[article]
Titre : |
Area retention studies for vacuum-dried leather |
Type de document : |
texte imprimé |
Auteurs : |
Cheng-Kung Liu, Auteur ; Gary L. Di Maio, Auteur ; Nicholas P. Latona, Auteur |
Année de publication : |
2002 |
Article en page(s) : |
p. 381-388 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
The importance of knowing the effect of leather making conditions on the resultant area yield cannot be over-emphasized because the price of a piece of chrome-tanned leather is determined by its area. In our previous vacuum drying studies, we demonstrated that the residual water content is the key factor governing area retention. However this general doctrine can be complicated by additional variables such as the initial water content and the number of staking passes, particularly for the toggled-dried leather because of the mechanical stretch that occurs. We therefore have conducted a systematic study focusing on four factors simultaneously: initial water content, fatliquor concentration, drying time and the number of staking passes. We used the SAS statistical program to formulate their interactive relationship on the area retention of leather. A second order polynomial regression equation was derived to plot 3-D response surfaces that clearly illustrate the relationship between the variables and area retention. Observation showed that the area retention increases steadily with increasing either initial water content or fatliquor concentration. This trend slowly reverses, however, as both of these factors increase further. The effect of staking on area retention is also very intricate. Without the proper amount of fatliquor or initial water content, staking can significantly reduce area retention. This investigation has attained comprehensive information of the effects of these four variables and more importantly their interactions on area retention. |
En ligne : |
https://drive.google.com/file/d/1-neAIadhNWTEOZThjbqG60UxFj2c_JBI/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4247 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVII, N° 10 (10/2002) . - p. 381-388
[article]
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