JP2836355B2 - Wavy pattern printed matter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wavy pattern using a moire pattern.

[0002]

2. Description of the Related Art Conventionally, fine pattern-shaped fine prints for imparting an appearance design effect and an identification function to printed matter have been performed.

[0003]

The creation of a fine print pattern in fine print printing requires a high degree of precision technology and skill from design design to printing, and requires a great amount of work time to complete. In need.

An object of the present invention is to obtain a print of a wavy line pattern which can be easily printed and approximates a print of a fine print by using a moiré pattern which is difficult to reproduce exactly the same pattern generated by superposition of fine line patterns.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a wave pattern in which a number of wavy lines are arranged at equal intervals at a desired pitch, and each wavy line is drawn with a step, and is coaxially arranged at predetermined intervals. And a parabolic pattern.

[0006] Further, according to the present invention, the parabolic pattern is preferably
A plurality of wavy patterns arranged at a desired pitch at equal intervals, and a plurality of wavy patterns arranged at a desired pitch at equal intervals and approximately ± with respect to a tangent line near a wavy inflection point of the wavy pattern.
Corresponds to a plain net pattern with a dot area ratio of about 55% or less or a parabolic moiré pattern generated by superposition with an orthogonal grid line pattern with a grid line area rate of 55% or less, aligned at an angle of 7.5 ° or more. It is a wavy pattern printed matter which is a pattern to be performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The printed wavy pattern of the present invention will be described in detail with reference to examples. FIG. 1 is a plan view showing a printed material A of a wavy line according to the present invention, which is a wavy line pattern a constituted by arranging a plurality of wavy lines a1 at equal intervals at a predetermined interval La, and a contour portion of each wavy line a1. Are formed along the vertical axis, and each of the steps g formed on each of the wavy lines a1 has a central axis S when the central axis of the parabola is S. Are arranged along a plurality of parabolic lines p1, and a parabolic pattern P is drawn by an aggregate of the plurality of parabolic lines p1. The interval La is, for example, 0.5
A range of about mm to 2.0 mm is suitable, but not limited thereto.

In the printed matter A of the wavy line pattern of the present invention, a number of wavy lines b1 shown in FIG.
a = Lb) and 55%
A plain mesh pattern having the following halftone dot area ratio, for example, a plain mesh pattern having an area ratio of 50% in which halftone dots c2 (opaque areas) and white portions c3 (transparent areas) are arranged along a straight line c1 as shown in FIG. A parabolic pattern P corresponding to a parabolic moiré pattern obtained by superimposing C (interval Lc of c1) is provided. Note that the relationship between the interval Lb and the interval Lc is Lb = k × Lc, where k = 1 to 6 is appropriate. Also, the ratio of the width of the black line to the white line of the wavy line pattern B is appropriately 1: 1 but is not necessarily limited.

This parabolic pattern P (see FIG. 1)
A collection of a plurality of parabolas p1 regularly arranged in the longitudinal direction at predetermined intervals on the axis S with S as a parabola axis, and has a parabolic pattern shape. In addition,
The direction of the axis S of the parabolic pattern P corresponding to the moire pattern generated by superimposing the wavy line pattern B and the straight line pattern C is located in a direction orthogonal to the direction of the straight line c1 of the straight line pattern C.

The parabolic pattern P is composed of the wavy line pattern B shown in FIG. 2 and the orthogonal lattice line pattern D shown in FIG. 4 (a straight line d1 arranged at equal intervals Ld and a straight line d2 arranged at equal intervals Ld). A similar parabolic moiré pattern can be obtained by superimposing (orthogonal lattice lines), and a parabolic pattern P corresponding to this moiré pattern may be used. Note that the relationship between the interval Lb and the interval Ld is Lb = k × Ld
It is appropriate that k = 1 to about 6. The ratio of the black line (opaque region) to the white line (transparent region) of the orthogonal lattice line pattern D is preferably 0.5 or less.
It is not limited to this. As the orthogonal grid line pattern D, a screen (shape) made of resin or metal such as transparent or translucent or opaque nylon used for screen printing is formed in an orthogonal mesh (for example, the number of lines is 15).
(0 line / inch) can be used as an original plate for plate making, and the wire diameter of the screen is suitably about 1/2 to 1/3 of the screen pitch.

FIG. 5 is an enlarged view (schematic view) of each wavy line a1 of the wavy line pattern a in the printed wavy line pattern A of the present invention and each parabola p1 of the parabolic pattern P drawn thereon. It is drawn by providing a step g along a portion corresponding to a parabolic moiré pattern in a direction intersecting with the wavy line a1.

The step portion g is formed by exposing the wavy line pattern B and the plain net pattern C to a printing pattern at the plate making stage of a printing plate used for printing the wavy line pattern printed matter of the present invention described later. .

As shown in FIG. 6, in the printed wavy pattern A of the present invention, each wavy line a1 on which the actual parabolic pattern P is drawn is provided with a plain net pattern C and a halftone dot region f formed by printing ink. The stepped portion g, which is constituted by a halftone pattern formed of a white area e and a parabolic pattern P, is a white area without the halftone area f, and is formed by a gentle curve of the wavy pattern B. This is obtained by the resulting inclined portion and the linearly blank portion of the plain net pattern C.

