JP2005028359A - Method for determining color tone of coating film - Google Patents

Method for determining color tone of coating film Download PDF

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JP2005028359A
JP2005028359A JP2004179294A JP2004179294A JP2005028359A JP 2005028359 A JP2005028359 A JP 2005028359A JP 2004179294 A JP2004179294 A JP 2004179294A JP 2004179294 A JP2004179294 A JP 2004179294A JP 2005028359 A JP2005028359 A JP 2005028359A
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coating film
color
light
coating
color tone
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JP4646288B2 (en
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Shinji Tomita
真司 冨田
Atsushi Makita
厚 真貴田
Toshikazu Okada
斗士一 岡田
Toshiyuki Ogawa
敏之 小川
Tomomi Matsuoka
智巳 松岡
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Kansai Paint Co Ltd
Ushio Denki KK
Ushio Inc
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Kansai Paint Co Ltd
Ushio Denki KK
Ushio Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for easily determining the color tone of a coating film. <P>SOLUTION: This method for determining the color tone of the coating film is characterized in that a coating film containing a luster pigment is irradiated with a light beam with a correlated color temperature of 5,000 K or less using a light irradiation device equipped with a ceramic metal halide lamp for radiating the light beam with the correlated color temperature of 5,000 K or less. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、自動車車体などに設けられた塗膜の色調を判定する方法に関する。   The present invention relates to a method for determining the color tone of a coating film provided on an automobile body or the like.

一般に、塗膜の色調の評価には、相関色温度が6500K〜6800Kの光線を放射する光源を有する人工太陽灯、或いは太陽光と同等のスペクトル分布を示すランプが照射光として使用されている(特許文献1など)。
近年、自動車等の外板にはメタリック塗料やパール塗料などの光輝性顔料を含有する塗料からの光輝性塗膜が好んで用いられている。こうした光輝性塗膜の色調の評価は、光輝性顔料の緻密感やフリップフロップ性等の評価を包含するものであり、熟練を要するものであったり、特殊な測定器や演算式を利用する必要があり、簡易に評価する方法が望まれていた。特に自動車補修塗装の業界において、補修塗膜部が光輝性塗膜である場合には、補修塗膜部と正常塗膜部とで同等の仕上がり外観を得ることは容易ではなく、補修塗装工程において、補修塗膜部と見本板とを対比する比色作業には正確さが求められている。
特開2000−40406号公報
In general, for the evaluation of the color tone of a coating film, an artificial solar light having a light source that emits light having a correlated color temperature of 6500K to 6800K or a lamp having a spectral distribution equivalent to sunlight is used as irradiation light ( Patent Document 1).
In recent years, glitter coatings from paints containing glitter pigments, such as metallic paints and pearl paints, have been used favorably for outer panels of automobiles and the like. Evaluation of the color tone of such glittering coatings includes evaluation of the denseness and flip-flop properties of glittering pigments, and requires skill or use of special measuring instruments or arithmetic expressions. Therefore, a simple evaluation method has been desired. Especially in the automotive repair coating industry, when the repair coating is a glitter coating, it is not easy to obtain the same finished appearance in the repair coating and the normal coating. The colorimetric work for comparing the repair coating and the sample plate requires accuracy.
JP 2000-40406 A

本発明の目的は、塗膜の色調を判定する新規方法を提供することにある。   An object of the present invention is to provide a novel method for determining the color tone of a coating film.

本発明者らは、塗膜の色調評価用の光線として特定の色温度を有するランプから放射される光線が適することを見出し、本発明に到達した。
即ち本発明は、
1.塗膜に、相関色温度が5000K以下である光線を放射するランプを具備する光照射装置を用いて、相関色温度が5000K以下である光線を照射することを特徴とする塗膜の色調を判定する方法、
2.塗膜が、その成分の一部として光輝性顔料を含有する1項に記載の塗膜の色調を判定する方法、
3.ランプが、セラミックメタルハライドランプである1項または2項に記載の塗膜の色調を判定する方法、および
4.塗膜が自動車補修塗膜である1項ないし3項のいずれか1項に記載の塗膜の色調を判定する方法、
に関する。
The inventors have found that a light beam emitted from a lamp having a specific color temperature is suitable as a light beam for evaluating the color tone of a coating film, and have reached the present invention.
That is, the present invention
1. The color tone of the coating film is characterized by irradiating the coating film with a light beam having a correlated color temperature of 5000 K or less by using a light irradiation device including a lamp that emits a light beam having a correlated color temperature of 5000 K or less. how to,
2. The method for determining the color tone of the coating film according to item 1, wherein the coating film contains a luster pigment as part of its components,
3. 3. The method for determining the color tone of the coating film according to item 1 or 2, wherein the lamp is a ceramic metal halide lamp, and The method for determining the color tone of the coating film according to any one of items 1 to 3, wherein the coating film is an automobile repair coating film,
About.

