Patterned shearing of pile fabrics

Details Patterned shearing of pile fabrics Patterned shearing of pile fabrics

1997-07-22

2000-03-14

Rada, Rinaldi I.

Cutting

Processes

With preparatory or simultaneous ancillary treatment of work

83 761, 83 769, 83176, 83349, 83915, 83869, 26 86, 26 16, D06C 2302

Patent

active

060357495

ABSTRACT:
A method and apparatus by which selected pile across the face of a web of pile fabric such as carpet may be raised or lowered in accordance with a pattern as the fabric passes through shearing apparatus so that certain pile of the pile may be sheared more than other pile to provide a sculptured affect. Nozzles extend across the width of the fabric and apply jets of air from controllable valves to impinge on the pile in its path to compress or raise selected pile in accordance with a pattern controller which controls the valves. Locating the nozzles so that jets of air impinge on the pile upstream from the shearing apparatus in a direction downstream toward the shearing apparatus will raise the pile while locating the nozzles so that the jets of air impinge upon the pile prior to the shearing location in an upstream direction will compress the pile. The pile which is raised is cut further than pile which is not raised and cut even further than the pile that is compressed. Pile which is cut more than the other pile will result in lower pile in the sculptured carpet.

REFERENCES:
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patent: 1737086 (1929-11-01), Horstmann
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patent: 4649606 (1987-03-01), Fay
patent: 4882818 (1989-11-01), Weathers et al.
patent: 5016328 (1991-05-01), Gilpatrick
patent: 5165151 (1992-11-01), Nakagawa
patent: 5379498 (1995-01-01), Nielsen et al.
patent: 5446950 (1995-09-01), Shibata

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