Information medium

A medium and color material technology, applied in the field of information media, can solve problems such as poor operating environment, odor, and inability to obtain sufficient absorption capacity, and achieve the effect of less infiltration and high operating safety

Inactive Publication Date: 2005-03-30
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
[0008] In addition, if a printable layer composed of ultraviolet curable resin is formed in a thicker thickness, it is necessary to increase the energy supplied during ultraviolet curing, and as a result, there may be problems with disc warping and surface jitter.
Therefore, it is necessary to reduce the layer thickness of the printable layer. As a result, the absorption capacity for completely absorbing ink drops cannot be obtained sufficiently, and the bleeding stability of the printed image becomes a problem.
[0009] 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 operational problems such as storage in a dark room at room temperature, short lifespan, odor, and deterioration of the operating environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0253] "Manufacturing of disc-shaped substrates"

[0254] 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.

[0255] 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

[0288] 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.

[0289] 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.

[0290] [chemical formula 2]

[0291] Pigment (A)

[0292]

[0293] Pigment (B)

[0294]

[0295] Then...

Embodiment 3

[0299] In the formation of the color material receiving layer in Example 1, the information medium of Example 3 was produced in the same manner as in Example 1 except that the layer thickness of the color material receiving layer was set to 45 μm.

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Abstract

An information medium has a printable layer comprising at least a base layer and a color material receiving layer, the color material receiving layer contains at least particles, a binding agent, a crosslinking agent and a mordant, and the layer thickness of the color material receiving layer is between 30 μm or more and 60 μm or less. According to the present invention, it is possible to provide an information medium having a printable layer with high handling safety, less bleeding, and capable of printing high-quality images.

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 & AuthorityApplications(China)
IPC IPC(8): B41J2/01B41M5/00B41M5/50B41M5/52G11B7/24G11B7/24094G11B7/24097G11B7/254G11B7/257G11B7/26
CPCG11B7/254B41M5/5218B41M5/52G11B7/2478B41M5/5227G11B7/259G11B7/2534G11B7/252B41M5/5254G11B7/2472G11B2007/24612
Inventor松叶口敏大濑隆义
OwnerFUJIFILM CORP