本発明方法によれば、塗膜の色調判定の際に相関色温度が5000K以下の光線を照射することによって、従来から判定が困難であった光輝性顔料を含む塗膜の光輝性顔料の配向性や緻密感、フリップフロップ性等も容易に視認することができる。また、本発明方法を、例えば自動車塗膜等の補修塗装用途に適用すると、補修塗膜部と見本板を対比する比色作業を正確に行うことができるので、補修塗膜部を正常塗膜部と同等の外観に調整する作業が容易となる利点を有する。   According to the method of the present invention, by irradiating a light beam having a correlated color temperature of 5000 K or less when determining the color tone of the coating film, the orientation of the bright pigment of the coating film containing the bright pigment that has been difficult to determine conventionally It is possible to easily visually recognize the property, the denseness, the flip-flop property, and the like. In addition, when the method of the present invention is applied to a repair coating application such as an automobile coating film, a colorimetric operation for comparing the repair coating film portion and the sample plate can be accurately performed. There is an advantage that the work of adjusting to the same appearance as the part becomes easy.

本発明方法は、塗膜の色調判定として、塗膜に相関色温度が5000K以下、好ましくは3000〜4900K、さらに好ましくは3600〜4500Kである光線を放射する
ランプを具備する光照射装置により上記光線を照射することを特徴とする。
In the method of the present invention, the color tone of the coating film is determined by the light irradiation apparatus including a lamp that emits a light beam having a correlated color temperature of 5000 K or less, preferably 3000 to 4900 K, more preferably 3600 to 4500 K. It is characterized by irradiating.

本発明において、塗膜の色調とは、塗料やインク、化粧品などによって形成される塗膜外観の仕上がり性全般を意味しており、色味の他に、ツヤ感、透明度、顔料の配向性、顔料の緻密感、フリップフロップ性(キラキラ感)、真珠光沢感、漆黒性等を含む、主に目視で確認することのできるものである。
色温度とは、一般に放射される光線の色度を表す一種の指標であり、一般に色温度が高い光線ほど青く、色温度が低い光線ほど赤くなる傾向がある。色温度は、黒体とよばれる理想体の温度(K)で表される。光線の色が色度図上において、色温度と色の軌跡である黒体軌跡上にない場合、該光線の色温度は相関色温度として近似的に表すことができる。すなわち相関色温度とは、光線の色が黒体軌跡上にない場合、完全に一致しないが最も近似の黒体の温度である。本発明においては、相関色温度が5000Kを超える光線では、塗膜色調評価において、例えば光輝性顔料を含有する塗膜のメタリック感や、パール感(真珠光沢感)といった特有の発色をとらえることができない場合があるので好ましくない。
In the present invention, the color tone of the coating film means the overall finish of the appearance of the coating film formed by paints, inks, cosmetics, etc., in addition to the color, gloss, transparency, orientation of the pigment, It can be confirmed mainly by visual observation, including the denseness of the pigment, flip-flop properties (glittering), pearly luster, jetness and the like.
The color temperature is a kind of index that generally represents the chromaticity of the emitted light. Generally, the light having a higher color temperature tends to be blue, and the light having a lower color temperature tends to be red. The color temperature is expressed by the temperature (K) of an ideal body called a black body. When the color of the light beam is not on the black body locus which is the color locus and the color locus on the chromaticity diagram, the color temperature of the light beam can be approximately expressed as a correlated color temperature. That is, the correlated color temperature is the temperature of the closest black body that does not match completely when the color of the light ray is not on the black body locus. In the present invention, when the correlated color temperature exceeds 5000K, in the coating color tone evaluation, for example, a unique color development such as a metallic feeling or a pearly feeling (pearly luster feeling) of the coating film containing the glitter pigment can be captured. Since it may not be possible, it is not preferable.

尚、本発明における相関色温度は、光照射装置の電源を入れてから、例えば3分程度経過して、放射される光線の色温度が実質的に一定になったときに色温度測定器で測定した値を意味する。
本発明方法が適用される塗膜面としては、塗料、インク、化粧品による塗膜面が挙げられ、特に制限はないが、塗料による塗膜面の場合であれば、上塗り塗装に通常用いられるメタリック塗料、パール塗料、ソリッドカラー塗料等のエナメル塗料;クリヤー塗料等による塗膜面を挙げることができる。また、これら上塗り塗料から選ばれる2種以上の塗料による複層塗膜も包含することができる。また、上記上塗り塗料による塗膜の下層に、従来公知のパテ層やプライマー層を設けてもよい。
The correlated color temperature in the present invention is determined by the color temperature measuring device when the color temperature of the emitted light becomes substantially constant after, for example, about 3 minutes from turning on the light irradiation device. Means the measured value.
Examples of the coating surface to which the method of the present invention is applied include coating surfaces with paints, inks, and cosmetics, and are not particularly limited. Examples include enamel paints such as paints, pearl paints and solid color paints; and paint film surfaces such as clear paints. Moreover, the multilayer coating film by 2 or more types of coating materials chosen from these top coating materials can also be included. Moreover, you may provide a conventionally well-known putty layer and primer layer in the lower layer of the coating film by the said top coat.

