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Surface smoothening of plastic material

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Publication number
JPH06128398A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
surface
material
plastic
vapor
low
Prior art date
Application number
JP27876592A
Other languages
Japanese (ja)
Inventor
Tadashi Morita
Yoshikazu Takahashi
正 森田
善和 高橋
Original Assignee
Ulvac Japan Ltd
日本真空技術株式会社
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Abstract

PURPOSE: To smoothen the surface of a plastic material very easily within a short time at low cost by immersing the material in the vapor of an organic solvent.
CONSTITUTION: In order to cover the surface of a plastic material with a thin metallic film (e.g. thin aluminum film) in a uniformly thick even state in mirror- finishing the surface of the plastic material, the surface is previously smoothened in such a way that the plastic material (e.g. acrylic resin) is immersed in the vapor of an organic solvent (e.g. dichloromethane). The surface smoothening can be performed very easily within a short time at a low cost.
COPYRIGHT: (C)1994,JPO&Japio

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、プラスチック材の表面平滑化法に関し、更に詳しくは、プラスチック材の表面にアルミニウム薄膜等の金属薄膜を被覆して鏡面仕上げする際、金属薄膜をプラスチック材表面に均一な厚さで凹凸なく被覆することを可能にするために、プラスチック材の表面を予め平滑化させておくプラスチック材の表面平滑化法に関する。 BACKGROUND OF THE INVENTION This invention relates to a surface smoothing method of a plastic material, more particularly, when the mirror-finished by coating a metal thin film of aluminum thin film or the like on the surface of the plastic material, the plastic material surface a thin metal film in order to be able to irregularities without coating with a uniform thickness on to a surface smoothing method of a plastic material allowed to advance smoothing the surface of the plastic material.

【0002】 [0002]

【従来の技術】プラスチック材の表面にアルミニウム等の金属薄膜を被覆して鏡を製作する場合、基材となるプラスチック材の表面に存在する微小な段差や傷が原因となって鏡の反射率を著しく低下させていた。 Reflectance of the Prior Art When fabricating a surface a thin metal film of aluminum or the like coated on the mirror of the plastic material, by small steps or scratches present on the surface of the plastic material as the base material is caused mirror It was not significantly reduced.

【0003】そこで、プラスチック材の表面を平滑化する手段としては、金型表面の平滑度を高めた金型を用いてプラスチック材を成形する方法、成形されたプラスチック材の表面をナイフ、カッター等の鋭利な刃物で削る方法、或いは該表面を研磨材で研磨する方法が知られている。 [0003] Therefore, as a means of smoothing the surface of the plastic material, a method of molding a plastic material using a mold with enhanced smoothness of the mold surface, the knife a shaped surface of the plastic material, cutter how cut with a sharp knife, or a method of polishing with abrasive the surface are known in the.

【0004】 [0004]

【発明が解決しようとする課題】しかしながら、前記プラスチック材の表面を平滑化手段のうち、金型を用いてプラスチック材を成形する場合は、金型の表面の平滑度を向上させるためには精度の高い金型加工技術を必要とし、コスト高になるという問題があり、また、成形されたプラスチック材の表面を鋭利な刃物で削る方法の場合は、プラスチック材表面に削りゴミが発生したり、或いは削り跡が残りやすいため、表面を均一な平滑面に削り仕上げするには熟練を必要とする問題があり、また、プラスチック材表面を研磨材で研磨する場合は、研磨に長時間を要して作業性が悪いという問題がある。 [SUMMARY OF THE INVENTION However, among the smoothing means a surface of the plastic material, when molding plastic material using a mold, in order to improve the smoothness of the mold surface accuracy require a high mold processing technologies, there is a problem of high cost, also in the case of a method of cutting a shaped surface of a plastic material with a sharp knife, or cutting debris generated in the plastic material surface, or scraping order tends to remain traces, to finishing the surface to a uniform smooth surface has a problem that requires skill, in the case of polishing with abrasive plastic material surface, it takes a long time to polish workability Te there is a problem that bad.

【0005】本発明はかかる問題点を解消し、プラスチック材の表面を低コストで、短時間で極めて容易に平滑化することが出来るプラスチック材の表面平滑化法を提供することを目的とする。 The present invention to solve the above problems, the surface of the plastic material at low cost, and to provide a short period of time at the surface smoothing method of a plastic material that can be very easily smoothed.

【0006】 [0006]

【課題を解決するための手段】本発明のプラスチック材の表面平滑化法は、プラスチック材を有機溶剤の気化した蒸気中に浸漬し、プラスチック材の表面を平滑化することを特徴とする。 Surface smoothing method of the plastic material of the present invention According to an aspect of the plastic material is immersed in the vapor vaporized organic solvent, characterized by smoothing the surface of the plastic material.

