Process for spinning starch fibers
US4853168A · kind A · utility
51Cited by
23References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Raw starch is slurried in an aqueous solution containing up to and above saturation levels of an ammonium sulfate, ammonium monobasic or dibasic phosphate, sodium sulfate or mixtures thereof. The slurry is then cooked at temperatures above about 150.degree. C. The resulting starch cook is then extruded using conventional methods into a coagulating salt bath thereby producing a starch fiber. When the starch is cooked in the presence of a salt prior to spinning in the coagulation bath, dilution of the salt in the coagulation bath is minimized, thus reducing the evaporation load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.