Pigment decision support device, pigment decision support method, program, colored paint blend creation method, and colored paint manufacturing method

Abstract

A technology is provided for estimating the likelihood of deterioration of a colored coating film. [Solution] A pigment decision support device comprising: a control unit that executes an index estimation process to estimate an index that indicates the possibility of a colored coating film deteriorating after the colored paint is applied to a substrate, based on pigment composition information that indicates the composition of the pigments used in the colored paint; and an output unit that outputs the index estimated by the index estimation process.

Description

[Technical field]

[0001] The present invention relates to a pigment decision support device, Pigment decision support method, The present invention relates to a program, a method for creating a colored paint formulation, and a method for producing a colored paint. [Background technology]

[0002] When developing paint colors, it is common to evaluate the actual paint film through outdoor exposure tests, but this requires long-term testing. Even if accelerated weathering tests are used instead, the test period takes several months, and if the test results are poor, reconsideration is required. Therefore, in order to develop paint colors quickly, it is important to estimate the deterioration of the paint film in advance. However, the estimation of deterioration often depends on the knowledge of experts in paint design, and it is difficult for engineers and designers with little experience in paint design to predict it. In particular, when designing paint colors for automobiles, the designed paint color is applied to various parts (for example, the body, bumpers, spoilers, doorknobs, etc.), but since the materials (steel plate, polypropylene, ABS, etc.) and heat resistance temperatures of the parts to be painted are different, the type of paint (particularly the base resin, hardener, additive resin, etc.) often differs for each part to be painted. Therefore, it is important to design paint colors with a pigment composition that will not cause any problems regardless of the type of paint. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-206603 A [Patent Document 2] JP 2005-337783 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a technique for estimating the possibility of deterioration of a colored coating film. [Means for solving the problem]

[0005] One aspect of the present invention is a pigment decision support device that includes a control unit that executes an index estimation process to estimate an index that indicates the possibility of a colored coating film deteriorating after the colored paint is applied to a substrate, based on pigment composition information that indicates the composition of the pigments used in the colored paint, and an output unit that outputs the index estimated by the index estimation process. Effect of the Invention

[0006] According to the present invention, a technique for estimating the possibility of deterioration of a colored coating film can be provided. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is an explanatory diagram illustrating an overview of a pigment determination supporting device according to an embodiment. [Diagram 2] FIG. 1 is a diagram showing an example of a first index for a certain pigment. [Diagram 3] FIG. 1 is a diagram showing an example of a first index for a certain pigment. [Figure 4] FIG. 1 is a diagram showing an example of a second index for a certain pigment. [Diagram 5] FIG. 1 is a diagram showing an example of a second index for a certain pigment. [Figure 6] FIG. 2 is a diagram illustrating an example of a hardware configuration of a pigment determination support device according to an embodiment. [Figure 7] 5 is a flowchart showing an example of a flow of a process executed by the pigment decision supporting device of the embodiment. [Figure 8] This is an example of the discoloration indicator ("Color") and peeling indicator ("Peeling") display. [Figure 9] This is an example of the discoloration indicator ("Color") and peeling indicator ("Peeling") display. [Figure 10] FIG. 1 is a diagram showing a paint blend preparation device and a paint manufacturing device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described in detail. In the present invention, "deterioration of the colored coating film (discoloration or peeling of the clear coating film)" can also be simply rephrased as "weather resistance." In addition, a coating film coated with a colored coating is called a "colored coating film," a coating film coated with a clear paint is called a "clear coating film," and a clear coating on a colored coating film is called a "multilayer coating film." (First embodiment) (Pigment Decision Support Device) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an explanatory diagram illustrating an overview of a pigment decision supporting device 10 according to an embodiment of the present invention. The pigment decision supporting device 10 estimates an index indicating the possibility of deterioration of a colored coating film. The pigment determination support device 10 includes a control unit 11 including a processor 91, such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit) or an NPU (Neural Network Processing Unit), and a memory 92, which are connected via a bus.

[0009] The control unit 11 executes, for example, an information acquisition process and an index estimation process.

