JP2007186560A - Paint remover and paint removing sheet - Google Patents
Paint remover and paint removing sheet Download PDFInfo
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- JP2007186560A JP2007186560A JP2006004447A JP2006004447A JP2007186560A JP 2007186560 A JP2007186560 A JP 2007186560A JP 2006004447 A JP2006004447 A JP 2006004447A JP 2006004447 A JP2006004447 A JP 2006004447A JP 2007186560 A JP2007186560 A JP 2007186560A
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Abstract
Description
本発明は、戸建住宅、集合住宅、工場等の建築物における外壁、内壁や、木工家具、建具、工芸品、楽器等の木材や、漁船、旅客船、貨物船、プレジャーボート等の船舶や、航空機、電車、自動車、バス等の車輌や、産業機械等の工業用製品、あるいは、橋梁、標識、遊具等の設備等の垂直面から、水平面下側の表面に形成されてなる仕上げ材及びマーキングフィルムの剥離に適した塗装材剥離剤及び塗装材剥離シートに関するものである。 The present invention is a building such as a detached house, a collective house, a factory, etc. Finishing materials and markings formed on the surface below the horizontal plane from vertical surfaces such as aircraft, trains, cars, buses, industrial products such as industrial machinery, or equipment such as bridges, signs, playground equipment, etc. The present invention relates to a coating material release agent and a coating material release sheet suitable for film peeling.
現在、仕上げ材には、様々な塗装材が使用されている。また、船舶、車輌、工業用製品、設備などのフリートマーキングや、サインの装飾の為に、マーキングフィルムが使用されている。 Currently, various coating materials are used as finishing materials. In addition, marking films are used for fleet marking of ships, vehicles, industrial products, equipment, etc. and for decoration of signs.
その改修の為に、新塗装材を旧塗装材の上に再塗装する場合もあるが、旧塗装材を剥離してから新塗装材を塗装することも行われる。また、マーキングフィルムを剥がし、新しいマーキングフィルムの貼り付けが行われる。 In some cases, a new coating material may be repainted on top of the old coating material for refurbishment, but the old coating material is peeled off before the new coating material is applied. Also, the marking film is peeled off and a new marking film is attached.
塗装材及びマーキングフィルムを剥離する場合には、剥離作業時間の短縮などの観点から、通常、液状剥離剤を塗装材の上から塗布することが一般的に行われている。使用される液状剥離剤としては、塩化メチレンなどを主成分とする液状剥離剤が一般的に使用されている。 When the coating material and the marking film are peeled off, in general, a liquid release agent is generally applied on the coating material from the viewpoint of shortening the peeling work time. As the liquid release agent used, a liquid release agent mainly composed of methylene chloride or the like is generally used.
しかし、塩化メチレンなどの塩素系溶剤は、剥離した廃棄物を焼却処理する時にダイオキシンが発生するなどの環境汚染をもたらす可能性があり、優れた剥離性を有するものの、今後、その使用が制限される可能性がある。 However, chlorinated solvents such as methylene chloride may cause environmental pollution such as dioxins generated when incineration treatment of exfoliated waste, and although it has excellent exfoliation properties, its use will be limited in the future. There is a possibility.
近年、塩素系溶剤からなる剥離剤を使用せず、高圧水洗機などを使用して、物理的な力で塗装材を剥離する方法や、非塩素系溶剤からなる液状剥離剤を使用する剥離方法などが開発されている。 In recent years, without using a release agent composed of a chlorinated solvent, using a high-pressure water washing machine, etc., a method of peeling a coating material with a physical force, or a release method using a liquid release agent made of a non-chlorine solvent Etc. are being developed.
しかし、高圧水洗機などを使用する方法では、水圧に起因する反力等の安全性に注意が必要である。また、非塩素系溶剤からなる剥離剤を使用する方法では、剥離性能の点から、塗装材によっては長時間の養生が必要となる。 However, in a method using a high-pressure washing machine, attention must be paid to safety such as reaction force caused by water pressure. Further, in the method using a release agent composed of a non-chlorine solvent, a long-term curing is required depending on the coating material from the viewpoint of release performance.
以上のような観点から、特許文献１、特許文献２、特許文献３には、プラスチック成形物や金属面の塗膜剥離剤及びその剥離方法などが開示されている。 From the above viewpoints, Patent Document 1, Patent Document 2, and Patent Document 3 disclose a plastic molded product, a coating remover on a metal surface, a method for removing the same, and the like.
なお、本発明者らは、塗装材剥離剤を基材に含浸させた塗装材剥離シートを開発し、これについて特許出願を行った（特願２００４−２０６９５３号、特願２００５−２５８８７４号）。
しかし、特許文献１〜３に記載の方法は、塗膜を剥離する能力を一層高めることは勿論のこと、剥離剤を均一に塗布することが難しく、結果的に、剥離状態にばらつきが発生するという問題があった。また、剥離剤を塗布後、養生する間に剥離剤が蒸発するなどの問題が発生し、その改善なども望まれていた。 However, in the methods described in Patent Documents 1 to 3, it is difficult to apply the release agent uniformly, as well as to further enhance the ability to peel the coating film, resulting in variations in the peeled state. There was a problem. In addition, problems such as evaporation of the release agent during curing after application of the release agent have occurred, and improvements have been desired.
また、塩素系溶剤からなる剥離剤の代替として、非塩素系溶剤からなる剥離剤及び剥離方法が記載されているが、いずれにしろ、液状剥離剤を使用する剥離方法では、例えば船底部などのように、作業者が対象物下方に入り込み、液状剥離剤を塗布する箇所においては、液状剥離剤の滴下や、それに伴う衣服への付着などが起こり、作業性、安全性が極めて悪く、作業効率が低下し、その改善が望まれていた。 In addition, as an alternative to a release agent made of a chlorinated solvent, a release agent made of a non-chlorine solvent and a release method are described, but in any case, in a release method using a liquid release agent, for example, the bottom of a ship, etc. In this way, where the operator enters the lower part of the object and applies the liquid release agent, dripping of the liquid release agent and the accompanying adhesion to clothes occur, resulting in extremely poor workability and safety, and work efficiency. There has been a desire for improvement.
また、例えば、船底部などのように、垂直面から、水平面下側の表面に形成されてなる仕上げ材及びマーキングフィルムの剥離に、塗装材剥離剤を基材に含浸させた塗装材剥離シートを塗装材面に貼り合せた場合、仕上げ材及びマーキングフィルムが膨潤するまで、自重で落下しないように、保持性の安定したシートが望まれていた。 In addition, for example, a coating material release sheet in which a base material is impregnated with a coating material release agent for peeling off a finishing material and a marking film formed on a surface below a horizontal plane from a vertical surface such as a ship bottom. When pasted on the surface of the coating material, a sheet with stable retention has been desired so that the finishing material and the marking film do not fall under their own weight until they swell.
