JPS60250381A - Preparation of color sample list - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention relates to a method for creating a color sample table that allows color samples to be easily produced by printing, and particularly to a color sample table that allows arbitrary and easy determination of color combinations. Regarding the creation method.

``Prior art'' Color schemes, especially the most suitable color combination for a product, are important factors that not only increase the purchasing power of a product but also stimulate a person's sensitivity and satisfaction. A color sample table known as the Munsell system is generally used as a color sample ledger used when performing combinations.

The Munsell system uses 10 selected methods for color perception on the surface of objects.
A cylindrical coordinate system was formed based on the hue wheel by further increasing the hue to a total of 100 hues, and the vertical axis Z of the cylindrical coordinate system was divided into 11 stages from 0 (white) to 10 (black). A color sample corresponding to each grid divided according to the three attributes of these colors is formed, with brightness divisions and saturation divisions graduated at equal intervals starting from achromatic color 0 on the horizontal axis γ. are pasted to form a cubic color sample ledger, and all chromatic colors of the same hue are placed on a half plane with deviation angle θ = const, and on a horizontal cylindrical surface with horizontal axis γ = const. is constructed so that there are chromatic colors of each hue with the same saturation.

``Problem to be solved by the invention'' a) However, in this Munsell system, a color sample ledger is created based on the color female cube, so even if it is cut horizontally, vertically, or diagonally, The color sample table that appears on the cut surface is a matrix of color samples organized according to color attributes.

Therefore, such a structured color sample table is convenient for finding out which Munsell symbol a known color corresponds to, but when selecting a color or color scheme, it is useful to Since the color samples adjacent to the sample are all similar colors organized according to predetermined color attributes, it is difficult to select a color due to the influence of the surrounding color samples, making it extremely difficult to select the optimal color or color scheme. It is.

h) Also, since the color samples used in the Munsell system are determined based on the three attributes of the color, they cannot be produced by mass production methods such as printing, and they must be prepared by mixing each type of paint in a predetermined distribution ratio. Because each color is individually handcrafted by spraying it onto a designated sample paper to reveal the desired color,
Creating such a color sample ledger requires a great deal of effort and skill.

Therefore, such color sample registers are necessarily extremely expensive;
Even designers and other professionals had the problem of not having easy access to it. For this reason, in various industries closely related to color, it has been desired for a long time to realize a color sample table that can be inexpensively, objectively, and easily combined.

[Means for Solving the Problems] The present invention is a technical means for solving the problems of the prior art. A method for creating a color sample table, characterized in that arbitrary color samples are extracted from among various color samples formed by a combination of color samples selected at random based on the conditions, and arranged in a matrix. propose.

Note that selecting at random based on the predetermined conditions does not mean completely random selection, nor is it a completely systematic selection like the Munsell system. This refers to randomly selecting a color sample from among a collection of color samples grouped so that the sample group has a certain color harmonic relationship.

However, completely random selection not only creates an infinitely large number of color sample tables, but also makes it more inconvenient to create a color scheme if the color sample table contains a mixture of inharmonious and harmonious color samples. This is because there are cases where

Note that the predetermined condition does not necessarily include only colors that have a harmonious relationship; depending on the specific industry, it may be possible to select colors that are preferable by collecting only inharmonious colors; Defined arbitrarily by the industry using the sample.

``Effect'' According to such technical means, color samples are not created based on the three attributes of color, but instead use the three primary printing colors of cyan, magenta, and yellow, or the four primary colors with the addition of color. Using a random number table or a computer incorporating a random number table, randomly select each printing plate in which the area ratio of halftone dots of each printing plate used for primary color overlay printing is changed by a predetermined proportion, and Since a color sample is created by a combination of the above, it is naturally possible to easily and accurately create a desired color sample table by printing, for example, offset printing.

Therefore, such a color sample table can be mass-produced, so it is inexpensive and extremely beneficial to society because the same color sample table can be produced in large quantities. Since the color samples extracted from these color sample tables already have a known halftone dot area for printing plates of three or four primary colors, it is easy to easily reproduce the same color (by printing). For example, industries that carry out
It is possible to provide highly desirable color sample charts for packaging containers, posters and calendars, home interiors, toys, clothing, etc.

The color sample table is not a color sample group organized so that adjacent color samples sequentially change at a predetermined scale interval like the Munsell system, but a color sample table in which the color sample group has a certain harmonic relationship, for example. Since the color samples are randomly selected and arranged from among the color samples based on predetermined conditions such as By hiding unnecessary color sample portions in the color sample table using a color scheme mask having 0 parts, desired color sample combinations can be easily and clearly contrasted, and furthermore, the open color can be easily and clearly contrasted. Since all of the samples are color samples that are randomly selected according to predetermined conditions such as similar relationships and complementary color relationships, by arbitrarily changing the opening portions of the color samples using the color scheme mask, a large number of color samples can be created. It is extremely suitable as a color scheme table as it allows you to experiment with a wide variety of color combinations.

Note that there are laws that can be determined quantitatively, such as the Moon-Spencer theory, to determine the colors that have the harmonic relationship, and if these laws are used, it is also possible to input the predetermined conditions into a computer. It becomes possible to automatically process the selection of a color sample group formed by a combination of printing and plate making using a computer.

Furthermore, by setting the area ratio of the halftone dots of each printing plate in 1% increments, it is possible to correspond to the color samples of the Munsell system, and it is also possible to cover all the practically necessary color samples.

"Example" A method for creating a color sample table according to an example of the present invention will be described below according to its creation procedure.