[0010] (Information acquisition processing) The information acquisition process is a process for acquiring information used in the index estimation process. The information acquired by the information acquisition process includes pigment composition information. The pigment composition information indicates the composition of the pigment used in the colored paint. The pigments used in the colored paint include, for example, color pigments, lustrous materials, and extender pigments. The color pigments are pigments that contribute to the coloring of the coating film. The lustrous materials are pigments composed of components that impart a metallic or lustrous feel to the coating film by reflecting or interfering with light. The lustrous materials include, for example, aluminum flakes. Aluminum flakes are fine particles of aluminum. Typically, the higher the concentration of aluminum flakes, the higher the reflectance of the coating film. The extender pigments are pigments with weak coloring power that do not contribute much to coloring (for example, pigments composed of transparent or translucent particles).

[0011] The information acquired by the information acquisition process includes, for example, clear coating information. The clear coating information indicates the film thickness of the clear coating film formed by applying a clear paint on a colored coating film on which a colored paint has been applied, and the substances blended in the clear coating film. The colored paint is a paint that forms a colored coating film. The clear paint is a paint that is formed as the top layer and forms a transparent, glossy clear coating film.

[0012] In addition, the thickness of the above-mentioned clear coating film can be freely set to a thin or thick film based on the standard thickness of the paint. When the thickness of the clear coating film becomes thinner, from the standard thickness to a thin film, the colored coating film tends to deteriorate due to the influence of ultraviolet rays, for example. In addition to resins and pigments, clear coatings contain additives such as UVA (ultraviolet absorbing agents) and HALS (ultraviolet light stabilizers) to prevent deterioration due to ultraviolet rays, and the degree of deterioration of colored coatings varies depending on the amount of UVA and HALS added.

[0013] In general, the thicker the clear coat, the less likely the colored coat formed underneath will deteriorate. Also, the more UVA and HALS the clear coat contains, the less likely the colored coat formed underneath will deteriorate.

[0014] The information acquired by the information acquisition process includes, for example, information on the solvent type of the colored paint. The information on the solvent type of the colored paint is information on whether the solvent type of the colored paint is a water-based paint or a solvent-based paint.

[0015] Here, the term "water-based paint" is a term that is contrasted with solvent-based paint, and generally means a paint in which a binder component is dispersed and / or dissolved in water or a medium mainly composed of water (aqueous medium). Specifically, the solvent used in the paint is usually a paint containing more than 50% by mass of water, preferably 60% by mass or more, and more preferably 70% by mass or more.

[0016] Furthermore, a "solvent-based paint" typically contains 50% by mass or more, preferably 70% by mass or more, and more preferably 90% by mass or more of an organic solvent as the solvent used in the paint. As the organic solvent, those known per se can be suitably used, and examples thereof include aromatic solvents, ester solvents, ketone solvents, and alcohol solvents, and these can be used alone or in combination of two or more.

[0017] Generally, water-based paints are environmentally friendly because they do not use organic solvents, but because they use binder components that disperse and / or dissolve in water-based solvents, they are more susceptible to deterioration than solvent-based paints in terms of weather resistance, which is mainly caused by water, light, and oxygen. Therefore, it is preferable to distinguish between them based on the type of solvent as described above.

[0018] The colored paint for which the pigment determination support device 10 performs estimation processing is preferably a colored paint in a multi-layer coating film, in which the colored paint is applied onto the substrate to form a colored coating film, the colored coating film is heated and dried or baked and hardened as necessary, and then a clear paint is applied onto the colored coating film to form a clear coating film, and the multi-layer coating film is heated and dried or baked and hardened as necessary. The substrate to be coated is not particularly limited, and may be, for example, metal, plastic, or any of these that has been subjected to a chemical conversion treatment or coating with a paint.

[0019] (Index Estimation Processing) The index estimation process is a process for estimating an index (hereinafter referred to as a deterioration index) indicating the possibility of deterioration of the colored coating film after the colored paint is applied to the substrate. The deterioration index estimated by the index estimation process includes, for example, a discoloration index. The discoloration index indicates the possibility of discoloration of the colored coating film after the colored paint is applied to the substrate.

[0020] (Discoloration indicator) The index estimation process is a process of estimating a discoloration index using a first index based on, for example, pigment composition information. The first index is, for example, an index determined in advance for each pigment for each brightness of the colored paint. The first index is, for example, an index determined in advance for each pigment for each "value indicating brightness" of the colored paint. Here, the "value indicating brightness" is, for example, the ratio of the concentration of a color pigment other than white to the concentration of the color pigment and aluminum flakes contained in the colored paint. Since the higher the concentration of aluminum flakes, the higher the reflectance of the paint color, the smaller the "value indicating brightness" is the brighter the paint color appears, and the darker it appears, the higher the "value indicating brightness" is. An example of a white color pigment is titanium dioxide. Since the higher the concentration of titanium dioxide, the higher the reflectance of the paint color, the smaller the "value indicating brightness" is the brighter the paint color appears, and the darker it appears, the higher the "value indicating brightness" is.

