JP2010201355A - Method for removing contamination from plastic surface - Google Patents
Method for removing contamination from plastic surface Download PDFInfo
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- JP2010201355A JP2010201355A JP2009050302A JP2009050302A JP2010201355A JP 2010201355 A JP2010201355 A JP 2010201355A JP 2009050302 A JP2009050302 A JP 2009050302A JP 2009050302 A JP2009050302 A JP 2009050302A JP 2010201355 A JP2010201355 A JP 2010201355A
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- plasticizer
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- 239000004033 plastic Substances 0.000 title claims abstract description 86
- 229920003023 plastic Polymers 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011109 contamination Methods 0.000 title abstract 4
- 239000002783 friction material Substances 0.000 claims abstract description 38
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 239000004014 plasticizer Substances 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 239000004094 surface-active agent Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000000356 contaminant Substances 0.000 claims description 40
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 5
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 239000004431 polycarbonate resin Substances 0.000 claims description 3
- 229920005668 polycarbonate resin Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims 3
- 239000012459 cleaning agent Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
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- 230000001133 acceleration Effects 0.000 description 3
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- -1 polyethylene Polymers 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
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- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004420 Iupilon Substances 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 241000238633 Odonata Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000011354 acetal resin Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
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- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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- 238000002336 sorption--desorption measurement Methods 0.000 description 1
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- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Cleaning In General (AREA)
Abstract
Description
本発明は、プラスチック表面に付着している汚染物を除去する方法に関する。さらに詳しくは、プラスチック表面に付着している水垢や埃、大気中の化学物質、更にはプラスチックが劣化して生じた物質等によって、透明感や光沢が損なわれた状態になったプラスチック製品に対し、プラスチックを傷つけることなく、プラスチック表面からこれらの汚染物を除去し、本来の透明感や光沢を回復させる方法に関するものである。 The present invention relates to a method for removing contaminants adhering to a plastic surface. More specifically, for plastic products whose transparency and luster have been lost due to dirt and dust adhering to the plastic surface, chemical substances in the atmosphere, and substances caused by deterioration of the plastic. The present invention relates to a method for removing these contaminants from the plastic surface without damaging the plastic and restoring the original transparency and gloss.
自動車のヘッドランプ等に使用されるプラスチック製品は、長年の使用で風雨に曝される間に、水垢や埃、大気中の化学物質、プラスチックが劣化して生じた物質等が表面に付着し、透明感や光沢が損なわれた状態になることがある。透明感や光沢を回復させるには、スポンジや布等を用いて拭いたり、洗浄剤で洗浄するのが一般的であるが、プラスチック表面に固着した水垢等を除去するのは極めて困難である。 Plastic products used in automobile headlamps, etc., are exposed to wind and rain after many years of use, and water and dirt, chemical substances in the atmosphere, substances generated by plastic deterioration, etc. adhere to the surface. Transparency and gloss may be impaired. In order to restore transparency and gloss, it is common to wipe with a sponge or cloth, or wash with a cleaning agent, but it is extremely difficult to remove scales adhered to the plastic surface.
また研磨剤を含む洗浄剤や汚れ取り粘土等を使用する方法もあるが、これらの方法では、プラスチック表面を傷つけたり、表面のハードコート層を削り取ってしまうことが多い。その結果、プラスチックの耐候性が失われて劣化が促進され、変色やヘーズが大きくなって透明感や光沢が損なわれ易いという問題がある。 There are also methods using cleaning agents containing abrasives, soil removing clay, etc., but these methods often damage the plastic surface or scrape the hard coat layer on the surface. As a result, there is a problem that the weather resistance of the plastic is lost and deterioration is promoted, discoloration and haze increase, and transparency and gloss are easily impaired.
