Information recording medium

[Detailed Description of the Invention]

[Industrial Application] The present invention relates information to the manufacturing method of the information recording medium recorded as a concavo-convex pattern of a slot and the shape of a pit. [Description of the Prior Art] Although it is in an information recording medium variously, an example of the replica process of optical information recording media, such as CD, is described. A resin material is made to transfer the slot on La Stampa, and a concavo-convex pit-like pattern by the La Stampa Cease injection molding or 2P fabrication etc. which is a basis of an information recording medium first. The things main as the above-mentioned resin material are PClPMMA(s) etc. A reflection film is attached to the side (it carries out the record side henceforth) on which the slot on the information recording medium and the concavo-convex pit-like pattern which were obtained by injection molding or 2P fabrication were recorded by vapor deposition and the sputtering method. Generally A1 is used as a reflection film material. A reflection film does not have intensity, and since it is easy to oxidize, it needs to be protected. as the method of protection, on what pasted the transparent disk of one more sheet together to the record side, and a reflection film, a spinner is used and the resin material of ultraviolet curing nature is applied -- the method of irradiating with and stiffening ultraviolet rays is known well. [Problem(s) to be Solved by the Invention] In the above-mentioned conventional example, after forming the reflection film of an information recording medium by vapor deposition or sputtering, an information recording medium is picked out from a device. In order to perform a protection coat, it sets to a spinner, and an information recording medium is picked out from a device after a protection coat application, and it is made to harden with an exposure machine. Since mechanical wounding by handling is done since the receipts and payments to the device of an information recording medium are performed even on a protection coat from a reflection film like the above-mentioned repeatedly, or not only the fall of the product yield by garbage adhesion etc. but a man day starts, it becomes a cost rise. It is very expensive although there is also machinery formed into the automatic line from a reflection film to protection coat hardening. [Means for Solving the Problem] In an information recording medium recorded considering information as a concavo-convex pattern of a slot and the shape of a pit, information storage intermediation of the present invention is formed of a transparent resin medium which had information transferred from La Stampa, and a reflector using resin in which metal powder of Au and an AgXA1 grade was made to mix. [Example] Hereinafter, the example of the present invention is described based on a drawing. (Example 1) Drawing 1 is a schematic diagram of Example 1 of the present invention. The information recording medium of the present invention is formed of reflector 2 which is from the resin in which the metal powder of high reflectance was made to mix on the record side of transparent resin medium 1 which used transparent resin material first and was recorded considering information as a concavo-convex pattern of a slot and the shape of a pit. Hereinafter, a formation method is explained. Drawing 2 is a part of forming metallic mold of an injection-molding device. Information is already recorded on La Stampa 3 stored in the metallic mold with the concavo-convex pattern. The side (back) which is not a record side of La Stampa is Flat. Next, the fused transparent resin is ejected in a model and transparent resin medium 1 is formed. PdlPMMA, an epoxy resin, etc. can be considered as above-mentioned transparent resin material. Like the above-mentioned, set transparent resin medium 1 which were formed by carrying out in another injection mold as shown in Drawing 3, and the resin in which the metal powder of high reflectance was made to mix is made to eject in a metallic mold, and reflector 2 is formed. As a metal made to mix into reflector 2, resin of a low melting point may be used for reflector 2 rather than the resin used for transparent resin medium 1 using what ground AulAg, A.I. Artificial Intelligence, etc. in the size of about tens of holes. If the metallic mold is beforehand sculptured into mark product number etc. when forming reflector 2, design mark 3 will be formed and necessity, such as printing, will be lost. Although the example which uses two sets of injection molding machines explains Example 1, even if 2 types are used by one set or it uses a 2-color making machine, it cannot be overemphasized that the same thing is obtained. (Example 2) Example 2 is shown in Drawing 4. After forming transparent resin medium 1 using an injection molding machine like Example 1, it puts in guide frame 4. Next, the resin in which the metal powder of high reflectance was made to mix is poured in within the guide limit. The metal powder to be used may be Aus Ags A1 grade like Example 1, and the rubber system resin seldom used for fabrication besides PC, PMMA, and epoxy, such as silicone and urethane, may be sufficient as resin. Next, along with guide frame 4, thickness is fixed using a spatula etc., and resin is dried by the method of heating and others. If it is required temporarily to attach a design mark to reflector 2 and the lid beforehand sculptured into the design mark is put on reflector 2, when resin solidifies, a design mark will also be formed automatically. Although the above is the method of Example 2, the information recording medium made into the object of the present invention also by this method can be obtained. [Effect of the Invention] As mentioned above, the present invention is although it is a thing of making an information recording medium form using the same making machine or two making machines, When future reflection film coats, a protection coat, and printing become unnecessary by this, and all not only of the fall of cost but expensive Steam, tM/C, and other capital investment become unnecessary and it includes to quality, the effect of the present invention has a greatest thing.

[Brief Description of the Drawings]

Drawing 1 is a sectional view showing Example 1 of the present invention. Drawing 2.3 is a partial lineblock diagram in an injection mold showing the example of a formation method of Example 1. Drawing 4 is a sectional view showing Example 2 of the present invention. 1 ... Transparent resin medium. 2 ... Reflector 3 ... La Stampa 4 ... Guy F frame 5 ... La Stampa Guy Dollo ... Transparent resin medium guide. Above Applicant Seiko Epson, Inc. Figure 11