Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
[article]
Titre : Seeing clearly through the haze : Improving the accuracy of formaldehyde determination in turbid systems Type de document : texte imprimé Auteurs : Bernd Neumann, Auteur Année de publication : 2015 Article en page(s) : p. 144-148 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chimie analytique
Etalonnage
Formaldéhyde
Spectroscopie d'absorption
Spectroscopie ultraviolette
TurbiditéIndex. décimale : 667.9 Revêtements et enduits Résumé : The permitted use of formaldehyde as a preservative in coatings are restricted by various regulations. However, remaining turbidity frequently found in UV/VIS spectroscopic samples can produce inaccurate centrifuged readings. Absorbance readings taken from samples placed inside an integrating sphere can eliminate these errors. Note de contenu : - Limits of the standard spectroscopic method
- Calibration : tests on clear systems
- Why the calibration curve is not linear
- Effects of turbidity examined in detail
- Integrating sphere eliminates turbidity errors
- Automatic compensation for turbidity effectsEn ligne : https://drive.google.com/file/d/1JHbMoxGaPVvtO0p4PCPBtZlyyTlYravg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23751
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4 (04/2015) . - p. 144-148[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17141 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and application of KM-type reactive dyes containing 2-ethoxy-4-chloro-s-triazine / Qiushui Zhang in COLORATION TECHNOLOGY, Vol. 135, N° 5 (10/2019)
[article]
Titre : Synthesis and application of KM-type reactive dyes containing 2-ethoxy-4-chloro-s-triazine Type de document : texte imprimé Auteurs : Qiushui Zhang, Auteur ; Wei Xiong, Auteur ; Shufen Zhang, Auteur ; Ma Wei, Auteur ; Bingtao Tang, Auteur Année de publication : 2019 Article en page(s) : p. 335-348 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Etalonnage
Fixation (chimie)
Hydrolyse
Photostabilité
Résistance au nettoyage
Solubilité
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : A new kind of hetero-bifunctional reactive dye containing 2-ethoxy-4-chloro-s-triazine, with better activity matching with β-hydroxyethyl sulphone sulphate at a low fixation temperature, was successfully synthesised and characterised. An ethoxy group was designed to be introduced into triazine to increase the substantivity and the reactivity of the dyes. Thereby, the fixation of mono-s-chlorotriazine/hydroxyethyl sulphone sulphate (KM-type) bifunctional reactive dyes on cotton was improved, and dyeing under mild conditions with high fixation was realised. Nineteen dyes with orange, red and blue colours were synthesised and characterised by UV-Vis and infrared spectroscopy and mass spectrometry. Synthesised dyes were dyed at 60, 75 and 90°C, respectively. Exhaustion and reactivity for all of the ethoxy-containing KM-type dyes was over 90% at the optimal temperature, and fixation was over 87%, which was higher than the ethoxy-free comparative dyes. The optimal fixation temperature of ethoxy-containing dyes was initially reduced to 75°C, and then to 60°C. Compared with comparative dyes, the wash fastness and light fastness were basically unchanged, and the wet rub fastness of the H-acid series was reduced by one grade. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of dyes - Determination of standard curve and solubility - Study of hydrolysis reaction kinetics - Dyeing and fixing process - Measurements
- RESULTS AND DISCUSSION : Synthesis and spectral properties of the dyes - Structure of dye intermediates - Structures and UV-Vis absorption spectra of KM-type reactive dyes - Determination of the hydrolysis reaction rate constant - Syeing results of KM-type and K-type reactive dyes - J-acid monoazo series reactive dyes - γ-acid monoazo series reactive dyes - H-acid series reactive dyes - Colour fastness properties of KM-type reactive dyesDOI : 10.1111/cote.12424 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12424 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33066
in COLORATION TECHNOLOGY > Vol. 135, N° 5 (10/2019) . - p. 335-348[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21251 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : The color loop : Ensuring color consistency of recyled materials Type de document : texte imprimé Auteurs : Walter Braumandl, Auteur Année de publication : 2022 Article en page(s) : p. 50-51 Langues : Anglais (eng) Catégories : Couleur
Etalonnage
Matières plastiques -- Recyclage
Produits et matériaux recyclésIndex. décimale : 668.4 Plastiques, vinyles Résumé : The mass of recyclable plastic waste has been growing steadily for years. This is mainly the result of technical advances made in both processing and sorting. At the same time, the recycling targets set by the EU are piling more and more pressure on companies to increase the amount of recycled plastics in their products. This in turn is raising the requirements imposed on the recycled materials themselves. Aside from the nature of the polymer and the previous application, the color of the recycled material is important. Note de contenu : - Monitoring the color profile of the recycled materials
- Software-assisted calibration
- Color deviation for the referenceEn ligne : https://en.kunststoffe.de/a/specialistarticle/the-color-loop-2824977 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38000
in KUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 5 (2022) . - p. 50-51[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23521 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : UV inks : properly cured ?! : Ensuring that UV inks are fully cured Type de document : texte imprimé Auteurs : Carina Sötebier, Auteur Année de publication : 2019 Article en page(s) : p. 50-56 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Encre -- Séchage sous rayonnement ultraviolet
Encre en phase solvant
Etalonnage
PhotoréticulationIndex. décimale : 667.9 Revêtements et enduits Résumé : As UV-curable inks become more widespread throughout industry, there is a growing need for printers to vouchsafe the high quality of the printed material and to guarantee that the ink films are properly cured and ready for further processing. A new method enables them to do precisely that. Note de contenu : - Benefits of UV inks
- Experimental : Materials - Instruments - Sample preparation - UV/vis measurement
- Methodology
- Marker migration
- Marker concentration in solvent indicates degree of curing
- Design of experiments
- Calibrating the inks
- Printing job-specific threshold extinction value for each ink system
- More satisfied customers
- Fig. 1 : Example of a marker embedded in two ink systems of different network density
- Fig. 2 : The influence of grammage on the extinction signal-
- Fig. 3 : The extinction signal as a function of extraction time for samples cured to different degrees
- Fig. 4 : Extinction as a function of the degree of curing
- Fig. 5 : Sample test form for evaluating the effects of different printing conditions on the degree of curing
- Fig. 6 : Sample Pareto chart showing the effects of different printing conditions on the extinction value
- Fig. 7 : Normal probability plot for the extinction of three different ink systems as a function of curing conditionsEn ligne : https://drive.google.com/file/d/1p2Z9tK3m86dNFTcN7cbNbED1CFbSLmf1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32691
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2019) . - p. 50-56[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21002 - Périodique Bibliothèque principale Documentaires Disponible "We are constantly developing new products" / Andrew E. Brink in JEC COMPOSITES MAGAZINE, N° 95 (03/2015)
[article]
Titre : "We are constantly developing new products" Type de document : texte imprimé Auteurs : Andrew E. Brink, Personne interviewée Année de publication : 2015 Article en page(s) : p. 102-103 Langues : Anglais (eng) Catégories : Composites
Conception technique
EtalonnageIndex. décimale : 668.4 Plastiques, vinyles Résumé : Sizing is a key element of a good composite. Only few people in the world are experts in this field. Dr. Andrew E. Brink from Michelman in one of them. Let him explain what is the importance of size and what are the trends for this essential expertise in our industry. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23823
in JEC COMPOSITES MAGAZINE > N° 95 (03/2015) . - p. 102-103[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17040 - Périodique Bibliothèque principale Documentaires Disponible