WO1998038044A2 - Metodo para la obtencion de una tabulacion que permite representar una gama de colores reproducibles con exactitud - Google Patents
Metodo para la obtencion de una tabulacion que permite representar una gama de colores reproducibles con exactitud Download PDFInfo
- Publication number
- WO1998038044A2 WO1998038044A2 PCT/MX1998/000008 MX9800008W WO9838044A2 WO 1998038044 A2 WO1998038044 A2 WO 1998038044A2 MX 9800008 W MX9800008 W MX 9800008W WO 9838044 A2 WO9838044 A2 WO 9838044A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- color
- volume
- colors
- black
- primary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/14—Multicolour printing
- B41M1/18—Printing one ink over another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
Definitions
- the present invention relates to the technique for color matching and selection within the Color Industry, and more particularly it is related to a method for obtaining a tabulation that makes it possible to represent a range of reproducible colors accurately.
- the printing method through flat colors requires opaque inks of solid colors, each of which results from a mixture of different pigments, which allows to obtain a great diversity of colors; while the printing method through colors process requires four standard transparent ink pigments, namely yellow, magenta, cyan and black.
- the various combinations of the standard process color inks when printed in different percentages of dot sizes or screens, allow to create a whole range of colors that make up the color scale that can be obtained by using this printing method.
- the press spreads the transparent inks of the colors yellow, magenta, cyan and black on the paper as small dots or halftone screens, each of which varies in size from 1 to 99 percent
- the sequential order of application which is used during printing is black, cyan, magenta and yellow.
- a further object of the present invention is to provide a method for obtaining a tabulation that makes it possible to represent a range of reproducible colors with accuracy, which allows to clearly show the difference between color and tone.
- T It is the color tone in percentage (%)
- V It is the volume of the color in volumetric units
- the method for obtaining a tabulation that makes it possible to represent a range of reproducible colors accurately, and which is described below, basically comprises the elaboration of a tabulation to obtain a catalog or .sample of colors that allows us select, obtain and match colors, from the application of a mathematical expression that we will define later, which allows us to obtain by means of arithmetic calculations, a series of values for each of the primary colors used in the method of the present invention, which are transparent pigments of balanced primary colors.
- any painting shows 100% of its "tone” in our view, only when it is deposited in the form of a uniform "thick” film, on a white surface.
- This thickness or height of film is defined as the ROC.
- a "screen” has the property of giving our view the same shade as a layer of paint of a thickness corresponding to the percentage of the screen.
- a layer thickness of 1 ROC corresponds to 100% of the screen; and, at 0% of the screen corresponds a layer thickness of 0 ROC.
- the yellow color used in the present invention is the primary yellow color with a density of 75% and a layer thickness of 1 ROC.
- the magenta color used in the present invention is the primary magenta color with a density of 50% and a layer thickness of 1 ROC.
- the cyan color used in the present invention is the primary cyan color with a density of 25% and a layer thickness of 1 ROC.
- the primary colors are mixed according to the following sequence: 1) .- RED COLORS.
- the red colors are obtained by mixing the primary colors yellow and magenta.
- Green colors are obtained by mixing the primary colors yellow and cyan. Defining that (a) is the volume of yellow color and (b) is the volume of cyan color, if we vary the amounts of each of them, the following is obtained.
- Violet colors are obtained by mixing the magenta and cyan primary colors. Defining that (a) is the volume of magenta color and (b) is the volume of cyan color, if we vary the quantities of each of them, the following is obtained:
- the method for obtaining a tabulation that makes it possible to represent a range of reproducible colors with accuracy of the present invention, is initially based on the combination of the three primary colors, namely yellow, magenta and cyan, to obtain a 100 color %; subsequently, obtain the same color at 100%, using the method of the present invention, but mixing exclusively two primary colors and the black color.
- the method for obtaining a tabulation that makes it possible to represent a range of reproducible colors with accuracy of the present invention, basically comprises the following steps:
- a total volume reference value is set, which can be 1, 10, 100, 1000, etc., preferably using 1000, and the percentages obtained are applied.
- each black volume is complemented with the white volume required to obtain 100% volume.
- the black and white volumes thus found correspond to mixing them with the equivalent gray colors for each primary color.
