JP2007066437A - Equipment and method for manufacturing optical information recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide equipment for manufacturing an optical information recording medium wherein the number of working persons arranged at the manufacturing equipment can be reduced and a manufacturing line which is rich in flexibility and has high productivity is attained, and to provide a method of manufacturing the same. <P>SOLUTION: The equipment manufactures the optical information recording medium having a coloring matter recording layer on an information recording side substrate, and the equipment includes: a substrate forming machine for forming the information recording side substrate; a coloring matter application machine for forming the coloring matter recording layer on the formed information recording side substrate; a dummy substrate forming machine for forming a dummy substrate stuck to the information recording side substrate; and a sticking machine for sticking the information recording side substrate on which the coloring matter recording layer is formed and the dummy substrate, and the equipment has a first manufacturing line from the substrate forming machine to the sticking machine and a second manufacturing line from the dummy substrate forming machine to the sticking machine, wherein the sticking machine is arranged so as to approach the substrate forming machine and the dummy substrate forming machine, and the first manufacturing line and the second manufacturing line are formed into nearly L shape, respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk manufacturing facility and a manufacturing method for manufacturing an optical disk.

  In general, as an optical information recording medium (optical disc) capable of recording information only once by a laser beam, there are a write-once type CD (so-called CD-R) and a DVD-R, and the conventional CD (compact disc). Compared to production, it has the advantage that a small amount of CD can be supplied to the market quickly and at a reasonable price, and the demand is increasing with the recent spread of personal computers and the like.

  A typical structure of a CD-R type optical information recording medium includes a recording layer made of an organic dye on a transparent disk-shaped substrate having a thickness of about 1.2 mm, a light reflecting layer made of a metal such as gold or silver, A protective layer made of resin is laminated in this order.

  Also, the DVD-R type optical information recording medium has a structure in which the information recording surfaces of two disc-shaped substrates (thickness of about 0.6 mm) are bonded together facing each other, and the amount of recorded information It has the feature that there are many.

  Information writing (recording) on these optical information recording media is performed by irradiating laser light in the near-infrared region (normally around 780 nm for CD-R and around 635 nm for DVD-R). The irradiated part of the dye recording layer absorbs the light and the temperature rises locally, causing a physical or chemical change (for example, generation of pits), and information is recorded by changing its optical characteristics. Is done.

  On the other hand, reading (reproduction) of information is usually performed by irradiating a laser beam having the same wavelength as that of the recording laser beam. Information is reproduced by detecting a difference in reflectance from a non-changed part (unrecorded part).

  When manufacturing such an optical information recording medium, for example, as shown in Patent Document 1 below, a forming equipment for forming a substrate and a dye solution for forming a dye recording layer on the substrate are applied on the substrate. The manufacturing equipment which has the application equipment to perform and the post-processing equipment including the process which forms a light reflection layer on a dye recording layer at least is needed.

JP 2001-6229 A

By the way, at present, the efficiency of the optical disc manufacturing process is further improved. In order to increase the efficiency of the manufacturing process, it is important to configure the manufacturing equipment so that each processing machine in the manufacturing process can be operated completely continuously.
However, the arrangement of each processing machine is determined at the time of designing the manufacturing equipment based on the manufacturing procedure, and the processing equipment is operated according to the operation set by the operator during the manufacturing process. In order to increase productivity, it is necessary to arrange a large number of workers, and it takes time for the workers to reciprocate between the processing machines, and it is necessary to replace replacement parts of a predetermined processing machine. There was room for improvement.

  The present invention has been made in consideration of such problems, and the object thereof is to realize a highly flexible and highly productive production line that can reduce the number of workers placed in a production facility. Another object of the present invention is to provide an optical information recording medium manufacturing facility and an optical information recording medium manufacturing method.

