JP3234753B2 - Method for judging color tone of bright pigment-containing coating film - Google Patents
Method for judging color tone of bright pigment-containing coating filmInfo
- Publication number
- JP3234753B2 JP3234753B2 JP23698995A JP23698995A JP3234753B2 JP 3234753 B2 JP3234753 B2 JP 3234753B2 JP 23698995 A JP23698995 A JP 23698995A JP 23698995 A JP23698995 A JP 23698995A JP 3234753 B2 JP3234753 B2 JP 3234753B2
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- hue
- saturation
- difference
- lightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光輝顔料を含有す
る塗膜面の色調を高精度に判定することのできる光輝顔
料含有塗膜の色調判定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for determining the color tone of a glitter pigment-containing coating film, which can determine the color tone of a glitter pigment-containing coating film with high accuracy.
【０００２】[0002]
【従来の技術】所望のアピアランスを有した製品を得る
ために、例えば、車両ボデイ等の塗膜面の色調を判定す
る作業は、極めて重要である。このような判定作業は、
従来、熟練した作業員が、基準となるパッチの色調と塗
装された塗膜面の色調とを視覚的に比較することで行っ
ていた。2. Description of the Related Art In order to obtain a product having a desired appearance, it is extremely important to determine the color tone of a coating surface of a vehicle body or the like. Such a judgment work is
Conventionally, a skilled worker visually compares the color tone of a reference patch with the color tone of a painted film surface.
【０００３】ところで、このような視覚による判定作業
は、相当に熟練を要するため、最近では、分光測色計を
用いて色調測定を行うようにしたものがある。しかしな
がら、単に分光測色計を用いただけでは、ソリッド塗料
の塗膜面の色調測定は可能であるが、アルミフレーク等
を含有するメタリック塗料のように、光輝顔料を含有す
る塗料を用いた塗膜面の色調を正確に測定することはで
きない。[0003] Incidentally, such a visual judgment work requires considerable skill, and recently, there has been a technique for performing color tone measurement using a spectrophotometer. However, simply by using a spectrophotometer, it is possible to measure the color tone of the coated surface of a solid paint, but a paint film containing a bright pigment, such as a metallic paint containing aluminum flakes, etc. The color tone of the surface cannot be measured accurately.
【０００４】図３Ａ、図３Ｂは、ワーク上に形成された
メタリック塗膜の構成を示す。このメタリック塗膜は、
中塗り部２と、前記中塗り部２の上に形成されるベース
コート部４と、前記ベースコート部４の上に形成される
クリヤ部６とからなり、前記ベースコート部４には、ア
ルミフレーク等の光輝顔料Ａが含まれている。この場
合、前記光輝顔料Ａの配向状態によって反射光の測定値
が異なる、いわゆる、「フリップ−フロップ」効果が生
じる。FIGS. 3A and 3B show the structure of a metallic coating film formed on a work. This metallic coating is
The base coat part 2 includes a middle coat part 2, a base coat part 4 formed on the middle coat part 2, and a clear part 6 formed on the base coat part 4. The base coat part 4 is made of aluminum flake or the like. Bright pigment A is included. In this case, a so-called “flip-flop” effect occurs in which the measured value of the reflected light varies depending on the orientation state of the bright pigment A.
【０００５】そこで、前記のような光輝顔料を含有する
塗料を用いた塗膜面の色調を測定する方法として、例え
ば、特開昭６１−６１０４２号公報に開示された方法で
は、照明光の塗膜面による反射光を、正反射方向から測
定して１５°、４５°および１１０°の方向で測定し、
前記各反射光の明度のフロップ値を求めるようにしてい
る。すなわち、この従来技術では、明度のフロップ値FL
OPを、各角度における反射光の明度Ｌ* 15、Ｌ* 45およ
びＬ* 110 を用いて、Therefore, as a method of measuring the color tone of a coated film surface using a paint containing a bright pigment as described above, for example, a method disclosed in Japanese Patent Application Laid-Open No. 61-61042 discloses a method of applying illumination light. The reflected light by the film surface is measured in directions of 15 °, 45 ° and 110 ° measured from the regular reflection direction,
The brightness flop value of each reflected light is determined. That is, in this prior art, the flop value FL of the brightness is
OP is calculated using the lightness L * 15 , L * 45 and L * 110 of the reflected light at each angle,
【０００６】[0006]
【数２】 (Equation 2)
【０００７】のようにして求めている。なお、ｋ、ａ、
ｂは、所定の係数である。このフロップ値を用いること
により、観察する方向によって変化する色調の特性を精
度よく求めることを可能としている。[0007] It is determined as follows. Note that k, a,
b is a predetermined coefficient. By using this flop value, it is possible to accurately obtain the characteristics of the color tone that changes depending on the viewing direction.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、前記の
方法では、ソリッド、メタリック、パール等の塗料に対
しては、ある程度良好な測定結果を得ることができる
が、干渉マイカ色、低明度色、その他新規な光輝顔料を
含有する色に対して十分な測定精度が得られるものでは
なかった。However, according to the above-mentioned method, a somewhat good measurement result can be obtained for paints such as solid, metallic, and pearl, but interference mica color, low lightness color, etc. Sufficient measurement accuracy has not been obtained for colors containing the novel bright pigment.
【０００９】本発明は、前記の不具合を解消するもの
で、光輝顔料を含有する種々の塗料からなる塗膜の色調
を高精度且つ効率的に測定して判定することのできる光
輝顔料含有塗膜の色調判定方法を提供することを目的と
する。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides a bright pigment-containing coating film which can determine the color tone of a coating film composed of various paints containing a bright pigment with high precision and efficiency. It is an object of the present invention to provide a color tone determination method.
