Yarn texturing process
 Air-jet textured core/effect nylon yarn provides fabrics having better cover when the core component has been draw-oriented after conventional melt-spinning, and the effect component has been spin-oriented by melt-spinning at unusually high speed. The improved yarn is particularly useful in upholstery fabrics. 
E. I. Du Pont de Nemours and Company
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D10B D02G D02G D02G
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James W. Franklin G. Laurence N.
Rogers Parker Bascom