Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Determination of fatty spew on leather by BG-MS / Yanan Wang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 6 (06/2011)
[article]
Titre : Determination of fatty spew on leather by BG-MS Type de document : texte imprimé Auteurs : Yanan Wang, Auteur ; Xuepin Liao, Auteur ; Qiang He, Auteur ; Bi Shi, Auteur Année de publication : 2011 Article en page(s) : p. 179-183 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acides gras
Chromatographie en phase gazeuse
Cuirs et peaux -- Analyse
Esters méthyliques
Produits de nourriture du cuir
Spectrométrie de masseIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The composition of fatty spew on leather was determined by gas chromatography-mass spectrometry (GC-MS). Meanwhile, the volatile substances in the fogging test of leather were identified by GC-MS. With the combination of all the data obtained, it was found that the predominant components of fatty spew were palmitic acid methyl ester, oleic acid methyl ester and stearic acid methyl ester, and their relative content ratio is approximately 8 : 1 : 1. An interesting phenomenon was that no fatty acids are detected in fatty spew although they are commonly regarded as the origin of this defect. These facts strongly suggest that the fatty acid methyl esters existing in fatliquors are the main origin of fatty spew defect in leather, and also one of the probable contributions to fogging. En ligne : https://drive.google.com/file/d/1mOQWty7kBC3ZCOVw9QEGKzDCKlIoWnBS/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11716
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 6 (06/2011) . - p. 179-183[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 16697 - Périodique Bibliothèque principale Documentaires Disponible Diagnosing the environmental impacts of typical fatliquors in leather manufacture from life cycle assessment perspective / Yue Yu in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)
[article]
Titre : Diagnosing the environmental impacts of typical fatliquors in leather manufacture from life cycle assessment perspective Type de document : texte imprimé Auteurs : Yue Yu, Auteur ; Qingyong Sun, Auteur ; Yunhang Zeng, Auteur ; Yirui Lin, Auteur ; Ya-Nan Wang, Auteur ; Bi Shi, Auteur Année de publication : 2022 Article en page(s) : 14 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Industrie -- Aspect de l'environnement
Durée de vie (Ingénierie)
Environnement -- Etudes d'impact
Produits de nourriture du cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The environmental impacts of typical fatliquors were diagnosed by the life cycle assessment of industrial production and use (post-tanning) processes. Life cycle impact assessment and sensitivity analysis showed that fatliquor and fatliquoring operation were the major contributors to the environmental impacts of post-tanning because a large amount of fatliquors was consumed during fatliquoring operation. The environmental impacts of fatliquors decreased in the following order: chlorinated paraffin (CP) > sulfonated rape oil (SNR) > sulfated rape oil (SR) > phosphated rape oil (PR) > oxidized–sulfited rape oil (OSR). Sulfuric acid, fuming sulfuric acid, and chlorine used for fatliquor modification gave the main contribution to most impact categories for SR, SNR, and CP production, whereas rape oil contributed the most for PR and OSR production. OSR use process reduced the primary energy demand, abiotic depletion potential, and global warming potential by 38.5%, 56.0%, and 48.5%, respectively, compared with CP use process. These results suggested that biomass-derived fatliquors, especially oxidized–sulfited and phosphate modified fatiliquors, helped reduce the environmental burdens in leather manufacturing. Note de contenu : - MATERIALS AND METHODS : Materials - Goal and scope definition - Functional unit and system boundary - Life cycle inventory analysis - LCIA - Sensitivity and uncertainty analyses
- RESULTS AND DISCUSSION : Environmental impacts of fatliquor production process - Environmental impacts of fatliquor use process - Sensitivity and uncertainty analyses
- Table 1 Description of impact categories
- Table 2 Sensitivities of chemicals, energy, and effluents to impact categories for various fatliquor use processesDOI : https://doi.org/10.1186/s42825-022-00084-5 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-022-00084-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37574
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 4 (Année 2022) . - 14 p.[article]Effect of fatliquoring on grain and corium quality of leather assessed by ball bursting and tearing tests / Albert M. Manich in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 4 (04/2016)
[article]
Titre : Effect of fatliquoring on grain and corium quality of leather assessed by ball bursting and tearing tests Type de document : texte imprimé Auteurs : Albert M. Manich, Auteur ; J. Barneys, Auteur ; L. Martinez, Auteur ; J. Lloria, Auteur ; Agusti Marsal, Auteur Année de publication : 2016 Article en page(s) : p. 127-140 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuirs et peaux -- Propriétés mécaniques
Déchirure (mécanique)
Essais dynamiques
Huiles et graisses
Produits de nourriture du cuir
Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather quality depends largely on the physical, mechanical and organoleptic characteristics of the finished leather from which the final articles are manufactured. Tearing strength and ball burst tests are especially relevant for leather goods that will be subjected to significant tearing and bursting stresses during use.
