Accueil
Détail de l'indexation
675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
Ajouter le résultat dans votre panier Affiner la recherche
Effect of pickling materials on leather quality from a hide surface charge perspective / Tianqi Yang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 7 (07/2022)
[article]
Titre : Effect of pickling materials on leather quality from a hide surface charge perspective Type de document : texte imprimé Auteurs : Tianqi Yang, Auteur ; Yunhang Zeng, Auteur ; Qingyong Sun, Auteur ; Chao Lei, Auteur ; Bi Shi, Auteur Année de publication : 2022 Article en page(s) : p. 279-287 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Composés aromatiques
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Propriétés physiques
Pénétration cutanée
PicklageLe picklage consiste à faire absorber à la peau en tripe une quantité importante d'acide, en présence de sel neutre (NaCl) pour réprimer le gonflement que provoquerait l'acidité du milieu.
Sulfoniques, Acides
Tannage au chrome
Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Salt-free pickling technology has recently received increased attention because it produces much lower salt pollution than the conventional pickling technology using formic acid, sulfuric acid, and sodium chloride. However, the existing salt-free pickling materials, for instance, aromatic sulfonic acids (ASAs), lead to reduced leather quality and the reason behind this phenomenon is unclear. In this study, we explored how ASAs affect the properties of tanned leather. Results showed that typical ASAs, such as 5-sulfosalicylic acid, 1,5-naphthalenedisulfonic acid, and 2-naphthalenesulfonic acid, penetrated cattle hide more slowly compared with formic and sulfuric acids because of their large molecular weight and strong intermolecular interactions with hide collagen. ASAs decreased the positive charge of the pickled hide via interactions with their sulfonic acid groups, resulting in the increased adsorption rate of chrome tanning agent to the hide surface. Rapid tanning agent adsorption could impede the deep penetration and uniform distribution of the agent in the ASA-pickled hide. Thus, the properties of wet blues and crust leathers pickled with ASAs are inferior to those of wet blue and crust leather pickled using conventional pickling materials. Our results indicate that a strongly positive charge of the pickled hide is vital to obtaining high-quality leather and provide insights into salt-free pickling materials from a hide surface charge perspective. Note de contenu : - EXPERIMENTAL : Materials - Pickling experiments - Analyses of pickling performance - Analyses of chrome tanning performance - Determination of the physical properties of crust leather
- RESULTS AND DISCUSSION : Penetration of various acids into hide - Surface charge properties of hides pickled with various acids - Hydrothermal stability and fiber dispersion of hides pickled with various acids - Effect of pickling materials on chrome tanning performance - Effect of pickling materials on the physical properties of crust leathers
- Table 1 : Pickling and chrome tanning processes
- Table 2 : Pseudo-first-order and pseudo-second-order kinetic parameters for chrome adsorption
- Table 3 : Physical properties of crust leathersDOI : https://doi.org/10.34314/jalca.v117i7.5962 En ligne : https://drive.google.com/file/d/1UhajIthtPvDv2bquUbfxlI9pj2WugNC8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37820
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 7 (07/2022) . - p. 279-287[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23515 - Périodique Bibliothèque principale Documentaires Disponible Effect of pigment-acrylic binder ratio on the surface and physical properties of resin finished leather / Suriya Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIX, N° 1 (01/2024)
[article]
Titre : Effect of pigment-acrylic binder ratio on the surface and physical properties of resin finished leather Type de document : texte imprimé Auteurs : Suriya Madhan, Auteur ; Mishamo Wakaso, Auteur ; Sathya Ramalingam, Auteur ; Swarna Vinodh Kanth, Auteur Année de publication : 2024 Article en page(s) : p. 20-30 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Angle de contact
Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés organoleptiques
Cuirs et peaux -- Propriétés physiques
Formulation (Génie chimique)
Liants
PolyacryliquesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The current study attempts to investigate the surface phenomenon and physical characteristics of leather finished with brown pigment and different types of acrylic binders. Using the contact angle measurements of three different liquids on the above finished leathers and films, the surface energy and work of adhesion were evaluated. The pigment to acrylic binder ratio (PABR) for best adhesion of finish film on the leather surface was optimized using the contact angle goniometer. Different types of acrylic binder films were coated and their surface behaviour was studied. The crust leather was coated with different types of pigment-acrylic binder (Very Soft, Soft and Medium Soft) finish formulations. The contact angle of both the acrylic films and the PABR finished leathers