従ってプラスチック表面を傷つけることなく、プラスチック表面に付着した水垢や埃、大気中の化学物質、プラスチックの劣化物等の汚染物を除去し、本来の透明感や光沢を回復する方法の開発が望まれている。本発明はこのような要望を満足させる手段を提供しようとするものである。 Therefore, it is desirable to develop a method that removes contaminants such as water and dust attached to the plastic surface, chemical substances in the atmosphere, and deteriorated plastic materials without damaging the plastic surface, and restores the original transparency and gloss. ing. The present invention seeks to provide means for satisfying such a need.
本発明者は、プラスチック表面の上記のような汚染物は、ポリマーと可塑剤からなる柔軟な摩擦材で摩擦すると、プラスチック表面から除去され、プラスチックはその透明感や光沢を回復することを見出した。これは消しゴムの作用と同じく、摩擦材から脱離した磨耗片が、汚染物を包含してプラスチック表面から除去することによるものと考えられる。 The present inventors have found that the above-mentioned contaminants on the plastic surface are removed from the plastic surface when rubbed with a soft friction material composed of a polymer and a plasticizer, and the plastic recovers its transparency and gloss. . This is considered to be due to the abrasion pieces detached from the friction material being removed from the plastic surface including contaminants, as in the case of the eraser.
しかしこの方法によっても、回復される透明感や光沢は、時としてプラスチック本来の透明感や光沢には及ばないことがある。またこの方法で透明感や光沢を回復させたプラスチックは、そのままでは短時間で再び透明感や光沢を失うことが判明した。本発明者はこれらの原因を探求した結果、磨耗片や摩擦材の可塑剤がプラスチック表面に残っていることによることを見出した。これらは透明感や光沢を損なうばかりで無く、プラスチックと反応して短時間で透明感や光沢を悪化させる。そして摩擦材で汚染物を除去したのち、洗浄剤で洗浄したり、布帛で拭って磨耗片や可塑剤を除去すると、プラスチックは本来の透明感や光沢を回復し、且つ長期間に亘ってそれを維持することができる。 However, even with this method, the transparency and gloss restored can sometimes be less than the original transparency and gloss of plastic. It has also been found that plastics that have been restored to their transparency and gloss by this method lose their transparency and gloss again in a short time. As a result of searching for these causes, the present inventor has found that the wear piece and the plasticizer of the friction material remain on the plastic surface. These not only impair transparency and gloss, but also react with plastic to deteriorate transparency and gloss in a short time. After removing the contaminants with the friction material, cleaning with a cleaning agent, or wiping with a cloth to remove the wear pieces and plasticizer, the plastic will recover its original transparency and gloss, and it will remain for a long time. Can be maintained.
本発明はこのような知見に基づいて達成されともので、本発明によればポリマーと可塑剤からなる柔軟な組成物からなる摩擦材で、表面に汚染物が付着しているプラスチックを摩擦して、摩擦材の一部を磨耗片として脱離させると共に、該汚染物を磨耗片で包含してプラスチックから脱離させ、次いでプラスチックから表面に残存している磨耗片や摩擦材から移行した可塑剤などを、洗浄剤で洗浄したり、布帛で摩擦して除去することにより、プラスチック表面に付着している汚染物を容易に除去することができる。 Since the present invention is achieved based on such knowledge, according to the present invention, a friction material made of a flexible composition composed of a polymer and a plasticizer is used to rub a plastic having contaminants on its surface. , A part of the friction material is detached as a wear piece, and the contaminant is included in the wear piece to be detached from the plastic, and then the plasticizer is transferred from the wear piece and the friction material remaining on the surface from the plastic. Etc. can be easily removed by washing with a cleaning agent or rubbing with a cloth to remove contaminants adhering to the plastic surface.
本発明方法によれば、プラスチックを傷つけることなく、プラスチック表面の水垢等の汚染物を除去し、本来の透明感や光沢を容易に回復することができる。 According to the method of the present invention, contaminants such as scale on the plastic surface can be removed without damaging the plastic, and the original transparency and gloss can be easily recovered.
