METHOD FOR THE PRODUCTION OF A CHAFE RESISTANT OVERLAY

• US 20090208646A1
• Filed: 02/11/2009
• Published: 08/20/2009
• Est. Priority Date: 02/12/2008
• Status: Abandoned Application

• Current Assignee: Dekor-Kunststoffe GmbH
• Original Assignee: Dekor-Kunststoffe GmbH
• Inventors: Fischer, Klaus, Kreuder, Reinhard
• Application Number:
  US12/369,059
• Publication Number:
  US 20090208646A1
• Time in Patent Office: Days
• US Class Current: 427/209
• CPC Class Codes: B44C 5/0476 with abrasion resistant properties
• CPC Class Codes: D21H 19/385 Oxides, hydroxides or carbonates
• CPC Class Codes: D21H 27/26 characterised by the overlay sheet or the top layers of the structures decorative panels B44C5/04; wood grain effects B44F9/02

Abstract

The invention relates to a method (100) for the production of an overlay, in particular for laminates. For this, firstly an overlay base paper (10) is impregnated in the usual manner and is coated on one side with a resin/coarse corundum application. In order to endow the overlay with additional characteristics, such as for example chafe resistance on the surface, in a further wet-in-wet application step a coating substance (29) is applied on the opposite side and is dosaged by a wiper (31).

Claims

1. Method (100) for the production of an overlay, in particular for laminates, with the following method steps:

a) Unrolling of an overlay base paper from a roll for the purpose of obtaining a paper web (10);

b) Moistening of the paper web (10) on one side with an impregnating medium (14);

c) Impregnating the paper web (10) in the core thereof and dosaging of the application of an impregnating medium provided for the impregnation;

d) Wet-in wet application of a coarse corundum/resin dispersion (27) on one side onto the paper web (10) and dosaging of the application;

e) Opposite wet-in-wet application of a coating substance (29) onto the paper web (10);

f) Dosaging of the applied coating substance (29) by a dosaging device (30), in particular by at least one wiper (31, 32), to the desired application weight;

g) Drying the paper web (10) using an entire drying duct length and capacity.

2. Method according to claim 1, characterized in that after impregnating of the paper web (10), a washing of the paper web (10) on one side takes place by a resin/coarse corundum dispersion (27).

3. Method according to claim 1, characterized in that the wet-in-wet application of the coating substance (29) on one side takes place in the form of a resin/additive application.

4. Method according to claim 1, characterized in that the coating substance (29) is guided between two wipers (31, 32).

5. Method according to claim 1, characterized in that the underside of the paper web (10) is brought against the wiper (31, 32) and is wiped off by the wiper (31, 32).

6. Method according to claim 1, characterized in that the coating substance (29) is applied distributed uniformly.

7. Method according to claim 1, characterized in that the coating substance (29) is supplied to the paper web (10) through an inlet gap.

8. Impregnating device to carry out the method according to claim 1.