本発明方法においては、上記塗膜面がその成分の一部として光輝性顔料を含有する場合においても、その効果を十分に発揮することができる。光輝性顔料としては、アルミニウム顔料、酸化チタンや酸化鉄等の金属酸化物をマイカ粉の表面に薄くコーティングしてなる光輝性マイカ顔料、銅粉、金粉、真鍮粉等を挙げることができる。本発明方法においては、上記した範囲の相関色温度である光線を照射することにより、光輝性顔料の緻密感及びフリップフロップ性を含めた塗膜色調評価を正確に行うことができる。   In the method of the present invention, even when the coating surface contains a glitter pigment as a part of its components, the effect can be sufficiently exhibited. Examples of the glitter pigment include aluminum pigment, glitter mica pigment obtained by thinly coating the surface of mica powder with metal oxide such as titanium oxide and iron oxide, copper powder, gold powder, brass powder and the like. In the method of the present invention, the coating color tone evaluation including the denseness of the glitter pigment and the flip-flop property can be accurately performed by irradiating the light beam having the correlated color temperature in the above range.

本発明方法は、自動車車体等に設けられた塗膜等の色調評価を行う方法であり、補修塗装塗膜の色調評価に好適に適用される。例えば、自動車車体等に設けられた塗膜の補修工程で、補修塗装部と色見本カード又は正常部とを対比する比色作業用等に本発明方法は適している。
本発明方法に使用される、相関色温度が5000K以下の光線を照射するための光照射装置としては、相関色温度が5000K以下である光線を放射するランプを具備する装置であれば、従来公知のものが制限なく使用できる。
The method of the present invention is a method for evaluating the color tone of a coating film or the like provided on an automobile body or the like, and is suitably applied to the color tone evaluation of a repair coating film. For example, the method of the present invention is suitable for a colorimetric operation in which a repair coating portion is compared with a color sample card or a normal portion in a coating film repairing process provided on an automobile body or the like.
As a light irradiation device for irradiating a light beam having a correlated color temperature of 5000 K or less, which is used in the method of the present invention, any device having a lamp that emits a light beam having a correlated color temperature of 5000 K or less is conventionally known. Can be used without restriction.

上記ランプとしては、相関色温度が上記の範囲内であれば従来公知のものが制限なく使用でき、例えばメタルハライドランプ、セラミックメタルハライドランプ、ハロゲンランプ、キセノンランプ、クリプトンランプ、蛍光灯、半導体レ−ザ−、発光ダイオ−ドなどが挙げられ、これらのうち発光管の材質がセラミックであるセラミックメタルハライドランプが好適である。   As the lamp, any conventionally known lamp can be used as long as the correlated color temperature is within the above range. For example, a metal halide lamp, a ceramic metal halide lamp, a halogen lamp, a xenon lamp, a krypton lamp, a fluorescent lamp, a semiconductor laser, and the like. -, A light emitting diode, and the like. Among these, a ceramic metal halide lamp in which the material of the arc tube is ceramic is preferable.

本発明方法に好適なセラミックメタルハライドランプとしては、例えば、発光物質が封入された発光管を覆うように外管が被さった2重管構造を有する構造であることが望ましく、発光管と外管との間の空間には、窒素ガスが封入され密封されていることが望ましい

このようにセラミックメタルハライドランプが2重管構造であり、発光管としてセラミックを用いることにより、発光管内の発光物質が外部に抜け出ることを防止でき、長時間点灯してもランプから放射される光線の相関色温度の変化が起こらないようにすることができるからであり、さらに発光管に外管を被せることにより、発光管の保温性を向上させ、点灯中、発光管内の発光ガスの温度を一定に保持出来、点灯中にランプから放射される光線の相関色温度の変化が起こらないようにすることができるので好適である。
As a ceramic metal halide lamp suitable for the method of the present invention, for example, it is desirable to have a structure having a double tube structure in which an outer tube is covered so as to cover a luminous tube in which a luminescent material is sealed. It is desirable that nitrogen gas is sealed and sealed in the space.
In this way, the ceramic metal halide lamp has a double tube structure, and by using ceramic as the arc tube, the luminescent material in the arc tube can be prevented from escaping to the outside. This is because the correlated color temperature can be prevented from changing, and the arc tube is covered with an outer tube, thereby improving the heat retention of the arc tube and keeping the temperature of the luminescent gas in the arc tube constant during lighting. It is preferable that the correlated color temperature of the light emitted from the lamp does not change during lighting.

この結果、塗膜色調判定に適した、相関色温度、365nmの紫外線の光強度、800nmの赤外線の光強度の3つの条件を満足する発光物質を決定することができるという効果がある。
上記セラミックメタルハライドランプにおいて、発光管から放射された紫外線を良好に透過するための外管の材質としては、熔融石英ガラスを挙げることができる。該熔融石英ガラスとしては、365nm以下の紫外線を良好に透過する材質であることが望ましい。具体的には、180nmの光線において、50%〜70%、好ましくは50〜60%の透過率、220nmの光において80〜90%、好ましくは80〜85%の透過率、300nmの光線において90%以上、好ましくは90〜95%の透過率を有する特性の熔融石英ガラスであることが望ましい。このような特性の熔融石英ガラス製の外管を用いることにより、光輝性塗膜の比色作業であっても色調判定を容易に行うことが可能となる。
As a result, there is an effect that it is possible to determine a luminescent substance that satisfies the three conditions of correlated color temperature, 365 nm ultraviolet light intensity, and 800 nm infrared light intensity, which are suitable for coating film color determination.
In the ceramic metal halide lamp, a fused quartz glass can be used as a material for the outer tube for satisfactorily transmitting the ultraviolet rays emitted from the arc tube. The fused silica glass is preferably made of a material that transmits ultraviolet light having a wavelength of 365 nm or less. Specifically, it has a transmittance of 50% to 70%, preferably 50 to 60% for 180 nm light, 80 to 90% for 220 nm light, preferably 80 to 85%, and 90% for 300 nm light. % Or more, preferably 90 to 95% of the characteristic fused silica glass. By using an outer tube made of fused silica glass having such characteristics, it is possible to easily determine the color tone even in the colorimetric operation of the glitter coating film.

