JPH09320239A - Method for printing label on disk and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a printing film from flawing or falling off and also to easily discriminate the front and back sides of a label printing surface by forming a rugged protective film and the printing film on a reflecting film of a disk substrate and enhancing fixing strength of printing a label on the disk accordingly. SOLUTION: The optical disk 1 is equipped with the reflecting film 1C vapor- deposited with gold and aluminum, etc., on a signal recording surface 1B of the substrate 1A, molded of a resin such as polycarbonate, etc. Moreover, the protective film 1D of an ultraviolet(UV) curing resin, etc., for preventing oxidation is equipped on the reflecting film 1C. Then, the printing film 1E consisting of toner particles is equipped on this protective film 1D. The signal recording surface 1B of the resin molded substrate 1A of this optical disk 1 has data recording pits in a rugged pattern. Then, the printing film 1E constitutes the label consisting of an index display showing recording contents and various designs.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a digital audio disk such as a compact disk, a video disk, and the like.
The present invention relates to a label printing method and apparatus for a disk such as an optical disk capable of recording / reproducing or erasing digital signals such as a CD-ROM.

[0002]

2. Description of the Related Art In a disc such as an optical disc, a reflection film is provided on a concave-convex signal recording surface of a disc substrate, and a protective film is applied so as to prevent the reflection film from being oxidized. Labels with various indexes and various designs are printed.

[0003]

However, in the prior art, when the label printing layer provided on the disc is exposed on the outer surface of the disc and the fixing strength between the protective film and the printing layer is low, the printing layer is damaged. Or dropout occurs.

Further, in the prior art, when the disc is set in a reproducing device or the like, the label print surface must be set so that it faces up, and the front and back of the label print surface can be visually identified before setting. I had a hard time.

An object of the present invention is to enhance the fixing strength of label printing on a disc, prevent damage and drop-off of the print film, and easily determine the front and back sides of the label printing surface by touch when setting the disc in a reproducing device or the like. To make it possible.

[0006]

According to a first aspect of the present invention, in a disc label printing method for printing a label on a disc, a reflective film provided on a signal recording surface of the disc substrate has an uneven surface. The method comprises a step of applying a protective film and curing the protective film, and a step of printing on the uneven surface of the protective film to form a printed film.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, the printing step is performed by electrophotographic printing for printing on a disk according to predetermined image data. is there.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, the printing step is performed by ink jet printing for printing on a disk according to predetermined image data. .

According to a fourth aspect of the present invention, in a disc label printing apparatus for printing a label on a disc, a reflective film provided on a signal recording surface of a disc substrate is coated with a protective film having an uneven surface, A protective film coating device that cures the protective film and a printing device that forms a printed film by printing on the uneven surface of the protective film are provided.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, the printing device is an electrophotographic printing device that prints on a disk according to predetermined image data. .

According to a sixth aspect of the present invention, in addition to the fourth aspect of the present invention, the printing device is an ink jet printing device that prints on a disk according to predetermined image data.

According to the first and fourth aspects of the present invention, the following operations are provided. Since the surface of the protective film is made uneven and the printed film is applied to this uneven surface, the contact area of the printed film applied to the protective film was increased. Therefore, the fixing strength of the printed film is increased by the above-mentioned increase in the contact area, and the printed film can be prevented from being damaged or dropped.

The surface of the label printing surface is uneven,
Since the back surface is smooth, the front surface of the label printing surface can be discriminated by the feel of the hand, and the setting on the reproducing device or the like becomes easy. It can also be a barrier-free product for the visually impaired.

According to the present invention as set forth in claims 2, 3, 5, and 6, the following effects are obtained. Printing is performed from image data, and no printing plate is required. Therefore, the productivity in small-quantity multi-product printing is good.

By subjecting the image data to digital signal processing, it is possible to easily change or correct the image or color arrangement.

In the practice of the present invention, the shape of the irregularities provided on the surface of the protective film is such that when the toner particle diameter used as a print medium is 7 to 13 μm, the toner particles are 2 to 3 layers per color, and color printing is performed. In the case of, each color is composed of C, M, and Y toners, so that 6 to 9 times as much as one color is obtained.
The layers will form the image. It is considered that the fixing strength of the printed film will be sufficient if about half of the printed film participates in the unevenness, and the unevenness dimension (the depth of the valley) is preferably about 10 to 50 μm.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing a label printing apparatus, FIG. 2 is a schematic diagram showing an electrophotographic printing apparatus, FIG. 3 is a schematic diagram showing an optical disc, and FIG. 4 is a schematic diagram showing manufacturing steps of the optical disc. 5 is a schematic diagram showing another example of the electrophotographic printing apparatus, and FIG. 6 is a schematic diagram showing the inkjet printing apparatus.