本発明の目的は、垂直面から水平面下側の表面にかけて形成された塗装材及びマーキングフィルムに対する保持性に優れており、また、塗装材及びマーキングフィルムを溶解することなく、可塑化して軟化させ、剥離作業を容易にでき、かつ、環境への悪影響の少ない塗装材剥離剤及び塗装材剥離シートを提供することにある。 The object of the present invention is excellent in the retention of a coating material and a marking film formed from the vertical surface to the surface below the horizontal plane, and is plasticized and softened without dissolving the coating material and the marking film. An object of the present invention is to provide a coating material stripping agent and a coating material stripping sheet that can facilitate the stripping operation and have little adverse effect on the environment.
上記の課題を解決するために、本発明は特許請求の範囲に記載の構成とするものである。 In order to solve the above problems, the present invention is configured as described in the claims.
すなわち、本発明の塗装材剥離剤は、有機溶剤に可溶性有機高分子化合物とチクソトロピー剤とを溶解又は分散させた溶液からなる塗装材剥離剤において、上記溶液の剪断速度１ｒｐｍでの粘度をη１、剪断速度１０ｒｐｍでの粘度をη１０とした場合（測定温度２５℃）の相対粘度η１／η１０を１．２〜１３．０とする。 That is, the coating material release agent of the present invention is a coating material release agent comprising a solution obtained by dissolving or dispersing a soluble organic polymer compound and a thixotropic agent in an organic solvent, and the viscosity of the solution at a shear rate of 1 rpm is η 1. , when the viscosity at a shear rate of 10rpm and eta 10 relative viscosity eta 1 / eta 10 (measured temperature 25 ° C.) and 1.2 to 13.0.
この場合、上記塗装材剥離剤を、実質的にハロゲン系化合物を含まない組成物からなる溶液とする。 In this case, the coating material remover is a solution made of a composition that does not substantially contain a halogen compound.
また、この場合、上記有機溶剤を、沸点１０６℃〜２７８℃である非ハロゲン系高沸点有機溶剤とする。 In this case, the organic solvent is a non-halogen high boiling organic solvent having a boiling point of 106 ° C. to 278 ° C.
また、本発明の塗装材剥離シートは、上記支持体の繊維集合体面に上記塗装材剥離剤を含浸させる。 Moreover, the coating material peeling sheet of this invention impregnates the said coating material peeling agent in the fiber assembly surface of the said support body.
この場合、上記支持体を不織布等の繊維集合体と有機フィルムとからなる複合基材、もしくは、繊維集合体と金属シートとからなる複合基材とする。 In this case, the support is a composite substrate composed of a fiber assembly such as a nonwoven fabric and an organic film, or a composite substrate composed of a fiber assembly and a metal sheet.
また、これらの場合、上記塗装材剥離シートの上記塗装材剥離剤を含浸させた面同士を２枚重ね合わせた構成とする。 In these cases, two surfaces of the coating material release sheet impregnated with the coating material release agent are overlapped.
また、これらの場合、上記支持体に上記塗装材剥離剤を５０〜２０００ｇ／m２含浸させる。 In these cases, the support is impregnated with 50 to 2000 g / m 2 of the coating material remover.
本発明の塗装材剥離剤は、有機溶剤に可溶性有機高分子化合物とチクソトロピー剤とを溶解又は分散させた溶液からなる塗装材剥離剤において、上記溶液の剪断速度１ｒｐｍでの粘度をη１、剪断速度１０ｒｐｍでの粘度をη１０とした場合（測定温度２５℃）の相対粘度η１／η１０が１．２〜１３．０のチクソトロピー性を有するから、垂直面から水平面下側の表面にかけて形成された各種塗装材及びマーキングフィルムに対する保持性に優れている。 The coating material release agent of the present invention is a coating material release agent comprising a solution obtained by dissolving or dispersing a soluble organic polymer compound and a thixotropic agent in an organic solvent. The viscosity of the solution at a shear rate of 1 rpm is η 1 since the relative viscosity eta 1 / eta 10 in the case where the viscosity at speed 10rpm and eta 10 (measurement temperature 25 ° C.) having a thixotropic property of 1.2 to 13.0, formed to extend horizontal lower surface from the vertical plane Excellent retention for various coated materials and marking films.
この場合、上記塗装材剥離剤は、実質的にハロゲン系化合物を含まない組成物からなる塗装材剥離剤であるから、安全で、環境汚染の面においても優れている。 In this case, since the coating material remover is a coating material remover composed of a composition that does not substantially contain a halogen compound, it is safe and excellent in terms of environmental pollution.
また、この場合、上記有機溶剤が沸点１０６℃〜２７８℃である非ハロゲン系高沸点有機溶剤であるから、各種塗装材及びマーキングフィルムに対する優れた軟化性を有する。 In this case, since the organic solvent is a non-halogen high boiling organic solvent having a boiling point of 106 ° C. to 278 ° C., it has excellent softening properties for various coating materials and marking films.
また、本発明の塗装材剥離シートは、上記塗装材剥離剤を支持体に均一に含浸させてあるから、各種塗装材及びマーキングフィルムに対し、均一な剥離性を有する。 Moreover, since the coating material peeling sheet of this invention has impregnated the said coating material peeling agent uniformly to the support body, it has uniform peelability with respect to various coating materials and a marking film.
この場合、上記支持体が不織布等の繊維集合体と有機フィルムとからなる複合基材、もしくは、繊維集合体と金属シートとからなる複合基材であるから、含浸させた塗装材剥離剤の揮発を抑えることができる。 In this case, since the support is a composite substrate composed of a fiber assembly such as a nonwoven fabric and an organic film, or a composite substrate composed of a fiber assembly and a metal sheet, volatilization of the impregnated coating material release agent is performed. Can be suppressed.
また、これらの場合、上記塗装材剥離剤を含浸させた面同士を２枚重ね合わせた構成であり、また、セパレーターを使用していないから、使用時のごみの発生もなく、かつ、２枚ともに使用できるため、極めて好都合である。 Further, in these cases, the two surfaces impregnated with the above-mentioned coating material release agent are superposed on each other, and since no separator is used, there is no generation of dust during use, and two sheets It can be used together, which is very convenient.