[0021] The first index may be an index determined for each brightness classification of the colored paint. The brightness classification is a classification determined by the "value indicating brightness". For example, when the "value indicating brightness" of a certain colored paint is 0.1 or less, the brightness of the colored paint is classified into the first brightness division, when it is greater than 0.1 and less than 0.5, the brightness of the colored paint is classified into the second brightness division, when it is greater than 0.5 and less than 0.9, the brightness of the colored paint is classified into the third brightness division, and when it is greater than 0.9, the brightness of the colored paint is classified into the fourth brightness division. FIG. 2 is a diagram showing an example of the first index for a certain color pigment.

[0022] FIG. 3 is a diagram showing an example of a first index for a certain color pigment. The first index shown in FIG. 3(a) has a discrete value for the "value indicating the lightness" like the first index shown in FIG. 2. The first index may have a continuous value for the "value indicating the lightness" as shown in FIG. 3(b). The first index shown in FIG. 3(b) differs from the first index shown in FIG. 3(a) in that the first index has a value between 0.85 and 0.9 when the "value indicating the lightness" is in the range of 0.1 to 0.5, and the first index has a value between 0.9 and 1.0 when the "value indicating the lightness" is in the range of 0.5 to 0.9.

[0023] The index estimation process is, for example, a process of estimating the average of the first index corresponding to the blending amount of each pigment indicated by the pigment composition information as the discoloration index. In the index estimation process, the discoloration index is calculated, for example, as the sum of the products of the blending ratio, which is the ratio of the blending amount of each color pigment indicated by the pigment composition information to the blending amount of all color pigments, and the first index. The blending ratio may be the ratio of the blending amount of each color pigment to the blending amount of all pigments including the luster pigment and the extender pigment. The discoloration index I1 is calculated, for example, by the formula (1).

number

[0024] In formula (1), i represents the type of pigment, i indicates the mixing ratio of color pigment i, and b i denotes the first index of pigment i.

[0025] The first index or the discoloration index may be corrected by the clear coating film, the type of solvent in the colored paint, the hue difference of each colored pigment, the concentration of each pigment, or the coloring strength of each pigment.

[0026] The thicker the clear coating film, the less likely the colored coating film formed underneath the clear coating film will deteriorate. Therefore, when the clear coating film is relatively thick, the first index or discoloration index may be corrected to a larger value by multiplying the first index or discoloration index by a value greater than 1 or adding a positive value to the first index or discoloration index. Also, when the clear coating film is relatively thin, the first index or discoloration index may be corrected to a smaller value by multiplying the first index or discoloration index by a value less than 1 or subtracting a positive value from the first index or discoloration index.

[0027] The more the blending amount of UVA or HALS in the clear coating film, the less likely the colored coating film formed underneath the clear coating film will deteriorate. Therefore, when the blending amount of UVA or HALS in the clear coating film is equal to or greater than a predetermined value, the first index or discoloration index may be corrected to a larger value by multiplying the first index or discoloration index by a value greater than 1 or adding a positive value to the first index or discoloration index.

[0028] When the solvent type of the colored paint is water-based paint, the colored coating film is more likely to deteriorate than when the solvent type of the colored paint is solvent-based paint. Therefore, when the solvent type of the colored paint is water-based paint, the first index or discoloration index may be corrected to a smaller value by multiplying the first index or discoloration index by a value smaller than 1 or subtracting a positive value from the first index or discoloration index. Also, when the solvent type of the colored paint is solvent-based paint, the first index or discoloration index may be corrected to a larger value by multiplying the first index or discoloration index by a value larger than 1 or adding a positive value to the first index or discoloration index.

