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The effect of dye constitution on the wettability of chrome leather / D. E. Crack in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)
[article]
Titre : The effect of dye constitution on the wettability of chrome leather Type de document : texte imprimé Auteurs : D. E. Crack, Auteur ; S. Wolstenholme, Auteur Année de publication : 1974 Article en page(s) : p. 115-119 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants
Cuir teint
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de daims
Echantillonnage
Essais (technologie)
Matières premières
MouillabilitéIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Suede split chrome tanned leather obtained in the crust condition was dyed with various dyes of known chemical structure. The wettability of the dyed leathers was assessed by a series of tests. The results showed that the constitution of the dyes affects the wettability of the leather used. Note de contenu : - The dyes
- Group I and II
- Raw material
- Sampling
- Dyeing
- Wettability testing
- Table 1 : The water drop test results
- Table 2 : Results of the dynamic flexing tests
- Table 3 : Quantities calculated from dynamic flexing test results
- Table 4 : Experimental data and quantities calculated from the wet rubbing test
- Table 5 : Experimental data and quantities calculated from the bottle shake experimentEn ligne : https://drive.google.com/file/d/1P2ZD2Gv2J-0-B6Lq-z2TfiOL43k2QkIc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35486
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 58 (Année 1974) . - p. 115-119[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008594 - Périodique Archives Documentaires Exclu du prêt The impact of milling on leather properties and fatliquor distribution / Richard L. Edmonds in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
[article]
Titre : The impact of milling on leather properties and fatliquor distribution Type de document : texte imprimé Auteurs : Richard L. Edmonds, Auteur ; Adriano Peruzzi, Auteur ; Sue M. Cooper, Auteur Année de publication : 2017 Article en page(s) : p. 312-317 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : 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 -- Analyse
Cuirs et peaux -- Teneur en matières grasses
Douceur (toucher)
Echantillonnage
Epaisseur -- Mesure
Fragmentation
Lipides
Produits de nourriture du cuir
Résistance à la déchirureIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather samples were produced With five different types of fatliquor and were treated with a standard milling process. The leathers were assessed before and after milling for strength and softness using standard rnethods and fatliquor distribution was analysed. Milling was pound to increase softness and thickness, and increased the strength of the leather for four of the five different fatliquored samples. The fatliquor distribution was determined using a novel technique where image analysis of a series of photomicrographs of cross sections stained with Sudan III/IV was carried out. It was found that
different fatliquors were distributed slightly differently in the leathers. There were peaks of fat in the grain and lower corium with much less in the upper corium. When the fatliquored crust leather was milled the overall distribution of fat through the cross section remained unchanged indicating that changes in physical properties brought about by milling were not the result of bulk fatliquor redistribution.Note de contenu : - MATERIALS AND METHODS : Leather preparation - Physical testing - Staining procedure - Microscope image analysis
- RESULTS AND DISCUSSION : Absolute fat content - Tear strength, thickness and softness - Redistribution of fat with mechanical actionEn ligne : https://drive.google.com/file/d/1d5JimwdFOymORe-NiEQi18bf2LpHzaME/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29671
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 6 (11-12/2017) . - p. 312-317[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19446 - Périodique Bibliothèque principale Documentaires Disponible The sampling of sides at edge locations / R. G. Mitton in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 6 (06/1970)
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Titre : The sampling of sides at edge locations Type de document : texte imprimé Auteurs : R. G. Mitton, Auteur ; D. Otterway, Auteur Année de publication : 1970 Article en page(s) : p. 210-216 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux
EchantillonnageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The extensive American work on sampling locations 12, 3, showed which locations give the most accurate estimates of mean values for whole sides. In this work, extreme edge locations were not considered, possibly because they were regarded as unlikely to be satisfactory. However, routine control testing is much more likely to be used in tanneries if the samples can be taken from the edges, where the cutting of the leather is less obvious and less damaging. We have accordingly examined various edge locations for physical tests on sides. An area on the britch edge, 280 mm from the back bone and between 50 and 125mm from the britch edge appears to be only slightly inferior to the best sampling position within the side, and is quite suitable for routine physical testing. The results of chemical analyses are less dependent on location, and the same position could be used for chemical analyses. For smaller sides and skins the distance from the backbone should be decreased to give an anatomically similar location. Note de contenu : - Plan of the experiments : Locations tested - Tests - Calculation of correlation coefficients
- Results and conclusions : Difficulties of finding (or specifying) locations - Correlation coefficients
- Fig. 1 : NBS system for marking locations on sides.
