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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)
Titre de série : Cuir Titre : Essais de solidité des coloris - Solidité des coloris au frottement en va-et-vient - Norme NF EN ISO 11640 Type de document : texte imprimé Auteurs : International Organization for Standardization (Genève, Suisse) , Auteur Editeur : Geneve [Switzerland] : International Organization for Standardization (ISO) Année de publication : 2017 Importance : Pagination multiple Format : 30 cm Prix : 37 E Langues : Français (fre) Catégories : Cuirs et peaux -- Normes
Frottements (mécanique)
Résistance à l'abrasion
Solidité de la couleurIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : La présente Norme internationale spécifie une méthode permettant de déterminer le comportement de la surface d'un cuir soumise à un frottement avec du feutre de laine. Elle s'applique à toutes les sortes de cuir. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29057 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19132 ISO 11640 Norme Bibliothèque principale Documentaires Disponible
[article]
Titre : Current developments : Waterbased fluorourethanes evaluated as wind turbine blade topcoats Type de document : texte imprimé Auteurs : Mehdi Durali, Auteur ; Kurt A. Wood, Auteur ; Dante Battocchi, Auteur ; Mark Hatzenbeller, Auteur Année de publication : 2011 Article en page(s) : p. 30-34 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eoliennes -- Revêtements protecteurs
Pales d'éoliennes
Polyacryliques
Polyfluorure de vinylidène
Polyisocyanates
Résistance à l'abrasion
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The excellent weathering properties of PVDF-acrylic hybrid emulsion coatings can be enhanced especially in terms of solvent and abrasion resistance by using hydroxy-functional acrylics crosslinked with water-dispersible polyisocyanates. Initial results from a programme to develop topcoat paints for the very demanding market of wind turbine blade coatings are described. Note de contenu : - Waterborne systems match performance of solventbornes
- Crosslinking systems give further benefits
- Fast physical drying can be obtained
- A promising technology for window profile
- Severe artificial weathering test shows good results
- A challenging market : wind turbine blade coatings
- Customised test procedures for wind turbine coatings
- Crosslinked systems offer high allround performance.En ligne : https://drive.google.com/file/d/1rS24isgTse4B7kgiaGxwF0AJEpojlcRh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12099
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 10 (10/2011) . - p. 30-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13349 - Périodique Bibliothèque principale Documentaires Disponible Deep learning-based automated characterization of crosscut tests for coatings via image segmentation / Gaoyuan Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)
[article]
Titre : Deep learning-based automated characterization of crosscut tests for coatings via image segmentation Type de document : texte imprimé Auteurs : Gaoyuan Zhang, Auteur ; Christian Schmitz, Auteur ; Matthias Fimmers, Auteur ; Christoph Quix, Auteur ; Sayed Hoseini, Auteur Année de publication : 2022 Article en page(s) : p. 671-683 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Analyse d'imageL'analyse d'image est la reconnaissance des éléments contenus dans l'image. Il ne faut pas confondre analyse (décomposition en éléments) et traitement (action sur les composantes) de l'image.
Analyse de dommages (matériaux)
Autoapprentissage
Automatisation
Caractérisation
Enrobage (technologie)
Essais de quadrillage
Imagerie (technique)
Logiciels
Rayures
Résistance à l'abrasion
Revêtements -- Détérioration
Surfaces (Physique)Index. décimale : 667.9 Revêtements et enduits Résumé : A manual scratch test to measure the scratch resistance of coatings applied to a certain substrate is usually used to test the adhesion of a coating. Despite its significant amount of subjectivity, the crosscut test is widely considered to be the most practical measuring method for adhesion strength with a good reliability. Intelligent software tools help to improve and optimize systems combining chemistry, engineering based on high-throughput formulation screening (HTFS) technologies and machine learning algorithms to open up novel solutions in material sciences. Nevertheless, automated testing often misses the link to quality control by the human eye that is sensitive in spotting and evaluating defects as it is the case in the crosscut test. In this paper, we present a method for the automated and objective characterization of coatings to drive and support Chemistry 4.0 solutions via semantic image segmentation using deep convolutional networks. The algorithm evaluated the adhesion strength based on the images of the crosscuts recognizing the delaminated area and the results were compared with the traditional classification rated by the human expert. Note de contenu : - BACKGROUND : Neural networks - Convolutional neural networks and image segmentation tasks
- SOLUTION APPROACH AND EXPERIMENTAL SETUP : Sample preparation - Automated crosscutting - Data preprocessing - Data augmentation - Architectures Loss functions
- EVALUATION : Training - Results