[0029] The "hue difference" is calculated based on the difference in hue between each color pigment contained in the colored paint, for example. The hue of each color pigment is calculated by the hue angle h* of the paint made by mixing the pigment with a white pigment or aluminum flakes in any ratio. Here, h* is the hue angle h* of the CIE LCh color system. When the colored paint contains pigments with different hues, that is, when the colored paint contains color pigments with a large hue difference, the colored coating film is easily deteriorated. Therefore, when the colored paint contains color pigments with a large hue difference (for example, when the colored paint contains color pigments with hues with a hue angle h* difference of more than 45), the first index or discoloration index may be corrected to a small value by multiplying the first index or discoloration index by a value smaller than 1 or subtracting a positive value.

[0030] When the concentration of each pigment contained in the colored paint falls within a range predetermined for each pigment, deterioration of the colored coating film may be accelerated or inhibited. Therefore, when the concentration of each pigment contained in the colored paint falls within a range predetermined for each pigment, the first index or discoloration index may be corrected by multiplying the first index or discoloration index by a coefficient or adding positive and negative values ​​to the first index or discoloration index.

[0031] The coloring strength of each color pigment contained in the colored paint affects the deterioration of the colored paint film. The coloring strength of each color pigment is calculated by the difference between the lightness of a paint made by mixing each color pigment and a white pigment in a fixed ratio, for example, and the lightness of a paint made with only white pigment. Here, the lightness is the lightness L* of the CIE Lab color system. Since the stronger the coloring strength of a color pigment, the more it contributes to the deterioration of the paint film, the mixing ratio a in formula (1) for calculating the discoloration index is calculated. i For example, by equation (2), x i may be corrected to

number

[0032] In formula (2), x i is the corrected mixture ratio, y i indicates color strength, and i indicates the type of pigment.

[0033] The finally calculated discoloration index may be an index corrected by a plurality of conditions. For example, the calculated discoloration index may be a plurality of discoloration indexes when the film thickness of the clear coating film is different. For example, the calculated discoloration index may be two discoloration indexes when the solvent type of the colored paint is a water-based paint and when the solvent type is a solvent-based paint.

[0034] (Peeling index) The estimated deterioration indicators include, for example, a peeling indicator, which indicates the possibility that the clear coating will peel off due to deterioration of the colored coating after the colored coating and the clear coating are applied to the substrate. The index estimation process is a process of estimating the peeling index using a second index based on, for example, pigment composition information. The second index is, for example, an index determined in advance for each pigment for each pigment concentration. The second index is, for example, an index determined in advance for each pigment for each "value indicating pigment concentration" of the colored paint.

[0035] Here, the "value indicating the pigment concentration" is, for example, the sum of the concentrations of the color pigments calculated for each color pigment with respect to a coefficient determined for each color pigment. The "value indicating the pigment concentration" is expressed, for example, by the formula (2).

number

[0036] In formula (3), J represents a "value indicating the pigment concentration", i represents the type of color pigment, and c i denotes the concentration of color pigment i, and d i denotes the coefficient assigned to color pigment i.

[0037] Since the higher the concentration of the color pigment, the more likely the coating film will peel off, the higher the pigment concentration, and the lower the pigment concentration, the smaller the value. This value is not simply the pigment concentration, but is a value that is corrected by a coefficient determined for each color pigment.

[0038] The second index may be an index determined for each concentration classification of the color pigment of the colored paint. The concentration classification of the color pigment is a classification determined by the "value indicating the pigment concentration." For example, in a certain colored paint, if the "value indicating the pigment concentration" is smaller than 0.2, the pigment concentration of the colored paint is classified into the first concentration classification, if it is greater than 0.2 and equal to or less than 0.4, the pigment concentration of the colored paint is classified into the second concentration classification, if it is greater than 0.4 and equal to or less than 0.6, the pigment concentration of the colored paint is classified into the third concentration classification, if it is greater than 0.6 and equal to or less than 0.8, the pigment concentration of the colored paint is classified into the fourth concentration classification, if it is greater than 0.8 and equal to or less than 1, the pigment concentration of the colored paint is classified into the fifth concentration classification, and if it is greater than 1, the pigment concentration of the colored paint is classified into the sixth concentration classification. FIG. 4 is a diagram showing an example of the second index for a certain color pigment.