(Label Printing Apparatus 10) (FIGS. 1 and 3) A case will be described in which the disk to be printed is an optical disk (compact disk CD). As shown in FIG. 3, the optical disc 1 is provided with a reflective film 1C formed by vapor deposition of gold, aluminum or the like on a signal recording surface 1B of a resin molded substrate 1A such as polycarbonate, and the reflective film 1C is oxidized on the reflective film 1C. A protective film 1D such as an ultraviolet (UV) curable resin for prevention is provided, and a print film 1E made of toner particles is provided on the protective film 1D. In this optical disc 1, the signal recording surface 1B of the substrate 1A has uneven data recording pits. In addition, the print film 1E constitutes a label including an index display showing the recorded contents and various designs.

The label printer 10 is a computer 2
0 and the electrophotographic printing device 30.

(Computer 20) (FIG. 1) The computer 20 is a so-called personal computer, and has an input unit 21, an input / output unit 22, a central processing unit 23,
The image generation unit 24, the image data memory 25, and the print data conversion unit 26 are included.

The image generation unit 24 uses, for example, commercially available image creation software, (a) obtains a photograph or image data captured by an image scanner, and character data input to the keyboard from the input unit 21, and digitally obtains them. Or (b) image data stored in a magnetic floppy disk or a memory card, or image data transferred by communication is obtained from the input unit 21 to generate digital image data. In addition, the image generation unit 24 uses the above (a),
The image data generated in (b) can be modified and edited.

The image data memory 25 includes an image generator 24.
The image data generated (including correction and editing) is stored in the memory.

The print data converter 26 converts the image data stored in the image data memory 25 into print data. That is, the print data conversion unit 26 converts the image data of R, G, B (three primary colors of light) extracted from the image data memory 25 into print data of C, M, Y (three primary colors of paint). . The print data conversion unit 26 can also correct the above-described C, M, and Y print data according to the printing method and the characteristics of the toner so that the color development state is close to the original image. The print data converted by the print data conversion unit 26 is transmitted to the input / output unit 22.
To the electrophotographic printing device 30.

(Electrophotographic Printing Device 30) (FIG. 2) The electrophotographic printing device 30 receives the above-mentioned print data output from the computer 20, and prints a label on the optical disc 1 based on the print data. Electrophotographic printing device 3
0 has an input / output unit 31, a central processing unit 32, a disk moving unit 33, and a printing unit 34. Printing unit 34
Is a protective film coating device 41, a transfer device 42, and a fixing device 43.
Having. Then, based on the print data transferred from the computer 20, the central processing unit 30 (a) drives and controls the disk moving unit 33 via the feed control unit 101, and (b) controls the protective film coating control unit 102. The protective film coating device 41 is drive-controlled via the (c) transfer control unit 103, and the transfer device 42 is drive-controlled via the transfer control unit 103. (d) the fixing device 43 is drive-controlled via the fixing control unit 104.

The disk moving unit 33 includes a servo motor 33
A, a holder 33C is screwed onto a feed screw 33B driven by A, and the optical disc 1 before printing held by the holder 33C is
The substrate 1A (with the signal recording surface 1B and the reflection film 1C) is sequentially positioned on the protective film coating device 41, the transfer device 42, and the fixing device 43.

The protective film coating device 41 comprises a disc substrate 1A.
The protective film 1D having an uneven surface is applied to the reflective film 1C formed on the signal recording surface 1B, and the protective film 1D is cured. The protective film coating device 41 is a screen coating device 41A.
And a curing device 41B. Screen coating device 41
In A, an ultraviolet (UV) curable resin to be the protective film 1D is applied onto the reflective film 1C by a screen printing method, and the resin does not pass through the portion corresponding to the stitch portion of the screen, so that the opening of the screen is formed in the concave portion. Since the resin passes through the portions corresponding to the portions, the portions become convex portions, and the protective film 1D having an uneven surface is formed. The curing device 41B cures the protective film 1D with a UV lamp. The method of making the surface of the protective film 1D uneven may be such that the resin to be the protective film 1D is sprayed by spraying to be applied in a laminated manner, and the surface of the resin 1D is made uneven by laminating particles of the resin. .

The transfer device 42 is composed of a charging device 42A, a laser exposure device 42B, a developing device 42C, a transfer member 42D, etc., and toner of colored powder or colored liquid is formed on the protective film 1D by a well-known electrophotographic printing method. The printing film 1E is printed by transferring

The fixing device 43 is composed of a heater 43A and the like, and heats (fixes) the toner on the printed film 1E.

Therefore, the manufacturing process of the optical disc 1 is performed as follows (FIG. 4). (1) Signal recording step (FIG. 4A) The signal recording surface 1B is provided on the substrate 1A of the optical disc 1.

(2) Reflective Film Forming Step (FIG. 4B) A reflective film 1C is provided on the signal recording surface 1B provided on the substrate 1A of the optical disc 1.

(3) Protective film forming step (FIG. 4 (C)) The optical disk 1 is positioned by the disk moving unit 33 to the protective film coating device 41, and the protective film 1D having an uneven surface on the reflective film 1C of the optical disk 1 is positioned. Apply. Then, the protective film 1D is uncured or semi-cured.

(4) Printing Process (FIG. 4 (D)) The optical disc 1 is transferred by the disc moving unit 33 to the transfer device 42.
The toner is transferred onto the uneven surface of the uncured or semi-cured protective film 1D, and the printed film 1E is provided.