本明細書において、熔融石英ガラスに対する光線の透過率は、分光測定方法を用いて算出する。あらかじめ分光分布がわかっている標準光源を使い、その光源から放射された光を熔融石英ガラスに照射して、該ガラスを透過した光線の分光分布を測定する。次いでガラスを透過した光線の分光分布を、標準光源の分光分布と比較することにより光線の透過率として算出する。   In this specification, the light transmittance with respect to fused silica glass is calculated using a spectroscopic measurement method. Using a standard light source whose spectral distribution is known in advance, the fused silica glass is irradiated with light emitted from the light source, and the spectral distribution of the light transmitted through the glass is measured. Next, the spectral distribution of the light transmitted through the glass is calculated as the light transmittance by comparing with the spectral distribution of the standard light source.

発光物質としては具体的には、例えば、紫外線を主に放射する発光物質である水銀と、赤外線を主に放射する発光物質であるナトリウムを選択することができる。また、発光物質にディスプロシウム、セリウムを加えてもよい。これにより演色性のよい光を放射することができ、塗膜の色調を正確に判定することができる。
本発明方法においては、該ランプから放射される光線としては、例えば365nmの波長において照射距離20cmにおける光強度が、5mW/cm2以下であって、且つ80
0nmの波長において、照射距離10cmにおける光強度が250mW/cm2以下の範
囲内であることが望ましい。また、照度としては、2000〜5000lx、好ましくは2500〜4500lxの範囲内であることが望ましい。
Specifically, for example, mercury, which is a luminescent substance that mainly emits ultraviolet rays, and sodium, which is a luminescent substance that mainly emits infrared rays, can be selected as the luminescent substance. Further, dysprosium and cerium may be added to the light-emitting substance. Thereby, light with good color rendering properties can be emitted, and the color tone of the coating film can be accurately determined.
In the method of the present invention, the light emitted from the lamp has a light intensity of 5 mW / cm 2 or less at a wavelength of 365 nm and an irradiation distance of 20 cm, and 80
It is desirable that the light intensity at an irradiation distance of 10 cm is within a range of 250 mW / cm 2 or less at a wavelength of 0 nm. The illuminance is preferably in the range of 2000 to 5000 lx, preferably 2500 to 4500 lx.

上記、光強度は、ランプから放射される光線の中心を上記所定距離にて光量計で測定したものである。波長365nmの光強度の測定に使用できる光量計としては、例えば「UNIMETER UIT−150 TYPE UIT−150A」(商品名、ウシオ電機社製)が挙げられ、波長800nmの光強度の測定に使用できる光量計としては、例えば「MODEL I400A」(商品名、INTERNATIONAL LIGHT INC.社製)を挙げることができる。照度は、放射される光線の中心を、ランプから被照射物までの照射距離1mにて「MINOLTA T−10」(商品名、ミノルタ社製、照度計)で測定した値である。   The light intensity is obtained by measuring the center of the light beam emitted from the lamp with the light meter at the predetermined distance. Examples of the light meter that can be used for measuring the light intensity at a wavelength of 365 nm include “UNIMETER UIT-150 TYPE UIT-150A” (trade name, manufactured by USHIO INC.), And the light amount that can be used for measuring the light intensity at a wavelength of 800 nm. Examples of the total include “MODEL I400A” (trade name, manufactured by INTERNIONAL LIGHT INC.). The illuminance is a value obtained by measuring the center of the emitted light with “MINOLTA T-10” (trade name, manufactured by Minolta, Inc., illuminometer) at an irradiation distance of 1 m from the lamp to the irradiated object.

本発明方法においては、塗膜に相関色温度が5000K以下の光線を照射するにあたり、フィルターを介して光線を照射することが望ましい。フィルターを介することにより照射される光線の散乱を抑制し、被照射物に対する照度を均一化することができ、塗膜の色調をより正確に評価することが可能である。
上記フィルターとしては、例えば通常のガラス原料に微量の鉄、ニッケル、コバルト、
セレン等の金属を加え着色した熱線吸収板ガラス、フロート板ガラスの表面に反射率の高い金属酸化物の膜をコーティングした熱線反射板ガラス、表面に研磨剤である砂を圧縮エアーによってガラス表面に吹きつけたフロスト加工ガラスが使用できる。
In the method of the present invention, it is desirable to irradiate a light beam through a filter when irradiating the coating film with a light beam having a correlated color temperature of 5000 K or less. By passing through the filter, scattering of the irradiated light can be suppressed, the illuminance to the irradiated object can be made uniform, and the color tone of the coating film can be evaluated more accurately.
As the filter, for example, a small amount of iron, nickel, cobalt,
Heat-absorbing plate glass colored by adding metal such as selenium, heat-reflecting plate glass coated with a highly reflective metal oxide film on the surface of float plate glass, sand as an abrasive was sprayed on the glass surface with compressed air Frosted glass can be used.