【００１０】[0010]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明は、光輝顔料を含有する試料塗膜の法線方
向に対して略４５°の方向から照明光を照射して得られ
る反射光を、前記照明光の正反射方向から前記照明光の
入射方向に対して、略１５°、略４５°、および、略７
５°もしくは略１１０°の３方向の角度で測定する第１
ステップと、前記３方向の角度で測定された前記各反射
光から、明度、彩度および色相に対する方向性反射特性
値を求める第２ステップと、基準色調塗膜の明度、彩度
および色相に対する方向性反射特性値と、第２ステップ
で求めた前記方向性反射特性値とから、方向性反射特性
値の明度差、彩度差または色相差の少なくとも１つを求
める第３ステップと、前記明度差、前記彩度差または前
記色相差の少なくとも１つを前記基準色調塗膜の色調特
性に応じて選択し、前記試料塗膜の色調を判定する第４
ステップと、からなり、 前記明度の方向性反射特性値を
Ｌ * FLOP、前記彩度の方向性反射特性値をＣ * FLOP、前記
色相の方向性反射特性値をＨ * FLOPとするとき、Ｌ * FLO
P、Ｃ * FLOPおよびＨ * FLOPを、略１５°の方向で測定し
た明度Ｌ * 15 、彩度Ｃ * 15 、色相Ｈ * 15 、略４５°の方向
で測定した明度Ｌ * 45 、彩度Ｃ * 45 、色相Ｈ * 45 、略７５
°もしくは略１１０°の方向で測定した明度
Ｌ * 75(110) 、彩度Ｃ * 75(110) 、色相Ｈ * 75(110) を用い
て、 In order to achieve the above-mentioned object, the present invention provides a method comprising irradiating illumination light from a direction substantially at 45 ° to the normal direction of a sample coating film containing a bright pigment. The reflected light from the regular reflection direction of the illumination light to the incident direction of the illumination light by approximately 15 °, approximately 45 °, and approximately 7 °.
First measurement at three angles of 5 ° or approximately 110 °
And a second step of obtaining a directional reflection characteristic value for lightness, saturation, and hue from the respective reflected lights measured at the three angles, and a direction for lightness, saturation, and hue of the reference color tone coating film. A third step of obtaining at least one of a lightness difference, a chroma difference, and a hue difference of the directional reflection characteristic value from the directional reflection characteristic value and the directional reflection characteristic value obtained in the second step; Selecting at least one of the chroma difference or the hue difference according to the color characteristics of the reference color film to determine the color of the sample film;
A step, Tona is, the directional reflection characteristic values of the lightness
L * FLOP, the directional reflection characteristic value of the saturation is C * FLOP,
When the directional reflection characteristic value of the hue is H * FLOP, L * FLO
Measure P, C * FLOP and H * FLOP in the direction of approximately 15 °
Lightness L * 15 , Saturation C * 15 , Hue H * 15 , direction of approximately 45 °
Lightness L * 45 , saturation C * 45 , hue H * 45 , approximately 75
Lightness measured in the direction of ° or approximately 110 °
L * 75 (110), the chroma C * 75 (110), the hue H * 75 a (110) using
hand,
【数６】 と設定して前記第２ステップ以降を行うことを特徴とす
る。(Equation 6) And performing the second and subsequent steps .
【００１１】また、本発明は、光輝顔料を含有する試料
塗膜の法線方向に対して略４５°の方向から照明光を照
射して得られる反射光を、前記照明光の正反射方向から
前記照明光の入射方向に対して、略１５°、略４５°、
および、略７５°もしくは略１１０°の３方向の角度で
測定する第１ステップと、前記３方向の角度で測定され
た前記各反射光と、前記３方向の角度で測定された複数
の基準色調塗膜の各反射光とから、前記基準色調塗膜毎
の色差を求める第２ステップと、前記色差が最小となる
基準色調塗膜を選択する第３ステップと、前記３方向の
角度で測定された前記試料塗膜の前記各反射光から、明
度、彩度および色相に対する方向性反射特性値を求める
第４ステップと、第３ステップで選択された前記基準色
調塗膜の明度、彩度および色相に対する方向性反射特性
値と、第４ステップで求めた前記方向性反射特性値とか
ら、方向性反射特性値の明度差、彩度差または色相差の
少なくとも１つを求める第５ステップと、前記明度差、
前記彩度差または前記色相差の少なくとも１つを、選択
された前記基準色調塗膜の色調特性に応じて選択し、前
記試料塗膜の色調を判定する第６ステップと、からな
り、 前記明度の方向性反射特性値をＬ * FLOP、前記彩度
の方向性反射特性値をＣ * FLOP、前記色相の方向性反射
特性値をＨ * FLOPとするとき、Ｌ * FLOP、Ｃ * FLOPおよび
Ｈ * FLOPを、略１５°の方向で測定した明度Ｌ * 15 、彩度
Ｃ * 15 、色相Ｈ * 15 、略４５°の方向で測定した明度Ｌ *
45 、彩度Ｃ * 45 、色相Ｈ * 45 、略７５°もしくは略１１０
°の方向で測定した明度Ｌ * 75(110) 、彩度Ｃ
* 75(110) 、色相Ｈ * 75(110) を用いて、 Further, the present invention provides a sample containing a bright pigment.
Illumination light is applied from a direction of approximately 45 ° to the normal direction of the coating film.
Reflected light obtained by the irradiation from the regular reflection direction of the illumination light
With respect to the incident direction of the illumination light, approximately 15 °, approximately 45 °,
And at three angles of approximately 75 ° or approximately 110 °
A first step of measuring and measuring at the three angles
Each of the reflected lights and a plurality of reflected lights measured at the three angles.
From each reflected light of the reference color tone coating film,
A second step of obtaining a color difference of
A third step of selecting a reference color coating film;
From each reflected light of the sample coating film measured at an angle,
Finds directional reflection characteristic values for degree, saturation, and hue
A fourth step and the reference color selected in the third step
Directional Reflection Characteristics for Brightness, Saturation and Hue of Toned Film
And the directional reflection characteristic value obtained in the fourth step.
From the brightness difference, saturation difference or hue difference of the directional reflection characteristic value.