また、これらの場合、上記支持体の繊維集合体面に上記塗装材剥離剤を５０〜２０００ｇ／m２含浸させてあるから、各種塗装材及びマーキングフィルムに対する均一な剥離性を有する。 Further, in these cases, the fiber aggregate surface of the support is impregnated with 50 to 2000 g / m 2 of the coating material release agent, so that it has uniform peelability to various coating materials and marking films.
上記目的を達成する為に、発明者らは各種材料・プロセスを検討した結果、有機溶剤に可溶性有機高分子化合物とチクソトロピー剤とを溶解又は分散させた溶液からなる塗装材剥離剤において、上記溶液の剪断速度１ｒｐｍでの粘度をη１、剪断速度１０ｒｐｍでの粘度をη１０とした場合（測定温度２５℃）の相対粘度η１／η１０を１．２〜１３．０とすれば良いことを見出した。 In order to achieve the above object, the inventors have studied various materials and processes, and as a result, in the coating material release agent comprising a solution in which a soluble organic polymer compound and a thixotropic agent are dissolved or dispersed in an organic solvent, When the viscosity at a shear rate of 1 rpm is η 1 and the viscosity at a shear rate of 10 rpm is η 10 (measurement temperature 25 ° C.), the relative viscosity η 1 / η 10 should be 1.2 to 13.0. I found.
また、この場合、上記塗装材剥離剤を、実質的にハロゲン系化合物を含まない組成物からなる溶液とすれば良いことを見出した。 Further, in this case, it has been found that the coating material release agent may be a solution made of a composition that does not substantially contain a halogen compound.
さらに、上記した塗装材剥離剤を支持体に含浸させた塗装材剥離シートとして使用すれば良いことを見出した。この場合、上記支持体に、繊維集合体と有機フィルムとからなる複合基材、もしくは、繊維集合体と金属シートとからなる複合基材を使用し、この支持体の繊維集合体の面に塗装材剥離剤を含浸させた塗装材剥離シートとして使用すれば良いことを見出した。 Furthermore, it discovered that it should just be used as a coating material peeling sheet which made the support body impregnate the above-mentioned coating material peeling agent. In this case, a composite substrate composed of a fiber assembly and an organic film or a composite substrate composed of a fiber assembly and a metal sheet is used for the support, and the fiber assembly surface of the support is coated. It has been found that it may be used as a coating material release sheet impregnated with a material release agent.
また、上記塗装材剥離シートは、使用前は、不織布面にセパレーターを重ねておくこともできるが、作製時に、２枚の塗装材剥離シートの塗装材剥離剤を含浸させた面同士を重ねておくと、使用時のごみの発生もなく、また、塗装材剥離シートの不織布面にセパレーターを重ねていないので、セパレーターに塗装材剥離剤を取られることもなく、極めて好都合であった。 Moreover, the said coating material peeling sheet can also overlap | separate a separator on a nonwoven fabric surface before use, but piles the surfaces which impregnated the coating material peeling agent of two coating material peeling sheets at the time of preparation. In other words, there was no generation of dust during use, and since the separator was not stacked on the nonwoven fabric surface of the coating material release sheet, the coating material release agent was not taken off by the separator, which was very convenient.
すなわち、垂直面から、水平面下側の表面にかけて形成された塗装材及びマーキングフィルムの剥離に使用する場合には、本発明の塗装材剥離剤を剥離しようとする塗装材及びマーキングフィルムに塗布するか、あるいは、塗装材剥離シートの塗装材剥離剤を含浸した面を剥離しようとする塗装材及びマーキングフィルムに貼り付け、塗装材及びマーキングフィルムを軟化させ、可塑化させることにより、ヘラや水洗等により下地より塗装材及びマーキングフィルムを容易に剥離させることができる。 That is, when the coating material and marking film formed from the vertical surface to the surface below the horizontal plane are used for peeling, is the coating material peeling agent of the present invention applied to the coating material and marking film to be peeled off? Or, the surface of the coating material release sheet impregnated with the coating material release agent is affixed to the coating material and marking film to be peeled off, and the coating material and marking film are softened and plasticized. The coating material and the marking film can be easily peeled off from the base.
特に、塗装材剥離シートを使用した剥離方法では、船底部などのように、作業者が対象物下方に入り込んで作業する箇所においては、液状剥離剤の滴下や、それに伴う衣服への付着などが起こり難く、作業性、安全性が向上する。 In particular, in the peeling method using a coating material release sheet, at places where the operator enters under the object, such as at the bottom of the ship, the liquid release agent is dropped or attached to clothes. Less likely to occur, improving workability and safety.
さらに、塗装材剥離シートを使用した剥離方法では、当然のことながら、塗装材剥離剤の塗布むらもなく、また、塗装材剥離剤の揮発なども殆どないことから、均一に、かつ、安定して塗装材及びマーキングフィルムを剥離させることができ、剥離に要する作業時間を短縮することができ、難しい熟練度も必要ではなくなる。 Furthermore, in the peeling method using the coating material release sheet, naturally, there is no uneven application of the coating material release agent, and since there is almost no volatilization of the coating material release agent, it is uniform and stable. Thus, the coating material and the marking film can be peeled off, the work time required for peeling can be shortened, and a difficult skill level is not required.
次に、本発明で使用される各種材料について、説明する。 Next, various materials used in the present invention will be described.
