JP3153882B2 - Method for removing decorative part from decorated resin-made flat molded product and method for recycling decorative resin flat molded product - Google Patents
Method for removing decorative part from decorated resin-made flat molded product and method for recycling decorative resin flat molded productInfo
- Publication number
- JP3153882B2 JP3153882B2 JP27098692A JP27098692A JP3153882B2 JP 3153882 B2 JP3153882 B2 JP 3153882B2 JP 27098692 A JP27098692 A JP 27098692A JP 27098692 A JP27098692 A JP 27098692A JP 3153882 B2 JP3153882 B2 JP 3153882B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- molded product
- decorative
- flat molded
- recycling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacturing Optical Record Carriers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は装飾を施した樹脂製平板
状成形品から加飾部を除去する方法および装飾樹脂製平
板状成形品のリサイクル方法に関するもので、特にレー
ザーディスクやコンパクトディスクから塗装、蒸着或い
はメッキされた装飾部分を機械的に除去する方法ならび
にそれら成形品をリサイクルする方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing a decorative portion from a decorated resin-made flat molded product and a method for recycling a decorative resin flat molded product. The present invention relates to a method for mechanically removing a painted, vapor-deposited or plated decorative portion and a method for recycling such molded articles.
【０００２】[0002]
【従来の技術および問題点】最近、環境保護、資源の有
効活用等を目的として素材の再生、リサイクルについて
種々検討されているが、レーザーディスクやコンパクト
ディスクにおいては、樹脂成形品上にデータを記憶させ
るべき金属層、さらにその上に金属層を保護するための
塗装が施されており、それら製品をそのまま粉砕し再利
用しても、加飾部の金属が再生された樹脂材料に含まれ
るため、樹脂材料が分解し再生品の機械的な性能および
表面外観が著しく劣る。2. Description of the Related Art Recently, various studies have been made on the recycling and recycling of materials for the purpose of environmental protection, effective use of resources, etc. However, in the case of laser discs and compact discs, data is stored on resin molded products. The metal layer to be made, and furthermore, a coating to protect the metal layer is applied on it, and even if those products are crushed and reused as they are, the metal of the decorative part is included in the recycled resin material As a result, the resin material is decomposed, and the mechanical performance and surface appearance of the regenerated product are remarkably inferior.
【０００３】このため、レーザーディスクやコンパクト
ディスクの再利用にあたっては、予め加飾部を除去する
ことが必要となる。この様な加飾部を除去する方法とし
ては、溶剤による剥離が考えられるが、樹脂材料により
溶剤の膨潤度が異なり、利用すべき溶剤の種類が増す、
また樹脂材料そのものが二種以上の材料から構成されて
いる場合、用いる溶剤が複雑となる、さらにベースポリ
マー、加飾部および溶剤の三成分から溶剤分離または除
去等が必要となり、却って環境衛生上、問題が生じ、好
ましくない。[0003] Therefore, when a laser disk or a compact disk is reused, it is necessary to remove the decorative portion in advance. As a method of removing such a decorative portion, peeling with a solvent can be considered, but the degree of swelling of the solvent differs depending on the resin material, and the type of solvent to be used increases.
When the resin material itself is composed of two or more kinds of materials, the solvent to be used becomes complicated, and it is necessary to separate or remove the solvent from the three components of the base polymer, the decorative part and the solvent. This causes problems and is not preferred.
【０００４】また、装飾樹脂成形品の加飾部を機械的に
剥離する方法も考えられるが、レーザーディスクやコン
パクトディスクそのものの製品厚みが非常に薄いため、
剥離が十分でなかったり、逆に樹脂層まで除去すること
となり、再利用の効率が低下する。A method of mechanically peeling off the decorative portion of the decorative resin molded product is also considered. However, since the product thickness of the laser disk or the compact disk itself is extremely small,
The peeling is not sufficient, or the resin layer is removed on the contrary, and the efficiency of reuse is reduced.
【０００５】以上の背景から、樹脂製平板状成形品、特
にレーザーディスクやコンパクトディスクの如き厚みの
薄い平板上の装飾樹脂成形品のリサイクルについて鋭意
研究した結果、本発明に到達したものである。[0005] From the above background, the present inventors have arrived at the present invention as a result of earnestly studying the recycling of flat resin molded products made of resin, particularly, decorative resin molded products on thin flat plates such as laser disks and compact disks.
