Leather with skin texture having an identification code

Patent metadata

Field	Value
Publication number	US-11423274-B2
Application number	US-201917416696-A
Country	US
Kind code	B2
Filing date	Dec 13, 2019
Priority date	Dec 19, 2018
Publication date	Aug 23, 2022
Grant date	Aug 23, 2022

Abstract

A natural leather embossed with a skin texture for authenticating said natural leather with an identification code comprising the steps: —applying a protective top-coat on said natural leather; and —selecting an identification code and converting said identification code to a plurality of locations; and —forming a skin texture with higher up elements and lower located elements; arranged according said plurality of locations; and —embossing said skin texture in said protective top-coat.

First claim

The invention claimed is:

1. An authentication method for embossed natural leather wherein the natural leather is embossed by a process comprising:
a) applying a protective top-coat on natural leather; and
b) pressing against the protective top-coat an embossing element, the embossing element comprising a relief having a plurality of lower located elements and higher located elements to form in the protective top-coat an artificial skin texture, the artificial skin texture having an embedded identification code; wherein the higher located elements comprise line structures and the lower located elements comprise segments confined by one or more of the line structures; and
wherein the authentication method comprises:
a decoding step comprising a step of determining the embedded identification code by determining mutual locations of the embossed formation by the lower located elements and/or higher elements in the protective top-coat; and
converting the determined mutual locations to a plurality of characters for authenticating the embossed natural leather;
wherein the mutual locations of the embossed formation by the lower located segments is used for the determination of the embedded identification code.

2. The authentication method according to claim 1 wherein the conversion of the determined mutual locations to a plurality of characters is performed by a cryptographic key.

3. The authentication method according to claim 2 wherein the higher located elements comprise additional point structures and wherein the mutual locations of embossed pores by the higher located point structures is used for the determination of the embedded identification code.

4. The authentication method according to claim 2 wherein ratio between the mutual surfaces of the embossed formation by the lower located segments is used for the determination of the embedded identification code.

5. The authentication method according to claim 2 wherein the shapes of the embossed formation by the lower located segments are used for the determination of the embedded identification code.

6. The authentication method according to claim 2 wherein the depth of the embossed formation by the higher located elements is used for the determination of the embedded identification code.

7. The authentication method according to claim 2 wherein the determination of the mutual locations comprises:
a) capturing a digital image of the embossed natural leather by a camera;
b) digital filtering from the digital image the embossed formation; and
c) determining from the filtered digital image the mutual locations.

8. The authentication method according to claim 1 wherein the higher located elements comprise additional point structures and wherein mutual locations of embossed pores by the higher located point structures are used for the determination of the embedded identification code.

9. The authentication method according to claim 8 wherein the higher located elements comprise additional point structures and wherein the mutual locations of embossed pores by the higher located point structures is used for the determination of the embedded identification code.

10. The authentication method according to claim 8 wherein ratio between the mutual surfaces of the embossed formation by the lower located segments is used for the determination of the embedded identification code.

11. The authentication method according to claim 8 wherein the shapes of the embossed formation by the lower located segments are used for the determination of the embedded identification code.

12. The authentication method according to claim 8 wherein the depth of the embossed formation by the higher located elements is used for the determination of the embedded identification code.

13. The authentication method according to claim 8 wherein the determination of the mutual locations comprises:
a) capturing a digital image of the embossed natural leather by a camera;
b) digital filtering from the digital image the embossed formation; and
c) determining from the filtered digital image the mutual locations.

14. The authentication method according to claim 1 wherein the ratio between the mutual surfaces of the embossed formation by the lower located segments is used for the determination of the embedded identification code.

15. The authentication method according to claim 1 wherein the shapes of the embossed formation by the lower located segments are used for the determination of the embedded identification code.

16. The authentication method according to claim 1 wherein the depth of the embossed formation by the higher located elements is used for the determination of the embedded identification code.

17. The authentication method according to claim 1 wherein the determination of the mutual locations comprises:
a) capturing a digital image of the embossed natural leather by a camera;
b) digital filtering from the digital image the embossed formation; and
c) determining from the filtered digital image the mutual locations.

Assignees

• Agfa Nv

Inventors

• Van Garsse Joris

Classifications

• C14B1/56

  Ornamenting, producing designs, embossing (pressing or rolling in general C14B1/30; producing design on furs C14B15/12) · CPC title

• C14C11/003 Primary

  using macromolecular compounds · CPC title

• C14C11/006

  using polymeric products of isocyanates (or isothiocyanates) with compounds having active hydrogen · CPC title

• G06K19/06037

  multi-dimensional coding · CPC title

• C09D175/04

  Polyurethanes · CPC title