【0007】 [0007]

【作用】プラスチック材を有機溶剤の気化した蒸気中に浸漬すると、昇温した有機溶剤蒸気によりプラスチック材表面の一部が溶解して膨潤、または軟化し、プラスチック材表面の微小な傷、段差がなくなって平滑化する。 SUMMARY OF Upon immersing the plastic material in the vapor vaporized organic solvent, heated organic solvent vapor dissolves a portion of the plastic material surface by swelling or softened, the plastic surface micro scratches, a step is to smooth gone.

【0008】 [0008]

【実施例】先ず、本発明法を実施する際に用いる平滑処理装置の1例について説明する。 EXAMPLES First, a description for one example of the smoothing processing apparatus used in practicing the present invention method.

【0009】図1は本発明のプラスチック材の表面を平滑化する際に用いる平滑処理装置の1例であり、図中、 [0009] Figure 1 is an example of a smoothing apparatus used for smoothing the surface of the plastic material of the present invention, in the figure,
1は溶剤浴を示す。 1 shows the solvent bath. 溶剤浴1はその下方にジクロロメタン、アセトン等の有機溶剤2を加熱して気化、蒸発させるためのスチームヒーター、シースヒーター等の加熱装置3を配置し、また、溶剤浴1の上方内側に冷却パイプ4を巻回し、該パイプ4の端部を溶剤浴の外方に配設した循環ポンプ(図示せず)に接続し、該循環ポンプで冷却パイプ4内に一定温度の液体(例えば温度18℃の冷却水)を循環させるようにした。 Dichloromethane solvent bath 1 thereunder, heat vaporizing organic solvent 2 such as acetone, steam heater for evaporating, the heating device 3, such as a sheath heater arranged, also, the cooling pipe above the inside of the solvent bath 1 4 wound, the ends of the pipe 4 is connected to the circulation pump which is arranged outside the solvent bath (not shown), a constant temperature of the liquid in the circulating pump in the cooling pipe 4 (for example, temperature 18 ° C. the cooling water) was set to circulate.

【0010】そして、溶剤浴1の下方で加熱装置3により加熱、昇温されて気化した有機溶剤2の蒸気層5を該有機溶剤2の上方に滞留、形成せしめるようにした。 [0010] Then, the heating by the heating device 3 in the lower solvent bath 1, retention vapor layer 5 of the organic solvent 2 vaporized is heated above the organic solvent 2 were as allowed to form. また、該蒸気が溶剤浴1の開口部6付近に達した時、冷却パイプ4に触れさせて冷却凝縮せしめて液状の有機溶剤として溶剤浴1の下方に落下させ、開口部6より飛散することを防止するようにした。 Further, the vapor is when it reaches the vicinity of the opening 6 of the solvent bath 1, is dropped to below the solvent bath 1 allowed to cool condensed exposed to the cooling pipe 4 as the organic solvent of the liquid, scattering from the opening 6 and so as to prevent.

【0011】次に、前記図1装置を用いてプラスチック材の平滑化の具体例を説明する。 [0011] Next, a specific example of the smoothing of the plastic material using the Figure 1 device.

【0012】実施例1 先ず、溶剤浴1内に有機溶剤2としてジクロロメタンを充填し、加熱装置3でジクロロメタンを温度60℃程度に加熱して所定温度に昇温させて気化させ、ジクロロメタンの蒸気を溶剤浴1の有機溶剤(液状)2の上方に滞留せしめて蒸発層5を形成させた。 [0012] Example 1 First, charged with dichloromethane as the organic solvent 2 in a solvent bath 1, the heating device 3 is heated dichloromethane at about temperature 60 ° C. is vaporized by heating to a predetermined temperature, a vapor of dichloromethane to form a vaporized layer 5 stagnates above the organic solvent (liquid) 2 solvent bath 1. 次に、縦100mm、 Then, vertical 100mm,
横100mm、厚さ5mmのアクリル樹脂製のプラスチック材7を溶剤浴1内に滞留しているジクロロメタンの蒸気層5内に0.5秒浸漬した後、直ちに蒸気層5より溶剤浴1の外方に取り出した。 Horizontal 100 mm, was dipped 0.5 seconds residence to which steam layer 5 of dichloromethane to a thickness of 5mm in the solvent bath 1 plastic material 7 made of acrylic resin, immediately outward of the solvent bath 1 above the vapor layer 5 It was taken out.

