WO2013118868A1 - 塗色の評価方法 - Google Patents

塗色の評価方法 Download PDF

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Publication number
WO2013118868A1
WO2013118868A1 PCT/JP2013/053059 JP2013053059W WO2013118868A1 WO 2013118868 A1 WO2013118868 A1 WO 2013118868A1 JP 2013053059 W JP2013053059 W JP 2013053059W WO 2013118868 A1 WO2013118868 A1 WO 2013118868A1
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WO
WIPO (PCT)
Prior art keywords
paint
color
pigment
light receiving
pigments
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.)
Ceased
Application number
PCT/JP2013/053059
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English (en)
French (fr)
Japanese (ja)
Inventor
晶子 松下
原田　修
竜生 倉持
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Kansai Paint Co Ltd
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Kansai Paint Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kansai Paint Co Ltd filed Critical Kansai Paint Co Ltd
Priority to IN6839DEN2014 priority Critical patent/IN2014DN06839A/en
Priority to JP2013557594A priority patent/JP6139417B2/ja
Priority to EP13747119.9A priority patent/EP2813829B1/en
Priority to CN201380008696.6A priority patent/CN104204741B/zh
Publication of WO2013118868A1 publication Critical patent/WO2013118868A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/504—Goniometric colour measurements, for example measurements of metallic or flake based paints
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/462—Computing operations in or between colour spaces; Colour management systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts

Definitions

  • the present invention relates to a method for evaluating the coating color of a paint containing a color pigment and a bright pigment.
  • paints for example, metallic paints
  • various glitter pigments aluminum flakes, mica flakes, graphite, etc.
  • the color of a coating film obtained by coating such a paint on an automobile outer plate (hereinafter referred to as “paint color” or “metallic color”) changes in appearance depending on the observation angle.
  • a paint color whose color appearance does not change depending on the observation angle is called a “solid color”.
  • the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a coating color evaluation method suitable for evaluating the color development characteristics (coating color) of a paint containing a color pigment and a luster pigment. To do.
  • the paint color evaluation method is a paint color evaluation method including a color pigment and a bright pigment, and the spectral reflectance of the paint film is measured. Then, C * / L *, which is the ratio of lightness L * and chroma C * in the L * C * h color system, is calculated from the spectral reflectance.
  • the C * / L * is obtained for each of a plurality of paint colors, and the value of the C * / L * is expressed on a two-dimensional plane indicated by one coordinate axis. It is preferable to create a chart by arranging a plurality of paint colors.
  • the chart shows the value of C * / L * on the first coordinate axis, the hue angle h in the L * C * h color system or the lightness L *, It is preferable that the second coordinate axis indicates any one parameter selected from the kind of the glitter pigment and the content ratio of the color pigment and the glitter pigment.
  • the spectral reflectance of the coating film in the first light receiving angle region is measured, the spectral reflectance of the coating film in the second light receiving angle region is measured, From the spectral reflectance of the first light receiving angle region and the spectral reflectance of the second light receiving angle region, the lightness L * of the second light receiving angle region and the saturation C * of the first light receiving angle region. It is preferred to calculate the ratio C * / L *.
  • the paint color of a paint made with different colored pigments is measured and mapped using the value of C * / L * on one coordinate axis, ie, the map ( By indicating the value of C * / L * on the chart), the distribution of coordinate points representing the paint colors of paints with different color pigments is less likely to be concentrated on the map (chart).
  • the paint colors of a plurality of paints can be easily arranged and classified, which can contribute to the evaluation of the color development characteristics of the paints, that is, the evaluation of the paint colors.
  • FIG. 6 is a chart created for a plurality of blue-based dark colors with L * at a light receiving angle of 75 ° as a horizontal axis and C * / L * at a light receiving angle of 15 ° as a vertical axis.
  • FIG. 5 is a chart created for a plurality of blue dark color paints with L * at a light receiving angle of 75 ° as the horizontal axis and C * at a light receiving angle of 15 ° as the vertical axis.
