What is the principle of Trickle Varnishing Machine?
According to the principle of Impregnation, activated resin is trickled in a thin jet on to the rotating preheated winding. The resin immediately gets heated and its viscosity is reduced. Due to the rotary motion of the winding the resin gets distributed evenly inside the winding without any drain loss. The heated winding accelerates the gelling and curing of the resin. Types of the machines Basically varnishing machine can be specified in two parts depending on the method of varnishing. One is Trickle Varnishing Machine and other is Vacuum Pressure impregnation plant. Models available in Trickle Varnishing Machine According to the size of the job to be impregnated and production rate, three models have been established. 1) Indexing table type varnishing machine, 2) Batch type Horizontal table type varnishing machine, 3) Conveyorised system for varnishing.