汚染物除去の対象となるプラスチック製品
本発明は常用のプラスチック製品に広く適用することができる。具体的には塩化ビニル樹脂、アクリル樹脂、スチロール樹脂、ポリエチレン、ポリプロピレン、ポリアミド樹脂、ポリカーボネート樹脂、アセタール樹脂、ポリエステル樹脂、ポリフェニレンエーテル樹脂等の熱可塑性樹脂や、フェノール樹脂、ユリア樹脂、メラミン樹脂、アルキド樹脂、不飽和ポリエステル樹脂、ケイ素樹脂、ポリウレタン樹脂、エポキシ樹脂等の熱硬化樹脂等からなる製品が挙げられる。またこれらのプラスチックからなる所謂プラスチックアロイからなる製品も挙げられる。さらには表面にハードコートや塗装、コーティング、トップコート等の表面処理が施された製品にも適用できる。
Plastic products to be subjected to contaminant removal The present invention can be widely applied to ordinary plastic products. Specifically, thermoplastic resins such as vinyl chloride resin, acrylic resin, styrene resin, polyethylene, polypropylene, polyamide resin, polycarbonate resin, acetal resin, polyester resin, polyphenylene ether resin, phenol resin, urea resin, melamine resin, alkyd Examples include products made of thermosetting resins such as resins, unsaturated polyester resins, silicon resins, polyurethane resins, and epoxy resins. Moreover, the product which consists of what is called a plastic alloy which consists of these plastics is also mentioned. Furthermore, the present invention can also be applied to products whose surfaces are subjected to surface treatment such as hard coat, painting, coating, top coat and the like.
これらのなかでも熱可塑性樹脂からなる製品、特に透明感や光沢が求められる製品に適用するのが好ましい。例えば風雨に曝されて汚染物が付着し、透明感が低下したポリカーボネート製の自動車のヘッドランプは、本発明方法により容易に本来の透明感を回復させることができる。 Among these, it is preferable to apply to products made of a thermoplastic resin, particularly products that require transparency and gloss. For example, a polycarbonate automobile headlamp that has been exposed to wind and rain to which contaminants have adhered and its transparency has been lowered can easily recover its original transparency by the method of the present invention.
摩擦材
本発明で使用する摩擦材は、ポリマーに可塑剤を混練した柔軟な組成物であるゴム状弾性体からなるものである。その代表的なものとしては、ポリ塩化ビニル樹脂にフタル酸エステル系可塑剤を配合した，いわゆる消しゴムが挙げられる。また生ゴムやスチレン−ブタジエン共重合体等のゴムに軟化剤や可塑剤などを配合したものも挙げられる。なお消しゴムには研磨剤などを含有させたものもあるが、このようなものでプラスチックを摩擦すると表面を傷つけ易いので、本発明で用いる摩擦材は、通常は研磨剤などは含有していない。
Friction material The friction material used in the present invention comprises a rubber-like elastic body which is a flexible composition in which a plasticizer is kneaded with a polymer. A typical example is a so-called eraser in which a polyvinyl chloride resin is blended with a phthalate ester plasticizer. In addition, rubbers such as raw rubber and styrene-butadiene copolymer may be blended with a softener or a plasticizer. Some erasers contain an abrasive or the like. However, the friction material used in the present invention does not usually contain an abrasive or the like because the surface is easily damaged when the plastic is rubbed with such an eraser.
摩擦材の硬さは、ＪＩＳ Ｋ−６２５３で１０〜８０であるのが好ましい。硬さが高すぎると、プラスチック表面を摩擦したときにその表面を傷つける恐れがある。また磨耗片が生成し難いので、汚染物の除去がなかなか進行しない。逆に硬さが低すぎると、磨耗片の生成は容易であるが、磨耗片がプラスチック表面に付着し易く、好ましくない。摩擦材の硬さは、ＪＩＳ Ｋ−６２５３で１５〜３５であるのがより好ましい。 The hardness of the friction material is preferably 10 to 80 according to JIS K-6253. If the hardness is too high, the plastic surface may be damaged when rubbed. Moreover, since it is difficult to produce wear pieces, removal of contaminants does not easily proceed. On the other hand, if the hardness is too low, the generation of the wear pieces is easy, but the wear pieces tend to adhere to the plastic surface, which is not preferable. The hardness of the friction material is more preferably 15 to 35 according to JIS K-6253.
