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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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New acrylate retan agents / Anton El A'mma in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCV, N° 1 (01/2000)
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Titre : New acrylate retan agents Type de document : texte imprimé Auteurs : Anton El A'mma, Auteur Année de publication : 2000 Article en page(s) : p. 19-24 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : New anionic (meth)acrylate copolymers are explored as retanning agents. They are chemically derived from (meth)acrylic acids and neutral (meth)acrylate or vinyl esters. The polymers are applied to leather in designed experiments. An analysis of variance of the leather performance data indicates that significant differences exist between polymer treatments. These analyses allow us to reliably determine the retans' balance of value-added properties, i.e., filling, softness, strength, and break. The new anionic polymers also show a sustained tendency to intensify the dye shade of leather, like amphoteric polymers but with better processing flexibility. En ligne : https://drive.google.com/file/d/1kIdF3hcVPhkyEiIcG8lWz4yQesnlTrhD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4407
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCV, N° 1 (01/2000) . - p. 19-24[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006980 - Périodique Bibliothèque principale Documentaires Disponible New acrylic technologies in leather finishing / Christopher J. Gill in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), LXXXVII, N° 3 (03/1992)
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Titre : New acrylic technologies in leather finishing Type de document : texte imprimé Auteurs : Christopher J. Gill, Auteur Année de publication : 1992 Article en page(s) : p. 82-87 Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Acrylic polymers have gone through a technological evolution over the past 10 years. Historically, first generation acrylics have found a natural application as basecoat binders because of their excellent adhesion, molding and natural appearance. But, these acrylics, despite their strengths, tended to be tacky in soft finishes and usually required drying additives. Second generation acrylics were designed to eliminate room temperature tack, thus assisting in piling and preventing dirt pick-up, but often required plating coats to improve plate release.
Thirdgeneration acrylics now use a new technology that allows them to be low in tack at both room temperature and at plating temperatures, without compromising molding or adhesion.
Today, we see available to the finisher a wide array of low VOC acrylic technologies, gaining access to markets on performance not just low cost. Such acrylics rae being used in a number of new applications: plating coats, automotive finishes, high-flex basecoats for splits and highly water resistant finishes.En ligne : https://drive.google.com/file/d/1vqLu9ptxWao_0CJGJsSLQX8ldgg1HTgI/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8320
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > LXXXVII, N° 3 (03/1992) . - p. 82-87[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006891 - Périodique Bibliothèque principale Documentaires Disponible A new antifungal agent for the leather industry : S-Hexyl-S'-Chloromethyl-cyanodithiocarbimate (CHED) / Stephen D. Bryant in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 1 (01-02/2011)
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Titre : A new antifungal agent for the leather industry : S-Hexyl-S'-Chloromethyl-cyanodithiocarbimate (CHED) Type de document : texte imprimé Auteurs : Stephen D. Bryant, Auteur ; Elton L. Hurlow, Auteur ; Marilyn Whittemore, Auteur Année de publication : 2011 Article en page(s) : p. 7-10 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antifongiques
Cuirs et peaux -- Conservation
CyanodithiocarbimatesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Raw hides are a rich source of fats and proteins that may serve as metabolic substrates for micro-organisms, especially bacteria and fungi. These micro-organisms that are capable of invading the hide for its nutrients are present on the fresh hide during harvest as well as from the surrounding environment during and after processing at the tanner. Fungal attack on tanned collagen changes the chemical composition of the pelt in the area of growth. These changes along with fungal pigmentation will usually cause discolouration or spots or various colours depending on the infesting organism. This fungal discolouration is difficult to correct and can spoil crust or finished leather. To protect tanned hides (such as wet-blues, vegetable-tanned, free-of-chrome, or oil-tanned lathers), a fungicide is added during the pickle or tanning process. The fungicide must survive the conditions of tannage and adhere to the surface of the tanned hide to protect the leather from the time the tanningprocess is complete until the tanned hide is processed further and finished into a dry leather product. In order to be effective for the leather industry the fungicide should be stable under acid conditions, reasonably stable to UV-light, relatively unreactive with other tanning process chemicals, andhave a high affinity for the hide or skin substrate.
