This paper describes a new instrument for measuring the coefficient of friction of yarn running against a fixed surface. It is a direct-reading instrument in which the fixed object under test need not be of a closely specified form and can be easily changed without the necessity for accurate positioning. The conditions of test, such as initial tension, speed and temperature of the fixed surface can be readily varied. Details of calibration and performance are given together with illustrative results which show that the coefficient of friction is not a yarn constant, but depends on the material of the fixed friction surface and the conditions of test.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.