非ハロゲン系有機溶剤としては、塗装材及びマーキングフィルムを膨潤させる溶剤であれば使用できるが、沸点が１０６℃〜２７８℃の範囲である有機溶剤が望ましい。さらに好ましくは、沸点が１３０℃〜２５０℃の範囲である有機溶剤が望ましい。沸点が１０６℃未満の場合、溶剤が揮発し易く、捕集設備を設置する必要があり、沸点が２７８℃を超えると、塗装材への浸透力が低下し、剥離性能が劣る。非ハロゲン系有機溶剤としては、例えば、メチルセロソルブ、ブチルセロソルブ、プロパギルアルコールなどのアルコール系有機溶剤、メチルセロソルブアセテート、エチルセロソルブアセテート、ブチルセロソルブアセテートなどの酢酸エステル系有機溶剤、ジエチレングリコールモノエチルエーテル（カルビトール）、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノ−ｎ−ブチルエーテル（ブチルカルビトール）、ジエチレングリコールジメチルエーテル、ジエチレングリコールジエチルエーテル、ジエチレングリコールジ−ｎ−ブチルエーテル、ジエチレングリコールモノエチルエーテルアセテート（カルビトールアセテート）、ジエチレングリコールモノ−ｎ−ブチルエーテルアセテート、トリエチレングリコールモノメチルエーテル、トリエチレングリコールモノエチルエーテル、トリエチレングリコールモノ−ｎ−ブチルエーテルなどのグリコールエーテル類、２,２−ジメチルヘキサン、シクロヘキサノン、Ｎ−メチル−２−ピロリジノン、ピルビン酸メチル、ピルビン酸エチル、Ｎ，Ｎ−ジメチルアセトアミドなどが挙げられる。これらの非ハロゲン系有機溶剤は、単独もしくは２種類以上混合して使用される。 As the non-halogen organic solvent, any solvent that swells the coating material and the marking film can be used, but an organic solvent having a boiling point in the range of 106 ° C to 278 ° C is desirable. More preferably, an organic solvent having a boiling point in the range of 130 ° C to 250 ° C is desirable. When the boiling point is less than 106 ° C., the solvent tends to volatilize and it is necessary to install a collection facility. When the boiling point exceeds 278 ° C., the penetrating power to the coating material is lowered and the peeling performance is inferior. Examples of the non-halogen organic solvent include alcohol organic solvents such as methyl cellosolve, butyl cellosolve, propargyl alcohol, acetic acid ester organic solvents such as methyl cellosolve acetate, ethyl cellosolve acetate and butyl cellosolve acetate, diethylene glycol monoethyl ether (carbitol). ), Diethylene glycol monomethyl ether, diethylene glycol mono-n-butyl ether (butyl carbitol), diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol di-n-butyl ether, diethylene glycol monoethyl ether acetate (carbitol acetate), diethylene glycol mono-n-butyl ether acetate , Triethylene glycol Glycol ethers such as methyl monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol mono-n-butyl ether, 2,2-dimethylhexane, cyclohexanone, N-methyl-2-pyrrolidinone, methyl pyruvate, ethyl pyruvate , N, N-dimethylacetamide and the like. These non-halogen organic solvents are used alone or in combination of two or more.
使用される非ハロゲン系有機溶剤としては、剥離性能が高いことは勿論のこと、臭気が少ないこと、安全性が高いこと、などが必要である。 The non-halogen organic solvent to be used is required to have not only high peeling performance but also low odor and high safety.
更に、塗装材剥離剤の粘度を上げると同時に、塗装材剥離シートを塗装材及びマーキングフィルムへ貼り合わせた際の塗装材及びマーキングフィルムへの密着性、塗装材剥離シートの保持性を高めるために、可溶性有機高分子化合物を使用する。本発明で使用される可溶性有機高分子化合物としては、重量平均分子量が３０００〜２００万の範囲の可溶性有機高分子化合物が好ましく、例えば、商品名バイロンＲＶ−１０３、バイロンＲＶ−２００、バイロンＲＶ−２２０などのポリエステル系高分子材料、商品名パラクロンＳＮ−５０ＤＲ、パラクロンＡＳ−３０００ＤＲ、パラクロンＭＥ−３５００ＤＲなどのポリアクリル酸エステル系高分子材料、商品名ハイパールＭ−４００３、ハイパールＭ−４００６、ハイパールＭ−４２０２、ハイパールＭ−５０００、ハイパールＭ−５００１、ハイパールＭ−４５０１、ポリエチルメタクリレートなどのポリメタクリル酸エステル系高分子材料などが挙げられる。 Furthermore, to increase the viscosity of the coating material release agent and at the same time improve the adhesion of the coating material release sheet to the coating material and marking film and the retention of the coating material release sheet when the coating material release sheet is bonded to the coating material and marking film. Soluble organic polymer compounds are used. The soluble organic polymer compound used in the present invention is preferably a soluble organic polymer compound having a weight average molecular weight in the range of 3000 to 2 million. For example, trade names Byron RV-103, Byron RV-200, Byron RV- Polyester polymer materials such as 220, trade name Paraclone SN-50DR, Paraclone AS-3000DR, polyacrylic acid ester polymer materials such as Paraclone ME-3500DR, trade names Hyperl M4003, Hyperl M-4006, Hyperl M -4202, Hyperl M-5000, Hyperl M-5001, Hyperl M-4501, and polymethacrylic acid ester polymer materials such as polyethyl methacrylate.
その配合量は、上記非ハロゲン系有機溶剤と上記可溶性有機高分子化合物からなる溶液１００重量部に対して、１〜５０重量部であることが好ましい。さらに好ましくは、１〜３０重量部であることが望ましい。上記可溶性有機高分子化合物が１重量部より少ない場合には、塗装材剥離剤の保持性が低下し、また、５０重量部より多い場合には、特に、塗装材剥離剤が高粘度過ぎる為に、いずれの場合も実用上好ましくない。 The blending amount is preferably 1 to 50 parts by weight with respect to 100 parts by weight of the solution comprising the non-halogen organic solvent and the soluble organic polymer compound. More preferably, it is 1 to 30 parts by weight. When the amount of the soluble organic polymer compound is less than 1 part by weight, the retentivity of the coating material release agent is lowered, and when it is more than 50 parts by weight, the coating material release agent is particularly too viscous. In either case, it is not practically preferable.
なお、上記可溶性有機高分子化合物は、単独もしくは２種以上で使用される。
また、更に、塗装材剥離剤を塗装材及びマーキングフィルムへ塗布した際の塗装材剥離剤の保持性、及び、塗装材剥離シートを塗装材及びマーキングフィルムへ貼り合わせた際のシートの保持性を高めるために、チクソトロピー剤を使用する。本発明で使用されるチクソトロピー剤としては、有機系のものでは、例えば、商品名ディスパロン６５００、ディスパロン６７００などの脂肪酸アマイド系が挙げられ、無機系のものでは、商品名アエロジル２００、アエロジル３００、アエロジル３８０などの二酸化ケイ素系の超微粉末などが挙げられる。
The soluble organic polymer compounds are used alone or in combination of two or more.
Furthermore, the retention of the coating material release agent when the coating material release agent is applied to the coating material and the marking film, and the retention property of the sheet when the coating material release sheet is bonded to the coating material and the marking film. Use thixotropic agent to enhance. Examples of the thixotropic agent used in the present invention include organic compounds such as fatty acid amides such as trade names Disparon 6500 and Disparon 6700, and inorganic compounds include trade names Aerosil 200, Aerosil 300, and Aerosil. Examples thereof include ultrafine powders of silicon dioxide such as 380.
