Apparatus and method for processing shear sensitive coating compositions

US12214373B2 · kind B2 · utility

Assignee

• Olbrich GmbH · DE

Inventors

• Ingo VOLMERING · Bocholt, DE
• Fabian SCHINDLER · Recklinghausen, DE
• Frans Te Welscher · Bocholt, DE

Key dates

• Filing date: Jul 18, 2019
• Grant date: Feb 4, 2025
• Expiry date: Sep 12, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D1/28
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a device for processing shear-sensitive coating compounds (100), with a transfer roller (1) and a doctor blade (2), in particular a comma doctor blade, which are spaced apart from one another to form a coating nip (3), the device further having an outlet nozzle (4) for dosing a coating compound (100), the outlet nozzle (4) facing a lower nip opening (6) of the coating nip (3) with its nozzle opening (5), wherein the device comprises a forced conveying system (7) via which a coating compound (100) is dosed into the coating nip (3), the transfer roller (1) and the doctor blade (2) being arranged next to each other, so that the coating nip (3) is permeable in the vertical direction (z), wherein the coating nip (3) is between 30 and 400 μm and the outlet nozzle (4) is an outlet of a rinsing chamber (8) arranged below the coating nip (3). A corresponding method is also described.