相関色温度が5000K以下の光線の存在下で塗膜面の色調を判定する方法としては、目視による方法、測定器を使用する方法等が挙げられる。また、上記ランプから塗膜面までの照射距離は、10cm以上、好ましくは30〜200cm程度であることが望ましく、塗膜の種類等に応じて適宜調整できる。   Examples of the method for determining the color tone of the coating film surface in the presence of a light beam having a correlated color temperature of 5000 K or less include a visual method and a method using a measuring instrument. The irradiation distance from the lamp to the coating film surface is desirably 10 cm or more, preferably about 30 to 200 cm, and can be appropriately adjusted according to the type of coating film.

以下、実施例を挙げて本発明を詳細に説明する。
図1は本発明に用いられる光照射装置の一例を示す側面概略図である。
図2は本発明に用いられる光照射装置に具備されるランプの一例を示す概略図である。
図1において光照射装置1は、ランプ2、ミラー3及びレンズ4を備えた照射器5が、可動式の支持支柱6に昇降自在に装着された構造をしている。ランプ2は、相関色温度が4300Kであり、365nmの波長において照射距離20cmにおける光強度が3mW/cm2程度であり、さらに800nmの波長において、照射距離10cmにおける光強
度が、150mW/cm2程度である光線を放射するセラミックメタルハライドランプで
ある。両面フロスト加工されたガラス製のフィルター7はレンズ4前面に取り付けられ、着脱可能となっており、照射器5からの発光面をカバーするように設置可能である。
Hereinafter, the present invention will be described in detail with reference to examples.
FIG. 1 is a schematic side view showing an example of a light irradiation apparatus used in the present invention.
FIG. 2 is a schematic view showing an example of a lamp provided in the light irradiation apparatus used in the present invention.
1, the light irradiation device 1 has a structure in which an irradiator 5 having a lamp 2, a mirror 3 and a lens 4 is mounted on a movable support column 6 so as to be movable up and down. Lamp 2 is a correlated color temperature 4300K, the light intensity in the irradiation distance 20cm in 365nm wavelength is about 3 mW / cm 2, still at a wavelength of 800 nm, the light intensity in the irradiation distance 10cm is, 150 mW / cm 2 of about This is a ceramic metal halide lamp that emits a light beam. The glass filter 7 subjected to double-side frosting is attached to the front surface of the lens 4 and is detachable, and can be installed so as to cover the light emitting surface from the irradiator 5.

図2においてランプ2は、発光管21を覆うように外管22が被さった2重管構造をしている。発光管21はセラミック製であり、この発光管21内に、所定の発光物質である水銀やナトリウム等が封入され、当該発光管21に続く両端には封止管が形成されている。
外管22は、熔融石英ガラス製であり、発光管21を覆うように形成され、外管22の一端部においてシール部23が形成されて、外管22内に発光管21が密閉状態で配置されている。また、外管22と発光管21の間の空間は窒素が充填されている。
In FIG. 2, the lamp 2 has a double tube structure in which an outer tube 22 is covered so as to cover the arc tube 21. The arc tube 21 is made of ceramic, and a predetermined luminescent substance such as mercury or sodium is enclosed in the arc tube 21, and sealing tubes are formed at both ends following the arc tube 21.
The outer tube 22 is made of fused silica glass, is formed so as to cover the arc tube 21, a seal portion 23 is formed at one end of the outer tube 22, and the arc tube 21 is disposed in a sealed state in the outer tube 22. Has been. Further, the space between the outer tube 22 and the arc tube 21 is filled with nitrogen.

上記熔融石英ガラスは、180nmの光線において、55%の透過率、220nmの光において83%の透過率、300nmの光線において93%の透過率を有している。
発光管22に続く封止管からは、外部に突出する外部リード棒が外管22内の内部リード24に接続されている。
さらに、外管22のシール部23には、接着剤によって、セラミック製のベース25が固着され、当該ベース25には内部リード24に電気的に接続された給電ピン26が設けられている。
The fused silica glass has a transmittance of 55% at a light beam of 180 nm, a transmittance of 83% at a light beam of 220 nm, and a transmittance of 93% at a light beam of 300 nm.
From the sealing tube that follows the arc tube 22, an external lead rod that protrudes to the outside is connected to the internal lead 24 in the outer tube 22.
Further, a ceramic base 25 is fixed to the seal portion 23 of the outer tube 22 by an adhesive, and a power supply pin 26 electrically connected to the internal lead 24 is provided on the base 25.

