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

• Current Assignee: Ole-Bendt Rasmussen
• Original Assignee: Ole-Bendt Rasmussen
• Inventors: OLE-BENDT RASMUSSEN
• Application Number:
  US03/543,983
• Time in Patent Office: 2,171 Days
• US Class Current: 57/32
• CPC Class Codes: D04H 13/00 Other non-woven fabrics
• CPC Class Codes: Y10S 264/08 Fibrillating cellular materials
• CPC Class Codes: Y10S 264/47 Processes of splitting film, webs or sheets
• CPC Class Codes: Y10S 57/907 Foamed and/or fibrillated
• CPC Class Codes: Y10T 156/1044 of parallel stacked sheets only
• CPC Class Codes: Y10T 225/14 Longitudinally of direction of feed

Claims

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.