High gloss photo media and method of making same

Patent metadata

Field	Value
Publication number	US-9731535-B2
Application number	US-201114354577-A
Country	US
Kind code	B2
Filing date	Oct 27, 2011
Priority date	Oct 27, 2011
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

A high gloss photo media that has a gloss at 20 degrees equal to or greater than 40% includes a photo media substrate that includes a gloss-enhancement film on a front side of a photo base material. A curl control material is on a back side of the photo base material opposite the front side. The gloss-enhancement film being a multilayer that includes an adherent layer and a layer of one of a polyester composition and a polypropylene composition. A thickness of the gloss-enhancement film is at least 20 microns. The high gloss photo media further includes an image receiving layer on the gloss-enhancement film.

First claim

What is claimed is:

1. A high gloss photo media comprising:
a photo media substrate comprising a photo base material having a front side and a back side opposite the front side; a layer of a curl control material on the back side of the photo base material; and a gloss-enhancement film on the front side of the photo base material, a thickness of the gloss-enhancement film being at least 20 microns, the gloss-enhancement film being a multilayer comprising an adherent layer and a layer of one of a polyester composition and a polypropylene composition; and
an image receiving layer on the gloss-enhancement film, the photo media having a gloss at 20 degrees that is equal to or greater than 40%.

2. The photo media of claim 1 , wherein the polyester composition comprises a layer of polyethylene terephthalate.

3. The photo media of claim 1 , wherein the polypropylene composition comprises adjacent layers of polypropylene and poly(ethylene vinyl acetate).

4. The photo media of claim 1 , wherein the adherent layer comprises one of a thermal adhesive and a thermoplastic polymer, an amount by coat weight of the adherent being about 10 grams per square meter (gsm) to 25 gsm.

5. The photo media of claim 1 , wherein the adherent layer comprises polyethylene, casein, sodium silicate, starch, natural latex, synthetic latex, a starch-based adhesive, an acrylic copolymer adhesive, a pressure-sensitive adhesive, or a combination of two or more thereof, the layer of a respective one of the polyester composition and the polypropylene composition having a thickness with a range of 10 microns to 42 microns.

6. The photo media of claim 1 , wherein the polyester composition is a layer of polyethylene terephthalate (PET), the polypropylene composition being adjacent layers of polypropylene and poly(ethylene vinyl acetate) (PP and EVA), the adherent layer being a layer of melted polyethylene granules between the front side of the photo base material and a respective one of the PET layer and the PP and EVA layers, an amount of the respective one of the PET layer and the PP and EVA layers to an amount of the adherent being a ratio of one of 4 to 1, 3 to 2, 3 to 5 and 1 to about 2.

7. The photo media of claim 1 , wherein an amount of the curl control material on the back side of the photo base material is 1.5 to 3 times the amount of the gloss-enhancement film on the front side of the photo base material.

8. The photo media of claim 1 , wherein the photo media substrate has a percent gloss at 20 degrees that is equal to or greater than 75%, and wherein each of the photo media substrate and the photo media has a distinctness of image (DOI) that is equal to or greater than 3.6 mm −1 .

9. A high gloss photo media comprising:
a photo media substrate comprising:
a layer of a polymer composition on a back side of a photo base material to control curl; and
a gloss-enhancement film comprising an adherent layer and either a layer of polyethylene terephthalate (PET) or layers of polypropylene and poly(ethylene vinyl acetate) (PP and EVA) on a front side of the photo base material to enhance gloss of the photo media substrate, an amount of the curl control polymer composition being from 1.5 to 3 times an amount of the gloss-enhancement film, a thickness of the gloss-enhancement film being at least 28 microns; and

an image receiving layer on the gloss-enhancement film, the photo media having a gloss at 20 degrees that is equal to or greater than 40%.

10. The photo media of claim 9 , wherein the adherent layer comprises one of a thermal adhesive and a thermoplastic polymer, an amount of the PET layer or the PP and EVA layers to an amount of the adherent layer being a ratio of one of 4 to 1, 3 to 2, 3 to 5 and 1 to about 2.

11. A method of preparing high gloss photo media, the method comprising:
applying a curl control composition on a first side of a photo base material;
applying a gloss-enhancement film to a second side of the photo base material, the gloss-enhancement film comprising an adherent layer and a layer of either a polyester composition or a polypropylene composition that are one of laminated, extruded and extrusion laminated to the photo base material, a thickness of the gloss-enhancement film being at least 20 microns; and
applying an image receiving layer on the gloss-enhancement film, the photo media having a gloss at 20 degrees equal to or greater than 40% and a distinctness of image that is equal to or greater than 3.6 mm −1 .

12. The method of claim 11 , wherein applying a gloss-enhancement film comprises:
melting thermoplastic granules to form the adherent layer;
combining the adherent layer and the layer of a respective one of the polyester composition and the polypropylene composition on the second side of the photo base material at a laminating nip, the adherent layer being directly adjacent to the second side; and
extrusion laminating the adherent layer and the respective composition layer with the photo base material.

13. The method of claim 11 , wherein applying a gloss-enhancement film comprises:
coating the second side of the photo base material or one side of the layer of a respective one of the polyester composition and the polypropylene composition with the layer of the adherent;
combining the respective composition layer with the second side of the photo base material at a laminating nip, the adherent being between the respective composition layer and the photo base material; and
wet laminating the respective composition layer, the adherent and the photo base material together.

14. The method of claim 11 , wherein applying a gloss-enhancement film comprises extruding the layer of a respective one of the polyester composition and the polypropylene composition and the adherent layer to the second side of the photo base material, an amount of the adherent layer being within a range of 0.5 grams per square meter (gsm) to 25 gsm.

15. The method of claim 11 , wherein an amount of the curl control composition is 1.5 to 3 times an amount of the gloss-enhancement film, a thickness of the layer of a respective one of the polyester composition and the polypropylene composition being within a range of 10 microns to 42 microns, the image receiving layer having a coat weight within a range of 25 grams per meter (gsm) to 32 gsm.

Assignees

• Fu Xulong
• Alfekri Dheya M
• Selensky Ronald J
• Hewlett Packard Development Co Lp

Inventors

• Fu Xulong
• Alfekri Dheya M
• Selensky Ronald J

Classifications

• G03C1/81

  characterised by anticoiling means · CPC title

• B32B27/10

  of paper or cardboard · CPC title

• B41M5/506 Primary

  Intermediate layers · CPC title

• B41M7/0027

  using protective coatings or layers by lamination or by fusion of the coatings or layers · CPC title

• G03C1/93

  Macromolecular substances therefor · CPC title