摩擦材でプラスチック表面を摩擦すると付着している水垢などの汚染物が除去されるのは、摩擦材がこれらの汚染物を吸着して表面から剥離させると同時に、汚染物を吸着した摩擦材が磨耗片となって摩擦材から脱離することによるものと考えられる。すなわち一方ではプラスチック表面の汚染物は磨耗片に包含されて表面から除去され、他方では、摩擦材の表面からは磨耗片が脱離するので、常に新しい表面が露出して、汚染物を吸着する。汚染物の付着しているプラスチックを摩擦材で摩擦すると、この吸着―脱離が反復されて、汚染物が除去される。 When the friction material is rubbed against the plastic surface, dirt and other contaminants are removed. The friction material absorbs these contaminants and separates them from the surface. This is thought to be due to the wear pieces becoming detached from the friction material. That is, on the one hand, the contaminants on the plastic surface are included in the wear pieces and removed from the surface, and on the other hand, the wear pieces are detached from the surface of the friction material, so that a new surface is always exposed and adsorbs the contaminants. . When the plastic on which the contaminant is adhered is rubbed with the friction material, this adsorption-desorption is repeated, and the contaminant is removed.
摩擦材でプラスチック表面を摩擦して表面の汚染物を除去する際の圧力（押付力）は、強すぎるとプラスチックを傷つける恐れがあり、弱すぎると摩耗片がうまく生成せず汚染物の除去が良好に進行しないので、用いる摩擦材や汚染物の付着状況により適宜設定すればよい。通常は０．０５〜７．５ＭＰａ程度の圧力で摩擦すればよい。０．１〜２．５ＭＰａ程度、特に０．２５〜０．７５ＭＰａ程度の圧力で摩擦するのが好ましい。摩擦は、手動でもよく、機械装置を用いてもよい。 The pressure (pressing force) when rubbing the plastic surface with the friction material to remove the contaminants on the surface may damage the plastic if it is too strong, and if it is too weak, the wear pieces will not be generated well and the contaminant will be removed. Since it does not proceed well, it may be set as appropriate depending on the state of adhesion of the friction material and contaminants to be used. Usually, it may be rubbed at a pressure of about 0.05 to 7.5 MPa. It is preferable to rub at a pressure of about 0.1 to 2.5 MPa, particularly about 0.25 to 0.75 MPa. The friction may be manual or a mechanical device may be used.
押付力の測定方法は、重量計の上に成形品を置き、摩擦材を押し当てた時の重量変化を読み取り、この重量変化量を摩擦材の接触面積で除した値を押付力として規定した。 The measuring method of the pressing force is that the molded product is placed on the weighing scale, the weight change when the friction material is pressed is read, and the value obtained by dividing the weight change amount by the contact area of the friction material is defined as the pressing force. .
洗浄剤
摩擦材で摩擦して汚染物を除去したプラスチック表面には、摩擦材から移行した可塑剤が付着しており、また摩耗片も残存しているので、これらを除去することが必要である。これらの付着物が残存したままであると、透明感や光沢を回復させたプラスチクが短時間で再び透明感や光沢を失うようになる。これらの付着物を除去する方法の一つは、プラスチックを界面活性剤を含有する洗浄液で洗浄する。これにより、付着物はプラスチック表面から界面活性剤に包まれて洗浄液中に移行する。
The plastic surface that has been rubbed with a cleaning agent friction material to remove contaminants is attached with plasticizer that has migrated from the friction material, and wear pieces remain, so it is necessary to remove them. . If these deposits remain, the plastic that has recovered its transparency and gloss will lose its transparency and gloss again in a short time. One method for removing these deposits is to wash the plastic with a cleaning solution containing a surfactant. As a result, the deposits are wrapped in the surfactant from the plastic surface and migrate into the cleaning liquid.