Historically the leather industry made use of chemistries such as organomercurials and chlorophenates which are now banned because of high level dangers regarding environment and human exposure. In recent decades these have been replaced with effective and safer chemistries such as : 2-(thiocyanomethylthio)bentothiazole (TCMTB), 3-iodopropynylbutylcarbamate (IPCB), n-octylisothiazolinone (OIT), diiodomethyl-p-tolylsulfone (DIMTS), and some phenolics.
A needs exists in the leather industry for new compounds that not only are effective fungicides, but also survive the chemical environment of the tanning process. In addition, a valuable strategy for microorganism control is to combine two ormore microbicides to expand the spectrum of control as well as to exploit potential synergies in the biocidal actions This paper describes chemical, biological, and toxicological properties of a new antifungal compound in a class of chemistry known as cyanodithiocarbimates. A patent for the use of this chemistry as a fungicide in the lather industry has been granted.En ligne : https://drive.google.com/file/d/13WPPwLTSkbZpqPvi5mpRyBNX55JUWBD7/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10814
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 95, N° 1 (01-02/2011) . - p. 7-10[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012825 - Périodique Bibliothèque principale Documentaires Disponible New antimicrobial complex of copper (II) with benzothiazole derivative : synthesis and application in leather industry / Haibin Gu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 3 (03/2008)
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Titre : New antimicrobial complex of copper (II) with benzothiazole derivative : synthesis and application in leather industry Type de document : texte imprimé Auteurs : Haibin Gu, Auteur ; Xia Hao ; Changqing Zhao ; Wuyong Chen, Auteur Année de publication : 2008 Article en page(s) : p. 114 - 118 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather goods, especially leather shoes, are often damaged by microorganism and their antimicrobial performances are increasing demanded. However, the normal leather fungicides can not meet the requirement to the antimicrobial agents used in the leather goods; it is significant to develop an effective, harmless and broad-spectrum antimicrobial compound for leather goods. In this study, a novel ligand, 4-[(2-benzothiazolylimino) methyl] phenoxyacetic acid (HL), was prepared by 2-amino benzothiazole and 4-formyl phenoxyacetic acid in absolute ethyl alcohol and the copper complex was synthesized by HL and copper acetate in ethanol at 65℃. The chemical structures of the ligand and copper complex were characterized by elementary analysis, UV, IR, and 1H NMR. Results show that the copper ion coordinate with two oxygen atoms of phenoxyl and carboxyl in the ligand and two stable pentagonal rings are formed. The antimicrobial activity of the complex against representative species of bacteria and fungi isolated from leather shoes was assessed by the determination of minimal inhibitory concentrations (MICs). Results show that MICs of the copper complex were 100-200 mg L-1 to bacteria, 1-50 mg L-1 to moulds and 1 mg L-1 to yeasts, respectively. The copper complex with the concentration of 0.5-7.5 g L-1 in acetone was applied to shoe lining, and the inhibitory effects of the treated shoe lining were evaluated by inhibition zone method, plate culture medium method and inhibition ratio method. Results indicate that the shoe lining fabric containing more than 27.03 g kg-1 of the antimicrobial compound can form clear inhibition zones with diameters of 25-55 mm, inhibit the growth of microorganism after inoculated on plate culture mediums and achieve more than 90% inhibition ratio. So, the new complex is a potential compound as a leather antimicrobial agent. En ligne : https://drive.google.com/file/d/1K-T0iSwLq8C4bsR1vTFuFDv9oWWt8PCS/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2579
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 3 (03/2008) . - p. 114 - 118[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 009925 - Périodique Bibliothèque principale Documentaires Disponible A new approach for bating : reactive red 120 dye atached poly(hema) nanoparticles / Safiye Meric Acikel in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 2 (03-04/2019)
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Titre : A new approach for bating : reactive red 120 dye atached poly(hema) nanoparticles Type de document : texte imprimé Auteurs : Safiye Meric Acikel, Auteur ; Ahmet Aslan, Auteur ; Evren Türker, Auteur ; Sinan Akgöl, Auteur Année de publication : 2019 Article en page(s) : p. 99-107 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption
Albumine
Colorants réactifs
ConfitageLe confitage est une action biochimique effectuée au moyen de produits enzymatiques, qui a pour but de dégrader les fibres élastiques, contribuant ainsi à augmenter la souplesse du cuir. En outre, les enzymes complètent la dégradation des résidus épidermiques, donnant ainsi une fleur plus propre et plus lisse.