その配合量は、上記非ハロゲン系有機溶剤と可溶性有機高分子化合物からなる溶液１００重量部に対して、１〜１５重量部であることが好ましい。チクソトロピー剤が１重量部より少ない場合には、特に、船底部などのような水平面下側において、剥離剤の滴下が起こり易くなることや、塗装材剥離シートの保持性が低下し、また、１５重量部より多い場合には、塗装材剥離剤が複合基材に含浸しにくくなる為に、いずれの場合も実用上好ましくない。 The blending amount is preferably 1 to 15 parts by weight with respect to 100 parts by weight of the solution composed of the non-halogen organic solvent and the soluble organic polymer compound. When the thixotropic agent is less than 1 part by weight, the release agent is more likely to be dripped at the lower side of the horizontal plane such as the bottom of the ship, and the retention of the coating material release sheet is reduced. When the amount is more than part by weight, the coating material remover is less likely to be impregnated into the composite base material, and in either case, it is not practically preferable.
また、必要に応じてノニオン系、アニオン系またはカチオン系界面活性剤、着色剤、その他充填剤を添加してもよい。 Further, nonionic, anionic or cationic surfactants, colorants, and other fillers may be added as necessary.
また、さらに、垂直面から、水平面下側の表面にかけて形成された塗装材及びマーキングフィルムに対する塗装材剥離剤、及び、塗装材剥離シートの優れた保持性を有するために、塗装材剥離剤にチクソトロピー性を付与する。 Furthermore, in order to have excellent retainability of the coating material release agent for the coating material and marking film formed from the vertical surface to the surface below the horizontal plane, and the coating material release sheet, thixotropy is applied to the coating material release agent. Gives sex.
このチクソトロピー性は、有機溶剤に可溶性有機高分子化合物とチクソトロピー剤とを溶解又は分散させた溶液の剪断速度１ｒｐｍでの粘度をη１、剪断速度１０ｒｐｍでの粘度をη１０とした場合（測定温度２５℃）の相対粘度η１／η１０が、１．２〜１３．０であることが好ましい。チクソトロピー性（相対粘度η１／η１０）が１．２未満の場合には、特に、船底部などのような水平面下側において、剥離剤の滴下が起こり易くなることや、塗装材剥離シートの保持性が低下し、また、チクソトロピー性が１３．０を超える場合には、保持性に優れるものの、塗装材剥離剤が複合基材に含浸しにくくなるために、いずれの場合も実用上好ましくない。 This thixotropic property is obtained when the viscosity at a shear rate of 1 rpm of a solution obtained by dissolving or dispersing a soluble organic polymer compound and a thixotropic agent in an organic solvent is η 1 , and the viscosity at a shear rate of 10 rpm is η 10 (measurement temperature). 25) relative viscosity [eta] 1 / [eta] 10 is preferably 1.2 to 13.0. When the thixotropy (relative viscosity η 1 / η 10 ) is less than 1.2, it is easy for dripping of the release agent to occur on the lower side of the horizontal surface such as the bottom of the ship, In the case where the retainability is lowered and the thixotropic property is more than 13.0, the retainability is excellent, but it is difficult to impregnate the composite base material with the coating material release agent. .
また、塗装材剥離シートに使用される基材としては、塗装材剥離剤を含浸でき、かつ、塗装材剥離剤の揮発を抑制し、安定して保持できるような基材が好ましく、例えば、不織布、フェルト、立毛編織物、起毛編織物等の繊維集合体と有機フィルムとからなる複合基材もしくは、繊維集合体と金属シートとからなる複合基材が挙げられる。繊維集合体の坪量としては、必要量の塗装材剥離剤を含浸、保持できる厚みであれば良いが、特に、坪量が２０〜２００ｇ／m２であるものが好ましい。また、上記繊維集合体の替わりにスポンジ等からなるシートを用いても良い。 The base material used for the coating material release sheet is preferably a base material that can be impregnated with the coating material release agent and that can suppress the volatilization of the coating material release agent and can be stably maintained. And a composite base material composed of a fiber assembly and an organic film, such as felt, napping knitted fabric, and raised knitted fabric, or a composite base material composed of a fiber assembly and a metal sheet. The basis weight of the fiber assembly may be any thickness that can impregnate and retain a required amount of the coating material release agent, but those having a basis weight of 20 to 200 g / m 2 are particularly preferable. Further, a sheet made of sponge or the like may be used instead of the fiber assembly.
また、上記基材に含浸させる塗装材剥離剤の量は、剥離しようとする塗装材及びマーキングフィルムの種類にも依存するが、通常、５０〜２０００ｇ／m２の範囲で含浸させることが望ましい。塗装材剥離剤の量が５０ｇ／m２より少ない場合には、剥離性能が不十分となる場合があり、２０００ｇ／m２より多い場合には、塗装材剥離剤の保持性の観点から、実用上好ましくない。 Moreover, although the quantity of the coating material release agent impregnated in the said base material is dependent also on the kind of coating material and marking film which are going to peel, it is desirable to make it impregnate in the range of 50-2000 g / m < 2 > normally. When the amount of the coating material release agent is less than 50 g / m 2 , the release performance may be insufficient. When the amount is more than 2000 g / m 2 , it is practical from the viewpoint of the retention of the coating material release agent. Not preferable.
本発明の塗装材剥離剤を複合基材に含浸させた塗装材剥離シートを使用して、各種塗装材及びマーキングフィルムを剥離させた実験結果を実施例によって具体的に説明する。但し、本発明の塗装材剥離剤及び塗装材剥離シートは、これに限定されるものではない。 The experimental results of peeling various coating materials and marking films using a coating material release sheet obtained by impregnating a composite base material with the coating material release agent of the present invention will be specifically described by Examples. However, the coating material release agent and the coating material release sheet of the present invention are not limited thereto.
実施の形態の実施例及び比較例の記述中における「部」は重量部を表わす。 In the description of the examples and comparative examples of the embodiment, “parts” represents parts by weight.
