Cover film for sublimation transfer type hard copy

• US 4,599,259 A
• Filed: 06/22/1984
• Issued: 07/08/1986
• Est. Priority Date: 10/25/1982
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Abe, Tetsuya, Fujiwara, Yoshio, Kobayashi, Naotake, Shinohara, Satoru
• Primary Examiner(s): Hess, Bruce H.
• Application Number:
  US06/624,683
• Time in Patent Office: 746 Days
• Field of Search: 8/470, 8/471, 428/195, 428/203, 428/204, 428/207, 428/212, 428/220, 428/328, 428/913, 428/914, 428/918, 428/201, 428/211, 428/336, 428/413, 428/475.5, 428/479.6, 428/480, 428/481 , 428/514, 428/522, 428/536, 428/690, 428/704
• US Class Current: 428/204
• CPC Class Codes: B41M 7/0054 using protective coatings or film forming compositions cured by thermal means, e.g. infrared radiation, heat
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10S 428/914 Transfer or decalcomania
• CPC Class Codes: Y10T 428/24851 Intermediate layer is discontinuous or differential
• CPC Class Codes: Y10T 428/24868 Translucent outer layer
• CPC Class Codes: Y10T 428/24876 Intermediate layer contains particulate material [e.g., pigment, etc.]
• CPC Class Codes: Y10T 428/24901 including coloring matter
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31511 Of epoxy ether
• CPC Class Codes: Y10T 428/31739 Nylon type
• CPC Class Codes: Y10T 428/31783 Paper or wood
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/3179 Next to cellulosic
• CPC Class Codes: Y10T 428/31906 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31935 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31986 Regenerated or modified

Abstract

A cover film for a sublimation transfer type hard copy of the present invention is a cover film which is melt bonded by heat on the surface of a hard copy printing paper in which a picture image is formed on the surface thereof by selectively transferring a sublimation dye. The cover film includes a resinous layer containing a metal compound selected from Al, Mg, Ca and Sn. This cover film is capable of producing magenta color of high color saturation by arbitrarily controlling the coloring of reddish dye to be shifted to the blue side and can also protect the surface of the printing paper.

Furthermore, the present invention relates to a cover film which is melt bonded by heat on the surface of a hard copy printing paper in which a picture image is formed on the surface thereof by selectively transferring a sublimation dye. This cover film includes a layer mainly formed of a phosphor whitener and a resin to increase a whiteness degree of a portion which is not colored so that a picture image is made clear and which can prevent the color of dye from being faded.

Claims

1. A color hard copy print comprising:

a printing substrate,

sublimation dyes of three primary colors selectively formed on one surface of said printing substrate by thermal transfer of said dyes, and

a cover film formed on said one surface of said substrate by melt bonding thereon, said cover film including a resinous layer containing an organic compound of a metal selected from the group consisting of Al, Mg, Ca, and Sn.

2. A hard copy print according to claim 1 wherein said resinous layer contains a phosphor whitener.

3. A hard copy print according to claim 2, characterized in that said phosphor whitener is selected from 4, 4'"'"'-bis 4, 6-di substituted - 1, 3, 5 - triadinyl sulfonic acid, α

, β

-bis (benzoxyzoryl) ethylene compound, alkoxy naphthalene acid-N-substituted imide compound, anthracene derivative, stilbene derivative, quinolone derivative, coumarin derivative, imidazol derivative and oxazol derivative.

4. A hard copy print according to claim 2, characterized in that amount of said phosphor whitener is selected in a range from 0.1 to 5 PHR.

5. A hard copy print according to claim 1, characterized in that said resinous layer of said cover film is selected from polyester resin, epoxy resin, acetate cellulose resin, nylon resin and polyvinyl pyrrolidone resin.

6. A hard copy print according to claim 1, characterized in that said metal compound is selected from organic acid metal salt, metal alcoholate, chelate compound of acetyl acetonate with metal and aluminum oxide acylate compound.

7. A hard copy print according to claim 1, characterized in that amount of said metal compound is selected to be in a range from 0.1 to 30 PHR.

8. A hard copy print according to claim 1, characterized in that said cover film has a thickness selected in a range from 1 to 20 μ

m.