- the black volumes and the white volumes, corresponding to each primary color are grouped and summed so that the% Black volume and the corresponding White volume% are obtained to the equivalent gray color for mixing the three primary colors in equal volumes.
- step 4 The equal volumes of the three primary colors obtained in step 4 are added, and they are multiplied by the% Black volume and% White volume obtained in the previous step, to obtain the equivalent gray volume correspondent .
- the white volume is subtracted from the equivalent gray, so that the volumes of the mixture from the previous step are reduced to two primary colors and black.
- the total volume of the mixture is obtained and the percentage of each color in the same is obtained, thus defining the amounts present of the 2 primary colors and the black color in the mixture.
- the volume values thus obtained correspond to 100% color of the selection of the color tones of the three primary colors of step (1), not including the white color volume.
- the method of the present invention is applied to different initial combinations of the three primary colors Yellow (A), Magenta (M) and Cyan (C), reducing in the end the combination of said primary colors, to a combination of two primary colors and Black color (N), according to the following: COMBINATION COMBINATION
- Table 1 shows an example of the different tabulations obtained following the procedure described above, using the three primary colors (A + M + C) of the first combination, reducing in the end the combination of colors to two primary colors and black ( A + M + N).
- Table 1 shows an example of the different tabulations obtained following the procedure described above, using the three primary colors (A + M + C) of the first combination, reducing in the end the combination of colors to two primary colors and black ( A + M + N).
- the values obtained with the process of the present invention are shown, indicating the values obtained at 90% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 80% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 70% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 60% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 50% of the color tone 15 primary primary, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 40% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 30% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 20% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the values obtained with the process of the present invention are shown, indicating the values obtained at 10% of the primary primary color tone, also indicating the values obtained for the other primary color, as well as for the black color.
- the matrix catalog or color chart is prepared, which comprises ten rows and ten columns of rectangles, as shown in the catalog attached as an appendix and accompanying the Present detailed description.
- the rows are identified from top to bottom with the letters A, B, C, D, E, F, G, H, I and J respectively; the columns are identified from left to right with the numbers 100, 90, 80, 70, 60, 50, 40, 30, 20 and 10 respectively; And, the colors are sorted according to the following sequence:
- RED COLORS (YELLOW, MAGENTA AND BLACK) Yellowish Reds (Pages 1 to 10). In the first column of pages 1 to 10, rectangles of 100 colors are shown at 100% yellow tone (10 per page and per column).
- Each column corresponds to a different magenta color tone, namely: 90% tone, 80% tone, 60% tone, 50% tone, 40% tone, 30% tone, 20% tone and 10 % tone respectively.
- GREEN COLORS (YELLOW, CYAN AND BLACK) Yellowish Greens (Pages 21 to 30). In the first column of pages 21 to 30, rectangles of 100 colors are shown at 100% yellow tone (10 colors per page and per column).
- rectangles of 900 are shown 17 color tones (90 color tones per page and 10 per column).
- Each column corresponds to a different yellow color tone, namely: 90% tone, 80% tone, 60% tone, 50% tone, 40% tone, 30% tone, 20% tone and 10 % tone respectively.
- Cyanous Greens (Pages 31 to 40). In the first column of these pages 31 to 40, rectangles of 100 colors are shown at 100% cyan color tone (10 colors per page and per column). From the second column to the tenth column of said pages 31 to 40, rectangles of 900 shades of color (90 shades of color per page and 10 per column) are shown. Each column corresponds to a different cyan color tone, namely: 90% tone, 80% tone, 60% tone, 50% tone, 40% tone, 30% tone, 20% tone and 10 % tone respectively.
- VIOLET COLORS (MAGENTA, Cyan and Black) Magento Violets (Pages 41 to 50).
- rectangles of 100 colors are shown at 100% magenta color tone (10 colors per page and per column).
- the present invention is distinguished by being of a simple, practical and economical application, in addition to being of great simplicity and ease in handling, since for the first time it has been possible to obtain a sample of colors that follow a pattern Exactly and mathematically defined, using a method that basically comprises obtaining the required color tone by applying a color volume, calculated according to the mathematical expression (I).
