Method and apparatus for treatment of thermoplastic fabric havin

Details Method and apparatus for treatment of thermoplastic fabric havin Method and apparatus for treatment of thermoplastic fabric havin

1990-10-24

1992-03-31

Schroeder, Werner H.

Textiles: cloth finishing

Pile fabrics

Electrifiers

D06C 2900

Patent

active

050995537

ABSTRACT:
A method and apparatus for continuous treatment of a web of thermoplastic pile fabric comprising heating the fabric to a temperature between the dyeing and heat setting temperature of the fabric, then vibrating the fabric biaxially by means of a rotating cylindrical roll with spaced protrusions or depressions along the exterior surface of the cylinder followed, optionally, by vibrating the fabric uniaxially by means of a second rotating cylindrical roll having flat portions continuously extending along the longitudinal axis of the second cylinder. The repeated and rapid front to back and side to side movement of individual pile fibers caused by multiple vibrational waves during biaxial treatment allows the fibers to return to their preferred heat-set orientation.

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