A fifth step of obtaining at least one, the brightness difference,
Selecting at least one of the saturation difference or the hue difference
Selected according to the color tone characteristics of the reference color tone coating film,
A sixth step of determining the color tone of the sample coating film;
And The directional reflection characteristic value of the brightness is L * FLOP, saturation
The directional reflection characteristic value of C * FLOP, directional reflection of the hue
Characteristic value is H * When FLOP, L * FLOP, C * FLOP and
H * FLOP is the lightness L measured in the direction of about 15 ° * Fifteen ,saturation
C * Fifteen , Hue H * Fifteen , Lightness L measured in the direction of approximately 45 ° *
45 , Saturation C * 45 , Hue H * 45 About 75 ° or about 110
Lightness L measured in the direction of ° * 75 (110) , Saturation C
* 75 (110) , Hue H * 75 (110) Using,
【数７】 と設定して前記第２ステップ以降を行うことを特徴とす
る。さらに、本発明は、光輝顔料を含有する試料塗膜の
法線方向に対して略４５°の方向から照明光を照射して
得られる反射光の光量が最大となる位置を正反射方向と
し、前記正反射方向から前記照明光の入射方向に対し
て、略１５°、略４５°、および、略７５°もしくは略
１１０°の３方向の角度で前記反射光を測定する第１ス
テップと、 前記３方向の角度で測定された前記各反射光
から、明度、彩度および色相に対する方向性反射特性値
を求める第２ステップと、 基準色調塗膜の明度、彩度お
よび色相に対する方向性反射特性値と、第２ステップで
求めた前記方向性反射特性値とから、方向性反射特性値
の明度差、彩度差または色相差の少なくとも１つを求め
る第３ステップと、 前記明度差、前記彩度差または前記
色相差の少なくとも１つを前記基準色調塗膜の色調特性
に応じて選択し、前記試料塗膜の色調を判定する第４ス
テップと、 からなることを特徴とする。 さらにまた、本
発明は、光輝顔料を含有する試料塗膜の法線方向に対し
て略４５°の方向から照明光を照射して得られる反射光
の光量が最大となる位置を正反射方向とし、前記正反射
方向から前記照明光の入射方向に対して、略１５°、略
４５°、および、略７５°もしくは略１１０°の３方向
の角度で前記反射光を測定する第１ステップと、 前記３
方向の角度で測定された前記各反射光と、前記３方向の
角度で測定された複数の基準色調塗膜の各反射光とか
ら、前記基準色調塗膜毎の色差を求める第２ステップ
と、 前記色差が最小となる基準色調塗膜を選択する第３
ステップと、 前記３方向の角度で測定された前記試料塗
膜の前記各反射光から、明度、彩度および色相に対する
方向性反射特性値を求める第４ステップと、 第３ステッ
プで選択された前記基準色調塗膜の明度、彩度および色
相に対する方向性反射特性値と、第４ステップで求めた
前記方向性反射特性値とから、方向性反射特性値の明度
差、彩度差または色相差の少なくとも１つを求める第５
ステップと、 前記明度差、前記彩度差または前記色相差
の少なくとも１つを、選択された前 記基準色調塗膜の色
調特性に応じて選択し、前記試料塗膜の色調を判定する
第６ステップと、 からなることを特徴とする。 (Equation 7) And performing the second and subsequent steps . Further, the present invention provides a sample coating film containing a bright pigment.
Irradiate the illumination light from a direction of approximately 45 ° with respect to the normal direction.
The position where the amount of the obtained reflected light is maximum is defined as the specular reflection direction.
And from the regular reflection direction to the incident direction of the illumination light.
Approximately 15 °, approximately 45 °, and approximately 75 ° or approximately
A first switch for measuring the reflected light at three angles of 110 °
And the reflected light measured at the angles in the three directions
From the directional reflection characteristic value for lightness, saturation and hue
And the lightness and saturation of the reference color coating film
And directional reflection characteristic values for hue, and in the second step
From the obtained directional reflection characteristic value, the directional reflection characteristic value
Find at least one of lightness difference, saturation difference or hue difference of
A third step, the brightness difference, the saturation difference or the
A color tone characteristic of the reference color tone coating film, wherein at least one of the hue differences is determined
And the fourth step of determining the color tone of the sample coating film
And a step . Furthermore, the book
The invention is directed to the normal direction of the sample coating film containing the bright pigment.
Light obtained by irradiating illumination light from a direction of approximately 45 °
The position where the amount of light is maximum is defined as the specular reflection direction, and the specular reflection
From the direction to the incident direction of the illumination light, approximately 15 °, approximately
45 ° and three directions of approximately 75 ° or approximately 110 °
A first step of measuring the reflected light at an angle, the 3
Each reflected light measured at an angle in the three directions,
Each reflected light of multiple reference color coatings measured at an angle
A second step of calculating a color difference for each of the reference color tone coating films
And a third step of selecting a reference color tone coating film having the minimum color difference.
Step, the sample coating measured at the three angles.
From the respective reflected light of the film, lightness, saturation and hue
A fourth step of obtaining a directional reflection characteristic value;
Brightness, saturation and color of the reference tone coating film selected in the step
Directional reflection characteristic value for the phase and determined in the fourth step
From the directional reflection characteristic value, the brightness of the directional reflection characteristic value
Fifth for calculating at least one of the difference, the saturation difference and the hue difference
Step, the brightness difference, the saturation difference or the hue difference
At least one color before Symbol standard tone coating film selectively in
Select according to tonality characteristics and determine the color tone of the sample coating film
And a sixth step .
【００１２】本発明は、光輝顔料を含有する試料塗膜に
よる反射光を３方向から測定し、その測定値を明度、彩
度および色相に対する方向性反射特性値として求め、前
記各方向性反射特性値と基準色調塗膜の各方向性反射特
性値との差を明度差、彩度差および色相差として求め、
さらに、前記基準色調塗膜の特徴的な色差を選択して判
定を行う。これにより、塗料に応じた正確な判定を行う
ことができる。一方、反射光の最大光量を検出した位置
を正反射方向とし、その位置を基準として、前記照明光
の入射方向に対して略１５°、略４５°、および、略７
５°もしくは略１１０°の３方向の角度で前記反射光を
測定することにより、試料塗膜が曲面の場合であっても
正確な判定を行うことができる。 According to the present invention, reflected light from a sample coating film containing a brilliant pigment is measured from three directions, and the measured values are obtained as directional reflection characteristic values for lightness, saturation and hue. The difference between the value and each directional reflection characteristic value of the reference color tone coating film is obtained as a brightness difference, a saturation difference, and a hue difference,
Further, the determination is made by selecting a characteristic color difference of the reference color tone coating film. This makes it possible to make an accurate determination according to the paint. On the other hand, the position where the maximum amount of reflected light is detected
Is the specular reflection direction, and the illumination light is
About 15 °, about 45 °, and about 7
The reflected light at three angles of 5 ° or approximately 110 °
By measuring, even if the sample coating film is a curved surface
Accurate determination can be made.
【００１３】また、前記方向性反射特性値を求めるのに
先だって、前記反射光の測定値から色差が最小となる基
準色調塗膜を選択することにより、判定対象である試料
塗膜に最も近い基準色調塗膜を設定することができる。Further, prior to obtaining the directional reflection characteristic value, a reference color tone coating film having a minimum color difference is selected from the measured values of the reflected light, thereby obtaining a reference color film closest to the sample coating film to be determined. Tonal coatings can be set.
