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Browse Prior Art Database

Fabric Ribbon Weld Composite

IP.com Disclosure Number: IPCOM000101056D
Original Publication Date: 1990-Jun-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 1 page(s) / 31K

Publishing Venue

IBM

Related People

Clift, MD: AUTHOR [+5]

Abstract

The nylon fabric ribbon loop weld area is improved by an ultrasonically fused layer of polyurethane onto the formed nylon film within the weld. A composite weld is achieved during the second phase of welding where a polyurethane film is interposed after ribbon realignment onto the nylon bead being flattened by ultrasonic energy under pressure. The polyurethane film does not laminate onto the adjacent fabric weave and separates by peel forces at the weld/fabric interface. The extraneous polyurethane film is then advanced to expose a continuous area for the next ribbon manufacturing sequence.

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Fabric Ribbon Weld Composite

       The nylon fabric ribbon loop weld area is improved by an
ultrasonically fused layer of polyurethane onto the formed nylon film
within the weld.  A composite weld is achieved during the second
phase of welding where a polyurethane film is interposed after ribbon
realignment onto the nylon bead being flattened by ultrasonic energy
under pressure.  The polyurethane film does not laminate onto the
adjacent fabric weave and separates by peel forces at the weld/fabric
interface.  The extraneous polyurethane film is then advanced to
expose a continuous area for the next ribbon manufacturing sequence.

      The advantage of increased abrasion resistance and decreased
film embossment is improved durability, where weld life is at least
equal to the expected fabric life.

      The finish step is given in the following example:  4.0 mil
nylon fabric weld has 1.0 mil TUFTANE TF340 polyurethane film (from
Lord Chemical (polyester type for oil resistance)) ultrasonically
bonded via a REM 8401 Branson machine.  The figure illustrates the
final composite step.