WO2009127356A1 - Verfahren zur herstellung effektpigmenthaltiger farbrezepturen - Google Patents
Verfahren zur herstellung effektpigmenthaltiger farbrezepturen Download PDFInfo
- Publication number
- WO2009127356A1 WO2009127356A1 PCT/EP2009/002625 EP2009002625W WO2009127356A1 WO 2009127356 A1 WO2009127356 A1 WO 2009127356A1 EP 2009002625 W EP2009002625 W EP 2009002625W WO 2009127356 A1 WO2009127356 A1 WO 2009127356A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- color
- reflection values
- pigments
- transformed
- color original
- Prior art date
Links
- 239000000049 pigment Substances 0.000 title claims abstract description 78
- 230000000694 effects Effects 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 238000007620 mathematical function Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 19
- 238000009472 formulation Methods 0.000 claims description 15
- 238000004043 dyeing Methods 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 239000000976 ink Substances 0.000 claims description 3
- 238000010186 staining Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000004040 coloring Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000001228 spectrum Methods 0.000 description 11
- 235000019646 color tone Nutrition 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000001033 copper pigment Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- RQGPLDBZHMVWCH-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole Chemical compound C1=NC2=CC=NC2=C1 RQGPLDBZHMVWCH-UHFFFAOYSA-N 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/463—Colour matching
Definitions
- the invention relates to a process for the preparation of color pigments containing effect pigments, which can be adapted in a few steps to a color original (target color tone).
- the color tone which is produced by weighing the quantities of constituents specified in a color formulation, with respect to a predetermined target color shade with the smallest possible deviation.
- the aim of the toning of the batches is to adjust the color of the batch to the target color tone with as few tinting steps as possible, in the interest of economic efficiency. This adjustment is made by slight changes in the amounts of colored ingredients contained in the recipe, such as color and effect pigments, and possibly by adding further Tönzu accounts in low concentrations.
- the adjustment step is only completed when an acceptable residual color difference has been reached between the color of the batch and the target color (color original).
- the optical material parameters A ⁇ (absorption coefficient) and S ⁇ (scattering coefficient) determined. These optical material parameters are determined both for the color original and separately for the colored components contained in the dyeing system used, such as color and effect pigments, and optionally for further Tönzuaxe the dyeing system used with the aid of appropriate calibration scales of these components.
- optical material parameters of mixtures e.g. of color formulas are composed additively of the corresponding individual contributions of the constituents of the mixture.
- the individual contributions are weighted with the respective concentrations of the individual constituents.
- the pigments of a dyeing system may comprise, for example, colored pigments and effect pigments. Colored pigments absorb visible light of certain wavelengths of the electromagnetic spectrum. Therefore, they reflect only part of the light that is reflected by white pigments.
- reflection spectra In the instrumental measurement of reflection spectra, one refers to a white standard assumed to be an ideal matt white surface whose reflectance values for all wavelengths of visible light are, by definition, exactly one.
- the reflection spectra of colored pigments therefore have reflectance values between 0 and 1 for wavelengths in the visible range of the light due to the absorption properties of the colored pigments.
- the Kubelka-Munk approximation of the radiative transfer equation is known and suitable.
- a simple relationship between the reflection spectra of, for example, an opaque lacquer layer and the scattering and absorption coefficients of the pigments contained in this layer is derived.
- the wavelength-dependent optical material parameters (scattering and absorption coefficients) of colored pigments are calculated for each pigment by means of calibration scales, measurements of Reflection spectra and application of the Kubelka-Munk approximation in a manner known in the art experimentally determined.
- effect pigments however, the simple Kubelka-Munk approximation of the radiative transfer equation is not readily applicable.
- effect pigments In contrast to colored pigments, effect pigments have a significant three-dimensional extent, typically about 5 to 40 ⁇ m in the lateral direction with a thickness of about 5 ⁇ m. In the case of aluminum pigments, for example, this results in a directed reflection of the incident light, so that the degree of reflection can exceed that of a white pigment. The reflection values determined in comparison to the white standard can therefore exceed the value of 1 in the case of effect pigments. This is the case in particular for the uniformly flat orientation of the effect pigments in the lacquer layer which is desirable for metal ic lacquers.
