JP2008255292A - Japanese lacquer and method for forming decorative coat using the same - Google Patents
Japanese lacquer and method for forming decorative coat using the same Download PDFInfo
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Abstract
Description
本発明は、硬化速度を調整することのできる漆塗料、及び該漆塗料を用いた装飾性塗膜の形成方法に関する。 The present invention relates to a lacquer paint capable of adjusting the curing rate and a method for forming a decorative coating film using the lacquer paint.
漆塗膜の硬化は、漆中に含まれる酵素（ラッカーゼ）によるウルシオールの脱水素反応及び空気中の酸素による自動酸化によるものでる。（非特許文献１参照）
伝統的な粉体による装飾（蒔絵）や筆による絵付けを含めて、硬化漆塗膜の表面は基本的に平滑である。積極的に漆塗膜の光沢を変化させて塗膜の質感を変えたり、あるいは光沢の違いにより表面に装飾を施すには、サンドブラストなどによって表面に物理的な凹凸を付ける等、手間と時間のかかる方法を採用する必要があった。 The surface of the cured lacquer coating is basically smooth, including traditional powder decoration (painting) and brush painting. In order to change the texture of the paint film by actively changing the gloss of the lacquer film, or to decorate the surface with a difference in gloss, physical undulations are applied to the surface by sandblasting etc. It was necessary to adopt such a method.
漆の硬化塗膜でも、塗膜が厚い場合や硬化速度が速い場合などで平滑でない硬化塗膜となることは知られている。一部ではこのような非平滑塗膜を積極的に装飾法として試みられているが、極めて例外的である。塗膜全体に渡って同一の非平滑面を作ることは可能であっても、非平滑塗膜の有無、その表面形状、配向により文様を描く方法はこれまで知られていなかった。 It is known that even a lacquered cured coating film is a non-smooth cured coating film when the coating film is thick or when the curing speed is high. In some cases, such non-smooth coatings have been actively tried as decoration methods, but this is extremely exceptional. Even though it is possible to make the same non-smooth surface over the entire coating film, a method for drawing a pattern depending on the presence / absence of the non-smooth coating film, its surface shape, and orientation has not been known.
したがって、本発明はこれら従来技術の問題点を解消して、漆器製造に於いて、漆塗膜の硬化速度を簡便な方法で制御し、非平滑面を再現性よく形成させることができる漆塗料、及び該漆塗料を用いた装飾性塗膜の形成方法を提供することを目的とする。 Therefore, the present invention eliminates these problems of the prior art, and in lacquer ware manufacturing, it can control the curing rate of the lacquer coating film by a simple method and form a non-smooth surface with good reproducibility. And a method for forming a decorative coating film using the lacquer paint.
本発明者等は鋭意検討した結果、漆塗料中に少量の光分解性ｐＨ調整剤を配合することにより、上記課題が解決されることを発見し本発明を完成させたものである。 As a result of intensive studies, the present inventors have found that the above problems can be solved by blending a small amount of a photodegradable pH adjuster into the lacquer paint, and have completed the present invention.
すなわち、本発明は、次の１〜６の構成を採用するものである。
１．塗料全体を基準として、０．２〜１０重量％の光分解性ｐＨ調整剤を含有することを特徴とする漆塗料。
２．前記光分解性ｐＨ調整剤が、ヨードニウム塩、スルホニウム塩、ジアゾメタン系化合物、トリアジン系化合物、第４級アンモニウム塩、Ｏ−アシルオキシムからなる群から選択された光酸発生剤又は光塩基発生剤であることを特徴とする１に記載の漆塗料。
３．１又は２に記載された漆塗料を被塗物表面に塗布した後に塗膜表面に部分的に光照射してｐＨ調整剤を分解し、その後塗膜を硬化させることにより塗膜表面に凹凸を形成することを特徴とする装飾性塗膜の形成方法。
４．塗膜表面に模様を描いたマスク材を配置し、塗膜表面に部分的に光照射することを特徴とする３に記載の装飾性塗膜の形成方法。
５．塗膜表面に部分的に光照射した後に、塗膜表面に粉体を付着させ、その後塗膜を硬化させることを特徴とする３又は４に記載の装飾性塗膜の形成方法。
６．塗膜表面に形成する凹凸の高さが０．１〜５００μｍであることを特徴とする３〜５のいずれかに記載の装飾性塗膜の形成方法。
That is, the present invention adopts the following configurations 1 to 6.