【0013】本発明の平滑化法は前記実施例のみに限定されるものではなく、プラスチック材としてはその表面にアルミニウム、クロミウム等の金属薄膜を被覆することが出来るものであればよく、前記アクリル樹脂の他にABS樹脂、ポリスチレン樹脂等が挙げられる。 [0013] smoothing method of the present invention is not limited to the above embodiment, aluminum as the plastic material the surface, as long as it can be coated with a metal thin film such as chromium, the acrylic in addition to ABS resin of the resin, a polystyrene resin, and the like. また、 Also,
有機溶剤としては気化した蒸気でプラスチック材の表面を容易に溶解せしめて膨潤、或いは軟化させることが出来る溶剤であればよく、前記ジクロロメタンの他にアセトン、トリクロロエチレン等が挙げられる。 The organic solvent brought readily dissolve the surface of the plastic material in the vaporized steam swelling, or may be a solvent which can be softened, acetone, trichlorethylene, and the like in addition to the dichloromethane.

【0014】また、プラスチック材の有機溶剤の気化した蒸気層内への浸漬する時間はプラスチック材の材質、 Further, the time the material of the plastic material for immersion in a vaporized vapor layer of the organic solvent of the plastic material,
形状、および用いる有機溶剤の種類に応じて適宜設定すればよく、プラスチック材がABSで、有機溶剤がトリクロロエチレンの場合は0.5〜5秒程度、また、プラスチック材がポリスチレンで、有機溶剤がアセトンの場合は0.5〜5秒程度とすればよい。 Shape, and used may be appropriately set according to the type of the organic solvent, a plastic material is ABS, 0.5 to 5 seconds for the organic solvent is trichlorethylene, also plastic material polystyrene, an organic solvent is acetone for it may be about 0.5 to 5 seconds.

【0015】次に、本発明法のプラスチック材の表面の平滑化を確認するために次のような実験を行った。 Next, the following experiment was performed to confirm the smooth surface of the plastic material of the present invention method.

【0016】実験例1 前記実施例1で表面が平滑化されたプラスチック材を真空処理室内の上方に載置し、真空処理室の下方に配置せるカソード上にアルミニウム材をターゲットとして載置し、DCマグネトロンスパッタ法でスパッタリングして図2に示すような、該プラスチック材7の表面に膜厚1 [0016] The plastic material of which the surface is smoothed in Experimental Example 1 Example 1 was placed above the vacuum processing chamber, the aluminum material is placed as a target on the cathode causes disposed below the vacuum processing chamber, as shown in FIG. 2 by sputtering with a DC magnetron sputtering method, film thickness 1 on the surface of the plastic material 7
000Åのアルミニウム薄膜8を付着させて、これを試料1とした。 By adhering aluminum film 8 of 000A, which was used as a sample 1. 尚、スパッタ中は真空処理室内をアルゴンガス雰囲気とし、圧力は3×10 -3 Torrとした。 Note that during sputtering the vacuum processing chamber and an argon gas atmosphere, the pressure was set to 3 × 10 -3 Torr.

【0017】作成された試料1のアルミニウム薄膜面側に波長500nmの可視光を当ててその反射率を測定した。 [0017] to measure the reflectivity against visible light having a wavelength of 500nm to the aluminum thin film surface of the sample 1 was created. 測定した結果を表1に示す。 The measurement results are shown in Table 1.

【0018】尚、反射率の測定は自己分光光度計323 [0018] The measurement of the reflectance self spectrophotometer 323
型(株式会社日立製作所製)を用いて測定した。 It was measured by using a mold (manufactured by Hitachi, Ltd.).

【0019】実験例2 縦100mm、横100mm、厚さ5mmのアクリル樹脂製のプラスチック材の表面をNo.2000 エメリー研磨紙(SANK [0019] Experimental Example 2 Vertical 100 mm, horizontal 100mm, No.2000 emery paper surface of the acrylic resin plastics material having a thickness of 5 mm (SANK
YO RIKAGAKU Co.LTD製)で研磨し、表面に肉眼で分かる程度の細かい傷を多数つけた。 Polished with YO made RIKAGAKU Co.LTD), gave a large number of fine scratches enough to be seen with the naked eye on the surface.