  • FIG. 5 is a schematic diagram illustrating a method for measuring spectral reflectance, which is an embodiment of the paint color evaluation method of the present invention.
  • the paint to which the present invention is applied is a paint containing a bright pigment (hereinafter referred to as a bright paint).
  • the glitter pigment is a pigment that changes the appearance of the coating film of the paint in which the glitter pigment is blended depending on the observation angle.
  • Specific examples of such pigments include flaky metal pigments such as aluminum, copper, nickel alloys, and stainless steel, flaky metal pigments whose surfaces are coated with metal oxides, and flaky particles obtained by chemically adsorbing colored pigments on the surface.
  • -Like metal pigments scaly aluminum pigments that have formed an aluminum oxide layer by causing an oxidation-reduction reaction on the surface, plate-like iron oxide pigments in which aluminum is dissolved, glass flake pigments, and the surface is coated with metal or metal oxide Glass flake pigments, glass flake pigments with colored pigment chemisorbed on the surface, interference mica pigments coated with titanium dioxide on the surface, reduced mica pigments with reduced interference mica pigments, colored pigments chemisorbed on the surface, surface Colored mica pigment coated with iron oxide, graphite pigment coated with titanium dioxide on the surface, coated with titanium dioxide on the surface Silica flakes or alumina flake pigments, plate iron oxide pigments, holographic pigments, synthetic mica pigments, cholesteric liquid crystal polymer pigments having a helical structure, and the like oxy bismuth pigments chloride.
  • the glitter paint includes, as a pigment other than the glitter pigment, a general color pigment, for example, an inorganic pigment such as a transparent iron oxide pigment, a composite oxide pigment such as titanium yellow; an azo pigment, a quinacridone pigment , Diketopyrrolopyrrole pigments, perylene pigments, perinone pigments, benzimidazolone pigments, isoindoline pigments, isoindolinone pigments, metal chelate azo pigments, phthalocyanine pigments, anthraquinone pigments, dioxazine pigments , Organic pigments such as selenium pigments and indigo pigments, and colored pigments such as carbon black pigments.
  • a general color pigment for example, an inorganic pigment such as a transparent iron oxide pigment, a composite oxide pigment such as titanium yellow; an azo pigment, a quinacridone pigment , Diketopyrrolopyrrole pigments, perylene pigments, perinone pigments, benzimi
  • the glitter paint can usually contain a resin component as a vehicle.
  • the resin component includes a base resin such as an acrylic resin, a polyester resin, an alkyd resin, and a urethane resin having a crosslinkable functional group such as a hydroxyl group, a melamine resin, a urea resin, a polyisocyanate compound (also a block body). And a resin component using a crosslinking agent in combination.
  • the glitter paint can be prepared by blending a vehicle, a pigment, a solvent (such as an organic solvent or water), and appropriate additives as necessary, and uniformly dispersing the mixture.
  • FIG. 15 shows an embodiment of the paint color evaluation method of the present invention.
  • a coating plate 10 (substrate 5) on which a coating film 20 of glitter paint is formed is prepared, and the illumination light 30 is irradiated from the illumination 40 to the coating plate 10.
  • the angle at which the illumination light 30 enters the coating plate 10 is 45 ° from the direction parallel to the coating plate 10 (45 ° counterclockwise).
  • the reflected light generated when the illumination light 30 is reflected by the coating plate 10 the reflected light traveling in the direction indicated by the symbol RF is regular reflected light.
  • the regular reflection light RF is 45 ° with respect to the normal direction (face) of the coating plate 10 (45 ° counterclockwise).
  • Reflected light reflected at a predetermined clockwise receiving angle (for example, 15 °, 25 °, 45 °, 75 °, 110 in FIG. 15) with respect to the direction RF of the regular reflected light is provided in the multi-angle spectrophotometer.
  • the received light is received by the received light receiving unit.
  • the light receiving angles of 15 ° and 25 ° are highlight regions (first light receiving angle regions), which are angles between the direction RF of the specularly reflected light and the normal direction of the coating plate 10.