Globuline
Nanoparticules
Polymérisation en émulsion
Polyméthacrylate d'hydroxyéthyleIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In the present work, Reactive Red 120-attached poly (2-hydroxy ethyl methacrylate) nanoparticles (PHEMA-RR120) were synthesized as an adsorbent for the removal of the proteins albumin and globulin. PHEMA nanoparticles were first prepared by surfactant-free emulsion polymerisation. The dye ligand Reactive Red 120 was chemically attached to the PHEMA nanoparticles via a nucleophilic substitution reaction. Characterisation of the PHEMA-RR120 nanoparticles was carried out by specific surface area, dry mass weight of the nanoparticle, SEM, FTIR and Zeta Size analysis. Albumin and globulin adsorption of PHEMA-RR120 nanoparticles was investigated with respect to process conditions (temperature, pH, time, initial concentration and ionic strength), and the re-usability of PHEMA-RR120 was also determined. The albumin and globulin protein adsorption of PHEMA-RR120 nanoparticles was found to be respectively 24.60g/g and 3.95g/g at 25°C, 12.58g/g and 3.86g/g at 37°C, 11.45g/g and 2.69g/g at 45°C. The results show that PHEMA-RR120 nanoparticles can be used for the effective, reusable removal of albumin and globulin due to their large surface area and high adsorption capacity. Note de contenu : - MATERIALS AND METHODS : Materials - Methods - Protein adsorption of PHEMA-RR120 nanoparticle - Desorption and repeated use of PHEMA-RR120 nanoparticles
- RESULTS AND DISCUSSION : Characterisation of PHEMA-RR120 nanoparticle - Protein adsorption of pHEMA-RR120 nanoparticles - Desorption and reusability of PHEMA-RR120En ligne : https://drive.google.com/file/d/1A5jNL1tigHfTvK08s1fTvsdNLCe-TwEZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32307
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 2 (03-04/2019) . - p. 99-107[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20855 - Périodique Bibliothèque principale Documentaires Disponible A new approach to less-salt preservation of raw skin/hide / James Kanagaraj in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCV, N° 10 (12/2000)
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PermalinkA new approach to the synthesis and formulation of 2-(thiocyanomethylthio)-benzothiazole / L. Muthusubramanian in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 81, N° 4 (07-08/1997)
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PermalinkA new approach to the synthesis of bromochloromethane as a biocide intermediate / L. Muthusubramanian in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 1 (01-02/2005)
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PermalinkPermalinkNew challenges in chrome-free leathers : development of wet-bright process / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIX, N° 4 (04/2014)
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PermalinkA new chromium-zinc tanning agent : a viable option for less chrome technology / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 5 (05/2002)
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PermalinkA new defect on leather : microbial bio-film / B. H. Cadirci in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 4 (04/2010)
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PermalinkA new depigmentation and fiber opening method for the conversion of stingray skins into leathers / R. Karthikeyan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 1 (01/2011)
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PermalinkNew developments in lubricating acrylic syntans - Technical note / Anton El A'mma in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVIII, N° 9 (09/1993)
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PermalinkNew developments in water-borne polyurethane dispersions - Technical note / J. Levy in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIX, N° 3 (03/1994)
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PermalinkA new drying application of garment leather / Sergio Alonso in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 1 (01-02/2014)
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PermalinkA new enzyme process for improved yield and softer leather technical note / Mihai Deselnicu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIX, N° 11 (11/1994)
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PermalinkNew evolution in the manufacture of side leather / Marcel Siegler in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXIX (Année 1974)
PermalinkPermalinkNew formula in LEATHER INTERNATIONAL, Vol. 216, N° 4842 (07/2014)
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