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Method of manufacturing non-woven fabrics and yarns

  • US 3,003,304 A
  • Filed: 10/31/1955
  • Issued: 10/10/1961
  • Est. Priority Date: 10/31/1955
  • Status: Expired due to Term
First Claim
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4. METHOD OF MANUFACTURING A YARN COMPRISING THE STEPS OF PARTIALLY SPLITTING UP A HIGHLY UNILATERALLY ORIENTED, THIN, CONTINUOUS SHEET MATERIAL CONSISTING OF A SYNTHETIC ORGANIC LINEAR POLYMER, SO AS TO PRODUCE A NETWORK OF FIBERS WHICH ARE CONTINUOUSLY INTERCONNECTED IN THE ENTIRE DIMENSION OF THE SHEET, SUBSEQUENTLY FOLDING OUT SAID NETWORK, IN CASE IT IS INFILTRATED OR COILED, TO A BAND OF PARALLEL FIBERS, WHICH ARE MUTUALLY INTERCONNECTED, IN SUCCESSION HERETO LAMINATING SAID BAND WITH AT LEAST ONE OTHER SIMILAR BAND OF FIBERS, AND FINALLY TWISTING SAID LAMINATE TO A YARN.

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