  • the light receiving angles of 75 ° and 110 ° are shade regions (second light receiving angle regions), and are 90 degrees clockwise from the normal direction of the coated plate 10 and the direction parallel to the coated plate 10 (the normal direction of the coated plate 10).
  • the light receiving angle of 75 ° is an angle located between the normal direction of the coating plate 10 and the incident direction of the illumination light 30, and the light receiving angle of 110 ° is the incident direction of the illumination light 30.
  • the angle is between the direction parallel to the coating plate 10.
  • a coating film of the glitter paint is prepared, the spectral reflectance is measured at a predetermined light receiving angle, and L * C * h is calculated from the spectral reflectance.
  • C * / L * which is the ratio of lightness L * and chroma C * in the color system, is calculated.
  • C * / L * is obtained for each of the plurality of glitter paints, the value of C * / L * is indicated on one coordinate axis (first coordinate axis), and the other parameters are indicated on another coordinate axis (second coordinate axis).
  • a coordinate point representing the paint colors of a plurality of glitter paints is arranged on a two-dimensional plane indicated by (coordinate axis) to create a chart.
  • C * / L * is used as an axis
  • the dispersal is closer to visual perception than when C * is used as an axis. This is because the maximum value of C * differs depending on L *.
  • the paint color of the glitter paint is not only the difference in observation angle but also the color pigment, glitter pigment, vehicle and other components used in the paint, the difference in the content ratio of these ingredients, the coating method, gloss, film thickness, etc. The difference also depends on the presence or absence of a clear paint layered on the coating film. Therefore, by creating a map for these various factors, it becomes easy to grasp how the paint color changes as the coloring characteristics of the paint.
  • the method for producing the coating film is not particularly limited as long as it can apply a glittering paint having a uniform film thickness on the substrate, but a spray method such as air spray, airless spray, electrostatic spray or the like is preferable.
  • the substrate can be preliminarily formed with a coating film made of an undercoat or an intermediate coat before the glitter paint is applied to the substrate.
  • one or more clear coating films can be formed for the purpose of protecting the coating film.
  • the saturation C * and hue angle h in the L * C * h color system are expressed by the following equation (1) from the color coordinates a * and b * according to the L * a * b * color system defined in JIS Z 8729. ), (2).
  • the hue angle h ranges from 0 to 90 ° if both a * and b * are positive, 90 to 180 ° if a * is negative and b * is positive, a If * and b * are both negative, the range is 180 to 270 °. If a * is positive and b * is negative, the range is 270 to 360 °.
  • the saturation C * and the hue angle h defined by the equations (1) and (2) correspond to the ab chroma (C * ab) and the ab hue angle (hab), respectively, defined in JIS Z 8729. To do.
  • the incident angle when measuring the spectral reflectance is generally 45 ° with respect to the normal direction of the coated plate.
  • the light receiving angle is indicated by an angle (an angle in a plane perpendicular to the coating film surface) with respect to the direction of specular reflection light (reference numeral RF in FIG. 15), and 10 °, 15 °, 25 °, etc. on the highlight side. Examples of the shade side include 75 ° and 110 °.
  • a light receiving angle of 45 ° or the like can be adopted on the face side near the front surface with respect to the coating plate.
  • Spectral reflectance may be measured at a plurality of light receiving angles, and C * / L * of each light receiving angle may be calculated.
  • a multi-angle spectrophotometer MA68II manufactured by Videojet X-Rite can be used as the spectrophotometer.
  • the colored pigment is different in material, structure, particle size, etc.
  • the bright pigment is different in material, structure, particle size, etc.
  • the chart uses the value of C * / L * as one coordinate axis (first coordinate axis), the hue angle h or lightness L * in the L * C * h color system, the type of color pigment (material, structure, grain) Diameter, etc.), type of glitter pigment (material, structure, particle size, etc.), content ratio of colored pigment and glitter pigment, coating method, gloss of the paint, film thickness of the coating film, other than pigments in the paint Any one of parameters selected from the above components and the type of other layers laminated with the coating film can be used as another coordinate axis (second coordinate axis).
  • the created chart can be visualized by displaying it on a color display or printing it on paper or a resin film using a color printer.
