WO2004009316A1 - 光ディスクのリサイクル方法およびリサイクルシステム - Google Patents
光ディスクのリサイクル方法およびリサイクルシステム Download PDFInfo
- Publication number
- WO2004009316A1 WO2004009316A1 PCT/JP2003/009296 JP0309296W WO2004009316A1 WO 2004009316 A1 WO2004009316 A1 WO 2004009316A1 JP 0309296 W JP0309296 W JP 0309296W WO 2004009316 A1 WO2004009316 A1 WO 2004009316A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- synthetic resin
- resin substrate
- optical disc
- optical disk
- substrate
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 187
- 238000004064 recycling Methods 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 27
- 239000000758 substrate Substances 0.000 claims abstract description 150
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 88
- 239000000057 synthetic resin Substances 0.000 claims abstract description 88
- 239000002994 raw material Substances 0.000 claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 238000005498 polishing Methods 0.000 claims description 38
- 239000000843 powder Substances 0.000 claims description 31
- 238000011084 recovery Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 239000010931 gold Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 62
- 238000003860 storage Methods 0.000 description 16
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 230000032258 transport Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000000243 photosynthetic effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0448—Cutting discs
- B29B2017/0452—Cutting discs the discs containing abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0484—Grinding tools, roller mills or disc mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to a recycling method and a recycling system for a broadly-defined optical disc including, for example, a so-called magneto-optical disc as well as a write-once optical disc called a CD-R and a read-only optical disc called a CD-ROM.
- a broadly-defined optical disc including, for example, a so-called magneto-optical disc as well as a write-once optical disc called a CD-R and a read-only optical disc called a CD-ROM.
- CD-Rs write-once optical disks
- CD-ROMs read-only optical disks
- magneto-optical disks Various optical disks are used.
- a recording layer and a reflective layer are sequentially laminated on a synthetic resin substrate.
- the raw material of a synthetic resin substrate such as polycarbonate is delivered from a raw material supplier to an optical disk press company.
- the optical disk press manufactures a synthetic resin substrate from the raw material, and then the recording layer and the reflective layer are sequentially laminated on the synthetic resin substrate.
- the optical disc has predetermined information such as music information, game information, or video information recorded by a press of the optical disc, and is shipped to a predetermined shop such as a CD shop or a personal computer shop as a CD-ROM or the like. .
- the optical disk is shipped as a CD-R or the like from a press company to a general company such as a computer program developer without recording any information. Predetermined information is recorded.
- optical disc By the way, when predetermined information is recorded on the optical disc, unfinished information is often recorded, or the information is often miswritten. Although such optical discs are unnecessary for presses and general contractors, raw material suppliers can use the synthetic resin substrates of optical discs that are no longer needed, so it is necessary to recycle unnecessary optical discs. high.
- the disk after the disk data is destroyed is a mixture of a light absorbing agent and a metal film such as aluminum or gold constituting a reflective layer on a transparent synthetic resin substrate. Waste is disposed of as garbage. Even in this case, there is still a problem in disposal because the plastic and metal are not separated. Further, in order to use such an optical disk as a resource, it is necessary to separate the substrate into a form capable of recovering at least the synthetic resin substrate and the metal of the reflective film by taking some means.
- the light absorbing layer and the reflecting layer as the recording layer are separated from each other, but the light absorbing layer and the synthetic resin substrate are not separated.
- the separation of the light absorbing layer and the synthetic resin substrate must be performed separately. Efficiency is poor.
- the optical disk is polished while supplying water.
- each of the above methods has serious difficulties in its processing, and furthermore, it is necessary to perform data destruction or data unreadable processing on the optical disk unless a special disposal company is used for special processing.
- a special disposal company is used for special processing.
- the recycling cost of the optical disk increases accordingly.
- the present invention has been made in view of the above-mentioned problems, and enables a press operator of an optical disc or a purchaser of an optical disc from the press operator to easily and reliably destroy data on the optical disc.
