British Patent 1,263,055, Improvements in or Relating to the Production of Bulked Yams, February 9, 1972 (to ICI Ltd.).
2.
Ludewig, H., "Polyester Fibres," London, Wiley-Interscience, 1964; Dumbleton, J.H., Spin Orientation Measurement in Polyethylene Terephthalate, Textile Res. J.40, 1035-1041 (1970); Wampler, F.C., Gregory, D.R., and Kennedy, W.D., Spinning of Poly(ethylene Terephthalate) Fibers from a Melt Pool without a Spinneret, J. Appl. Polymer Sci.16, 99-106 (1972).
3.
Quynn, R.G., Sticking Behavior of Preoriented PET Yams, J. Appl. Polymer Sci.16, 3393-3394 (1972).
4.
Shealy, O.L. and Kitson, R.E., An Age Stable Feed Yam for Draw Texturing by the False Twisting Process, paper presented at the 44th Annual Research and Technology Conference of The Textile Research Institute, New York, NY, March 27, 1974; U. S. Patent 3,772,872, Polyester Yarn for Draw-Texturing Process, November 20, 1973 (to duPont).
5.
U.S. Patent 3,733,801, YarnProcess, May 22, 1973 (to Fiber Industries, Inc.).