Preparation and application of a novel cationic fatliquoring agent / Yang Hong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 1 (01-02/2019)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 1 (01-02/2019) . - p. 35-42 Titre : Preparation and application of a novel cationic fatliquoring agent Type de document : texte imprimé Auteurs : Yang Hong, Auteur ; Jin Liqiang, Auteur ; Yulu Wang, Auteur ; Jinlong Wang, Auteur Année de publication : 2019 Article en page(s) : p. 35-42 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse sensorielle Caractérisation Colorants -- Absorption Colorimétrie Composés organiques -- Synthèse Cuirs et peaux -- Propriétés mécaniques Douceur (toucher) Emulsifiants Formulation (Génie chimique) Produits de nourriture du cuir Solidité de la couleur Solutions aqueuses (chimie) Tension superficielle Tomographie Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this work, a novel cationic fatliquoring agent YI-1 was prepared by two steps. Firstly, a cationic emulsifier YW based on fatty acid triethanolamine ester was synthesized by using stearic acid, triethanolamine and benzyl chloride. Then, YH was obtained by mixing a certain amount of YW, non-ionic surfactant and neutral oil. The composition of YH was optimized by its application behaviour as a fatliquor. The structure of YW was characterised by infrared spectroscopy and H-NMR. The surface tension of YW aqueous solution was determined by using a surface tension meter. The stability, particle size and zeta potential of YH were studied. The results show that YH exhibits high centrifugal stability and electrolyte resistance with an average particle size of 24.44nm and zeta potential of 60.8mV at pl-14.5. The leather samples treated by YH show high softness, tensile strength and tear strength. When YH was used as a dye-fixing agent, it could promote the absorption and fixation of anionic dyestuff, and improve the dry/wet fastness of leather and the colour fastness of washing. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation process of cationic fatliquoring agent YH - Characterisation - Application formulations - Determination of leather properties - RESULTS AND DISCUSSIONS : Synthesis of cationic emulsfifier YW - Surface tension of YW aqueous solution - Optimisation of preparation conditions of YH - Physical and chemical indices of YH - The applications results of YH En ligne : https://drive.google.com/file/d/18uP_e5DEwIYcUA-K0qEPllcLkGtAFSTp/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31791 [article]

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Synthesis and mutagenic properties of 4,4'-diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl / Jinlong Wang in COLORATION TECHNOLOGY, Vol. 123, N° 1 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 1 (2007) . - p. 34-38 Titre : Synthesis and mutagenic properties of 4,4'-diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl Type de document : texte imprimé Auteurs : Jinlong Wang, Auteur ; Harold S. Freeman, Auteur ; Larry D. Claxton, Auteur Année de publication : 2007 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : 4,4'-Diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl were synthesised from readily available chemical intermediates. These compounds, along with 1,4-diaminophenylene and benzidine were examined in the Salmonella microsome assay with strains TA98 and TA100. The results of this study indicate that the mutagenicity of these diamines was the greatest for 4,4'-diamino-p-terphenyl, followed by diaminophenylene and benzidine, with 4,4'-diamino-p-quaterphenyl showing no mutagenicity. DOI : 10.1111/j.1478-4408.2006.00058.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2006.00058.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3580 [article]

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Synthesis and mutagenic properties of direct dyes from 4,4'-diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl / Jinlong Wang in COLORATION TECHNOLOGY, Vol. 123, N° 1 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 1 (2007) . - p. 39-45 Titre : Synthesis and mutagenic properties of direct dyes from 4,4'-diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl Type de document : texte imprimé Auteurs : Jinlong Wang, Auteur ; Harold S. Freeman, Auteur ; Larry D. Claxton, Auteur Année de publication : 2007 Article en page(s) : p. 39-45 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Disazo direct dyes were synthesised using bis-diazotisation and coupling reactions involving 4,4'-diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl. The formation of the target dyes was confirmed by electrospray mass spectrometry and their mutagenicity was examined in the Salmonella microsome assay using TA98 and TA100. While most of these dyes were clearly non-mutagenic, results from the Prival modification of the standard assay showed that Congo Red and its homologue derived from 4,4'-diamino-p-terphenyl were clearly mutagenic. DOI : 10.1111/j.1478-4408.2006.00059.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2006.00059.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3581 [article]

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