Method for manufacturing panels having a decorative surface

Patent metadata

Field	Value
Publication number	US-10906349-B2
Application number	US-201916580566-A
Country	US
Kind code	B2
Filing date	Sep 24, 2019
Priority date	Jan 10, 2014
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A method is provided for manufacturing a printed paper layer. The method may involve providing the paper layer with a printed pattern. Providing the printed pattern may involve depositing water based inks using a digital inkjet printer. The water based inks may be pigment containing inks. The dry weight of the deposited pigment containing inks may be lower than 9 grams per square meter. The paper layer may include an inkjet receiver coating, such that the inks are deposited on the inkjet receiver coating. The inkjet receiver coating may include a pigment having a pore volume of 0.5 to 3 ml/g.

First claim

What is claimed is:

1. A method for manufacturing a printed paper layer, the method comprising:
providing the paper layer with a printed pattern;
wherein providing the printed pattern involves depositing water based inks using a digital inkjet printer;
wherein the water based inks are pigment containing inks;
wherein the dry weight of the deposited pigment containing inks is lower than 9 grams per square meter;
wherein the paper layer at least includes an inkjet receiver coating, such that the inks are deposited on the inkjet receiver coating; and
wherein the inkjet receiver coating includes a pigment having a pore volume of 0.5 to 3 ml/g.

2. The method according to claim 1 , wherein the inkjet receiver coating includes a binder or a polymer.

3. The method according to claim 2 , wherein the binder is selected from the group consisting of polyvinyl alcohol, starch, gelatin, cationic additives, precipitated calcium carbonate, polymer latex, vinylacetate/ethylene copolymer, and carboxymethylcellulose.

4. The method according to claim 2 , wherein the pigment to binder ratio in the inkjet receiver coating is between 10:90 and 90:10.

5. The method according to claim 2 , wherein the polymer is a hydrophilic polymer.

6. The method according to claim 2 , wherein the pigment/polymer ratio in the inkjet receiver coating is at least 2.

7. The method according to claim 1 , wherein the pigment of the inkjet receiver coating is silica.

8. The method according to claim 1 , wherein the pigment of the inkjet receiver coating has a mean particle size of 0.01 to 40 micrometer.

9. The method according to claim 1 , wherein the inkjet receiver coating has a weight of 0.5 to 10 grams per square meter.

10. The method according to claim 1 , wherein the paper layer is a colored, pigmented and/or dyed base paper.

11. The method according to claim 1 , wherein the paper layer is suitable for rotogravure.

12. The method according to claim 11 , wherein the paper layer has a weight between 60 and 90 grams per square meter.

13. The method according to claim 1 , wherein the paper layer has a mean air resistance according to the Gurley method (Tappi T460) of below 30 seconds.

14. The method according to claim 1 , wherein the paper layer comprises titanium oxide as a whitening agent.

15. The method according to claim 1 , wherein the pigment containing inks include organic pigments.

16. The method according to claim 1 , wherein the pigments of the pigment containing inks have an average particle size of less than 250 nanometer.

Assignees

• Unilin Bv

Inventors

• Clement Benjamin

Classifications

• B44C5/04 Primary

  Ornamental plaques, e.g. decorative panels, decorative veneers · CPC title

• B41M5/5236

  characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose · CPC title

• B44C5/0469

  comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper · CPC title

• B41M5/5218 Primary

  characterised by inorganic additives, e.g. pigments, clays · CPC title

• B41M5/5254

  characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers · CPC title