jamie Clayton in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2017)  

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Determination of parameters which influence the measurement of leather's surface friction / A. J. Long in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 3 (05-06/2000)  

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Durée de vie des curseurs / Benjamin Reiners in L'INDUSTRIE TEXTILE, N° 1370-1371 (05-06/2005)  

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Dyeing method and properties of polymaleic acid dyes on cotton in COLORATION TECHNOLOGY, Vol. 129, N° 2 (04/2013)  

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Dyeing properties of natural leather using red natural dyes / Sang Chul Lee in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 6 (11-12/2014)  

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Ecoulements denses de grains sous gravité / J. Rajchenbach in RHEOLOGIE, Vol. 7 (03/2005)  

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Effect of addition of carboxymethy cellulose (CMC) on the rheology and flow properties of bentonite suspensions / Abdelhakim Benslimane in APPLIED RHEOLOGY, Vol. 23, N° 1 (2013)

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