- An object of the present invention is to provide an optical disk recycling method and a recycling system capable of reducing recycling costs. Disclosure of the invention
- the present invention provides a raw material supplier (I) for a synthetic resin substrate (1), a presser (II) for an optical disk (d), and further a presser (II).
- a recycling method for an optical disk (d) which recycles an optical disk (d) consisting of a synthetic resin substrate (1) on which a recording layer (2) and a reflective layer (3) are sequentially laminated. So,
- the raw material of the synthetic resin substrate (1) is procured or manufactured by the substrate raw material manufacturing apparatus (A),
- a synthetic resin substrate (1) is manufactured from the raw material of the synthetic resin substrate (1) by an optical disk manufacturing apparatus (B), and then the synthetic resin substrate (
- An optical disc (d) is manufactured by sequentially laminating the recording layer (2) and the reflective layer (3) on 1)
- predetermined information is recorded on the optical disk (d) by the information recording device (C),
- the substrate collecting device (D) removes the unnecessary optical disc (d) without supplying water using polishing means (20).
- the powder that has been polished and peeled off is collected using a powder collecting means (30) while being ground and peeled from the substrate (1) by polishing from the reflective layer (3) side, and the recording layer (2) And collecting a pure and transparent synthetic resin substrate (1) to which each material constituting the reflective layer (3) is not attached.
- the substrate recovery apparatus is configured to polish the optical disk from the reflective layer side to separate the reflective layer and the recording layer from the substrate in a powder state, so that the destruction of the optical disk and the pure destruction can be achieved.
- the collection of the substrate can be performed mechanically at once. For this reason, in the event that incomplete information is recorded on the optical disk or the information is lost or written by the optical disk press company or the company that purchased the optical disk from the press company, the business company directly uses the substrate collection device. Destruction of optical disk data A pure substrate can be easily and reliably recovered. Therefore, there is no need to ask the discarder to destroy the data on the optical disk, and if the substrate of the optical disk is directly delivered from the company to the material supplier, the recycling cost of the optical disk can be reduced.
- gold may be collected from the powder collected by the powder collecting means (30). 'This method allows us to recycle not only resin but also gold.
- the synthetic resin substrate (1) may be crushed into a pellet shape.
- the optical disk recycling system includes a raw material supplier (I) for the synthetic resin substrate (1), a presser (II) for the optical disc (d), and a presser (II).
- An optical disc (d) consisting of a synthetic resin substrate (1) on which a recording layer (2) and a reflective layer (3) are sequentially stacked is recycled between an optical disc (d) and a supplier who purchased the optical disc (d).
- Recycling system "
- the raw material supplier (I) for the synthetic resin substrate (1) includes a substrate raw material manufacturing apparatus (A) for manufacturing the raw material for the synthetic resin substrate (1), and a press supplier (II) for the optical disk (d).
- a substrate raw material manufacturing apparatus (A) for manufacturing the raw material for the synthetic resin substrate (1) includes a press supplier (II) for the optical disk (d).
- the optical disk recycling method can be easily and reliably realized, and the optical disk recycling cost can be reduced.
- FIG. 1 is a schematic diagram showing the overall configuration of a recycling system according to one embodiment of the present invention.
- FIG. 2 is a schematic front view of the substrate collecting apparatus of FIG.
- FIG. 3 is a schematic side view.
- FIG. 4 is a side view showing a cross section of a part of the polishing means and the disk holder.
- FIG. 5A is a schematic plan view of the optical disk storage section.
- (B) is a schematic plan view of the substrate storage section. .
- FIG. 6 is a plan view of the disk-shaped support plate of the polishing member.
- FIG. 7A is a partially enlarged cross-sectional view of the optical disc.
- (B) is an enlarged sectional view of the substrate of the optical disc.
- FIG. 8 is a flowchart showing the operation of the recycling system of FIG.
- FIG. 1 is an overall configuration of an optical disc recycling system according to an embodiment of the present invention.
- FIG. 1 is an overall configuration of an optical disc recycling system according to an embodiment of the present invention.
- (I) is a supplier of the raw material for the synthetic resin substrate (1) of the optical disk (d), and (II) is an optical disk for manufacturing the optical disk (d) from the raw material of the synthetic resin substrate (1).
