JPH02117877A - Printing method - Google Patents

Abstract

PURPOSE:To enable effective multicolor printing without any spoiling of colors and eliminate the need to use an exclusive paper for advertisement by a method wherein an area in which a photograph and/or an advertisement is to be printed is pretreated with a whitish ink, and then multicolor printing is conducted. CONSTITUTION:At the time of printing news 2 on a news printing paper 1 and also printing a photograph 3 and advertisements 4 in multicolor on the paper 1, the news 2 is printed on the paper 1 directly, but the photograph 3 and the advertisements 4 are printed after treating the relevant areas of the paper 1 with a light-colored (whitish) ink to make the areas have the appearance of a white paper. In this condition, multicolor printing is conducted in the photograph and advertisement printing areas. Therefore, though the printing is conducted on an ordinary news printing paper, news parts can be printed by ordinary printing using a black ink, while the photograph and advertisement parts can be printed to appear as if an expensive advertisement paper were used, and without spoiling the colorful feeling of multicolor printing.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a printing method suitable for use in multicolor printing on paper, particularly low-quality paper such as newspapers and weekly magazines.

(b) Prior Art In general, there are various types of Western paper such as newsprint, printing paper, writing paper, drawing paper, and packaging paper.

The newsprint is made from ground wood pulp (ground pulp) or chemical crushed ice pulp (chemi ground pulp), mixed with about 20% sulfite pulp (sulfide pulp), so that it can be easily printed as a newspaper. and the cost is also reduced.

(Problems to be Solved by the Invention) However, when printing on the newsprint, especially when performing multicolor printing, ink is directly placed on a gray paper that is not completely white. Due to the interference of gray colors, the original colors, especially light colors, are lost, and for example, in advertising photographs, the original tones cannot be fully expressed, resulting in a problem that the advertising effect is halved.

In addition, in the case of newspapers, in order to prevent the advertising effect from decreasing, the advertising paper is printed on high-quality advertising paper that is different from the newsprint mentioned above, and the advertising paper is folded into the newsprint when it is sold. Although advertising paper is completely white and can print clearly on light colors, the cost is high because the paper itself is expensive and the work of folding it into newspapers is time-consuming.

Therefore, the present invention simply adds a simple method.

It is an object of the present invention to provide a printing method that solves the above-mentioned problems by printing on newspaper but with the same color tone as when printing on advertising paper.

(d) Means for Solving the Problems The present invention has been made in view of the above-mentioned circumstances. For example, as shown in FIG.
), a photo (3), an advertisement (4), etc., in which the area where the photo (3) and/or advertisement (4) is to be printed is treated with white ink in advance. Ok,
The present invention provides a printing method in which multicolor printing is performed from above the white color.

(e) Effect Therefore, article (2) is printed normally on the original newsprint without any problems, and photos (3) and advertisements (4) are printed as usual.
) are printed on areas that have been treated with a white color, so the colors are not lost and are printed as if they were printed on special advertising paper.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, when printing an article 2, a multicolor photo 3, and an advertisement 4 on newsprint 1, the article 2 is printed on the newsprint as is, but the photo 3 and advertisement 4 are In some cases, prior to printing, the photo and advertisement printing portions are made into white paper using pale white (white-based) ink. In this state, multicolor printing is performed on the photograph and advertisement printing portions.

Therefore, even though it is printed on regular newsprint, the article section can be printed normally using black ink, while the photo and advertisement sections can be printed in multiple colors without losing the color feel. It is possible to print as if using expensive advertising paper.

Note that if the photo or advertisement to be printed is not multicolor printing but so-called black and white printing, it is of course possible to print it in the same manner as Article 1 using the conventional method instead of the process described above.

(G) As described in detail, according to the present invention, the photograph (3) and/or
Alternatively, the area where the advertisement (4) is to be printed is treated with white ink in advance, and multicolor printing is performed on top of the white ink, so the same newsprint (1) is used. However, article (2) can be printed normally.

In addition, for photos (3) and advertisements (4), it is possible to perform effective multi-color printing without losing color, and there is no need to use special expensive advertising paper, and it can be printed separately from newsprint. There is no need to perform troublesome work such as inserting advertisements into the newspaper, thereby simplifying the work process up to newspaper sales and reducing costs.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the entire newsprint according to the present invention. Patent Hatake Ganto Sato Setsube Sato 9 Hiroshi 1...Newspaper, 2...Article, 3...Photo, 4.
··advertisement.

Claims (1)

[Claims] (1) A printing method for printing articles, photographs, advertisements, etc. on newsprint, in which the areas where the photographs and/or advertisements are to be printed are treated with white ink in advance, and the white ink is applied to the area where the photographs and/or advertisements are printed. A printing method in which multicolor printing is performed from above.