1. A lacquer paint containing 0.2 to 10% by weight of a photodegradable pH adjuster based on the whole paint.
2. The photodegradable pH adjuster is a photoacid generator or photobase generator selected from the group consisting of iodonium salts, sulfonium salts, diazomethane compounds, triazine compounds, quaternary ammonium salts, and O-acyl oximes. The lacquer paint according to 1, which is characterized in that
3.1 After applying the lacquer coating described in 1 or 2 to the surface of the object to be coated, the surface of the coating film is partially irradiated with light to decompose the pH adjuster, and then the coating film is cured to form the coating film surface. A method for forming a decorative coating film, characterized by forming irregularities.
4). 4. The method for forming a decorative coating film according to 3, wherein a mask material having a pattern drawn on the surface of the coating film is disposed, and the coating film surface is partially irradiated with light.
5. The method for forming a decorative coating film according to 3 or 4, wherein the surface of the coating film is partially irradiated with light, then the powder is adhered to the coating film surface, and then the coating film is cured.
6). 6. The method for forming a decorative coating film according to any one of 3 to 5, wherein the height of the irregularities formed on the coating film surface is 0.1 to 500 [mu] m.
本発明は、次のような顕著な効果を奏するものである。
（１）ｐＨ調整剤を含む漆塗膜への光照射という簡便な方法により、立体感をもつ漆芸品が容易に製造できる。
（２）手作業によらず光マスクに応じて任意の文様が描くことができるので、光マスクを工夫することにより、塗膜への照明の方向、または塗膜を観察する方向により光沢が大きく変化する装飾塗膜を形成させることが出来る。これは、従来の漆工芸の装飾では見られない特徴であり、漆器装飾に新たな表現が付与できることを示すものである。
（３）ｐＨ調整剤の添加量は少量であるため、漆の質感、耐久性は全く変わらず、伝統的な漆芸品としての商品価値の損なうことがない。
（４）塗膜の硬化度の違いを利用して、従来の粉体による装飾（蒔絵）を容易に適用することも可能である。
The present invention has the following remarkable effects.
(1) A lacquer ware having a three-dimensional effect can be easily manufactured by a simple method of light irradiation to a lacquer coating film containing a pH adjuster.
(2) Arbitrary patterns can be drawn according to the light mask regardless of the manual work. By devising the light mask, the gloss is greater depending on the direction of illumination on the coating film or the direction of observing the coating film. A changing decorative coating can be formed. This is a characteristic that cannot be seen in conventional lacquer craft decoration, and indicates that a new expression can be imparted to lacquer ware decoration.
(3) Since the addition amount of the pH adjuster is small, the texture and durability of the lacquer are not changed at all, and the commercial value as a traditional lacquer product is not impaired.
(4) By utilizing the difference in the degree of curing of the coating film, it is also possible to easily apply a conventional decoration (maki-e) with powder.
本発明では、漆成分を主体とする塗料全体を基準として、０．２〜１０重量％の光分解性ｐＨ調整剤を配合することにより漆塗料を構成する。
光分解性ｐＨ調整剤としては、光を照射した際に分解して酸又は塩基を発生する光酸発生剤又は光塩基発生剤が使用される。好ましい光発生剤としては、ヨードニウム塩、スルホニウム塩、ジアゾメタン系化合物、トリアジン系化合物、からなる群から選択された光酸発生剤や、第４級アンモニウム塩又はＯ−アシルオキシムから選択された光塩基発生剤が挙げられる。ヨードニウム塩、スルホニウム塩の対アニオンは、AsF6 -、BF4 -、PF6 -、SbF6 -、CF3SO3 -などが用いられる。
In this invention, a lacquer coating material is comprised by mix | blending a 0.2-10 weight% photodegradable pH adjuster on the basis of the whole coating material which has a lacquer component as a main component.
As the photodegradable pH adjuster, a photoacid generator or a photobase generator that decomposes when irradiated with light to generate an acid or a base is used. Preferred photogenerators include photoacid generators selected from the group consisting of iodonium salts, sulfonium salts, diazomethane compounds, triazine compounds, photobases selected from quaternary ammonium salts or O-acyloximes. Examples include generators. As the counter anion of the iodonium salt or sulfonium salt, AsF 6 − , BF 4 − , PF 6 − , SbF 6 − , CF 3 SO 3 − or the like is used.