- a press company (A) is a substrate raw material manufacturing device provided at a predetermined location such as the plant of the raw material supplier (I), and (B), (C) and (D) are plants of the optical disk press contractor (II). And the like, an optical disk manufacturing apparatus, an information recording apparatus, and a substrate collecting apparatus provided at predetermined locations such as the above.
- the substrate raw material production apparatus (A) is for producing a raw material (for example, a polycarbonate resin) of a synthetic resin substrate (1), and is a material for the synthetic resin substrate (1). Is delivered to the optical disk press (II).
- a known apparatus is used for the substrate raw material manufacturing apparatus (A), and is not particularly limited. Further, the substrate raw material production apparatus (A) may be a single apparatus or may be composed of a plurality of apparatuses.
- the optical disk manufacturing apparatus (B) manufactures a synthetic resin substrate (1) from the raw material of the synthetic resin substrate (1), and then, with respect to the synthetic resin substrate (1), the recording layer (2), The optical disc (d) is manufactured by sequentially laminating the reflection layer (3).
- the optical disk manufacturing apparatus (B) a known apparatus is used and is not particularly limited. Further, the optical disc manufacturing apparatus (B) may be a single apparatus or may be composed of a plurality of apparatuses.
- the information recording device (B) records predetermined information such as music information, game information, or video information on the optical disk (d).
- the optical disk (d) on which the predetermined information is recorded is CD-ROMs are shipped to specified shops such as CD shops and personal computer shops.
- the information recording device (B) a known device is used and is not particularly limited. Further, the information recording device (B) may be a single device or may be composed of a plurality of devices.
- the substrate collecting device (D) is provided with an unnecessary optical disc ( d) is polished from the reflective layer side without supplying water using a polishing means (20) so as to be separated from the substrate (1) in powder form, and the polished and separated powder is collected.
- the powder is collected using a powder means (30), and a pure and transparent synthetic resin substrate (1) to which the recording layer (2) and the reflective layer (3) are not adhered is collected.
- the synthetic resin substrate (1) is delivered from the optical disk press (II) to the raw material supplier (I).
- the substrate recovery device (D) is housed in a box (8) about the size of a household microwave oven.
- a substrate storage section (50) for storing the synthetic resin substrate (1) from which the resin has been peeled off is provided.
- An openable and closable lid (9) is provided on the front surface of the box (8), and is rotatable up and down. When the optical disk (d) is stored in the optical disk storage section (10) and the substrate (1) is opened. When collecting the box, the lid (9) is flipped up to open the front of the box (8).
- the optical disk storage section (10) is used for positioning the optical disk (d) in contact with the outer periphery of the optical disk (d) so that a number of optical disks (d) (d). Pillars (11) (11) ... are erected at equal intervals from each other. The positioning pillars (11) (11) are arranged so as to be in contact with the outer circumference of the optical disk (d) in this way, which prevent the lowering of the disk holder (41) of the transport means (40) described later. This is to prevent it.
- the optical disk (d) in the optical disk storage section (10) is to be stored with the synthetic resin substrate (1) facing up.
- the substrate housing part (50) is provided with a base through the center hole of the synthetic resin substrate (1) at the center.
- a plate holding column (51) is erected, and after being polished by the polishing means (20), the recording layer (2) and the reflective layer (3) are conveyed by the conveying means (40) and the recording layer (2) and the reflective layer (3) are polished and peeled off.
- (1) is dropped from above, the substrate holding column (51) is passed through the center hole, and the synthetic resin substrate (1) is held.
- the substrate holding column (51) has a conical upper end, and is relatively inserted into the center hole of the synthetic resin substrate (1).
- the polishing means (20) includes a pair of driving motors (21), (21), and polishing members (24, 24) rotated by the motors (21, 21).
- the (21) is mounted in a suspended state with respect to the support plate (22), and each of the rotating shafts (21a) (21a) projects upward from below the support plate (22).
