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Solving vein marks defects problem through wet end process / K. Gowthaman in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIX, N° 9 (09/2014)

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[article]
inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIX, N° 9 (09/2014) . - p. 278-283

Titre :	Solving vein marks defects problem through wet end process
Type de document :	texte imprimé
Auteurs :	K. Gowthaman, Auteur ; S. Vikram, Auteur ; N. N. Fathima, Auteur ; Jonnalagadda Raghava Rao, Auteur
Année de publication :	2014
Article en page(s) :	p. 278-283
Note générale :	Bibliogr.
Langues :	Américain (ame)
Catégories :	Cuirs et peaux -- Défauts Cuirs et peaux -- Finition Cuirs et peaux -- Propriétés mécaniques Cuirs et peaux -- Propriétés organoleptiques Défaut de veine (cuir)
Index. décimale :	675 Technologie du cuir et de la fourrure
Résumé :	Leather grading is done on the basis of number of defects found on the leather. Defects either ante mortem or post mortem thus affect the final quality and price of the leather. In this study, we have investigated one of the ante mortem defects namely vein marks and have developed a process for upgrading leathers with this defect. SEM studies clearly depict the groove or indentation due to the vein marks. Upgradation using finishing often results in affecting the breathability of leathers. Hence, we have adopted a strategy of changing the post tanning recipe for upgradation of leathers with vein marks. The optimized post tanning recipe resulted in upper leathers with visibly reduced vein marks and the strength and organoleptic properties are on par with that of control leathers. Thus, this study shows that vein marks defect in leathers can be overcome by suitable post tanning process modifications.
Note de contenu :	- EXPERIMENTAL : Post tanning operations - Physical testing of leather samples - Evaluation of organoleptic properties - Wet and dry rub fastness - Scanning electron microscopic analysis - RESULTS AND DISCUSSION : Strategy followed for optimization of the post-tanning recipe - Upgradation in vein marks leathers - Physical strength characteristics, organoleptic properties and rub fastness measurements
En ligne :	https://drive.google.com/file/d/1iUAdqD0l62TdRRaqH20vDDq9OAGcz1RB/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21865

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