Non-woven textile fiber products having a relief-like structure

Details Non-woven textile fiber products having a relief-like structure Non-woven textile fiber products having a relief-like structure

1974-05-29

1976-04-13

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

28 722R, 156148, 428255, 428300, 428304, B32B 506

Patent

active

039505871

ABSTRACT:
A method of producing non-woven, composite fabrics where at least two distinct layers of fibers, one of highly retractable fibers and the other of non-retractable fibers, are superposed into a composite batt; the batt is pattern-needled from the side of the highly retractable fibers, thereby punching portions of these fibers through the other fiber layer so that they protrude as bristles or loops on the other side; whereupon the entire opposite surface of the batt is needled so that the protruding highly retractable fibers are needled back into the batt forming hooks around some of the non-retractable fibers in the line regions of pattern needling. When this felted batt is now heat-treated to induce retraction, the hooks of retracting fibers in the pattern lines contract and close, while the non-retracting fibers in the pattern interstices are laterally compressed and partially raised as a result of the overall area shrinkage on the fabric, thereby creating a three-dimensional boucle-type surface.

REFERENCES:
patent: 2910763 (1959-11-01), Lauterbach
patent: 2958113 (1960-11-01), Lauterbach
patent: 3243861 (1966-04-01), Kumin et al.

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