WO2022050055A1 - Mask member for color measurement device, color measurement device, and color measurement method - Google Patents
Mask member for color measurement device, color measurement device, and color measurement method Download PDFInfo
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- WO2022050055A1 WO2022050055A1 PCT/JP2021/030277 JP2021030277W WO2022050055A1 WO 2022050055 A1 WO2022050055 A1 WO 2022050055A1 JP 2021030277 W JP2021030277 W JP 2021030277W WO 2022050055 A1 WO2022050055 A1 WO 2022050055A1
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- Prior art keywords
- color
- mask member
- color measurement
- measurement target
- resin
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- 238000005259 measurement Methods 0.000 title claims abstract description 69
- 238000000691 measurement method Methods 0.000 title abstract 3
- 239000011347 resin Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 10
- -1 polyethylene terephthalate Polymers 0.000 claims description 9
- 238000002834 transmittance Methods 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims description 4
- 239000004431 polycarbonate resin Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920005990 polystyrene resin Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920001893 acrylonitrile styrene Polymers 0.000 claims description 3
- BZDKYAZTCWRUDZ-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;prop-2-enenitrile;styrene Chemical compound C=CC=C.C=CC#N.COC(=O)C(C)=C.C=CC1=CC=CC=C1 BZDKYAZTCWRUDZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920012128 methyl methacrylate acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 229920006122 polyamide resin Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 239000003086 colorant Substances 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000001052 yellow pigment Substances 0.000 description 4
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000001056 green pigment Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000001058 brown pigment Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001057 purple pigment Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
Definitions
- Such a colorimeter includes, for example, a light source that emits irradiation light that irradiates the surface of a color measurement target such as a product, and a receiver such as a sensor that receives reflected light emitted from the surface of the color measurement target.
- the mask member for the color measuring device shown below is provided.
- FIG. 1 is a front view schematically showing an embodiment of the mask member of the present invention.
- FIG. 2 is a perspective view schematically showing an embodiment of the mask member of the present invention.
- the mask member 10 of the present embodiment is a disk-shaped member in which a window portion 5 penetrating in the thickness direction thereof is formed substantially in the center.
- the window portion 5 is formed so as to optically penetrate the mask member 10 in the thickness direction.
- Optically penetrating means not only physically penetrating but also light, especially visible light, as long as it can pass through.
- the window portion may be provided with a transparent material such as glass, but it is preferable that the window portion physically penetrates is formed.
- the overall shape of the mask member is not limited to the disk shape shown in FIGS. 1 and 2, and may be any shape. However, in consideration of practical handleability and the like, the disk shape shown in FIGS. 1 and 2 is preferable.
- the shape of the window portion is not limited to the circular shape shown in FIGS. 1 and 2, and may be any shape. However, in substance, it is preferably one of a circle, an ellipse, and an oval.
- the general mask member used in conventional colorimeters and the like was made of an opaque material such as a metal plate, a metal coated plate, or a resin plate.
- the mask member 10 for the color measuring device of the present embodiment is a transparent or translucent member.
- the present inventor has a relatively large size by using a color measuring device in which such a transparent or opaque mask member 10 is arranged between a color measuring object and a light source and at a position in contact with the color measuring object. It was found that even if the color measurement target is small, the color difference from the visual tint is small and the color can be measured more accurately.
- the visible light transmittance of the mask member 10 is preferably 80% or more, more preferably 85% or more, particularly preferably 90% or more, and most preferably 95 to 100%. By setting the visible light transmittance to 80% or more, even if the size of the color measurement target is small, the color difference from the visual tint can be further reduced, and more accurate color measurement becomes possible. ..
- the "visible light transmittance" in the present specification is a visible light transmittance in the wavelength region of 380 to 780 nm measured in accordance with JIS R 3106: 2019.
- the mask member 10 is usually made of a transparent or translucent material (hereinafter, collectively referred to as "transparent material").
- transparent material examples include acrylic resin, polycarbonate resin, polyethylene terephthalate resin, hard polyvinyl chloride resin, polystyrene resin, polypropylene resin, polyethylene resin, methylmethacrylate acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polyamide resin, and fluororesin.
- transparent material include acrylic resin, polycarbonate resin, polyethylene terephthalate resin, hard polyvinyl chloride resin, polystyrene resin, polypropylene resin, polyethylene resin, methylmethacrylate acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polyamide resin, and fluororesin.
- epoxy resin quartz, and glass.
- resin materials such as acrylic resin, polycarbonate resin, polyethylene terephthalate resin,
- the maximum opening diameter D 1 (FIG. 1) of the window portion 5 of the mask member 10 is usually made smaller than the measurable size of the color measurement target (sample). That is, the maximum opening diameter D1 of the window portion 5 may be appropriately set according to the size of the color measurement target and the like. Specifically, the maximum opening diameter D 1 of the window portion 5 of the mask member 10 is preferably 20 mm or less, more preferably 15 mm or less, and particularly preferably 13 mm or less. The lower limit of the maximum opening diameter D1 of the window portion 5 is not particularly limited, and may be substantially larger than the measured diameter of the spectrophotometer (for example, 4 mm or more).
- the mask member according to the embodiment of the present invention may be composed of only a disk-shaped member as shown in FIGS. 1 and 2, and is mounted for mounting on the main body of the color measuring device described later. It may further include other configurations such as a unit and a detection unit for recognizing that the mask member is attached to the main body of the color measuring device.
- a window portion optically penetrating in the thickness direction thereof is formed between the color measuring object and the light source, and is arranged at a position in contact with the color measuring object.
- It is a color measuring device including a mask member to be used.
- the mask member is the mask member according to the embodiment of the present invention described above.
- one embodiment of the color measuring method of the present invention includes a step of measuring a color to be measured by using this color measuring device.
- FIG. 3 is a schematic diagram showing an embodiment of the color measuring device of the present invention.
- the color measuring device 50 of the present embodiment measures colors through an integrating sphere 8 in which an incident window 2, an irradiation window 4, and a light receiving window 6 are formed, and an incident window 2 and an irradiation window 4.
- a light source 14 that generates irradiation light to irradiate the surface of the target 12, a light receiving unit 16 that receives the reflected light reflected from the surface of the color measurement target 12 through the light receiving window 6, and a color measurement target 12 and the light source 14.
- the mask member 20 is provided so that the window portion 15 is located at a position corresponding to the irradiation window 4 of the integrating sphere 8.
- the inner wall surface of the integrating sphere 8 is coated with a white diffuse-reflecting paint such as magnesium oxide (MgO) or barium sulfate (BaSO 4 ).
- MgO magnesium oxide
- BaSO 4 barium sulfate
- the light emitted from the light source 14 and incident on the integrating sphere 8 from the incident window 2 is diffusely reflected on the inner wall surface of the integrating sphere 8, and a part (irradiation light) thereof presses the irradiation window 4 and the window portion 15 of the mask member 20.
- the surface of the color measurement target 12 is irradiated through. Then, the light (reflected light) reflected on the surface of the color measurement target 12 is received by the light receiving unit 16 through the light receiving window 6.
- the light source 14 can generate light in the visible light region (wavelength region 380 to 780 nm).
- the light source 14 for example, a xenon lamp or the like can be used.
- a spectroscope may be provided between the light source 14 and the incident window 2.
- the light receiving unit 16 includes, for example, a spectroscopic lens, a spectroscope, and an array sensor in which a plurality of light receiving elements are arranged.
- the reflected light received through the light receiving window 6 is separated by a spectroscopic lens and introduced into the spectroscope, and the value of the emitted light amount for each wavelength component of the array sensor is output to the arithmetic control unit 18. Then, the information processed by the arithmetic control unit 18 can be output to the outside through the input / output interface 35.
- the color measuring device 50 of the present embodiment includes the above-mentioned transparent or translucent mask member 20 in which a window portion 15 penetrating in the thickness direction thereof is formed. Therefore, if the color measuring device 50 of the present embodiment is used, even if the color measuring target 12 has a relatively small size, the color difference from the visual tint is small, and the color can be measured more accurately. ..
- the color measuring device of the present invention is irradiated from a single direction in addition to the so-called diffused lighting type color measuring device 50 that measures the surface of the color measuring target 12 using diffused illumination light as shown in FIG. It may be a so-called unidirectional illumination type color measuring device that measures color using light.
- FIG. 4A and 4B are schematic views illustrating a usage mode of the color measuring device of the present invention.
