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Applicability of fluorinated surface-active agents in different tanning processes / E. Gratacos in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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Titre : Applicability of fluorinated surface-active agents in different tanning processes Type de document : texte imprimé Auteurs : E. Gratacos, Auteur ; Agusti Marsal, Auteur ; M. Fort, Auteur Année de publication : 1990 Article en page(s) : p. 474-485 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This study concerns the possible application of fluorinated surface-active agents in different processes of leather manufacture.
The fluorinated surface-active agents employed in this study are characterised by a very high superficial activity demonstrated by a greater wetting capacity which is imparted in several systems.
Two tanning processes were selected - dyeing and chrome tanning - to test the repercussion of fluorinated surface-active agents in the improvement of contact between a solid (leather) and a liquid (liquor bath), i.e., the use of such surface-active agents as aids in the rupture between heteroeneous phases. The diffusion through the leather fibres of anionic dyes and of tanning Cr+ cationic complexes has also been studied. For this work an anionic surface-active agent was selected for the dyeing process and a cationic surface-active agent for the chrome-tanning process.En ligne : https://drive.google.com/file/d/1MPdw5g_ZMCX4TLnAAEvQrWuwb2gh1yrm/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8825
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXV (Année 1990) . - p. 474-485[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008090 - Périodique Bibliothèque principale Documentaires Disponible Applicability of fluorochemical compounds with carboxylic groups in the leather waterproofing process / E. Gratacos in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
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Titre : Applicability of fluorochemical compounds with carboxylic groups in the leather waterproofing process Type de document : texte imprimé Auteurs : E. Gratacos, Auteur ; Agusti Marsal, Auteur ; M. Fort, Auteur Année de publication : 1987 Article en page(s) : p. 212-217 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure En ligne : https://drive.google.com/file/d/15jzYoZu0YAcbGPi4vgpgOHpfZHbIVnWT/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9034
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXII (Année 1987) . - p. 212-217[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008087 - Périodique Bibliothèque principale Documentaires Disponible Combination tannage with vegetable and aluminium salts : glace kid for ladies shoe uppers / E. Gratacos in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 77, N° 6 (11-12/1993)
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Titre : Combination tannage with vegetable and aluminium salts : glace kid for ladies shoe uppers Type de document : texte imprimé Auteurs : E. Gratacos, Auteur ; Agusti Marsal, Auteur ; M. Fort, Auteur Année de publication : 1993 Article en page(s) : p. 167-170 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Pickled goatskins were used for the production of glacé leather. The whole process is based on use of a vegetable extract and aluminium salt combination tannage. Ladies shoes were manufactured from this leather. In order to determine the characteristics of this type of leather a series of tests were carried out by a research centre specializing in footwear. En ligne : https://drive.google.com/file/d/1FkVZBZhYtPjwZi1ul5ZOU9UCTIFK0frx/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8425
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 77, N° 6 (11-12/1993) . - p. 167-170[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006995 - Périodique Bibliothèque principale Documentaires Disponible Drying of raw goat and sheepskins by heat pump : an alternative to salting / Agusti Marsal in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 81, N° 4 (07-08/1997)
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Titre : Drying of raw goat and sheepskins by heat pump : an alternative to salting Type de document : texte imprimé Auteurs : Agusti Marsal, Auteur ; E. Gratacos, Auteur ; M. Portavella, Auteur Année de publication : 1997 Article en page(s) : p. 156-159 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In wet countries, the curing of raw woolskins is carried out by salting however, this method causes problems to the tanners given the high salt content in the soaking effluents. In order to avoid this salinity problem, the curing of woolskins by drying is preferred. But in countries where climatic conditions are not adequate, hot air drying can be used, which may cause irreversible damage to the skins.
In this paper, laboratory drying trials on raw woolskin at different temperatures are reported to demonstrate the damage arising from inadequate drying conditions. In additions, some recommendations on the most suitable drying conditions are offered. Briefly, drying must be carried out under the following conditions :
. Well stretched out skins with the flesh side outwards
. Gentle air flow, at no more than 20°C, at low relative humidity.
These conditions which are rarely supplied by the climate in many countries can be easily achieved by means of a heat pump dryer.
The results of a semi-industrial drying trial on raw wollskin in a pilot plant operated by a heatpump are reported. Satisfactory drying was achieved in 20 hours using air at a temperature between 28-22°C and a relative humidity of 30-40 %.En ligne : https://drive.google.com/file/d/11m5Fao05AffbB69nqvWFfznwWB_FAnyt/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8024
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 81, N° 4 (07-08/1997) . - p. 156-159[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007017 - Périodique Bibliothèque principale Documentaires Disponible Grain strain in sheepskins produced during flaying : Part 2 / E. Gratacos in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 75, N° 1 (01-02/1991)
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Titre : Grain strain in sheepskins produced during flaying : Part 2 Type de document : texte imprimé Auteurs : E. Gratacos, Auteur ; R. Costa, Auteur ; J. Sans, Auteur ; M. Portavella, Auteur Année de publication : 1991 Article en page(s) : p. 1-9 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Following on from the extensive bibliographical data survei and the section on traction and ball burst tests in part 1, part 2 deals with more intensive testing.
Data on wool pulling and tensile testing are followed by the comprehensive section on industrial slaughterhouse investigations. Part 2 concludes with final recommendations.En ligne : https://drive.google.com/file/d/1pxhJx-i-ilINLsKVlmVnDCXKAdl5KK1k/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8651
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 75, N° 1 (01-02/1991) . - p. 1-9[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006983 - Périodique Bibliothèque principale Documentaires Disponible Grain strain in sheepskins produced during flaying : Part 2 / E. Gratacos in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 75 (Année 1991)
PermalinkGrain strain in sheepskins produceed during flaying : Part I / E. Gratacos in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 74 (Année 1990)
PermalinkInstrumental techniques for evaluation of residual retanning baths / J. Cot in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 75, N° 1 (01-02/1991)
PermalinkInstrumental techniques for evaluation of residual retanning baths / J. Cot in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 75 (Année 1991)
PermalinkOptimization methods in leather research : Vegetable extract - aluminium salt combination tannage / Agusti Marsal in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIX, N° 4 (04/1994)
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