Apparatus and method for use in-line with a card to enhance tens

Details Apparatus and method for use in-line with a card to enhance tens Apparatus and method for use in-line with a card to enhance tens

1990-01-16

1991-02-12

Schroeder, Werner H.

Textiles: fiber preparation

Assembling

Web forming

28103, D04H 170

Patent

active

049912640

ABSTRACT:
The cross direction tensile strength of a carded web is increased by 30% to 50%, without a decrease in machine direction tensile strength, by realigning the fibers of the carded web at least partially in the cross direction. In the preferred embodiment, an air blower manifold is arranged above a scrambler roll onto which a carded web is transferred from a doffer roll at the output end of a conventional card. The air blower manifold has a plurality of louvers spaced across the width of the web in the cross direction for realigning the fibers in the cross direction. The increase in cross directional tensile strength is obtained in the resulting bonded, hydroentangled, and other nonwoven fabrics.

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