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A new lubricating acrylic syntan / A. El A'mma in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 1 (01/1991)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 1 (01/1991) . - p. 1-7 Titre : A new lubricating acrylic syntan Type de document : texte imprimé Auteurs : A. El A'mma, Auteur ; J. J. Hodder, Auteur ; Patricia Lesko, Auteur Année de publication : 1991 Article en page(s) : p. 1-7 Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : A novel acrylic resin was developed to retan,fatliquor and waterproof mineral-tanned leather substrates.Leather made with only the resin has excellent water repellency,softness and strength.It is machine-washable and dry-cleanable due to the substantive nature of the resin.The leather is readily finishable.Tanners worldwide have accepted the utility of this new acrylic syntan to make diverse leathers of high quality. En ligne : https://drive.google.com/file/d/1cgmCXddUhqNRbKAgL6OrbJA_4woVRDFr/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8588 [article]

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Quantification of hide defects on today's leather / Robert G. Koeppen in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 1 (01/1991)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 1 (01/1991) . - p. 8-13 Titre : Quantification of hide defects on today's leather : An attempt to quantify common parasite and insect damage as well as urine/manure damage over a full year Type de document : texte imprimé Auteurs : Robert G. Koeppen, Auteur Année de publication : 1991 Article en page(s) : p. 8-13 Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Parasite and insect damage appear to be very significant causes for downgrading of bluestock,crust stock,or finished leathers.The purpose of this work was to produce a baseline for the most common causes of damage, which are pitting,grubs,mange,warts, and ringworm.This information was gathered and plotted for one year to see if seasonal changes had any bearing on the incidence of the defect.In this work we counted both 'healed' and 'open' defects as long as they were distinguishable.No attempt has been made to separate data of 'healed' verses 'open', or to quantify the percent of area involved in the defect. This method incorporates a small amount of titanium dioxide on the bluestock to allow better visual inspection. En ligne : https://drive.google.com/file/d/1_zws-oYF9FXhhdYFiPZj7j_33Xnx8d2H/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8589 [article]

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Novel approaches to the generation of data bases for computer-match prediction in leather dyeing / W. R. Dyson in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 1 (01/1991)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 1 (01/1991) . - p. 14-21 Titre : Novel approaches to the generation of data bases for computer-match prediction in leather dyeing Type de document : texte imprimé Auteurs : W. R. Dyson, Auteur ; M. A. Knight, Auteur Année de publication : 1991 Article en page(s) : p. 14-21 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Instrumental Color Management is now well established for shade passing,as is Computer-Match Prediction(CMP) in finishing.The application of CMP to leather dyeing,however,still poses problems.These include: (i)Inaccurary of data bases derived from laboratory dyeings (ii)The large number of dyes,tannage/retannage systems and application methods in commercial use. (iii)Dyestuff incompatibility e.g., rates of uptake,penetration and chemical interactions between dyes. Color variation due to dyestuff instability and interations has been investigated and has led to the identification of dye combinations which give rise to pack-to-pack color variation and,hence, the failure of CMP systems. Further studies are investigating the development of CMP laboratory-derived data bases which reproduce bulk performance and the reduction of dye inventories to a small number of compatible,substrate-tolerant dyes. En ligne : https://drive.google.com/file/d/1VEgRO1sTxfJ_mtGfEyA1z4G0A6XYfO8r/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8590 [article]

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