  • characters, symbols, and the like indicating names, codes, color codes, and the like can be attached to each coordinate point representing each paint color. This is useful for information transmission and information exchange among engineers, designers, users, and the like.
  • an actual color sample can be plotted.
  • the paint used for the measurement of the spectral reflectance can also be used.
  • the coating color can be changed depending on the coating film thickness, the number of coatings, the presence or absence of a clear coating film, and the like.
  • the coating method, the gloss of the paint, the film thickness of the paint film, the components other than the pigment in the paint, the types of other layers laminated with the paint film, and the like can be shown on another coordinate axis. Further, by calculating C * / L * at a plurality of light receiving angles and creating a chart, it is possible to evaluate the color development characteristics of highlights and shades. Since the spectral reflectance of the coating film can be easily measured even on the coating line, it can be applied to the comparison of coating colors that are actually online.
  • the paint color evaluation method and chart creation method in the first embodiment of the present invention are also used for paint color evaluation of paints that do not contain a luster pigment and paints whose color appearance does not change depending on the observation angle. Applicable.
  • the same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified.
  • the lightness L * and the chroma C * are measured for the light receiving angles with different observation angles, C * / L * is obtained, and the “depth” of the paint is obtained.
  • the sense of depth is a texture that is identified to the observer by two pieces of information of “color” and “depth”.
  • the spectral reflectance of the coating film in the highlight region is measured, and the spectral reflectance of the coating film in the shade region (second light receiving angle region) is measured.
  • the saturation C * at the light receiving angles 15 ° and 25 ° in the highlight area is measured, the lightness L * at the light receiving angles 75 ° and 110 ° in the shade area is measured, and the C * in the highlight area is shaded.
  • the sample was left in a laboratory at a room temperature of about 20 ° C. for 15 minutes, and then heated at 140 ° C. for 30 minutes using a hot air drying furnace to obtain a test coated plate.
  • the glittering paint was prepared by using a hydroxyl group-containing acrylic resin / melamine resin-based organic solvent-type paint as a base paint, and blending a coloring pigment and a glittering pigment therein.
  • As the clear paint a hydroxyl group-containing acrylic resin / melamine resin-based organic solvent type top clear paint was used.
  • the spectral reflectance of the produced coated plate is measured, and the lightness L *, saturation C *, and hue angle h in the L * C * h color system are obtained from the spectral reflectance, C * / L *, which is the ratio of degree C * divided by lightness L *, was calculated.
  • MA68II trade name, multi-angle spectrophotometer, manufactured by Videojet X-Rite Co., Ltd.
  • the incident angle of the illumination light was 45 ° with respect to the coated plate.
  • the light receiving angle is an angle with respect to specular reflection light, and was selected from three types of 15 °, 45 °, and 75 °.
  • red coloring pigments examples are shown below.
  • R1 Hostaperm PinkEB transp. (Product name, CLARIANT, dimethylquinacridone)
  • R2 FASTGEN Super Red 7064B (trade name, manufactured by DIC, unsubstituted quinacridone)
  • R3 Hostaperm PinEG transp.
  • R4 FASTGEN Super Red ATY-TR (trade name, manufactured by DIC, Anthraquinone)
  • R5 Irgadin DPP Rubin TR (trade name, manufactured by BASF, diketopyrrolopyrrole)
  • R6 Irgadin DPP Red BO (trade name, manufactured by BASF, diketopyrrolopyrrole)
  • R7 Palogen RED L3885 (trade name, manufactured by BASF, perylene)
  • R8 Toda Color 130R (trade name, manufactured by Toda Kogyo Co., Ltd., iron oxide)
  • R9 Sicotrans Red L2817 (trade name, manufactured by BASF, iron oxide)
  • a scaly aluminum pigment was used as the bright pigment.