  The object of the present invention is an apparatus for manufacturing an optical information recording medium having a dye recording layer on an information recording side substrate, a substrate molding machine for molding the information recording side substrate, and the molded information recording side substrate A dye coating machine for forming a dye recording layer, a dummy substrate molding machine for forming a dummy substrate to be bonded to the information recording side substrate, the information recording side substrate on which the dye recording layer is formed, and the dummy substrate, A first production line extending from the substrate molding machine to the bonding machine, and a second production line extending from the dummy substrate molding machine to the bonding machine. The bonding machine is disposed so as to approach the substrate molding machine and the dummy substrate molding machine, and the first production line and the second production line are each formed in a substantially L shape. It is achieved by the manufacturing equipment of the optical information recording medium characterized.

  An optical information recording medium manufacturing facility according to the present invention includes a first manufacturing line for forming an information recording side substrate and forming a dye recording layer on the information recording side substrate, and a second manufacturing line for forming a dummy substrate. And the first production line and the second production line are joined together by a laminating machine to form one continuous line as a whole production process. In general, the substrate molding machine and the dummy substrate molding machine take a certain amount of time to start up the apparatus itself until it is in a state where molding can be actually started. Further, the bonding machine requires an operation of adjusting the conditions for bonding the information recording side substrate and the dummy substrate at the start of operation. Therefore, the first manufacturing line and the second manufacturing line are each formed in a substantially L shape, and the bonding machine is arranged close to the substrate molding machine and the dummy substrate molding machine. Then, at the time of manufacturing, after starting the substrate molding machine, the worker moves to the bonding machine and makes necessary adjustments until the start of the substrate molding machine is completed, and again in the vicinity of the substrate molding machine Since the distance required for the movement is shortened when returning to the position, the adjustment of the bonding machine can be reliably completed within the time required for starting up the substrate molding machine. When the production line from the substrate molding machine to the bonding machine is arranged in a straight line as in the conventional manufacturing equipment, it takes a long time for the operator to move because the distance from the substrate molding machine to the bonding machine is long. From the above, an operator is arranged for each of the substrate molding machine and the bonding machine, but the optical information recording medium manufacturing facility according to the present invention can handle the substrate molding machine and the bonding machine by the same operator. Therefore, an increase in the number of workers in the manufacturing facility can be suppressed. In addition, since the bonding machine is adjusted within the time required to start up the substrate molding machine, the time from the start of the device to the actual start of production can be shortened, producing optical information recording media. Can be improved.

The production facility for the optical information recording medium is preferably arranged such that the dye coating machine and the laminating machine face each other in the first production line.
In the same manner as the laminating machine, the dye coating machine requires a so-called condition setting operation of adjusting the coating conditions, and the operator often actually operates the operation section of the dye coating machine. Therefore, the time required for the operator to move between the dye coating machine and the bonding machine can be shortened by arranging the dye coating machine and the bonding machine so as to face each other in the first production line. .

  The optical information recording medium manufacturing facility has a sputtering machine for performing sputtering film formation on the information recording side substrate on which the dye recording layer is formed, and the operation unit side of the sputtering machine is the substrate molding machine side in the first manufacturing line. It is preferable to arrange so as to face. The sputtering machine needs to replenish a material such as silver or aluminum that becomes a mask during sputtering film formation according to wear. Therefore, the time required for the operator to move from the substrate molding machine to the sputtering machine at the time of maintenance of the sputtering machine by arranging the sputtering unit so that the operation unit faces the substrate molding machine side in the first production line. Can be shortened.

  ADVANTAGE OF THE INVENTION According to this invention, the number of workers arrange | positioned at a manufacturing facility can be reduced, and the manufacturing facility of an optical information recording medium which can implement | achieve a highly productive manufacturing line with sufficient flexibility, and an optical information recording medium A manufacturing method can be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing equipment for manufacturing an optical information recording medium according to the present invention. FIG. 2 is a flowchart showing a manufacturing procedure of the optical information recording medium according to the present invention. FIG. 1 shows a state in which the entire manufacturing equipment is viewed from above. In this specification, the arrow A direction side is the back side of the manufacturing equipment (also simply referred to as the back side), and the arrow B direction side is the side. The left side of the manufacturing facility (simply referred to as the left side) and the arrow C direction side are defined as the right side of the manufacturing facility (simply referred to as the right side).

