Patents Represented by Law Firm Sugnrue, Mion, Zinn, Macpeak & Seas
  • Process for stretching staple fibers and staple fibers produced thereby
    Patent number: 5477669
    Abstract: A process for stretching natural staple fibers to reduce the diameter includes the steps of treating a substantially untwisted traveling assembly of natural fibers to plasticize the natural fibers, twisting the traveling assembly sufficiently to substantially prevent drafting of the assembly during subsequent stretching, subsequently stretching the twisted assembly and setting the stretch. Staple fibers having reduced diameters are provided as a result of the stretching process.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: December 26, 1995
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: David G. Phillips, John J. Warner