Patent ID: 6037009
Filing Date: 2000-03-14
Classification: B05B,B05C

Abstract:
A method of spraying an adhesive in a selected pattern on a continuously moving web comprising the steps of:(a) continuously supplying a predetermined volumetric flow of said adhesive through an adhesive supply line to a nozzle;(b) selectively operating said nozzle between an off position and an on position to spray said volumetric flow of said adhesive in said selected pattern on said moving web wherein substantially said entire volumetric flow of said adhesive is sprayed from said nozzle when said nozzle is operated in said on position;(c) diverting said volumetric flow of said adhesive from said nozzle through an adhesive divert line when said nozzle is operated in said off position by operating a valve means from a closed position to an open position when said nozzle is operated from said on position to said off position; and(d) maintaining a back pressure of at least about 344,750 Pascals (50 psi) at said nozzle when said nozzle is operated in said off position to provide a substantially instantaneous spray of said adhesive when said nozzle is operated from said off position to said on position.