The influence of different fatliquors on tearing and ball burst tests is studied using wet-blue leathers from Ireland as starting material. Leathers were retanned and dyed following a conventional process and then, they were fatliquored with nine different fatliquoring agents provided by Trumpler Española. A 7% of active matter (on shaved weight) was applied. After a final washing, a sample of the treated leathers was kept in "crust" state (without finishing), and the rest received a light finishing process following a conventional recipe.
To estimate differences between sides, the central parts of them were fatliquored with the same combination used as reference (sulphited triglycerides of rapeseed oil/fatty polymer). The characteristic components of the fatliquoring agents used were a) Soy lecithin, b) Sulphited triglycerides of rapeseed oil, c) Acrylic polymer (waterproofing agent), d) Fatty Polymers (sarcosinates), e) Sulphated triglycerides of rapeseed oil, f) Phosphoric Ester, g) C14 Paraffin, h) Sulphonated paraffin, and i) Sulphited fish oil.
Based on the experimental results, treatments with similar effects on tearing and ball burst test behavior were grouped, clustering the fatliquors with similar effects on these characteristics when compared with the results of the non-fatliquored leather. The effect of finishing has also been studied.Note de contenu : - Crack increase in tearing and energy
- Bursting behavior, grain crack and energy
- ObjectivesEn ligne : https://drive.google.com/file/d/1DrXjtrgPwuKzCha7l3x4BBKSRmT45vV8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25992
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 4 (04/2016) . - p. 127-140[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17930 - Périodique Bibliothèque principale Documentaires Disponible Effect of fatliquoring on leather comfort. Part III : Moisture absorption-desorption of leather / Albert M. Manich in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 10 (10/2017)
[article]
Titre : Effect of fatliquoring on leather comfort. Part III : Moisture absorption-desorption of leather Type de document : texte imprimé Auteurs : Albert M. Manich, Auteur ; Joan Barenys, Auteur ; L. Martinez, Auteur ; J. Lloria, Auteur ; Josep Carilla, Auteur ; Agusti Marsal, Auteur Année de publication : 2017 Article en page(s) : p. 347-355 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorption
Désorption
Huiles et graisses
Humidité
Produits de nourriture du cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The comfort of tanned hide/skin is an added value, which is decisive for the choice of leather in articles for footwear or clothing, compared to other alternatives whose design excludes this component. This comfort is related to the capacity of absorption and desorption of moisture and with the physical, mechanical and organoleptic characteristics of the leather. After tanning, fatliquoring and retanning are the operations that more intensively modify the characteristics of leather articles.
This work is a continuation of two previous ones that have studied the influence of fatliquoring on softness and compressibility of leather and on grain and corium quality of leather assessed by ball bursting and tearing tests. In this case, the effect of fatliquoring on moisture absorption-desorption characteristics of leather is studied. The experimental work has been carried out in the pilot plant of Trumpler Española S. A. and the moisture absorption-desorption tests in the Laboratory of Thermal Analysis and Calorimetry of the IQAC. The behavior of non-fatliquored leather and that of leather fatliquored with a combination of sulphited triglycerides of colza oil and fatty polymer (TCSi/PGR) or fatliquored separately with their components TCSi and PGR, or with phosphoric ester ESF or sulphited fish oil Psi has been determined.
