Printed image

Patent metadata

Field	Value
Publication number	US-2016207344-A1
Application number	US-201414913596-A
Country	US
Kind code	A1
Filing date	Jul 25, 2014
Priority date	Aug 23, 2013
Publication date	Jul 21, 2016
Grant date	—

Abstract

The present invention relates to a printed image comprising flake-form effect pigments which has striking matt/gloss effects, to a process for the production of a printed image of this type, and to the use thereof, in particular in security printing.

First claim

1 . Printed image, which consists of at least two area units on a substrate, where each of the area units comprises flake-form effect pigments and a binder, characterised in that a first area unit comprises a first flake-form effect pigment, which is based on coated support flakes and has an outer layer comprising a non-metallic, inorganic material, and a second area unit comprises a second flake-form effect pigment, which is based on coated support flakes and has an outer layer comprising an organic surface modifier.

2 . Printed image according to claim 1 , characterised in that the first and second area unit are directly adjacent to one another.

3 . Printed image according to claim 1 , characterised in that the organic surface modifier comprises organofunctional siloxanes.

4 . Printed image according to claim 3 , characterised in that the organofunctional siloxanes contain fluoroalkyl groups and aminoalkyl groups.

5 . Printed image according to claim 1 , characterised in that the second flake-form effect pigment below the outer layer comprising an organic surface modifier has a layer comprising a non-metallic, inorganic material.

6 . Printed image according to claim 1 , characterised in that the first and second flake-form effect pigment differ merely through the outer layer comprising an organic surface modifier on the second flake-form effect pigment.

7 . Printed image according to claim 1 , characterised in that the first and second flake-form effect pigment are pearlescent pigments, interference pigments, metal-effect pigments or optically variable pigments.

8 . Printed image according to claim 7 , characterised in that the first and/or second flake-form effect pigments also have magnetic, electrically conductive or luminescent properties.

9 . Printed image according to claim 1 , characterised in that it has a laser marking.

10 . Printed image according to claim 9 , characterised in that the laser marking is located on the first and/or second area unit.

11 . Printed image according to claim 1 , characterised in that the substrate is paper, cardboard, wallpaper, tissue material, plastic, metal, ceramic, glass, wood, textile material or a composite material comprising two or more of the above-mentioned materials.

12 . Printed image according to claim 11 , characterised in that the paper is banknote paper.

13 . Process for the production of a printed image according to claim 1 , characterised in that a first printing ink, comprising a first flake-form effect pigment, which is based on a coated support flake and has an outer layer comprising a non-metallic, inorganic material, and a binder, is applied to a substrate with formation of a first area unit of a printed image and solidified, and in that a second printing ink, comprising a second flake-form effect pigment, which is based on a coated support flake and has an outer layer comprising an organic surface modifier, and a binder, is applied to a substrate with formation of a second area unit of a printed image and solidified.

14 . Process according to claim 13 , characterised in that the first and second area unit are applied to the substrate directly adjacent to one another.

15 . Process according to characterised in that the outer layer of the second effect pigment comprises organofunctional siloxanes.

16 . Process according to claim 15 , characterised in that the organofunctional siloxanes are siloxanes which contain fluoroalkyl groups and aminoalkyl groups.

17 . Process according to claim 13 , characterised in that the first and/or second printing ink is a screen printing ink, a gravure printing ink, a flexographic printing ink or an intaglio printing ink.

18 . Process according to claim 13 , characterised in that the first and/or second area unit are provided with a laser marking.

19 . Use of a printed image according to claim 1 as decoration element, as functional element or as security feature on a product.

20 . Use according to claim 19 , characterised in that the product is banknotes, cheques, credit cards, shares, passports, identity documents, driving licenses, entry tickets, revenue stamps, labels, packaging materials or seals.

Assignees

• Merck Patent Gmbh

Inventors

• Klein Sylke
• Montag Heidemarie

Classifications

• C09D11/037

  characterised by the pigment · CPC title

• B42D25/373

  Metallic materials · CPC title

• B42D25/364

  Liquid crystals · CPC title

• B42D25/29 Primary

  Securities; Bank notes · CPC title

• B41M5/26

  Thermography (B41M5/20, B41M5/24 take precedence); {Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used (B23K takes precedence; thermographic or photothermographic systems using noble metal compounds G03C1/494)} · CPC title