Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1978-12-01
1980-12-30
Woo, Jay H.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
156 79, 264 453, 264 463, 264282, 264286, 425115, 425397, 428317, B29J 102, B32B 326
Patent
active
042424097
ABSTRACT:
The fibrous structure of a non-woven mat is disrupted by an apparatus comprising at least one roll which has one or more upraised ribs in a chevron pattern extending helically around the roll. In processing, the mat passes under tension over at least a portion of at least one chevron roll and preferably over two chevron rolls which may or may not be intermeshing. Thereafter, the mat may be crushed or crimped by being fed through to intermeshing third and fourth chevron rolls. Additional rolls may be supplied to exert tension. The mat which exits from the apparatus has a disrupted fibrous structure and is a superior skeleton within a structure such as a polymeric foam board.
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Shelter Insulation, Inc.
Woo Jay H.
LandOfFree
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