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LEATHER INTERNATIONAL . Vol. 217, N° 4863Mention de date : 08/2016Paru le : 05/09/2016 |
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Titre : Tying up loose ends Type de document : texte imprimé Auteurs : Geoff Holmes, Auteur ; Sujay Prabakar, Auteur ; Thijs van Stiphout, Auteur ; Petrik Galvosas, Auteur Année de publication : 2016 Article en page(s) : p. 17-18 Langues : Anglais (eng) Catégories : Collagène -- Détérioration
Cuirs et peaux -- Analyse
Cuirs et peaux -- Défauts
Fleur du cuir
Relachement (mécanique)
Relaxometrie par résonance magnétique nucléaireIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The authors of this article have observed some excessive plumping in the flanks of limed split hides that has been correlated to looseness in crust leathers. But these observations only accurately predict downgrading in less than 30% of the hides we have pulled from production and processed through to leather, suggesting a tenuous connection at best. We have also seen a strong correlation between sammed wet-blue looseness, as measured using a modified TM 174 technique, and crust looseness in 32 regions of 1,000 hides followed through commercial production.
The main issue with all these techniques is that they cannot identify looseness in the raw material. Other studios in this project are looking at the chemical composition of base and tight hides, and follow a similar protocol to the one adopted in this study, where five regions of suspected loose hides are sampled and the remaining hide processed through to leather to identify whether it is actually base or not.
Our observations, from investigating looseness in cattle hides identified at the slaughter plant through to crust leather, is that looseness cannot be readily observed from information gathered on animal condition, breed, age or gender, but does become more obvious once the hides are processed, and can be readily seen in the cross-section of processed hides.Note de contenu : - Technical aspects
- Control measures
- What was observed
- Project outcomesEn ligne : https://drive.google.com/file/d/1Le8yr_8z5bP70Pr65d4eVnV6eqRy1ldt/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26903
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Code-barres Cote Support Localisation Section Disponibilité 18278 - Périodique Bibliothèque principale Documentaires Disponible Carbon footprint of a tanning company / Eylem Kiliç in LEATHER INTERNATIONAL, Vol. 217, N° 4863 (08/2016)
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Titre : Carbon footprint of a tanning company Type de document : texte imprimé Auteurs : Eylem Kiliç, Auteur ; Rita Puig, Auteur ; Gökhan Zengin, Auteur ; Arife Candas Adigüzel Zengin, Auteur Année de publication : 2016 Article en page(s) : p. 20-23 Langues : Anglais (eng) Catégories : Bilan des émissions de gaz à effets de serre
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Cuirs et peaux -- Industrie -- Turquie
Tannage -- Aspect de l'environnementIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Over the past few decades, climate change has evolved into an issue of global concern. The measures taken to reduce greenhouse gas emissions, and the significant and increasing awareness on the environmental impact of the production processes, force leather manufacturers to meet higher environmental standards and improve the sustainability of the leather tanning process.
The leather industry is one of the significant sectors of the Turkish economy in terms of industrial production, employment and export earnings. However, there is a gap in the literature regarding a carbon footprint assessment of the Turkish leather industry. It is important to analyse the leather production processes in order to identify the 'hotspots' and environmental improvements that could transform the constraints into opportunities for improving the environmental performances of Turkish tanneries. Considering these aspects, this study aims to provide basic information, and raise awareness of carbon emissions and energy efficiency in Turkish leather production.Note de contenu : - FIGURES : 1. Turkey's electricity mix - 2. Greenhouse gas emission values for each scope - 3. Contribution of different processes considered in Scope 3 to total carbon footprint - 4. Relative contribution of greenhouse gas emissions from different processes to total carbon footprint of Turkish tannery En ligne : https://drive.google.com/file/d/1W2yVVNtaYZLalZo0FGHQnhkDypgOWphj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26904
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Code-barres Cote Support Localisation Section Disponibilité 18278 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Colour difference Type de document : texte imprimé Auteurs : Karl Flowers, Auteur Année de publication : 2016 Article en page(s) : p. 37-41 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Teinture
vision des couleursIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The pass or fail decision in objective colour matching is a source of frustration and conflict between supplier and customer, and will continue to be so in years to come. As tanners, do we need to understand the colour science to be able to communicate with our customers and hopefully reduce the conflict to a simple metric that is easy to communicate or pass judgement on ? Note de contenu : - FIGURES : 1. A schematic representation of how colour pass or fail decisions can change from having a narrow tolerance boundary to broadening the limits - 2. Two geometric shapes showing the distance from their geometric centres to their respective surfaces - 3. An experiment showing a comparison of colour differences at high lightness values versus low lightness values
En ligne : https://drive.google.com/file/d/1n-Cy2UC8D4_aDMiICaduSBvBD8Y41UGn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26905
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Titre : Team effort Type de document : texte imprimé Auteurs : Eric Poles, Auteur Année de publication : 2016 Article en page(s) : p. 43-45 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Industrie -- Aspect de l'environnement
Eaux usées
Gestion des ressources en eau
Pollution -- Lutte contre
Tannage -- Aspect de l'environnementIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Water is found everywhere on Earth, from the polar ice caps to steamy geysers. It is a vital source for all known forms of life.
Its presence and quality sets conditions for human settlements, economic development and ecosystems. According to WWF, 1.1 billion people worldwide lack access to water and a total of 2.7 billion find water scarce for at least one month of the year.
The growing scarcity of freshwater due to rising water demand, climate changes and pollution resulting from human activity is seen as a major risk for the global economy. Hence, minimisation of water use and reuse applications within industry has recently gained importance within the context of water conservation efforts.
The leather-tanning industry is one of the subject industries due to a large amount of water to be disposed of together with a high pollution load. The leather-tanning industry has a complex structure in terms of materials, processes and manufacturing practices. Therefore, a systematic approach is required to assess water-use practice.
Note de contenu : - Water use in leathermaking
- Main polluting agents in wastewater
- COD during tanning
- Reduction of COD values by using different technologies on the production of chrome-free leathers
- Reduction of COD values by varying parameters in tanning
- Reduction of COD values by using low-COD leather chemicals
- Reduction of COD values with amphoteric syntan retannage
- Reduction of COD values in a compact retanning with recycling system of floatsEn ligne : https://drive.google.com/file/d/1etskSGCX3kwVqJO_2qD47F0jjWRl1dvy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26906
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