Process of producing viscose yarn

Details Process of producing viscose yarn Process of producing viscose yarn

1974-10-29

1977-08-30

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264 38, 264233, D01F 206

Patent

active

040455327

ABSTRACT:
A continuous process for producing viscose yarn including feeding a viscose solution through spinneret dies into a spinning bath to spin viscose yarn, and finally regenerating and concurrently cooling the spun yarn, now carrying entrapped carbon bisulfide in the form of an emulsion, from said spinning bath at a temperature below the boiling point of the carbon bisulfide. Thereafter, while maintaining the finally regenerated yarn in a cooled condition, washing the yarn with water whereby some water, in addition to the carbon bisulfide, becomes entrapped in the yarn, subjecting the washed yarn to avivage treatment, and finally drying the resulting yarn at an elevated temperature sufficient to concurrently remove both the entrapped water and the carbon bisulfide from the yarn. Thereafter, the resulting dried and carbon bisulfide-free yarn is wound into a package.

REFERENCES:
patent: 1214931 (1917-02-01), Leduc et al.
patent: 2488665 (1949-11-01), Heim
patent: 2494468 (1950-01-01), Borzykowski
patent: 2519382 (1950-08-01), Kuljian
patent: 2683072 (1954-07-01), Clark
patent: 3109699 (1963-11-01), Richardson

Affiliated with

Also associated with

Rating

Process of producing viscose yarn does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of producing viscose yarn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing viscose yarn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-962619