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Process vessels : effects within chemical processing / Richard Daniels in WORLD LEATHER, Vol. 18, N° 6 (10/2005)
[article]
Titre : Process vessels : effects within chemical processing Type de document : texte imprimé Auteurs : Richard Daniels, Auteur ; Walter Landmann, Auteur Année de publication : 2007 Article en page(s) : p. 36-37 Langues : Anglais (eng) Catégories : Peaux brutes
Traitement chimiqueIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The relationship between the processing vessel, raw mate rials and chemical procedure is intimate. Ultimately rhe needs of hides and skins within wet processing are developed—and limited—by the characterisrics of rhe vessel.
The most common pieces of equipment are drums, but significant differences in behaviour are found within the wide range of processing vessels that are available. Notwithstanding, must variations can be understood by considering effects common to drum and paddles. These include combinations that relate to the float level and mechanical action, the movement of hides and skins, and the distribution of chemicals.Note de contenu : - Float levels and mechanical action : The need for good penetration
- Shape and movement : The teasing action of pegs - Minimising tangling and formation of knots - The uniform application of force
- The distribution of chemicals
- The value of cross-circulation
- Balancing quality and efficiency
- Addressing the limitations of raw materials
- Additional information
- Panel 1 : The benefits of processing pieces of uniform shape
- Panel 2 : Mechanical action to suit the changing needs of hides and skins
En ligne : https://drive.google.com/file/d/1LwTW95n7AiLH-EVGYviX7JXFQFLHwWzR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32480
in WORLD LEATHER > Vol. 18, N° 6 (10/2005) . - p. 36-37[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006186 - Périodique Bibliothèque principale Documentaires Disponible Processing of amazon catfish skins - dourada (brachyplathstoma sp.) and piraiba (brachyplatystoma sp.) / Joao Antonio Pessoa da Silva in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 4 (07-08/2017)
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Titre : Processing of amazon catfish skins - dourada (brachyplathstoma sp.) and piraiba (brachyplatystoma sp.) Type de document : texte imprimé Auteurs : Joao Antonio Pessoa da Silva, Auteur ; Crislaine Fabiana Bertoldi, Auteur ; Aline de Cassia Campos Pena, Auteur ; Manoel Rodrigues da Silva, Auteur ; Mariliz Gutterres, Auteur Année de publication : 2017 Article en page(s) : p. 190-194 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Cuirs et peaux -- Analyse
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de Poissons
Déchets organiques -- Recyclage
Microscopie
Tannage au chromeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this work, Piraiba and Daurade skin wastes were used for leather processing. They were initially stripped and characterized by their percentage composition. The results showed that pH, differential pH cipher [SLC13/ WC 111 BS 1309:9 — Determination of pH value and Difference Figure of an Advenus Extract], chromium content and mechanical properties after chromium tanning were in accord with leather specifications. Further results demonstrate that the tensile and tear strength of the leather varied depending on the direction of the collagen fibres. Microscopic analysis allowed us to verify that the fibre structure is interlaced and compact. This work also determined that the shrinkage temperatures, as measured by DSC were 98.24 and 104.06°C for Dourada and Piraiba leather, respectively, In conclusion, the characterization demonstrated the feasibility of using waste skins of Piraiba and Daurade for leather processing, adding value to a sub-product of fish processing. Note de contenu : - Skin preparation and leather processing
- TABLES : 1. Formulation for processing fishkins - 2. Composition of fishskins - 3. Properties of fish leathers - 4. Physical and mechanical properties of fish leathers - 4. Thickness and tear strengthof fish leathers
- FIGURES : 1. Optical microscopy of the Dourada and Piraiba leather surface observed in stereomicroscope (70x) - 2. DSC curves of the fish leathersEn ligne : https://drive.google.com/file/d/1Wu55cCDvpoMitd1qC7tvylOUTsiuAO_v/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28893
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 4 (07-08/2017) . - p. 190-194[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19176 - Périodique Bibliothèque principale Documentaires Disponible Processing of collagenic residues. Isolation of gelatin by the action of peroxochromates / Jaime Cot in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIV, N° 4 (06/1999)
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Titre : Processing of collagenic residues. Isolation of gelatin by the action of peroxochromates Type de document : texte imprimé Auteurs : Jaime Cot, Auteur ; Albert M. Manich, Auteur ; Agusti Marsal, Auteur ; Maria Fort, Auteur ; Pedro J. Celma, Auteur ; Robert Carrio, Auteur ; Rigoberto Choque, Auteur ; Luisa F. Cabeza, Auteur Année de publication : 1999 Article en page(s) : p. 115-128 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The experience of our research group with topics related to the dechroming(III) to chromium(VI) by peroxides in alkaline conditions, allowed us to know in-depth the reaction mechanisms. The formation in situ of some peroxochromates (containing up to 2,5 groups peroxo for each atom of chromium), unstable and with a great owidizing potential, is fundamental in the process of gelatin isolation. It has been demonstrated that the chromium-containing collagenic wastes that had bee previously dechromed by this method produce a gelatin with better yield, quality and in a much shorter treatment, compared with conventional methods described in the literaure. The residual chrome content in the gelatin can be eliminated using tangencial ultrafiltration and the reverse osmosis techniques. Furthermore, the chromium (VI) is recovered by ion-exchange resins and can be re-used in tanneries. Finally, physico-chemical characteristics of the isolated gelatins were evaluated. Note de contenu : - EXPERIMENTAL : First experimental design - Second experimental design - Activity of the peroxochromates generated in situ