【００１４】[0014]
【発明の実施の形態】図１は、本発明方法を実施するた
めの測定装置の構成を示す。この装置では、試料塗膜Ｓ
に対して、照明光源１０を前記試料塗膜Ｓの法線から略
４５゜の位置に配設し、前記照明光源１０からの照明光
の反射光の中、正反射光に近い反射光を受光するセンサ
１２を正反射方向から照明光源１０側の略１５゜（１５
゜±１０゜）の位置に配設し、法線方向の反射光を受光
するセンサ１４を正反射方向から略４５゜（４５゜±１
０゜）の位置に配設し、前記照明光源１０の方向の反射
光を受光するセンサ１６を正反射方向から略７５゜（７
５゜±１０゜）もしくは略１１０゜（１１０゜±１０
゜）の位置に配設する。なお、前記センサ１６では、試
料塗膜Ｓの底色を測定することができる。FIG. 1 shows the configuration of a measuring apparatus for carrying out the method of the present invention. In this apparatus, the sample coating S
In contrast, the illumination light source 10 is disposed at a position approximately 45 ° from the normal line of the sample coating film S, and receives reflected light close to regular reflection light from the reflected light of the illumination light from the illumination light source 10. From the specular reflection direction to the illumination light source 10 side by approximately 15 ° (15 °).
The sensor 14 which is disposed at a position of {± 10} and receives the reflected light in the normal direction is approximately 45 ° (45 ± 1) from the regular reflection direction.
0 °), and the sensor 16 for receiving the reflected light in the direction of the illumination light source 10 is approximately 75 ° (7 °) from the regular reflection direction.
5 ゜ ± 10 ゜) or approximately 110 ゜ (110 ゜ ± 10 ゜)
Install in the position of ゜). The sensor 16 can measure the undercolor of the sample coating film S.
【００１５】ここで、照明光源１０を試料塗膜Ｓの法線
方向から３０゜の位置に設定した場合、ソリッド塗料
と、メタリック塗料および白パール塗料とで色彩値が大
きく異なるのに対して、４５゜の位置に設定した場合に
は、その差が小さいという結果が得られた。また、セン
サ１２の位置を正反射位置から２５゜の位置に設定した
場合、メタリック塗料の明度差が小さく、パール塗料の
底色の色差値と目視評価との整合性が低いのに対して、
１５゜に設定した場合には、メタリック塗料の明度、明
度差、パール塗料の色彩値、色差値の整合性が高いとい
う結果が得られた。さらに、センサ１６の位置を正反射
位置から７５゜に設定した場合、メタリック塗料、パー
ル塗料の底色の色彩値の整合性が高く、また、１１０゜
の位置においても、比較的良好な結果が得られた。そこ
で、各センサ１２、１４、１６は、正反射位置からそれ
ぞれ１５゜、４５゜、７５゜もしくは１１０゜の位置に
設定した。Here, when the illumination light source 10 is set at a position of 30 ° from the normal direction of the sample coating film S, the color values of the solid paint, the metallic paint and the white pearl paint differ greatly, When the position was set at 45 °, the result was that the difference was small. When the position of the sensor 12 is set at a position 25 ° from the specular reflection position, the brightness difference of the metallic paint is small, and the consistency between the color difference value of the base color of the pearl paint and the visual evaluation is low.
When the angle was set to 15 °, it was found that the brightness of the metallic paint, the brightness difference, the color value of the pearl paint, and the consistency of the color difference values were high. Further, when the position of the sensor 16 is set at 75 ° from the regular reflection position, the consistency of the color values of the base colors of the metallic paint and the pearl paint is high, and relatively good results are obtained even at the position of 110 °. Obtained. Therefore, the sensors 12, 14, and 16 were set at positions of 15 °, 45 °, 75 °, or 110 ° from the regular reflection position, respectively.
【００１６】なお、前記各センサ１２、１４、１６の位
置を可変に設定しておき、前記センサ１２によって反射
光の最大光量を検出した位置を正反射方向とし、その位
置を基準として各センサ１２、１４、１６の位置を設定
することにより、試料塗膜Ｓが曲面の場合であっても、
容易且つ正確にセンサ１２、１４、１６を位置決めする
ことができる。The positions of the sensors 12, 14, and 16 are variably set, and the position where the maximum amount of reflected light is detected by the sensor 12 is defined as a regular reflection direction. , 14, and 16 are set, even if the sample coating film S is a curved surface,
The sensors 12, 14, 16 can be easily and accurately positioned.
【００１７】次に、このように構成された測定装置を用
いて、試料塗膜Ｓの色調を判定する方法について、図２
に示すフローチャートに基づき説明する。Next, a method for judging the color tone of the sample coating film S using the measuring apparatus thus configured will be described with reference to FIG.
This will be described based on the flowchart shown in FIG.
【００１８】先ず、照明光源１０からの照明光の試料塗
膜Ｓによる反射光を各センサ１２、１４、１６により測
定し（ステップＳ１）、測定された反射光から、ＣＩＥ
Ｌ*ａ* ｂ* 表色系における明度Ｌ * 15 、Ｌ* 45、Ｌ*
75(110) 、色度ａ* 15、ａ* 45、ａ* 75(110)、ｂ* 15、ｂ*
45、ｂ* 75(110) を求める。なお、明度および色度の添
字は、測定角度を表す。First, the reflected light of the illumination light from the illumination light source 10 by the sample coating film S is measured by each of the sensors 12, 14, and 16 (step S1).
Lightness L * 15 , L * 45 , L * in L * a * b * color system
75 (110) , chromaticity a * 15 , a * 45 , a * 75 (110) , b * 15 , b *
45 , find b * 75 (110) . The subscripts of lightness and chromaticity represent measurement angles.
【００１９】次に、前記試料塗膜Ｓの色調に近い基準色
調が既知でない場合（ステップＳ２）、予め準備された
複数の基準色調と各センサ１２、１４、１６によって測
定された前記試料塗膜Ｓの色調との色差ΔＥ15、Δ
Ｅ45、ΔＥ75(110) を計算する（ステップＳ３）。例え
ば、この場合の色差ΔＥ15は、基準色調の明度、色度と
試料塗膜Ｓの明度、色度との差をΔＬ* 15、Δａ* 15、
Δｂ* 15とすると、 ΔＥ15＝（（ΔＬ* 15)2＋（Δａ* 15)2＋（Δｂ* 15)2
)1/2 として求められる。同様にして、ΔＥ45、ΔＥ75(110)
を求め、各色差ΔＥ15、ΔＥ45、ΔＥ75(110) の総和と
しての色差ΔＥが最も小さい基準色調を当該試料塗膜Ｓ
に最も近い基準色調として決定する（ステップＳ４）。Next, when the reference color tone close to the color tone of the sample coating film S is not known (step S2), a plurality of reference color tone prepared in advance and the sample coating film measured by the sensors 12, 14, and 16 are used. Color difference ΔE 15 , Δ from color tone of S
E 45 and ΔE 75 (110) are calculated (step S3). For example, the color difference ΔE 15 in this case is the difference between the lightness and chromaticity of the reference color tone and the lightness and chromaticity of the sample coating film S, ΔL * 15 , Δa * 15 ,
Assuming that Δb * 15 , ΔE 15 = ((ΔL * 15 ) 2 + (Δa * 15 ) 2 + (Δb * 15 ) 2
) Required as 1/2 . Similarly, ΔE 45 , ΔE 75 (110)
The reference color tone having the smallest color difference ΔE as the sum of the color differences ΔE 15 , ΔE 45 , and ΔE 75 (110) is determined as the sample coating film S.