- Table 1 : Summary of the applied data augmentation methods
- Table 2 : Confusion matrices of the various models being applied for the segmentation into delaminated and intact area
- Table 3 : Comparison between human and algorithmic rating for samples selected across all six levels defined in the norm
- Table 4 : Mean Dice coefficient in % calculated over all 31 test images with standard deviation, inference time for the test set and the number of parameters for each model paired with each of the different lossesDOI : https://doi.org/10.1007/s11998-021-00557-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00557-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37296
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 2 (03/2022) . - p. 671-683[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23408 - Périodique Bibliothèque principale Documentaires Disponible Determining the effect of enzymatic pretreatment on the low temperature dyeability of polyamide fabrics in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)
[article]
Titre : Determining the effect of enzymatic pretreatment on the low temperature dyeability of polyamide fabrics Type de document : texte imprimé Année de publication : 2023 Article en page(s) : p. 109-116 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Basses températures
Colorants -- Adsorption
Colorants métalliques
Complexes métalliques
Elasthanne
Fourier, Spectroscopie infrarouge à transformée de
Microscopie électronique à balayage
Polyamide 6
Résistance à l'abrasion
Résistance à l'éclatement
Résistance au lavage
Solidité de la couleur
Teinture -- Fibres textiles synthétiques
Traitement enzymatique
TricotIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, by pretreating polyamide 6/elastane knitted fabrics with serine-type protease enzyme, the aim was to reduce dyeing temperatures. It is known that the elasticity of elastane fibres is damaged in dyeing at high temperatures. On the other hand, to enable efficient dyeing, it is necessary to use boiling temperatures in synthetic fibres such as polyamide, or even mild high temperature conditions, to support more uniform dyeing. Protease enzymes are enzymes that hydrolyse amide bonds, and consequently, new amine and carboxyl groups are released in fibre macromolecules, resulting in an increase in the functional group content to which anionic dyes can bind. In this study, to compensate for the loss of colour yield caused by lowering the dyeing temperature, an increase in the functional groups was provided by enzymatic pretreatment. For this purpose, the fabrics were pretreated with a commercial serine-type protease enzyme then dyed with 1:2 metal complex dyes at different temperatures. The effects of enzymatic pretreatment on colour, fastness, fibre surface characteristics and fabric strength were investigated. Note de contenu : - Enzymatic pretreatment
- Determination of dye uptake values
- Determination of colour yield and CIELab values
- Determination of colour fastness to washing
- Determination of colour fastness to rubbing
- Bursting strength - Fourier Transform-infrared spectroscopy analysis
- Scanning electron microscopy analysis
- Table 1 : Analysis of variance results related to the effects of dyeing temperature, enzymatic process and dye type on the colour yield
- Table 2 : Scanning electron microscopy photographs of enzymatically treated and untreated samples (x 2000 magnification)
- Table 3 : Washing and water fastness values of dyeing
- Table 4 : Acidic and alkali perspiration fastness values of dyeing
- Table 5 : Dry and wet rubbing fastness values of dyeingDOI : https://doi.org/10.1111/cote.12637 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12637 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39209
in COLORATION TECHNOLOGY > Vol. 139, N° 1 (02/2023) . - p. 109-116[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24084 - Périodique Bibliothèque principale Documentaires Disponible Development of natural colours in Cr-Fe tanned garment leathers / J. R. Rao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 3 (05-06/2002)
[article]
Titre : Development of natural colours in Cr-Fe tanned garment leathers Type de document : texte imprimé Auteurs : J. R. Rao, Auteur ; Palanisamy Thanikaivelan, Auteur ; J. Malathi, Auteur ; R. Rajaram, Auteur ; Balachandran Unni Nair, Auteur Année de publication : 2002 Article en page(s) : p. 106-111 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acacia et constituants
chataigner et constituants
Chrome
Colorimétrie
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Propriétés physiques
Cuirs et peaux -- Teinture
Fer
Myrobalan et constituants
QuebrachoLe quebracho est un arbre à écorce ligneuse, mesurant 30 mètres de haut, à feuilles tannées et à fleurs tubulées blanches.
Quebracho est l'un des noms communs, en espagnol, d'au moins trois espèces similaires d'arbres originaires du Gran Chaco, en Amérique latine : Schinopsis lorentzii (quebracho colorado santiagueño), de la famille des Anacardiaceae ; Schinopsis balansae (quebracho colorado chaqueño), de la même famille ;
Aspidosperma quebracho-blanco (quebracho blanc), de la famille des Apocynaceae.
Ces trois espèces sont riches en tanin et fournissent un bois très dur, particulièrement résistant. Leur nom provient de l'espagnol quiebrahacha, qui signifie brise-hache.
