| Titre : |
A comparative analysis of the comfort of leather and substitute materials, especially for footwear |
| Type de document : |
texte imprimé |
| Auteurs : |
Wilfried Diebschlag, Auteur |
| Année de publication : |
1978 |
| Article en page(s) : |
p. 307-332 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Chaussures -- Matériaux
Confort
Cuir
Etudes comparatives
Modèles mathématiques
Pied
Thermocinétique
Transpiration
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
To develop the most satisfactory concept on which ta base the requirements for materials to he used for garments or footwear, the following data about man (which can vary among the different races) must be known :
1. Heat emission of different areas of the skin and heat distribution in the body, and
2. Water vapor and sweat emission from different areas of the skin. Both these factors must he considered under various conditions of stress and strain (physical or mental exercise, expressed in watts or joules per hour) ; under different climatic conditions (temperature, humidity, air movement) ; and with a variety of types of clothing. For 14 combinations of these factors, the basic data were established in tests over several years with subjects wearing different clothing under various conditions. At the same time, the physical properties of the materials worn were measured by test instruments, in particular such properties as their behavior towards water, water vapor, and heat, and their drying time. |
| Note de contenu : |
- 1. INTRODUCTION : Wilson, the man who paved the way - The range of application of leather
- 2. THE THERMOPHYSIOLOGICAL SURVEY OF MAN : THE BASIS FOR IMPROVED FOOTWEAR : Foot-sock-shoe as a microclimate functional system - Distribution of sweat glands and rate of sweat secretion - The influence of footwear on the microclimate in the shoe - Recommendations of the physiologist for shoe manufacturers
- 3. THERMODYNAMIC PROGRAM FOR CALCULATION OF HEAT TRANSFER : Mechanisms of heat transfer from the body to the environment - Dry heat transfer - Evaporative heat transfer - Calculation for steady state - Examples of calculation fo r the functional system foot-shoe
- Table 1 : Skin temperatures and heat and vapor flow under different conditions of activity, dress, and climate
- Table 2 : Perspiration of man's body and foot compared to the water vapor characteristics of footwear materials
- Table 3 : Constants for the calculation of variables Bi and Ti for various areas of the body
- Table 4 : Physical characteristics of footwear
- Table 5 : Physiological data of the foot when sitting or walking |
| En ligne : |
https://drive.google.com/file/d/1MtcWd6Uqy4_IIWFlBxRmxcQWkyETU-UV/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41154 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXIII (Année 1978) . - p. 307-332
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A comparative analysis of the comfort of leather and substitute materials, especially for footwear in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXIII (Année 1978)
