| Titre : |
Determination of the surface absorption of water vapor and liquid water by leather and other sheet materials |
| Type de document : |
texte imprimé |
| Auteurs : |
Ludwig Seligsberger, Auteur |
| Année de publication : |
1974 |
| Article en page(s) : |
p. 236-250 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Absorption
Cuir
Cuirs et peaux de moutons
Esters de cellulose
Filtres
Gants
Semelles
Vapeur d'eau
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
A method developed earlier for measuring water vapor absorption of leather and other sheet materials was modified to facilitate routine determinations of this property on large numbers of specimens. The micro-porous, hydrophobic cellulose ester filter was retained as the barrier material, but individual culture dishes with moist blotting paper at the bottom were used and the water vapor absorption was not measured at regular intervals, but just once when the test was terminated. Results obtained in this manner are presented in two tables. A new method for measuring surface absorption of liquid water by leather and other sheet materials was also developed. Differences between results of surface water absorption under dynamic and static conditions could not be found. Conditions were established for using three vessels of differe'nt size interchangeably. Results are presented in four tables. Some types of insoles, whether made of leather or of cellulose, were found developing a trend toward reduced wettability after repeated wetting and drying. One cellulosic product was exceedingly wettable because it contained a water soluble surfactant, but after its removal became difficult to wet. The importance of the properties measured by the two methods for the development of functionally improved handwear and for assessing replacement materials for leather insoles is discussed. |
| Note de contenu : |
- Apparatus for water vapor absorption
- Determinationof water vapor absorption : Specimen size and reporting results
- Apparatus for surface water absorption
- Determination of surface water absorption
- Table 1 : Water vapor absorption of leather insoles in grams (culture dish method)
- Table 2 : Water vapor absorption of cellulosic insoles in grams (culture dish method)
- Table 3 : Water absorption by grain surface of water repellent sheepskin glove leather (one specimen each from four skins representing two different experimentl lots)
- Table 4 : Water absorption by degrained surface of leather insoles
- Table 5 : Dynamic surface water absorption of cellulosic insoles (eight specimens from 1 sheet, 5 irons = 2.67 mm. thick)
- Table 6 : Dynamic surface water absorption of cellulosic insoles (four specimens from one sheet, 5 irons = 2.67 mm. thick)
- Table 7 : Comparison of siliconized and the formerly available hydrophobic type of millipore filters for the determination of water vapor absorption |
| En ligne : |
https://drive.google.com/file/d/1_wCQVLcZ8atoQlTSy-3-SlaPeS1IxJsV/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41365 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXIX (Année 1974) . - p. 236-250
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Determination of the surface absorption of water vapor and liquid water by leather and other sheet materials in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXIX (Année 1974)
