Roselon Knit Extension Tester2

Barré produced by knitting machinery is relatively common, is the easiest to see in the greige, and is the easiest to correct. Often uneven yarn tension during knitting may be a cause. To test for uneven tension, the Roselon Knit Extension Tester can be used.

For this test, a fabric sample is cut and raveled to yield yarn samples from light and dark streak areas. The yarn ends are taped and clamped to the tester. As each yarn is stretched to the maximum extension point, the points are plotted on graph paper. Comparisons are usually made visually rather than mathematically.

2 Source: Spinlon Industries Incorporated, 18 S. Fifth Street, Quakertown, Pennsylvania 18951