〔実施例１〕
エチルセロソルブアセテート（沸点１５６℃）９０部、メチルセロソルブ（沸点１２５℃）９部、重量平均分子量約１００万のポリメタクリル酸エステル樹脂（根上工業製パラクロンＡＸ−２ＤＲ）１部、超微粉二酸化ケイ素（アエロジル２００）１５部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が１３．０のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量２０ｇ／m２の不織布と１２μｍ厚のポリエステルフィルムとからなる複合基材の不織布面に１００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、各種塗装材及びマーキングフィルムを剥離させた。この場合、塗装材剥離剤が含浸している複合基材の不織布面を塗装材面に押し付けて貼り付けた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
[Example 1]
90 parts of ethyl cellosolve acetate (boiling point 156 ° C.), 9 parts of methyl cellosolve (boiling point 125 ° C.), 1 part of polymethacrylate resin (parachlone AX-2DR manufactured by Negami Kogyo Co., Ltd.) having a weight average molecular weight of 1 part, ultrafine silicon dioxide ( 15 parts of Aerosil 200) were sufficiently mixed to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 13.0. Next, the coating material release agent is applied to the nonwoven fabric surface of the composite substrate composed of a nonwoven fabric having a basis weight of 20 g / m 2 and a polyester film having a thickness of 12 μm so as to obtain 100 g / m 2. It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and the marking film were peeled off. In this case, the nonwoven fabric surface of the composite base material impregnated with the coating material release agent was pressed against the coating material surface for pasting. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet is removed, and the coating material and the marking film are peeled off with a spatula, but there is a difference in the time until it can be peeled off. I was able to. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
なお、実験に使用した塗装材のうち、塩化ゴム系、ビニル系、エポキシ系船底さび止め塗装や、アクリル樹脂系、ビニル樹脂系船底防汚塗装や、合成樹脂調合ペイント塗装、アクリル樹脂エマルションペイント塗装、ＭＩＯ塗装、タールエポキシ樹脂塗装、塩化ゴム塗装、塩化ビニル樹脂塗装、エポキシ樹脂塗装、ポリウレタン樹脂塗装、熱硬化アミノアルキド樹脂塗装、熱硬化アクリル樹脂塗装については、２４時間放置後、スクレーパーによって塗装材を剥離することができた。また、屋内用マーキングフィルム、屋外用マーキングフィルムともに、６時間放置後、スクレーパーによって剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。 Of the coating materials used in the experiment, rust rubber coating, chlorinated rubber-based, vinyl-based, epoxy-based ship bottom anti-corrosion coating, acrylic resin-based, vinyl resin-based ship bottom antifouling coating, synthetic resin blended paint coating, acrylic resin emulsion paint coating , MIO coating, tar epoxy resin coating, chlorinated rubber coating, vinyl chloride resin coating, epoxy resin coating, polyurethane resin coating, thermosetting amino alkyd resin coating, thermosetting acrylic resin coating, leave it for 24 hours and then use a scraper Could be peeled off. Both the indoor marking film and the outdoor marking film could be peeled off by a scraper after being left for 6 hours. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例２〕
ブチルカルビトール（沸点２３０℃）８５部、プロパギルアルコール（沸点１１３℃）１０部、重量平均分子量約１万のポリエステル樹脂（東洋紡績製バイロンＲＶ−６００）５部、超微粉二酸化ケイ素（アエロジル３００）８部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が８．８のペースト状の塗装材剥離剤を得た。次に、上記した塗装材剥離剤を坪量２００ｇ／m２の不織布と１２μｍ厚のポリエステルフィルムとからなる複合基材の不織布面に２０００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
[Example 2]
85 parts of butyl carbitol (boiling point 230 ° C.), 10 parts of propargyl alcohol (boiling point 113 ° C.), 5 parts of a polyester resin having a weight average molecular weight of about 10,000 (Toyobo's Byron RV-600), ultrafine silicon dioxide (Aerosil 300) ) 8 parts were mixed thoroughly to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 8.8. Next, the coating material release agent described above was applied to the nonwoven fabric surface of the composite base material composed of a nonwoven fabric having a basis weight of 200 g / m 2 and a polyester film having a thickness of 12 μm so as to be 2000 g / m 2. Obtained. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例３〕
カルビトールアセテート（沸点２１８℃）７２部、ピルビン酸エチル（沸点１４８℃）８部、重量平均分子量約２万のポリエステル樹脂（東洋紡績製バイロンＲＶ−１０３）２０部、脂肪酸アマイド系粉末（ディスパロン６５００）６部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が２．８のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量１００ｇ／m２の不織布と１２μｍ厚のポリエステルフィルムとからなる複合基材の不織布面に８００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 3
72 parts carbitol acetate (boiling point 218 ° C.), 8 parts ethyl pyruvate (boiling point 148 ° C.), 20 parts polyester resin having a weight average molecular weight of about 20,000 (Toyobo's Byron RV-103), fatty acid amide powder (Dispalon 6500) ) 6 parts were mixed thoroughly to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 2.8. Then, the coating material peeling agent is applied such that the 800 g / m 2 on the nonwoven-fabric side of the composite base material comprising a polyester film of non-woven fabric and 12μm thick having a basis weight of 100 g / m 2, to obtain a coating material release sheet It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例４〕
カルビトールアセテート（沸点２１８℃）６５部、ピルビン酸メチル（沸点１２３℃）５部、重量平均分子量約２万のポリエステル樹脂（東洋紡績製バイロンＲＶ−１０３）３０部、超微粉二酸化ケイ素（アエロジル３００）６部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が６．６のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量１００ｇ／m２の不織布と１２μｍ厚のポリエステルフィルムとからなる複合基材の不織布面に１２００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 4
65 parts of carbitol acetate (boiling point 218 ° C.), 5 parts of methyl pyruvate (boiling point 123 ° C.), 30 parts of a polyester resin having a weight average molecular weight of about 20,000 (Byron RV-103 manufactured by Toyobo), ultrafine silicon dioxide (Aerosil 300) ) 6 parts were mixed well to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 6.6. Then, the coating material peeling agent is applied so as to 1200 g / m 2 on the nonwoven-fabric side of the composite base material comprising a polyester film of non-woven fabric and 12μm thick having a basis weight of 100 g / m 2, to obtain a coating material release sheet It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例５〕
カルビトール（沸点２０２℃）４０部、Ｎ−メチル−２−ピロリジノン（沸点２０２℃）１０部、重量平均分子量約６０万のポリアクリル酸エステル樹脂（根上工業製ハイパールＭ−４００３）５０部、脂肪酸アマイド系粉末（ディスパロン６５００）１部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が１．２のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量８０ｇ／m２の不織布と１２μｍ厚のアルミニウム箔とからなる複合基材の不織布面に５００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 5
