Printing medium

• US 20030124273A1
• Filed: 11/19/2002
• Published: 07/03/2003
• Est. Priority Date: 01/03/2002
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jae-hwan, Ryu, Seung-min, Jung, Taek-Yong
• Granted Patent: US 6,855,383 B2
• Time in Patent Office: Days
• US Class Current: 428/32.1
• CPC Class Codes: B41M 5/504 Backcoats
• CPC Class Codes: B41M 5/506 Intermediate layers
• CPC Class Codes: B41M 5/508 Supports
• CPC Class Codes: B41M 5/5218 characterised by inorganic additives, e.g. pigments, clays
• CPC Class Codes: B41M 5/5227 characterised by organic non-macromolecular additives, e.g. UV-absorbers, plasticisers, surfactants
• CPC Class Codes: B41M 5/5236 characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
• CPC Class Codes: B41M 5/5245 characterised by the use of polymers containing cationic or anionic groups, e.g. mordants
• 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

A printing medium has a base layer, an ink receptive layer coated on the base layer, and an undercoating layer formed between the base layer and the ink receptive layer. The undercoating layer has a highly glossy resin property. Accordingly, regardless of a type of a material that is used in the base layer, the printing medium always offers rapid ink absorption, a vivid color image, excellent color fixation, a high water and light resistance, and high glossiness.

Claims

1. A printing medium, comprising:

a base layer;

an ink receptive layer made of an ink receptive material; and

an undercoating layer coated between the base layer and the ink receptive layer and formed of a coating material that contains a resin.

2. The printing medium of claim 1, wherein the coating material of the undercoating layer comprises a curing agent, and the resin of the coating material comprises:

one or any combination of an acrylic line, a polyurethane line, a vinyl line, and a polyolic line.

3. The printing medium of claim 1, wherein the undercoating layer has a thickness from 0.1 to 5 μ

m.

4. The printing medium of claim 1, the coating material of the undercoating layer comprises one of additives, and the additives comprises:

one or a compound of any combination of a whitening agent, a UV blocking agent, a fluorescent dye, a talc, a titanium oxide, an antioxidant, a lubricant, and a surface active agent.

5. The printing medium of claim 2, wherein the coating material of the undercoating layer comprises one of additives, and the additives comprise:

one or a compound of any combination of a whitening agent, a UV blocking agent, a fluorescent dye, a talc, a titanium oxide, an antioxidant, a lubricant, and a surface active agent.

6. The printing medium of claim 1, wherein the ink receptive material of the ink receptive layer comprises an aqueous polymer, and the aqueous polymer comprises:

one or a compound of any combination of a polyvinyl alcohol, a polyvinyl pyrrolydone, a cellulose, a gelatin, a polyethylene oxide, an acrylic polymer, a polyester, a polyurethane polymer and a copolymer in quaternary ammonium.

7. The printing medium of claim 2, wherein the ink receptive material of the ink receptive layer comprises an aqueous polymer, and the aqueous polymer comprises:

one or a compound of any combination of a polyvinyl alcohol, a polyvinyl pyrrolydone, a cellulose, a gelatin, a polyethylene oxide, an acrylic polymer, a polyester, a polyurethane polymer and a copolymer in quaternary ammonium.

8. The printing medium of claim 3, wherein the ink receptive material of the ink receptive layer comprises an aqueous polymer, and the aqueous polymer comprises:

one or a compound of any combination of a polyvinyl alcohol, a polyvinyl pyrrolydone, a cellulose, a gelatin, a polyethylene oxide, an acrylic polymer, a polyester, a polyurethane polymer and a copolymer in quaternary ammonium.

9. The printing medium of claim 1, wherein the ink receptive material of the ink receptive layer comprises:

an inorganic filler which is either a microporous silica sol or a microporous alumina sol, both having a size from 20 nm to 200 nm.

10. The printing medium of claim 2, wherein the ink receptive material of the ink receptive layer comprises:

an inorganic filler which is either a microporous silica sol or a microporous alumina sol, both having a size from 20 nm to 200 nm.

11. The printing medium of claim 9, wherein the ink receptive material of the ink receptive layer comprises a polymer, and an amount of the inorganic filler is more than 100% of a content of the polymer contained in the ink receptive layer.

12. The printing medium of claim 10, wherein the ink receptive material of the ink receptive layer comprises a polymer, and an amount of the inorganic filler is more than 100% of a content of the polymer contained in the ink receptive layer.

13. The printing medium of claim 1, wherein the ink receptive material of the ink receptive layer comprises an additive, and the additive comprises:

one or a compound of any combination of a crosslink agent, a fluorescent dye, a talc, a titane oxide, a light diffusion agent, a pH controller, an antioxidant, a defoaming agent, a leveling agent, a lubricant, an anti-curling agent, and a surface active agent.

14. The printing medium of claim 2, wherein the ink receptive material of the ink receptive layer comprises an additive, and the additive comprises:

one or a compound of any combination of a crosslink agent, a fluorescent dye, a talc, a titane oxide, a light diffusion agent, a pH controller, an antioxidant, a defoaming agent, a leveling agent, a lubricant, an anti-curling agent, and a surface active agent.

15. The printing medium of claim 13, wherein the crosslink agent comprises either one of an oxazoline, an isocyanate, an epoxide, an azilydine, a melanin-formaldehyde, a glyoxal, and a dialdehide, or a compound of any combination of the oxazoline, the isocyanate, the epoxide, the azilydine, the melanin-formaldehyde, the glyoxal, and the dialdehide.

16. The printing medium of claim 1, wherein the base layer comprises:

one of an one-sided art paper, a double-sided art paper, a cast coated paper, a photography paper, a synthetic paper, a polyester, a polycarbonate, a cellulose acetate, and a polyethylene terephthalrate.

17. The printing medium of claim 1, further comprising:

a bottom coating layer coated on a bottom surface of the base layer.

18. A method in a printing medium, comprising:

coating an undercoating layer on the base layer with a coating material containing a resin, a curing agent, and an additive; and

coating an ink receptive layer on the undercoating layer with an ink receptive material containing any combination of an additive, an aqueous polymer, and an inorganic filler.

19. The method of claim 18, further comprising:

coating an ink penetrating layer on the ink receptive layer as a protective layer.

20. The method of claim 18, further comprising:

coating a bottom coating layer on the base layer opposite to the undercoating layer as a protective layer.