  As shown in FIG. 1, the manufacturing equipment 100 of this embodiment is a structure which manufactures an optical disk (DVD-R) as an example of an optical information recording medium. A disc substrate constituting an optical disc has a configuration in which an information recording side substrate and a dummy substrate are bonded together. The production facility 100 includes a first production line F1 for producing an information recording side substrate and a second production line F2 for producing a dummy substrate, and the first production line F1 and the second production line F2 are: In the laminating machine 31 for laminating the information recording side substrate and the dummy substrate, the information recording side substrate is joined to one line.

  In the first production line F1, a substrate molding machine 11 for molding an information recording side substrate (hereinafter also simply referred to as a substrate) and a substrate cooling machine 12 for cooling the formed information recording side substrate in the order of the manufacturing process. And a dye coating machine 13 for forming a dye recording layer on the molded information recording side substrate, an annealing machine 14 for drying the information recording side substrate coated with the dye material, and sputtering film formation on the information recording side substrate. A sputter machine 15 is provided.

  The second production line F2 includes a dummy substrate molding machine 21 for forming dummy substrates, a substrate cooler 22 for cooling the formed dummy substrates, and a dummy annealing machine for annealing the dummy substrates in the order of the manufacturing process. 23. Further, in this embodiment, a dummy substrate molding machine 24 that further molds a dummy substrate is provided on the back side of the dummy annealing machine 23. However, only the dummy substrate molding machine 21 is provided without arranging the dummy substrate molding machine 24. It can be set as the structure currently provided.

  In order to produce a polycarbonate disk-shaped substrate, the substrate molding machine 11 melts polycarbonate as a raw material at a high temperature, is poured into a stamper in which a disk-shaped mold is formed, applies high pressure, and then cools. Remove the molded disk substrate from the stamper. Here, the thickness of the molded substrate is about 0.6 mm.

  The substrate cooler 12 is disposed adjacent to the back side of the substrate molding machine 11. The substrate cooler 12 is taken out from the substrate molding machine 11 and cools the information recording side substrate having a temperature of about 100 ° C.

  The dye applicator 13 is disposed adjacent to the back side of the substrate cooler 12. The dye applicator 13 holds the substrate on the turntable and applies an organic dye material to the recording side surface of the substrate by a coating device. When applying the dye material, the substrate is applied by spin coating, and the dye material is uniformly extended so as not to cause uneven application on the substrate surface.

  The annealing machine 14 is arranged adjacent to the back side of the dye coating machine 13. The annealing machine 14 dries the substrate coated with the dye material in the dye coating machine 13 in a drying chamber set in an atmosphere of 70 ° C. to 100 ° C., and sufficiently volatilizes the solvent remaining on the substrate.

  The sputtering machine 15 is disposed so as to be adjacent to the left side of the annealing machine 14. The sputtering machine 15 is configured to form a thin film having a thickness of 120 nm to 160 nm, which becomes a reflective film, on the pit transfer surface of the information recording side substrate. Silver or aluminum is used as the material for the thin film. Sputtering is to transport a substrate into a vacuum chamber, generate plasma in a vacuum atmosphere in the vacuum chamber, and deposit a material constituting a thin film on the substrate. As the sputtering machine 15, a commercially available sputtering film forming apparatus can be used. The sputtering machine 15 needs to be replenished because silver or aluminum used as a thin film material is consumed. The sputtering machine 15 is provided with an operation unit for replenishing silver or aluminum. In the present embodiment, the sputtering machine 15 is arranged such that the operation unit faces the substrate molding machine 11 side, that is, the front side (opposite side of the arrow A direction) with respect to the back side of the manufacturing equipment 100. Has been.

  Although not shown, since the dye material adheres to the disk edge of the substrate on which the sputtering film is formed by the sputtering machine 15, the edge that flushes the dye material by injecting an alcohol-based solvent onto this outer peripheral portion. A washing machine is provided.