界面活性剤としては、摩擦材の成分であるポリマーや可塑剤と親和性のあるものであればよく、通常は家庭用の洗濯用又は台所用の洗剤をもちいればよい。これらの界面活性剤を適宜濃度となるように水に溶解し、スポンジや布帛に含浸させてプラスチックを摩擦すると、プラスチック表面の可塑剤などの付着物が容易に除去され、プラスチックは本来の透明感や光沢を回復する。なお、洗浄剤使用後に水洗いを行い、洗浄剤を完全に除去する。 As the surfactant, any surfactant that has an affinity for the polymer or plasticizer that is a component of the friction material may be used. Usually, a detergent for household washing or kitchen may be used. When these surfactants are dissolved in water to an appropriate concentration and impregnated into a sponge or fabric and the plastic is rubbed, the plastic material and other deposits on the plastic surface are easily removed, and the plastic has an original transparency. And restore gloss. Wash with water after using the cleaning agent to completely remove the cleaning agent.
布帛
付着物を除去するもう一つの簡便な方法としては、プラスチック表面を布帛で拭って、付着物を除去する方法がある。布帛としては付着物がよく取れるように微細繊維からなるものを用いるのが好ましい。例えば直径１〜５μｍ、好ましくは１〜３μｍのポリエステル繊維からなる布帛を用いる。このような微細繊維からなる布帛を用いると、プラスチック表面の可塑剤その他の付着物が毛管力などで繊維の隙間に入り込むので、プラスチック表面から除去される。
As another simple method for removing the fabric deposits, there is a method of removing the deposits by wiping the plastic surface with a fabric. As the fabric, it is preferable to use a fabric made of fine fibers so that the adhered matter can be removed well. For example, a cloth made of polyester fiber having a diameter of 1 to 5 μm, preferably 1 to 3 μm is used. When a fabric made of such fine fibers is used, plasticizers and other deposits on the plastic surface enter the gaps between the fibers due to capillary force or the like, and are thus removed from the plastic surface.
なお洗浄剤で洗浄したり、布帛で拭っても付着物が十分に除去できない場合には、この両方の方法を併用すればよい。例えば洗浄剤で洗浄した後、布帛で拭えば付着物をより完全に除去することができる。 In addition, when washing | cleaning with a washing | cleaning agent or wiping with a cloth does not fully remove deposits, both methods may be used in combination. For example, after washing with a cleaning agent, the deposits can be removed more completely by wiping with a cloth.
以下、本発明について実施例によりさらに詳しく説明するが、本発明はこれらの実施例に限定されるものではない。
＜試験片の作製＞
ポリカーボネート樹脂（三菱エンジニアリングプラスチックス社製／商品名 ユーピロン（登録商標）ＭＬ−３００ 青系透明色、赤系透明色、黄系透明色）から、射出成形によって、５０ｍｍ×９０ｍｍ×２．０ｍｍの樹脂版を成形した。
この樹脂版をサンシャイン・ウエザオメータによる耐候性促進試験に付し、ブラックパネル温度が６３℃、間欠噴霧スプレー（イオン交換水を１２分間噴霧スプレー／６０分間）の条件で、２０００時間処理した。耐候性促進試験により試験片の表面には水垢および表面の劣化物が付着し、外観、へーズ変化率および色差は下記のように変化した。
外観 ヘーズ変化率（％） 色差
青系透明色試験片； 表面が白濁 ２３．７ １５．８
赤系透明色試験片； 表面が白濁 ２７．３ １４．９
黄系透明色試験片； 表面が白濁 ３５．２ １７．３
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these Examples.