- the color measurement target 22 is arranged on the front surface of the window portion 25 of the mask member 30 provided in the color measurement device 60 (FIG. 4A). ). Then, the holder 32 abuts and holds the color measurement target 22 against the mask member 30 (FIG. 4B). In this state, the color measuring device 60 is operated, and the surface of the color measuring target 22 is irradiated with the irradiation light through the window portion 25. Next, the surface of the color measurement target 22 can be measured by receiving and analyzing the generated reflected light in the color measuring device 60.
- the color measuring device 60 includes the above-mentioned transparent or translucent mask member 30 in which the window portion 25 penetrating in the thickness direction thereof is formed, the color measuring device 60 can be used. Even for the color measurement target 22 having a relatively small size, the color difference from the visual tint is small, and the color can be measured more accurately. Further, the mask members 30 having different maximum opening diameters of the window portion 25 can be appropriately selected and attached according to the size of the color measurement target 22 and the like, and the color can be measured. Therefore, according to the color measuring device and the color measuring method of the present embodiment, it is possible to flexibly and accurately measure the color according to the size and shape of the surface of the color measuring target or the color measuring target itself.
- the color measuring device is not limited to the horizontal stationary type color measuring device as shown in FIGS. 4A and 4B, and may be any device provided with the above-mentioned mask member.
- it may be a stationary type color measuring device in which a color measuring object is placed on the upper surface thereof to measure a color.
- it may be a portable (handy type) color measuring device.
- Test piece 1 100 parts of soft transparent polyvinyl chloride (PVC), 0.222 parts of white pigment 1 (trade name "Discol EP-4050", manufactured by Dainichiseika Kogyo Co., Ltd.), 1 part of black pigment (trade name "Discol P-4710") , Dainichiseika Kogyo Co., Ltd.) 0.00046 parts, green pigment 1 (trade name "Discol EP-4514", manufactured by Dainichiseika Kogyo Co., Ltd.) 0.0014 parts, and yellow pigment 1 (trade name "Discol”) EP-4440 ”, manufactured by Dainichiseika Kogyo Co., Ltd.) 0.0218 parts were added and mixed, and then press-molded to obtain a press sheet having a thickness of about 2 mm. The obtained press sheet was cut to an appropriate size to obtain a translucent test piece 1 colored in yellowish green.
- PVC soft transparent polyvinyl chloride
- white pigment 1 trade name "Discol EP-4050" manufactured by Dainichis
- Green pigment 1 product name “ "Discor EP-4514”, manufactured by Dainichiseika Kogyo Co., Ltd.-Yellow pigment 1: product name "Discor EP-4440", manufactured by Dainichiseika Kogyo Co., Ltd.-Red pigment 1: product name "Discor P-4120", large Made by Nisseika Kogyo Co., Ltd.
- Yellow pigment 2 Product name “Discor P-4443”, manufactured by Dainichiseika Kogyo Co., Ltd.
- Brown pigment 1 Product name “Discol P-4820”, manufactured by Dainichiseika Kogyo Co., Ltd.
- a color measuring device provided with a mask member according to an embodiment of the present invention, even a relatively small color measuring object has a small color difference from the visual tint and can measure colors more accurately. Can be done.
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
Provided is: a mask member for a color measurement device, the mask member having a small color difference from a visually perceived color tint, the color measurement device being able to measure colors more accurately even if the color measurement target is made of a relatively small, thick, and translucent material; a color measurement device provided with the mask member; and a color measurement method that uses the color measurement device. The mask member 10 for the color measurement device is between the color measurement target and a light source, a window portion 5 that physically penetrates in the thickness direction being formed therein, the mask member 10 being disposed at a position that abuts on the color measurement target, the measurement target being arranged at a position that closes the window portion 5 and the color of the measurement target being measured by the color measurement device. The window portion 5 is transparent or translucent, and the maximum opening diameter D1 of the window portion 5 is 20 mm or less and smaller than the dimension of the measurement target. Provided are: the color measurement device in which the mask member 10 is disposed between the color measurement target and the light source and at a position abutting on the color measurement target; and a color measurement method including a step for measuring the color of a measurement target using the color measurement device.
Description
本発明は、測色装置用のマスク部材、測色装置、及び測色方法に関する。
The present invention relates to a mask member for a color measuring device, a color measuring device, and a color measuring method.
各種の工業製品等については、一定の品質を担保すべく、製品表面の色彩が製品間でバラつきが生じないよう同一に保持される。このため、製造段階等で測色計を使用して製品表面の色彩を測定し、管理する必要がある。このような測色計は、例えば、製品等の測色対象の表面に照射する照射光を発する光源と、測色対象の表面から発した反射光を受光するセンサー等の受光器とを備えている。
For various industrial products, in order to ensure a certain level of quality, the color of the product surface is kept the same so that there is no variation between the products. Therefore, it is necessary to measure and manage the color of the product surface using a colorimeter at the manufacturing stage or the like. Such a colorimeter includes, for example, a light source that emits irradiation light that irradiates the surface of a color measurement target such as a product, and a receiver such as a sensor that receives reflected light emitted from the surface of the color measurement target. There is.
測色対象の表面や測色対象自体のサイズ及び形状は、必ずしも一様であるとは限らない。そして、測色対象に応じて異なる測色計を準備することは現実的であるとはいえない。このため、測色対象と本体部との間にノーズコーンやターゲットマスク等の着脱可能なマスク部材を設けた測色計が提案されている（特許文献１及び２参照）。このマスク部材には、測色対象のサイズに応じた、測色対象に比して小さく開口した窓部が形成されている。そして、測色対象を測色する際には、光源及び受光部を含む照明受光部を覆うように、かつ、測色対象に接触するように、測色計の本体部に装着される。
The size and shape of the surface of the color measurement target and the color measurement target itself are not always uniform. And it is not realistic to prepare different colorimeters according to the color measurement target. Therefore, there has been proposed a colorimeter in which a removable mask member such as a nose cone or a target mask is provided between a color measurement target and a main body portion (see Patent Documents 1 and 2). The mask member is formed with a window portion having an opening smaller than that of the color measurement target according to the size of the color measurement target. When measuring the color of the colorimetric object, the colorimeter is attached to the main body of the colorimeter so as to cover the illumination light receiving part including the light source and the light receiving part and to come into contact with the colorimetric object.
しかし、特許文献１及び２等で提案された測色計を使用して測色対象の表面を測色した場合であっても、目視感の色味と、測色される色味との差（いわゆる色差）が生ずることがあり、測色対象の実際の色彩を正確に評価することが困難な場合があった。なかでも、測色対象のサイズが小さく厚みがあり半透明な場合（例えば、サイズが２０ｍｍ以下で厚さが１ｍｍ以上の場合）には、目視感よりも明度が低く測定されてしまい、色差が顕著に大きくなりやすいといった問題が生じていた。
However, even when the surface of the color measurement target is measured using the colorimeters proposed in Patent Documents 1 and 2, the difference between the color tone of the visual sense and the color tone to be measured. (So-called color difference) may occur, and it may be difficult to accurately evaluate the actual color of the colorimetric object. In particular, when the size of the color measurement target is small, thick and translucent (for example, when the size is 20 mm or less and the thickness is 1 mm or more), the brightness is measured lower than the visual feeling, and the color difference is large. There was a problem that it tended to grow significantly.
本発明は、このような従来技術の有する問題点に鑑みてなされたものであり、その課題とするところは、比較的サイズが小さく、厚みがあって半透明な材質からなる測色対象であっても、目視感の色味との色差が小さく、より正確に測色しうる測色装置とすることが可能な測色装置用のマスク部材を提供することにある。また、本発明の課題とするところは、比較的サイズが小さく、厚みがあって半透明な材質からなる測色対象であっても、目視感の色味との色差が小さく、より正確に測色することができる測色装置、及びこの測色装置を用いる測色方法を提供することにある。
The present invention has been made in view of the problems of the prior art, and the subject thereof is a color measurement object made of a relatively small size, thick and translucent material. However, it is an object of the present invention to provide a mask member for a color measuring device, which has a small color difference from a visual tint and can be a color measuring device capable of measuring a color more accurately. Further, an object of the present invention is that even if the color measurement target is made of a relatively small size, thick and translucent material, the color difference from the visual tint is small and the measurement is more accurate. It is an object of the present invention to provide a color measuring device capable of coloring and a color measuring method using the color measuring device.
