Digital-printing-structured anti-wear film

Patent metadata

Field	Value
Publication number	US-11014399-B2
Application number	US-201916959751-A
Country	US
Kind code	B2
Filing date	Jun 18, 2019
Priority date	Oct 2, 2018
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

The present disclosure proposes a method for producing a structured wear protection film. The method comprises the steps: providing a wear protection base film, applying a formable lacquer-containing cover layer onto at least a partial area of the wear protection base film, at least partial structuring the lacquer-containing cover layer by use of a digital printing process in order to produce a structure of the lacquer-containing cover layer and at least partially hardening the lacquer-containing cover layer. Moreover, a structured wear protection film, the use of a structured wear protection film and a decorative panel comprising a structured wear protection film are proposed. In summary, the above-described method offers the advantage that a particularly detailed structure of a wear protection surface can be obtained, that the structure can be aligned in various ways in a particularly simple manner relative to a decoration, that an economical production of small series is made possible and that restrictions in the process control are alleviated.

First claim

The invention claimed is:

1. A method for producing a structured wear protection film, comprising the steps:
a. providing a wear protection base film;
b. applying of a formable lacquer-containing cover layer onto at least a partial area of the wear protection base film;
c. at least partially structuring the lacquer-containing cover layer by use of a digital printing process in order to produce a structure of the lacquer-containing cover layer; and
d. at least partially hardening the lacquer-containing cover layer, wherein the partial structuring of the lacquer-containing cover layer by use of a digital printing process is carried out by spraying a displacement ink by use of an ink jet process.

2. The method according to claim 1 , wherein the wear protection base film and/or the formable lacquer-containing cover layer comprises an acrylate-based plastic composition, in particular a polyurethane-modified acrylate plastic composition.

3. The method according to claim 1 , wherein the wear protection base film and/or the formable lacquer-containing cover layer comprises hard materials, preferably in an amount between 5 wt.-% and 40 wt.-%, wherein the hard materials preferably have an average grain diameter between 10 μm and 250 μm.

4. The method according to claim 1 , wherein the formable lacquer-containing cover layer has a thickness of ≥1 μm to ≤5 mm, preferably from ≥1 μm to ≤200 μm, in particular from ≥1 μm to ≤20 μm.

5. The method according to claim 1 , wherein the formable lacquer-containing cover layer comprises a material which is hardenable by electromagnetic radiation, in particular a material which is hardenable by UV radiation and/or IR radiation.

6. The method according to claim 1 , wherein a drop speed, a drop volume and a position of the sprayed displacement ink are varied according to a three-dimensional digital template.

7. The method according to claim 1 , wherein the hardening is carried out by use of UV radiation with a wavelength in a range from ≥10 nm to ≤450 nm.

8. The method according to claim 1 , wherein the hardening is carried out in a first hardening step by use of UV radiation in a range from ≥315 nm to ≤450 nm, preferably ≥380 nm to ≤410 nm, and in a second hardening step by use of UV radiation in a range from ≥10 nm to ≤250 nm, preferably from ≥170 nm to ≤225 nm.

9. The method according to claim 1 , additionally comprising the steps:
g. providing a carrier which comprises a decoration on at least a partial area of the carrier; and
h. applying the wear protection base film onto the decoration,
wherein the application of the wear protection base film onto the decoration is carried out prior to the application, structuring and at least partial hardening of the lacquer-containing cover layer, wherein the structure of the lacquer-containing cover layer is preferably created at least partially in synchronism with the decoration.

10. A structured wear protection film preferably produced by the method according to claim 1 , comprising a wear protection base film with a lacquer-containing cover layer applied and fixed at least to a partial area of the wear protection base film, wherein the lacquer-containing cover layer comprises structures created by the digital printing process.

11. Use of a structured wear protection film according to claim 10 for protecting a decorative panel, wherein the decorative panel comprises a carrier and a decoration on at least a partial area of the carrier and the structured wear protection film is applied onto the decoration, and wherein during the application of the structured wear protection film the structure of the lacquer-containing cover layer is at least partially aligned with the decoration.

12. A decorative panel with a structured wear protection film, comprising a carrier with a decoration applied onto at least one partial area and a structured wear protection film according to claim 10 applied onto the decoration, wherein the structures of the structured wear protection film are synchronous with the decoration at least in some partial areas.

13. The method according to claim 1 , wherein the displacement ink consists essentially of an ink composition selected from the group consisting of acrylate-based plastic, polyurethane-modified acrylate plastic, water, organic solvent or mixtures thereof.

14. The method according to claim 6 , wherein the digital template is generated based on a decoration, wherein the digital template provides complementary recesses and elevations corresponding to the haptic of the decoration.

Assignees

• Akzenta Paneele Profile Gmbh

Inventors

• Hannig Hans-Jürgen

Classifications

• B44C3/025 Primary

  Superimposing layers to produce ornamental relief structures · CPC title

• B41M5/0047

  by ink-jet printing · CPC title

• B41M3/00

  Printing processes to produce particular kinds of printed work, e.g. patterns ({printing apparatus or machines of special type or for particular purposes B41F17/00;} special designs or pictures per se B44F; manufacturing printed circuits using printing techniques H05K3/12 {; manufacturing organic semiconductor devices using printing techniques H10K71/13}) · CPC title

• B44C5/04 Primary

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