[0039] FIG. 5 is a diagram showing an example of the second index for a certain color pigment. The second index shown in FIG. 5(a) has a discrete value with respect to the "value indicating the pigment concentration" like the second index shown in FIG. 4. The second index may have a continuous value with respect to the "value indicating the pigment concentration" as shown in FIG. 5(b). The second index shown in FIG. 5(b) differs from the second index shown in FIG. 5(a) in that the second index has a value between 1.1 and 1.0 when the "value indicating the pigment concentration" is in the range of 0.2 to 0.4, and the first index has a value between 1.0 and 0.9 when the "value indicating the pigment concentration" is 0.8 or more.

[0040] The index estimation process is, for example, a process of estimating the average of the second index according to the blending amount of each color pigment indicated by the pigment composition information as the peeling index. In the index estimation process, the peeling index is calculated, for example, as the sum of the products of the blending ratio, which is the ratio of the blending amount of each color pigment indicated by the pigment composition information to the blending amount of all color pigments, and the second index. The peeling index I2 is calculated, for example, by the formula (4).

number

[0041] In formula (4), i represents the type of pigment, and e i indicates the blending ratio of pigment i, and f i denotes the second index of pigment i.

[0042] The second index or peeling index may be corrected based on the type of solvent in the clear coating or colored coating, or the concentration of each pigment.

[0043] The thicker the clear coating film, the less likely the colored coating film formed underneath the clear coating film will deteriorate. Therefore, when the clear coating film is relatively thick, the second index or peeling index may be corrected to a larger value by multiplying the second index or peeling index by a value greater than 1 or adding a positive value to the second index or peeling index. Also, when the clear coating film is relatively thin, the second index or peeling index may be corrected to a smaller value by multiplying the second index or peeling index by a value less than 1 or subtracting a positive value from the second index or peeling index.

[0044] The more the blending amount of UVA or HALS in the clear coating film, the less likely the colored coating film formed underneath the clear coating film will deteriorate. Therefore, when the blending amount of UVA or HALS in the clear coating film is equal to or greater than a predetermined value, the second index or peeling index may be multiplied by a value greater than 1 or a positive value may be added to correct the second index or peeling index to a larger value.

[0045] When the solvent type of the colored paint is water-based paint, the colored coating film is more likely to deteriorate than when the solvent type of the colored paint is solvent-based paint. Therefore, when the solvent type of the colored paint is water-based paint, the second index or peeling index may be multiplied by a value smaller than 1 or a positive value may be subtracted from the second index or peeling index to correct it to a smaller value. Also, when the solvent type of the colored paint is solvent-based paint, the second index or peeling index may be multiplied by a value larger than 1 or a positive value may be added to the second index or peeling index to correct it to a larger value.

[0046] When the concentration of each pigment contained in the colored paint falls within a range predetermined for each pigment, deterioration of the colored coating film may be promoted or suppressed. Therefore, when the concentration of each pigment contained in the colored paint falls within a range predetermined for each pigment, the second index or peeling index may be corrected by multiplying the second index or peeling index by a coefficient or adding positive and negative values ​​to the second index or peeling index.

[0047] The finally calculated discoloration index may be an index corrected by a plurality of conditions. For example, the calculated discoloration index may be a plurality of discoloration indexes when the film thickness of the clear coating film is different. For example, the calculated discoloration index may be two discoloration indexes when the solvent type of the colored paint is a water-based paint and when the solvent type is a solvent-based paint.

[0048] It is preferable that the above-described index estimation process does not use techniques such as machine learning.

[0049] <An example of the hardware configuration of the pigment decision support device 10> 6 is a diagram showing an example of the hardware configuration of a pigment decision supporting device 10 in an embodiment. The pigment decision supporting device 10 includes a control unit 11 including a processor 91 and a memory 92 connected by a bus, and executes a program. The pigment decision supporting device 10 functions as a device including the control unit 11, an interface unit 12, and a storage unit 13 by executing the program.

[0050] More specifically, the processor 91 reads out a program stored in the storage unit 13, and stores the read out program in the memory 92. The processor 91 executes the program stored in the memory 92, whereby the pigment determination support device 10 functions as a device including a control unit 11, an interface unit 12, and a storage unit 13.

[0051] The control unit 11 controls the operation of each functional unit of the pigment determination support device 10. The control unit 11 acquires information stored in the memory unit 13, for example. The process of acquiring information stored in the memory unit 13 is specifically reading. The control unit 11 may output various information to the memory unit 13, for example. The memory unit 13 records the information output to the memory unit 13. The control unit 11 acquires information acquired by the interface unit 12, for example. The control unit 11 controls the interface unit 12, for example, to transmit the information to be transmitted to the destination.

