Flexible packaging material

Patent metadata

Field	Value
Publication number	US-10213950-B2
Application number	US-201415526308-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Nov 12, 2014
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

Flexible packaging materials with electrophotographically printed images or information, and processes for preparing such flexible packaging materials are disclosed.

First claim

The invention claimed is:

1. A flexible packaging material, comprising:
a flexible substrate comprising a first surface;
an electrophotographic ink composition printed on the first surface of the flexible substrate, the printed electrophotographic ink composition comprising a polymer resin comprising a copolymer of an alkylene monomer and a monomer selected from acrylic acid and methacrylic acid;
a base material; and
a thermally activatable laminating layer extruded onto the base material and thermally laminated to the first surface of the flexible substrate printed with the electrophotographic ink composition.

2. The flexible packaging material of claim 1 , wherein the thermally activatable laminating layer comprises a copolymer of an alkylene monomer and a monomer selected from acrylic acid and methacrylic acid.

3. The flexible packaging material of claim 1 , wherein the base material comprises a metallic foil or a metallized substrate.

4. The flexible packaging material of claim 1 , wherein the flexible substrate comprises a film of thermoplastics material.

5. The flexible packaging material of claim 1 , wherein the flexible substrate comprises a film of biaxially oriented polypropylene or poly(ethylene) terephthalate.

6. The flexible packaging material of claim 1 , wherein the thermally activatable laminating layer is from 2 to 50 μm in thickness.

7. The flexible packaging material of claim 1 , further comprising a sealant layer disposed on a surface of the base material other than the surface on which the thermally activatable laminating layer is disposed.

8. A process for preparing the flexible packaging material of claim 1 , comprising:
printing the liquid electrophotographic ink composition onto the first surface of the flexible substrate;
extruding a thermally activatable laminating material onto a first surface of the base material to form the thermally activatable laminating layer disposed on the first surface of the flexible material; and
contacting under conditions of heat and/or pressure the thermally activatable laminating layer with the first surface of the flexible substrate comprising the printed electrophotographic ink composition.

9. The process for preparing a flexible packaging material of claim 8 , wherein the base material comprises a metallic foil or a metallized substrate.

10. The process for preparing a flexible packaging material of claim 8 , further comprising depositing a sealant material onto the flexible base material to form a sealant layer disposed on a surface of the flexible base material other than the surface on which the thermally activatable laminating layer is disposed.

11. The process for preparing a flexible packaging material of claim 8 , wherein the thermally activatable laminating layer is contacted with the first surface of the flexible substrate comprising the printed electrophotographic ink composition at a temperature of less than 150° C.

12. The process for preparing a flexible packaging material of claim 8 , wherein the thermally activatable laminating material comprises a copolymer of an alkylene monomer and a monomer selected from acrylic acid and methacrylic acid.

13. The process for preparing a flexible packaging material of claim 8 , further comprising cooling the material obtained from the step of contacting the thermally activatable laminating layer with the first surface of the flexible substrate comprising the printed electrophotographic ink composition, thereby producing the flexible packaging material.

14. A process for preparing the flexible packaging material of claim 1 , comprising:
providing a first flexible material comprising the flexible substrate and the electrophotographic ink composition printed onto the first surface of the substrate;
providing a second flexible material comprising the base material with the thermally activatable laminating layer extruded onto a first surface of the base material; and
contacting under conditions of heat and/or pressure the thermally activatable laminating layer with the first surface of the flexible substrate comprising the printed electrophotographic ink composition.

15. A flexible packaging material made by the process of claim 8 .

16. A flexible packaging material made by the process of claim 14 .

Assignees

• Hp Indigo Bv

Inventors

• Salant Asaf
• Idan David
• Slivniak Raia
• Teishev Albert
• Levi Amnon

Classifications

• B32B27/32

  comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} · CPC title

• B32B2307/7265

  Non-permeable · CPC title

• B32B15/085

  comprising polyolefins · CPC title

• B29C47/065 Primary

  Operations & Transport · mapped topic

• B32B2307/7248

  Odour barrier · CPC title