【０００６】即ち本発明は、装飾を施した樹脂製平板状
成形品に＃１０〜＃１００の研磨材と直圧式サンドブラ
スト装置を用い、加工圧力：２〜２０Ｋｇ／ｃｍ2 の条
件下で、成形品表面の加飾部を剥離、除去する装飾を施
した樹脂製平板状成形品から加飾部を除去する方法およ
び加飾部除去の成形品を、成形材料として再利用する樹
脂製平板状成形品のリサイクル方法を提供するものであ
る。In other words, the present invention relates to a method in which a decorative resin-made flat plate-shaped molded product is provided with abrasives # 10 to # 100 and a direct pressure type sandblaster.
Using the scan winding devices, processing pressure: under the conditions of 2~20Kg / cm 2, a method of removing the decorative portion decorating portion of the molded article surface release, of a resin plate-like molded article decorated to remove Another object of the present invention is to provide a method of recycling a resin-made flat molded product in which a molded product from which a decorative portion is removed is reused as a molding material.
【０００７】本発明について更に詳しく説明すると、樹
脂成形品を構成する樹脂材料としては特に制限はなく、
すでにレーザーディスクやコンパクトディスクのベース
ポリマーとして用いられているポリメチルメタアリレー
ト、ポリグルタルイミド、ポリカーボネートをはじめ、
ポリスチレン（ＰＳ）、スチレン−アクリロニトリル共
重合体（ＡＳ）、ゴム強化スチレン樹脂（ＨＩＰＳ）、
ＡＢＳ樹脂、ＡＥＳ樹脂、ＡＡＳ樹脂、ＡＣＳ樹脂等の
スチレン系樹脂、ポリエステル樹脂、ポリアミド樹脂、
ポリフェニレンエーテル樹脂、ポリアセタール樹脂、お
よびそれらの混合物（アロイ）等々が例示される。The present invention will be described in further detail. The resin material constituting the resin molded product is not particularly limited.
Including polymethyl methallylate, polyglutarimide, polycarbonate, which are already used as base polymers for laser discs and compact discs,
Polystyrene (PS), styrene-acrylonitrile copolymer (AS), rubber-reinforced styrene resin (HIPS),
ABS resin, AES resin, AAS resin, styrene resin such as ACS resin, polyester resin, polyamide resin,
Examples thereof include polyphenylene ether resins, polyacetal resins, and mixtures (alloys) thereof.
【０００８】装飾に用いられる塗料、蒸着、メッキにつ
いても特に制限はなく、樹脂同様すでにレーザーディス
クやコンパクトディスクに用いられている塗料、蒸着、
メッキを対象とすることができる。例えばウレタン系塗
料、エポキシ系塗料、アクリル系塗料、真空蒸着、イオ
ン蒸着、スパッタリング、電気メッキ、化学メッキ、ス
タンピングなどが挙げられる。There are no particular restrictions on the paint, vapor deposition, and plating used for decoration, and the paint, vapor deposition,
Plating can be targeted. For example, urethane-based paint, epoxy-based paint, acrylic-based paint, vacuum evaporation, ion evaporation, sputtering, electroplating, chemical plating, stamping and the like can be mentioned.
【０００９】研摩材の粒径は＃１０〜＃１００である。
＃１０〜＃１００の値は、日本工業規格で表される、メ
ッシュ番号であり、具体的には、ブラスト粒子が１００
％通過する標準ふるいの粒径が３３６０μ〜２００μで
ある。粒径が＃１０未満、即ち３３６０μを越す粒径で
は、装飾部の剥離にバラツキが生じ、時に成形品が割れ
に至ることがあり、通常の作業条件ではうまく剥離出来
ない。一方＃１００を越す、即ち粒径が２００μ未満で
は、装飾部の剥離に長時間を要し、実用的でない。The particle size of the abrasive is # 10 to # 100.
The values of # 10 to # 100 are mesh numbers represented by Japanese Industrial Standards.
% Of the standard sieve has a particle size of 3360μ to 200μ. When the particle size is less than # 10, that is, when the particle size exceeds 3360 μm, the decorative portion may vary in peeling, and sometimes the molded product may be cracked. On the other hand, if it exceeds # 100, that is, if the particle size is less than 200 μm, it takes a long time to peel the decorative portion, which is not practical.
【００１０】研摩材としては、樹脂粒子、クルミ粒子、
無機粒子、金属粒子等の公知物質が挙げられる。これら
は一種、または二種以上用いることが出来る。As abrasives, resin particles, walnut particles,
Known substances such as inorganic particles and metal particles are exemplified. These can be used alone or in combination of two or more.
