JPS6158787A - Printed matter - Google Patents

Abstract

PURPOSE:To obtain printed matter which appears to be three-dimensionally, if a glasses like instrument is used, in the same way as conventional expression by a characteristic color phase, by applying the overlapping printing of a process color to a place desired to be looked three-dimensionally. CONSTITUTION:A first picture pattern 11 and a second picture pattern 12 are printed on a printing material so as to be shifted to each other. For example, the first picture pattern 11 is printed so as to obtain a blue color phase and the second picture pattern 12 is printed by a red color phase. The red color phase is obtained, for example, by the overlapping printing of a magneta plate with a dot area ratio of about 5-80% and a yellow plate with a dot area ratio of about 5-60%. The blue color phase is obtained, for example, by the overlapping of a cyan plate with a dot area ratio of about 5-70% and a yellow plate with a dot area ratio of about 5-40%. Of course, in this example, the dot area ratio of the yellow plate is preliminarily enhanced in the overlapped part of the red picture pattern and the blue picture pattern and printing can be performed by one plate.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement in a printed matter whose pattern appears three-dimensional when viewed with two different color filters placed on both eyes. The invention relates to printed matter that can be expressed using ordinary process colors of cyan, magenta, yellow, and black without using specially adjusted special colors (so-called "spot colors").

BACKGROUND OF THE INVENTION Conventionally, two identical patterns obtained by changing the photographing position, etc., are used to create a blue-based first pattern and a red-based second pattern, as shown in Figure 1. A glasses-like device is printed with shifted positions and has a filter 3 of the same hue as the first pattern (for example, blue color) on the right side and a filter q of the same hue as the second pattern (for example, red color) on the left side. There are known printed materials that are made so that the pattern appears to be floating or sinking at the position shown in 5, depending on the image used.

However, in this type of printed matter, the hue of the film-like material used for the filter is virtually fixed to red and blue, and a type of pattern (for example, the one shown in Figure 1) is created using ink with a hue that matches the filter. 1 and 2), but the hue of the ink does not match the magenta and cyan in the so-called process colors (cyan, magenta, yellow, and plaque).For this reason, in addition to process colors, There is the inconvenience of using a specially adjusted "spot feature".

Furthermore, this kind of three-dimensional printed material requires a separate eyeglass-like device, so for people who do not have a glasses-like device, it is simply a matter of seeing the red and blue patterns printed out of sync. In this case, the appearance is not desirable.

Recently, ordinary printing, especially color printing, has been used in combination, and printing that appears three-dimensional when using a glasses-like device is being applied to some parts. However, when using regular printing together with printing that looks three-dimensional when using a glasses-like device, it is necessary to use a type of "spot color" and normal process color (
cyan, maze/red, yellow, and blank), which requires two additional colors compared to normal printing, which is time-consuming and requires large printing machines with a large number of printing units. There are disadvantages such as requiring

Problems to be Solved by the Invention Accordingly, the present invention solves the drawbacks of the prior art, and uses no "spot colors" but only regular process colors, and uses a conventional eyeglass-like instrument for viewing. The purpose is to provide printed materials that appear three-dimensional when viewed.

Means for Solving the Problems In the present invention, instead of using a single spot color ink such as red or blue to print areas that are desired to appear three-dimensional, "spot color" is printed by overprinting process colors. By expressing the hue of , it is possible to provide a printed matter that looks three-dimensional when viewed using a glasses-like device, as in the past.

FIG. 2 is a plan view of an embodiment of the present invention, and shows a printing substrate I
The first pattern ii and the λth pattern/co are printed and formed in the lower part of O, and the normal pattern is printed and formed in the upper part.

The printing substrate IO usually includes what is to be printed,
For example, paper, plastic film, metal foil, etc.
It may be a composite of these, or a plate-like one with a thickness of ~・, that is, the first pattern // is printed to have a blue hue, for example, and the second pattern 1 is printed in a red hue, for example.

An example of a red hue is obtained by overprinting a magenta plate with a halftone dot area ratio of S to go% and a yellow plate with a halftone dot area ratio of about j to 60%. For example, it can be obtained by overprinting a cyan plate with a dot area ratio of about S to 70% and a yellow plate with a dot area ratio of about r-qo%. Of course, in the overlapping areas of red and blue patterns, in this example, the yellow plate has a high dot area ratio in advance, and the yellow plate is not made into a λ plate, so only 7 plates are required. Engrave the book (no changes to the content).

