Method for manufacturing panels having a decorative surface
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 paper layer may have a mean air resistance according to the Gurley method (Tappi T460) of below 30 seconds.
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 paper layer has a mean air resistance according to the Gurley method (Tappi T460) of below 30 seconds.
2. The method according to claim 1 , wherein the inkjet receiver coating includes a binder or a polymer and a pigment.
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 2 , wherein the pigment of the inkjet receiver coating is silica.
8. The method according to claim 2 , 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 comprises titanium oxide as a whitening agent.
14. The method according to claim 1 , wherein the pigment containing inks include organic pigments.
15. The method according to claim 1 , wherein the pigments of the pigment containing inks have an average particle size of less than 250 nanometer.