[article]
| Titre : |
Evaluation of urea sulfate as a substitute for formic acid in the retan, color, and fatliquor process |
| Type de document : |
texte imprimé |
| Auteurs : |
Andrew G. Gehring, Auteur ; David G. Bailey, Auteur ; Jeanette M. Cardamone, Auteur ; Gary L. DiMaio, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 333-342 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Formic acid is a noxious and corrosive chemical that must be handled with extreme care by workers in the leather tanning industry. A safe alternative to formic acid in the retan, color, and fatliquor process would be highly desired if the alternative was not only demonstrated to be an equally efficient but also a cost effective replacement. Commercially prepared wet blue (bovine origin) was subjected to the retan, color, and fatliquor process utilizing either urea sulfate or formic acid during dyeing. The resultant hide pieces were further processed into crust leather. Multiple physical and chemical measurements were performed on the crust to evaluate the effects of formic acid substitution with urea sulfate. Although there were slight differences in perspiration testing and light fastness results, no remarkable difference in dye uptake and color uniformity was observed by substituting formic acid with urea sulfate. However, crust leather was remarkably lighter in coloration when dyed with select dyes in the presence of urea sulfate. Interestingly, hide pieces tended to leach relatively less chromium into dye baths containing urea sulfate. |
| En ligne : |
https://drive.google.com/file/d/1HfUaGlQw2SN2Df11ekc5MyhbVEdORHhR/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4364 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVI, N° 9 (09/2001) . - p. 333-342
[article]
|
Aller sur edunet
Accueil
Evaluation of urea sulfate as a substitute for formic acid in the retan, color, and fatliquor process in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 9 (09/2001)