40 parts carbitol (boiling point 202 ° C.), 10 parts N-methyl-2-pyrrolidinone (boiling point 202 ° C.), 50 parts polyacrylic acid ester resin (Hyperl M-4003, manufactured by Negami Kogyo), fatty acid 1 part of amide powder (Disparon 6500) was sufficiently mixed to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 1.2. Next, the coating material release agent is applied to the nonwoven fabric surface of the composite substrate composed of a nonwoven fabric having a basis weight of 80 g / m 2 and an aluminum foil having a thickness of 12 μm so as to obtain 500 g / m 2. It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例６〕
Ｎ−メチル−２−ピロリジノン（沸点２０２℃）６０部、カルビトールアセテート（沸点２１８℃）２０部、重量平均分子量約２万のポリエステル樹脂（東洋紡績製バイロンＲＶ−１０３）２０部、超微粉二酸化ケイ素（アエロジル３００）６部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が２．８のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量５０ｇ／m２の不織布と１２μｍ厚のポリエステルフィルムとからなる複合基材の不織布面に２００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 6
60 parts of N-methyl-2-pyrrolidinone (boiling point 202 ° C.), 20 parts of carbitol acetate (boiling point 218 ° C.), 20 parts of a polyester resin having a weight average molecular weight of about 20,000 (Byron RV-103 manufactured by Toyobo), ultrafine powder dioxide 6 parts of silicon (Aerosil 300) was sufficiently mixed to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 2.8. Then, the coating material peeling agent is applied such that the 200 g / m 2 on the nonwoven-fabric side of the composite base material comprising a polyester film of non-woven fabric and 12μm thick having a basis weight of 50 g / m 2, to obtain a coating material release sheet It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例７〕
トリエチレングリコールモノ−ｎ−ブチルエーテル（沸点２７８℃）４０部、トリエチレングリコールモノエチルエーテル（沸点２５６℃）４０部、重量平均分子量約２００万のポリメタクリル酸樹脂（ポリエチルメタクリレート）２０部、超微粉二酸化ケイ素（アエロジル２００）５部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が３．９のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量２０ｇ／m２の不織布と１２μｍ厚のアルミニウム箔とからなる複合基材の不織布面に５０ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 7
40 parts of triethylene glycol mono-n-butyl ether (boiling point 278 ° C.), 40 parts of triethylene glycol monoethyl ether (boiling point 256 ° C.), 20 parts of polymethacrylic acid resin (polyethyl methacrylate) having a weight average molecular weight of about 2 million, 5 parts of finely powdered silicon dioxide (Aerosil 200) was sufficiently mixed to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 3.9. Next, the coating material release agent is applied to the nonwoven fabric surface of the composite substrate composed of a nonwoven fabric having a basis weight of 20 g / m 2 and an aluminum foil having a thickness of 12 μm so as to obtain 50 g / m 2. It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例８〕
トリエチレングリコールモノエチルエーテル（沸点２５６℃）４０部、ジエチレングリコールモノメチルエーテル（沸点１９４℃）４０部、重量平均分子量約１００万のポリメタクリル酸エステル樹脂（根上工業製パラクロンＡＸ−２ＤＲ）１部、超微粉二酸化ケイ素（アエロジル２００）１０部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が４．５のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量２０ｇ／m２の不織布と１２μｍ厚のアルミニウム箔とからなる複合基材の不織布面に５０ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 8
40 parts of triethylene glycol monoethyl ether (boiling point 256 ° C.), 40 parts of diethylene glycol monomethyl ether (boiling point 194 ° C.), 1 part of a polymethacrylic acid ester resin having a weight average molecular weight of about 1,000,000 (Paracron AX-2DR manufactured by Negami Kogyo), 10 parts of finely divided silicon dioxide (Aerosil 200) was sufficiently mixed to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 4.5. Next, the coating material release agent is applied to the nonwoven fabric surface of the composite substrate composed of a nonwoven fabric having a basis weight of 20 g / m 2 and an aluminum foil having a thickness of 12 μm so as to obtain 50 g / m 2. It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
〔実施例９〕
２,２−ジメチルヘキサン（沸点１０６℃）２０部、ジエチレングリコールモノメチルエーテル（沸点１９４℃）４０部、重量平均分子量約３千のポリエステル樹脂（東洋紡績製バイロンＲＶ−２２０）４０部、超微粉二酸化ケイ素（アエロジル３００）６部を十分に混合し、相対粘度η１／η１０（測定温度２５℃）が２．５のペースト状の塗装材剥離剤を得た。次に、上記塗装材剥離剤を坪量２００ｇ／m２の不織布と１２μｍ厚のポリエステルフィルムとからなる複合基材の不織布面に５００ｇ／m２となるように塗布し、塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていた。このようにして作製した塗装材剥離シートを使用して、実施例１と同様に、各種塗装材及びマーキングフィルムを剥離させた。塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて放置したが、塗装材剥離シートのずれ、さらには落下することもなく、十分な保持性があることを確認した。その後、一定時間放置後、塗装材剥離シートを除去し、ヘラによって塗装材及びマーキングフィルムを剥離したが、剥離できるまでの時間に差はあるものの、実施例１と同様に、いずれの塗装材及びマーキングフィルムもきれいに剥離することができた。また、シート除去後、高圧水洗機を用いて塗装材を除去した場合、適度に塗装材が軟化、膨潤している為、容易に、かつ、きれいに剥離することができた。
Example 9
2,2-dimethylhexane (boiling point 106 ° C.) 20 parts, diethylene glycol monomethyl ether (boiling point 194 ° C.) 40 parts, weight average molecular weight about 3,000 polyester resin (Toyobo's Byron RV-220) 40 parts, ultrafine silicon dioxide 6 parts of (Aerosil 300) was sufficiently mixed to obtain a paste-like coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 2.5. Next, the coating material release agent is applied to the nonwoven fabric surface of the composite substrate composed of a nonwoven fabric having a basis weight of 200 g / m 2 and a polyester film having a thickness of 12 μm so as to obtain 500 g / m 2. It was. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. Using the coating material release sheet thus prepared, various coating materials and marking films were peeled off in the same manner as in Example 1. The coating material release sheet was stuck on the vertical surface (90 °), obtuse angle surface (135 °), and horizontal surface (180 °) under the coating material peeling test, but left untouched. Furthermore, it was confirmed that there was sufficient retention without dropping. Then, after leaving for a certain period of time, the coating material release sheet was removed, and the coating material and the marking film were peeled off with a spatula, but although there is a difference in the time until peeling, any coating material and The marking film could also be peeled cleanly. Further, when the coating material was removed using a high-pressure washing machine after the sheet was removed, the coating material was moderately softened and swollen, so that it could be easily and cleanly peeled off.
以上のように、本発明の塗装材剥離剤及び塗装材剥離シートは、垂直面だけでなく、水平面の下側に貼り付けた場合においても保持性に優れているとともに、作業性にも優れていることを確認した。 As described above, the coating material release agent and the coating material release sheet of the present invention are excellent not only in the vertical plane but also in the case of being attached to the lower side of the horizontal plane, and also in the workability. I confirmed.