すなわち、本発明によれば、以下に示す測色装置用のマスク部材が提供される。
［１］その厚さ方向に物理的に貫通する窓部が形成された、測色対象と光源の間であり、かつ前記測色対象に当接する位置に配設され、前記窓部を塞ぐ位置に前記測定対象を配置して前記測定対象を測色する測色装置用のマスク部材であって、透明又は半透明であり、前記窓部の最大開口径が、２０ｍｍ以下であるとともに前記測定対象の寸法よりも小さいマスク部材。
［２］ＪＩＳ Ｋ ７３６１－１：１９９７に準拠して測定される波長領域４００～７００ｎｍの全光線透過率が、８０％以上である前記［１］に記載のマスク部材。
［３］アクリル樹脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、硬質ポリ塩化ビニル樹脂、ポリスチレン樹脂、ポリプロピレン樹脂、ポリエチレン樹脂、メチルメタクリレートアクリロニトリルブタジエンスチレン樹脂、アクリロニトリルスチレン樹脂、ポリアミド樹脂、フッ素樹脂、エポキシ樹脂、石英、又はガラスにより形成されている前記［１］又は［２］に記載のマスク部材。 That is, according to the present invention, the mask member for the color measuring device shown below is provided.
[1] A position between the color measurement target and the light source, in which a window portion physically penetrating in the thickness direction is formed, and at a position where the window portion is in contact with the color measurement target and closes the window portion. It is a mask member for a color measuring device for arranging the measuring object in the above and measuring the color of the measuring object, and is transparent or translucent, and the maximum opening diameter of the window portion is 20 mm or less and the measuring object is measured. Mask member smaller than the size of.
[2] The mask member according to the above [1], wherein the total light transmittance in the wavelength region of 400 to 700 nm measured in accordance with JIS K 7631-1: 1997 is 80% or more.
[3] Acrylic resin, polycarbonate resin, polyethylene terephthalate resin, hard polyvinyl chloride resin, polystyrene resin, polypropylene resin, polyethylene resin, methylmethacrylate acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polyamide resin, fluororesin, epoxy resin, quartz, Alternatively, the mask member according to the above [1] or [2], which is made of glass.
［１］その厚さ方向に物理的に貫通する窓部が形成された、測色対象と光源の間であり、かつ前記測色対象に当接する位置に配設され、前記窓部を塞ぐ位置に前記測定対象を配置して前記測定対象を測色する測色装置用のマスク部材であって、透明又は半透明であり、前記窓部の最大開口径が、２０ｍｍ以下であるとともに前記測定対象の寸法よりも小さいマスク部材。
［２］ＪＩＳ Ｋ ７３６１－１：１９９７に準拠して測定される波長領域４００～７００ｎｍの全光線透過率が、８０％以上である前記［１］に記載のマスク部材。
［３］アクリル樹脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、硬質ポリ塩化ビニル樹脂、ポリスチレン樹脂、ポリプロピレン樹脂、ポリエチレン樹脂、メチルメタクリレートアクリロニトリルブタジエンスチレン樹脂、アクリロニトリルスチレン樹脂、ポリアミド樹脂、フッ素樹脂、エポキシ樹脂、石英、又はガラスにより形成されている前記［１］又は［２］に記載のマスク部材。 That is, according to the present invention, the mask member for the color measuring device shown below is provided.
[1] A position between the color measurement target and the light source, in which a window portion physically penetrating in the thickness direction is formed, and at a position where the window portion is in contact with the color measurement target and closes the window portion. It is a mask member for a color measuring device for arranging the measuring object in the above and measuring the color of the measuring object, and is transparent or translucent, and the maximum opening diameter of the window portion is 20 mm or less and the measuring object is measured. Mask member smaller than the size of.
[2] The mask member according to the above [1], wherein the total light transmittance in the wavelength region of 400 to 700 nm measured in accordance with JIS K 7631-1: 1997 is 80% or more.
[3] Acrylic resin, polycarbonate resin, polyethylene terephthalate resin, hard polyvinyl chloride resin, polystyrene resin, polypropylene resin, polyethylene resin, methylmethacrylate acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polyamide resin, fluororesin, epoxy resin, quartz, Alternatively, the mask member according to the above [1] or [2], which is made of glass.
また、本発明によれば、以下に示す測色装置が提供される。
［４］その厚さ方向に物理的に貫通する窓部が形成された、測色対象と光源の間であり、かつ前記測色対象に当接する位置に配設されるマスク部材を備える、前記窓部を塞ぐ位置に前記測定対象を配置して前記測定対象を測色する測色装置であって、前記マスク部材が、前記［１］～［３］のいずれかに記載のマスク部材である測色装置。 Further, according to the present invention, the color measuring device shown below is provided.
[4] The mask member provided with a mask member formed between a color measurement target and a light source and at a position of contact with the color measurement target, having a window portion physically penetrating in the thickness direction thereof. A color measuring device that measures the color of the measurement target by arranging the measurement target at a position that closes the window portion, and the mask member is the mask member according to any one of [1] to [3]. Color measuring device.
［４］その厚さ方向に物理的に貫通する窓部が形成された、測色対象と光源の間であり、かつ前記測色対象に当接する位置に配設されるマスク部材を備える、前記窓部を塞ぐ位置に前記測定対象を配置して前記測定対象を測色する測色装置であって、前記マスク部材が、前記［１］～［３］のいずれかに記載のマスク部材である測色装置。 Further, according to the present invention, the color measuring device shown below is provided.
[4] The mask member provided with a mask member formed between a color measurement target and a light source and at a position of contact with the color measurement target, having a window portion physically penetrating in the thickness direction thereof. A color measuring device that measures the color of the measurement target by arranging the measurement target at a position that closes the window portion, and the mask member is the mask member according to any one of [1] to [3]. Color measuring device.
さらに、本発明によれば、以下に示す測色方法が提供される。
［５］前記［４］に記載の測色装置を使用して測色対象を測色する工程を有する測色方法。 Further, according to the present invention, the following color measuring method is provided.
[5] A color measuring method comprising a step of measuring a color to be measured using the color measuring device according to the above [4].
［５］前記［４］に記載の測色装置を使用して測色対象を測色する工程を有する測色方法。 Further, according to the present invention, the following color measuring method is provided.
[5] A color measuring method comprising a step of measuring a color to be measured using the color measuring device according to the above [4].
本発明によれば、比較的サイズが小さく、厚みがあって半透明な材質からなる測色対象であっても、目視感の色味との色差が小さく、より正確に測色しうる測色装置とすることが可能な測色装置用のマスク部材を提供することができる。また、本発明によれば、比較的サイズが小さく、厚みがあって半透明な材質からなる測色対象であっても、目視感の色味との色差が小さく、より正確に測色することができる測色装置、及びこの測色装置を用いる測色方法を提供することができる。
According to the present invention, even if the color measurement target is made of a relatively small size, thick and translucent material, the color difference from the visual tint is small, and the color measurement can be performed more accurately. It is possible to provide a mask member for a color measuring device that can be used as a device. Further, according to the present invention, even if the color measurement target is made of a relatively small size, thick and translucent material, the color difference from the visual tint is small, and the color is measured more accurately. It is possible to provide a color measuring device capable of providing a color measuring device and a color measuring method using the color measuring device.
＜マスク部材＞
以下、本発明の実施の形態について説明するが、本発明は以下の実施の形態に限定されるものではない。図１は、本発明のマスク部材の一実施形態を模式的に示す正面図である。また、図２は、本発明のマスク部材の一実施形態を模式的に示す斜視図である。図１及び２に示すように、本実施形態のマスク部材１０は、その厚さ方向に貫通する窓部５が略中央に形成された円板状の部材である。窓部５は、マスク部材１０の厚さ方向に光学的に貫通するように形成されている。「光学的に貫通」とは、物理的に貫通しているだけでなく、光、なかでも可視光線が透過しうる状態であればよいことを意味する。具体的には、ガラス等の透明材料が設けられた窓部であってもよいが、物理的に貫通した窓部が形成されていることが好ましい。 <Mask member>
Hereinafter, embodiments of the present invention will be described, but the present invention is not limited to the following embodiments. FIG. 1 is a front view schematically showing an embodiment of the mask member of the present invention. Further, FIG. 2 is a perspective view schematically showing an embodiment of the mask member of the present invention. As shown in FIGS. 1 and 2, themask member 10 of the present embodiment is a disk-shaped member in which a window portion 5 penetrating in the thickness direction thereof is formed substantially in the center. The window portion 5 is formed so as to optically penetrate the mask member 10 in the thickness direction. "Optically penetrating" means not only physically penetrating but also light, especially visible light, as long as it can pass through. Specifically, the window portion may be provided with a transparent material such as glass, but it is preferable that the window portion physically penetrates is formed.
