Nylon spin-draw process with steam conditioning

Details Nylon spin-draw process with steam conditioning Nylon spin-draw process with steam conditioning

1981-05-01

1983-08-02

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642107, 2642108, D01D 516

Patent

active

043965709

ABSTRACT:
This invention is a continuous process for spinning and drawing polycarbonamide filaments as a continuous running length comprising spinning the filaments Y from the molten polymer through a spinnerette 3 into a quench stack 4 and immediately quenching the freshly spun filaments in a quench stack with a flowing quench medium and immediately applying a yarn finish so that after quenching and applying finish, the surface temperature of the filaments is below the second order transition temperature for the filaments at the ambient conditions, and immediately applying steam in a chamber 15 around the continuous running length of filaments at a temperature at from about 60.degree. C. to 95.degree. C. for periods from about 0.03 to 3 seconds and immediately drawing the filaments; and the apparatus to accomplish that process.

REFERENCES:
patent: 2289860 (1942-07-01), Babcock
patent: 3039171 (1962-06-01), Hume et al.
patent: 3291880 (1966-12-01), Pitzl
patent: 3346684 (1967-10-01), Gosden
patent: 3414646 (1968-12-01), Pitzl
patent: 3550369 (1970-12-01), Pitzl
patent: 3732346 (1973-05-01), Mallonee et al.
patent: 3761556 (1973-09-01), Thom et al.
patent: 3994121 (1976-11-01), Adams
patent: 4204828 (1980-05-01), Peckinpaugh et al.
patent: 4229500 (1980-01-01), Adachi et al.
patent: 4237187 (1980-12-01), Raybon et al.

Affiliated with

Also associated with

Rating

Nylon spin-draw process with steam conditioning does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nylon spin-draw process with steam conditioning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nylon spin-draw process with steam conditioning will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-483446