- the application of the Kubelka-Munk approximation of the radiative transfer equation is limited to reflection values between 0 and 1, it can not be used to determine the optical material parameters of color pigments containing pigment.
- a disadvantage of the known methods is that they allow the adjustment of effect pigment-containing color formulations only with great effort, since they offer no way to use the simple Kubelka-Munk approximation of the radiative transfer equation for effect pigments.
- the object of the invention is therefore to provide a method for the calculation of color pigments containing effect pigments, which also allows the use of the Kubelka-Munk approximation for pigments with reflection values> 1 and thus permits the adjustment of color pigments containing effect pigments without a great deal of time and with a reduced number of color tinting steps.
- This object is achieved by providing the method according to the invention.
- Dyeing systems are understood to be any systems of absorption and / or effect pigments. Number and selection of the pigment components are not subject to any restrictions. They can be adapted to the respective requirements. For example, such a dyeing system can be based on all pigment components of a standardized mixed-paint system.
- the coloring absorption pigments are, for example, customary organic or inorganic absorption pigments which can be used in the coatings industry.
- organic absorption pigments are azo pigments, phthalocyanine, quinacridone and pyrrolopyrrole pigments.
- inorganic absorption pigments are iron oxide or lead oxide pigments, titanium dioxide and carbon black.
- Effect pigments are to be understood as meaning all pigments which have a platelet-like structure and give a surface coating special decorative effects.
- the effect pigments are, for example, all effect pigments which can usually be used in vehicle and industrial coating or in ink and dye production.
- Examples of such effect pigments are pure metal pigments such as, for example, aluminum, iron or copper pigments, interference pigments such as titanium dioxide coated mica, iron oxide coated mica, mixed oxide coated mica, metal oxide coated mica or liquid crystal pigments.
- a stationary or portable goniospectrophotometer with symmetrical or asymmetrical measuring geometry can be used. Both illumination and observation modulation devices can be used. The measurements can be performed at as many different illumination and / or observation angles as necessary to adequately characterize the color original and the pigments of the staining system. If reflection values> 1 occur, these are also taken into account in the determination of the optical material parameters described below.
- the optical material parameters are determined by adapting the radiative transfer equation in terms of a l_ 2 standard to the reflection spectra determined experimentally for each pigment. The Kubelka-Munk approximation of the radiative transfer equation is used for this:
- reflection values R ⁇ which are greater than 1 occur, first all reflection values R ⁇ of the color original and the calibration scales are transformed by means of a suitable mathematical function such that the transformed reflection values R i lie between 0 and 1. All reflection values are transformed in the same way.
- any suitable mathematical function is used.
- any function is suitable, the application of which preserves the proportionality of the reflection values to one another and, after their application, the transformed reflection values R ' ⁇ lie between 0 and 1 (0 ⁇ R ' ⁇ ⁇ 1).
- the transformation of the reflection values R ⁇ to R ' ⁇ can be effected by means of the division by a factor f:
- the factor f is chosen such that all transformed reflection values lie between 0 and 1.
- the optical material parameters of the color original and the calibration scales are determined by means of the Kubelka-Munk approximation of the radiative transfer equation in the manner known to the person skilled in the art.
- the selection of the starting formulation as well as the determination of the residual color difference are likewise carried out in a manner known to the person skilled in the art.
- the optical material parameters A ⁇ and S ' ⁇ of the starting formulation are obtained after selecting the starting formulation. From this, the theoretical reflection values R ' ⁇ ith of the starting formulation can then be determined according to the Kubelka-Munk approximation.
- the difference ⁇ R' ⁇ R ' ⁇ - R' ⁇ , t h, in which R ' ⁇ refers to transformed reflection values of the color original and R' ⁇ iö1 to theoretical reflection values of the starting formulation, is a measure of the accuracy of the Kubelka-Munk Invoice at the considered wavelength. Integration over the visible spectrum range from 400 to 700 nm yields the Kubelka Munk error ⁇ R ' :
- Fig. 1 is a schematic representation of the hue adjustment by means of the inventive method (n-ESL) in comparison to the classical method.