- Fig. 2 : Locations of sampling positions
- Table 1 : Correlation coefficients r for the properties
- Table 2 : Geometric mean values for various ratios
- Table 3 : Within-group variances, standard deviations and coefficients of variationEn ligne : https://drive.google.com/file/d/1ifSsax0pveqBIhqyb0ouFbDaEPyYgkrx/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40713
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 54, N° 6 (06/1970) . - p. 210-216[article]The "Whoas" of solvent entrapment and release / Richard A. Burgess in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 31, N° 3 (03/2014)
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Titre : The "Whoas" of solvent entrapment and release Type de document : texte imprimé Auteurs : Richard A. Burgess, Auteur Année de publication : 2014 Article en page(s) : p. 15-23 Langues : Américain (ame) Catégories : Echantillonnage
Evaporation
Revêtement en phase solvant:Peinture en phase solvant
Revêtements -- Défauts:Peinture -- Défauts
solvants
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : Whoa! Hold on ! How much thinner do you plan to add ? What thinner do you plan to add ? The data sheet says you can add up to 10% by volume.
Even so, it is not uncommon to see painters (or painters' helpers) estimating thinner addition. It takes an experienced applicator who can save precious time by estimating thinner additions. After all, the reducer is going to evaporate from the applied coating film anyway. Should it matter that the solvent is supplied by "Universal Solvent," and the coating is supplied by "Not-So-Universal Resin ?" Of course it matters, just as it matters when adding 15% thinner when 5% will produce the desired viscosity. When was the last time you actually saw a bridge painter measure viscosity ? And who actually mixes the paint? The per-son with twenty years of experience or the person who has had one year of training twenty times ?Note de contenu : - SOLVENTS IN COATINGS
- TYPES OF SOLVENTS
- SOLVENT RELEASE-EVAPORATION AND DIFFUSIVITY
- SOLVENT ENTRAPMENT : Consequences of solvent entrapment (bubbling, pinholes, cracking, orange peel, flocculation, running and sagging (curtains), blistering, solvent sensivity)
- SAMPLING AND TESTING FOR ENTRAPPED SOLVENTSPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21654
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 31, N° 3 (03/2014) . - p. 15-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16201 - Périodique Bibliothèque principale Documentaires Disponible Time series data for process monitoring in injection molding : a quantitative study of the benefits of a high sampling rate / Lucas Bogedale in INTERNATIONAL POLYMER PROCESSING, Vol. 38, N° 2 (2023)
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Titre : Time series data for process monitoring in injection molding : a quantitative study of the benefits of a high sampling rate Type de document : texte imprimé Auteurs : Lucas Bogedale, Auteur ; Alexander Schrodt, Auteur ; Hans-Peter Heim, Auteur Année de publication : 2023 Article en page(s) : p. 167-174 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Apprentissage automatique L'apprentissage automatique (en anglais : machine learning, litt. "apprentissage machine"), apprentissage artificiel ou apprentissage statistique est un champ d'étude de l'intelligence artificielle qui se fonde sur des approches mathématiques et statistiques pour donner aux ordinateurs la capacité d'"apprendre" à partir de données, c'est-à -dire d'améliorer leurs performances à résoudre des tâches sans être explicitement programmés pour chacune. Plus largement, il concerne la conception, l'analyse, l'optimisation, le développement et l'implémentation de telles méthodes. (Wikipedia)
Commande de processus
Echantillonnage
Matières plastiques -- Moulage par injection
Pression d'injection
Séries chronologiquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Process monitoring systems are playing an increasingly important role in reducing production capacity losses in injection molding. Process monitoring and optimization systems are mostly based on processing data of injection molding machine control systems. These data consist of scalar data and time series. This paper introduces a novel approach to modelling injection molding processes using only time series data and evaluates the quantitative influences of varying sampling times on calculation of integral values and model quality. On the basis of the first experiment, it is shown that the sampling rates of these time series have a large influence on information which can be derived from this data (e.g. injection work). These findings provide an assessment of whether the effort is justified for the respective requirements on the accuracy of the injection work and other parameters derived from the time series. In the second experiment, a model is presented which uses only the injection flow and injection pressure profile as input and achieves high coefficients of determination for the prediction of the part weight, despite the absence of mold sensor data and scalar data. It is shown that higher sampling rates of time series results in higher prediction quality of these models. This improves the understanding of the data needed for high quality machine learning models of injection molding processes and enable users to estimate a lower bound for the sample rates of time series for their use cases. Note de contenu : - EXPERIMENTAL SETUP : Injection pressure integral - Analysis
- INTERPRETATION
- TIME SERIES ML MODEL : Setup - Analysis - Interpretation
- Table 1 : Varied parametersDOI : https://doi.org/10.1515/ipp-2022-4258 En ligne : https://drive.google.com/file/d/1DOzkrMWcuxn8WNwiIYALOpw8dzzwlgXj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39496
in INTERNATIONAL POLYMER PROCESSING > Vol. 38, N° 2 (2023) . - p. 167-174[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24121 - Périodique Bibliothèque principale Documentaires Disponible Valorisation des matières plastiques bromées issues des D3E / Layla Gripon in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 972 (01-02/2021)
PermalinkVariation in stratum corneum protein content as a function of anatomical site and ethnic group / N. Raj in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 38, N° 3 (06/2016)
PermalinkVirtual mold sampling for robust processes / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 10 (10/2013)
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