Title:
CONTINUOUS DRY SPINNING OF ACRYLONITRILE FILAMENT AND FIBER
Document Type and Number:
Japanese Patent JPS5921711
Kind Code:
A
Abstract:
Ready-for-despatch filaments and fibres made of acrylonitrile polymers which contain at least 40% by weight of acrylonitrile units can be prepared from a spinning solution in a continuous dry-spinning method in which (a) the spinning solution spun has a viscosity at 100 DEG C. of 10 to 60 falling-ball seconds, (b) the evaporation of the solvent in the spinning cell is controlled in such a way that on leaving the spinning cell the solvent content of the filaments is at most 40% by weight, relative to the solids content of the fibre, (c) before the stretch the filaments are treated with a spin-finish which contains a lubricant and an antistat and gives the filaments a moisture content of at most 10% by weight, relative to the solids content of the fibre, and (d) before the stretch the filaments have no contact with any other extraction liquid for the spinning solvent.
Inventors:
URURITSUHI RAINEERU
HANSU UUREMAN
HANSU UUREMAN
Application Number:
JP12111883A
Publication Date:
February 03, 1984
Filing Date:
July 05, 1983
Export Citation:
Assignee:
BAYER AG
International Classes:
D01D5/04; D01F6/18; D01F6/38; (IPC1-7): D01F6/18; D01F6/38
Domestic Patent References:
| JPS56101909A | 1981-08-14 | |||
| JPS5541329A | 1980-03-24 | |||
| JP44007759A | ||||
| JP47049447A | ||||
| JPS5747986A | 1982-03-19 |
Foreign References:
| US2811409A | 1957-10-29 |
Attorney, Agent or Firm:
Akira Uchida