- a corrected hue is achieved for the same target hue starting from the same reference mixture by calculating a start recipe and stepwise correction, which achieves an acceptable residual color difference in terms of the associated hue standard.
- much more tinting steps are required by the classical method to reach the target point than in the new method according to the invention.
- a characteristic of the method according to the invention can be seen in the fact that a very close approach to the target point already succeeds in the first toning step.
- the specification limits can be achieved in a small amount of time in a few tinting steps.
- the process according to the invention can be used, for example, for the color shade of paints and printing inks or polymer dispersions.
- An advantage of the method according to the invention is that it simplifies the adjustment of colorants containing effect pigments.
- the method according to the invention makes it possible to adapt color pigments containing effect pigment to a target color tone using the proven Kubelka-Munk calculation for effect pigments, since reflection values> 1 can also be taken into account by the method according to the invention.
- the inventive method reduces the number of Tönönuzee required until reaching the specification limits protagonistpigmentumbler color templates and reduces the time required for their adjustment.
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectrometry And Color Measurement (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801126856A CN102007390A (zh) | 2008-04-14 | 2009-04-09 | 制备包含效应颜料的颜色配方的方法 |
US12/936,742 US20110058173A1 (en) | 2008-04-14 | 2009-04-09 | Method for producing color formulas comprising effect pigments |
EP09732196A EP2269014A1 (de) | 2008-04-14 | 2009-04-09 | Verfahren zur herstellung effektpigmenthaltiger farbrezepturen |
JP2011504354A JP2011516699A (ja) | 2008-04-14 | 2009-04-09 | エフェクト顔料の色調合を作り出す方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008018910.3 | 2008-04-14 | ||
DE102008018910A DE102008018910A1 (de) | 2008-04-14 | 2008-04-14 | Verfahren zur Herstellung effektpigmenthaltiger Farbrezepturen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009127356A1 true WO2009127356A1 (de) | 2009-10-22 |
Family
ID=40849224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/002625 WO2009127356A1 (de) | 2008-04-14 | 2009-04-09 | Verfahren zur herstellung effektpigmenthaltiger farbrezepturen |
Country Status (7)
Country | Link |
---|---|
US (1) | US20110058173A1 (de) |
EP (1) | EP2269014A1 (de) |
JP (1) | JP2011516699A (de) |
KR (1) | KR20110003527A (de) |
CN (1) | CN102007390A (de) |
DE (1) | DE102008018910A1 (de) |
WO (1) | WO2009127356A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013116192A1 (en) * | 2012-02-03 | 2013-08-08 | Ppg Industries Ohio, Inc. | Optimal tint selection |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8338439B2 (en) * | 2008-06-27 | 2012-12-25 | Celgene Avilomics Research, Inc. | 2,4-disubstituted pyrimidines useful as kinase inhibitors |
US20140242271A1 (en) * | 2011-09-30 | 2014-08-28 | Axalta Coating Systmes Ip Co., Llc | Method for matching color and appearance of coatings containing effect pigments |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1103950A (en) * | 1965-07-30 | 1968-02-21 | Communications Patents Ltd | Improved method for determining recipes of mixtures of pigments for colouring paints, plastics and like materials |
EP0360738A1 (de) * | 1988-09-05 | 1990-03-28 | Ciba-Geigy Ag | Verfahren und Vorrichtung zur Erstellung von Farbrezepten |