〔比較例１〕
塗装材剥離剤の塗布量を４０ｇ／m２とした以外は、実施例３と同様の配合並びに構成にて塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていたが、実施例３と同様に、塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて２４時間放置したところ、塗装材剥離シートが落下し、シート保持性が不十分であることが分かった。
[Comparative Example 1]
A coating material release sheet was obtained with the same composition and configuration as in Example 3 except that the coating amount of the coating material release agent was 40 g / m 2 . In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. As in Example 3, the coating material release sheet was used as a vertical surface (90 ° for the coating material peeling test). ), Affixed to the lower side of the obtuse angle surface (135 °) and the lower side of the horizontal surface (180 °) and left for 24 hours, it was found that the coating material release sheet dropped and the sheet retention was insufficient. .
〔比較例２〕
塗装材剥離剤の塗布量を２５００ｇ／m２とした以外は、実施例３と同様の配合並びに構成にて塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていたが、実施例３と同様に、塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて２４時間放置したところ、塗装材剥離シートが落下し、シート保持性が不十分であることが分かった。
[Comparative Example 2]
A coating material release sheet was obtained with the same composition and configuration as in Example 3 except that the coating amount of the coating material release agent was 2500 g / m 2 . In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. As in Example 3, the coating material release sheet was used as a vertical surface (90 ° for the coating material peeling test). ), Affixed to the lower side of the obtuse angle surface (135 °) and the lower side of the horizontal surface (180 °) and left for 24 hours, it was found that the coating material release sheet dropped and the sheet retention was insufficient. .
〔比較例３〕
チクソトロピー剤を使用せずに、相対粘度η１／η１０（測定温度２５℃）が１．０の塗装材剥離剤を使用したこと以外は、実施例２と同様の配合並びに構成にて塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていたが、実施例２と同様に、塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて２４時間放置したところ、塗装材剥離シートがずれ、シート保持性が不十分であることが分かった。
[Comparative Example 3]
A coating material having the same composition and configuration as in Example 2 except that a coating material remover having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 1.0 was used without using a thixotropic agent. A release sheet was obtained. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. As in Example 2, the coating material release sheet was used as a vertical surface (90 ° for the coating material peeling test). ), Affixed to the lower side of the obtuse angle surface (135 °) and the lower side of the horizontal surface (180 °) and left for 24 hours, it was found that the coating material release sheet was displaced and the sheet retention was insufficient.
〔比較例４〕
チクソトロピー剤の配合量を０．１部とし、相対粘度η１／η１０（測定温度２５℃）が１．１の塗装材剥離剤を使用したこと以外は、実施例４と同様の配合並びに構成にて塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていたが、実施例４と同様に、塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて２４時間放置したところ、塗装材剥離シートがずれ、シート保持性が不十分であることが分かった。
[Comparative Example 4]
The same composition and configuration as in Example 4 except that the blending amount of the thixotropic agent was 0.1 part and a coating material release agent having a relative viscosity η 1 / η 10 (measurement temperature 25 ° C.) of 1.1 was used. A coating material release sheet was obtained. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. As in Example 4, the coating material release sheet was used as a vertical surface (90 ° for the coating material peeling test). ), Affixed to the lower side of the obtuse angle surface (135 °) and the lower side of the horizontal surface (180 °) and left for 24 hours, it was found that the coating material release sheet was displaced and the sheet retention was insufficient.
〔比較例５〕
基材に複合基材でなく、不織布単体を使用したこと以外は、実施例５と同様の配合並びに構成にて塗装材剥離シートを得た。この塗装材剥離シートは、複合基材の不織布部に塗装材剥離剤が適度に含浸されていたが、実施例５と同様に、塗装材剥離シートを塗装材剥離試験用の垂直面（９０°）、鈍角面（１３５°）の下側、水平面（１８０°）の下側に貼り付けて２４時間放置したところ、塗装材剥離剤の揮発が認められ、それに伴い、塗装材剥離シートがずれ、シート保持性が不十分であることが分かった。
[Comparative Example 5]
A coating material release sheet was obtained with the same composition and configuration as in Example 5 except that a non-woven fabric was used instead of the composite substrate. In this coating material release sheet, the nonwoven fabric portion of the composite base material was appropriately impregnated with the coating material release agent. As in Example 5, the coating material release sheet was used as a vertical surface (90 ° for the coating material peeling test). ), When applied to the lower side of the obtuse angle surface (135 °), the lower side of the horizontal surface (180 °) and left for 24 hours, volatilization of the coating material release agent was observed, and accordingly, the coating material release sheet was displaced, It was found that the sheet retention was insufficient.
Claims (7)
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| JP2006004447A JP2007186560A (en) | 2006-01-12 | 2006-01-12 | Paint remover and paint removing sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7208605B1 (en) | 2022-07-28 | 2023-01-19 | 株式会社ペイントサービス | METHOD FOR MANUFACTURING SHEET-LIKE STRUCTURE, METHOD FOR MANUFACTURING RELEASE AGENT HOLDING LAYER, AND SHEET ATTACHING TYPE WET Peeling METHOD |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7208605B1 (en) | 2022-07-28 | 2023-01-19 | 株式会社ペイントサービス | METHOD FOR MANUFACTURING SHEET-LIKE STRUCTURE, METHOD FOR MANUFACTURING RELEASE AGENT HOLDING LAYER, AND SHEET ATTACHING TYPE WET Peeling METHOD |
| JP7272721B1 (en) | 2022-07-28 | 2023-05-12 | 株式会社ペイントサービス | METHOD FOR MANUFACTURING RELEASE AGENT HOLDING LAYER, METHOD FOR MANUFACTURING SHEET-LIKE STRUCTURE, AND SHEET-LIKE STRUCTURE FOR WET Peeling |
| JP7272721B6 (en) | 2022-07-28 | 2023-06-09 | 株式会社ペイントサービス | METHOD FOR MANUFACTURING RELEASE AGENT HOLDING LAYER, METHOD FOR MANUFACTURING SHEET-LIKE STRUCTURE, AND SHEET-LIKE STRUCTURE FOR WET Peeling |
| JP2024017540A (en) * | 2022-07-28 | 2024-02-08 | 株式会社ペイントサービス | Sheet-like structure manufacturing method, release agent holding layer manufacturing method and sheet attachment type wet peeling method |
| JP2024018843A (en) * | 2022-07-28 | 2024-02-08 | 株式会社ペイントサービス | Release agent holding layer manufacturing method, sheet-like structure manufacturing method and sheet-like structure for wet peeling |
| JP7475094B2 (en) | 2022-07-28 | 2024-04-26 | 株式会社ペイントサービス | Sheet-like structure manufacturing method and sheet-like structure |
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