Textiles: manufacturing – Thread finishing – Surface modification of running length
Patent
1991-07-25
1994-05-03
Crowder, Clifford D.
Textiles: manufacturing
Thread finishing
Surface modification of running length
28240, D01D 514
Patent
active
053075471
ABSTRACT:
Threads consisting of one or more filaments are drawn by being pulled through a braking fluid. Threads consisting of a plurality of filaments are formed into a ribbon for the drawing process. Inside the drawing bath, the thread is heated to a temperature corresponding to its second order transition temperature and is braked in such a way that its tension reaches the tension necessary for drawing the filament or the filaments. Through setting and/or controlling the length of the thread path inside the braking fluid, the viscosity of the fluid, additional mechanical braking means and/or the flow characteristics in the bath, the process is made adaptable for different thread materials and different thread speeds and can be optimized for thread quality. The device for carrying out the process has a quasi-closed main chamber through which a braking fluid is circulated. An antechamber with a variable fluid level may be arranged in front of the entrance to the main chamber. The chambers are formed by two parts that can be folded apart to facilitate threading up.
REFERENCES:
patent: 3002804 (1961-10-01), Kilian
patent: 3068062 (1962-12-01), Morgan, Jr.
patent: 3077004 (1963-02-01), Mummery
patent: 3124631 (1964-03-01), Davis et al.
patent: 3379811 (1968-04-01), Hartmann et al.
patent: 3497910 (1970-03-01), Maeda et al.
patent: 4059668 (1977-11-01), Bittle et al.
patent: 4863662 (1989-09-01), Hasegawa et al.
patent: 5046225 (1991-09-01), Graf
Crowder Clifford D.
Hand Francis C.
Mohanty Bibhu
Rieter Machine Works Ltd.
LandOfFree
Process and device for hydrodynamic drawing of a polymer 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 and device for hydrodynamic drawing of a polymer thread, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for hydrodynamic drawing of a polymer thread will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2106524