Patent ID: 6066217
Filing Date: 2000-05-23
Classification: B29C,B29K,B29L,B32B

Abstract:
A method for vibration welding of a fabric such as a carpet or the like to a thermoplastic substrate, said method comprising the steps of:placing a flexible fabric having a plurality of high density and low density fiber regions on the substrate so that a bottom surface of the fabric is in intimate pressurized contact with said substrate at an interface thereof which extends over an effectively continuous and substantial portion of the bottom surface of the fabric;displacing said fabric and substrate relative to one another while in intimate pressurized surface contact with each other to soften substrate zones which are juxtaposed said high density fiber regions to cause an interpenetration of said substrate zones with juxtaposed high density regions of the fabric; and ceasing said relative displacing step to enable the formation of bonds between said fabric and said substrate at said substrate distributed zones.