Manufacture of regenerated cellulosic fiber by zinc free viscose

Details Manufacture of regenerated cellulosic fiber by zinc free viscose Manufacture of regenerated cellulosic fiber by zinc free viscose

1993-04-29

1994-10-25

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

8101, 106165, 264188, 264195, 264198, 536 30, 536 60, D01F 208

Patent

active

053586794

ABSTRACT:
A process for the production of rayon fibers. The viscose solution is spun into a spinbath which is acidic in character but has no zinc salt like conventional baths. The spin bath contains sulphuric acid, aluminum sulphate and sodium sulphate. The spinning is at temperatures of 35.degree.-60.degree. C. Usual stretching and post spinning operations are carried out as necessary. The regenerated cellulose fibers obtained are of novel cross-sections, namely of `c` cross section not achieved ever before. The fibers exhibit increased luster and softness.

REFERENCES:
patent: 4402899 (1983-09-01), Hartmann et al.
patent: 4456749 (1984-06-01), Mandell et al.
patent: 4583984 (1986-04-01), Turunen et al.
Translation of U.S.S.R. 825,695 (Published Apr., 1981).
Translation of U.S.S.R. 852,978 (Published Aug., 1981).
Translation of U.S.S.R. 905,345 (Published Feb., 1982).
Translation of U.S.S.R. 933,835 (Published Jun., 1982).

Affiliated with

Also associated with

Rating

Manufacture of regenerated cellulosic fiber by zinc free viscose does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacture of regenerated cellulosic fiber by zinc free viscose, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of regenerated cellulosic fiber by zinc free viscose will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-133379