【００１１】加工圧力は２〜２０ｋｇ／ｃｍ2 、好まし
くは２〜１０ｋｇ／ｃｍ2 である。２ｋｇ／ｃｍ2 未満
では長時間の噴射を要し、金属層や塗装膜の厚いものの
除去が可である。又、２０ｋｇ／ｃｍ2 を越す圧力で
は、研摩材の噴射等による衝突エネルギーによって成形
品表面が発熱し、溶融したり或いは割れながら溶融する
といった現象が生じ、好ましくない。The working pressure is 2 to 20 kg / cm 2 , preferably 2 to 10 kg / cm 2 . If it is less than 2 kg / cm 2 , long-time spraying is required, and a thick metal layer or a thick coating film can be removed. On the other hand, if the pressure exceeds 20 kg / cm 2 , the surface of the molded product is heated by collision energy due to the injection of the abrasive and the like, and a phenomenon that the molded product is melted or cracked and melted is not preferable.
【００１２】なお、ブラスト粒子内衝突による発熱は、
ブラストの噴射ノズルと成形品表面との角度に関係し、
ブラストノズルの方向と、樹脂成形品表面（剥離対象の
加飾部表面）との角度を７０°以下とすることが好まし
い。成形品表面に対し、７０°を越す角度でブラスト粒
子が衝突すると、噴射時の加工圧力を低くしても装飾部
が剥離する前に成形品が加熱され、溶融する場合があ
る。The heat generated by the collision within the blast particles is:
Related to the angle between the blast injection nozzle and the surface of the molded product,
It is preferable that the angle between the direction of the blast nozzle and the surface of the resin molded product (decoration portion surface to be peeled) is 70 ° or less. If the blast particles collide with the surface of the molded product at an angle exceeding 70 °, the molded product may be heated and melted before the decorative portion is peeled off even if the processing pressure at the time of injection is reduced.
【００１３】サンドブラスト装置としては、圧力空気で
研摩材を成形品表面に吹きつける、重力式または、直圧
式が好ましく、他の方法、例えば投射式では、剥離の効
率が著しく劣り、実用上好ましくない。The sandblasting apparatus is preferably a gravity type or a direct pressure type in which an abrasive is blown onto the surface of a molded article by pressurized air, and other methods, for example, a projection type, are inferior in peeling efficiency and are not practically preferable. .
【００１４】以下にコンベア方式による直圧式サンドブ
ラスト装置を用いて、レーザーディスクとコンパクトデ
ィスクでの実施例を説明する。An embodiment using a laser disk and a compact disk using a direct pressure type sand blasting device based on a conveyor system will be described below.
【００１５】実施例 樹脂成形品 レーザーディスク ： ポリメチルメタアクリレート
樹脂製で表面に金属層、さらにその表面にアクリル塗装
を施している市販のレーザーディスク コンパクトディスク ： ポリカーボネート樹脂製で
表面に金属層、さらにその表面にアクリル塗装を施して
いる市販のコンパクトディスク 直圧式サンドブラスト装置 仕様 タイプ ： コンベアー式 ブラスト材の噴射ノズル ： ５ｍｍ径×６本 ＣＤの吸着 ： パット方式のローデングタイプ コンベアー送り速度 ： 可変 ノズル振動 ： ９０ＣＭExample Resin molded product Laser disk: A commercially available laser disk made of polymethyl methacrylate resin and having a metal layer on the surface, and an acrylic coating on the surface Compact disk: Polycarbonate resin made of a metal layer on the surface its commercial compact disc direct pressure Sandobura be sampled device is subjected to acrylic paint to the surface specifications type: conveyor blasting material injection nozzle: 5mm diameter × six CD adsorption: Padded scheme low dengue type conveyor feed speed: variable Nozzle vibration: 90CM
【００１６】樹脂成形品に＃７０または５０の研摩材と
上述の直圧式サンドブラスト装置を用い、加工条件（加
工圧力とノズルの角度）を変更し、塗膜またはメッキ膜
を除去した。それぞれの成形品に対する結果を表−１〜
２に示す。Using a # 70 or # 50 abrasive and the above-described direct pressure sandblasting device for the resin molded product, the processing conditions (processing pressure and nozzle angle) were changed, and the coating film or plating film was removed. Table 1 shows the results for each molded product.
It is shown in FIG.
