Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
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]Driving improvements in NIR management / Paul Brown in EUROPEAN COATINGS JOURNAL (ECJ), N° 5 (05/2021)
[article]
Titre : Driving improvements in NIR management : A functional black pigment innovation for high-performance NIR-management solutions Type de document : texte imprimé Auteurs : Paul Brown, Auteur ; Jana Heiler, Auteur Année de publication : 2021 Article en page(s) : p. 22-27 Langues : Anglais (eng) Catégories : Noir (couleur)
PérylèneLes pérylènes sont des pigments organiques de synthèse.
Ils permettent de produire des nombreux rouges : clair (PR123), moyens (PR178, PR149) et sombres (PR179, PR190, PR224, PV29) ainsi qu'un noir (PBk31).
Ils sont appréciés pour leur transparence.
RéflectanceIndex. décimale : 667.9 Revêtements et enduits Résumé : LiDAR technology found in autonomous driving systems uses NIR reflection to identify and locate objects in the vehicle's 3D environment. Objects, coloured or shaded using carbon-black pigments, intensely absorb NIR radiation, resulting in less NIR reflection difficulties. By use of a new perylene black pigment to replace carbon black, NIR reflectivity can be improved while maintaining coloristic performance. Note de contenu : - Pigment type influences NIR reflectivity
- NIR management in autunomous driving
- And in coating systems
- Avoiding carbon black
- Improved reflectivity
- Measuring angular dependency of reflected NIR
- Colouristic challenges of NIR-reflective automotive formulations
- Better black values
- Improved neutral colouristic
- Superior TSR and reflectivity
- Table 1 : Masstone black coating parameters lightness (L*) and black values (Mc and My)
- Table 2 : Reflectance parameters for black pigments measured with an Agilent Cary 5000 UV/Vis/NIR spectrophotometer fitted with an integration sphrere detector. All masstone coatings applied over reflective white substrateEn ligne : https://drive.google.com/file/d/1M-xUrumMh13MiySEww3l4N_d2Rs4jovQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35853
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 5 (05/2021) . - p. 22-27[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 22759 - Périodique Bibliothèque principale Documentaires Disponible Effect of heat treatment on the optical properties of sol–gel-derived, fully dielectric solar control coatings on glass / S. Manasa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)
[article]
Titre : Effect of heat treatment on the optical properties of sol–gel-derived, fully dielectric solar control coatings on glass Type de document : texte imprimé Auteurs : S. Manasa, Auteur ; R. Subasri, Auteur Année de publication : 2016 Article en page(s) : p. 623-628 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diélectriques
Dioxyde de titane
Réflectance
Revêtements -- Propriétés optiques
Sol-gel, Procédé
Traitement thermique
Verre
ZéolitesIndex. décimale : 667.9 Revêtements et enduits Résumé : TiO2 and zeolite were used as high index and low index dielectric materials respectively to generate fully dielectric solar control coatings on glass. TiO2|Zeolite|TiO2 trilayer stacks as well as single layer TiO2 and zeolite coatings were generated on soda lime glass substrates using dip-coating technique. The coatings were densified at 450°C in air using a conventional muffle furnace and a conveyorized belt furnace with a total cycle time of 330 and 30 min, respectively, per layer. The effect of heat-treatment time on the optical properties of multilayered and single-layered coatings was studied. Spectroscopic ellipsometric analysis was carried out on individual layers of the stack to elucidate thickness, roughness, and refractive index data. The ellipsometry data were subsequently used as inputs to simulate the UV–Vis–NIR transmittance spectra of the trilayer stacks generated by TFCalc® software, for comparison with experimentally obtained data. The morphology and phase compositions of the coatings were studied using scanning electron microscopy and grazing angle incidence X-ray diffraction analysis. Different heat treatment schedules were found to result in different optical properties. The results from the present study could be used to recommend suitable heat treatment schedules for generating solar control coatings that could be used for either architectural or automotive applications. DOI : 10.1007/s11998-015-9755-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9755-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26743
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 4 (07/2016) . - p. 623-628[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18223 - Périodique Bibliothèque principale Documentaires Disponible Effect of TiO2 on visual shielding property of PET filaments / Liu Zhaolin in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 2 (06/2021)
[article]
Titre : Effect of TiO2 on visual shielding property of PET filaments Type de document : texte imprimé Auteurs : Liu Zhaolin, Auteur ; Ni Wang, Auteur Année de publication : 2021 Article en page(s) : p. 89-91 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse spectrale
Dioxyde de titane
Fibres textiles synthétiques
FilamentsFibre de longueur infinie ou extrême comme celle qu'on trouve dans la soie à l'état naturel. Les fibres manufacturées sont extrudées en filaments qui sont transformés en fils continus, en fibres courtes ou en câbles.