光酸発生剤の具体例としては、例えば、ビス（4-tert-ブチルフェニル）ヨードニウムトリフルオロメタンスルホネート、ビス（4-ドデシルフェニル）ヨードニウムヘキサフルオロホスフェート、(4-フェニルチオフェニル)ジフェニルスルホニウムトリフルオロスルホネート、トリ-p-トリルスルホニウムヘキサフルオロホスフェート、 (9-Oxa-9H-xanthen-2-yl)phenyl idonium hexafluorophosphate、(9-Oxa-9H-xanthen-2-yl)diphenyl sulfonium hexafluorophospahteが挙げられる。また、光酸発生剤として、トリハロメチルトリアジン化合物などの有機ハロゲン化合物、ニトロベンジルエステル、ジアゾスルホン、オキシムスルホネート、N-スルホニルオキシイミド構造の化合物を用いることもできる。 Specific examples of the photoacid generator include, for example, bis (4-tert-butylphenyl) iodonium trifluoromethanesulfonate, bis (4-dodecylphenyl) iodonium hexafluorophosphate, (4-phenylthiophenyl) diphenylsulfonium trifluorosulfonate Tri-p-tolylsulfonium hexafluorophosphate, (9-Oxa-9H-xanthen-2-yl) phenyl idonium hexafluorophosphate, and (9-Oxa-9H-xanthen-2-yl) diphenyl sulfonium hexafluorophospahte. As the photoacid generator, an organic halogen compound such as a trihalomethyltriazine compound, a nitrobenzyl ester, diazosulfone, oxime sulfonate, or a compound having an N-sulfonyloxyimide structure can be used.
光塩基発生剤の具体例としては、例えば、１−メチル−１−フェナシル−（１−アゾニアシクロヘキサン）Ｎ，Ｎ−ジメチルジチオカルバメート、トリメチルフルオレニルアンモニウム アイオダイド、ジベンゾフェノネオキシム ヘキサメチレンジウレタン等の、第４級アンモニウム塩又はＯ−アシルオキシム類が挙げられる。 Specific examples of the photobase generator include, for example, 1-methyl-1-phenacyl- (1-azoniacyclohexane) N, N-dimethyldithiocarbamate, trimethylfluorenylammonium iodide, dibenzophenone oxime hexamethylene diurethane. And quaternary ammonium salts or O-acyl oximes.
漆成分としては、通常はラッカーゼを含有するウルシオールを主成分とする天然の生漆や精製漆が用いられるが、ウルシオールと化学構造が近似したラッコール、チチオールを含む漆を使用してもよい。また、カシューオイル、乾性油等のいわゆる合成漆にラッカーゼを添加したもの、或いはこれらの合成漆と天然漆の混合物等を使用することもできる。
漆塗料（100重量％）中、光酸発生剤は、0.2重量％から10重量％、通常は0.5重量％から2.5重量％添加される。
As the lacquer component, natural raw lacquer or purified lacquer mainly composed of urushiol containing laccase is usually used, but lacquer containing lacquer or thiol having a chemical structure similar to urushiol may be used. Moreover, what added laccase to what is called synthetic lacquers, such as cashew oil and drying oil, or the mixture of these synthetic lacquers and natural lacquers can also be used.
In the lacquer paint (100% by weight), the photoacid generator is added in an amount of 0.2 to 10% by weight, usually 0.5 to 2.5% by weight.
本発明は光酸発生剤または光塩基発生剤から選択された光分解性ｐＨ調整剤を漆に添加し、塗膜へ光照射することによって発生した酸、又は塩基により酵素の触媒能を変化させ、硬化速度を制御することを原理としている。
図１は、本発明の漆塗料を使用して凹凸を有する装飾性塗膜を形成する原理を説明する模式図である。
（１）光マスクを通して塗布後未硬化の塗膜に光を照射し［図１（Ａ）］、
（２）塗膜の平面方向にpHの分布を発生させると、硬化速度の違いにより応力が発生し［図１（Ｂ）］、
（３）硬化速度の迅速な部分の優先的な収縮と、それに起因する塗膜の局所的な隆起により発生した応力が解消され［図１（Ｃ）］、
（４）塗膜面に隆起部分が生じて非平滑面が形成される［図１（Ｄ）］。
In the present invention, a photodegradable pH adjuster selected from a photoacid generator or a photobase generator is added to lacquer, and the catalytic ability of the enzyme is changed by the acid or base generated by irradiating the coating with light. The principle is to control the curing rate.
