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Using ashes from incineration of chromium sulphate tanned leather scrap. Part 2 : Tanning liquors, additives in footwear adhesives and fillers in mortars / M. J. Ferreira in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 85, N° 6 (11-12/2001)
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Titre : Using ashes from incineration of chromium sulphate tanned leather scrap. Part 2 : Tanning liquors, additives in footwear adhesives and fillers in mortars Type de document : texte imprimé Auteurs : M. J. Ferreira, Auteur ; E. Xara, Auteur ; M. F. Almeida, Auteur ; M. Barla, Auteur ; J. Ferrer, Auteur Année de publication : 2001 Article en page(s) : p. 193-198 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésifs -- Additifs
Caractérisation
Cendres
Charges (matériaux)
Chrome
Cuirs et peaux -- Déchets -- Recyclage
Mortier -- Additifs
Récupération (Déchets, etc.)Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Chromium is the basis of leather manufacture and its extractable reserves are limited in distribution.
mainly in South Africa. Zimbabwe and ex-USSR countries. Almost 20% of the metal is used by the chemical industry where one third of it goes into leather production as chromium sulphate tanning agent.
The European Union depends on chromium imports as for most other metals.
After burning leather scrap tanned with chromium sulphate. the very rich chromium resulting ashes may contain chromium (VI) in such a concentration that it becomes a hazardous waste and needs careful
handling. 23Thus. both economic and environmental reasons suggest the use of these ashes.
This paper follows another 4in presenting some of the work carried out under CRAFT project BRST CT96-5085. where leather incineration ashes generated by two different pilot—combustion systems, respect ively a fixed grill incinerator (FGI) and a fluidized bed incinerator (FBI) were characterized and some alternatives for using those ashes were studied. In the previous paper two routes for recovering chromium from leather ashes were considered as well as the influence of some factors on their efficiency. Now, producing chromium sulphate tanning liquors with chromium leached from the ashes is considered, as well as some other alternatives of using those ashes, namely as additives in footwear adhesives and fillers in mortars.Note de contenu : - Characterization of ashes
- Application of recovered chromium in the leather industry as tanning agent
- Application of ashes in footwear adhesives
- Application of ashes as a filler in mortars
- Table 1 : Chemical characteristics of leathers tanned using a 50/50 mixture of commercial and FBI ash derived liquor
- Table 2 : Physical characteristics of leathers tanned using a 50/50 mixture of commercial and FBI ash derived liquor
- Table 3 : Characteristics of leathers tanned using a 50/50 mixture of commercial and FGl ash derived liquor
- Table 4 : Characteristics of leathers tanned using a 75/75 mixture of commercial and FGI ash derived liquor
- Table 5 : Type of failure of leather adhesive bonding
- Table 6 : Heavy metals in the leachates from ashes and mortars DIN 38414-S-4 tests and Photobacterinin Phosphoreum toxicityEn ligne : https://drive.google.com/file/d/1g9VcBCydqP4pVFRkAKVhOvYQeHtRAxJg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40213
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 85, N° 6 (11-12/2001) . - p. 193-198[article]Water sorption capacity of tanned collagen fibres / K. J. Bienkiewicz in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
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Titre : Water sorption capacity of tanned collagen fibres Type de document : texte imprimé Auteurs : K. J. Bienkiewicz, Auteur ; Czeslaw Krawiecki, Auteur Année de publication : 1978 Article en page(s) : p. 34-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption
Adsorption
Alumine
Chrome
Collagène
Cuirs et peaux
Eau
Glutaraldéhyde
Tannage combinéLe tannage combiné se dit des tannages qui allient deux familles ou genre de tannage pour obtenir un résultat additionnant les qualités complémentaires des tannins mis en Å“uvre par exemple Chrome-Végétal ou Chrome-SynthétiqueIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Water sorption capacity of tanned, spun collagen fibres has been examined and compared with that of standard, tanned and acylated hide powders. Chromium, chromium-alumina, glutaraldehyde and combined tannages have been applied. In spite of that the applied tannages engage different functional groups-only small differences in water sorption capacity have been observed-these do not exceed 20% of total value. Note de contenu : - Tables : Sorption capacity of collagen fibres En ligne : https://drive.google.com/file/d/1iETJn5Ph3AIRJoChQimXKDLa3w_C25a3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31846
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 61 et 62 (Années 1977 et 1978) . - p. 34-41[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008597 - Périodique Archives Documentaires Exclu du prêt Water sorption capacity of tanned collagen fibres / K. J. Bienkiewicz in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61, N° 2 (03-04/1977)
[article]
