Conversion of nonwoven fabric into staple fibers

Details Conversion of nonwoven fabric into staple fibers Conversion of nonwoven fabric into staple fibers

1974-05-31

1976-03-02

Newton, Dorsey

Plastic article or earthenware shaping or treating: apparatus

Air felting type shaping means

Means forming running length product

19 83, 19 96, 28 4R, B29D 700

Patent

active

039415309

ABSTRACT:
Nonwoven fabric is fed at a first rate into the bite between a first shredding element and a stationary working surface. The first shredding element has a plurality of projections which penetrate the fabric and at least substantially shred the fabric as the first shredding element is moved past the working surface at a second rate substantially greater than said first rate. The at least substantially shredded fabric then passes between the first shredding element and a second shredding element, the latter being driven at a third rate substantially different from said second rate to effect additional shredding and to separate the resulting staple fibers. A forced draft fan pulls air past the fabric as the fabric is being worked, to maintain the fabric temperature below the fusion temperature of the fibers.

REFERENCES:
patent: 8634 (1852-01-01), Kellog
patent: 1425920 (1922-08-01), Osten
patent: 2824610 (1968-02-01), Schubert et al.

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