以下、本発明の実施の形態について説明するが、本発明は以下の実施の形態に限定されるものではない。図１は、本発明のマスク部材の一実施形態を模式的に示す正面図である。また、図２は、本発明のマスク部材の一実施形態を模式的に示す斜視図である。図１及び２に示すように、本実施形態のマスク部材１０は、その厚さ方向に貫通する窓部５が略中央に形成された円板状の部材である。窓部５は、マスク部材１０の厚さ方向に光学的に貫通するように形成されている。「光学的に貫通」とは、物理的に貫通しているだけでなく、光、なかでも可視光線が透過しうる状態であればよいことを意味する。具体的には、ガラス等の透明材料が設けられた窓部であってもよいが、物理的に貫通した窓部が形成されていることが好ましい。 <Mask member>
Hereinafter, embodiments of the present invention will be described, but the present invention is not limited to the following embodiments. FIG. 1 is a front view schematically showing an embodiment of the mask member of the present invention. Further, FIG. 2 is a perspective view schematically showing an embodiment of the mask member of the present invention. As shown in FIGS. 1 and 2, the
マスク部材の全体形状は、図１及び２に示す円板状に限定されず、いかなる形状であってもよい。但し、実質的な取り扱い性等を考慮すると、図１及び２に示す円板状であることが好ましい。また、窓部の形状についても、図１及び２に示す円形に限定されず、いかなる形状であってもよい。但し、実質的には、円形、楕円形、及び長円形のいずれかであることが好ましい。
The overall shape of the mask member is not limited to the disk shape shown in FIGS. 1 and 2, and may be any shape. However, in consideration of practical handleability and the like, the disk shape shown in FIGS. 1 and 2 is preferable. Further, the shape of the window portion is not limited to the circular shape shown in FIGS. 1 and 2, and may be any shape. However, in substance, it is preferably one of a circle, an ellipse, and an oval.
従来の測色計等に用いられていた一般的なマスク部材は、金属板、金属塗装板、又は樹脂板等の不透明な材料で構成されていた。これに対し、本実施形態の測色装置用のマスク部材１０は、透明又は半透明な部材である。本発明者は、このような透明又は不透明なマスク部材１０を、測色対象と光源の間であり、かつ測色対象に当接する位置に配設した測色装置を用いることで、比較的サイズの小さい測色対象であっても、目視感の色味との色差が小さく、より正確に測色しうることを見出した。
The general mask member used in conventional colorimeters and the like was made of an opaque material such as a metal plate, a metal coated plate, or a resin plate. On the other hand, the mask member 10 for the color measuring device of the present embodiment is a transparent or translucent member. The present inventor has a relatively large size by using a color measuring device in which such a transparent or opaque mask member 10 is arranged between a color measuring object and a light source and at a position in contact with the color measuring object. It was found that even if the color measurement target is small, the color difference from the visual tint is small and the color can be measured more accurately.
マスク部材１０の可視光線透過率は、８０％以上であることが好ましく、８５％以上であることがさらに好ましく、９０％以上であることが特に好ましく、９５～１００％であることが最も好ましい。可視光線透過率を８０％以上とすることで、測色対象のサイズが小さくても、目視感の色味との色差をさらに小さくすることができ、より正確に測色することが可能となる。本明細書における「可視光線透過率」は、ＪＩＳ Ｒ ３１０６：２０１９に準拠して測定される波長領域３８０～７８０ｎｍの可視光線透過率である。
The visible light transmittance of the mask member 10 is preferably 80% or more, more preferably 85% or more, particularly preferably 90% or more, and most preferably 95 to 100%. By setting the visible light transmittance to 80% or more, even if the size of the color measurement target is small, the color difference from the visual tint can be further reduced, and more accurate color measurement becomes possible. .. The "visible light transmittance" in the present specification is a visible light transmittance in the wavelength region of 380 to 780 nm measured in accordance with JIS R 3106: 2019.
マスク部材１０は、通常、透明又は半透明な材料（以下、纏めて「透明材料」とも記す）で形成されている。このような透明材料としては、アクリル樹脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、硬質ポリ塩化ビニル樹脂、ポリスチレン樹脂、ポリプロピレン樹脂、ポリエチレン樹脂、メチルメタクリレートアクリロニトリルブタジエンスチレン樹脂、アクリロニトリルスチレン樹脂、ポリアミド樹脂、フッ素樹脂、エポキシ樹脂、石英、及びガラス等を挙げることができる。なかでも、アクリル樹脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、硬質ポリ塩化ビニル樹脂、及びポリスチレン樹脂等の樹脂材料が、形状加工が容易であるとともに、安価で入手しやすい材料であるために好ましい。
The mask member 10 is usually made of a transparent or translucent material (hereinafter, collectively referred to as "transparent material"). Examples of such transparent materials include acrylic resin, polycarbonate resin, polyethylene terephthalate resin, hard polyvinyl chloride resin, polystyrene resin, polypropylene resin, polyethylene resin, methylmethacrylate acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polyamide resin, and fluororesin. Examples thereof include epoxy resin, quartz, and glass. Among them, resin materials such as acrylic resin, polycarbonate resin, polyethylene terephthalate resin, rigid polyvinyl chloride resin, and polystyrene resin are preferable because they are easy to shape and are inexpensive and easily available.
マスク部材１０の窓部５の最大開口径Ｄ１（図１）は、通常、測色対象（サンプル）の測定可能寸法より小さくする。すなわち、窓部５の最大開口径Ｄ１は、測色対象のサイズ等に応じて適宜設定すればよい。具体的に、マスク部材１０の窓部５の最大開口径Ｄ１は、２０ｍｍ以下とすることが好ましく、１５ｍｍ以下とすることがさらに好ましく、１３ｍｍ以下とすることが特に好ましい。なお、窓部５の最大開口径Ｄ１の下限については特に限定されず、実質的には分光光度計の測定径以上（例えば、４ｍｍ以上）であればよい。
The maximum opening diameter D 1 (FIG. 1) of the window portion 5 of the mask member 10 is usually made smaller than the measurable size of the color measurement target (sample). That is, the maximum opening diameter D1 of the window portion 5 may be appropriately set according to the size of the color measurement target and the like. Specifically, the maximum opening diameter D 1 of the window portion 5 of the mask member 10 is preferably 20 mm or less, more preferably 15 mm or less, and particularly preferably 13 mm or less. The lower limit of the maximum opening diameter D1 of the window portion 5 is not particularly limited, and may be substantially larger than the measured diameter of the spectrophotometer (for example, 4 mm or more).
マスク部材１０の外径（最大径）Ｄ２（図１）は特に限定されず、取り付ける測色装置本体の大きさ等に応じて適宜決定すればよい。具体的には、マスク部材１０の外径Ｄ２は、３０～１００ｍｍ程度であればよい。また、マスク部材１０の厚さＴ（図２）についても特に限定されず、実用的な範囲で適宜決定すればよい。具体的には、マスク部材１０の厚さＴは、０．１～５．０ｍｍ程度であればよい。
The outer diameter (maximum diameter) D 2 (FIG. 1) of the mask member 10 is not particularly limited, and may be appropriately determined according to the size of the color measuring device main body to be attached and the like. Specifically, the outer diameter D 2 of the mask member 10 may be about 30 to 100 mm. Further, the thickness T (FIG. 2) of the mask member 10 is not particularly limited, and may be appropriately determined within a practical range. Specifically, the thickness T of the mask member 10 may be about 0.1 to 5.0 mm.
本発明の一実施形態であるマスク部材は、図１及び２に示すような円板状の部材のみで構成されたものであってもよく、後述する測色装置の本体に装着するための装着部や、測色装置の本体にマスク部材が装着されたことを認識させるための検出部等のその他の構成をさらに備えていてもよい。
The mask member according to the embodiment of the present invention may be composed of only a disk-shaped member as shown in FIGS. 1 and 2, and is mounted for mounting on the main body of the color measuring device described later. It may further include other configurations such as a unit and a detection unit for recognizing that the mask member is attached to the main body of the color measuring device.