US5023814A (en) * | 1985-02-15 | 1991-06-11 | Guillemin Jean Pierre H B | Method and apparatus for countertyping a tint from a collection of base tints |
EP0828144A2 (de) | 1996-09-10 | 1998-03-11 | Herberts Gesellschaft mit beschränkter Haftung | Verfahren zur Anspassung einer Farbrezeptur |
US7167246B1 (en) | 2002-07-12 | 2007-01-23 | The Sherwin-Williams Company | Method of color matching metallic paints |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3601589A (en) * | 1969-09-19 | 1971-08-24 | Mobil Oil | Process and apparatus for producing colored chemical coatings |
US5231472A (en) * | 1991-09-16 | 1993-07-27 | Ppg Industries, Inc. | Color matching and characterization of surface coatings |
JPH0933347A (ja) * | 1995-07-18 | 1997-02-07 | Toyota Motor Corp | 色再現方法 |
DE19720887C2 (de) | 1997-05-17 | 1999-04-01 | Herberts & Co Gmbh | Verfahren zur Farbrezeptberechnung pigmentierter Effektfarbtöne |
JPH11228879A (ja) * | 1998-02-16 | 1999-08-24 | Nisshinbo Ind Inc | 塗料作成における配合修正方法 |
JP2005049539A (ja) * | 2003-07-31 | 2005-02-24 | Mitsubishi Chemicals Corp | 電析表示用電解液および電析型表示装置 |
DE102004035066A1 (de) * | 2004-05-26 | 2006-03-02 | Basf Ag | Verfahren zur Strahlungshärtung von Beschichtungen |
JP2005326389A (ja) * | 2004-11-11 | 2005-11-24 | Kansai Paint Co Ltd | メタリツク塗膜の光学的性質を決定する方法 |
-
2008
- 2008-04-14 DE DE102008018910A patent/DE102008018910A1/de not_active Withdrawn
-
2009
- 2009-04-09 KR KR1020107025239A patent/KR20110003527A/ko not_active Application Discontinuation
- 2009-04-09 WO PCT/EP2009/002625 patent/WO2009127356A1/de active Application Filing
- 2009-04-09 CN CN2009801126856A patent/CN102007390A/zh active Pending
- 2009-04-09 US US12/936,742 patent/US20110058173A1/en not_active Abandoned
- 2009-04-09 EP EP09732196A patent/EP2269014A1/de not_active Withdrawn
- 2009-04-09 JP JP2011504354A patent/JP2011516699A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1103950A (en) * | 1965-07-30 | 1968-02-21 | Communications Patents Ltd | Improved method for determining recipes of mixtures of pigments for colouring paints, plastics and like materials |
US5023814A (en) * | 1985-02-15 | 1991-06-11 | Guillemin Jean Pierre H B | Method and apparatus for countertyping a tint from a collection of base tints |
EP0360738A1 (de) * | 1988-09-05 | 1990-03-28 | Ciba-Geigy Ag | Verfahren und Vorrichtung zur Erstellung von Farbrezepten |
EP0828144A2 (de) | 1996-09-10 | 1998-03-11 | Herberts Gesellschaft mit beschränkter Haftung | Verfahren zur Anspassung einer Farbrezeptur |
US7167246B1 (en) | 2002-07-12 | 2007-01-23 | The Sherwin-Williams Company | Method of color matching metallic paints |
Non-Patent Citations (1)
Title |
---|
EMMEL P ET AL: "A UNIFIED MODEL FOR COLOR PREDICTION OF HALFTONED PRINTS", JOURNAL OF IMAGING SCIENCE AND TECHNOLOGY, SOCIETY OF IMAGING SCIENCE & TECHNOLOGY, SPRINGFIELD, VA, US, vol. 44, no. 4, 1 July 2000 (2000-07-01), pages 351 - 359, XP000993147, ISSN: 1062-3701 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013116192A1 (en) * | 2012-02-03 | 2013-08-08 | Ppg Industries Ohio, Inc. | Optimal tint selection |
US8692991B2 (en) | 2012-02-03 | 2014-04-08 | Ppg Industries Ohio, Inc. | Optimal tint identifier/selector |
AU2013215413B2 (en) * | 2012-02-03 | 2014-11-20 | Ppg Industries Ohio, Inc. | Optimal tint selection |
EP2810030B1 (de) * | 2012-02-03 | 2022-03-23 | PPG Industries Ohio, Inc. | Optimierte pigmentauswahl |
Also Published As
Publication number | Publication date |
---|---|
EP2269014A1 (de) | 2011-01-05 |
JP2011516699A (ja) | 2011-05-26 |
CN102007390A (zh) | 2011-04-06 |
US20110058173A1 (en) | 2011-03-10 |
DE102008018910A1 (de) | 2009-12-31 |
KR20110003527A (ko) | 2011-01-12 |
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