  A bonding apparatus 31 is disposed on the most downstream side of the first production line, and the information recording side substrate is conveyed to the bonding apparatus 31. The bonding apparatus 31 is disposed on the front side obliquely to the left with respect to the sputtering machine 15.

  The substrate forming machine 21 for the dummy substrate in the second production line has the same basic configuration as the substrate forming machine 11, but a pit transfer surface is formed on the sputter mold of the substrate forming machine 21 for the dummy substrate. Therefore, no pits are formed on the formed dummy substrate. The thickness of the dummy substrate is about 0.6 mm.

  The substrate cooler 22 is disposed adjacent to the back side of the substrate molding machine 21 and cools the dummy substrate formed by the substrate molding machine 21.

  The dummy annealer 23 is disposed on the back side of the substrate cooler 22 and holds the substrate transported from the substrate cooler 22 in the drying chamber so as to have a predetermined temperature. On the back side of the dummy annealing machine 23, a substrate molding machine 24 for dummy substrates is arranged.

  A bonding machine 31 is arranged at the most downstream side of the second production line, and the bonding machine 31 is arranged adjacent to the right side of the dummy annealing machine 23.

  In the bonding machine 31, the information recording side substrate manufactured in the first manufacturing line F1 and the dummy substrate manufactured in the second manufacturing line F2 are respectively carried in, and an ultraviolet curable resin or the like is provided between the substrates. The adhesive is applied and two substrates are bonded together. In order to accelerate the curing of the adhesive of the ultraviolet curable resin, an ultraviolet irradiation device (not shown) may be disposed downstream of the bonding machine 31. The disk substrate configured by bonding the two substrates is unloaded from the bonding machine 31. Further, on the downstream side of the bonding machine 31, a device for writing ID information or the like may be arranged on the inner periphery of the disk substrate.

  In the manufacturing equipment 100 of the present embodiment, the first manufacturing line F1 includes a line from the substrate molding machine 11 to the annealing machine 14 arranged in a straight line toward the back side (arrow A direction) of the manufacturing equipment 100, and annealed. The direction of the line is changed from the machine 14 to the left side (arrow B direction), and it reaches the bonding machine 31 via the sputtering machine 15.

  Further, in the second production line F2, a line from the substrate molding machine 21 to the dummy annealing machine 23 of the dummy substrate is arranged in a straight line toward the back side (arrow A direction) of the manufacturing equipment 100, and the dummy annealing machine 14 The direction of the line is changed from right to left (in the direction of arrow C) to reach the bonding machine 31.

  As described above, the first production line F1 and the second production line F2 are extended in parallel to each other from the front side of the production equipment 100 and are joined at the most downstream by the laminator 31 from the left and right. In addition, each is formed in a substantially L shape.

  Thus, the optical information recording medium manufacturing facility 100 according to the present invention forms the information recording side substrate, and forms the first manufacturing line F1 for forming the dye recording layer on the information recording side substrate, and the dummy substrate. The second production line F2 is provided, and the first production line F1 and the second production line F2 are joined together by a bonding machine to form a single continuous line as a whole production process. Generally, the substrate molding machine 11 and the substrate molding machine 21 for dummy substrates take a certain amount of time to start up the apparatus itself until it becomes ready to actually start molding. Further, the bonding machine 31 requires an operation of adjusting the conditions for bonding the information recording side substrate and the dummy substrate at the start of operation. Therefore, as in the manufacturing facility 100 of the present embodiment, the first manufacturing line F1 and the second manufacturing line F2 are each formed in a substantially L shape, and the bonding machine 31 is a substrate forming machine 11 and a dummy substrate. It is arranged close to the molding machine 21. Then, at the time of manufacturing, after starting the substrate molding machines 11 and 21, the operator moves to the bonding machine 31 and performs necessary adjustments until the start-up of the substrate molding machines 11 and 21 is completed. When returning to the vicinity of the substrate molding machines 11 and 21 again, the distance required for movement is shortened, so that the adjustment of the laminating machine 31 is ensured within the time required for starting up the substrate molding machines 11 and 21. Can be completed. When the production lines from the substrate molding machines 11 and 21 to the bonding machine are arranged on a straight line as in the conventional manufacturing facility, the work is performed by the longer distance from the substrate molding machines 11 and 21 to the bonding machine 31. Since it takes time for the operator to move, the workers are arranged for each of the substrate molding machines 11 and 21 and the bonding machine 31. However, the optical information recording medium manufacturing facility 100 according to the present invention includes the substrate molding machine 11. , 21 and the laminating machine 31 are arranged at positions close to each other in the manufacturing facility 100, so that they can be handled by the same worker, so that an increase in the number of workers in the manufacturing facility 100 is suppressed. can do. Further, since the bonding machine 31 is adjusted within the time required for starting up the substrate molding machines 11 and 21, the time from the start of the apparatus to the actual start of production can be shortened. The productivity of the recording medium can be improved.

