Accueil
Catégories
> Colorimétrie
ColorimétrieVoir aussi
|
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Artificial neural networks for optimising camera-based colour measurements of prints enhanced with pearlescent pigments / Ivana Tomic in COLORATION TECHNOLOGY, Vol. 134, N° 5 (10/2018)
[article]
Titre : Artificial neural networks for optimising camera-based colour measurements of prints enhanced with pearlescent pigments Type de document : texte imprimé Auteurs : Ivana Tomic, Auteur ; Sandra Dedijer, Auteur ; Dragoljub Novakovic ; Ivana Juric Année de publication : 2018 Article en page(s) : p. 364-372 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Photographie numérique
Pigments nacrés
Réseaux neuronaux (informatique)Index. décimale : 667.3 Teinture et impression des tissus Résumé : Pearlescent pigments are widely used in printing due to their optical, chemical and physical properties. To analyse the effects of goniochromism they produce, the colorimetric characterisation of materials printed with pearlescent pigments requires multi-angular measurements. In this study, the colours of prints enhanced with pearlescent pigments were measured by means of a digital camera, relying on the empirical camera characterisation method. Since this method is time-consuming, it was altered to enable estimates of colorimetric values for different geometries to be measured on the basis of images captured at one viewing angle. This approach was based on the use of artificial neural networks which were shown to provide sufficient flexibility for the given task. The results indicate that the images obtained at the viewing angle of 45° aspecular (measuring geometry 45°/asp 45°) accurately estimate CIELab values for all of the tested measuring geometries. The proposed method is therefore not only time-efficient but also reduces the associated errors due to the camera's movement, and enables the estimation of colorimetric values for those viewing angles inaccessible by camera. DOI : 10.1111/cote.12346 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12346 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31161
in COLORATION TECHNOLOGY > Vol. 134, N° 5 (10/2018) . - p. 364-372[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 20217 - Périodique Bibliothèque principale Documentaires Disponible Automatic corrections and calculations / Julia Botos in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 4 (04/2013)
[article]
Titre : Automatic corrections and calculations Type de document : texte imprimé Auteurs : Julia Botos, Auteur ; Thomas Hochrein, Auteur ; Karsten Kretschmer, Auteur ; Peter Heidemeyer, Auteur ; Bernhard Ulmer, Auteur ; Martin Bastian, Auteur Année de publication : 2013 Article en page(s) : p. 20-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Matières plastiques -- ColorationIndex. décimale : 668.4 Plastiques, vinyles Résumé : Inline process color measurements allow color formulations to be precisely adjusted. Color deviations due to for example batch to batch variations can not only be recognized early, but also directly corrected. This technique also enables accelerated color matching against samples or standards. Note de contenu : - Measuring the color of polymers
- Automatically calculating color correctionsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18658
in KUNSTSTOFFE INTERNATIONAL > Vol. 103, N° 4 (04/2013) . - p. 20-22[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 14940 - Périodique Bibliothèque principale Documentaires Disponible Benefit of coconut-based hair oil via hair porosity quantification / Vaibhav Kaushik in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 44, N° 3 (06/2022)
[article]
Titre : Benefit of coconut-based hair oil via hair porosity quantification Type de document : document électronique Auteurs : Vaibhav Kaushik, Auteur ; Ajeet Kumar, Auteur ; Nitya Nand Gosvami, Auteur ; Vaishali Gode, Auteur ; Sudhakar Mhaskar, Auteur ; Yash Kamath, Auteur Année de publication : 2022 Article en page(s) : p. 289-298 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cheveux -- analyse
Cheveux -- Propriétés mécaniques
Cheveux -- Soins et hygiène
Cheveux défrisés -- Soins et hygiène
Colorimétrie
Noix de coco et constituants
Pore (anatomie)Ouverture imperceptible dans la peau de l’homme ou de l’animal, par où se fait la transpiration. (wiktionnaire)
Produits capillaires
SurfactantsIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : The present study is intended to characterize the surfactant damage suffered by the hair cortex in routine washing and the mechanistic effect of Coconut Based Hair Oils (CBHO) to mitigate the damage.
- Methods : Surfactants which diffuse into the hair structure solubilize protein moieties, leading to an increase in porosity and internal surface area as well as the pore volume. The changes in hair pores occurring in the hair cortex are measured by nitrogen sorption method in line with the Brunauer-Emmett-Teller (BET) theory. Single fiber tensile parameters were measured using Diastron MTT 175. Color protection was measured quantitatively using spectrophotometer as well as visual rating by trained panelists.
