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Information medium

A medium and color material technology, applied in the field of information media, can solve problems such as odor, poor operating environment, and material safety issues, and achieve the effect of high gloss and high operating safety

Inactive Publication Date: 2005-03-23
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a printable layer of such an information medium, ultraviolet curable resin is generally used, but there is a problem that a printable layer composed of ultraviolet curable resin cannot obtain high-quality images compared with a sheet for inkjet recording
Specifically, in a printable layer composed of an ultraviolet curable resin, it is difficult to simultaneously satisfy chromaticity and lightness, which are elements of high image quality.
In addition, for improving image quality, there have been proposed methods that achieve the purpose by specifying the color tone of the surface (for example, refer to Patent Documents 2 and 3), but no specific method has been proposed, and the effect is not sufficient.
[0008] In addition, UV-curable resins are irritating to the skin, which poses a problem in terms of material safety.
In addition, UV-curable resins have handling problems such as storage in a dark room at room temperature, short life, odor, and deterioration of the operating environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0267] "Manufacturing of disc-shaped substrates"

[0268] Polycarbonate resin (resin trade name: Panlight AD5503, Teijin Co., Ltd.) is injected into an injection molding machine equipped with a disc stamper that has a predetermined groove shape at a predetermined track pitch. , and molded at a temperature of 115°C to produce a disc-shaped resin substrate made of polycarbonate. The obtained disc-shaped resin substrate had a diameter of 120 mm and a thickness of 1.2 mm, and spiral concave grooves (pregrooves) were formed on the surface thereof. The track pitch of the concave groove was 1.6 μm, the groove width was 500 nm, and the groove depth was 180 nm.

[0269] 2.5 g of a cyanine dye represented by the following structural formula was dissolved in 100 ml of 2,2,3,3-tetrafluoropropanol to prepare a coating solution for forming a recording layer. On the surface of the disc-shaped polycarbonate substrate obtained above, on which the pregroove is provided, the coating solution i...

Embodiment 2

[0303] A polycarbonate substrate (thickness: 0.6 mm, outer diameter: 120 mm, inner diameter: 15 mm, manufactured by Teijin Corporation, Product name "panlight AD5503"). Groove depth: 140nm, groove width: 310nm, groove pitch: 740nm.

[0304] A recording layer was prepared by dissolving 1 g of a dye obtained by mixing the following oxonol dye (A) and oxonol dye (B) in a ratio of 65:35 in 100 ml of 2,2,3,3-trifluoropropanol Forming coating liquid. While changing the rotation speed from 300 to 3000 rpm, the coating solution for forming a recording layer was applied on the grooved surface of the obtained substrate by a spin coating method and dried to form a recording layer. The layer thickness of the recording layer was measured by observing the cross section of the recording layer with SEM, and as a result, it was 150 nm in the groove and 110 nm in the land portion.

[0305] [chemical formula 2]

[0306] Pigment (A)

[0307]

[0308] Pigment (B)

[0309]

[0310] Then...

Embodiment 3

[0314] In the formation of the base layer in Example 1, in addition to using an ultraviolet curable ink (manufactured by Teikoku Ink Manufacturing Co., Ltd., adding yellow ink to White No. 3) on the smooth layer, the gloss at 45° on the smooth layer surface The degree reaches 35%, and adding pigment (blue), the a on the surface of the base layer * , b * Except setting -3.0 and 2.0 respectively, the information medium of Example 3 was produced similarly to Example 1.

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Abstract

An information medium comprising a printable layer that comprises at least an undercoat layer and a colorant-receiving layer, wherein the colorant-receiving layer comprises at least fine particles, a binder and a cross-linking agent; and the undercoat layer has a thickness of 15 mu m or more and an information medium comprising a printable layer that comprises at least an undercoat layer and a colorant-receiving layer, wherein the undercoat layer comprises at least a smoothing layer that controls glossiness of the printable layer and a chromaticity control layer that controls chromaticity of the printable layer.

Description

technical field [0001] The invention relates to an information medium having a printable layer on which text or photographs can be printed. Background technique [0002] As specifications of information media widely accepted in the market, there are CD (Compact Disc) and DVD (Digital Video Disc). [0003] CDs include a read-only CD-ROM, a write-once CD-R in which information can be recorded only once, and a rewritable CD-RW in which information can be rewritten multiple times. [0004] In a CD-ROM, a bit string is formed on a transparent substrate with a diameter of 120mm and a thickness of 1.2mm at a track pitch of 1.6μm, and has a recording capacity of about 650M bytes, and is passed at a rate of 1.2-1.4m / s Laser light with a wavelength of 770-790nm is irradiated at a linear velocity to reproduce information. [0005] On the other hand, similar to CDs, DVDs include DVD-ROM, DVD-R, and DVD-RW. [0006] The recording density of DVD-ROM is about 6-8 times that of CD. In te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41M5/52G11B7/247G11B7/2472G11B7/2478G11B7/253G11B7/2534G11B7/254G11B7/2542G11B7/258G11B7/259
CPCB41M5/52B41M5/5218G11B7/2478B41M2205/12B41M5/5227G11B7/259G11B7/2534G11B7/252B41M5/506G11B7/2542G11B7/254B41M5/5254G11B7/2472
Inventor 松叶口敏大濑隆义
Owner FUJIFILM CORP
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