＜測色装置及び測色方法＞
次に、本発明の測色装置及び測色方法の実施の形態について説明する。本発明の測色装置の一実施形態は、その厚さ方向に光学的に貫通する窓部が形成された、測色対象と光源の間であり、かつ測色対象に当接する位置に配設されるマスク部材を備える測色装置である。そして、このマスク部材が、前述の本発明の一実施形態のマスク部材である。また、本発明の測色方法の一実施形態は、この測色装置を使用して測色対象を測色する工程を有する。以下、図面を参照しつつ、測色装置及び測色方法の詳細について説明する。 <Color measuring device and color measuring method>
Next, an embodiment of the color measuring device and the color measuring method of the present invention will be described. In one embodiment of the color measuring device of the present invention, a window portion optically penetrating in the thickness direction thereof is formed between the color measuring object and the light source, and is arranged at a position in contact with the color measuring object. It is a color measuring device including a mask member to be used. The mask member is the mask member according to the embodiment of the present invention described above. Further, one embodiment of the color measuring method of the present invention includes a step of measuring a color to be measured by using this color measuring device. Hereinafter, the details of the color measuring device and the color measuring method will be described with reference to the drawings.
次に、本発明の測色装置及び測色方法の実施の形態について説明する。本発明の測色装置の一実施形態は、その厚さ方向に光学的に貫通する窓部が形成された、測色対象と光源の間であり、かつ測色対象に当接する位置に配設されるマスク部材を備える測色装置である。そして、このマスク部材が、前述の本発明の一実施形態のマスク部材である。また、本発明の測色方法の一実施形態は、この測色装置を使用して測色対象を測色する工程を有する。以下、図面を参照しつつ、測色装置及び測色方法の詳細について説明する。 <Color measuring device and color measuring method>
Next, an embodiment of the color measuring device and the color measuring method of the present invention will be described. In one embodiment of the color measuring device of the present invention, a window portion optically penetrating in the thickness direction thereof is formed between the color measuring object and the light source, and is arranged at a position in contact with the color measuring object. It is a color measuring device including a mask member to be used. The mask member is the mask member according to the embodiment of the present invention described above. Further, one embodiment of the color measuring method of the present invention includes a step of measuring a color to be measured by using this color measuring device. Hereinafter, the details of the color measuring device and the color measuring method will be described with reference to the drawings.
図３は、本発明の測色装置の一実施形態を示す模式図である。図３に示すように、本実施形態の測色装置５０は、入射窓２、照射窓４、及び受光窓６が形成された積分球８と、入射窓２及び照射窓４を介して測色対象１２の表面に照射する照射光を発生させる光源１４と、測色対象１２の表面から反射してきた反射光を、受光窓６を介して受光する受光部１６と、測色対象１２と光源１４の間であり、かつ測色対象１２に当接する位置に配設されるマスク部材２０と、演算制御部１８とを備える、いわゆる分光タイプの測色装置である。そして、マスク部材２０は、その窓部１５が、積分球８の照射窓４と対応する位置となるように設けられている。
FIG. 3 is a schematic diagram showing an embodiment of the color measuring device of the present invention. As shown in FIG. 3, the color measuring device 50 of the present embodiment measures colors through an integrating sphere 8 in which an incident window 2, an irradiation window 4, and a light receiving window 6 are formed, and an incident window 2 and an irradiation window 4. A light source 14 that generates irradiation light to irradiate the surface of the target 12, a light receiving unit 16 that receives the reflected light reflected from the surface of the color measurement target 12 through the light receiving window 6, and a color measurement target 12 and the light source 14. It is a so-called spectroscopic type color measuring device including a mask member 20 arranged between the spaces and at a position abutting against the color measuring target 12, and a calculation control unit 18. The mask member 20 is provided so that the window portion 15 is located at a position corresponding to the irradiation window 4 of the integrating sphere 8.
積分球８の内壁面には、酸化マグネシウム（ＭｇＯ）や硫酸バリウム（ＢａＳＯ４）等の白色の拡散反射塗料が塗工されている。光源１４から発して入射窓２より積分球８内に入射した光は、積分球８の内壁面で拡散反射し、その一部（照射光）が照射窓４及びマスク部材２０の窓部１５を介して測色対象１２の表面に照射される。そして、測色対象１２の表面で反射してきた光（反射光）が、受光窓６を介して受光部１６で受光される。
The inner wall surface of the integrating sphere 8 is coated with a white diffuse-reflecting paint such as magnesium oxide (MgO) or barium sulfate (BaSO 4 ). The light emitted from the light source 14 and incident on the integrating sphere 8 from the incident window 2 is diffusely reflected on the inner wall surface of the integrating sphere 8, and a part (irradiation light) thereof presses the irradiation window 4 and the window portion 15 of the mask member 20. The surface of the color measurement target 12 is irradiated through. Then, the light (reflected light) reflected on the surface of the color measurement target 12 is received by the light receiving unit 16 through the light receiving window 6.
光源１４は、可視光領域（波長領域３８０～７８０ｎｍ）の光を発生しうることが好ましい。光源１４としては、例えば、キセノンランプ等を用いることができる。特定の波長成分の光を用いる場合には、光源１４と入射窓２の間に分光器を設けてもよい。受光部１６は、例えば、分光レンズ、分光器、及び複数の受光素子が配列されたアレイセンサを備える。受光部１６では、受光窓６を介して受光した反射光を分光レンズで分光して分光器に導入し、アレイセンサの波長成分毎の射出光量の値を演算制御部１８に出力する。そして、演算制御部１８で処理された情報は、入出力インターフェース３５を通じて外部へと出力することができる。
It is preferable that the light source 14 can generate light in the visible light region (wavelength region 380 to 780 nm). As the light source 14, for example, a xenon lamp or the like can be used. When light having a specific wavelength component is used, a spectroscope may be provided between the light source 14 and the incident window 2. The light receiving unit 16 includes, for example, a spectroscopic lens, a spectroscope, and an array sensor in which a plurality of light receiving elements are arranged. In the light receiving unit 16, the reflected light received through the light receiving window 6 is separated by a spectroscopic lens and introduced into the spectroscope, and the value of the emitted light amount for each wavelength component of the array sensor is output to the arithmetic control unit 18. Then, the information processed by the arithmetic control unit 18 can be output to the outside through the input / output interface 35.
本実施形態の測色装置５０は、その厚さ方向に貫通する窓部１５が形成された、透明又は半透明な前述のマスク部材２０を備える。このため、本実施形態の測色装置５０を使用すれば、比較的サイズの小さい測色対象１２であっても、目視感の色味との色差が小さく、より正確に測色することができる。本発明の測色装置は、図３に示すような、拡散照明光を用いて測色対象１２の表面を測色する、いわゆる拡散照明タイプの測色装置５０の他、単方向から照射される光を用いて測色する、いわゆる単方向照明タイプの測色装置であってもよい。
The color measuring device 50 of the present embodiment includes the above-mentioned transparent or translucent mask member 20 in which a window portion 15 penetrating in the thickness direction thereof is formed. Therefore, if the color measuring device 50 of the present embodiment is used, even if the color measuring target 12 has a relatively small size, the color difference from the visual tint is small, and the color can be measured more accurately. .. The color measuring device of the present invention is irradiated from a single direction in addition to the so-called diffused lighting type color measuring device 50 that measures the surface of the color measuring target 12 using diffused illumination light as shown in FIG. It may be a so-called unidirectional illumination type color measuring device that measures color using light.