The determination of the size of the moisture absorbing monolayer (Xm), the binding energy constants of the monolayer C and the multilayer K, the maximum absorption capacity at saturation X1 and the hysteresis (Hyst.) between absorption and desorption, enabled us to classify the different fatliquoring agents according to stage (crust-blue, finished-red) by applying factorial analysis (see following graph). Finishing is the factor that best explains this behavior. Finishing decreases the size of the monolayer and increases the binding energy constants. Fatliquoring decreases the maximum absorption capacity and hysteresis, partially affecting the reduction of the monolayer size.Note de contenu : - INTRODUCTION : Absorption isotherms - Objective
- METHODS : Calculation of absorption and desorption isotherms - Specific surface of absorption - Hysteresis
- DISCUSSION : Monolayer size - Binding energy constant of the monolayer - Binding energy constant of the multilayer - Average hysteresis and maximum absorption capacity at saturation - Size of the absorption monolayer and apparent density - Ration between monolayer size estimations in desorption and absorption, and the mean hysteresis - Relationship between moisture absorption/desorption characteristics and tearing energyEn ligne : https://drive.google.com/file/d/1YhPToI0K4j6ES-VmHsYYK5P_PJn--Rx1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29249
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 10 (10/2017) . - p. 347-355[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 19286 - Périodique Bibliothèque principale Documentaires Disponible Effect of specific additives on the degree of sulfonation and its influence on leather fatliquoring / R. Janardhanan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 9 (09/2012)
[article]
Titre : Effect of specific additives on the degree of sulfonation and its influence on leather fatliquoring Type de document : texte imprimé Auteurs : R. Janardhanan, Auteur ; V. Vijayabaskar, Auteur ; B. S. R. Reddy, Auteur Année de publication : 2012 Article en page(s) : p. 279-285 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Additifs
Catalyse par transfert de phase
Cuirs et peaux
Emulsifiants
Mouillage (chimie des surfaces)
Potentiel zeta
Produits de nourriture du cuir
Sulfonation
Sulfosuccinates
Surfactants
Tension superficielleIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Sulfosuccinate type anionic surfactants are classical ingredients for industrial applications. They are of great interest because of their excellent surfactant properties. Fatliquors prepared from sulfosuccinates have been effectively utilized in the leather industry, where the degree of sulfonation of the surfactant plays a crucial role in deciding performance. This paper reports on the study of factors such as the addition of phase transfer catalyst, non-ionic wetting emulsifier and co-solvent on the degree of sulfonation. Emusification power, zeta potential, surface tension and particle size were measured. Reaction conditions were optimized, based on the results. Fatliquors were prepared using different sulfosuccinates and applied on leather. The properties of resultant leathers were studied qualitatively and quantitatively, and SEM studies were carried out for the treated leathers. This work provides a basis for the development of better fatliquoring agents. Note de contenu : - MATERIALS AND METHODS : Materials - Control batch - Experiment 1 (E1 - Addition 5% phase transfer catalyst) - Experiment 2 (E2 - Addition 5% non-ionic emulsifier) - Experiment 3 (E3 - Addition 5% co-solvent) - Application on leather - Characterisation methods
- PROPERTIES OF RESULTANT LEATHER
- SEM STUDIES
- DISCUSSION : Sulfonate content of the surfactants - Effect of co-solvent - Effect of emulsifier - Effect of phase transfer catalyst - Properties of sulfosuccinates - Properties of resultant leathersEn ligne : https://drive.google.com/file/d/1fV7HN44YCVqzM67LrDl2HHYBnbANX-r3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16058
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVII, N° 9 (09/2012) . - p. 279-285[article]Réservation
Réserver ce document
Exemplaires (2)
Code-barres Cote Support Localisation Section Disponibilité 14267 - Périodique Bibliothèque principale Documentaires Disponible 14209 - Périodique Bibliothèque principale Documentaires Disponible Evaluation and improvement of the oxidative stability of leather fatliquors / Yue Yu in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
PermalinkEvaluation of a mixture of castor oil and polyvinylpyrrolidone for the lubrication of dry / Gomaa Abdel-Maksoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 106, N° 1 (01-02/2022)
PermalinkPermalinkFatliquor effects on collagen fibril orientation and D-spacing in leather during tensile strain / Katie H. Sizeland in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 11 (11/2015)
PermalinkPermalinkFungus-resistant fatliquor from blended natural oils - A sustainable lubricating product / Bindia Sahu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 9 (09/2020)
PermalinkPermalinkPermalinkPermalinkIKW quality assessment recommendation : compatibility of shoe uppers with care products (2015) / German Cosmetic, Toiletry, Perfumery and Detergent Association (IKW) (Mainzer Landstrasse 55, Frankfurt am Main, Germany) in SOFW JOURNAL, Vol. 142, N° 3 (03/2016)
PermalinkImperméabilisation du cuir à semelle / P. L. Muthiah in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXIII (Année 1971)
PermalinkIn-depth understanding of the leather fatliquoring process : A review / M. A. Habib in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 106, N° 1 (01-02/2022)
PermalinkInfluence de l'effet thermique du plaquage sur l'hydrophilie du cuir au chrome nourri / Jean Poré in TECHNICUIR, N° 6 (06-07/1978)
PermalinkInfluence of different products on wet finishing for leather properties and waste generation / Laisa Grassi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIX, N° 3 (03/2024)
PermalinkInteraction between amphoteric polymer and silicic acid tanned leather : Ingenious regulation of ph based on isoelectric point / Ze Liang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 10 (10/2023)
Permalink