Cotton Carding: Production and Its Effects on Quality

Abstract

The following report, which covers the possibility of increasing the production of cotton cards, should be of particular value to the managements of cotton mills at this time when the capacity of the equipment is overtaxed because of war requirements. It would also seem reasonable that the principles set forth may be applicable to the carding of staple rayon. This is the first complete report on studies conducted under the direction of the Applied Research A progress report has been recently issued covering some of the material included in this article. However, in the course of finishing the study it has been possible to draw several important conclusions affecting the overall picture which were not justified at the time the progress report was issued. Additional results have now been summarized and, of course, the data provided are much more complete.The cotton carding capacity of the country, although in balance with other yarn manufacturing equipment for peacetime requirements, is inadequate for the manufacture of heavy volumes of military . fabrics. The greater predominance of the coarser yarns needed in wartime requires an increase in carding capacity in proportion to spinning equipment. Therefore any increase in the productivity of existing carding equipment should be reflected in direct increase in the country's yan1 production, as long as the production increase is not accompanied by significant lowering of the quality of the types of yarns used in military products.