Solvent-free, high-performance finishing systems / Helmut Will in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 1 (02/1991)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 1 (02/1991) . - p. 49-68 Titre : Solvent-free, high-performance finishing systems Type de document : texte imprimé Auteurs : Helmut Will, Auteur ; Karl Fischer, Auteur Année de publication : 1991 Article en page(s) : p. 49-68 Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Administrative control laws and regulations on air pollution are in existence in many countries. Leather finishing is chiefly affected, and enforcements of these regulations will make the use of finishes based on organic solvents more difficult in the future. Likewise the use of formaldehyde has to be reduced considerably due to its strong irritating effect on the mucus membranes. Today,we can manage to produce solventfree finishes and finishes based on protein which possess good physical properties,wet and dry.By the use of carefully selected binders,topcoating agents based on acrylics and urethanes,and crosslinkers it is possible to develop "high performance" finishes.The emission of V.O.C.'s can also be reduced to a large degree by using new application methods,such as rollcoating. En ligne : https://drive.google.com/file/d/1pduqBykajiZo5kETusJ3TSkG2n6l-ZQz/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8587 [article]

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Waterborne coatings based on different film forming polymers / Dietrich Lach in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIII (Année 1988)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXIII (Année 1988) . - p. 87-94 Titre : Waterborne coatings based on different film forming polymers Type de document : texte imprimé Auteurs : Dietrich Lach, Auteur ; Karl Fischer, Auteur ; Ivo Knoll, Auteur Année de publication : 1988 Article en page(s) : p. 87-94 Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : For about 20 years, the problems of environmental protection have been intensively discussed at the congresses of the leather industry in all parts of the world. In the seventies, the effluent problems were of topical interest. In the heighties, the discussions have concentrated more and more on subjects concerning air pollution. The problems of environmental protection have thus shifted from the beamhouse to the finishing department. Requirements of the government agencies are,to a great extent, already in existence. Enforcement of these regulations will make the use of lacquers based on oganic solvent difficult in the future. This means that the traditional finishing system has to be changed completely. Waterborne coatings have therefore to be used for finishing and top coating leather. However, the question is whether this will be possible without impairing the physical properties and the appearance of the finished leather. Before we discuss this question, let us first take a look at the improvements we can achieve with existing technology. Let us consider a tannery finishing 2000 sides a day using two top coats based on nitrocellulose. These top coats can be applied to the leather in four different ways. They can be sprayed or printed as a nitrocellulose lacquer or they can be sprayed or printed as a lacquer emulsion. Table I shows the approximated amounts of solvents emitted. En ligne : https://drive.google.com/file/d/1WXdsQbn9fi4T8LAzh9MlsKftJEp-5T5D/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8846 [article]

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