An Imidazolidinone-Glyoxal Reactant for Cellulose

Abstract

660 t between fabric and skin. A realistic model must take into consideration both physical and physiological factors. We have considered only the physical factors here.The treatment given here is simple and results from an attempt to convey the nature of the phenomena.More realistic models of the behavior of a tube of cloth on & limb are being considered. The effect of wind on the layer of air that accompanies the cloth, which has been studied by Burton and Edholm [ 1 ], could be important in the context of wind induced heat loss.. The, mechanism described here has been reported previously by Yankelevich in his study of the measurement of thermal insulation. The effect may have been neglected previously because measurements are often made on fabrics removed from bodies. The effect is an interaction between air permeability and both heat insulatiori and water vapor resistance. It is also an interaction between wind induced pressure differences round a body and these transfer properties. The obstruction of the body to the flow produces potentially uncomfortable and ultimately dangerous increases in its heat and water vapor losses.ABSTRACT 2-Imidazolidinone (ethyleneurea) and glyoxal in an equimolar ratio formed a water soluble, polymeric adduct that was reactive to cellulose. As a formaldehyde-free finishing agent for cotton fabric, it gave high wrinkle recovery angles but relatively low durable press ratings. The finish showed moderately good hydrolysis resistance and caused little discoloration even when the agent was a crude reaction mixture.Formaldehyde-free finishing agents for imparting wrinkle resistance and durable press properties to fabrics containing cotton have been made from the addition of glyoxal to amides [3,5]. In this paper we report on another agent of this class prepared from 2-imidazolidinone (ethyleneurea) and glyoxal. The properties imparted to cotton fabric by this agent differed in some respects from those imparted by formaldehyde-free agents existing at the time experimental work was started. Since that time, however, a finishing agent has been patented that is based on the same reagents but is prepared by a different procedure [4].