Apparatus for producing a coating on a laminar carrier member

US4850838A · kind A · utility

Assignee

• J.H. Benecke AG · DE

Inventors

• Werner Wagner · Bad Nenndorf, DE
• Philipp Schaefer · Wattenscheid, DE
• Horst Buscher · Langenhagen, DE

Key dates

• Filing date: Jun 3, 1988
• Grant date: Jul 25, 1989
• Expiry date: Jun 3, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C14B7/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

An apparatus for producing a coating on a laminar carrier member, in particular for dressing split leather or similar substrates, comprises a supporting base having a surface consisting of silicon rubber or silicone resin, onto which surface is applied a liquid coating material by means of an electrostatic spraying device arranged above the supporting base for the purpose of producing a foil forming the visible side of the coating after solidification of the coating material. The surface of the supporting base is preferably provided with an embossed pattern, for example with the grain structure of natural leather. For the purpose of improving the adhesion of the foil, formed by solidification of the liquid coating material, on the supporting base, the surface of this supporting base is provided with a microscopic roughness. Alternatively, the area of the supporting base adjacent the aforesaid surface is made electrically conductive and held at a predetermined electrical potential. Microscopic roughness can be obtained by embedding filler materials within the area of the surface of the supporting base. Microscopic roughness can, also be obtained by mechanical, electrical, and/or che…