Experimental studies in restoration and conservation of historical leather / Z. Bajza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 1 (01-02/2004)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 88, N° 1 (01-02/2004) . - p. 18-22 Titre : Experimental studies in restoration and conservation of historical leather Type de document : texte imprimé Auteurs : Z. Bajza, Auteur ; P. Hitrec, Auteur ; M. Muzic, Auteur ; D. Medic, Auteur ; D. Krstic, Auteur Année de publication : 2004 Article en page(s) : p. 18-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse quantitative (chimie) Antiquités (objets anciens) -- Conservation et restauration Cuirs et peaux -- Analyse Objets d'art -- Conservation et restauration Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This article investigates the main properties of 300-year old leather wallhanging dating to the late 17th century, originating from St. Peter and Paul’s church in the village of Sveti Petar u s˘umi in Istria. Tests were carried out according to standard IUC methods (ISO 4047), and microphotographs of cryostat prepared test samples were taken. The leather surface layer was investigated using a UV (ATR) spectrophotometer, thinlayer chromatography and a PIXE spectrophotometer. Examination indicates that the leather is calf-bovine and was vegetable tanned. Formal suggestions were made for cleaning and preserving the leather wallhanging, it was suggested that the best solution would be to attach (adhere) the historic leather to new leather. Note de contenu : - MATERIALS AND METHODS : Microscopic examination - Thin-layer chromatography - Analysis by PIXE spectroscopy - nuclear IRB micro-test (of the red glaze) - RESULTS AND DISCUSSION : Organoleptic assessment - Determination of volatile matter in leather (water, etc.) - Determination of materials soluble in tetrachloromethane - Determination of pH and difference value of the aqueous leather extract - Determination of total ash - Thin-layer chromatography - Examination of the surface layer En ligne : https://drive.google.com/file/d/1SO3DzSqPU531XaIwPKqj2ynsnmZjZJmK/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39651 [article]

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Influence of various waterproofing agents on water and water vapour absorption and permeability / Z. Bajza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 4 (07-08/2003)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 87, N° 4 (07-08/2003) . - p. 144-148 Titre : Influence of various waterproofing agents on water and water vapour absorption and permeability Type de document : texte imprimé Auteurs : Z. Bajza, Auteur ; P. Hitrec, Auteur ; M. Muzic, Auteur Année de publication : 2003 Article en page(s) : p. 144-148 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Croûte (cuir) On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés. Cuirs et peaux de bovins Essais (technologie) Humidité -- Absorption Imperméabilisants Imperméabilisation Perméabilité Vapeur d'eau Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this article, the influence on finished leather properties of five different waterproofing agents has been examined. Wet-salted bovine hide (weight category 35 kg) was treated in an half-industrial environment by conventionally used liming, tanning and retanning processes. 9% offers of five different waterproofing agents were used for the waterproofing process. The levels of water vapour, fats, ash and Cr2O3 were determined for the crust leather. The water vapour permeability, leather porosity to water vapour and absorption of water (measured on both the Kubelka apparatus and the Bally penetrometer) were determined. The water repellency properties of each waterproofing agent were estimated from the results. En ligne : https://drive.google.com/file/d/1uB8WAlL7pxLmIPnHSo5luEG48YxHyahc/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39770 [article]

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