Réflectance
Résistance à l'abrasion
Tanins végétaux
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Vêtements en cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Dyes based on synthetic formulations are widely used in the leather industry, however, many aryl amine dyes are restricted due to their carcinogenic nature. Environmental concern leads one to look for the dye products based on natural resources, which may have advantages of biodegradability and lower toxicity. We aimed to create an eco-friendly dyeing process by forming in-situ complexes between vegetable tannins and the Cr-Fe tanning salt, where the use of iron salts results in various colours on reaction with various vegetable tannins. Sheepskins were tanned using the Cr-Fe tanning salt and treated with various vegetable tanning materials, brown, black and grey shades were developed. The shades obtained have been quantified by reflectance measurements and compared by visual assessment.
Strength characteristics of the leathers treated with 5% vegetable tannins are higher than those treated with 1% tannins, bulk properties not being affected with the increase in concentration from 1 to 5%. The light, wet and dry rub fastness of the naturally coloured leathers are good with no change on ageing. Colour reproduction at bulk level production is acceptable with minor batch variations.Note de contenu : - EXPERIMENTAL DETAILS : Process details for larger scale trials - Physical testing
- RESULTS AND DISCUSSION : Wattle - Chestnut - Myrobalan - Quebracho - Environmental Perception
- Table 1 : Percentage reflectance measurement for garment leathers coloured with various concentrations of wattle
- Table 2 : Visual assessment data of the garment samples treated with various concentrations of wattle (Grade points 0-poor and 10-very good)
- Table 3 : Visual assessment data of the garment samples treated with various concentrations of chestnut (Grade points 0-poor and 10-very good)
- Table 4 : Visual assessment data of the garment samples treated with various concentrations of myrobalan (Grade points 0-poor and 10-very good)
- Table 5 : Percentage reflectance measurement for garment leathers coloured with various concentrations of quebrancho
- Table 6 : Visual assessment data of the garment samples treated with various concentrations of quebracho (Grade points 0-poor and 10-very good)
- Table 7 : Strength characteristics for various crust garment leathers
- Table 8 : Visual assessment data for garment leathers treated with selected concentrations of vegetable tannins
- Table 9 : Fastness of the naturally coloured leathers treated with selected concentration of vegetable tannins to wet, dry rubbing and artificial light
- Table 9 : Comparison of colour measurements data between the sample and bulk colouration of leathers using selected concentration vegetable tanninsEn ligne : https://drive.google.com/file/d/1cy6baDBVvluD26gKPLzG7iFzZjo83l1w/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39924
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 86, N° 3 (05-06/2002) . - p. 106-111[article]Durability of vitreous enamel coatings and their resistance to abrasion, chemicals, and corrosion : a review / Stefano Rossi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 1 (01/2021)
PermalinkDurable water-borne wood coatings / Peter Greenwood in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2018)
PermalinkDyeing of chamois leather using water soluble sulphure dyes / A. Jaya Prakash in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 10 (10/2016)
PermalinkEco-friendly leather dyeing using ultrasound technique / Mohamed Abu Sayid Mia in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 6 (06/2020)
PermalinkEffect of graphene, SiO2 and zeolite powder on the mechanical and scratch properties of PP / X.-L. Du in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 1 (2021)
PermalinkEffect of grey component replacement processing and varnishing on the light fastness of colours on cardboard prints / Tomislav Cigula in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)
PermalinkEffect of nano polytetrafluoroethylene on epoxy melamine coating / S. S. Ramteke in SURFACE COATINGS INTERNATIONAL, Vol. 95, 3 (05/2012)
PermalinkEffect of nanosilica and Zno nanoparticles / Anabel Crespo Soler in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4608 (05/2015)
PermalinkEffect of pigment colour on the printing performance of synthetic leather using a ultraviolet-curable water-borne polyurethane acrylate binder / Gülçin Baysal in COLORATION TECHNOLOGY, Vol. 135, N° 4 (08/2019)
PermalinkEffect of polysiloxane additives on the scratch resistance of an acrylic melamine automotive clearcoat / Bahram Ramezanzadeh in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 2 (03/2012)
PermalinkEffect 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)
PermalinkEffects of ozone treatment on denim garment properties / Abir Ben Fraj in COLORATION TECHNOLOGY, Vol. 137, N° 6 (12/2021)
PermalinkElectrospun core-shell nanofibers potential for wound dressing / Cheng Feng in CHEMICAL FIBERS INTERNATIONAL, Vol. 64, N° 1 (03/2014)
PermalinkEliminating PTFE from packaging coatings / Gehan Eltanany in EUROPEAN COATINGS JOURNAL (ECJ), (10/2023)
PermalinkLes encres à l'heure des nanotechnologies / Clément Delorme in GALVANO ORGANO, N° 827 (03/2014)
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