- RESULTS AND DISCUSSION : Applications of the isolated gelatin - Future perpectivesEn ligne : https://drive.google.com/file/d/1mf5XWt0cvDqFdzZhQVdLcmbnTosrgp3h/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4455
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIV, N° 4 (06/1999) . - p. 115-128[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006974 - Périodique Bibliothèque principale Documentaires Disponible Procter memorial lecture advances in the science of colour vision / K. McLaren in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 74 (Année 1990)
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Titre : Procter memorial lecture advances in the science of colour vision Type de document : texte imprimé Auteurs : K. McLaren, Auteur Année de publication : 1990 Article en page(s) : p. 67-73 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Colour, like beauty, is in the eye of the beholder and the eye is part of the brain. During the last forty years remarkable advances have been made into discovering what happens when light falling on the retina of the eye results in seeing. During the last three hundred years many theories have been put forward to explain how colours are perceived. Some of these have been influential in these investigations and they will be described : others such as those of Goethe and Brewster are universally rejected and will not be described. En ligne : https://drive.google.com/file/d/1HwqsRLwjaM8Z9Atwr-kbATp3oDfpgQov/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8761
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Code-barres Cote Support Localisation Section Disponibilité 007137 - Périodique Bibliothèque principale Documentaires Disponible Procter memorial lecture collagen, 1891-1977 : retrospect and prospect / Alan Gordon Ward in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 62, N° 1 (01-02/1978)
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Titre : Procter memorial lecture collagen, 1891-1977 : retrospect and prospect Type de document : texte imprimé Auteurs : Alan Gordon Ward, Auteur Année de publication : 1978 Article en page(s) : p. 1-13 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Collagène
Cuirs et peauxIndex. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : - 1895-1925. The origins of collagen research
- 1925-1955. Laying the foundation
- 1955-1977. The edifice takes shape
- Table 1 : Amino acid composition of collagen
- Table 2 : Molecular data for the citrate (pH 4.3) soluble carp swim bladder collagen by various methods
- Table 3 : Collagen typesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35217
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 62, N° 1 (01-02/1978) . - p. 1-13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007117 - Périodique Bibliothèque principale Documentaires Disponible Procter memorial lecture collagen, 1891-1977 : retrospect and prospect / Alan Gordon Ward in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 62, N° 1 (01-02/1978)
PermalinkProcter memorial lecture - collagen-nature's framework in the medical, food and leahter industries / A. J. Bailey in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 4 (07-08/1992)
PermalinkProcter memorial lecture collager, 1891-1977 : retrospect and prospect / Alan Gordon Ward in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
PermalinkProcter memorial lecture. The development and industrial application of speciality polymers / P. Flesher in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 78, N° 3 (05-06/1994)
PermalinkProcter memorial lecture. Unhairing and dewooling requirements for quality and the environment / Catherine A. Money in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 6 (11-12/1996)
PermalinkProduction of high carbon ferrochromium alloy from footwear leather waste ash through a carbothermic reduction in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 11 (11/2012)
PermalinkProgress and mechanism of breaking glycoconjugates by glycosidases in skin for promoting unhairing and fiber opening-up in leather manufacture. A review / Fengxiang Luo in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)
PermalinkProgress of application and chemical modification of biomass collagen : a review / Wang Xuechuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 5 (09-10/2015)
PermalinkProgress of certified reference materials in the leather field / Zhiding Huang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 2 (03-04/2019)
PermalinkProgress of proficiency testing in the leather field in China / Zhiding Huang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 3 (05-06/2023)
PermalinkProgress on the use of gaseous sulfur dioxide to preserve hides. The effect of concentration and exposure time / William J. Hopkins in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXVI (Année 1981)
PermalinkPermalinkPromoting circularity and the recyclability of leather in INTERNATIONAL LEATHER MAKER (ILM), N° 46 (03-04/2021)
PermalinkProperties distinguishing acrylic polymers as binders for basecoats on leather / Fred Schindler in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 3 (03/2003)
PermalinkProperties of bovine hair keratins solubilized with thioglycolate / A. M. S. Kamal in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIII, N° 9 (11/1998)
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