were measured against Water, Dimethyl sulfoxide (DMSO) and Hexadecane (HD). According to the study’s results, the surface properties of finished leather were directly related to the degree of wetting. The PABR was found to be effective at 1:3 for very soft binder, 1:2.5 for soft, 1:2 for medium soft binders due to higher contact angle and lower surface energy values (γsv). At 1:3 and 1:2.5, the contact angle of very soft and soft binder leather was 82.62° and 83.45° and for medium soft binder it was 82.67° at 1:2 ratio. The surface energy values of optimized PABR of very soft binder (1:3) was 28.29 (mN/M), soft binder (1:2.5) was 27.50 (mN/m) and medium soft binder (1:2) was 29.27 (mN/m). The optimized PABR work of adhesion values of very soft binder, soft binder and medium soft binder was 82.15 (mJm-2), 81.11 (mJm-2), 82.09 (mJm-2). In order to correlate the observed surface properties with leather finish properties, finished leathers were tested for finish adhesion, vamp flexing value, water vapour permeability, wet and dry rub fastness. According to the water vapour permeability, soft and medium binder showed good permeation due to the uncovering of nanopores. But the adhesion, grain crack resistance and grain smoothness were higher in the case of the soft binder. Overall leather properties divulges that the pigment to binder ratio and the type of binder plays an important role in surface properties of the finished leather. This study enables us to determine the optimal PABR for effective finish properties to meet the required leather standards for various usage, as well as better utilisation of finishing chemicals. Note de contenu : - MATERIALS AND METHOD : Materials - method : Finish formulation preparation - Finished upper leather preparation - Acrylic binder film preparation - Determination of contact angle - Measurement of work of adhesion - Measurement of adhesion of finish - Determination of flexing endurance - Determination of wet and dry rub fastness - Determination of water-vapor permeability - Determination of physical strength characteristics - Determination of organoleptic properties
- RESULTS AND DISCUSSION : Contact angle and surface energy and work of adhesion parameters of different acrylic binder films - Correlation between surface energy and work of adhesion parameters for various PABR of very soft binder - Correlation between surface energy and work of adhesion parameters for various PABR of soft binder - Correlation between surface energy and work of adhesion parameters for various PABR of medium soft binder - Water vapor permeability - Finish adhesion properties of finished leather - Organoleptic properties analysis
- Table 1 : Characteristics of the binder chosen for finishing application
- Table 2 : Finish formulations prepared at a varied concentration of different acrylic binder
- Table 3 : Contact angle and surface energy and work of adhesion value for binder coated on a microscopic slide
- Table 4 : Contact angle and surface energy and work of adhesion values for vaious PABR of very soft binder
- Table 5 : Contact angle and surface energy and work of adhesion values for various PABR of soft binder
- Table 6 : Contact angle and surface energy and work of adhesion values for various PABR of medium soft binder
- Table 7 : Adhesion properties of optimum PABR of various binder
- Table 8 : Organoleptic properties of optimum PABR of various binderDOI : https://doi.org/10.34314/jalca.v119i1.8291 En ligne : https://drive.google.com/file/d/1W93p1wv9mAcBRQf17cZQViw7-2kk6Jpb/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40346
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIX, N° 1 (01/2024) . - p. 20-30[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24402 - Périodique Bibliothèque principale Documentaires Disponible Effect of skin type and direction of applied force on peel strength of skin layers / T. P. Ferrà ndiz-Gomez in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 77, N° 4 (07-08/1993)
[article]
Titre : Effect of skin type and direction of applied force on peel strength of skin layers Type de document : texte imprimé Auteurs : T. P. Ferrà ndiz-Gomez, Auteur ; M. Almela, Auteur ; J. M. Martin-Martinez, Auteur ; Fernando Maldonado, Auteur ; A. C. Orgilés-Barcelo, Auteur Année de publication : 1993 Article en page(s) : p. 115-122 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Cohesive peel strengths of goat, ovine and bovine leathers have been determined by measuring the peel strength at 90° of leather-rigid polyvinylchloride joints which were bonded with a polyurethane adhesive. Differences in cohesion between different zones of each leather, as well as between the different directions and senses in which peel tests were carried out, showed up in all the leathers except ovine leather. The quantitative differences in peel strength can be attributed to the structural characteristics of each leather, and especially to the arrangement of the collagen fibres in the grain layer. Thus the belly and shoulder zones had the best cohesive properties. On the other hand, the consistency of the grain layer was smaller than that the corium layer, which had the strongest cohesion. Therefore in order to achieve sufficient adhesion in shoe making for example it is necessary to eliminate, by roughing, successive layers until the grain-corium interface is reached. En ligne : https://drive.google.com/file/d/1Ndhjld0hYL7w71eQFZ4M3nXtw2oPXOko/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8473