(Step S4).
【００２０】前記の作業を繰り返すことにより、複数の
試料塗膜Ｓを基準色調毎のグループに分け、各グループ
毎に色調の一次判定を行う。表１〜表３は、ブルーグリ
ーンパールの色調からなるグループと、シルバーメタリ
ックの色調からなるグループと、ワインレッドパールの
色調からなるグループとに分類された試料塗膜Ｓを色差
ΔＥの順に配列したものを示す。この場合、試料塗膜Ｓ
の色差ΔＥの順位と目視による評価の順位とがよく一致
している。しかしながら、表４〜表６に示す色差ΔＥが
小さい試料塗膜Ｓに対しては、色差ΔＥの順位と目視に
よる評価の順位とが一致しない場合が生じている。な
お、表１〜表３において、色調の一次判定の評価におけ
る◎は優良、○は良、△は可、×は不良を示すものとす
る。By repeating the above operation, the plurality of sample coating films S are divided into groups for each reference color tone, and the primary judgment of the color tone is performed for each group. Tables 1 to 3 show sample coating films S classified into a group consisting of blue-green pearl colors, a group consisting of silver metallic colors, and a group consisting of wine red pearl colors arranged in the order of color difference ΔE. Is shown. In this case, the sample coating S
Of the color difference ΔE and the order of the visual evaluation match well. However, for the sample coating film S having a small color difference ΔE shown in Tables 4 to 6, the order of the color difference ΔE does not match the order of the visual evaluation. In Tables 1 to 3, in the evaluation of the primary judgment of the color tone, ◎ indicates excellent, は indicates good, Δ indicates acceptable, and × indicates defective.
【００２１】そこで、色差ΔＥが小さい試料塗膜Ｓに対
して、明度、彩度および色相別に方向性反射特性値（以
下、フロップ値という）を求める（ステップＳ６）。こ
の場合、明度のフロップ値Ｌ* FLOP、彩度のフロップ値
Ｃ* FLOP、色相のフロップ値Ｈ* FLOPは、センサ１２で
測定した明度Ｌ* 15、彩度Ｃ* 15、色相Ｈ* 15、センサ
１４で測定した明度Ｌ* 45、彩度Ｃ* 45、色相Ｈ* 45、
センサ１６で測定した明度Ｌ* 75(110) 、彩度Ｃ*
75(110) 、色相Ｈ* 75(110) を用いて、Therefore, a directional reflection characteristic value (hereinafter, referred to as a flop value) is determined for each of the brightness, chroma, and hue of the sample coating film S having a small color difference ΔE (step S6). In this case, the lightness flop value L * FLOP, the saturation flop value C * FLOP, and the hue flop value H * FLOP are the lightness L * 15 , the saturation C * 15 , the hue H * 15 , The lightness L * 45 , the saturation C * 45 , the hue H * 45 ,
Lightness L * 75 (110) , saturation C * measured by sensor 16
Using 75 (110) and hue H * 75 (110) ,
【００２２】[0022]
【数３】 (Equation 3)
【００２３】として求められる。なお、この式は、ＣＩ
ＥＬ* ａ* ｂ* 色差式を改良したＣＭＣ色差式である。Is obtained. Note that this equation is
This is a CMC color difference formula obtained by improving the EL * a * b * color difference formula.
【００２４】次に、前式を用いて算出された各フロップ
値Ｌ* FLOP、Ｃ* FLOP、Ｈ* FLOPと、当該基準色調の各
フロップ値との色差ΔＬ* FLOP、ΔＣ* FLOP、ΔＨ* FL
OPを求めた後（ステップＳ７）、前記基準色調の特徴と
する明度、彩度または色相に係るフロップ値に対応した
色差に所定の重み付けを行い、色差の加重平均を求める
（ステップＳ８）。すなわち、基準色調の明度、彩度お
よび色相に対して設定された重み付け係数をＫL 、
ＫC 、ＫH とすると、加重平均された色差ΔＦは、 ΔＦ＝ＫL ＊ΔＬ* FLOP＋ＫC ＊ΔＣ* FLOP＋ＫH ＊Δ
Ｈ* FLOP として求められる。なお、前記重み付け係数は、例え
ば、ブルーグリーンパールに対しては、ＫL ＝ＫH ＝
１、ＫC ＝０と設定し、シルバーメタリックに対して
は、ＫL ＝１、ＫC ＝ＫH ＝０と設定し、ワインレッド
パールに対しては、ＫL＝ＫC ＝１、ＫH ＝０と設定す
ることにより、色調の判定を自動化することができる。Next, the color difference ΔL * FLOP, ΔC * FLOP, ΔH * between each flop value L * FLOP, C * FLOP, H * FLOP calculated using the above equation and each flop value of the reference tone . FL
After obtaining the OP (step S7), a predetermined weight is applied to the color difference corresponding to the flop value relating to lightness, saturation or hue, which is a feature of the reference color tone, and a weighted average of the color difference is obtained (step S8). That is, the weighting factors set for the brightness, saturation, and hue of the reference tone are K L ,
Assuming K C and K H , the weighted averaged color difference ΔF is ΔF = K L * ΔL * FLOP + K C * ΔC * FLOP + K H * Δ
Required as H * FLOP. Incidentally, the weighting factor, for example, for the blue-green pearl, K L = K H =
1, K C = 0, for silver metallic, K L = 1, K C = K H = 0, and for wine red pearl, K L = K C = 1, K H By setting = 0, the determination of the color tone can be automated.