- Results : The pore surface area data clearly show the benefit of introducing coconut-based hair oils (CBHO) into the hair by preventing increase in hair porosity. A statistically significant decrease in break stress and toughness were observed and the same were reversed by the application of CBHO. A pronounced color protection effect was also recorded with the application of CBHO.
- Conclusion : The porosity reduction effect seen with the use of CBHO is attributed to the CBHO molecules blocking the diffusion pathways in the endocuticle and the matrix part of the cortical cells, limiting protein surfactant interaction resulting in reduced solubilization and loss. Since, the color molecules are likely to be much smaller than the protein moieties, a pronounced color protection effect suggests that the penetrated CBHO molecules form a dense diffusion barrier in the matrix, cell membrane complex (CMC) and the endocuticle regions of hair - which are the main diffusion pathways out of hair. The study confirms the damage repair potential of CBHO and that it works by increasing the hydrophobicity of hair - both on the hair surface and in the cortex.Note de contenu : - MATERIALS AND ME THODS : Human hair sourcing - Surfactant treatment protocol - Hair oil treatment - Hair colour treatment
- BET SURFACE AREA MEASUREMENT
- SINGLE FIBRE TENSILE TESTING : Hair colour measurement
- RESULTS AND ANALYSIS : Effect of treatment on tensile strength - Colour protection by CBHO
- Table 1 : Pore size, pore area and pore volume quantification
- Table 2 : Tensile parameters per cent change with treatments
- Table 3 : p-Value for two-sample T-test conducted with different combinations of dataEn ligne : https://drive.google.com/file/d/1I5Y1HbaVORe7vCr2XLCzp3oWZDZvznsZ/view?usp=shari [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38131
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 44, N° 3 (06/2022) . - p. 289-298[article]Benefits of a novel collagen in skin care applications / Zhao Jianfeng in PERSONAL CARE EUROPE, Vol. 14, N° 3 (06/2020)
[article]
Titre : Benefits of a novel collagen in skin care applications Type de document : texte imprimé Auteurs : Zhao Jianfeng, Auteur Année de publication : 2020 Article en page(s) : p. 31-35 Langues : Anglais (eng) Catégories : Analyse d'image L'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 des données
Collagène
Colorimétrie
Cornéométrie
Formulation (Génie chimique)
Humidité -- Mesure
Peau -- Soins et hygièneIndex. décimale : 668.5 Parfums et cosmétiques Résumé : The Biollagen suite of products designed for use in skin care and medical procedures is derived from synthetic Pichia yeast.
The patented process produces a non-allergic high-performance vegan-accredited collagen, with 200 times the performance levels of collagen extracted from bovine gristle.
A study to determine the efficacy of Biollagen in skin care applications was conducted with a half-face assessment of two formulations, one containing a novel collagen (INCI name: sh-polypeptide-123, Trade Name: Biollagen) from JLand Biotech Ltd and a placebo formulation, in a panel of female volunteers with signs of premature facial ageing. Thirty-six female volunteers age range 35 to 65 years were screened for the study, with 32 volunteers entering the study.Note de contenu : - Materials and methods
- Results : Discussion
- Assessment : Facial photography - Canfield visia - Test site for instrumental assessments - Skin colour measurement - Skin moisture measurements
- Data analysis : Canfield visia image analysis - Photography - Canfield visia images - Skin colour measurement - Corneometer data- Canfield visia image analysis parameters - Chromameter data - Corneometer data
- Fig. 1 : Change in parameter pores between baseline and week 10
- Fig. 2 : Change in parameter UV spots between baseline and week 10
- Fig. 3 : Active and placebo
- Fig. 4 : Change in parameter skin lightness between baseline and week 10
- Table 2 : Pores
- Table 3 : UV spots
- Table 4 : Texture
- Table 5 : Blinded photographic comparison
- Table 6 : Chromameter data - lightness
- Table 7 : Green/red
- Table 8 : Blue/yellowEn ligne : https://drive.google.com/file/d/1aaL7kbqx9vXO2zIYS_S3vRkH63L0TmUi/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34276