図４Ａ及び４Ｂは、本発明の測色装置の使用態様を説明する模式図である。測色対象２２の表面を測色するには、図４Ａに示すように、まず、測色装置６０に設けられたマスク部材３０の窓部２５の前面に測色対象２２を配置する（図４Ａ）。そして、ホルダー３２により、測色対象２２をマスク部材３０に当接させて保持する（図４Ｂ）。この状態で測色装置６０を稼働させ、窓部２５を通じて測色対象２２の表面に照射光を照射する。次いで、生じた反射光を測色装置６０内で受光及び分析することで、測色対象２２の表面を測色することができる。前述の通り、測色装置６０は、その厚さ方向に貫通する窓部２５が形成された、透明又は半透明な前述のマスク部材３０を備えるため、この測色装置６０を使用することで、比較的サイズの小さい測色対象２２であっても、目視感の色味との色差が小さく、より正確に測色することができる。また、測色対象２２のサイズ等に応じて、窓部２５の最大開口径の異なるマスク部材３０を適宜選択して装着し、測色することができる。このため、本実施形態の測色装置及び測色方法によれば、測色対象の表面や測色対象自体のサイズ及び形状に柔軟に対応して正確に測色することができる。
4A and 4B are schematic views illustrating a usage mode of the color measuring device of the present invention. In order to measure the color of the surface of the color measurement target 22, first, as shown in FIG. 4A, the color measurement target 22 is arranged on the front surface of the window portion 25 of the mask member 30 provided in the color measurement device 60 (FIG. 4A). ). Then, the holder 32 abuts and holds the color measurement target 22 against the mask member 30 (FIG. 4B). In this state, the color measuring device 60 is operated, and the surface of the color measuring target 22 is irradiated with the irradiation light through the window portion 25. Next, the surface of the color measurement target 22 can be measured by receiving and analyzing the generated reflected light in the color measuring device 60. As described above, since the color measuring device 60 includes the above-mentioned transparent or translucent mask member 30 in which the window portion 25 penetrating in the thickness direction thereof is formed, the color measuring device 60 can be used. Even for the color measurement target 22 having a relatively small size, the color difference from the visual tint is small, and the color can be measured more accurately. Further, the mask members 30 having different maximum opening diameters of the window portion 25 can be appropriately selected and attached according to the size of the color measurement target 22 and the like, and the color can be measured. Therefore, according to the color measuring device and the color measuring method of the present embodiment, it is possible to flexibly and accurately measure the color according to the size and shape of the surface of the color measuring target or the color measuring target itself.
測色装置は、図４Ａ及び４Ｂに示すような横型据え置きタイプの測色装置に限定されず、前述のマスク部材を備えるものであればよい。例えば、その上面に測色対象を載置して測色する据え置きタイプの測色装置であってもよい。さらには、携帯型（ハンディタイプ）の測色装置であってもよい。
The color measuring device is not limited to the horizontal stationary type color measuring device as shown in FIGS. 4A and 4B, and may be any device provided with the above-mentioned mask member. For example, it may be a stationary type color measuring device in which a color measuring object is placed on the upper surface thereof to measure a color. Further, it may be a portable (handy type) color measuring device.
以下、本発明を実施例に基づいて具体的に説明するが、本発明はこれらの実施例に限定されるものではない。なお、実施例、比較例中の「部」及び「％」は、特に断らない限り質量基準である。
Hereinafter, the present invention will be specifically described based on examples, but the present invention is not limited to these examples. In addition, "part" and "%" in Examples and Comparative Examples are based on mass unless otherwise specified.
＜試験片の作製＞
（試験片１）
軟質透明ポリ塩化ビニル（ＰＶＣ）１００部に、白色顔料１（商品名「ディスコールＥＰ－４０５０」、大日精化工業社製）０．２２２部、黒色顔料１（商品名「ディスコールＰ－４７１０」、大日精化工業社製）０．０００４６部、緑色顔料１（商品名「ディスコールＥＰ－４５１４」、大日精化工業社製）０．００１４部、及び黄色顔料１（商品名「ディスコールＥＰ－４４４０」、大日精化工業社製）０．０２１８部を添加して混合した後、プレス成形して、厚さ約２ｍｍのプレスシートを得た。得られたプレスシートを適当なサイズに裁断して、黄緑色に着色した半透明の試験片１を得た。 <Preparation of test piece>
(Test piece 1)
100 parts of soft transparent polyvinyl chloride (PVC), 0.222 parts of white pigment 1 (trade name "Discol EP-4050", manufactured by Dainichiseika Kogyo Co., Ltd.), 1 part of black pigment (trade name "Discol P-4710") , Dainichiseika Kogyo Co., Ltd.) 0.00046 parts, green pigment 1 (trade name "Discol EP-4514", manufactured by Dainichiseika Kogyo Co., Ltd.) 0.0014 parts, and yellow pigment 1 (trade name "Discol") EP-4440 ”, manufactured by Dainichiseika Kogyo Co., Ltd.) 0.0218 parts were added and mixed, and then press-molded to obtain a press sheet having a thickness of about 2 mm. The obtained press sheet was cut to an appropriate size to obtain a translucent test piece 1 colored in yellowish green.
（試験片１）
軟質透明ポリ塩化ビニル（ＰＶＣ）１００部に、白色顔料１（商品名「ディスコールＥＰ－４０５０」、大日精化工業社製）０．２２２部、黒色顔料１（商品名「ディスコールＰ－４７１０」、大日精化工業社製）０．０００４６部、緑色顔料１（商品名「ディスコールＥＰ－４５１４」、大日精化工業社製）０．００１４部、及び黄色顔料１（商品名「ディスコールＥＰ－４４４０」、大日精化工業社製）０．０２１８部を添加して混合した後、プレス成形して、厚さ約２ｍｍのプレスシートを得た。得られたプレスシートを適当なサイズに裁断して、黄緑色に着色した半透明の試験片１を得た。 <Preparation of test piece>
(Test piece 1)
100 parts of soft transparent polyvinyl chloride (PVC), 0.222 parts of white pigment 1 (trade name "Discol EP-4050", manufactured by Dainichiseika Kogyo Co., Ltd.), 1 part of black pigment (trade name "Discol P-4710") , Dainichiseika Kogyo Co., Ltd.) 0.00046 parts, green pigment 1 (trade name "Discol EP-4514", manufactured by Dainichiseika Kogyo Co., Ltd.) 0.0014 parts, and yellow pigment 1 (trade name "Discol") EP-4440 ”, manufactured by Dainichiseika Kogyo Co., Ltd.) 0.0218 parts were added and mixed, and then press-molded to obtain a press sheet having a thickness of about 2 mm. The obtained press sheet was cut to an appropriate size to obtain a translucent test piece 1 colored in yellowish green.
（試験片２～１０）
着色剤（顔料）を表１に示す組成で用いたこと以外は、上述の試験片１と同様にして、表１に示す色相に着色した半透明の試験片２～１０を得た。表１中の着色剤（顔料）の詳細を以下に示す。
・白色顔料１：商品名「ディスコールＥＰ－４０５０」、大日精化工業社製
・黒色顔料１：商品名「ディスコールＰ－４７１０」、大日精化工業社製
・緑色顔料１：商品名「ディスコールＥＰ－４５１４」、大日精化工業社製
・黄色顔料１：商品名「ディスコールＥＰ－４４４０」、大日精化工業社製
・赤色顔料１：商品名「ディスコールＰ－４１２０」、大日精化工業社製
・黄色顔料２：商品名「ディスコールＰ－４４４３」、大日精化工業社製
・茶色顔料１：商品名「ディスコールＰ－４８２０」、大日精化工業社製
・黄色顔料３：商品名「ディスコールＰ－４４９０」、大日精化工業社製
・赤色顔料２：商品名「ディスコールＥＰ－４１７０」、大日精化工業社製
・紫色顔料１：商品名「ディスコールＰ－４９２８」、大日精化工業社製
・赤色顔料３：商品名「ディスコールＰ－４１９１」、大日精化工業社製
・青色顔料１：商品名「ディスコールＰ－４６２０」、大日精化工業社製 (Test pieces 2-10)
Translucent test pieces 2 to 10 colored in the hues shown in Table 1 were obtained in the same manner as the above-mentioned test piece 1 except that the colorant (pigment) was used in the composition shown in Table 1. Details of the colorants (pigments) in Table 1 are shown below.