実施例1
試験塗板として、表1に示す各着色塗板を用意した(塗色は、青系カラーチップ、シルバーメタリック、3コートパール、青ソリッドの4色)。ついで、各試験塗板について、各塗色に対応する色見本を各試験塗板近傍に配置させ、照射距離100cmにて各試験塗板とそれに対応する各色見本とを上記ランプを具備する光照射装置で光照射せしめ、該塗膜の色調について評価した。
Example 1
As the test coating plate, each colored coating plate shown in Table 1 was prepared (the coating colors were four colors of blue color chip, silver metallic, 3-coat pearl, and blue solid). Next, for each test coating plate, a color sample corresponding to each coating color is arranged in the vicinity of each test coating plate, and each test coating plate and each corresponding color sample are irradiated with a light irradiation apparatus equipped with the lamp at an irradiation distance of 100 cm. Irradiation was performed, and the color tone of the coating film was evaluated.

実施例2〜3及び比較例1〜3
実施例1において、照射条件を下記表1に記載の通りとする以外は、上記実施例1と同様にして、各試験塗板の色調を判定した。結果を表1に併せて示す。
Examples 2-3 and Comparative Examples 1-3
In Example 1, the color tone of each test coated plate was determined in the same manner as in Example 1 except that the irradiation conditions were as described in Table 1 below. The results are also shown in Table 1.

Figure 2005028359
Figure 2005028359

(注1)青系カラーチップ:「レタンPGハイブリッドカラーガイド」(商品名、関西ペイント社製、カラー原色ガイドブック)の638ディープブルー。
(注2)シルバーメタリック:シルバーメタリック塗膜(「レタンPGハイブリッドIII メタリックホワイト」、関西ペイント社製、商品名、アルミニウム顔料含有塗料によ
る塗膜)とクリヤー塗膜(「レタンPGマルチクリヤーHx(Q)ベース」(商品名、関西ペイント社製)100重量部、「レタンPGマルチクリヤーHxスタンダード硬化剤」(商品名、関西ペイント社製)50重量部及び「PGハイブリッドシンナー20」(商品名、関西ペイント社製)20重量部を使用直前に混合したクリヤー塗料による塗膜)を順次形成してなる複層塗膜。
(Note 1) Blue color chip: 638 deep blue of “Letan PG Hybrid Color Guide” (trade name, color primary color guide book by Kansai Paint Co., Ltd.).
(Note 2) Silver metallic: Silver metallic coating ("Letane PG Hybrid III metallic white", manufactured by Kansai Paint Co., Ltd., trade name, coating with aluminum pigment-containing coating) and clear coating ("Letane PG Multi Clear Hx (Q) base) "(Trade name, manufactured by Kansai Paint Co., Ltd.) 100 parts by weight," Letane PG Multiclear Hx Standard Curing Agent "(trade name, manufactured by Kansai Paint Co., Ltd.) 50 parts by weight and" PG Hybrid Thinner 20 "(trade name, Kansai Paint Co., Ltd.) (Manufactured) A multilayer coating film in which 20 parts by weight of a clear coating film mixed immediately before use is sequentially formed.

(注3)3コートパール:着色ベース塗膜(「レタンPGハイブリッド ホワイト」、商品名、関西ペイント社製、白系顔料含有塗料による塗膜)、パール塗膜(「レタンPG217Lパールリキッドホワイト」、商品名、関西ペイント社製、マイカ顔料含有塗料による塗膜)、クリヤー塗膜(「レタンPGマルチクリヤーHx(Q)ベース」(商品名、関西ペイント社製)100重量部、「レタンPGマルチクリヤーHxスタンダード硬化剤」(商品名、関西ペイント社製)50重量部及び「PGハイブリッドシンナー20」(商品名、関西ペイント社製)20重量部を使用直前に混合したクリヤー塗料による塗膜)を順次形成してなる複層塗膜。   (Note 3) 3-Coated Pearl: Colored base paint film (“Letane PG Hybrid White”, trade name, paint film made by Kansai Paint Co., Ltd.), Pearl paint film (“Letane PG217L Pearl Liquid White”, product Name, manufactured by Kansai Paint Co., Ltd., paint film with mica pigment-containing paint), clear coating film ("Retan PG Multi Clear Hx (Q) Base" (trade name, manufactured by Kansai Paint Co., Ltd.) 100 parts by weight, "Retan PG Multi Clear Hx" Sequentially formed 50 parts by weight of “standard curing agent” (trade name, manufactured by Kansai Paint Co., Ltd.) and 20 parts by weight of “PG Hybrid Thinner 20” (trade name, manufactured by Kansai Paint Co., Ltd.) with a clear paint mixed immediately before use. A multi-layer coating film.

