Method for Producing a Matt Support Material Provided With an Anti-Fingerprint Coating

Patent metadata

Field	Value
Publication number	US-2023191451-A1
Application number	US-202318170028-A
Country	US
Kind code	A1
Filing date	Feb 16, 2023
Priority date	May 13, 2019
Publication date	Jun 22, 2023
Grant date	—

Abstract

Provided is method for producing a support material provided with at least one anti-fingerprint coating including the steps of applying at least one layer of at least one powdered resin to at least one side of the support material; melting on the at least one applied layer of the one powdered resin; applying at least one acrylate-containing dispersion to the melted-on resin layer; and drying and curing the layered structure.

First claim

1 . A paper layer provided with a matt-surface coating with anti-fingerprint properties, wherein the matt surface coating comprises a melted-on resin powder and a cured acrylate layer, wherein the matt surface coating has a gloss level of less than 10.

2 . The paper layer according to claim 1 , wherein the paper layer is a decorative paper layer or an overlay paper layer.

3 . The paper layer according to claim 1 , wherein the matt surface coating has a gloss level of less than 8.

4 . The paper layer according to claim 1 , wherein the matt surface coating has a gloss level of less than 5.

5 . The paper layer according to claim 1 , wherein the cured acrylate layer is obtained from a radiation-curable acrylate-containing varnish, in particular selected from polyether (meth)acrylates, polyether (meth)acrylates, epoxy (meth)acrylates or urethane (meth)acrylates.

6 . The paper layer according to claim 1 obtained in a method comprising the steps of:
applying at least one first layer of at least one powdered resin to at least one side of a paper layer and melting-on the at least one applied layer of powdered resin;
applying at least one acrylate-containing dispersion to the melted-on resin layer; and
drying and hardening of the layered structure.

7 . The paper layer according to claim 5 , wherein the amount of powdered resin applied to the paper layer is of 10 to 100 g/m 2 , preferably 20 to 80 g/m 2 , more preferably 25 to 70 g/m 2 .

8 . The paper layer according to claim 5 , wherein the amount of the acrylate-containing dispersion applied is between 30 and 50 g fl./m 2 , preferably between 30 and 40 fl./m 2 .

9 . The paper layer according to claim 5 , wherein the solids content of the acrylate-containing dispersion applied is between 40 and 60% by weight, preferably 50% by weight.

10 . A wood-based panel provided with a matt-surface coating with anti-fingerprint properties, wherein the matt surface coating comprises a melted-on resin powder and a cured acrylate layer, and wherein the matt surface coating has a gloss level of less than 10.

11 . The wood-based panel according to claim 9 , wherein the wood-based panel is one of medium-density fiber (MDF), high-density fiber (HDF) or rough particleboard (OSB), a plywood panel or a wood-plastic composite (WPC) panel or a stone-plastic composite (SPC) panel.

12 . The wood-based panel according to claim 9 , wherein the matt-surface coating has a gloss level of less than 8.

13 . The wood-based panel according to claim 9 , wherein the matt-surface coating has a gloss level of less than 5.

14 . The wood-based panel according to claim 9 , wherein the cured acrylate layer is obtained from a radiation-curable acrylate-containing varnish, in particular selected from polyether (meth)acrylates, polyether (meth)acrylates, epoxy (meth)acrylates or urethane (meth)acrylates.

15 . The wood-based panel according to claim 9 , having the following layered structure (viewed from bottom to top): optional backing layer; wood-based panel; first resin layer of melted-on resin powder; print decor layer; second resin layer of melted-on resin powder (protective layer); and cured acrylate layer.

16 . The wood-based panel according to claim 15 obtained in a method comprising the steps of:
applying at least one first layer of at least one powdered resin to at least one side of the support material and melting-on the at least one applied layer of powdered resin;
applying at least one decorative layer to the at least one melted-on resin layer by a direct printing method;
applying at least one further, second layer of at least one powdered resin to the at least one printed decorative layer;
melting-on the at least one layer of the one powdered resin deposited on the decorative layer;
applying at least one acrylate-containing dispersion to the melted-on resin layer; and
drying and hardening of the layered structure.

17 . The wood-based panel according to claim 9 , having the following layered structure:
(viewed from bottom to top): optionally backing layer; wood-based panel; first resin layer of melted-on resin powder; undercoat layer; primer layer; print decor layer; layer of abrasion-resistant particles; second resin layer of melted-on. resin powder (protective layer); and cured acrylate layer.

18 . The wood-based panel according to claim 9 , having the following layer structure (viewed from bottom to top): optional backing layer; wood-based panel; first resin layer of melted-on resin powder; undercoat layer; primer layer; print decor layer; second resin layer of melted-on resin powder (protective layer); layer of abrasion-resistant particles; third resin layer of melted-on resin powder (release layer); glass beads (spacers); fourth resin layer of melted-on resin powder; and cured acrylic layer.

19 . The wood-based panel according to claim 16 , wherein the at least one undercoat comprises casein, corn starch or soy protein.

20 . The wood-based panel according to claim 17 , wherein the at least one undercoat comprises casein, corn starch or soy protein.

21 . The wood-based panel according to claim 16 , wherein the amount of powdered resin applied to the paper layer is of 10 to 100 g/m 2 , preferably 20 to 80 g/m 2 , more preferably 25 to 70 g/m 2 .

22 . The wood-based panel according to claim 17 , wherein the amount of powdered resin applied to the paper layer is of 10 to 100 g/m 2 , preferably 20 to 80 g/m 2 , more preferably 25 to 70 g/m 2 .

Assignees

• Flooring Technologies Ltd

Inventors

• Kalwa Norbert
• Hasch Joachim
• Stiewe Bernd

Classifications

• B05D1/30

  performed by gravity only, i.e. flow coating · CPC title

• B05D7/576

  each layer being cured, at least partially, separately · CPC title

• B05D1/06

  Applying particulate materials · CPC title

• B05D5/02 Primary

  to obtain a matt or rough surface · CPC title

• B44C5/0476

  with abrasion resistant properties · CPC title