・ White pigment 1: product name “Discol EP-4050”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Black pigment 1: product name “Discol P-4710”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Green pigment 1: product name “ "Discor EP-4514", manufactured by Dainichiseika Kogyo Co., Ltd.-Yellow pigment 1: product name "Discor EP-4440", manufactured by Dainichiseika Kogyo Co., Ltd.-Red pigment 1: product name "Discor P-4120", large Made by Nisseika Kogyo Co., Ltd. ・ Yellow pigment 2: Product name “Discor P-4443”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Brown pigment 1: Product name “Discol P-4820”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Yellow pigment 3: Product name "Discor P-4490", manufactured by Dainichiseika Kogyo Co., Ltd. ・ Red pigment 2: Product name "Discor EP-4170", manufactured by Dainichiseika Kogyo Co., Ltd. ・ Purple pigment 1: Product name "Discor P" -4928 ”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Red pigment 3: product name“ DISCOR P-4191 ”, manufactured by Dainichiseika Kogyo Co., Ltd. Made by the company
着色剤（顔料）を表１に示す組成で用いたこと以外は、上述の試験片１と同様にして、表１に示す色相に着色した半透明の試験片２～１０を得た。表１中の着色剤（顔料）の詳細を以下に示す。
・白色顔料１：商品名「ディスコールＥＰ－４０５０」、大日精化工業社製
・黒色顔料１：商品名「ディスコールＰ－４７１０」、大日精化工業社製
・緑色顔料１：商品名「ディスコールＥＰ－４５１４」、大日精化工業社製
・黄色顔料１：商品名「ディスコールＥＰ－４４４０」、大日精化工業社製
・赤色顔料１：商品名「ディスコールＰ－４１２０」、大日精化工業社製
・黄色顔料２：商品名「ディスコールＰ－４４４３」、大日精化工業社製
・茶色顔料１：商品名「ディスコールＰ－４８２０」、大日精化工業社製
・黄色顔料３：商品名「ディスコールＰ－４４９０」、大日精化工業社製
・赤色顔料２：商品名「ディスコールＥＰ－４１７０」、大日精化工業社製
・紫色顔料１：商品名「ディスコールＰ－４９２８」、大日精化工業社製
・赤色顔料３：商品名「ディスコールＰ－４１９１」、大日精化工業社製
・青色顔料１：商品名「ディスコールＰ－４６２０」、大日精化工業社製 (Test pieces 2-10)
・ White pigment 1: product name “Discol EP-4050”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Black pigment 1: product name “Discol P-4710”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Green pigment 1: product name “ "Discor EP-4514", manufactured by Dainichiseika Kogyo Co., Ltd.-Yellow pigment 1: product name "Discor EP-4440", manufactured by Dainichiseika Kogyo Co., Ltd.-Red pigment 1: product name "Discor P-4120", large Made by Nisseika Kogyo Co., Ltd. ・ Yellow pigment 2: Product name “Discor P-4443”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Brown pigment 1: Product name “Discol P-4820”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Yellow pigment 3: Product name "Discor P-4490", manufactured by Dainichiseika Kogyo Co., Ltd. ・ Red pigment 2: Product name "Discor EP-4170", manufactured by Dainichiseika Kogyo Co., Ltd. ・ Purple pigment 1: Product name "Discor P" -4928 ”, manufactured by Dainichiseika Kogyo Co., Ltd. ・ Red pigment 3: product name“ DISCOR P-4191 ”, manufactured by Dainichiseika Kogyo Co., Ltd. Made by the company
＜マスク部材の製造＞
（実施例１）
アクリル樹脂（ポリメチルメタクリレート）製の透明な板状部材（厚さ：１ｍｍ）を形状加工し、図１及び２に示すような形状のマスク部材（マスク１）を得た。マスク１の窓部の最大開口径Ｄ１は１５ｍｍとし、外径Ｄ２は６０ｍｍとした。ＪＩＳ Ｋ ７３６１－１：１９９７に準拠して測定したマスク１の波長領域４００～７００ｎｍの全光線透過率は、９０％以上であった。 <Manufacturing of mask members>
(Example 1)
A transparent plate-shaped member (thickness: 1 mm) made of acrylic resin (polymethylmethacrylate) was shaped to obtain a mask member (mask 1) having a shape as shown in FIGS. 1 and 2. The maximum opening diameter D 1 of the window portion of the mask 1 was 15 mm, and the outer diameter D 2 was 60 mm. The total light transmittance of the mask 1 in the wavelength region of 400 to 700 nm measured in accordance with JIS K 7631-1: 1997 was 90% or more.
（実施例１）
アクリル樹脂（ポリメチルメタクリレート）製の透明な板状部材（厚さ：１ｍｍ）を形状加工し、図１及び２に示すような形状のマスク部材（マスク１）を得た。マスク１の窓部の最大開口径Ｄ１は１５ｍｍとし、外径Ｄ２は６０ｍｍとした。ＪＩＳ Ｋ ７３６１－１：１９９７に準拠して測定したマスク１の波長領域４００～７００ｎｍの全光線透過率は、９０％以上であった。 <Manufacturing of mask members>
(Example 1)
A transparent plate-shaped member (thickness: 1 mm) made of acrylic resin (polymethylmethacrylate) was shaped to obtain a mask member (mask 1) having a shape as shown in FIGS. 1 and 2. The maximum opening diameter D 1 of the window portion of the mask 1 was 15 mm, and the outer diameter D 2 was 60 mm. The total light transmittance of the mask 1 in the wavelength region of 400 to 700 nm measured in accordance with JIS K 7631-1: 1997 was 90% or more.
（実施例２～３）
窓部の最大開口径Ｄ１を１１ｍｍ、７ｍｍとしたこと以外は、前述の実施例１と同様にしてマスク部材（マスク２及び３）を得た。 (Examples 2 to 3)
Mask members (masks 2 and 3) were obtained in the same manner as in Example 1 described above, except that the maximum opening diameter D1 of the window portion was set to 11 mm and 7 mm.
窓部の最大開口径Ｄ１を１１ｍｍ、７ｍｍとしたこと以外は、前述の実施例１と同様にしてマスク部材（マスク２及び３）を得た。 (Examples 2 to 3)
Mask members (
（比較例１～４）
市販の分光測色計（商品名「ＣＭ－３６００Ａ」、コニカミノルタ社製）の付属品である不透明な３種類のターゲットマスク（Ｄ１：３０ｍｍ、１１ｍｍ、７ｍｍ）をマスク４～６とした。また、不透明な板状素材（厚さ：１ｍｍ）を形状加工したマスク（Ｄ１：１５ｍｍ）をマスク７とした。これらのマスク４～７の全光線透過率は、いずれも０％であった。 (Comparative Examples 1 to 4)
Three types of opaque target masks (D 1 : 30 mm, 11 mm, 7 mm), which are accessories of a commercially available spectrocolorimeter (trade name "CM-3600A", manufactured by Konica Minolta Co., Ltd.), were used asmasks 4 to 6. Further, a mask (D 1 : 15 mm) formed by shaping an opaque plate-shaped material (thickness: 1 mm) was used as the mask 7. The total light transmittance of these masks 4 to 7 was 0%.
市販の分光測色計（商品名「ＣＭ－３６００Ａ」、コニカミノルタ社製）の付属品である不透明な３種類のターゲットマスク（Ｄ１：３０ｍｍ、１１ｍｍ、７ｍｍ）をマスク４～６とした。また、不透明な板状素材（厚さ：１ｍｍ）を形状加工したマスク（Ｄ１：１５ｍｍ）をマスク７とした。これらのマスク４～７の全光線透過率は、いずれも０％であった。 (Comparative Examples 1 to 4)
Three types of opaque target masks (D 1 : 30 mm, 11 mm, 7 mm), which are accessories of a commercially available spectrocolorimeter (trade name "CM-3600A", manufactured by Konica Minolta Co., Ltd.), were used as
＜評価＞
（色差（ΔＥ＊）の測定及び算出）
マスク１～７を市販の分光測色計（商品名「ＣＭ－３６００Ａ」、コニカミノルタ社製）の測色箇所（照射窓）にそれぞれ取り付けた。そして、ＳＣＩ、ＣＩＥ標準光源Ｄ６５を使用し、視野：１０°、白下地、の条件で試験片１～１０を測色し、目視の色味と色差が小さいマスク４（Ｄ１：３０ｍｍ）を「標準」とする色差ΔＥ＊を算出した。結果を表２に示す。 <Evaluation>
(Measurement and calculation of color difference (ΔE *))
Masks 1 to 7 were attached to the color measurement points (irradiation windows) of commercially available spectrocolorimeters (trade name "CM-3600A", manufactured by Konica Minolta Co., Ltd.). Then, using the SCI and CIE standard light sources D65, the test pieces 1 to 10 are measured under the conditions of a field of view: 10 ° and a white background, and a mask 4 (D 1 : 30 mm) having a small visual tint and color difference is applied. The color difference ΔE * as the “standard” was calculated. The results are shown in Table 2.
（色差（ΔＥ＊）の測定及び算出）
マスク１～７を市販の分光測色計（商品名「ＣＭ－３６００Ａ」、コニカミノルタ社製）の測色箇所（照射窓）にそれぞれ取り付けた。そして、ＳＣＩ、ＣＩＥ標準光源Ｄ６５を使用し、視野：１０°、白下地、の条件で試験片１～１０を測色し、目視の色味と色差が小さいマスク４（Ｄ１：３０ｍｍ）を「標準」とする色差ΔＥ＊を算出した。結果を表２に示す。 <Evaluation>
(Measurement and calculation of color difference (ΔE *))
Masks 1 to 7 were attached to the color measurement points (irradiation windows) of commercially available spectrocolorimeters (trade name "CM-3600A", manufactured by Konica Minolta Co., Ltd.). Then, using the SCI and CIE standard light sources D65, the test pieces 1 to 10 are measured under the conditions of a field of view: 10 ° and a white background, and a mask 4 (D 1 : 30 mm) having a small visual tint and color difference is applied. The color difference ΔE * as the “standard” was calculated. The results are shown in Table 2.