<Preparation of test piece>
50 mm x 90 mm x 2.0 mm resin by injection molding from polycarbonate resin (Mitsubishi Engineering Plastics Co., Ltd./trade name Iupilon (registered trademark) ML-300 blue transparent color, red transparent color, yellow transparent color) A plate was formed.
This resin plate was subjected to a weather resistance acceleration test using a sunshine weatherometer, and was treated for 2000 hours under the conditions of a black panel temperature of 63 ° C. and intermittent spray (ion-exchanged water sprayed for 12 minutes / 60 minutes). As a result of the accelerated weather resistance test, scales and surface degradation products adhered to the surface of the test piece, and the appearance, haze change rate, and color difference changed as follows.
Appearance Haze change rate (%) Color difference blue type transparent color test piece; Surface is cloudy 23.7 15.8
Red transparent color test piece; surface is cloudy 27.3 14.9
Yellowish transparent color test piece; surface is cloudy 35.2 17.3
なお、本明細書において外観、ヘーズ変化率及び色差は下記による。
外観；目視による。
ヘーズ変化率； ＪＩＳ Ｋ−７１３６「プラスチック−透明材料のヘーズの求め方」に準拠した測定方法で成形品のヘーズを測定し、未処理の成形品と耐候促進試験後の各洗浄処理した成形品のヘーズの変化量をヘーズ変化率とした。
色差；ＪＩＳ Ｋ−７１０５「プラスチックの光学的特性試験方法」に準拠した測定方法で色差を測定し、未処理の成形品と耐候促進試験後の各洗浄処理した成形品の色差を求めた。
In the present specification, the appearance, haze change rate, and color difference are as follows.
Appearance: Visually.
Rate of change in haze; haze of a molded product is measured by a measurement method in accordance with JIS K-7136 “How to determine haze of a plastic-transparent material”, and an untreated molded product and each washed treated product after a weather resistance acceleration test The amount of change in haze was defined as the haze change rate.
Color difference: The color difference was measured by a measuring method in accordance with JIS K-7105 “Testing method for optical properties of plastic”, and the color difference between the untreated molded product and each washed-treated molded product after the weather resistance acceleration test was determined.
＜摩擦材による摩擦＞
株式会社トンボ鉛筆製のプラスチック字消し「ＭＯＮＯ（商品名） ＰＥ−０１Ａ」を手にもって、試験片の表面を摩擦した。
<Friction with friction material>
The surface of the test piece was rubbed with a plastic eraser “MONO (trade name) PE-01A” made by dragonfly pencil.
＜洗浄剤による洗浄＞
ライオン株式会社製ママレモン（商品名）を市販のポリウレタン製スポンジに染み込ませ、イオン交換水を含ませて十分に泡立てたものを用いて、試験片の表面を洗浄した。
<Cleaning with cleaning agent>
Mama Lemon (trade name) manufactured by Lion Co., Ltd. was soaked in a commercially available polyurethane sponge, and the surface of the test piece was cleaned using a foam which was sufficiently foamed with ion-exchanged water.
＜布帛による摩擦＞
東レ株式会社製クリーニングクロスの「トレシー（商品名）」を用いて、試験片の摩擦した。
<Friction due to fabric>
The test piece was rubbed using “Toraysee (trade name)” of a cleaning cloth manufactured by Toray Industries, Inc.
実施例１〜３
試験片を先ず摩擦材により押付力０．２５〜０．７５ＭＰａで摩擦し、次いで洗浄剤で洗浄した。結果を表１に示す。
Examples 1-3
The test piece was first rubbed with a friction material at a pressing force of 0.25 to 0.75 MPa, and then washed with a cleaning agent. The results are shown in Table 1.
