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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]
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
TomographieIndex. 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 YHEn ligne : https://drive.google.com/file/d/18uP_e5DEwIYcUA-K0qEPllcLkGtAFSTp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31791
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 1 (01-02/2019) . - p. 35-42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20620 - Périodique Bibliothèque principale Documentaires Disponible Preparation of formaldehyde-free melamine resin using furfural as condensation agent and its retanning performances investigation / Zhou Ji-Bo in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 6 (06/2018)
[article]
Titre : Preparation of formaldehyde-free melamine resin using furfural as condensation agent and its retanning performances investigation Type de document : texte imprimé Auteurs : Zhou Ji-Bo, Auteur ; Li Pei-Lin, Auteur ; Jian-Fei Zhou, Auteur ; Liao Xue-Pin, Auteur ; Bi Shi, Auteur Année de publication : 2018 Article en page(s) : p. 198-206 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Colorimétrie
Cuirs et peaux -- Analyse
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Douceur (toucher)
Epaisseur -- Mesure
Formaldéhyde -- Suppression ou remplacement
Fourier, Spectroscopie infrarouge à transformée de
Furfural
Mélamine -- Synthèse
Potentiel zeta
Retannage
Spectroscopie de la résonance magnétique nucléaire
Taille des particules
Température de retraitIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Amino resins are one of the most important retanning agents used in the leather industry. However, the generally presence of formaldehyde greatly restricts the widespread application of amino resins. In this study, furfural, an organic compound derived from biomass material, was used to substitute for formaldehyde in the synthesis of melamine resin based on an alkaline-acid procedure. The as-synthesized formaldehyde-free melamine resin (MRf) showed excellent performances in leather processing. FTIR and 13C-NMR were used to characterize the chemical structure of MRf. The particle size as well as zeta potential were also determined. The retanning performances of MRf indicated that the overall performances of MRf are comparable to conventional formaldehyde contained melamine resin (MR) and commercial melamine resin (CMR). In particular, the thickness of the leather retanned by MRf was enhanced around 10.33%, which is significantly higher than that of controls MR (6.16%) and CMR (5.94%). Color measurements showed that MRf imparted leather with higher dark intensity. This present work demonstrated that furfural could be a potential candidate to replace formaldehyde in the production of formaldehyde-free melamine resin. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of MRf resin
- CHARACTERIZATION OF MRF : Fourier Transform Infrared (FTIR) spectroscopy analysis - Nuclear Magnetic Resonance ( NMR) analysis - Particle size and zeta potential determination
- RETANNING PERFORMANCES OF MRF : Physical and mechanical characteristic of leather - Color measurements - Analysis of free formaldehyde content in leather
- RESULTS AND DISCUSSION : Preparation of MRf - FTIR spectroscopy analysis of MRf resin - C NMR spectroscopy analysis - Particle size and zeta potential
- RETANNING PERFORMANCES OF MRF : Absorption, thickening and softness of leather - Physical and mechanical characteristics of leather - Shrinkage temperature of leather, chromium concentration in spent liquor and formaldehyde content in leather - Color measurementsEn ligne : https://drive.google.com/file/d/12CWMptyjoA2fiMqA2-t3PL-Scy5xhxRO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30689
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIII, N° 6 (06/2018) . - p. 198-206[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19986 - Périodique Bibliothèque principale Documentaires Disponible Preparation of titanium phosphates with additives in hydrothermal process and their powder properties for cosmetics / Hiroaki Onoda in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 35, N° 2 (04/2013)
[article]
Titre : Preparation of titanium phosphates with additives in hydrothermal process and their powder properties for cosmetics Type de document : texte imprimé Auteurs : Hiroaki Onoda, Auteur ; Taisuke Yamaguchi, Auteur Année de publication : 2013 Article en page(s) : p. 196-200 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques
Douceur (toucher)
Eau -- Rétention
Phosphate de titane
Photocatalyse
Poudres -- Emploi en cosmétologieIndex. décimale : 668.5 Parfums et cosmétiques Résumé : In this study, titanium phosphates were prepared from titanium chloride and phosphoric acid, sodium pyrophosphate and sodium triphosphate solutions with water retention compounds in hydrothermal process as a novel white pigment for cosmetics. Their chemical composition, powder properties, photo catalytic activity, water retention and smoothness were studied. The addition of glycerin in the preparation from sodium pyrophosphate has the useful method to obtain homogenized spherical particles of titanium phosphate pigments for the cosmetics. These titanium phosphates had less photo catalytic activity to protect the sebum on the skin. Note de contenu : - Chemical composition and powder properties of precipitates
- Cosmetic properties of titanium phosphatesDOI : 10.1111/ics.12026 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/ics.12026 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18113
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Code-barres Cote Support Localisation Section Disponibilité 14981 - Périodique Bibliothèque principale Documentaires Disponible Quantitative determinations of isoelectric point of retanned leather and distribution of retanning agent / Ying Song in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 7 (07/2018)
[article]
Titre : Quantitative determinations of isoelectric point of retanned leather and distribution of retanning agent Type de document : texte imprimé Auteurs : Ying Song, Auteur ; Ya-Nan Wang, Auteur ; Yunhang Zeng, Auteur ; Haopeng Wu, Auteur ; Bi Shi, Auteur Année de publication : 2018 Article en page(s) : p. 232-238 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorption
Agents de tannage
Douceur (toucher)
Epaisseur -- Mesure
Mimosa et constituants
Point isoélectriqueEn biochimie, le point isoélectrique (pI) ou potentiel hydrogène isoélectrique (pHI) est le pH auquel une molécule est sous forme d'ion mixte ou, en physico-chimie, le pH d'une solution aqueuse dans laquelle un solide existe sous un potentiel électrique neutre.