【００２５】そして、前記色差ΔＦの順に試料塗膜Ｓを
配列し、色調の二次判定を行う（ステップＳ９）。表４
〜表６は、色差ΔＦの順に配列したものを示す。この場
合、目視による評価の順位と色差の加重平均された色差
ΔＦによる順位とが完全に一致している。なお、表４〜
表６において、色調の二次判定の評価における◎は優
良、○は良、△は可、×は不良、××は不可を示すもの
とする。Then, the sample coating films S are arranged in the order of the color difference ΔF, and the secondary judgment of the color tone is performed (step S9). Table 4
Table 6 shows those arranged in the order of the color difference ΔF. In this case, the order of the visual evaluation and the order of the color difference ΔF obtained by performing weighted averaging of the color differences completely match. Table 4-
In Table 6, in the evaluation of the secondary judgment of the color tone, ◎ indicates excellent, ○ indicates good, Δ indicates acceptable, × indicates bad, and XX indicates unacceptable.
【００２６】以上のようにして、光輝顔料を含有する塗
膜の色調を高精度且つ効率的に判定することができる。
なお、試料塗膜Ｓがどの基準色調に属しているのか予め
分かっている場合には、ステップＳ１〜Ｓ５の過程を省
略することができる。As described above, the color tone of a coating film containing a brilliant pigment can be accurately and efficiently determined.
If the reference color tone to which the sample coating film S belongs is known in advance, the steps S1 to S5 can be omitted.
【００２７】[0027]
【表１】 [Table 1]
【００２８】[0028]
【表２】 [Table 2]
【００２９】[0029]
【表３】 [Table 3]
【００３０】[0030]
【表４】 [Table 4]
【００３１】[0031]
【表５】 [Table 5]
【００３２】[0032]
【表６】 [Table 6]
【００３３】[0033]
【発明の効果】以上のように、本発明によれば、光輝顔
料を含有する種々の塗料の方向性反射特性値と、基準色
調の方向性反射特性値との色差を、明度、彩度および色
相別に求め、前記基準色調の特徴とする前記色差から色
調の判定を行うことにより、試料塗膜の色調を高精度且
つ効率的に判定することができる。As described above, according to the present invention, the color difference between the directional reflection characteristic value of various paints containing a brilliant pigment and the directional reflection characteristic value of a reference color tone can be calculated based on lightness, saturation, and the like. The color tone of the sample coating film can be determined with high accuracy and efficiency by determining for each hue and judging the color tone from the color difference which is a feature of the reference color tone.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明方法が適用される測定装置の説明図であ
る。FIG. 1 is an explanatory view of a measuring device to which the method of the present invention is applied.
【図２】本発明方法の実施形態の処理フローチャートで
ある。FIG. 2 is a processing flowchart of an embodiment of the method of the present invention.
【図３】図３Ａ、図３Ｂは、メタリック塗料による反射
状態の説明図である。FIG. 3A and FIG. 3B are explanatory views of a reflection state by a metallic paint.
１０…照明光源 １２、１４、１６
…センサ Ｓ…試料塗膜10. Illumination light source 12, 14, 16
... Sensor S ... Sample coating
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G01J 3/00 - 3/52 G01N 21/27 ＪＩＣＳＴファイル（ＪＯＩＳ) ＷＰＩ／Ｌ（ＱＵＥＳＴＥＬ)Continuation of the front page (58) Fields investigated (Int. Cl. 7 , DB name) G01J 3/00-3/52 G01N 21/27 JICST file (JOIS) WPI / L (QUESTEL)
Claims (5)
対して略４５°の方向から照明光を照射して得られる反
射光を、前記照明光の正反射方向から前記照明光の入射
方向に対して、略１５°、略４５°、および、略７５°
もしくは略１１０°の３方向の角度で測定する第１ステ
ップと、 前記３方向の角度で測定された前記各反射光から、明
度、彩度および色相に対する方向性反射特性値を求める
第２ステップと、 基準色調塗膜の明度、彩度および色相に対する方向性反
射特性値と、第２ステップで求めた前記方向性反射特性
値とから、方向性反射特性値の明度差、彩度差または色
相差の少なくとも１つを求める第３ステップと、 前記明度差、前記彩度差または前記色相差の少なくとも
１つを前記基準色調塗膜の色調特性に応じて選択し、前
記試料塗膜の色調を判定する第４ステップと、 からなり、 前記明度の方向性反射特性値をＬ * FLOP、前記彩度の方
向性反射特性値をＣ * FLOP、前記色相の方向性反射特性
値をＨ * FLOPとするとき、Ｌ * FLOP、Ｃ * FLOPおよびＨ * FL
OPを、略１５°の方向で測定した明度Ｌ * 15 、彩度
Ｃ * 15 、色相Ｈ * 15 、略４５°の方向で測定した明度Ｌ *
45 、彩度Ｃ * 45 、色相Ｈ * 45 、略７５°もしくは略１１０
°の方向で測定した明度Ｌ * 75(110) 、彩度Ｃ
* 75(110) 、色相Ｈ * 75(110) を用いて、 【数１】 と設定して前記第２ステップ以降を行うことを特徴とす
る光輝顔料含有塗膜の色調判定方法。1. A sample coating film containing a brilliant pigment in a normal direction.
On the other hand, it is possible to obtain
Incident light from the specular reflection direction of the illumination light.
About 15 °, about 45 °, and about 75 ° with respect to the direction
Alternatively, the first stage for measuring at an angle in three directions of approximately 110 °
From each reflected light measured at the three angles.
Finds directional reflection characteristic values for degree, saturation, and hue
The second step is to determine the directivity of lightness, saturation and hue of the reference color coating film.
Radiation characteristic value and the directional reflection characteristic obtained in the second step
Value, brightness difference, saturation difference or color of the directional reflection characteristic value
A third step of obtaining at least one of the phase differences; and at least one of the brightness difference, the saturation difference, or the hue difference
One is selected according to the tone characteristics of the reference tone coating film, and
A fourth step of determining the color tone of the sample coating film;And The directional reflection characteristic value of the brightness is L * FLOP, the above saturation
The directional reflection characteristic value is C * FLOP, directional reflection characteristics of the hue
Value H * When FLOP, L * FLOP, C * FLOP and H * FL
OP is a lightness L measured in a direction of approximately 15 °. * Fifteen ,saturation
C * Fifteen , Hue H * Fifteen , Lightness L measured in the direction of approximately 45 ° *
45 , Saturation C * 45 , Hue H * 45 About 75 ° or about 110
Lightness L measured in the direction of ° * 75 (110) , Saturation C
* 75 (110) , Hue H * 75 (110) Using, (Equation 1) And perform the second and subsequent stepsCharacterized by
Method for determining the color tone of a bright pigment-containing coating film.