FIG. 1 is a schematic diagram for explaining the principle of forming a decorative coating film having irregularities using the lacquer paint of the present invention.
(1) Irradiate light to the uncured coating after application through a photomask [FIG. 1 (A)]
(2) When a pH distribution is generated in the plane direction of the coating film, stress is generated due to the difference in curing rate [FIG. 1 (B)],
(3) The stress generated by the preferential shrinkage of the portion having a rapid curing rate and the local bulge of the coating resulting therefrom is eliminated [FIG. 1 (C)],
(4) A raised portion is formed on the coating surface to form a non-smooth surface [FIG. 1 (D)].
本発明では、塗膜の隆起部分の形状、寸法、配向、間隔などを光マスクの形状により制御し、塗膜面に任意の文様を描画することができる。そして、装飾の立体化により、塗膜面に対する照明の方向、あるいは観察方向に依存して著しく質感は変化する。
本発明は、顔料や粉体によって加飾するのではなく、硬化塗膜における凹凸によって引き起こされる反射率の角度依存性によって加飾するという新しい原理を採用することにより従来の技術にはみられない、新規な装飾塗膜の形成方法を提供するものである。
In the present invention, it is possible to draw an arbitrary pattern on the coating surface by controlling the shape, size, orientation, interval, and the like of the raised portion of the coating film by the shape of the optical mask. Then, the three-dimensional decoration changes the texture remarkably depending on the direction of illumination with respect to the coating surface or the observation direction.
The present invention is not seen in the prior art by adopting the new principle of decorating by the angle dependence of the reflectance caused by irregularities in the cured coating, rather than decorating with pigments or powders. The present invention provides a method for forming a novel decorative coating film.
本発明において形成する塗膜の厚さは、通常は5μmから2mm程度であり、特に40μmから150μm程度とすることが好ましい。
照射光源としては、水銀灯、メタルハライドランプ、紫外光発光ダイオードなどを用いることができる。必要な積算光量は、塗膜の厚さ、光酸発生剤の構造、顔料の有無に大きく依存するが、塗膜への積算照射光量（365nm）は、20mJ/cm2から20J/cm2で、通常は300mJ/cm2から6J/cm2である。
The thickness of the coating film formed in the present invention is usually about 5 μm to 2 mm, and particularly preferably about 40 μm to 150 μm.
As the irradiation light source, a mercury lamp, a metal halide lamp, an ultraviolet light emitting diode, or the like can be used. The required integrated amount of light depends largely on the thickness of the coating, the structure of the photoacid generator, and the presence or absence of pigment, but the integrated amount of irradiation (365 nm) on the coating is 20 mJ / cm 2 to 20 J / cm 2 Usually, it is 300 mJ / cm 2 to 6 J / cm 2 .
本発明の漆塗料は、漆成分及び光分解性ｐＨ調整剤を直接混合し、機械的な攪拌により均一に混練することにより調製できる。その際に、ｐＨ調整剤の混和を容易にするため、少量のトルエン、テトラヒドロフラン、アセトン、プロピレンカーボネートなどの有機溶媒にｐＨ調整剤を溶解した後、塗料中に添加してもよい。またｐＨ調整剤の塗料中への溶解を促進するために浴型の超音波装置を利用することも可能である。 The lacquer coating material of the present invention can be prepared by directly mixing a lacquer component and a photodegradable pH adjuster and kneading them uniformly by mechanical stirring. At that time, in order to facilitate the mixing of the pH adjusting agent, the pH adjusting agent may be dissolved in a small amount of an organic solvent such as toluene, tetrahydrofuran, acetone, propylene carbonate, and then added to the paint. It is also possible to use a bath-type ultrasonic device to promote dissolution of the pH adjuster in the paint.
本発明の漆塗料を使用して塗膜を形成するには、通常の塗料と同様に、刷毛やゴムロールなどを使い、木材、金属、ガラス、セラミックス、プラスチックス等の被塗布物表面上に塗布することができる。また、本発明の漆塗料のみで彩色を行うには、筆などによる塗布の他、シルクスクリーンなどの印刷法が適用可能である。 In order to form a coating film using the lacquer paint of the present invention, it is applied onto the surface of an object to be coated such as wood, metal, glass, ceramics, plastics, etc. using a brush or rubber roll in the same way as a normal paint. can do. Moreover, in order to color only with the lacquer coating material of this invention, the printing methods, such as a silk screen, are applicable besides application | coating with a brush.