  • A1 Aluminum paste GX-180A (trade name, manufactured by Asahi Kasei Aluminum Co., Ltd., average particle size 16 ⁇ m)
  • A2 Aluminum paste MH-8801 (trade name, manufactured by Asahi Kasei Aluminum Corporation, average particle size 15 ⁇ m)
  • A3 Aluminum paste 5680NS (trade name, manufactured by Toyo Aluminum Co., Ltd., average particle size 8 ⁇ m)
  • A4 Aluminum paste 7640NS (trade name, manufactured by Toyo Aluminum Co., Ltd., average particle size 17 ⁇ m)
  • FIGS. 3A to 3C Charts created with h as the horizontal axis and C * / L * as the vertical axis are shown in FIGS. 3A to 3C. Further, charts created with h as the horizontal axis and C * as the vertical axis are shown in FIGS. 4A to 4C. Each chart was prepared in three ways with light receiving angles of 15 °, 45 °, and 75 °. When C * is the vertical axis, when the light receiving angle is 45 ° or 75 ° (see FIG. 4B and FIG. 4C), although the appearance of the four colors is quite different, the values of C * are close and difficult to distinguish. Results were obtained.
  • FIGS. 7A to 7C Charts created with h as the horizontal axis and C * / L * as the vertical axis are shown in FIGS. 7A to 7C. Further, charts created with h as the horizontal axis and C * as the vertical axis are shown in FIGS. 8A to 8C.
  • Each chart was prepared in three ways with light receiving angles of 15 °, 45 °, and 75 °.
  • R5 tends to decrease the hue angle (increase bluish from red) when the aluminum pigment is increased
  • R9 increases the hue angle (from red) when the aluminum pigment is increased. It can be seen that the hue of R7 hardly changes even when the aluminum pigment is increased.
  • FIG. 9 and 10 show charts created with the mass ratio (concentration) of the pigment as the horizontal axis instead of the hue angle h.
  • the value of C * / L * is the same in FIG. 7B and FIG. 9, and the value of C * is the same in FIG. 8B and FIG.
  • C * is the vertical axis, for example, in the red pigments R7 and R9
  • C * is maximum at the density B (mass ratio 9: 1)
  • the red pigment is more red than the density B.
  • the chart (map) created by the present invention is not limited to an orthogonal coordinate system in which two coordinate axes are orthogonal, and can be displayed in another coordinate system.
  • FIG. 11 is an example of a chart in which the paint colors of a plurality of paints in which aluminum pigments are blended with different red pigments are plotted on the hue circle.
  • a plurality of paints were prepared by blending an aluminum pigment (GX-180A), and the spectral reflectance of the coating film was measured. Created a chart.
  • the compounding amount of the pigment is 3 parts by mass for the red pigment and 12 parts by mass for the aluminum pigment with respect to 100 parts by mass of the resin solid content of the base paint.
  • the radial axis is C * / L * expressed as a percentage, ie C * / L * ⁇ 100.
  • FIG. 12 shows a chart created with a horizontal axis of L * at a light receiving angle of 75 ° and a vertical axis of C * / L * at a light receiving angle of 15 °.
  • a chart created with C * as the vertical axis is shown in FIG.
  • the coating colors B1 to B9 can be obtained by combining a plurality of coloring materials, but the present invention is also effective for comparing actual coating colors by combining a plurality of coloring materials.
  • FIGS. 14A to 14C are tables for comparing the results of obtaining C * / L * of the light receiving angles with different observation angles and the results of visual evaluation of the depth perception by the observer.
  • FIG. 14A is a table
  • FIG. 14B shows the result of five evaluators having evaluated visually about each of 4 types of coating colors
  • FIG. 14C is a table showing C * / L * values and evaluation results for each of the four coating colors.
  • FIG. 14A four types of coating colors (A, B, C, D) were prepared. These four colors are blue metallic paint colors.
  • a coating film was formed on a substrate using four kinds of coating colors by the same method as that of the above-described embodiment, and four coating plates were obtained.
  • MA68II trade name, multi-angle spectrophotometer, manufactured by VideoJet X-Rite Co., Ltd.
  • the spectral reflectance was measured, and the brightness L in the highlight area, face area, and shade area was measured.
  • * And saturation C * were measured.
  • C * 15 means saturation at a light receiving angle of 15 ° (highlight).
