Method for making woven polypropylene fabric with frayed edges

Details Method for making woven polypropylene fabric with frayed edges Method for making woven polypropylene fabric with frayed edges

1997-01-03

1998-06-16

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 92, 156 93, 156148, 1562751, 139432, B32B 3112, B32B 3126

Patent

active

057663912

ABSTRACT:
A woven fabric is formed from polypropylene fibers by simply weaving the fabric using polypropylene fibers in both the warp and weft directions. The edges are left frayed and could become unraveled. In order to prevent the fabric from fraying further, particularly during washing, binding fibers are incorporated at least in the weft direction, but only along the edges. The binding fibers are polyester fibers coated with a low-melting-point thermoplastic adhesive. The thermoplastic adhesive is one that melts at a temperature lower than the melting point of the polypropylene fibers. Once these are incorporated into the fabric at the loom, the fabric is placed in an oven and heated to a temperature above the melting point of the thermoplastic adhesive and below the melting point of the polypropylene fibers to cause the thermoplastic adhesive to melt, binding the polypropylene fibers together. The ends of the fabric can be bonded together by either stitching, by binding fibers incorporated along the weft direction, or by the natural holding characteristics of some yarns such as cotton.

REFERENCES:
patent: 4251312 (1981-02-01), Ziegler, Jr. et al.
patent: 4421141 (1983-12-01), Brouwer
patent: 4467839 (1984-08-01), Westhead
patent: 4502513 (1985-03-01), Mueller
patent: 5167263 (1992-12-01), Kelen et al.
patent: 5185199 (1993-02-01), Sawyer et al.

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