En physico-chimie : Selon Bolger, le caractère acide ou basique d'une surface s'exprime par son point isoélectrique " Is ou IEPS (Iso Electric point for the surface) " ou point de charge nulle " PCN ou PZC (Point of Zero Charge) ", défini comme étant le pH de la solution aqueuse dans laquelle le solide existe sous un potentiel électrique neutre. Si le pH de la solution est basique, la surface est acide, et inversement. La différence entre le PZC et l'IEPS est basée sur le phénomène d'adsorption spécifique. On peut considérer que si la grandeur mesurée ne dépend pas de la solution utilisée pour la mesurer (pH, concentration, nature des ions), alors on a affaire à un PZC. Dans le cas contraire, c'est un IEPS que l'on mesure. Par exemple, quand la mesure de goutte sessile à deux liquides est utilisée, on considère en général qu'il n'y a pas adsorption des ions de cette goutte et que la goutte déplace complètement l'alcane qui sert de deuxième liquide: on est alors en présence d’un PZC. Au contraire, dans les mesures de potentiel d'écoulement (streaming potential), la solution joue un rôle important et c'est un IEPS que l'on mesure. Enfin, la charge nette se définit grâce au pH de la solution aqueuse dans laquelle la surface métallique existe, dans un état électriquement neutre (c’est-à -dire [M-OH2+ surf]=[M-O- surf]) et au PZC.
- Si pH < PZC alors la charge nette est positive
- Si pH > PZC alors la charge nette est négative.
Il existe plusieurs méthodes expérimentales permettant de décrire l’état acido-basique de la surface : la mesure du potentiel d’écoulement, la photoélectrochimie, la mesure de l’angle de contact, et la spectroscopie XPS.
Polyacryliques
Polyamines
Potentiel zeta
RetannageIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Neutralized chrome leathers (pH 6.3) were retanned with typical anionic retanning agents acrylic resin (AC), amino resin (AR) and mimosa extract (ME) alone or together. The isoelectric points (pIs) of the retanned leathers were determined using a zeta potential analyzer for solid- state materials, and the penetratiOn as well as the uptake of the retanning agents in the leathers was analyzed using a fluorescent tracing technique. It was found that the pIs of the surface layers of the leathers retanned with 3% of AC, AR or ME alone became below 5.4, while the pIs of their middle layers were still around 7.4. The pIs of the upper, the middle and the lower layers of the leather retanned with 3% AC, 3% AR and 3% ME together were very close and below 3.6. Additionally, greater penetrations and uptakes of the retanning agents were obtained after retanning with AC, AR and ME together compared to alone. These results indicate that retanning with more and various anionic retanning agents is very useful for a more thorough decrease in the pI of the chrome-tanned leather and favors the penetration and the uptake of the retanning agents in the leather. Note de contenu : - EXPERIMENTAL : Materials - Determination of zeta potentials and particle sizes of AC, AR and ME - Determination of zeta potentials and pIs of retanned leathers - Observation of penetration of retanning agents in leather preparation of AF labeled AC (AF-AC) and RBITC labeled AR (RBITC-AR) - Determination of uptake rates of retanning agents in leather - Determination of thickness increase and softness of leathers
- RESULTS AND DISCUSSION : Zeta potentials of retanning agents and pIs of retanned leathers - Penetration and uptake of retanning agents in leather - Thickness and softness of leathersEn ligne : https://drive.google.com/file/d/1keikKrgJCaFXjyBVK_UakjUkfRFHknvs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30831
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Code-barres Cote Support Localisation Section Disponibilité 20080 - Périodique Bibliothèque principale Documentaires Disponible Revitalising hair beauty with aminosilicones / Tow Kuam Lem in GLOBAL PERSONAL CARE, Vol. 23, N° 10 (11/2022)
[article]
Titre : Revitalising hair beauty with aminosilicones Type de document : texte imprimé Auteurs : Tow Kuam Lem, Auteur ; Aylin Bozoglu, Auteur ; Clara Gil Navarro, Auteur Année de publication : 2022 Article en page(s) : p. 68-70 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amino-silicones
Brillance (optique)
Cheveux -- Soins et hygiène
Conditionneurs (cosmétique)
Cosmétiques
Douceur (toucher)
Formulation (Génie chimique)
Hydratation
Peignage
Produits après-shampooings
Produits capillaires
Protection thermique
shampooingsIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Since the pandemic, consumers have adopted new trends such as do-it-yourself beauty care and demanding high-performance hair care products that can achieve similar result as in a salon. BRB Silicones looks at how its aminosilicones are specially developed in response to meet this demand to provide multi benefits in conditioning, colour protection, hair shininess, hair manageability and hair smoothness.
In today’s competitive personal care market, consumers are demanding more when it comes to hair care products. Consumers value strong, shiny and full-bodied hair as healthy hair.
To meet these requirements, the hair care industry develops innovative products with protection and moisturisation claims, which have become important functionality claims in many hair care products, ranging from shampoo to conditioning and styling.Note de contenu : - Importance of hair protection & moisturisation
- Specialty silicone as multifunctional ingredient
- Bis-Hydroxy/Methoxy Amodimethicone
- Maintaining colour vibrancy
- Reduced combing force
- Wet & Dry Combing
- Improved hair smoothness
- Improved hair manageability
- Improved hair shininess
- Application
- Figure : Molecular structure of Bis-hydroxy/methoxy amodimethicone
- Formulation 1 : Shampoo
- Formulation 2 : Conditioner
- Formulation 3 : Deep moisturising shampoo
- Formulation 4 : Deep conditioning hair mask
- Formulation 5 : Heat protective hair oil
- Formulation 6 : Hair shine pomadeEn ligne : https://drive.google.com/file/d/1GZ6xMGRbrjO1kyAQkfHudE0kaRjusJLM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38710
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