Next, a method for manufacturing an optical information recording medium according to the present invention will be described. In addition, the manufacturing method of the optical information recording medium based on this invention can be implemented suitably by using the manufacturing equipment 100 shown in FIG. In the following, description will be made with reference to the manufacturing equipment 100 of FIG.
First, the operator starts the substrate forming machine 11 for the information recording side substrate and performs a step of forming the substrate (step S11). The formed substrate is cooled by the substrate cooler 12 (step S12), and then the substrate is carried into the dye applicator 13. A dye recording layer is formed on the information recording side substrate by the dye coater 13 (step S13), and the substrate coated with the dye is dried by the annealing machine 14 (step S14). After drying, the substrate is carried into the sputtering machine 15, and sputtering film formation is performed to form a thin film serving as a reflection film on the information recording side substrate (step S15). After sputtering film formation, the information recording side substrate is carried into the bonding machine 31.

  On the other hand, the second production line is operated in synchronization with the first production line. First, a dummy substrate is molded by the substrate molding machine 21 (step S21), the molded dummy substrate is cooled by the substrate cooler 22 (step S22), and then the dummy substrate is annealed by the dummy annealing machine 23 (step S22). S23). After the annealing process, the dummy substrate is carried into the bonding machine 31.

  The information recording side substrate and the dummy substrate respectively carried into the bonding machine 31 are bonded together by applying an adhesive and being in close contact with each other (step S31). In this way, the disk substrate that is an optical information recording medium formed by bonding the two substrates is carried out. Note that a pre-writing process in which ID information or the like is written on the inner periphery of the disk substrate may be performed after the bonding.

  In the manufacturing method according to the present invention, it takes some time for the substrate to start up in a state where the substrate can be started after the substrate molding machines 11 and 21 are started. For this reason, the operator can adjust the pigment coating machine 13 and the laminating machine 31 before the substrate molding machines 11 and 21 are started up.

FIG. 3 is a diagram illustrating an example of an operator's work procedure when starting up the substrate molding machine.
First, the operator activates the substrate molding machines 11 and 21 (step S41). While the substrate molding machines 11 and 21 are started up, the color material is adjusted by moving to the operation unit of the dye coating machine 13 (step S42). Next, it moves to the operation part of the bonding machine 31, and adjustments, such as setting conditions, are performed (step S43). Note that the order of adjustment of the dye applicator 13 and the bonding machine 31 may be alternated. Moreover, you may adjust only one among the pigment | dye coating machine 13 and the bonding machine 31. FIG.

  After adjusting the dye applicator 13 and the bonding machine 31, the process returns to the substrate molding machines 11 and 21 again, and the substrate molding machines 11 and 21 are completely up to complete preparations for starting production (step S44).

