KR20110007265A - How to make printed materials visible on both sides by printing on one side - Google Patents

Abstract

PURPOSE: A method for fabricating printing materials which are indicated on the both sides through one-side printing operation is provided to enable the both-sides display through one-side printing operation by dissolving and printing a white value existing on an image. CONSTITUTION: A black value existing on an image is inversed by using the complementary color relation. The changed black value is used as a white value to be added four original colors which are cyan, magenta, yellow and black colors. The white value is printed in white or white-series color ink.

Description

Production method of printed matter visible on both sides by printing on one side {omitted}

In general, the method of printing an image recognizes the values of four primary colors of cyan, magenta, yellow, black, and color in a computer image program such as Photoshop, and sends the data to a printer to print on white or transparent print paper, After printing the film with a film printer, it is plated and printed. This is generally called 4-degree primary color printing, and in order to manufacture printed matters on both sides, it is printed on both sides of the front and back when printing on white paper or printed on transparent paper. However, when printing on both sides of white paper, the printing cost is high, and when printing on transparent film, there is no white color, resulting in an indistinct print.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the object of the present invention is to make both sides visible by printing on one side by printing a white value existing in an actual image by printing white color on the entire surface of the printed matter.

Conventionally, four primary colors such as cyan, magenta, yellow, and black are separated and printed (printed) on both sides of printing paper such as white paper in order to view images on both sides of the printed matter. Instead, the white values of the actual images are decomposed and printed on transparent films in five colors: cyan, magenta, yellow, black, and white.

The present invention is printed on one side of both sides, that is, one side is shown in Figure 2 (a) and the other side of Figure 2 (b) is, of course, the white color is not actually applied to the front portion Since only the print is printed, the permeability of the print is quite excellent.

In general, when printing on white paper, the color value of the image is printed by primary color separation of cyan, magenta, yellow, and black. In other words, if you want to print point 1 in Fig. 2, the color value of the point is Cyan 6 Magenta 34, Yellow 34, Black 0, Cyan, Magenta, Yellow, and Black are output in the form of dots in the form of (a) of Figure 1. However, the present invention is transparent film or white. In other color papers, for example, silver paper, etc., it is printed on cyan 6, magenta 34, yellow 34, black 0, white 100, and in the form of (b) in the figure 1, cyan, magenta, yellow, black, white 5 The color is output in the form of points.

In addition, if you want to print the point 2 in Figure 2, it is generally printed in cyan 73, magenta 76, yellow 50, black 53, but the present invention is printed in cyan 73, magenta 76, yellow 50, black 50, white 47 In other words, it adds a white color to the usual method, and the value is decomposed and outputted as (100-black value), which utilizes that the white value is complementary to the black value. Values can also be extracted. The present invention also reveals that it is important to print in five colors using this principle, which is also possible with 100-black value + (-) alpha value when decomposing the white color.

In the case of ordinary printed matter

In the case of printed materials that want to show the same image on both sides, it is possible to reduce the unit cost of printing costs, and in the case of a window advertising printed material such as a convenience store, the present invention can see the advertisement image from the outside, as well as can be seen from the inside, In the dark and bright night, the present invention partially processes the white color, so the transmittance is high, so even in the dark, light in the room penetrates the present invention.

When printing on printing paper such as silver, only one side is visible, but when printing by a general printing method, white parts appear in silver and a clean image cannot be generated. You can create a clear image, and it's also a great way to showcase things inside.

When the present invention is applied to a lighted advertisement, in general, when the light from the side of the printed light is weak, the light guide plate is used in most cases, but the present invention has the advantage that the printed material comes out brightly without the need of the light guide plate. .

.

Claims (3)

When printing or printing an image, use the complementary color relationship to invert the K (black) value present in the image, and then reverse the black (K) value as the W (white) value. How to add white, yellow, and black to white color or white-based color ink When printing or printing an image using an image output program such as Photoshop, the image is inverted in CMYK mode, GRAY mode, or RGB mode, and the black value of the image is set to W (white) value. How to add white values to four primary colors, cyan, magenta, yellow, and black, and print or print the white values with ink of white or white color. How to extract or print white value from color value of any image with 100-black value + (-) alpha and add it to 4 primary colors of color or print or print with alpha value of 0-50

Images