対して略４５°の方向から照明光を照射して得られる反
射光を、前記照明光の正反射方向から前記照明光の入射
方向に対して、略１５°、略４５°、および、略７５°
もしくは略１１０°の３方向の角度で測定する第１ステ
ップと、 前記３方向の角度で測定された前記各反射光と、前記３
方向の角度で測定された複数の基準色調塗膜の各反射光
とから、前記基準色調塗膜毎の色差を求める第２ステッ
プと、 前記色差が最小となる基準色調塗膜を選択する第３ステ
ップと、 前記３方向の角度で測定された前記試料塗膜の前記各反
射光から、明度、彩度および色相に対する方向性反射特
性値を求める第４ステップと、 第３ステップで選択された前記基準色調塗膜の明度、彩
度および色相に対する方向性反射特性値と、第４ステッ
プで求めた前記方向性反射特性値とから、方向性反射特
性値の明度差、彩度差または色相差の少なくとも１つを
求める第５ステップと、 前記明度差、前記彩度差または前記色相差の少なくとも
１つを、選択された前記基準色調塗膜の色調特性に応じ
て選択し、前記試料塗膜の色調を判定する第６ステップ
と、 からなり、 前記明度の方向性反射特性値をＬ * FLOP、前記彩度の方
向性反射特性値をＣ * FLOP、前記色相の方向性反射特性
値をＨ * FLOPとするとき、Ｌ * FLOP、Ｃ * FLOPおよびＨ * FL
OPを、略１５°の方向で測定した明度Ｌ * 15 、彩度
Ｃ * 15 、色相Ｈ * 15 、略４５°の方向で測定した明度Ｌ *
45 、彩度Ｃ * 45 、色相Ｈ * 45 、略７５°もしくは略１１０
°の方向で測定した明度Ｌ * 75(110) 、彩度Ｃ
* 75(110) 、色相Ｈ * 75(110) を用いて、 【数４】 と設定して前記第２ステップ以降を行うことを特徴とす
る光輝顔料含有塗膜の色調判定方法。2. A sample coating film containing a brilliant pigment in a normal direction.
On the other hand, it is possible to obtain
Incident light from the specular reflection direction of the illumination light.
About 15 °, about 45 °, and about 75 ° with respect to the direction
Alternatively, the first stage for measuring at an angle in three directions of approximately 110 °
The respective reflected lights measured at the angles in the three directions;
Each reflected light of multiple reference tone coatings measured at directional angles
From the above, a second step for obtaining a color difference for each of the reference tone coating films is described.
And a third step of selecting a reference color tone coating film that minimizes the color difference.
And the respective counterparts of the sample coating film measured at the angles in the three directions.
Directional reflection characteristics for lightness, saturation and hue
A fourth step of determining the property value; and the brightness and color of the reference color tone coating film selected in the third step.
Directional reflection characteristic values for degree and hue, and the fourth step
From the directional reflection characteristic value obtained in
At least one of the lightness difference, saturation difference or hue difference
Determining a fifth step, and at least one of the lightness difference, the saturation difference, or the hue difference
One according to the selected tonal characteristics of the reference tonal coating film
6th step of determining the color tone of the sample coating film by selecting
And fromAnd The directional reflection characteristic value of the brightness is L * FLOP, the above saturation
The directional reflection characteristic value is C * FLOP, directional reflection characteristics of the hue
Value H * When FLOP, L * FLOP, C * FLOP and H * FL
OP is a lightness L measured in a direction of approximately 15 °. * Fifteen ,saturation
C * Fifteen , Hue H * Fifteen , Lightness L measured in the direction of approximately 45 ° *
45 , Saturation C * 45 , Hue H * 45 About 75 ° or about 110
Lightness L measured in the direction of ° * 75 (110) , Saturation C
* 75 (110) , Hue H * 75 (110) Using, (Equation 4) And perform the second and subsequent stepsCharacterized by
Method for determining the color tone of a bright pigment-containing coating film.
対して略４５°の方向から照明光を照射して得られる反
射光の光量が最大となる位置を正反射方向とし、前記正
反射方向から前記照明光の入射方向に対して、略１５
°、略４５°、および、略７５°もしくは略１１０°の
３方向の角度で前記反射光を測定する第１ステップと、 前記３方向の角度で測定された前記各反射光から、明
度、彩度および色相に対する方向性反射特性値を求める
第２ステップと、 基準色調塗膜の明度、彩度および色相に対する方向性反
射特性値と、第２ステップで求めた前記方向性反射特性
値とから、方向性反射特性値の明度差、彩度差または色
相差の少なくとも１つを求める第３ステップと、 前記明度差、前記彩度差または前記色相差の少なくとも
１つを前記基準色調塗膜の色調特性に応じて選択し、前
記試料塗膜の色調を判定する第４ステップと、 からなることを特徴とする光輝顔料含有塗膜の色調判定
方法。 3. A sample coating film containing a brilliant pigment in a direction normal to the coating film.
On the other hand, it is possible to obtain
The position where the amount of the emitted light is maximum is defined as the specular reflection direction,
From the reflection direction to the incident direction of the illumination light, approximately 15
°, approximately 45 °, and approximately 75 ° or approximately 110 °
A first step of measuring the reflected light at three angles, and a step of measuring the reflected light at the three angles.
Finds directional reflection characteristic values for degree, saturation, and hue
The second step is to determine the directivity of lightness, saturation and hue of the reference color coating film.
Radiation characteristic value and the directional reflection characteristic obtained in the second step
Value, brightness difference, saturation difference or color of the directional reflection characteristic value
A third step of determining at least one of the phase differences; and at least one of the brightness difference, the saturation difference, or the hue difference.
One is selected according to the tone characteristics of the reference tone coating film, and
A fourth step of determining the color tone of the sample coating film, wherein the color tone determination of the bright pigment-containing coating film is performed.
Method.
対して略４５°の方向から照明光を照射して得られる反
射光の光量が最大となる位置を正反射方向とし、前記正
反射方向から前記照明光の入射方向に対して、略１５
°、略４５°、および、略７５°もしくは略１１０°の
３方向の角度で前記反射光を測定する第１ステップと、 前記３方向の角度で測定された前記各反射光と、前記３
方向の角度で測定された複数の基準色調塗膜の各反射光
とから、前記基準色調塗膜毎の色差を求める第２ステッ
プと、 前記色差が最小となる基準色調塗膜を選択する第３ステ
ップと、 前記３方向の角度で測定された前記試料塗膜の前記各反
射光から、明度、彩度および色相に対する方向性反射特
性値を求める第４ステップと、 第３ステップで選択された前記基準色調塗膜の明度、彩
度および色相に対する方向性反射特性値と、第４ステッ
プで求めた前記方向性反射特性値とから、方向性反射特
性値の明度差、彩度差または色相差の少なくとも１つを
求める第５ステップと、 前記明度差、前記彩度差または前記色相差の少なくとも
１つを、選択された前 記基準色調塗膜の色調特性に応じ
て選択し、前記試料塗膜の色調を判定する第６ステップ
と、 からなることを特徴とする光輝顔料含有塗膜の色調判定
方法。 4. A sample coating film containing a brilliant pigment in a direction normal to the coating film.
