The most importhant application to date in the textile field has been the use of polyurethane elastomers for loom pickers. Here the application is vary arduous, the shuttle weighing about 1 lb traversing a 4 ft loom approximately 150 to 200 times a minute. Previously the materials chiefly used were either raw hide or rubber-fabric composition. On the average polyurethane pickers outlast other types of pickers but they do exhibit a number of unexplained early faileres. The life of the picker is very dependent on the correct setting of the picker in relation to the shuttle, and if badly aligned, the picker will fail rapidly. The search for even better pickers is still proceeding, and the most recent design incorporate a wearing block of high density polyethylene inside a resilient body of a hard thermoplastic polyurethane.
Other application in the textile and allied field include falling bars for selector needles on the knitting machines, cot roller covering, and drive couplings for bobbins.
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