本発明の一実施形態であるマスク部材を備える測色装置を用いれば、比較的サイズの小さい測色対象であっても、目視感の色味との色差が小さく、より正確に測色することができる。
By using a color measuring device provided with a mask member according to an embodiment of the present invention, even a relatively small color measuring object has a small color difference from the visual tint and can measure colors more accurately. Can be done.
２：入射窓
４：照射窓
５，１５，２５：窓部
６：受光窓
８：積分球
１０，２０，３０：マスク部材
１２，２２：測色対象
１４：光源
１６：受光部
１８：演算制御部
３２：ホルダー
３５：入出力インターフェース
５０，６０：測色装置
2: Incident window 4: Irradiation window 5, 15, 25: Window part 6: Light receiving window 8: Integrating sphere 10, 20, 30: Mask member 12, 22: Color measurement target 14: Light source 16: Light receiving part 18: Arithmetic control Part 32: Holder 35: Input / output interface 50, 60: Color measuring device
４：照射窓
５，１５，２５：窓部
６：受光窓
８：積分球
１０，２０，３０：マスク部材
１２，２２：測色対象
１４：光源
１６：受光部
１８：演算制御部
３２：ホルダー
３５：入出力インターフェース
５０，６０：測色装置
2: Incident window 4:
Claims (5)
- その厚さ方向に物理的に貫通する窓部が形成された、測色対象と光源の間であり、かつ前記測色対象に当接する位置に配設され、前記窓部を塞ぐ位置に前記測定対象を配置して前記測定対象を測色する測色装置用のマスク部材であって、
透明又は半透明であり、
前記窓部の最大開口径が、２０ｍｍ以下であるとともに前記測定対象の寸法よりも小さいマスク部材。 The measurement is performed at a position between the color measurement target and the light source where a window portion physically penetrating in the thickness direction is formed and at a position where the color measurement target is in contact with the color measurement target and closes the window portion. A mask member for a color measuring device that arranges an object and measures the color of the measurement object.
Transparent or translucent,
A mask member having a maximum opening diameter of 20 mm or less and smaller than the dimension to be measured. - ＪＩＳ Ｋ ７３６１－１：１９９７に準拠して測定される波長領域４００～７００ｎｍの全光線透過率が、８０％以上である請求項１に記載のマスク部材。 The mask member according to claim 1, wherein the total light transmittance in the wavelength region of 400 to 700 nm measured in accordance with JIS K 7631-1: 1997 is 80% or more.
- アクリル樹脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、硬質ポリ塩化ビニル樹脂、ポリスチレン樹脂、ポリプロピレン樹脂、ポリエチレン樹脂、メチルメタクリレートアクリロニトリルブタジエンスチレン樹脂、アクリロニトリルスチレン樹脂、ポリアミド樹脂、フッ素樹脂、エポキシ樹脂、石英、又はガラスにより形成されている請求項１又は２に記載のマスク部材。 Acrylic resin, polycarbonate resin, polyethylene terephthalate resin, hard polyvinyl chloride resin, polystyrene resin, polypropylene resin, polyethylene resin, methylmethacrylate acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polyamide resin, fluororesin, epoxy resin, quartz, or glass The mask member according to claim 1 or 2, which is formed.
- その厚さ方向に物理的に貫通する窓部が形成された、測色対象と光源の間であり、かつ前記測色対象に当接する位置に配設されるマスク部材を備える、前記窓部を塞ぐ位置に前記測定対象を配置して前記測定対象を測色する測色装置であって、
前記マスク部材が、請求項１～３のいずれか一項に記載のマスク部材である測色装置。 A window portion having a mask member arranged between a color measurement target and a light source and at a position of contact with the color measurement target, having a window portion physically penetrating in the thickness direction thereof. It is a color measuring device that arranges the measurement target at a position to be closed and measures the color of the measurement target.
A color measuring device in which the mask member is the mask member according to any one of claims 1 to 3. - 請求項４に記載の測色装置を使用して測色対象を測色する工程を有する測色方法。
A color measuring method comprising a step of measuring a color to be measured by using the color measuring device according to claim 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020149011A JP6921286B1 (en) | 2020-09-04 | 2020-09-04 | Mask member for color measuring device, color measuring device, and color measuring method |
| JP2020-149011 | 2020-09-04 |
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| Publication Number | Publication Date |
|---|---|
| WO2022050055A1 true WO2022050055A1 (en) | 2022-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/030277 WO2022050055A1 (en) | 2020-09-04 | 2021-08-19 | Mask member for color measurement device, color measurement device, and color measurement method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6921286B1 (en) |
| TW (1) | TW202215012A (en) |
| WO (1) | WO2022050055A1 (en) |
Citations (9)
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|---|---|---|---|---|
| JPS60222731A (en) * | 1984-04-18 | 1985-11-07 | Sumitomo Chem Co Ltd | Colorimetry apparatus for ultraviolet fluorescent body |
| JPS6129724A (en) * | 1984-07-20 | 1986-02-10 | Sumitomo Chem Co Ltd | Colorimetric method |
| JPH11337485A (en) * | 1998-05-28 | 1999-12-10 | Kett Electric Lab | Sensor part for whiteness degree meter for powder and grain |
| JP2002267600A (en) * | 2001-03-12 | 2002-09-18 | Minolta Co Ltd | Reflecting characteristic measuring device |
| US20080204705A1 (en) * | 2007-02-23 | 2008-08-28 | Yan Liu | Apparatus and method for color measurement and color grading of diamonds, gemstones and the like |
| JP2009121942A (en) * | 2007-11-15 | 2009-06-04 | Nisshinbo Ind Inc | Attachment tool of object to be measured in micro colorimetry |
| JP2015206638A (en) * | 2014-04-18 | 2015-11-19 | コニカミノルタ株式会社 | Colorimetry device, mask member and colorimetry system |
| JP2015212641A (en) * | 2014-05-01 | 2015-11-26 | コニカミノルタ株式会社 | Portable colorimetry device and portable colorimetry system |
| JP2015215239A (en) * | 2014-05-12 | 2015-12-03 | コニカミノルタ株式会社 | Portable colorimetric system and mask member |
-
2020
- 2020-09-04 JP JP2020149011A patent/JP6921286B1/en active Active
-
2021
- 2021-08-19 WO PCT/JP2021/030277 patent/WO2022050055A1/en active Application Filing
- 2021-08-26 TW TW110131557A patent/TW202215012A/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60222731A (en) * | 1984-04-18 | 1985-11-07 | Sumitomo Chem Co Ltd | Colorimetry apparatus for ultraviolet fluorescent body |
| JPS6129724A (en) * | 1984-07-20 | 1986-02-10 | Sumitomo Chem Co Ltd | Colorimetric method |
| JPH11337485A (en) * | 1998-05-28 | 1999-12-10 | Kett Electric Lab | Sensor part for whiteness degree meter for powder and grain |
| JP2002267600A (en) * | 2001-03-12 | 2002-09-18 | Minolta Co Ltd | Reflecting characteristic measuring device |
| US20080204705A1 (en) * | 2007-02-23 | 2008-08-28 | Yan Liu | Apparatus and method for color measurement and color grading of diamonds, gemstones and the like |
| JP2009121942A (en) * | 2007-11-15 | 2009-06-04 | Nisshinbo Ind Inc | Attachment tool of object to be measured in micro colorimetry |
| JP2015206638A (en) * | 2014-04-18 | 2015-11-19 | コニカミノルタ株式会社 | Colorimetry device, mask member and colorimetry system |
| JP2015212641A (en) * | 2014-05-01 | 2015-11-26 | コニカミノルタ株式会社 | Portable colorimetry device and portable colorimetry system |
| JP2015215239A (en) * | 2014-05-12 | 2015-12-03 | コニカミノルタ株式会社 | Portable colorimetric system and mask member |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202215012A (en) | 2022-04-16 |
| JP6921286B1 (en) | 2021-08-18 |
| JP2022043634A (en) | 2022-03-16 |
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