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 77, N° 4 (07-08/1993) . - p. 115-122[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 006993 - 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 Effect of strain rate on crosslinked collagen fibres / V. Arumugam in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 79, N° 5 (09-10/1995)
[article]
Titre : Effect of strain rate on crosslinked collagen fibres Type de document : texte imprimé Auteurs : V. Arumugam, Auteur ; M. D. Naresh, Auteur ; N. Somanathan ; R. Sanjeevi Année de publication : 1995 Article en page(s) : p. 143-147 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Mechanical properties such as stress-strain relationships, plastic set and fracture behaviour were studied for chrome and formaldehyde tanned collagen fibres. The stress-strain and fracture behaviour were found to be different from that of untanned collagen fibres, whereas the plastic set showed only marginal differences. The morphology of the fractured ends of the fibres tested at different strain rates was studied using scanning electron microscopy. An attempt has been made to clarify the different patterns of the cross-linked collagen fibres. En ligne : https://drive.google.com/file/d/16RDd4Y9rRYNbrPTKou6rRPkR0fG2xg8n/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8200
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 79, N° 5 (09-10/1995) . - p. 143-147[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 007006 - Périodique Bibliothèque principale Documentaires Disponible Effect of temperature on moisture-penetrability and breathability of natural leather from microstructure / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
PermalinkEffect of temperature, relative humidity and UV radiation on wet-bright leather ageing / Anna Bacardit in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 5 (09-10/2017)
PermalinkEffect of the composition of vinyl polymer tannages on the physical properties of leather / Jianzhong Ma in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 1 (01/2001)
PermalinkEffect of the removal method of hide powder on the porous properties of nanoporous silice / Satoru Dohshi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 2 (03-04/2012)
PermalinkEffect of UV irradiation of the properties of goatskin collagen matrices in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 2 (03-04/2017)
PermalinkEffect of various alkalinity-inducing agents on chemical and physical properties of protein products isolated from chromium-containing leather waste / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIX, N° 7 (07/1994)
PermalinkEffect of vinyl acetate grafting on the dyeability of chrome leather / O. A. Mohamed in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 6 (11-12/2004)
PermalinkEffective component in a-amylase preparation for unhairing / Yunhang Zeng in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 3 (03/2013)
PermalinkEffective removal of manure-mud balls from cattle hides using thioglycolate salt containing formulations / Hailemichael O. Yosief in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 9 (09/2022)
PermalinkEffects of alkali and acid on the solubility and molecular weight of collagen hydrolysates extracted from bovine hide in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 10 (10/2022)
PermalinkEffects of atmospheric pressure plasma treatments on various properties of leathers / Safiye Meric Acikel in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 7 (07/2013)
PermalinkEffects of bactericide-protease interactions on the protease-assisted soaking performance / Hao Liu in COLLAGEN AND LEATHER, Vol. 5 (2023)
PermalinkEffects of beaming and tanning on collagen stability, studied by differential scanning calorimetry / Paul L. Kronick in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXI (Année 1986)
PermalinkEffects of calcium content on the enzymatic bating of delimed hides / Chunxiao Zhang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 12 (12/2022)
PermalinkEffects of a clean subcritical degreasing system on wool fibers / Qiao Xia in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 5 (05/2021)
PermalinkEffects of dehydration methods on the characteristics of fibrous networks from un-tanned hides / Cheng-Kung Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 3 (03/2012)
PermalinkEffects of drying processes and fatliquoring on resiliency of leather / Cheng-Kung Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 2 (02/2007)
PermalinkEffects of dynavac stretch on leather at different points in the process / Johann Gilet in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
PermalinkEffects of fatliquor on vacuum drying of leather / Cheng-Kung Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 7 (07/2002)
PermalinkEffects of fibre pore status on hot-wet comfort of sheep garment leather / Wang Lixin in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 3 (05-06/2014)
Permalink