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Methods are described for evaluating starches for use on fabrics; these include methods for judging the starch mixtures from a processing or plant operating viewpoint and methods for evaluating the quality of starched fabrics.The former may be used for measuring the stickiness of starch mixtures during ironing, and the penetration of such mixtures; the latter may be used to measure the transparency of starch films, and to determine the smoothness, stiffness, and resistance to crushing of starched fabrics.These methods may also be used to advantage in evaluating other sizing or finishing agents.