in PERSONAL CARE EUROPE > Vol. 14, N° 3 (06/2020) . - p. 31-35[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21749 - Périodique Bibliothèque principale Documentaires Disponible BiVO4-pigments and colour space expansion / Heinrich-Michael Wirlth in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2019)
[article]
Titre : BiVO4-pigments and colour space expansion Type de document : texte imprimé Auteurs : Heinrich-Michael Wirlth, Auteur ; Olaf Schmidt-Park, Auteur Année de publication : 2019 Article en page(s) : p. 114-119 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Jaune
Pigments hybrides
Pigments inorganiques -- Analyse
Vanadate de bismuthIndex. décimale : 667.2 Colorants et pigments Résumé : Currently the inorganic yellow pigments used most in the paint and coating industry are lead chromate, goethite, nickel/chromium-rutile and bismuth vanadate. The chromaticity coordinates of these pigments are depicted in Fig. 1 as a full tone. Note de contenu : - Colour properties of BiVO4
- Chemical modifications of bismuth vanadates
- Combining BiVO4 pigments inorganic orange pigments
- BiVO4-hybrid pigments
- The way forward
- Fig. 1 : Colour space of inorganic yellow pigments (full tone melamine resin system, D65/10°C, CIELab units)
- Fig. 2 : Combination of m-Scheelite-ViOV4P2 with inorganic orange pigments (chromaticity in full tone)
- Fig. 3 : Remission spectra of different BiVO4/RTZ-orange mixtures (measurements according to paint deliver/full tone)
- Fig. 4 : BiVO4-hybrid pigments with different organic yellow/orange pigments (full tone melamine resin system)
- Fig. 5 : Development of a* (full tone melamine resin) dependent on the component portion
- Table 1 : Properties of BiVO4 pigments
- Table 2 : Combination of BiVO4 with the inorganic orange pigment PY 216
- Table 3 : Combination of BiVO4 with the inorganic orange pigment PY 42
- Table 4 : Hybrid pigments based on monocline ViVO4En ligne : https://drive.google.com/file/d/1YzYpkfx-p7SnNqeUTIcjp8mRff34cMyR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32024
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2019) . - p. 114-119[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 20739 - Périodique Bibliothèque principale Documentaires Disponible PermalinkBoosting the performance of SMP sealants with Clariant sustainable stabiliser solutions / Jean-Yves Desrats in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4666 (12/2020)
PermalinkCellulose hydrophobe : texture micro-fine à ultra-forte performance / Johanna Schulte in EXPRESSION COSMETIQUE, N° Hors-série (12/2021)
PermalinkCetylpyridinium chloride cationic finishing improves the dyeing and antibacterial properties of madder dyed cotton / Yue Dai in COLORATION TECHNOLOGY, Vol. 139, N° 6 (12/2023)
PermalinkCharacterising the appearance of liquid binders in EUROPEAN COATINGS JOURNAL (ECJ), N° 10/96 (10/1996)
PermalinkCharacteristics of urushi film prepared through thermal polymerization / Chieko Narita in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
PermalinkChimie des couleurs et investigations préliminaires en police scientifique / Laurence Dujourdy in L'ACTUALITE CHIMIQUE, N° 378-379 (10-11/2013)
PermalinkChlorophylls, lutein and B-carotene play great but different roles in colour of rapeseed oil / Yingzheng Yao in COLORATION TECHNOLOGY, Vol. 138, N° 6 (12/2022)
PermalinkChromium species and testing (part 1) / Karl Flowers in INTERNATIONAL LEATHER MAKER (ILM), N° 36 (07-08/2019)
PermalinkCleaner processing of leather and its wastes / James Kanagaraj / Saarbrücken [Germany] : Lambert Academic Publishing (2010)
PermalinkClinical evaluation of a dioic acid-based formulation on facial skin in an Indian population / Eve Merinville in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 34, N° 6 (12/2012)
PermalinkColor and appearance basics for coatings / Robert T. Marcus in COATINGS TECH, Vol. 7, N° 7 (07/2010)
PermalinkColor in business, science and industry / Deane B. Judd / New York [Etats-Unis] : John Wiley & Sons (1975)
PermalinkColor measurement made easy / Björn Hotting in SOFW JOURNAL, Vol. 142, N° 9 (09/2016)
PermalinkColor science / Günter Wyszecki / New York [Etats-Unis] : John Wiley & Sons (1967)
Permalink