Dipping System

Function /Description

In a foulard, the coating or impregating of the substrate is realised by dipping it completely. Depending on the viscosity of the coating raw material and on the substrate´s structure, the coating compound either attaches superficially to the substrate or it permeates completely through it. Thus, the texture of the substrate and the coating viscosity mainly define the application weight.

After the dipping, the surplus coating amount is squeezed off or scraped off. This can be realised between two rollers, the so-called squeezing rollers or by cleaning knives. Exemplary applications are: The impregnation of an open-structured substrate before the coating process or the complete dipping of glass fibres or glass non-wovens (for the production of circuit boards). In this case, the surplus coating raw material is evenly scraped off by bilateral polished rollers.

Examples