Fundamental Studies on the Interaction between Moisture and Textiles: the van't Hoff relation, leading to an enthalpy difference of AHD•¬-9.6 kcal/mole between the solution water and the water in vapor. The thermogram for wetting of dried specimen revealed at least qualitatively the simul taneous occurrence of a rapid endothermic process and a slow exothermic process. These results showed the ex istence of three components of sorbed water in PETs; the solution component in a little less interacting state, the adsorption component in much more interacting state, and the condensation component in a little more interacting state than in the liquid state of water.

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