  In the manufacturing method according to the present invention, as shown in FIG. 1, a manufacturing facility configured such that the substrate forming machines 11 and 21 and the bonding machine 31 of the information recording side substrate and the dummy substrate are close to each other is used. is doing. Then, since the distance that an operator moves between the substrate molding machines 11 and 21 and the bonding machine 31 is shortened at the time of manufacture, the bonding machine 31 is within the time required to start up the substrate molding machines 11 and 21. It is possible to reliably complete the adjustment. Since the substrate forming machines 11 and 21 and the bonding machine 31 can be handled by the same operator by shortening the distance between the substrate forming machines 11 and 21 and the bonding machine 31, the manufacturing facility 100 The increase in the number of workers inside can be suppressed. Further, since the dye coating machine 13 and the bonding machine 31 are adjusted within the time required for starting up the substrate molding machines 11 and 21, the time from the start of the apparatus to the actual start of production is shortened. And the productivity of the optical information recording medium can be improved.

  As shown in FIG. 1, in the optical information recording medium manufacturing facility 100 according to the present invention, in the first manufacturing line F1, the dye applicator 13 and the bonding machine 31 are arranged in the left-right direction (arrow B in FIG. 1). Or in the direction of C). The dye applicator 13 and the bonding machine 31 are each provided with an operation unit that is actually operated by an operator at the time of adjustment, and the operation units are arranged to face each other. For this reason, when adjusting the pigment | dye coating machine 13 and the bonding machine 31, an operator can adjust the other apparatus by adjusting one apparatus and then moving to the left-right direction while changing direction. . And if it is a movement only in the left-right direction, since it will not leave | separate from the board | substrate molding machines 11 and 21 arrange | positioned in front of the manufacturing equipment 100 to the back side, it suppresses that the movement distance at the time of work becomes long. It is possible to prevent the production efficiency from being lowered.

It is a figure which shows the manufacturing equipment of the optical information recording medium based on this invention. It is a flowchart which shows the manufacture procedure of the optical information recording medium based on this invention. It is a figure which shows an example of the operator's work procedure at the time of starting of a substrate molding machine.

Explanation of symbols

11 Substrate molding machine 13 (for information recording side substrate) Dye coating machine 14 Annealing machine 15 Sputtering machine 21 Substrate molding machine (for dummy board) 23 Dummy annealing machine 31 Bonding machine 100 Manufacturing equipment

Claims (4)

An equipment for manufacturing an optical information recording medium having a dye recording layer on an information recording side substrate,
A substrate molding machine for molding the information recording side substrate;
A dye coating machine for forming a dye recording layer on the molded information recording side substrate;
A dummy substrate molding machine for molding a dummy substrate to be bonded to the information recording side substrate;
A bonding machine for bonding the information recording side substrate on which the dye recording layer is formed and the dummy substrate; and
A first production line from the substrate molding machine to the laminating machine, and a second production line from the dummy substrate molding machine to the laminating machine,
The bonding machine is disposed so as to approach the substrate molding machine and the dummy substrate molding machine, and the first manufacturing line and the second manufacturing line are each formed in a substantially L shape. Manufacturing equipment for optical information recording media.   2. The optical information recording medium manufacturing facility according to claim 1, wherein the dye coating machine and the laminating machine are arranged so as to face each other in the first production line.   A sputtering machine for performing sputtering film formation on the information recording side substrate on which the dye recording layer is formed, and the operation unit side of the sputtering machine is disposed so as to face the substrate molding machine side in the first production line; The apparatus for manufacturing an optical information recording medium according to claim 1, wherein the optical information recording medium is manufactured. A method for producing an optical information recording medium having a dye recording layer on an information recording side substrate,
Forming the information recording substrate with a substrate molding machine;
Forming a dye recording layer on the molded information recording side substrate with a dye coating machine;
Forming a dummy substrate to be bonded to the information recording side substrate with a dummy substrate molding machine;
Bonding the information recording side substrate on which the dye recording layer is formed and the dummy substrate with a bonding machine,
When using a production facility comprising a first production line from the substrate molding machine to the bonding machine and a second production line from the dummy substrate molding machine to the bonding machine, the bonding is performed. The optical information recording system is characterized in that the first manufacturing line and the second manufacturing line are each arranged in a substantially L shape so that a machine approaches the substrate molding machine and the dummy substrate molding machine. A method for manufacturing a medium.

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