[0052] The control unit 11 executes, for example, an information acquisition process and an index estimation process.

[0053] The interface unit 12 includes a communication interface for connecting the pigment determination support device 10 to an external device. The interface unit 12 communicates with the external device via wired or wireless communication. The external device is, for example, a device that is a source of network information. The interface unit 12 acquires network information by communicating with the device that is the source of network information.

[0054] The interface unit 12 may be configured to include input devices such as a mouse, a keyboard, a touch panel, etc. The interface unit 12 may be configured as an interface that connects these input devices to the pigment decision support device 10. In this manner, the input device of the interface unit 12 accepts input of various types of information to the pigment decision support device 10 via a wired or wireless connection. Note that various types of information such as network information do not necessarily need to be input to the communication interface of the interface unit 12, and may be input to the input device of the interface unit 12.

[0055] The interface unit 12 outputs, for example, various types of information. The interface unit 12 includes a display device, such as a CRT (Cathode Ray Tube) display, a liquid crystal display, or an organic EL (Electro-Luminescence) display, and a speaker. The interface unit 12 may be configured as an interface that connects these display devices or speakers to the pigment determination support device 10. Therefore, the display device and speaker included in the interface unit 12 output, for example, information input to an input device of the interface unit 12 as an image or sound.

[0056] The control unit 11 may, for example, control the operation of a display device and / or a speaker constituting the interface unit 12 to output a deterioration indicator (discoloration indicator, peeling indicator).

[0057] The storage unit 13 is configured using a computer-readable storage medium device (non-transitory computer-readable recording medium) such as a magnetic hard disk device or a semiconductor storage device. The storage unit 13 stores various information related to the pigment determination support device 10. The storage unit 13 stores various information generated by the operation of the control unit 11, such as estimated color candidates. The storage unit 13 may exist on a cloud, for example.

[0058] 7 is a flowchart showing an example of the flow of processing executed by the pigment determination support device 10 of the embodiment. The control unit 11 executes an information acquisition process to acquire information used to estimate a deterioration index (step S11). The control unit 11 executes an index estimation process to estimate a deterioration index (step S12). The control unit 11 causes the deterioration index to be output to a predetermined output destination (step S13). The predetermined output destination is, for example, a display device and / or a speaker constituting the interface unit 12. The output deterioration index can be checked by a paint color designer or the like, and by comparing the deterioration indexes for different pigments, the estimated deterioration index can be used to help determine the pigment.

[0059] Figure 8 is an example of the display of the discoloration index ("Color") and peeling index ("Peeling"). There are two types of indexes depending on the thickness of the clear coating (standard film STD or thin film THIN). Depending on the values ​​of the discoloration index and peeling index, the result is judged and displayed as OK (no problems with the first judgment), CHECK (check required), WARN (high risk), or NG (not suitable for use). The person designing the paint color can check each index and decide on the paint color based on what they find.

[0060] Figure 9 shows examples of the discoloration index ("Color") and peeling index ("Peeling"). There are two types of indexes depending on the type of solvent used in the colored paint (solvent-based paint or water-based paint). Depending on the values ​​of the discoloration index and peeling index, the result is judged and displayed as OK (no problems in the first judgment), CHECK (check required), WARN (high risk), or NG (not suitable for use). The person in charge of the paint color design (color design) can check each indicator and decide on the paint color (hue) based on what he or she has checked.

[0061] (Paint formulation equipment / Paint manufacturing equipment) FIG. 10 is a diagram showing a paint formulation creation device 20 and a paint manufacturing device 30. The paint formulation creation device 20 receives pigment composition information corresponding to the deterioration index estimated from the pigment decision support device 10. The paint formulation creation device 20 creates information indicating the formulation of a colored paint based on the deterioration index. For example, the paint formulation creation device 20 creates information indicating the formulation of a colored paint including the pigment composition based on the pigment composition information of a pigment with the smallest deterioration index. The paint formulation creation device 20 outputs the created information indicating the paint formulation to the paint manufacturing device 30.

[0062] Information indicating the paint formulation is input to the paint manufacturing apparatus 30 from the paint formulation creation apparatus 20. The paint manufacturing apparatus 30 manufactures paint with the formulation indicated by the information indicating the paint formulation. The paint manufacturing apparatus 30 is provided with predetermined paints, and manufactures paint by blending the provided paints to obtain the paint formulation indicated by the input information.

