Drying of Fabrics

Abstract

With a view to improving fabric dryer, an experiment was made to determine the drying curve under various drying conditions. Two methods of drying were applied to a few fabrics. In one method, heated air, flows perpendicularly to the fabric, passes through the fabric texture, for the drying purpose and in the other the fabric comes in contact with a metallic plate heated by hot water. The drying curves are separated into two parts, periods of constant rate of drying and decreasing rate. as to the period of decreasing rate, more important in practical case, we may belive as follows by comparing the experimental results with the theoretical consideration. The distribution of moisture content on drying subject (fabric) is similar to the distribution of temperature on heat transfer. So in this paper, the relation between the period of constant rate and that of decreasing has been shown. Then we may discuss on the fabric dryer whether improvable or not.