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Facsimile Image Signal Circuits (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Image Processing (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU61228/98A AU6122898A (en) | 1997-02-28 | 1998-02-27 | Method for obtaining a tabulation to display a range of colours which can be reproduced with accuracy |
| US09/380,235 US6217337B1 (en) | 1997-02-28 | 1998-02-27 | Method for obtaining a tabulation to display a range of colors which can be reproduced with accuracy |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX971593 | 1997-02-28 | ||
| MXPA/A/1997/001593A MXPA97001593A (es) | 1997-02-28 | Metodo para la obtencion de una tabulacion que permite representar una gama de colores reproducibles con exactitud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998038044A2 true WO1998038044A2 (es) | 1998-09-03 |
| WO1998038044A3 WO1998038044A3 (es) | 1998-11-05 |
Family
ID=19744962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MX1998/000008 Ceased WO1998038044A2 (es) | 1997-02-28 | 1998-02-27 | Metodo para la obtencion de una tabulacion que permite representar una gama de colores reproducibles con exactitud |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6217337B1 (es) |
| AU (1) | AU6122898A (es) |
| WO (1) | WO1998038044A2 (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074955A1 (es) * | 1999-06-04 | 2000-12-14 | Universidad Complutense De Madrid | Procedimiento de reintegracion cromatica de obras de arte basado en la utilizacion de tablas o cartas cromaticas como sistema de referencia cromatico |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1900140A (en) * | 1929-03-09 | 1933-03-07 | Technicolor | Method of imbibition printing with pure primary colors and product |
| GB506581A (en) * | 1937-08-28 | 1941-05-30 | Philip Sidney Hillard Henry | Improvements in photographic and photomechanical colour printing |
| GB1095814A (en) * | 1965-05-26 | 1967-12-20 | Formica Int | Improvements in colour printing |
| DE2233165C3 (de) * | 1972-07-06 | 1981-11-26 | Druckfarbenfabrik Gebr.Schmidt GmbH, 6000 Frankfurt | Druckfarbenkombination zum Herstellen von Mehrfarbendrucken |
| DE3109190C2 (de) * | 1981-03-11 | 1985-07-11 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur Reproduktion farbiger Vorlagen im Vierfarbendruck unter Farbrücknahme |
| EP0091501B1 (de) * | 1982-04-10 | 1985-02-20 | DR.-ING. RUDOLF HELL GmbH | Vierfarbendruckverfahren mit tonwertabhängiger Farbrücknahme |
| BR6400152U (pt) * | 1984-02-01 | 1985-09-10 | George Mazuza | Uso de maxima remocao das cores primarias subtrativas na impressao de quadricromia por selecao de cores |
| JPH01228376A (ja) * | 1988-03-09 | 1989-09-12 | Minolta Camera Co Ltd | 階調表現方法 |
| GB2258427B (en) * | 1991-06-06 | 1995-04-12 | Aldine Design Services Ltd | Method for specifying colours for colour printing |
| US5305119A (en) * | 1992-10-01 | 1994-04-19 | Xerox Corporation | Color printer calibration architecture |
| US5420987A (en) | 1993-07-19 | 1995-05-30 | 3 Com Corporation | Method and apparatus for configuring a selected adapter unit on a common bus in the presence of other adapter units |
| WO1995027923A1 (de) * | 1994-04-09 | 1995-10-19 | Lucien Frisch | Verfahren zur farbseparation |
-
1998
- 1998-02-27 WO PCT/MX1998/000008 patent/WO1998038044A2/es not_active Ceased
- 1998-02-27 AU AU61228/98A patent/AU6122898A/en not_active Abandoned
- 1998-02-27 US US09/380,235 patent/US6217337B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074955A1 (es) * | 1999-06-04 | 2000-12-14 | Universidad Complutense De Madrid | Procedimiento de reintegracion cromatica de obras de arte basado en la utilizacion de tablas o cartas cromaticas como sistema de referencia cromatico |
| ES2153785A1 (es) * | 1999-06-04 | 2001-03-01 | Univ Madrid Complutense | Procedimiento de reintegracion cromatica de obras de arte basado en la utilizacion de tablas o cartas cromaticas como sistema de referencia cromatico. |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9701593A (es) | 1998-08-30 |
| AU6122898A (en) | 1998-09-18 |
| WO1998038044A3 (es) | 1998-11-05 |
| US6217337B1 (en) | 2001-04-17 |
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