【0020】続いて、該傷付きプラスチック材を、図1 [0020] Subsequently, the 該傷 with plastic material, as shown in FIG. 1
装置の加熱装置3で所定温度(温度60℃)に加熱、気化して、溶剤浴1内に滞留したジクロロメタンの蒸発層5内に0.5秒間浸漬した後、直ちに蒸気層5より溶剤浴1の外方に取り出して、平滑化処理を施した。 Heated by the heating device 3 of the apparatus to a predetermined temperature (temperature 60 ° C.), it is vaporized, after immersion 0.5 seconds evaporated layer 5 dichloromethane staying in a solvent bath 1, immediately the solvent bath than the vapor layer 5 1 It is taken out of the outward, was subjected to a smoothing process.

【0021】そして、平滑化処理されたプラスチック材の表面に前記実験例1と同様の方法でアルミニウム薄膜(膜厚1000Å)を付着させて、これを試料2とした。 [0021] Then, the smoothing treated surface of the plastic material deposited was an aluminum thin film (thickness 1000 Å) in the same manner as in Experimental Example 1, which was used as a sample 2.

【0022】作成された試料2のアルミニウム薄膜面側に波長500nmの可視光を当ててその反射率を測定した。 [0022] to measure the reflectivity against visible light having a wavelength of 500nm to the aluminum thin film surface side of the created samples 2. 測定した結果を表1に示す。 The measurement results are shown in Table 1.

【0023】比較実験例1 縦100mm、横100mm値厚さ5mmのアクリル樹脂製のプラスチック材の表面をNo.2000 エメリー研磨紙で研磨し、表面に肉眼で分かる程度の細かい傷を多数つけた。 [0023] Comparative Experiment 1 vertical 100mm, lateral 100mm NeAtsu of 5mm the surface of acrylic resin plastic material and polished with No.2000 emery paper, gave a large number of fine scratches enough to be seen with the naked eye on the surface.

【0024】そして、該傷付きプラスチック材の表面に前記実験例1と同様の方法でアルミニウム薄膜(膜厚1 [0024] Then, an aluminum thin film in the same manner as in Experimental Example 1 on the surface of the 該傷 with plastic material (thickness 1
000Å)を付着させて、これを試料3とした。 000A) by adhering, which was used as a sample 3.

【0025】作成された試料3のアルミニウム薄膜面側に波長500nmの可視光を当ててその反射率を測定した。 [0025] to measure the reflectivity against visible light having a wavelength of 500nm to the aluminum thin film surface of the sample 3 was created. 測定した結果を表1に示す。 The measurement results are shown in Table 1.

【0026】対比実験例 鏡面研磨したシリコンウェハーの表面に前記実験例1と同様の方法でアルミニウム薄膜(膜厚1000Å)を付着させて、これを試料4とした。 [0026] The deposited was an aluminum thin film (thickness 1000 Å) in comparison experiment example mirror-polished surface in Experimental Example 1 In the same manner as the silicon wafer, which was used as a sample 4.

【0027】作成された試料4のアルミニウム薄膜面側に波長500nmの可視光を当ててその反射率を測定した。 [0027] to measure the reflectivity against visible light having a wavelength of 500nm to the aluminum thin film surface of the sample 4 that was created. 測定した結果を表1に示す。 The measurement results are shown in Table 1.

【0028】 [0028]

【表1】 [Table 1]

Figure 000003

【0029】表1より明らかなように、本発明法で平滑化されたプラスチック材の表面は、鏡面研磨したシリコンウェハーと同等の平滑面を有することが確認された。 As is apparent from Table 1, the surface of the smoothed plastic material in the present invention method, to have a silicon wafer equivalent smooth surface was mirror polished was confirmed.

【0030】また、本発明の平滑化法を実施するための装置としては、有機溶剤を気化させ、その蒸気層を滞留させ、その中にプラスチック材を浸漬することが出来る溶剤浴であればよく、また、プラスチック材の表面を平滑化させるにも高度な技術や装置を必要としない。 Further, as an apparatus for carrying out the smoothing method of the present invention, good organic solvent is vaporized, allowed to stay the vapor layer, as long as the solvent bath capable of immersing the plastic material therein , also it does not require advanced technology and equipment to be smooth the surface of the plastic material.

【0031】従って、本発明法では低コストで、短時間で極めて簡単にプラスチック材の表面を平滑化させることが出来る。 [0031] Accordingly, the present invention method at a low cost in a short time very easily the surface of the plastic material can be smoothed.

【0032】本発明法で表面が平滑化されたプラスチック材の用途としては、前記実験例で行ったようなプラスチック材の表面にアルミニウム薄膜等の金属薄膜をスパッタ法、或いは蒸着法で被覆形成した高反射率鏡、平滑な表面を備える光輝面組成体である。 [0032] Applications of plastic material whose surface is smoothed by the present invention method, a sputtering method a thin metal film of aluminum thin film or the like on the surface of the plastic material, such as was done in the experimental example, or coated formed by vapor deposition high reflectivity mirror, a bright surface composition member having a smooth surface.

