Título: | JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS AND CHEMISTS, VOL 83NRO 2 - mar-abr.1999 |
Tipo de documento: | Serial check-in : texto impreso |
Fecha de aparición: | 01/05/1999 |
Fecha de publicación: | 1999 |
Nota general: | ISSN: 0144-0322 |
Langues: | Inglés |
Resumen: | A method has been established for determining arylamines in azo dyed leathers, obtaining a yielding of approximately 90% or more, of amines present in the leather. A comparative study has also been carried out etween the proposed method and the method indicated in the German standard DIN 53316. |
Nota de contenido: | JSLTC Hon. Editor M.K. Leafe, Kirkroyd, 49 North Park Street Dewsbury, West Yorkshire WF13 4LZ UK |
Artículos
Article : texto impreso
REICH, G., Autor
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Cambios en la estructura del colágeno durante el procesamiento de los cueros. Nuevas técnicas de microscopia utilizadas:
AFM , atomic force microscopy
ESEM, environmental scanning electron microscopy
Article : texto impreso
MENDEN, E., Autor ;
KALLENGERGER, W. E., Autor
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Unsaturated fatty acids are known to be vulnerable to oxidation under warm, moist conditions. Therefore heating wet-blue cattle hide in order to prepare samples for fat extraction might logically be expected to affect fat compositions, and even [...]
Article : texto impreso
FONT, J., Autor ;
CUADROS, R. Ma., Autor ;
LALUEZA, J., Autor ;
MARSAL, A., Autor ;
REYES, Ma. R., Autor ;
COSTA-LOPÉZ, J., Autor ;
ORÚS, C., Autor
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In this work the results of a preliminary study on the influence exerted by neutralization, washing, ageing and vegetable retanning on chromium VI content in sheepskins are presented. In neutrlization, the presence of chromium VI in skins is obs[...]
Article : texto impreso
BLANCO, M., Autor ;
CANALS, T., Autor ;
COELLO, J., Autor ;
MORA, K., Autor ;
ITURRIAGA, H., Autor ;
MASPOCH, S., Autor ;
GENÉ, J., Autor
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The simultaneous spectrophotometric determination of fats in mixtures used by the leather tanning industy by use of a rigid multivariate calibration method is reported. Mixtures of analytes with overlapped UV-vis spectra were quantified with rel[...]
Article : texto impreso
CANTERA, C. S. /et al/, Autor
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Results obtained in the assessment of proteolytic activity through the use of hide powder azure (partially denaturalized collagen) for different commercial enzymatic products. The products were selected considering the need to evaluate preparati[...]
Article : texto impreso
MENDERES, O., Autor ;
COLLINS, M. J., Autor ;
WAITE, E. R. , Autor ;
COVINGTON, A. D., Autor
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Within the conventional period of liming, collagen remains intact, there is no appreciable breakdown of the structure to alter the collagen conformation, which would allow the intramolecular hydrolysis mechanism to operate effectively.
Article : texto impreso
SREERAM, K. J., Autor ;
VENBA, R., Autor ;
RAGHAVA RAO, J., Autor
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Pruebas de precipitación de cromo, escala de laboratorio, con diferentes basificantes: cal, carbonato de sodio, hidróxido de sodio y óxido de magnesio, influencia del pH y la temperatura en el contenido de cromo del sobrenadante