Titre : Water sorption capacity of tanned collagen fibres Type de document : texte imprimé Auteurs : K. J. Bienkiewicz, Auteur ; Czeslaw Krawiecki, Auteur Année de publication : 1977 Article en page(s) : p. 34-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption
Adsorption
Alumine
Chrome
Collagène
Cuirs et peaux
Eau
Tannage combinéLe tannage combiné se dit des tannages qui allient deux familles ou genre de tannage pour obtenir un résultat additionnant les qualités complémentaires des tannins mis en Å“uvre par exemple Chrome-Végétal ou Chrome-SynthétiqueIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Water sorption capacity of tanned, spun collagen fibres has been examined and compared with that of standard, tanned and acylated hide powders. Chromium, chromium-alumina, glutaraldehyde and combined tannages have been applied. In spite of that the applied tannages engage different functional groups-only small differences in water sorption capacity have been observed-these do not exceed 20% of total value. Note de contenu : - Tables : Sorption capacity of collagen fibres En ligne : https://drive.google.com/file/d/1iETJn5Ph3AIRJoChQimXKDLa3w_C25a3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31880
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 61, N° 2 (03-04/1977) . - p. 34-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007111 - Périodique Bibliothèque principale Documentaires Disponible Wet processing upholstery enhancement through technique / R. Kraus in WORLD LEATHER, Vol. 7, N° 1 (02/1994)
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Titre : Wet processing upholstery enhancement through technique Type de document : texte imprimé Auteurs : R. Kraus, Auteur Année de publication : 1994 Article en page(s) : p. 30-32 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chrome
Cuir d'ameublement
Cuirs et peaux -- Teinture
Huiles et graisses
Neutralisation (chimie)
Produits de nourriture du cuir
RetannageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Trends in upholstery leathers have moved towards a softer feel with more natural characteristics. Change to manufacture is apparent, however, due to the demands of the ecologists. Tanners can no longer afford to alter their beamhouse and tanning methods to meet the needs of new leathers as change may affect the effluent produced.
Due to changes in demand the leather specialist has to adjust quicldy to new requirements as textures supplied today can be out of fashion tomorrow, but unfortunately environmental pressures have restricted choice of action. It is also recognised that more extensive development is needed to establish a new leather-line in a tannery without major problems.
This restricted situation has caused more effective cooperation between tanneries and the chemical supply industry, and this joint approach is becoming more important. Some types of leathers can only be produced as new chemical products are developed to achieve a desired result, and this especially applies to fatliquors. When working from a standard wet blue, the temper of the leather is largely determined by the fatliquoring agents as the major chemical component. Very different fatliquors are now available compared w earlier products, but these can basically be divided into three categories :
1. Basic lubrication agents made from natural oils that can be unstable to electrolytes and are seldom used alone.
2. Natural and synthetic fatliquors that are electrolyte resistant.
3. Fatliquors that are electrolyte resistant, colour fast, environmentally friendly and heat resistant. These fatliquors may be fog resistant for use on natural leathers and for automotive use. Hydrophobie agents can also be used that have oil-like properties and provide the leather with a soft handle.Note de contenu : - The use of fatliquor in pickle and tanning : Fatliquor use in the pickle bath
- Advantages in multi-additions of fatliquors : Fatliquor use in chrome retanning/neutralising
- The main fatliquor application : Retanning, dyeing and fatliquoring - Dyeing to shadeEn ligne : https://drive.google.com/file/d/1PXDhEPRsMWq-iZAZBDbVO9d0DwOOaDCj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35170
in WORLD LEATHER > Vol. 7, N° 1 (02/1994) . - p. 30-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008094 - Périodique Bibliothèque principale Documentaires Disponible Zirconium acetate - Oxazolidine combination tannages in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 4 (07-08/2010)
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Titre : Zirconium acetate - Oxazolidine combination tannages Type de document : texte imprimé Année de publication : 2010 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acétate de zirconium
Chrome
Cuirs et peaux
Oxazolidine
TannageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : SOLO TANNAGES : Effect of concentration and time on the shrinkage temperature - Effect of temperature on shrinkage temperature - Effect of pH on the shrinkage temperature.
COMBINATION TANNAGES : Oxazolidine/zirconium acetate tannage - Chrome/zirconium acetate combination tannage.En ligne : https://drive.google.com/file/d/1HXWRLYCACHomr6Ij9ohiK52Q_dZCkRIM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9868
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 94, N° 4 (07-08/2010)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012384 - Périodique Bibliothèque principale Documentaires Disponible