In the above example, if we use the same red filter and blue filter as in the past and look at the printed matter through a pair of glasses with two blue filters on the right side and a red filter on the left side, we can see the difference in the first @. Similarly, the pattern appears to be floating, while the l/1 appears to be sinking.

As a blue filter, it absorbs light with a wavelength of approximately 1) 00n or more, and! ;Use a filter that transmits light with a wavelength of 00 nm or less, and as a red filter, approximately AO
Filters that absorb light with wavelengths below Onrn and transmit light with wavelengths above &00nm are used, but the wavelength that forms the boundary between absorption and transmission of these filters is the reflection of the first pattern and the second pattern. It can be determined as appropriate depending on the wavelength distribution C2 of the light.

The pattern /3 is a normal pattern that is not intended to look three-dimensional, and can be formed by printing using general process colors as appropriate.

Although the printed matter of the present invention can be produced by various printing methods, the key point in producing the printed matter lies in the photolithography process before the process of making a printing plate, that is, a printing plate.

To give an example, first, a first picture l/ and a second picture /co to give a three-dimensional appearance are printed on a printing base. This printing is conveniently carried out using, for example, an offset proofing press. At this time, the ink used to print the first pattern and the second pattern is a conventional "spot color" ink.

Further, if necessary, normal pictures may be printed side by side.

The printed matter is then used as a document and separated into T colors using a scanner or camera. For example, in the above example, the red color is Separate the ink colors into magenta and yellow versions.

It should be noted that ordinary patterns may be separated by color separately from this, or may be separated by color at the same time.

Alternatively, as described above, it is possible to use a scanner from the beginning without printing with "spot color" ink and creating an original for the scanner or camera. At this time, the halftone area ratio of each process color is determined in advance based on the highest density part of the original image to create the hue of the first pattern l/ and the second pattern l with process colors. Alternatively, it is preferable to use the positive or negative of the original image as an original, set the maximum halftone dot area ratio determined above as the maximum, output the image at a temperature corresponding to the density of the original image, expose the photographic film, and develop it.

Function/Effect The printed matter of the present invention can be produced by any of the above methods.
However, the first pattern and the second pattern, which are used to express a three-dimensional effect, are not formed by printing with "spot color" ink alone, but by printing similar hues with ordinary process color ink. Since it is formed by printing, the same three-dimensional effect can be obtained by placing two predetermined color filters on the left and right eyes with a spectacle-like device, etc., as in the past. Because it can be printed using (・), fewer types of ink are used, and the number of overprints is reduced, so there is less printing loss (
, It is easy to manage ink, and the printing machine used is a special one such as a 6-color printing machine, since it is sufficient to use a general-purpose q-color printing machine that prints only with normal process colors. There is an advantage that printing is possible very easily without the need for printing.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a conventional printed matter, and FIG. 2 is a plan view showing an embodiment of the present invention. ／・・・・・・・・・・・・Red pattern ko・・・・・・・・・Blue pattern J ・・・・・・・・・・・・Blue color filter...
・e・・・・l・Red filter S・・・・・・・・・
...3D pattern 10...Printing base//---...-----First pattern...1 tatami mat...
l-■Second pattern IJ・・・・・・・・・Normal pattern 1st figure 2nd figure hand Vt correction calligraphy (method) 1985
February 25th, Manabu Shiga, Commissioner of the Japan Patent Office Part 1, Indication of the case 1981 Patent Application No. 18151f] 2, Name of the invention in print 3, Person making the amendment Relationship with the case Patent applicant address Bancho Keihaku Name according to residence indication (289, ftdtW, ni 7. NIQ
(Representative: 4) and Mr. Washi, 4, Agent Address: 162 Address: No. 101-I, Ichigaya Kaga-cho, Shinjuku-ku, Tokyo Showa 6
January 9, 0 (Shipping date: January 29, 1985)
(2) As per the engraving and attachment of page 6 of the specification originally attached to the @ document (no change in content)

Claims (4)

[Claims] (1) The first color obtained by overprinting two or more colors selected from cyan, magenta, yellow, and black.
A first pattern consisting of colors, and a second pattern selected from each of the above colors.
A second color different from the first color obtained by overprinting more than one color.
A printed matter comprising a second pattern which is of a color and is provided offset from the first pattern. (2) The printed matter according to claim (1), wherein each color is cyan, magenta, and yellow. (3) Claim (1) or (2) which has a normal picture in addition to the two pictures, the first picture and the second picture.
2) Printed matter described in section 2). (4) The printed matter according to claim (3), wherein the normal picture pattern is provided by appropriately overprinting cyan, magenta, yellow, and black.