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Optical information recording medium, method for visible information recording, method for use of mixture and mixture

A technology for optical information and recording media, which is applied in the direction of optical recording media, optical recording/reproduction, data recording, etc., can solve the problems of insufficient light durability and/or thermal durability, and achieve excellent light durability and The effect of thermal durability

Inactive Publication Date: 2008-12-10
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] On the other hand, from a technical point of view, when using a colored substrate, there arises a problem in that output control of the laser beam is necessary compared to the case when using a transparent substrate.
[0009] Conventional optical discs in which a visible information recording layer based on the use of a dye is formed also include additional problems such that after forming a label, light durability and / or thermal durability become insufficient

Method used

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  • Optical information recording medium, method for visible information recording, method for use of mixture and mixture
  • Optical information recording medium, method for visible information recording, method for use of mixture and mixture
  • Optical information recording medium, method for visible information recording, method for use of mixture and mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0364] The optical information recording medium of Example 1 is a DVD-R type optical information recording medium obtained by bonding two discs together. A method for manufacturing the optical information recording medium of Example 1 will be explained below.

[0365] Using polycarbonate resin, a first substrate 16 having a thickness of 0.6 mm and a diameter of 120 mm in which helical (helical) grooves (depth: 130 nm, width: 300 nm, track pitch: 0.74 μm) was formed was formed by injection molding.

[0366] Then, 1.5 g of an oxonol dye represented by the following general formula (ch-63) and 1.5 g of an oxonol dye represented by the following general formula (ch-64) were dissolved in 100 ml of 2,2,3, 3,-Tetrafluoro-1-propanol to prepare the coating solution. The coating liquid was applied onto the surface of the first substrate 16 on which the pre-groove 40 was formed by a spin coating method, whereby the data recording layer 18 was formed.

[0367]

[0368]

[0369] Su...

Embodiment 2 to 4

[0375]Among the optical information recording media according to Examples 2 to 4, a first optical information recording medium 10A was prepared in substantially the same manner as in Example 1 except that, as shown in FIG. The content of metal atoms contained in the coating solution for forming the visible information recording layer used for the visible information recording layer 24 of the visible information recording medium portion 14 of Example 1.

[0376] (contrast evaluation)

[0377] On the optical information recording media manufactured according to the first to fourth embodiments, recording was performed as follows.

[0378] Using the recording apparatus disclosed in Japanese Laid-Open Patent Publication 2002-203321, that is, a recording apparatus having a laser pickup emitting a laser beam 38 and a rotation mechanism for rotating an optical information recording medium (using a semiconductor laser having a wavelength of 660 nm as the laser beam source), based on ...

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Abstract

This invention provides an optical information recording medium (10A) that can record information by laser beam (38) irradiation. The optical information recording medium (10A) comprises a visible information recording layer (24) on which visible information is to be recorded. The visible information recording layer (24) contains a coloring matter, and at least one metal atom selected from the group consisting of Na, Mg, K, and Ca. The coloring matter is at least one material selected from the group consisting of oxonol coloring matter, cyanine coloring matter, azo coloring matter, phthalocyanine coloring matter, and pyrromethene coloring matter.

Description

technical field [0001] The present invention relates to an optical information recording medium having a visible information recording layer capable of recording visible information, a method for preparing (manufacturing) the optical information recording medium, and for recording visible information on the optical information recording medium A visible information recording method (method for visual information recording), a method of using a mixture forming the visible information recording layer (application of the mixture), and the mixture. Background technique [0002] Optical information recording media (optical discs) on which recording can be performed only once using a laser beam have hitherto been known. Such optical discs include write-once CDs (so-called CD-Rs) and write-once digital versatile discs (so-called DVD-Rs). [0003] Optical discs include those in which a label can be adhered to the surface, said label being placed on the side opposite to the recordin...

Claims

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Application Information

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IPC IPC(8): G11B7/24G11B7/254G11B7/257G11B7/2467
Inventor 今村清文柴田路宏新居一巳
Owner FUJIFILM CORP
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