光マスクは、ガラスやプラスチックの板又はフィルムに、照射光に対して透過性のないインキ等で印字されたものを用いることが出来る。光マスクは塗膜に近接して配置し、塗膜に対して垂直方向から光照射を行う。光照射後、通常の漆の硬化と全く同様に、恒温恒湿度（相対湿度70％〜85％程度）に静置すると、凹凸を伴う硬化塗膜が自然に形成される。硬化塗膜に転写される凹凸の面内の分解能は、塗膜の厚さなどに依存し、おおよそ10μmから1mm程度である。 As the optical mask, a glass or plastic plate or film printed with ink or the like that is not transmissive to irradiation light can be used. The light mask is disposed close to the coating film and irradiates light from the direction perpendicular to the coating film. After light irradiation, a cured coating film with unevenness is naturally formed when it is allowed to stand at a constant temperature and humidity (relative humidity of about 70% to 85%) just like normal lacquer curing. The in-plane resolution of the unevenness transferred to the cured coating film depends on the thickness of the coating film and is about 10 μm to 1 mm.
本発明では、塗膜への金属粉体の固定による彩色（いわゆる蒔絵）の摘要が可能である。光マスクを通じて塗膜へ光照射を行った後、塗膜を恒温高湿度下で硬化を開始する。一定時間が経過した段階で、硬化の遅く、付着力のある塗膜部分に通常の蒔絵の技法で粉体を選択的に付着させることにより行う。付着後は再び恒温恒湿度下で完全硬化を行う。 In the present invention, it is possible to summarize coloring (so-called lacquer work) by fixing metal powder to the coating film. After irradiating the coating film with light through a light mask, curing of the coating film is started under constant temperature and high humidity. After a certain period of time has elapsed, the powder is selectively adhered to a coating film portion having a slow curing and adhesive force by a normal lacquer technique. After adhesion, complete curing is performed again under constant temperature and humidity.
つぎに、実施例により本発明をさらに説明するが、以下の具体例は本発明を限定するものではない。
（実施例１）
市販のくろめ漆に、光酸発生剤、(4-フェニルチオフェニル)ジフェニルスルホニウムトリフルオロスルホネート（光酸発生剤は塗料全量の1.5重量％）を加え、テフロン（登録商標）棒で練り合わせ、光酸発生剤を漆に溶解させた。調製された漆塗料をガラス基板上にアプリケータにより100μmの厚さに塗布した。塗膜に近接して、ポリエチレンテレフタレートフィルムに図２に示す縦横方向に格子状の文様を印刷した光マスクを設置し、高圧水銀灯（365nmにおける強度30mW/cm2,）を用いて紫外線を塗膜上方より照射した（積算光量4.5J/cm2）。温度25℃、相対湿度83％の庫内に塗膜を一夜静置すると、硬化塗膜が得られた（塗膜は鉛筆硬度HBから2H）。硬化塗膜断面の走査型電子顕微鏡写真を図３に示す。
光マスクの格子状の文様は、光が照射された部分は凸面に、光が当たらなかった部分は凹面として、硬化塗膜に文様が転写された。塗膜面に対して斜めから照明すると、塗膜の凹面から凸面への立ち上がり部分で強く光が反射されるため、塗膜が輝いて観察される。結果として、図４（斜め上方より照明）及び図５（斜め右側から照明）の写真のように、照明方向により塗膜の光沢は大きく変化して観察された。
EXAMPLES Next, the present invention will be further described with reference to examples, but the following specific examples are not intended to limit the present invention.
Example 1
Add a photoacid generator, (4-phenylthiophenyl) diphenylsulfonium trifluorosulfonate (1.5% by weight of the total amount of paint) to a commercially available Kurome lacquer and knead it with a Teflon (registered trademark) stick. The generator was dissolved in lacquer. The prepared lacquer paint was applied to a thickness of 100 μm on a glass substrate by an applicator. In close proximity to the coating, a polyethylene terephthalate film with a light mask printed with a grid pattern shown in the vertical and horizontal directions shown in Fig. 2 is installed, and ultraviolet rays are applied using a high-pressure mercury lamp (intensity 30 mW / cm 2 at 365 nm). Irradiated from above (integrated light intensity 4.5 J / cm 2 ). When the coating film was allowed to stand overnight in a chamber at a temperature of 25 ° C. and a relative humidity of 83%, a cured coating film was obtained (the coating film had a pencil hardness of HB to 2H). A scanning electron micrograph of the cross section of the cured coating film is shown in FIG.