[0063] Other Embodiments Although one embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to the above, and various design changes, etc. are possible within the scope that does not deviate from the gist of the present invention.

[0064] A part or the whole of the pigment determination support device 10 in the above-mentioned embodiment may be realized by a computer. In that case, a program for realizing the function may be recorded in a computer-readable recording medium, and the program recorded in the recording medium may be read into a computer system and executed to realize the function. The term "computer system" here includes an OS and hardware peripherals. The term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and recording devices such as hard disks built into a computer system. The term "computer-readable recording medium" may also include a medium that dynamically holds a program for a short period of time, such as a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line, and a medium that holds a program for a certain period of time, such as a volatile memory inside a computer system that is a server or client in such a case. The above-mentioned program may be a program for realizing a part of the above-mentioned function, or may be a program that can realize the above-mentioned function in combination with a program already recorded in the computer system, or may be a program that is realized using a programmable logic device such as an FPGA (Field Programmable Gate Array). [Explanation of symbols]

[0065] 10: Pigment determination support device, 11: control unit, 12: interface unit, 13: storage unit

Claims

1. a control unit that executes an index estimation process to estimate an index indicating a possibility of deterioration of a colored coating film after the colored coating is applied to a substrate, based on pigment composition information indicating a composition of a pigment used in the colored coating; an output unit that outputs the index estimated by the index estimation process; Equipped with In the index estimation process, the index is estimated based on clear film thickness information indicating a film thickness of a clear coating film formed by applying a clear paint on the colored coating film applied with the colored paint. Pigment decision aid.

2. In the index estimation process, the index is estimated using clear paint composition information indicating a composition of the clear paint.

2. The pigment decision support system of claim 1.

3. A control unit that executes an index estimation process to estimate an index indicating the possibility of a colored coating film deteriorating after the colored coating is applied to a substrate based on pigment composition information indicating the composition of the pigment used in the colored coating; an output unit that outputs the index estimated by the index estimation process; Equipped with The index is a discoloration index that indicates the possibility of discoloration of a colored coating film after the colored coating material is applied to a substrate, In the index estimation process, the discoloration index is estimated based on the pigment composition information by using a first index, which is an index previously determined for each pigment for each lightness of the colored paint. Pigment decision aid.

4. In the index estimation process, an average of the first indexes corresponding to the blending amounts of the pigments indicated by the pigment composition information is estimated as the discoloration index.

4. The pigment decision support system of claim 3.

5. The index is a peeling index indicating the possibility that the clear coating film will peel off after the colored paint and the clear paint are applied to a substrate, 2. The pigment decision support system of claim 1.

6. In the index estimation process, the peeling index is estimated based on the pigment composition information by using a second index, which is an index previously determined for each pigment for each pigment concentration.

6. The pigment decision support system of claim 5.

7. In the index estimation process, an average of the second indexes corresponding to the blending amounts of the pigments indicated by the pigment composition information is estimated as the peeling index.

7. The pigment decision support system of claim 6.

8. In the index estimation process, two indexes indicating the possibility of deterioration are calculated for a case where the solvent type of the colored paint is a water-based paint and a case where the solvent type of the colored paint is a solvent-based paint.

2. The pigment decision support system of claim 1.

9. a control step of executing an index estimation process for estimating an index indicating a possibility that a colored coating film will deteriorate due to the influence of the pigment after the colored coating is applied to a substrate, based on pigment composition information indicating a composition of the pigment used in the colored coating; an output step of outputting the index estimated by the index estimation process; having In the index estimation process, the index is estimated based on clear film thickness information indicating a film thickness of a clear coating film formed by applying a clear paint on the colored coating film applied with the colored paint. Pigment decision aid method.

10. A program for causing a computer to function as a pigment decision support device described in any one of claims 1 to 8.

11. A creating step of creating a colored paint formulation including a pigment composition determined by the pigment determination support device according to any one of claims 1 to 8; A method for preparing a colored paint formulation comprising the steps of:

12. A manufacturing step of manufacturing a colored paint having a formulation indicated by the information indicating the colored paint formulation obtained by the colored paint formulation preparation method described in claim 11; A method for producing a colored paint comprising the steps of:

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