Claims (14)
1. Postupak za proizvodnju dekorativnih podloga na bazi drvenih vlakana ili mineralnih vlakana, naznačen time što obuhvaća korake:
(a) premazivanja podloge (2) tekućim reaktivnim pripravkom na koji se nakon sušenja može nanositi digitalni tisak;
(b) sušenja reaktivne kompozicije premazane na podlozi tako da nastaje osnovni sloj (3) s takvom propusnošću da može adsorbirati i osloboditi bilo kakve proizvode kondenzacije nastale tijekom koraka (d) i (e);
(c) digitalnog tiskanja dekora (4) na osnovnom sloju upotrebom tekuće tinte;
(d) sušenja ili umrežavanja tekuće tinte tvoreći digitalno otisnuti dekor; i
(e) premazivanja digitalno otisnutog dekora pokrovnim slojem (5) pod uvjetima koji osiguravaju umrežavanje i osnovnog sloja i pokrovnog sloja.1. Process for the production of decorative substrates based on wood fibers or mineral fibers, characterized by the fact that it includes the following steps:
(a) coating the substrate (2) with a liquid reactive composition on which digital printing can be applied after drying;
(b) drying the reactive composition coated on the substrate to form a base layer (3) with such permeability that it can adsorb and release any condensation products formed during steps (d) and (e);
(c) digital printing of the decor (4) on the base layer using liquid ink;
(d) drying or cross-linking the liquid ink to form a digitally printed decor; and
(e) coating the digitally printed decor with a cover layer (5) under conditions that ensure cross-linking of both the base layer and the cover layer.
2. Postupak prema zahtjevu 1, naznačen time što su podloge paneli ili ploče.2. The method according to claim 1, characterized in that the substrates are panels or plates.
3. Postupak prema zahtjevu 1, naznačen time što su podloge na bazi HDF.3. Method according to claim 1, characterized in that the substrates are based on HDF.
4. Postupak prema bilo kojem od zahtjeva 1 do 3, naznačen time što se tekući reaktivni pripravak formulira kao dvokomponentni pripravak.4. The method according to any one of claims 1 to 3, characterized in that the liquid reactive preparation is formulated as a two-component preparation.
5. Postupak prema bilo kojem od zahtjeva 1 do 4, naznačen time što je tekući reaktivni pripravak na bazi vode.5. The method according to any one of claims 1 to 4, characterized in that the liquid reactive composition is water-based.
6. Postupak prema zahtjevu 4 ili 5, naznačen time što prva komponenta sadrži hidroksi funkcionalne polimere.6. The method according to claim 4 or 5, characterized in that the first component contains hydroxy functional polymers.
7. Postupak prema bilo kojem od zahtjeva 4 do 6, naznačen time što druga komponenta dvokomponentnog pripravka sadrži izocijanatne i/ili aziridinske otvrdnjivače.7. The method according to any one of claims 4 to 6, characterized in that the second component of the two-component preparation contains isocyanate and/or aziridine hardeners.
8. Postupak prema bilo kojem od zahtjeva 1 do 7, naznačen time što reaktivni pripravak ima viskoznost u rasponu između 1 i 3 Pas na 20°C.8. The method according to any one of claims 1 to 7, characterized in that the reactive preparation has a viscosity in the range between 1 and 3 Pas at 20°C.
9. Postupak prema bilo kojem od zahtjeva 1 do 8, naznačen time što se korak (d) provodi zagrijavanjem podloge koja na sebi ima digitalno otisnut dekor, na temperaturu od 70 do 250°C, poželjno tijekom razdoblja od 2 do 30 sekundi.9. The method according to any one of claims 1 to 8, characterized in that step (d) is carried out by heating the substrate, which has a digitally printed decor on it, to a temperature of 70 to 250°C, preferably for a period of 2 to 30 seconds.
10. Postupak prema bilo kojem od zahtjeva 1 do 9, naznačen time što se korak (c) provodi upotrebom tinte na bazi vode.10. The method according to any one of claims 1 to 9, characterized in that step (c) is carried out using a water-based ink.
11. Postupak prema bilo kojem od zahtjeva 1 do 10, naznačen time što se digitalni tisak u koraku (c) provodi upotrebom Drop-on-Demand (DOD) inkjet sustava.11. The method according to any one of claims 1 to 10, characterized in that the digital printing in step (c) is carried out using a Drop-on-Demand (DOD) inkjet system.
12. Postupak prema bilo kojem od zahtjeva 1 do 11, naznačen time što pokrovni sloj nanesen u koraku (e) obuhvaća melaminsku smolu.12. The method according to any one of claims 1 to 11, characterized in that the covering layer applied in step (e) comprises melamine resin.
13. Postupak prema bilo kojem od zahtjeva 1 do 12, naznačen time što se korak (e) provodi pritiskanjem na temperaturi u rasponu od 100 do 300°C, pod tlakom od 20 do 60 kg/cm2 i/ili tijekom razdoblja od 2 do 30 sekundi.13. The method according to any one of claims 1 to 12, characterized in that step (e) is carried out by pressing at a temperature in the range of 100 to 300°C, under a pressure of 20 to 60 kg/cm2 and/or during a period of 2 to 30 seconds.
14. Postupak prema bilo kojem od zahtjeva 1 do 13, naznačen time što nadalje obuhvaća korak osiguravanja zadnje strane panela balansnim papirom ili slojem laka.14. The method according to any one of claims 1 to 13, characterized in that it further comprises the step of securing the rear side of the panel with balance paper or a layer of varnish.