Textiles: manufacturing – Textile product fabrication or treatment – Fiber entangling and interlocking
Patent
1976-07-26
1978-04-25
Rimrodt, Louis K.
Textiles: manufacturing
Textile product fabrication or treatment
Fiber entangling and interlocking
D04H 146
Patent
active
040854850
ABSTRACT:
A process and device useful therein for hydraulically entangling the fibers in a fiber batt to form a non-woven fabric. The process includes applying at least one liquid curtain against the fiber batt while it is supported on a moving, apertured backing screen. The liquid curtain is uniform in width throughout its length and substantially non-diverging as it is delivered from a source of liquid under a pressure sufficient to effect entanglement of the fibers in the batt. Preferably, the pressure is at least about 200 p.s.i.g. and the maximum divergence of the curtain is about 4 degrees. The device for applying the liquid curtain includes first and second members and means for securing the members together to form a chamber therebetween in which the liquid is contained and to form a slot in communication from the chamber to the exterior of the device. The slot has a substantially uniform width along its length and preferably also a uniform depth. The securing means are adjustable so that the width of the slot can be varied; however, once the members are secured together the width of the slot remains constant as the curtain is delivered from the chamber, through the slot, and against the fiber batt.
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Brandon Ralph E.
Redner, III. Raymond
Ring Michael
International Paper Company
Rimrodt Louis K.
Schapira Ronald A.
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