  • C * 25 means saturation at a light receiving angle of 25 ° (highlight).
  • C * 45 means saturation at a light receiving angle of 45 ° (face).
  • C * 75 means saturation at a light receiving angle of 75 ° (shade).
  • L * 15 means lightness at a light receiving angle of 15 ° (highlight).
  • L * 25 means lightness at a light receiving angle of 25 ° (highlight).
  • L * 45 means lightness at a light receiving angle of 45 ° (highlight).
  • L * 75 means lightness at a light receiving angle of 75 ° (highlight).
  • C * 15, C * 25, C * 45, C * 75, L * 15, L * 25, L * 45, and L * 75 were determined for four coated plates formed using four types of coating colors. .
  • the five observers are four designers and one engineer who have a design experience of paint colors for automobile exteriors of three years or more.
  • a result of “evaluation value 0” was obtained in which all five observers did not feel a sense of depth.
  • the evaluation value 4,7,3,4,6 by five observers was obtained about the coating plate formed using the coating color B (average value 4.8).
  • evaluation values 10, 10, 7, 8, and 9 by five observers were obtained (average value 8.8).
  • the coating color A has the lowest depth
  • the coating color B has a higher depth than the coating color A
  • the coating color C has a higher depth than the coating color B
  • the coating color C has a greater depth.
  • the depth of paint color D was high, that is, the depth of paint color D was the highest. Therefore, the result that the feeling of depth becomes higher in order of the coating colors A, B, C, and D was obtained.
  • the human eye observes highlights and shades at the same time, and the highlight portion with a large dynamic range remains as the impression of the observer, and the brightness changes. It is thought that the shaded part with less is left as an impression of the observer. So far, it has been disclosed in the literature that a feeling of depth is felt when the saturation is high, and that a feeling of depth is felt in the case of a black paint color without being cloudy in the shade.
  • the present invention in which the sense of depth is evaluated by a numerical value obtained by dividing the saturation of the highlight by the brightness of the shade has not been disclosed so far. It has been clarified for the first time by the present invention that a numerical value obtained by dividing the saturation of the highlight by the brightness of the shade is close to the distance scale of visual evaluation, and a high correlation can be obtained.
  • Substrate 10 ... Paint plate, 20 ... Coating film, 30 ... Illumination light, 40 ... Illumination, RF ... Regular reflection light direction.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectrometry And Color Measurement (AREA)
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  • Application Of Or Painting With Fluid Materials (AREA)
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PCT/JP2013/053059 2012-02-08 2013-02-08 塗色の評価方法 Ceased WO2013118868A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IN6839DEN2014 IN2014DN06839A (2) 2012-02-08 2013-02-08
JP2013557594A JP6139417B2 (ja) 2012-02-08 2013-02-08 塗色の評価方法
EP13747119.9A EP2813829B1 (en) 2012-02-08 2013-02-08 Coating color evaluation method
CN201380008696.6A CN104204741B (zh) 2012-02-08 2013-02-08 涂色的评价方法

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JP2012-025028 2012-02-08
JP2012025028 2012-02-08

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JP (1) JP6139417B2 (2)
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MY (1) MY178861A (2)
WO (1) WO2013118868A1 (2)

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JP2019113383A (ja) * 2017-12-22 2019-07-11 国立大学法人九州工業大学 金属複合体の材料混合比推定方法
WO2019142639A1 (ja) * 2018-01-16 2019-07-25 関西ペイント株式会社 複層塗膜形成方法
JP2019184346A (ja) * 2018-04-05 2019-10-24 Ｄｉｃグラフィックス株式会社 調色支援システム、調色支援方法及びプログラム
JP2020051923A (ja) * 2018-09-27 2020-04-02 国立大学法人九州大学 塗色評価用の等色範囲設定方法及び等色範囲設定装置
WO2020262615A1 (ja) * 2019-06-28 2020-12-30 関西ペイント株式会社 光輝性顔料判定方法、光輝性顔料判定装置および光輝性顔料判定プログラム
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JP6139417B2 (ja) 2017-05-31
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