RESEARCH AND DEVELOPMENT OF HIGH TENACITY FIBERS POLYOLEFINS.
Abstract
An improved thermal jacket enclosing the upper portion of the spinning way with multipoint temperature control and recording probes has been designed and built. The first tests have been successful and the possibility of a wide latitude in the control of orientation fixed in the fiber and in extending the rates of spinning has been demonstrated. A series of parallel spinnings with various L/D dies have demonstrated the desirability of using higher L/D dies for reducing filament to filament strength fluctuations in the finished yarn. SRI's spinning conditions for high strength have been duplicated within reasonable limits and it is concluded that their specifications are not amendable to producing yarns of adequate uniformity in denier. Furthermore the filaments as spun are not of the 'smectic' or 'paracrystalline' state as suggested by their argument but are crystallized and oriented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 11, 1963
- Accession Number
- AD0623880
Entities
People
- H. P. Kato
- J. S. Lasky