On the other hand, it is possible to obtain
The position where the amount of the emitted light is maximum is defined as the specular reflection direction,
From the reflection direction to the incident direction of the illumination light, approximately 15
°, approximately 45 °, and approximately 75 ° or approximately 110 °
A first step of measuring the reflected light at three angles, the respective reflected light measured at the three angles,
Each reflected light of multiple reference tone coatings measured at directional angles
From the above, a second step for obtaining a color difference for each of the reference tone coating films is described.
And a third step of selecting a reference color tone coating film that minimizes the color difference.
And the respective counterparts of the sample coating film measured at the angles in the three directions.
Directional reflection characteristics for lightness, saturation and hue
A fourth step for determining the property value, and the lightness and color of the reference color tone coating film selected in the third step.
Directional reflection characteristic values for degree and hue, and the fourth step
From the directional reflection characteristic value obtained in
At least one of the lightness difference, saturation difference or hue difference
Determining a fifth step, and at least one of the lightness difference, the saturation difference, or the hue difference.
One, according to the color tone characteristic before Symbol standard tone coating film selectively
6th step of determining the color tone of the sample coating film by selecting
And determining the color tone of the bright pigment-containing coating film characterized by comprising
Method.
度の方向性反射特性値Ｌ * FLOP、彩度の方向性反射特性
値Ｃ * FLOP、色相の方向性反射特性値Ｈ * FLOPは、略１５
°の方向で測定した明度Ｌ * 15 、彩度Ｃ * 15 、色相
Ｈ * 15 、略４５°の方向で測定した明度Ｌ * 45 、彩度Ｃ *
45 、色相Ｈ * 45 、略７５°もしくは略１１０°の方向で
測定した明度Ｌ * 75(110) 、彩度Ｃ * 75(110) 、色相Ｈ *
75(110) を用いて、 【数５】 として設定することを特徴とする光輝顔料含有塗膜の色
調判定方法。 5. The method according to claim 3, wherein
Directional reflection characteristic value L * FLOP, saturation directional reflection characteristic
The value C * FLOP and the hue directional reflection characteristic value H * FLOP are approximately 15
Lightness L * 15 , saturation C * 15 , hue measured in the direction of °
H * 15 , lightness L * 45 measured in a direction of approximately 45 ° , saturation C *
45 , Hue H * 45 , in the direction of approximately 75 ° or approximately 110 °
Measured lightness L * 75 (110) , saturation C * 75 (110) , hue H *
Using 75 (110) , The color of the bright pigment-containing coating film, characterized by being set as
Key determination method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23698995A JP3234753B2 (en) | 1994-09-20 | 1995-09-14 | Method for judging color tone of bright pigment-containing coating film |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22483494 | 1994-09-20 | ||
| JP6-224834 | 1994-09-20 | ||
| JP23698995A JP3234753B2 (en) | 1994-09-20 | 1995-09-14 | Method for judging color tone of bright pigment-containing coating film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08145797A JPH08145797A (en) | 1996-06-07 |
| JP3234753B2 true JP3234753B2 (en) | 2001-12-04 |
Family
ID=26526290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23698995A Expired - Fee Related JP3234753B2 (en) | 1994-09-20 | 1995-09-14 | Method for judging color tone of bright pigment-containing coating film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3234753B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6479161B1 (en) | 1997-06-06 | 2002-11-12 | Daikin Industries, Ltd. | Fluorine-containing adhesive and adhesive film and laminated article made by using the same |
| US6479578B2 (en) | 1995-10-27 | 2002-11-12 | Daikin Industries, Ltd. | Resin composition |
| WO2018181745A1 (en) * | 2017-03-31 | 2018-10-04 | 関西ペイント株式会社 | Coating color identifying device, coating color identifying method, coating color identifying program, and computer-readable medium containing coating color identifying program |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3422194B2 (en) * | 1996-11-19 | 2003-06-30 | 日産自動車株式会社 | Color measuring device |
| US6952265B2 (en) * | 2003-06-12 | 2005-10-04 | E. I. Du Pont De Nemours And Company | Method of characterization of surface coating containing metallic flakes and device used therein |
| DE102004034160A1 (en) * | 2004-07-15 | 2006-02-09 | Byk Gardner Gmbh | Device for studying optical surface properties |
| JP2010519385A (en) * | 2007-02-21 | 2010-06-03 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Automatic selection of colorants and flakes that match the color and appearance of the coating |
| JP5640812B2 (en) * | 2011-02-24 | 2014-12-17 | 日産自動車株式会社 | Paint color evaluation method |
| JP6075824B2 (en) * | 2012-04-16 | 2017-02-08 | Ｌｕｍｉｏｔｅｃ株式会社 | Method and apparatus for evaluating light source color angle dependency of organic EL lighting panel |
| US9607403B2 (en) | 2014-10-28 | 2017-03-28 | Ppg Industries Ohio, Inc. | Pigment identification of complex coating mixtures with sparkle color |
| JP6597487B2 (en) * | 2016-06-15 | 2019-10-30 | 住友金属鉱山株式会社 | Electrode substrate film and method for producing the same |
-
1995
- 1995-09-14 JP JP23698995A patent/JP3234753B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| Ｓｕｒｆ．Ｃｏａｔ．Ｉｎｔ．７５［４］（１９９２）ｐ１５０−１５３ |
| 色彩工学コンファレンス論文集Ｖｏｌ．８ｔｈ（１９９１）ｐ３１−３４ |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6479578B2 (en) | 1995-10-27 | 2002-11-12 | Daikin Industries, Ltd. | Resin composition |
| US6479161B1 (en) | 1997-06-06 | 2002-11-12 | Daikin Industries, Ltd. | Fluorine-containing adhesive and adhesive film and laminated article made by using the same |
| US6599997B2 (en) | 1997-06-06 | 2003-07-29 | Daikin Industries, Ltd. | Fluorine-containing adhesive and adhesive film and laminated article made by using same |
| WO2018181745A1 (en) * | 2017-03-31 | 2018-10-04 | 関西ペイント株式会社 | Coating color identifying device, coating color identifying method, coating color identifying program, and computer-readable medium containing coating color identifying program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08145797A (en) | 1996-06-07 |
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