When creating a color sample using the three primary colors for printing, cyan, magenta, and yellow, if the area ratio of the halftone dots of the printing plate for each of the above colors is arbitrarily selected in the range of 0 to 10 oz in 1% increments. , (100) Three color samples can be created. Further, if the area ratio of the halftone dots of the printing plate of the four primary colors, which is the three primary colors plus ink, is arbitrarily selected under the above conditions, it is possible to create four (100) color samples.

Therefore, these color samples are selected under predetermined conditions, such as color samples that are the same, similar, or symmetrical (complementary) to 10 arbitrarily selected hues (according to the Moon-Spencer theory, all of these are color samples). ) are grouped, a desired number (for example, 140) of color samples are randomly selected from the grouped color samples, and each printing plate-making network corresponding to the color samples is selected. Create a point area ratio table.

Table 1 is a printing and plate making halftone dot area ratio table for color samples that have a similar relationship to the red base color among the halftone dot area ratio tables for each of the selected color samples. Shows percentage display.

Using a printing plate having the area ratio of halftone dots based on the above table, various matrix-like color sample tables A as shown in Fig. 1 were printed and created. This is then bound into a book and produced as a color sample ledger. Note that offset printing is preferred as the printing method, but is not necessarily limited to offset printing.

Also, color sample 1 arranged in matrix color sample table A
The layout standard for a... may be determined as appropriate so that an effective color combination can be made depending on the relationship with the opening 2a... of the color scheme mask B, which will be described later. - or in the case of color samples 1a having a similar relationship, it is sufficient to arrange them randomly without setting any particular layout standards.On the other hand, when using the color samples 1a having a symmetrical relationship, one of the arbitrary color sample grids can be placed. The color samples 1b may be arranged in a symmetrical manner in the lower and left color sample grids.

Furthermore, the reason why the area ratio of the halftone dots of each printing plate is set in 1% increments is that by making them in 1% increments, it can be made to correspond to the Munsell system color sample, and can be used in common with known color schemes. This is because not only is it possible to cover all the color samples that are practically necessary in most industries that require color samples.

On the other hand, if the area ratio of the halftone dots is set smaller than 1%, too many color sample tables A will be required, which again poses a practical problem.

In this example, color sample table A using four side color printing plates was presented, but in particular, color sample table 1a and using black primary color were presented.
In the case of . In such a case, the color sample table A may be created using the three primary colors excluding the black primary color.

2A and 2B show a color scheme mask B used for masking the color sample table A, and in FIG. 2A, openings 2a are formed so that a plurality of adjacent color sample grids are opened. The opening method is to cut off the relationship with the surrounding color,
In order to confirm a single color, a single color sample 1a opens the opening 2a, and in order to confirm the color relationship with any color sample 1a..., an adjacent color sample grid is opened. Two or three openings 2b, 2c in a row or column so as to be opened.
Or four or eight openings 2d around the perimeter, and pentagonal openings 2 diagonally so that the white lines between the color sample grids are not visible.
e may be provided arbitrarily and selectively. Color sample 1a
Since the openings 2a... are arranged randomly, these openings 2a... do not necessarily have to be adjacent to each other, but if you want to contrast the color samples 1a... by separating them, you can open them freely. You may. Furthermore, although white is generally preferred as the color of the color scheme mask B, it is not necessarily necessary to use white when confirming a specific color scheme.

Fig. 2B shows a color scheme mask B in which the area of the openings 3a of the color sample grid is changed, such as openings 3b with a smaller area than the central opening 3a, and openings 3c. A plurality of color sample grids are perforated so as to be open. Note that the shape of the openings 3a does not necessarily have to be square, and may be circular, triangular, or slit-shaped.

Such a color scheme mask B is preferable for determining color combinations in the symmetrical color sample table A.

The color scheme mask B makes the color scheme relationship of the desired color sample 1a easily and clearly by bringing the surface into contact with the color sample table and hiding the unnecessary part of the color sample 1a. You can also select the color sample 1a...
By arbitrarily changing the openings 2a, 3a, . . . , a wide variety of color combinations can be created by trial and error.

"Effects of the Invention" As described above, according to the present invention, a color sample table with reproducibility can be created by printing, and the halftone dot area ratio of the printing plate can be easily determined from the desired color sample. , it is possible to provide a product with the exact same color as the color sample.

Further, by combining the #coloring sample table and the coloring mask, color combinations can be performed objectively and easily.

Therefore, by using such a color sample table and color scheme mask, in addition to printed matter such as posters, it can be used in all fields such as home interiors, toys, clothing, etc., and eliminates individual variations and skill. A unified color scheme is possible without the need for

Further, the present invention is extremely convenient when considering images of products with various color scheme areas by appropriately selecting the area ratio and position of the openings of the color scheme mask. It has the same effect as the above.

[Brief explanation of the drawing]

1 to 2B are embodiments of the present invention, and the first
The figure is a surface view of the color sample table, and FIGS. 2A and 2B are surface views of a coloring mask used for masking the color sample table.

Claims (1)

[Claims] 1) #! Randomly select printing plates of three or four primary colors in which the area ratio of one point is changed proportionally and quantitatively based on predetermined conditions, and select any color sample from among the various color samples formed by combining them. 2) A color sample table creation method characterized by extracting color samples and arranging them in a matrix.2) A method of creating a color sample table, characterized in that the area ratio of halftone dots of each printing plate is set in 1% increments. 3) A patent characterized in that the predetermined condition is that an arbitrary color sample arranged in a matrix and other adjacent color samples are in a harmonious relationship in terms of color. Method for creating a color sample table as set forth in claim 1