- a column (23) having a hub (23a) at the upper end to fit into the center hole of the optical disk (d) protrudes. The position where) fits is the polishing position (29).
- a disk-shaped polishing member (24) and a rotating plate (25) for stirring are mounted on a rotating shaft (21a) of the motor (21) via a mounting sleeve (26).
- the polishing member (24) is detachably attached to a disk-shaped support plate (27) integrated with the upper end of the sleep (26) as shown in FIG.
- the polishing member (24) and the disc-shaped support plate (27) each have a plurality of through holes (24a) (24a)..., (27a) (27a). ) Is supposed to fall down below the disk-shaped support plate (27).
- the stirring rotary plate (25) disposed below the R-shaped support plate (27) has a plurality of blades (25b) (25b) projecting from the upper surface of the substrate (25a).
- the stirring rotating plate (25) stirs the upper air, and the through-holes (24a) (24a) of the upper polishing member (24) and the disc-shaped support plate (27).
- ⁇ , (27a) ... The powder falling from (27a) ... is directed to the cavity (31) so that the powder collection by the powder collecting means (30) is performed efficiently.
- powder above and below the substrate (1) was removed by polishing above and below the stirring rotary plate (25). While a body scattering prevention wall (28a) (28b) is provided, a similar powder scattering prevention wall (28c) is provided slightly obliquely above the periphery of the polishing position (29).
- the powder collecting means (30) includes a hollow part (31) provided on the side of the stirring rotary plate (25) and a vacuum pump provided at the tip of the hollow part (31). (32) and a discharge pipe (33) for discharging the sucked powder to the outside of the box (8).
- the discharge pipe (33) is connected to a dust collecting container (not shown) outside the box.
- the transport means (40) transports the optical disk (D) from the optical disk storage part (10) to the polishing position (29) and transports the optical disk (D) from the polishing position (29) to the substrate storage part (50).
- 1) also has a disk holder (41) for holding the optical disk (d) and the synthetic resin substrate (1), and by moving the disk holder (41) up, down, left and right. The above-mentioned conveyance is performed.
- the disc holder (41) has a holder plate (42) having a rubber plate (43) adhered to the surface of the photosynthetic resin substrate (1) at the lower end, and a rubber plate (43) and a holder plate.
- An air flow passage (45) communicating with an air flow hole (44) provided in (42) is provided.
- the first air passage (45) is connected to a suction pipe (46), and the tip of the suction pipe (46) is connected to a vacuum pump (47). By operating the vacuum pump (47), A vacuum is applied between the photosynthetic resin substrate (1) and the rubber plate (43) to adsorb the optical disk (d) or the photosynthetic resin substrate (1) to the rubber plate (43).
- the disk holder (41) is configured to be decelerated by a geared motor (48) and rotate horizontally. In FIG. 3, the disk holder (41) is located above the polishing position (29). However, before starting the substrate recovery device (D), the disk holder (41) is actually located above the optical disk storage section (10). Or above the substrate storage unit (50).
- the lid (9) of the box (8) is opened, and the disk is collected in the optical disk storage section (10).
- a large number of optical disks (d), (D), etc., whose data should be destroyed, are stored.
- the optical discs (d), (D)... are automatically stacked in order.
- FIG. 2 and FIG. 3 show the state.
- the disk holder (41) gradually descends, fitting the center hole of the optical disk (d) into the hub (23a) of the column (23), and polishing the optical disk (d) with the polishing member.
- (24) Lightly press against (24).
- the polishing members (24) (24) driven by the driving motors (21) (21) of the polishing means (20) also rotate, and the protective layer (4) to the reflective layer (3), and further, the recording Polishing is performed on the layer (2), and the material constituting each layer is polished and peeled off from the substrate (1) in powder form.
- the powder generated by the polishing falls down through the through-holes (24a) and (27a) of the polishing member (24) and the disc-shaped support plate (27) and is stirred at the same time as the powder collecting means (30). Sucks the powder and collects it in an external collecting container.
- the powder collected in this dust collecting container is relatively easy to collect gold by performing an appropriate treatment separately. Can be done.
