Method of manufacturing acrylic composite yarn
Abstract
Abstract A METHOD OF MANUFACTURING AN ACRYLIC COMPOSITE FIBER WHICH CONTAINS PREDMINANTLY ARCYLONITRILE, CHARACTERIZED BY (A) SPINNING AN ACRYLIC COMPOSITE FIBER COMPOSED OF TWO OR MORE ACRYLIC POLYMER COMPONENTS TENDING T EXHIBIT DIFFERENT THERMAL BEHAVIORS AND ARRANGED ECCENTRICALLY ALONG THE ENTIRE LENGTH OF SAID FIBER, (B) STRETCHING SAID FIBER, (C) CRIMPING SAID FIBER MECHANICALLY, AND (D) FINALLY HEAT-TREATING SAID FIBER IN A RELAXED STATE WITH ITS MOISTURE CONTENT ADJUSTED TO BE FROM 50 TO 120% RELATIVE TO THE DRY WEIGHT OF SAID FIBER. THE PRESENT INVENTION ALSO PROVIDES FOR BIERS PRODUCED BY THE AFOREMENTIONED METHOD, HAVING COIL CRIMPS OF FROM 12.4 TO 17.3 CRIMPS PER 25 MM. OF FIBER LENGTH, AND HAVING A DEGREE OF CRIMPING OF BETWEEN 13.4 TO 20.9%.
Inventors
- 👤 Kazumi Nakagawa
- 👤 Keitaro Shimoda
Bibliographic Details
Claims Analysis
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