(注4)青ソリッド:青系着色ベース塗膜(「レタンPGハイブリッドG38ディープブルー」、商品名、関西ペイント社製、青系顔料含有塗料による塗膜)、クリヤー塗膜(「レタンPGマルチクリヤーHx(Q)ベース」(商品名、関西ペイント社製)100重量部、「レタンPGマルチクリヤーHxスタンダード硬化剤」(商品名、関西ペイント社製)50重量部及び「PGハイブリッドシンナー20」(商品名、関西ペイント社製)20重量部を使用直前に混合したクリヤー塗料による塗膜)を順次形成してなる複層塗膜。
評価項目
(*1)色味評価:青ソリッド色の色見本として「ABI II」(商品名、色見本、関西ペイント社製)の塗色番号トヨタ082を使用し、色味(赤がかった青、黄みがかった青など)について、上記青系カラーチップと該色見本とを目視で対比した。
(Note 4) Blue solid: Blue-based colored base coating ("Letan PG Hybrid G38 Deep Blue", trade name, manufactured by Kansai Paint Co., Ltd.) 100 parts by weight of “Hx (Q) base” (trade name, manufactured by Kansai Paint), 50 parts by weight of “Letane PG Multiclear Hx Standard Curing Agent” (trade name, manufactured by Kansai Paint) and “PG Hybrid Thinner 20” (product) (Name, manufactured by Kansai Paint Co., Ltd.) A multilayer coating film formed by sequentially forming a coating film (clear coating mixed with 20 parts by weight immediately before use).
Evaluation item (* 1) Color evaluation: As a blue solid color swatch, paint color number Toyota 082 of “ABI II” (trade name, color swatch, manufactured by Kansai Paint Co., Ltd.) is used, and the color (reddish blue) The blue color chip was visually compared with the color sample.

○:青系カラーチップと色見本とで色味について違いがわかりやすく、目視評価がしやすい、×:青系カラーチップと色見本とで色味について違いがわかりづらく、目視評価がしにくい。
(*2)アルミ配向性:シルバーメタリックの色見本として「ABI II」(商品名、色見本、関西ペイント社製)の塗色番号トヨタ199を使用し、アルミ顔料の大きさや向きについて上記シルバーメタリックの試験塗板と該色見本とを目視で対比した。
○: The difference in color between the blue color chip and the color swatch is easy to understand and easy to evaluate visually. ×: The difference in color between the blue color chip and the color swatch is difficult to understand, and the visual evaluation is difficult.
(* 2) Aluminum orientation: Using the paint color number Toyota 199 of “ABI II” (trade name, color sample, manufactured by Kansai Paint Co., Ltd.) as a color sample of silver metallic, the above-mentioned silver metallic test for the size and orientation of aluminum pigment The coated plate and the color sample were compared visually.

◎:アルミ顔料の大きさや向きについて、試験塗板と色見本とで違いが非常にわかりや
すく、目視評価が非常にしやすい、○:アルミ顔料の大きさや向きについて、試験塗板と色見本とで違いがわかりやすく目視評価がしやすい、○△:アルミ顔料の大きさや向きについて、試験塗板と色見本とで違いを確認することができ、目視評価可能である、△:アルミ顔料の大きさや向きについて、塗板と色見本とで違いがわかりにくく、目視評価が若干しづらい。×:アルミ顔料の大きさや向きについて、塗板と色見本とで違いが目視評価によりできない。
◎: About the size and orientation of the aluminum pigment, the difference between the test coating plate and the color sample is very easy to understand, and visual evaluation is very easy. ○: About the size and direction of the aluminum pigment, there is a difference between the test coating plate and the color sample. Easy to understand and easy to visually evaluate. ○ △: The size and orientation of the aluminum pigment can be confirmed by the difference between the test coating plate and the color sample, and visual evaluation is possible. △: About the size and orientation of the aluminum pigment. The difference between the coated plate and the color sample is difficult to understand, and the visual evaluation is slightly difficult. X: Regarding the size and orientation of the aluminum pigment, a difference between the coated plate and the color sample cannot be visually evaluated.

(*3)パール感:3コートパールの色見本として「ABI II」(商品名、色見本、関西ペイント社製)の塗色番号トヨタ051を使用し、パール顔料の大きさや光照射方向の変化による色味の変化について、3コートパールの試験塗板と該色見本とを目視で対比した。
◎:パール顔料の大きさや光照射方向の変化による色味の変化について、試験塗板と色見本とで違いが非常にわかりやすく、目視評価が非常にしやすい、○:パール顔料の大きさや光照射方向の変化による色味の変化について、試験塗板と色見本とで違いがわかりやすく、目視評価がしやすい、○△:パール顔料の大きさや光照射方向の変化による色味の変化について、試験塗板と色見本とで違いが確認でき、目視評価が可能である、△:パール顔料の大きさや光照射方向の変化による色味の変化について、試験塗板と色見本とで違いがわかりづらく、目視評価が若干しにくい、×:パール顔料の大きさや光照射方向の変化による色味の変化について、試験塗板と色見本とで違いが目視評価によりできない。
(* 3) Pearl feeling: Uses paint color number Toyota 051 of “ABI II” (trade name, color swatch, manufactured by Kansai Paint Co., Ltd.) as a color swatch for 3-coat pearl, and changes in the size and direction of light irradiation of pearl pigment With respect to the change in color due to, the test coat plate of 3 coat pearl and the color sample were compared visually.
A: The change in color due to the change in the size of the pearl pigment and the direction of light irradiation is very easy to see the difference between the test coating plate and the color sample, and the visual evaluation is very easy. ○: The size of the pearl pigment and the direction of light irradiation Regarding the change in color due to the change in color, the difference between the test coating plate and the color sample is easy to understand and easy to visually evaluate. ○ △: About the change in color due to the change in the size of the pearl pigment and the direction of light irradiation Differences can be confirmed with the color swatches, and visual evaluation is possible. △: Regarding the change in color due to changes in the size of the pearl pigment and the direction of light irradiation, it is difficult to see the difference between the test coating plate and the color swatches. Slightly difficult, x: Regarding the change in color due to the change in the size of the pearl pigment and the light irradiation direction, the difference between the test coating plate and the color sample cannot be determined by visual evaluation.