(5) Fixing Step The optical disk 1 is fixed by the disk moving unit 33 to the fixing device 43.
Then, the toner on the printed film 1E is fixed.

Therefore, according to this embodiment, there are the following actions. Since the surface of the protective film 1D is made uneven and the printed film 1E is attached to this uneven surface, the contact area of the printed film 1E attached to the protective film 1D is increased. Therefore, the printed film 1
The fixing strength of E is increased by the above-mentioned increase in the contact area, and damage or dropout of the printed film 1E can be prevented.

The surface of the label printing surface is made uneven,
Since the back surface is smooth, the front surface of the label printing surface can be discriminated by the feel of the hand, and the setting on the reproducing device or the like becomes easy. It can also be a barrier-free product for the visually impaired.

Printing is performed from image data,
Does not require a printing plate. Therefore, the productivity in small-quantity multi-product printing is good.

By digitally processing the image data, it is possible to easily change or correct the image and color arrangement. That is, (a) image data (including character data) can be generated using the computer 20, that is, image data can be created, modified, or edited.
(b) By the above (a), it is possible to easily change or modify the image or color arrangement of the image data newly captured by the computer 20 or captured from the outside through communication, a recording medium (magnetic floppy disk, memory card). Can be done. Therefore, it is possible to confirm the printed label and easily correct the difference between the original image and the image.

(Electrophotographic Printing Device 50) (FIG. 5) The electrophotographic printing device 30 described above can be replaced with the electrophotographic printing device 50 shown in FIG. Electrophotographic printing device 5
0 is different from the electrophotographic printing device 30 in that the transfer device 42
It is because a transfer device 51 that uses UV-curable toner is adopted as the transfer device 51 instead of the above, and a UV lamp 52A is used as the fixing device 52 instead of the fixing device 43.

Therefore, even when the electrophotographic printer 50 is used, the optical disc 1 is manufactured by the above-mentioned manufacturing steps (1) to (5).
It is manufactured by a manufacturing process substantially similar to that of FIG. 4 and has the same effects as those described above.

(Inkjet Printing Apparatus 60) (FIG. 6) The electrophotographic printing apparatus 30 described above can be replaced with the inkjet printing apparatus 60 shown in FIG. The difference between the inkjet printing apparatus 60 and the electrophotographic printing apparatus 30 is that
This is because an inkjet printer is used as the printing device 61 instead of the transfer device 42. As the ink jet method of the ink jet printing apparatus 60, any of well-known pressure control method, heat control method, electric field control method, discharge method, electroosmosis method, continuous jet method, etc. may be adopted.

Therefore, this ink jet printing apparatus 60
When using the optical disc 1, the optical disc 1 is manufactured by the above-mentioned manufacturing process (1).
~ (5) (Fig. 4) is manufactured by a manufacturing process substantially similar to
It has the same effects as those described above.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed without departing from the gist of the present invention. Etc. are included in the present invention. For example, the electrophotographic printing apparatus and the inkjet printing apparatus may have any specific configurations.

[0043]

As described above, according to the present invention, the fixing strength of the label printing of the disc is enhanced, the damage or the drop of the printing film is prevented, and the label printing surface is set on the disc set to the reproducing device. It is possible to easily distinguish the front and back sides of.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a label printing apparatus.

FIG. 2 is a schematic diagram showing an electrophotographic printing apparatus.

FIG. 3 is a schematic diagram showing an optical disc.

FIG. 4 is a schematic view showing a manufacturing process of an optical disc.

FIG. 5 is a schematic diagram showing another example of the electrophotographic printing apparatus.

FIG. 6 is a schematic diagram showing an inkjet printing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical disk 1A Disk substrate 1B Signal recording surface 1C Reflective film 1D Protective film 1E Printing film 10 Label printing device 20 Computer 30 Electrophotographic printing device 41 Protective film coating device 42 Printing device 50 Electrophotographic printing device 60 Inkjet printing device

Claims (6)

[Claims] 1. A disc label printing method for printing a label on a disc, comprising a step of applying a protective film having an uneven surface to a reflective film formed on a signal recording surface of a disc substrate and curing the protective film. And a step of printing on the uneven surface of the protective film to form a printed film, a label printing method for a disc. 2. The disc label printing method according to claim 1, wherein the printing step is performed by electrophotographic printing for printing on a disc according to predetermined image data. 3. The label printing method for a disc according to claim 1, wherein the printing step is performed by inkjet printing for printing on the disc according to predetermined image data. 4. A disc label printing apparatus for printing a label on a disc, wherein a protective film having an uneven surface is applied to a reflective film formed on a signal recording surface of a disc substrate, and the protective film is cured. A label printing apparatus for a disc, comprising: a coating apparatus; and a printing apparatus for printing on the uneven surface of the protective film to form a printing film. 5. The electrophotographic printing device, wherein the printing device prints on a disc according to predetermined image data.
Label printing device for the described disc. 6. The disc label printing apparatus according to claim 4, wherein the printing apparatus is an inkjet printing apparatus that prints on a disk according to predetermined image data.