【0033】また、本発明法で平滑化されたプラスチック材の表面に被覆された金属薄膜とプラスチック材とは良好な付着力を有し、プラスチック材と被覆される金属薄膜との付着力の改善にも役立つ。 Further, the coated metal thin film and the plastic material to the surface of the smoothed plastic material in the present invention method have good adhesion, improved adhesion between the metal thin film to be coated with plastic material also help.

【0034】 [0034]

【発明の効果】このように本発明のプラスチック材の表面平滑化法によるときは、気化した有機溶剤の蒸気中にプラスチック材を浸漬するようにしたので、プラスチック材の表面が有機溶剤の昇温した蒸気に接して溶解、軟化して微小な傷や段差がなくなるため、低コストで、短時間でプラスチック材の表面を極めて簡単に平滑化することが出来て、その後、表面に金属薄膜を形成する場合、金属薄膜を凹凸なく均一な膜厚で被覆することが出来る等の効果がある。 When according to the present invention the surface smoothing method of the plastic material of the present invention as described above, since the so immersing the plastic material in the vapor of the vaporized organic solvent, the surface of the plastic material is an organic solvent heating dissolved in contact with the steam, for small scratches and stepped softened is eliminated, at low cost, and can be very easily smooth the surface of the plastic material in a short time, then forming a metal thin film on the surface to case, there are effects such as can be coated with a metal thin film with a uniform film thickness without irregularities.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 本発明法を実施するための装置の1例を示す説明線図、 [1] Description diagram showing an example of an apparatus for carrying out the present invention method,

【図2】 本発明法で平滑化されたプラスチック材の表面にアルミニウム薄膜を形成した状態の模式図。 Figure 2 is a schematic view of a state in which the surface of the smoothed plastic material in the present invention method to form an aluminum thin film.

【符号の説明】 2 有機溶剤、 5 有機溶剤の蒸気、 7 プラスチック材。 [Reference Numerals] 2 organic solvent, 5 organic solvent vapors, 7 plastic material.

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 プラスチック材を有機溶剤の気化した蒸気中に浸漬し、プラスチック材の表面を平滑化することを特徴とするプラスチック材の表面平滑化法。 1. A plastic material is immersed in the vapor vaporized organic solvent, a surface smoothing method of a plastic material, characterized in that to smooth the surface of the plastic material.
JP27876592A 1992-10-16 1992-10-16 Surface smoothening of plastic material JPH06128398A (en)

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JP2005523177A (en) * 2002-04-17 2005-08-04 ストラッタシス, インコーポレイテッド Smoothing method for layered laminated modeling
JP2007016076A (en) * 2005-07-05 2007-01-25 Lintec Corp Highly smooth film, method for producing the same, sheet for forming protective layer for optical recording medium and optical recording medium
JP2009024133A (en) * 2007-07-23 2009-02-05 Technical Research & Development Institute Ministry Of Defence Method for chemically smoothening material and device therefor
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US8075300B2 (en) 2008-06-30 2011-12-13 Stratasys, Inc. Vapor smoothing surface finishing system
US8765045B2 (en) 2007-01-12 2014-07-01 Stratasys, Inc. Surface-treatment method for rapid-manufactured three-dimensional objects

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JP2005523177A (en) * 2002-04-17 2005-08-04 ストラッタシス, インコーポレイテッド Smoothing method for layered laminated modeling
US8123999B2 (en) 2002-04-17 2012-02-28 Stratasys, Inc. Smoothing method for layered deposition modeling
JP2007016076A (en) * 2005-07-05 2007-01-25 Lintec Corp Highly smooth film, method for producing the same, sheet for forming protective layer for optical recording medium and optical recording medium
US8014889B2 (en) 2005-10-13 2011-09-06 Stratasys, Inc. Transactional method for building three-dimensional objects
US8765045B2 (en) 2007-01-12 2014-07-01 Stratasys, Inc. Surface-treatment method for rapid-manufactured three-dimensional objects
JP2009024133A (en) * 2007-07-23 2009-02-05 Technical Research & Development Institute Ministry Of Defence Method for chemically smoothening material and device therefor
US8075300B2 (en) 2008-06-30 2011-12-13 Stratasys, Inc. Vapor smoothing surface finishing system
JP2010106929A (en) * 2008-10-29 2010-05-13 Kanto Chem Co Inc Method for reinforcing transparent vinyl chloride tube

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