In the lattice pattern of the optical mask, the pattern was transferred to the cured coating film with the portion irradiated with light being a convex surface and the portion not receiving light being a concave surface. When the surface of the coating film is illuminated obliquely, light is strongly reflected at the rising portion from the concave surface to the convex surface of the coating film. As a result, as shown in the photographs in FIG. 4 (illuminated from above obliquely) and FIG. 5 (illuminated from obliquely right side), the gloss of the coating film was observed to vary greatly depending on the illumination direction.
（実施例２）
2-[2-(4-メトキシフェニル-2-イル)ビニル]-4,6-ビス(トリクロロメチル)-1,3,5-トリアジンを含むくろめ漆（光酸発生剤は塗料全量の1.5重量％）をガラス基板上にアプリケータにより100μmの厚さに塗布した。塗膜に近接して、ポリエチレンテレフタレートフィルムに図６に示す斜め方向に格子状の文様を印刷した光マスクを設置し、高圧水銀灯（365nmにおける強度30mW/cm2,）を用いて紫外線を塗膜上方より照射した（積算光量0.9J/cm2）。温度25℃、相対湿度83％の庫内に塗膜を一夜静置すると、硬化塗膜が得られた（塗膜は鉛筆硬度HBから2H）。光マスクの格子状の文様は、光が照射された部分は凸面に、光が当たらなかった部分は凹面として、硬化塗膜に文様が転写された。（図７，８参照）
(Example 2)
Kurome lacquer containing 2- [2- (4-methoxyphenyl-2-yl) vinyl] -4,6-bis (trichloromethyl) -1,3,5-triazine (photoacid generator is 1.5% of the total amount of paint) %) Was applied on a glass substrate with an applicator to a thickness of 100 μm. In close proximity to the coating film, a polyethylene terephthalate film with a light mask printed with a lattice pattern in the diagonal direction shown in Fig. 6 is installed, and UV light is applied using a high-pressure mercury lamp (intensity 30 mW / cm 2 at 365 nm). Irradiated from above (integrated light intensity 0.9 J / cm 2 ). When the coating film was allowed to stand overnight in a chamber at a temperature of 25 ° C. and a relative humidity of 83%, a cured coating film was obtained (the coating film had a pencil hardness of HB to 2H). In the lattice pattern of the optical mask, the pattern was transferred to the cured coating film with the portion irradiated with light being a convex surface and the portion not receiving light being a concave surface. (See Figs. 7 and 8)
（実施例３：光沢計での評価）
実施例1と同様な条件で配向した襞を有する硬化塗膜を得た。堀場社製の光沢計Gloss Checker IG-331型を用いて、測定角度60度で光沢度を測定したところ、16（皺に平行な方向）、及び10（皺に垂直な方向）であった。
(Example 3: Evaluation with gloss meter)
A cured coating film having wrinkles oriented under the same conditions as in Example 1 was obtained. Using a gloss meter Gloss Checker IG-331 manufactured by HORIBA, the glossiness was measured at a measurement angle of 60 degrees, and was 16 (direction parallel to the eyelids) and 10 (direction perpendicular to the eyelids).
（実施例４：顔料を含む漆塗料）
黒漆（塗料全量の1.5重量％の光酸発生剤、2-[2-(4-メトキシフェニル-2-イル)ビニル]-4,6-ビス(トリクロロメチル)-1,3,5-トリアジンを含む）をガラス基板上にアプリケータにより100μmの厚さに塗布した。塗膜に近接して、ポリエチレンテレフタレートフィルムに図９に示す文様を印刷した光マスクを設置し、高圧水銀灯（365nmにおける強度30mW/cm2,）を用いて紫外線を塗膜上方より照射した（積算光量0.9J/cm2）。温度25℃、相対湿度83％の庫内に塗膜を一夜静置すると、硬化塗膜が得られた。硬化塗膜に転写された文様の写真を図１０に示す。
(Example 4: Lacquer paint containing pigment)
Black lacquer (1.5% by weight photoacid generator, 2- [2- (4-methoxyphenyl-2-yl) vinyl] -4,6-bis (trichloromethyl) -1,3,5-triazine Was applied on a glass substrate with an applicator to a thickness of 100 μm. A light mask with the pattern shown in Fig. 9 printed on a polyethylene terephthalate film was installed in the vicinity of the coating film, and ultraviolet light was applied from above the coating film using a high-pressure mercury lamp (intensity at 365 nm: 30 mW / cm 2 ). Light intensity 0.9J / cm 2 ). When the coating film was allowed to stand overnight in a chamber at a temperature of 25 ° C. and a relative humidity of 83%, a cured coating film was obtained. A photograph of the pattern transferred to the cured coating film is shown in FIG.