- the disk holder (41) When the polishing of a predetermined thickness is completed, the disk holder (41) is raised while holding the synthetic resin substrate (1), and the center hole of the synthetic resin substrate (1) is moved from the hub (23a) of the column. Let go. As shown in Fig. 3, the raised position is (24) It is sufficient to be located slightly above the upper powder scattering prevention wall (28c). Then, from the raised position, the disk holder (41) moves horizontally to a position above the substrate storing portion (50) while holding the synthetic resin substrate (1), and the center hole of the synthetic resin substrate (1) is moved. When the disk moves to just above the disk substrate holding column (51), the lowering of the disk holder (41) starts, and the center hole of the synthetic resin substrate (1) is aligned with the disk substrate holding column (51).
- the suction pump (47) of the transport means (40) stops, and the suction of the synthetic resin substrate (1) by the disk holder (41) is stopped. Therefore, the synthetic resin substrate (1) falls away from the disk holder (41) so that the disk substrate holding column (51) relatively penetrates through the center hole thereof, and the substrate storage part ( 50). This is a series of operations in the substrate recovery device (I) until the synthetic resin substrate (1) is recovered from one optical disk (d).
- the disk holder (41) When the collection of the synthetic resin substrate (1) from one optical disk (d) is completed in this way, the disk holder (41) is raised to a position where it can be moved horizontally, and then the optical disk storage (10) It moves horizontally once upward. After the disk holder (41) arrives above the disk storage part (10), the disk holder (41) is lowered, the optical disk is sucked in the same manner as before, that is, the one optical disk (d) is removed. A series of operations is performed until the pure and transparent synthetic resin substrate (1) from which the recording layer (2) and the reflective layer (3) have been polished and peeled is collected. This series of operations is repeated for the lowermost one of the stored optical disks (d).
- step is abbreviated as “S”.
- the raw material supplier (I) manufactures a raw material of the synthetic resin substrate (1) by the substrate raw material manufacturing apparatus (A) (S 1), and converts the raw material of the manufactured synthetic resin substrate (1) to the raw material. Delivered to an optical disk press (II) (S2).
- the raw material supplier (I) manufactures the raw material for the synthetic resin substrate (1)
- the raw material for the synthetic resin substrate (1) such as polycarbonate is procured from other sources, and The procured synthetic resin substrate (1) may be delivered as it is to the optical disk press operator (II).
- the optical disk press manufacturer (II) manufactures the synthetic resin substrate (1) from the raw material of the synthetic resin substrate (1) using the optical disk manufacturing apparatus (B), and then manufactures the synthetic resin substrate.
- An optical disc is manufactured by sequentially laminating the recording layer (2) and the reflective layer (3) on (1) (S3).
- the optical disk press trader (II) records predetermined information such as music information, game information or video information using the information recording device (B) (S4), and stores the information as a CD-ROM or the like at a CD shop or a personal computer shop. (S5).
- the optical disk press operator (II) removes the unnecessary optical disk (d) by the substrate collecting device (D) using the polishing means (20) without supplying water to the reflective layer. Polished from the side and peeled off from the substrate (1)
- the powder that has been polished and peeled off is collected using a powder collecting means (30), and a pure and transparent synthetic resin to which the materials constituting the recording layer (2) and the reflective layer (3) are not adhered.
- the substrate (1) is collected (S6).
- the optical disk press supplier (II) delivers the synthetic resin substrate (1) collected in the processing of S6 to the raw material supplier (I) (S7).
- the raw material supplier (I) recycles the synthetic resin substrate (1) supplied from the optical disk press contractor (II) into a ballpoint pen or a personal computer to regenerate the synthetic resin substrate (1) of the optical disk. Used for recycling synthetic resin products such as cases (S 8
- the optical disk presser (II) directly supplies the synthetic resin substrate (1) to the raw material supplier (I), but the synthetic resin substrate (1) is crushed in advance.
- the product may be delivered after performing a predetermined process such as forming a pellet.