Polyéthylène téréphtalate
Réflectance
Transmission lumineuseIndex. décimale : 677.4 Textiles artificiels Résumé : Polyethylene terephthalate (PET) filaments were produced by adding various weight percentages of TiO2 at the draw ratios of 3.5 and 4.0, respectively. The effect of TiO2 on visual shielding property of the PET filaments was investigated by the spectroscopy measurement. The results indicate that the light reflectance of the PET filaments shows a rising trend and the light transmittance decreases with the increase of the TiO2 weight percentage at both the draw ratios, which facilitates the enhancement of visual shielding property effectively. Furthermore, the variations of the light reflectance and light transmittance are more obvious when the TiO2 weight percentage ranges from 0-3 wt.% compared with those within the TiO2 weight percentage of 3-9 wt.%, suggesting that the improvement of the visual shielding property slows clown as the weight percentage of TiO2 increases. Note de contenu : - EXPERIMENTAL : Preparation of the PET filaments - Measurements
- RESULTS AND DISCUSSION : Compensation testing method of the visual shielding property
- Light reflection spectra of the PET filaments
- Light transmission spectra of the PET filaments
- Fig. 1 : Sample preparation
- Fig. 2 : Influence of the slide on light reflectance and light transmittance of the PET filaments, light reflectance and light transmittance
- Fig. 3 : Light reflection spectra of the PET filaments with different weight percentages of TiO2 The draw ratio is respectively : 3.5 and 4.0
- Fig. 4 : Light transmission spectra of the PET filaments with different weight percentages of TiO2 The draw ratio is respectively : 3.5 and 4.0
- Table : Production parameters of the PET filamentsEn ligne : https://drive.google.com/file/d/1pwNQJ-M39jh2YuYYWWuO71mkpLAzu-4q/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35967
in CHEMICAL FIBERS INTERNATIONAL > Vol. 71, N° 2 (06/2021) . - p. 89-91[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 22776 - Périodique Bibliothèque principale Documentaires Disponible Effect of TiO2 on visual shielding property of PET filaments / Liu Zhaolin in CHEMICAL FIBERS INTERNATIONAL, (10/2021)
[article]
Titre : Effect of TiO2 on visual shielding property of PET filaments Type de document : texte imprimé Auteurs : Liu Zhaolin, Auteur ; Ni Wang, Auteur Année de publication : 2021 Article en page(s) : p. 27-29 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse spectrale
Dioxyde de titane
FilamentsFibre de longueur infinie ou extrême comme celle qu'on trouve dans la soie à l'état naturel. Les fibres manufacturées sont extrudées en filaments qui sont transformés en fils continus, en fibres courtes ou en câbles.
Mesure
Polyéthylène téréphtalate
Réflectance
Revêtements protecteurs
TransmittanceLa transmittance, en général, est le rapport caractérisant la transmission d'une grandeur dans un système. Elle se calcule par le rapport entre la grandeur en entrée et en sortie.
En optique, la transmittance d'un matériau ou d'un filtre est la fraction du flux lumineux le traversant. Elle est également nommée facteur de transmission mais aussi transparence dans le domaine de la photographie.Index. décimale : 677.47 Non cellulosiques : Nylon, acryliques, polyesters, vinyles Résumé : Polyethylene terephthalate (PET) filaments were produced by adding various weight percentages of TiO2 at the draw ratios of 3.5 and 4.0, respectively. The effect of TiO2 on visual shielding property of the PET filaments was investigated by the spectroscopy measurement. The results indicate that the light reflectance of the PET filaments shows a rising trend and the light transmittance decreases with the increase of the TiO2 weight percentage at both the draw ratios, which facilitates the enhancement of visual shielding property effectively. Furthermore, the variations of the light reflectance and light transmittance are more obvious when the TiO2 weight percentage ranges from 0-3 wt.0/0 compared with those within the TiO2 weight percentage of 3-9 vvt.0/0, suggesting that the improvement of the visual shielding property slows clown as the weight percentage of TiO2 increases. Note de contenu : - EXPERIMENTAL : Preparation of the PET filaments - Measurements
- RESULTS AND DISCUSSION : Compensation testing method of the visual shielding property - Light reflection spectra of the PET filaments - Light transmission spectra of the PET filamentsEn ligne : https://drive.google.com/file/d/1BTtVQw3s_bBZ4GSZy94rI-a76cxtGw_i/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36691
in CHEMICAL FIBERS INTERNATIONAL > (10/2021) . - p. 27-29[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23018 - Périodique Bibliothèque principale Documentaires Disponible Effect pigments with customized performance for cosmetics / Kailash M. Mogare in SOFW JOURNAL, Vol. 146, N° 10 (10/2020)
PermalinkEffective models for correlating spectral reflectance between spectrophotometers / Yang Xu in COLORATION TECHNOLOGY, Vol. 129, N° 4 (08/2013)
PermalinkEffects of isomerism on near infrared properties of perylene bisimide derivatives / Majid Mazhar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
PermalinkEliminating material dependency in spectra measurement via non-neighbouring band regression / Hui-Liang Shen in COLORATION TECHNOLOGY, Vol. 132, N° 2 (04/2016)
PermalinkEnergy saving pigment / Davide Grotto in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4578 (11/2012)
PermalinkEnhanced surface quality measurement / Tony Burrows in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4577 (10/2012)
PermalinkEnhancement of the Mie scattering effect using floatstone-like TiO2 spherical micropigment / Tomohiro Shirosaki in COLORATION TECHNOLOGY, Vol. 133, N° 3 (06/2017)
PermalinkExamining the efficiency of titanium dioxide in matt paints and methods of obtaining optimal dry opacity without sacrificing wet hide / Paul Dietz in SURFACE COATINGS INTERNATIONAL, Vol. 106.5 (09-10/2023)
PermalinkExploring marine applications for heat-reflective coatings / Rob Portsmouth in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 30, N° 5 (05/2013)
PermalinkHair shine : correlation instrumental and visual methods for measuring the effects of silicones / Isabelle Van Reeth in IFSCC MAGAZINE, Vol. 4, N° 1 (01-02-03/2001)
PermalinkPermalinkHollow thermoplastic microspheres in elastomeric cool roof coatings / Jan Nordin in COATINGS TECH, Vol. 16, N° 1 (01/2019)
PermalinkPermalinkHow to turn black to cool / Lutz Frischmann in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 197, N° 4517 (10/2007)
PermalinkImpact of extenders in TiO2 reduction and curing efficiency in UV cured flexo ink / Amandine Briand in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4657 (12/2019)
Permalink