（実施例５：光塩基発生剤を含む漆塗料）
光塩基発生剤、1-ナフトイルメチル-(1-アゾニア-4-アザビシクロ[2,2,2]オクタン) N,N-ジメチルジチオカルバメートを含む漆（光塩基発生剤は塗料全量の2重量％）をガラス基板上にアプリケータにより60μmの厚さに塗布した。塗膜に近接して、ポリエチレンテレフタレートフィルムに文様を印刷した光マスクを設置し、高圧水銀灯（365nmにおける強度30mW/cm2,）を用いて紫外線を塗膜上方より照射した（積算光量0.9J/cm2）。温度25℃、相対湿度83％の庫内に塗膜を一夜静置すると、光マスクの文様が転写された硬化塗膜が得られた。
(Example 5: Lacquer paint containing photobase generator)
Photobase generator, 1-naphthoylmethyl- (1-azonia-4-azabicyclo [2,2,2] octane) lacquer containing N, N-dimethyldithiocarbamate (photobase generator is 2% by weight of total paint) ) Was applied to a thickness of 60 μm on a glass substrate with an applicator. A light mask with a pattern printed on a polyethylene terephthalate film was installed in the vicinity of the coating, and UV light was applied from above the coating using a high-pressure mercury lamp (intensity 30 mW / cm 2 at 365 nm). cm 2 ). When the coating film was allowed to stand overnight in a chamber at a temperature of 25 ° C. and a relative humidity of 83%, a cured coating film having a photomask pattern transferred was obtained.
（実施例６：光酸発生剤を用いた漆塗料を用いた蒔絵彩色）
実施例2と同様にして、光酸発生剤を含む漆塗膜に光マスクを使用して紫外線照射した後、塗膜を通常の漆硬化の条件下で静置した。塗膜が部分硬化した約3時間後に、銀粉を塗膜に振りまき、過剰の銀粉を脱脂綿でぬぐい去った。銀粉は硬化の遅い部分（光照射が行われた部分）のみに選択的に付着し、光マスクの文様に沿って銀粉による濃淡が形成された。再び通常の漆硬化条件で静置し、完全硬化させた。得られた塗膜の顕微鏡写真を図１１に示す。
(Example 6: Color painting using lacquer paint using photoacid generator)
In the same manner as in Example 2, the lacquer coating film containing the photoacid generator was irradiated with ultraviolet rays using a photomask, and then the coating film was allowed to stand under normal lacquer curing conditions. About 3 hours after the coating film was partially cured, the silver powder was sprinkled on the coating film, and excess silver powder was wiped away with absorbent cotton. The silver powder selectively adhered only to the slow-curing part (the part where the light irradiation was performed), and the density of the silver powder was formed along the pattern of the photomask. Again, it was allowed to stand under normal lacquer curing conditions and completely cured. A photomicrograph of the resulting coating film is shown in FIG.
Claims (6)
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| WO2010126061A1 (en) | 2009-04-30 | 2010-11-04 | 株式会社Duco | Lacquer pattern production method, lacquer pattern formed by using the method, and lacquer pattern display method |
| JP2015109298A (en) * | 2013-12-03 | 2015-06-11 | 国立大学法人 筑波大学 | Method for processing lacquer coating film, and product including coating film processed thereby |
| JP2016211786A (en) * | 2015-05-11 | 2016-12-15 | パナソニックＩｐマネジメント株式会社 | Household electric appliance and interior material used for the same |
| JP2016211787A (en) * | 2015-05-11 | 2016-12-15 | パナソニックＩｐマネジメント株式会社 | Household electric appliance and decorative sheath material used for the same |
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