実施例４〜６
試験片を先ず摩擦材により押付力０．２５〜０．７５ＭＰａで摩擦し、次いで乾燥後に布帛で摩擦した。結果を表１に示す。
Examples 4-6
The test piece was first rubbed with a friction material at a pressing force of 0.25 to 0.75 MPa, and then rubbed with a fabric after drying. The results are shown in Table 1.
実施例７〜９
試験片を先ず摩擦材により押付力０．２５〜０．７５ＭＰａで摩擦し、次いで洗浄剤で洗浄し、さらに乾燥後に布帛で摩擦した。結果を表２に示す。
Examples 7-9
The test piece was first rubbed with a friction material at a pressing force of 0.25 to 0.75 MPa, then washed with a cleaning agent, and further dried and rubbed with a fabric. The results are shown in Table 2.
比較例１〜３
試験片を洗浄剤で洗浄した。結果を表３に示す。
Comparative Examples 1-3
The test piece was washed with a cleaning agent. The results are shown in Table 3.
比較例４〜６
試験片を布帛で摩擦した。結果を表３に示す。
Comparative Examples 4-6
The specimen was rubbed with a fabric. The results are shown in Table 3.
参考例７〜９
試験片を摩擦材により押付力１２．５ＭＰａ以上で摩擦し、次いで洗浄剤で洗浄した。結果を表４に示す。
Reference Examples 7-9
The test piece was rubbed with a friction material at a pressing force of 12.5 MPa or more, and then washed with a cleaning agent. The results are shown in Table 4.
表１〜表３との対比から明らかなように、本発明方法によればプラスチック表面の水垢等の汚染物をほぼ完全に除去することができる。 As is clear from comparison with Tables 1 to 3, according to the method of the present invention, contaminants such as scale on the plastic surface can be almost completely removed.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009050302A JP2010201355A (en) | 2009-03-04 | 2009-03-04 | Method for removing contamination from plastic surface |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2009050302A JP2010201355A (en) | 2009-03-04 | 2009-03-04 | Method for removing contamination from plastic surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378981A (en) * | 2021-12-14 | 2022-04-22 | 宁波坚锋新材料有限公司 | Water-carrying porous friction medium and method for cleaning waste plastic |
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| JP3061263U (en) * | 1999-02-05 | 1999-09-17 | 株式会社ナチハマ | Cleaning tool |
| JP3062934U (en) * | 1999-04-09 | 1999-10-15 | 三共理化学株式会社 | Polishing tool for joints |
| JP2002079200A (en) * | 1999-12-14 | 2002-03-19 | Fuji Photo Film Co Ltd | Method and device for removing dust from web |
| JP2008545031A (en) * | 2005-06-30 | 2008-12-11 | シーカ・テクノロジー・アーゲー | Use of the composition to remove silicone compounds |
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| JPS58160564U (en) * | 1982-04-21 | 1983-10-26 | ダスキンフランチヤイズ株式会社 | Cleaning tool handle |
| JPH1189774A (en) * | 1997-09-16 | 1999-04-06 | Sakura Color Prod Corp | Soil remover |
| JP3061263U (en) * | 1999-02-05 | 1999-09-17 | 株式会社ナチハマ | Cleaning tool |
| JP3062934U (en) * | 1999-04-09 | 1999-10-15 | 三共理化学株式会社 | Polishing tool for joints |
| JP2002079200A (en) * | 1999-12-14 | 2002-03-19 | Fuji Photo Film Co Ltd | Method and device for removing dust from web |
| JP2008545031A (en) * | 2005-06-30 | 2008-12-11 | シーカ・テクノロジー・アーゲー | Use of the composition to remove silicone compounds |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378981A (en) * | 2021-12-14 | 2022-04-22 | 宁波坚锋新材料有限公司 | Water-carrying porous friction medium and method for cleaning waste plastic |
| CN114378981B (en) * | 2021-12-14 | 2023-08-22 | 宁波坚锋新材料有限公司 | Water-carrying porous friction medium and method for cleaning waste plastics |
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