- the optical disk press (II) or the company that purchased the optical disk from the press (II) records unfinished information on the optical disk (d), or if the information is incorrectly written,
- the person concerned can easily and surely destroy the data of the optical disk (d) and recover the pure substrate (1) by using the substrate collecting device (D). Therefore, there is no need to ask the discarder to destroy the data on the optical disk (d).
- the substrate of the optical disk (d) is directly delivered from the supplier to the raw material supplier (I), the recycling cost of the optical disk (d) can be reduced. It is possible to do.
- the optical disk press operator (II) records predetermined information on the optical disk (d) by the information recording device (B), and further uses the information recording device (D) to discard the information by the substrate collecting device (D).
- the synthetic resin substrate (1) was to be recovered from the old optical disk (d), but a general contractor who purchased the unrecorded optical disk (d) from the optical disk press contractor (II) performed these processes. It can be No. Industrial potential
- the present invention is a method that can be used in the recycling of optical resin parts in a broad sense including optical disks such as CD-R and CD-ROM as well as so-called magneto-optical disks.
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/521,645 US20060072432A1 (en) | 2002-07-24 | 2003-07-22 | Optical disc recycling method and recycling system |
AU2003281464A AU2003281464A1 (en) | 2002-07-24 | 2003-07-22 | Optical disc recycling method and recycling system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002214834A JP2004050770A (ja) | 2002-07-24 | 2002-07-24 | 光ディスクのリサイクル方法およびリサイクルシステム |
JP2002-214834 | 2002-07-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004009316A1 true WO2004009316A1 (ja) | 2004-01-29 |
Family
ID=30767896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/009296 WO2004009316A1 (ja) | 2002-07-24 | 2003-07-22 | 光ディスクのリサイクル方法およびリサイクルシステム |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060072432A1 (ja) |
JP (1) | JP2004050770A (ja) |
AU (1) | AU2003281464A1 (ja) |
WO (1) | WO2004009316A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1915511A4 (en) * | 2005-06-30 | 2009-12-23 | D3 Inc | DEVICE FOR DESTRUCTION OF OPTICAL DISK |
CN103753730B (zh) * | 2014-01-20 | 2016-05-25 | 北京和升达信息安全技术有限公司 | 光盘分类处理回收装置及方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000285531A (ja) * | 1999-03-31 | 2000-10-13 | Orient Sokki Computer Kk | 光ディスクの基板回収方法 |
US6379224B1 (en) * | 1999-03-31 | 2002-04-30 | Tomoaki Ito | Method of recovering optical disk substrate and optical disk substrate recovering apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3232705B2 (ja) * | 1991-12-05 | 2001-11-26 | ソニー株式会社 | 光学記録ディスクからの樹脂材料の再生方法 |
US5220754A (en) * | 1992-03-02 | 1993-06-22 | Amad Tayebi | Recovered compact disk and a method and an apparatus for recovery thereof |
US5972159A (en) * | 1997-02-28 | 1999-10-26 | Sony Corporation | Optical recording disc recycling method |
US6066229A (en) * | 1997-07-10 | 2000-05-23 | Sony Corporation | Method of recycling disk recording medium and apparatus for recovering metal reflective film |
-
2002
- 2002-07-24 JP JP2002214834A patent/JP2004050770A/ja active Pending
-
2003
- 2003-07-22 WO PCT/JP2003/009296 patent/WO2004009316A1/ja active Application Filing
- 2003-07-22 US US10/521,645 patent/US20060072432A1/en not_active Abandoned
- 2003-07-22 AU AU2003281464A patent/AU2003281464A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000285531A (ja) * | 1999-03-31 | 2000-10-13 | Orient Sokki Computer Kk | 光ディスクの基板回収方法 |
US6379224B1 (en) * | 1999-03-31 | 2002-04-30 | Tomoaki Ito | Method of recovering optical disk substrate and optical disk substrate recovering apparatus |
Also Published As
Publication number | Publication date |
---|---|
AU2003281464A1 (en) | 2004-02-09 |
JP2004050770A (ja) | 2004-02-19 |
US20060072432A1 (en) | 2006-04-06 |
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