Process for the manufacture of reels of nitrocellulose thread

Details Process for the manufacture of reels of nitrocellulose thread Process for the manufacture of reels of nitrocellulose thread

1984-10-01

1985-10-08

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

8154, 8155, 81551, 8530, 536 42, C08B 502, D06B 516

Patent

active

045461759

ABSTRACT:
According to the invention the reels 10 of cellulose thread wound in a loose manner around a hollow perforated core are arranged on the nozzles 9 carried by the hollow arms 8 of a rotor 7a placed on a hollow frame 7 situated at the bottom of a tank 6. A pump 13 causes the nitrating medium 15 consisting of a mixture of nitric acid and methylene chloride to circulate into the pipe 14 from where it passes into the frame 7 and then to the rotor 7a from where it is brought under pressure via the pipes 8 and the nozzles 9 to the hollow perforated core of each reel. The nitrating medium then passes radially along the mass of thread making up each reel and returns to the pump 13 via the pipes 12. After nitration the nitrocellulose threads are immediately stabilized by washing them with water in a similar installation to that used for nitration.
The process according to the invention makes it possible to manufacture reels of nitrocellulose thread of good quality in a simple manner in large quantities without the manufacturer having to perform delicate unwinding and reeling operations on the thread before and after nitration.

REFERENCES:
patent: 1859037 (1932-05-01), Huttinger
patent: 2384415 (1945-09-01), Berl
patent: 3145398 (1964-08-01), Wyatt
patent: 3413080 (1968-11-01), Schlagenhof et al.
patent: 3534018 (1970-10-01), Brissaud et al.
patent: 3926552 (1975-12-01), Bruckner
patent: 4135268 (1979-01-01), von der Eltz et al.
patent: 4410694 (1983-10-01), Nakayama et al.

Affiliated with

Also associated with

Rating

Process for the manufacture of reels of nitrocellulose thread 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 for the manufacture of reels of nitrocellulose thread, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of reels of nitrocellulose thread will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2220906