Excerpt from Comparative Performance of Saw and Roller Gins on Acala and Pima Cottons
Early in World War II, tests and comparisons were made on the roller ginning and saw ginning of Coker Wilds, a long-staple variety of upland cotton, at Esperanza, Tex., by members of the U. S. Cotton Grinning Research Laboratory, Stoneville, Miss.1 The roller-ginned Coker Wilds lint contained more foreign matter, graded lower, produced more manufacturing waste, and had fewer neps, than did the saw - ginned lint of this variety. Staple lengths averaged the same from both types of gins. The increase in foreign matter in lint from the roller gin accounted for a small increase in turnout.
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