(*4)透明性:青ソリッド色の見本として「ABI II」(商品名、色見本、関西ペイント社製)の塗色番号トヨタ082を使用し、透明性について、青ソリッド色の試験塗板と該色見本とを目視で対比した。
◎:透明性について、試験塗板と色見本とで違いが非常にわかりやすく、目視評価が非常にしやすい。○:透明性について、試験塗板と色見本とで違いがわかりやすく、目視評価がしやすい、△:透明性について、試験塗板と色見本とで違いが若干わかりにくく、目視評価がしづらい、×:透明性について、試験塗板と色見本とで違いが目視評価によりできない。
(* 4) Transparency: Blue solid color sample “ABI II” (trade name, color sample, manufactured by Kansai Paint Co., Ltd.) is used as paint color number Toyota 082. The color sample was visually compared.
A: Regarding transparency, the difference between the test coated plate and the color sample is very easy to understand, and visual evaluation is very easy. ○: Regarding transparency, the difference between the test coating plate and the color sample is easy to understand, and visual evaluation is easy. Δ: Regarding transparency, the difference between the test coating plate and the color sample is slightly difficult to understand, and visual evaluation is difficult. × : Regarding the transparency, a difference between the test coating plate and the color sample cannot be made by visual evaluation.

塗料やインク、化粧品などによって形成される塗膜の色調を判定する用途に適用可能である。   The present invention can be applied to the use of determining the color tone of a coating film formed with paint, ink, cosmetics, or the like.

図1は、本発明方法に用いられる光照射装置の構成を説明する概略図である。FIG. 1 is a schematic diagram illustrating the configuration of a light irradiation apparatus used in the method of the present invention. 図2は、本発明方法に用いられる光照射装置のランプの構成を説明する概略図である。FIG. 2 is a schematic diagram illustrating the configuration of the lamp of the light irradiation device used in the method of the present invention.

符号の説明Explanation of symbols

1 光照射装置
2 ランプ
21 発光管
22 外管
23 シール部
24 リード
25 ベース
26 給電ピン
3 ミラー
4 レンズ
5 照射器
6 支持支柱
7 フィルター
DESCRIPTION OF SYMBOLS 1 Light irradiation apparatus 2 Lamp 21 Light emission tube 22 Outer tube 23 Seal part 24 Lead 25 Base 26 Feeding pin 3 Mirror 4 Lens 5 Irradiator 6 Supporting support 7 Filter

Claims (4)

塗膜に、相関色温度が5000K以下である光線を放射するランプを具備する光照射装置を用いて、相関色温度が5000K以下である光線を照射することを特徴とする塗膜の色調を判定する方法。   The color tone of the coating film is characterized by irradiating the coating film with a light beam having a correlated color temperature of 5000 K or less by using a light irradiation device including a lamp that emits a light beam having a correlated color temperature of 5000 K or less. how to. 塗膜が、その成分の一部として光輝性顔料を含有する請求項1に記載の塗膜の色調を判定する方法。   The method for judging the color tone of a coating film according to claim 1, wherein the coating film contains a luster pigment as part of its components. ランプが、セラミックメタルハライドランプである請求項1または2に記載の塗膜の色調を判定する方法。   The method for determining the color tone of a coating film according to claim 1 or 2, wherein the lamp is a ceramic metal halide lamp. 塗膜が自動車補修塗膜である請求項1ないし3のいずれか1項に記載の塗膜の色調を判定する方法。   The method for determining the color tone of a coating film according to any one of claims 1 to 3, wherein the coating film is an automobile repair coating film.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016043343A (en) * 2014-08-26 2016-04-04 株式会社アペックス Automobile coating method and coating dedicated construction booth
EP2283332B1 (en) 2008-05-28 2020-12-09 Akzo Nobel Coatings International B.V. Method for determination of a matching colour variant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000304696A (en) * 1999-04-16 2000-11-02 Kansai Paint Co Ltd Quantitative evaluation method for brilliancy feeling of paint film
JP2001318000A (en) * 2000-03-02 2001-11-16 Kansai Paint Co Ltd Method of judging toning end point
WO2002091428A2 (en) * 2001-05-08 2002-11-14 Koninklijke Philips Electronics N.V. Ceramic metal halide lamps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000304696A (en) * 1999-04-16 2000-11-02 Kansai Paint Co Ltd Quantitative evaluation method for brilliancy feeling of paint film
JP2001318000A (en) * 2000-03-02 2001-11-16 Kansai Paint Co Ltd Method of judging toning end point
WO2002091428A2 (en) * 2001-05-08 2002-11-14 Koninklijke Philips Electronics N.V. Ceramic metal halide lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2283332B1 (en) 2008-05-28 2020-12-09 Akzo Nobel Coatings International B.V. Method for determination of a matching colour variant
JP2016043343A (en) * 2014-08-26 2016-04-04 株式会社アペックス Automobile coating method and coating dedicated construction booth

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