【００１７】処理された成形品を粉砕処理した後、市販
の無着色ポリメチルメタアクリレート樹脂またはポリカ
ーボネー樹脂に配合（再生品の混入率：２０％）し、衝
撃強度（ノッチ付アイゾット、２３℃、１／４インチ厚
み）の保持率および表面外観と色相を評価した。結果を
表−１〜２に示す。After the treated molded product is pulverized, it is blended with a commercially available non-colored polymethyl methacrylate resin or polycarbonate resin (recycled product mixing ratio: 20%), and the impact strength (notched Izod, 23 ° C.) , 1/4 inch thickness) and the surface appearance and hue were evaluated. The results are shown in Tables 1-2.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】[0020]
【発明の効果】特定条件下で処理を行なうことにより、
塗装、蒸着、或いはメッキを施した樹脂製平板上成形品
（レーザーディスクやコンパクトディスクなど）からそ
れら加飾部を効率よく剥離、除去することができ、また
加飾部を除去した樹脂成形品を再利用する事が可能とな
る。By performing the treatment under specific conditions,
The decorative part can be efficiently peeled off and removed from the resin molded flat plate (laser disk, compact disk, etc.) that has been coated, evaporated, or plated. It can be reused.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−25656（ＪＰ，Ａ) 特開 平５−345321（ＪＰ，Ａ) 特開 平３−63942（ＪＰ，Ａ) 特開 平４−360035（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29B 17/00 - 17/02 B24C 1/00 G11B 7/24 - 7/26 531 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-60-25656 (JP, A) JP-A-5-345321 (JP, A) JP-A-3-63942 (JP, A) JP-A-4- 360035 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B29B 17/00-17/02 B24C 1/00 G11B 7/24-7/26 531
Claims (4)
〜＃１００の研磨材と重力式または直圧式サンドブラス
ト装置を用い、加工圧力：２〜２０Ｋｇ／ｃｍ2の条件
下で、成形品表面の加飾部を剥離、除去することを特徴
とする装飾を施した樹脂製平板状成形品から加飾部を除
去する方法。1. A decorative resin-made flat molded product having a size of # 10
Using an abrasive and gravity or direct pressure Sandobura scan <br/> winding device ~ # 100, processing pressure: under the conditions of 2~20Kg / cm 2, that the decorative portion of the molded article surface release, is removed A method of removing a decorative portion from a resin-made flat plate-shaped molded article having a decoration.
〜＃１００の研磨材と重力式または直圧式サンドブラス
ト装置を用い、加工圧力：２〜２０Ｋｇ／ｃｍ2の条件
下で、成形品表面の加飾部を剥離、除去することを特徴
とする装飾を施した樹脂製平板状成形品から加飾部を剥
離、除去してなる成形品を、成形材料として再利用する
ことを特徴とする装飾樹脂製平板状成形品のリサイクル
方法。 2. A decorative resin-made flat plate-shaped molded product having # 10
Using an abrasive and gravity or direct pressure Sandobura scan <br/> winding device ~ # 100, processing pressure: under the conditions of 2~20Kg / cm 2, that the decorative portion of the molded article surface release, is removed A method for recycling a decorative resin flat molded product, comprising reusing, as a molding material, a molded product obtained by peeling and removing a decorative portion from a decorated resin flat molded product characterized by the following: .
ザーディスクまたはコンパクトディスクである請求項１
記載の方法。3. The resin-plated molded article provided with a decoration is a laser disk or a compact disk.
The described method.
ザーディスクまたはコンパクトディスクである請求項２
記載のリサイクル方法。4. The decorated resin flat molded product is a laser disk or a compact disk.
The recycling method described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27098692A JP3153882B2 (en) | 1992-09-14 | 1992-09-14 | Method for removing decorative part from decorated resin-made flat molded product and method for recycling decorative resin flat molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27098692A JP3153882B2 (en) | 1992-09-14 | 1992-09-14 | Method for removing decorative part from decorated resin-made flat molded product and method for recycling decorative resin flat molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0691652A JPH0691652A (en) | 1994-04-05 |
| JP3153882B2 true JP3153882B2 (en) | 2001-04-09 |
Family
ID=17493806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27098692A Expired - Fee Related JP3153882B2 (en) | 1992-09-14 | 1992-09-14 | Method for removing decorative part from decorated resin-made flat molded product and method for recycling decorative resin flat molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3153882B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4403173A1 (en) * | 1994-02-02 | 1995-08-03 | Warner Music Mfg Europa Gmbh | Process for stripping metallized, plate-shaped information carriers |
| DE19640945A1 (en) * | 1996-10-04 | 1998-04-16 | Polygram Manufacturing & Distr | Method and device for mechanically removing a foreign matter coating from a base material |
| JP2011126032A (en) * | 2009-12-15 | 2011-06-30 | Astec Irie Co Ltd | Method for treating plated plastic component with coating film |
-
1992
- 1992-09-14 JP JP27098692A patent/JP3153882B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0691652A (en) | 1994-04-05 |
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