Ink receptive article

• US 8,003,176 B2
• Filed: 10/04/2006
• Issued: 08/23/2011
• Est. Priority Date: 10/04/2006
• Status: Expired due to Fees

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Bacon, Chester A. Jr., Haas, Christopher K., Pellerite, Mark J., Ylitalo, Caroline M., Jonza, James M.
• Primary Examiner(s): Shewareged; Betelhem
• Application Number:
  US11/538,611
• Publication Number:
  US 20080085385A1
• Time in Patent Office: 1,784 Days
• Field of Search: 428/32.13, 428/32.26, 428/32.34, 428/32.38
• US Class Current: 428/32.13
• CPC Class Codes: B41M 5/508 Supports
• CPC Class Codes: B41M 5/52 Macromolecular coatings
• CPC Class Codes: B41M 5/5218 characterised by inorganic additives, e.g. pigments, clays
• CPC Class Codes: B41M 5/5254 characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• CPC Class Codes: B41M 5/5272 Polyesters; Polycarbonates
• CPC Class Codes: B41M 5/5281 Polyurethanes or polyureas

Abstract

An ink receptive article including a substrate having applied on at least a portion thereof a layer of an ink receptive coating, wherein the ink receptive coating layer includes a cross-linked polymer and an ink absorbing polymer, wherein the ink absorbing polymer has a solubility parameter of equal to or less than 9 (cal/cm³)^1/2.

Claims

1. An ink receptive article comprising a substrate having applied on at least a portion thereof a layer of an ink receptive coating, wherein the ink receptive coating layer comprises a matrix of a crosslinked polyurethane polymer and a disperse phase within the matrix of an ink absorbing polymer, wherein the ink absorbing polymer has a solubility parameter of equal to or less than 9 (cal/cm³)^1/2 and is a styrenic block copolymer.

2. The ink receptive article of claim 1, wherein the substrate is selected from an oriented foam layer, a multilayer optical film and a vapor coated film.

3. A security document comprising the ink receptive article of claim 1.

4. The ink receptive article of claim 1, wherein the ink receptive coating layer further comprises an antiblocking agent, and wherein the antiblocking agent comprises polymer beads having a diameter equal to or greater than the dry thickness of the ink receptive coating layer.

5. The ink receptive article of claim 1, wherein the styrenic block copolymer is selected from the group consisting of styrene-isoprene-styrene block copolymers, styrene-butadiene-styrene block copolymers, and styrene-ethylene-butylene-styrene copolymers.

6. The ink receptive article of claim 1, wherein the styrenic block copolymer is a styrene-isoprene-styrene block copolymer.

7. The ink receptive article of claim 1, wherein the ink absorbing polymer comprises at least 5% and up to 48% of the total polymer content of the ink receptive coating layer.

8. The ink receptive article of claim 1, wherein the ink absorbing polymer comprises between 15% to 35% of the total polymer content of the ink receptive coating layer.

9. The ink receptive article of claim 1, wherein the ink receptive coating layer further comprises 5% to 20% by weight of an ink absorber selected from the group consisting of metal oxides and silica.

10. The ink receptive article of claim 9, wherein the ink absorber comprises silica.

11. The ink receptive article of claim 1, wherein the ink receptive coating layer further comprises from 2% to 20% by weight of an antiblocking agent selected from glass microspheres, crosslinked polymer beads, and porous silica beads.

12. The ink receptive article of claim 1, wherein the ink receptive coating layer further comprises from 1% to 50% by weight of an antistatic agent.

13. The ink receptive article of claim 12, wherein the antistatic agent is a quaternary ammonium compound.

14. The ink receptive article of claim 1, further comprising an antistatic layer adjacent the ink receptive coating layer.

15. The ink receptive article of claim 1, wherein the ink receptive coating layer has a dry thickness of 1 μ

m to 50 μ

m.