Multilayer articles containing organic layers

Patent metadata

Field	Value
Publication number	US-12285779-B2
Application number	US-202016735329-A
Country	US
Kind code	B2
Filing date	Jan 6, 2020
Priority date	Jan 7, 2019
Publication date	Apr 29, 2025
Grant date	Apr 29, 2025

Abstract

An article includes a first organic layer and a second organic layer each with an interior embossed surface; and an embossed reflector layer adjacent to the interior embossed surface of the first organic layer and adjacent to the interior embossed surface of the second organic layer. A method of making an article is also disclosed.

First claim

What is claimed is:

1. A method of making an article, comprising:
coating a first organic layer onto a substrate, wherein the first organic layer includes an organic material and a colorant;
depositing a reflector layer onto the first organic layer;
embossing both of the reflector layer and the first organic layer, and
coating a second organic layer onto the embossed reflector layer using a liquid coating process, wherein the liquid coating process is chosen from slot-die, inkjet, curtain coating, metering rod, myer bar coating, flexo, offset printing, slot-bead, slide bead, slot curtain and slide curtain, wherein the liquid coating process comprises coating a coating composition in liquid form and wherein the liquid coating process does not include vaporization of the liquid coating composition;
wherein the article is a diffractive pigment.

2. The method of claim 1 , wherein the second organic layer includes a colorant, and the first organic layer and the second organic layer are a same color.

3. The method of claim 1 , wherein the first organic layer and the second organic layer are different colors.

4. The method of claim 1 , wherein the first organic layer and the second organic layer include a same organic material.

5. The method of claim 1 , wherein the first organic layer and the second organic layer include a different organic material.

6. The method of claim 1 , further comprising a second absorber layer adjacent to the second organic layer.

7. The method of claim 1 , wherein the liquid coating process is self-leveling.

8. The method of claim 1 , wherein depositing the reflector layer uses a vacuum deposition process.

9. The method of claim 1 , wherein an exterior surface of the second organic layer is substantially planar.

10. The method of claim 1 , wherein the substrate includes a release layer.

11. The method of claim 10 , wherein the release layer is a polyvinyl alcohol.

12. The method of claim 10 , further comprising releasing the substrate.

13. The method of claim 12 , wherein the reflector layer is on a first side of the first organic layer, the article further comprising a first absorber layer adjacent to a second side of the first organic layer, the second side of the first organic layer being opposite the first side of the first organic layer.

14. The method of claim 1 , wherein the substrate further includes an embossable layer.

15. The method of claim 1 , further comprising releasing the substrate from the article.

16. The method of claim 15 , wherein the reflector layer is adjacent to a first surface of the first organic layer and a first surface of the second organic layer, the article further comprising a first absorber layer and a second absorber layer, the first absorber layer being adjacent to a second surface of the first organic layer that is opposite the first surface of the first organic layer and the second absorber layer being adjacent to a second surface of the second organic layer that is opposite the first surface of the second organic layer.

Assignees

• Viavi Solutions Inc

Inventors

• Argoitia Alberto
• Liang Kangning
• Seydel Johannes P

Classifications

• C09C2210/40

  Embossed layers · CPC title

• C09C1/0015

  Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings · CPC title

• G02B1/12

  by surface treatment, e.g. by irradiation · CPC title

• G02B5/287

  comprising at least one layer of organic material · CPC title

• B05D7/54

  No clear coat specified · CPC title