Method and apparatus for deregistering multi-filament tow and product thereof

Patent · Sun Jan 01 00:00:00 EST 1995

OSTI ID:869917

Lukhard, Craig R ^[1]; Potter, Jerry F ^[2]; Todd, Maurice C ^[3]

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1. Newark, DE
2. Seaford, DE
3. Chadds Ford, PA

A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means for sensing the tension of the tow between the feed and draw sections of a stretching device and producing a signal representative of the tension sensed and a controller for changing the speed of the draw section actuated by said signal.

• Research Organization: Battelle Memorial Institute, Columbus, OH (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE)
• Patent Number(s): US 5422180
• OSTI ID: 869917
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
deregistering
multi-filament
product
drawn
crimped
nylon
multifilament
steps
stretching
constant
controlled
tension
temperature
below
glass
transition
means
sensing
feed
draw
sections
device
producing
signal
representative
sensed
controller
changing
speed
section
actuated
signal representative
temperature below
transition temperature
glass transition
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