The mesh pattern formed on this wavy line a1 is
At the stage of plate making printing of the wavy pattern printed matter of the present invention, pattern exposure is performed on the wavy pattern B by overprinting the printing plate at the plate making stage (positive wavy pattern B
, And then the pattern exposure of the positive plain mesh pattern C is performed.
Changes in accordance with the dot area ratio of
%, A halftone pattern equivalent to 55% is obtained for each wavy line a1, and a halftone pattern equivalent to 50% is obtained for each wavy line a1 if the plain net pattern C has a dot area ratio of 50%. When the plain net pattern C has a dot area ratio of 40%, a halftone pattern equivalent to 40% is obtained for each wavy line a1.

Next, the manufacturing process of the printed wavy pattern A of the present invention will be described below with reference to FIG. As shown in FIG. 7 (a), a wavy line pattern B (a positive photographic original plate having wavy lines b1) is superposed on a printing plate 1 having a positive type photosensitive agent layer 2 on its surface, and irradiated with ultraviolet light L. Expose. The hatched portion of the photosensitive agent layer 2 is an exposed portion 3 that has been photolyzed (solubilized in an alkaline aqueous solution) by pattern exposure, and 4 is an unexposed portion.

FIG. 7B shows a printing plate 1 having an exposed portion 3 and an unexposed portion 4 obtained by pattern exposure of a wavy line pattern B.

Subsequently, as shown in FIG. 7C, a plain mesh pattern C (for example, a positive photographic original of a plain mesh pattern in which halftone dots c2 are arranged at an area ratio of 50%) on the pattern-exposed printing plate 1. ) Are superposed, and pattern exposure is performed by irradiating ultraviolet light L.

As a result, as shown in FIG. 7 (d), the unexposed portion 4 and the
The double exposure unit 6 is obtained by the wavy line pattern B and the plain net pattern C.

Subsequently, portions exposed to light by developing with a developing solution (eg, an alkaline aqueous solution) (exposed portions 3, 5,
By dissolving and removing 6) and performing a washing and drying process, a plate making pattern E by the unexposed portion 4 is obtained on the printing plate 1 as shown in FIG.

By using this printing plate 1 to print on a printing medium such as a desired printing sheet, FIGS.
(1) is obtained.

[0021]

The printed material A of the wavy line pattern according to the present invention is drawn in a wavy line pattern a in which a number of wavy lines a1 are arranged at equal intervals at a desired pitch, and each wavy line a1 is drawn with a stepped portion g and coaxially arranged at a predetermined interval. Multiple parabola p1
Since a parabolic pattern P composed of a parabolic pattern P is formed, it is difficult to imitate a parabolic pattern P having the same shape by printing unless the parabolic pattern p1 drawn with a step g on the fine wavy line a1 is printed on the same printing plate. .

Further, the printed matter A of the wavy line pattern of the present invention is composed of a number of wavy line patterns B arranged at equal intervals at a desired pitch.
A large number of lines are arranged at a desired pitch at equal intervals, and a tangent line near the wavy inflection point of the wavy line pattern is approximately ±
Since it can be obtained by plate-making based on a moire pattern obtained by superimposing each other with a plain mesh pattern C or an orthogonal grid line pattern D which is aligned at an angle of 7.5 ° or more. , A parabolic pattern P having various inclinations (inclination of the parabolic axis S) and a spread can be obtained.

[0023]

According to the present invention, the stencil pattern printed matter of the present invention can perform plate making printing in a short time without the need of high precision technology and skill from design design to printing in the formation of fine print in fine print. It is possible to obtain a printable wavy line pattern print similar to a fine print using a moiré pattern in which it is difficult to reproduce the exact same pattern generated by superimposition of fine line patterns, and it is possible to obtain cards such as credit cards, admission tickets, etc. It can be applied to various printed materials.

[Brief description of the drawings]

FIG. 1 is a plan view of a printed wavy pattern of the present invention.

FIG. 2 is a plan view illustrating an example of a wavy line pattern according to the present invention.

FIG. 3 is a plan view illustrating an example of a solid net pattern according to the present invention.

FIG. 4 is a plan view illustrating an example of an orthogonal grid line pattern according to the present invention.

FIG. 5 is a partially enlarged schematic view of a printed wavy pattern of the present invention.

FIG. 6 is a partially enlarged plan view of a printed wavy pattern of the present invention.

FIG. 7 is a side view for explaining a manufacturing process of the printed wavy pattern of the present invention.

[Explanation of symbols]

A: Wavy line printed matter a: Wavy line pattern a1 ... Wavy line B: Wavy line pattern b1 ... Wavy line C: Plain net pattern c1 ... Straight line c2 ...
Halftone dot c3: White portion D: Orthogonal lattice line pattern d1, d2: Straight line E: Plate making pattern e: White portion f: Halftone dot g: Stepped portion L: Ultraviolet light P: Parabolic pattern p1: Parabolic S: Parabolic Axis 1: printing plate 2: photosensitizer layer 3: exposed part 4: unexposed part 5: exposed part 6: double exposure part

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B41M 3/14 B41D 15/10 501 G06K 19/10

Claims (2)

(57) [Claims] 1. A wavy line pattern in which a number of wavy lines are arranged at equal intervals at a desired pitch, and each wavy line is drawn with a step.
A printed wavy pattern, comprising a plurality of parabolic patterns coaxially arranged at predetermined intervals. 2. The parabolic pattern includes a plurality of wavy lines arranged at equal intervals at a desired pitch, and a plurality of wavy lines arranged at equal intervals at a desired pitch and a tangent near a wavy inflection point of the wavy pattern. And a parabola generated by superimposition with a plain mesh pattern with a dot area ratio of about 55% or less or an orthogonal grid line pattern with a grid line area rate of 55% or less, which is aligned at an angle of about ± 7.5 ° or more. Wavy pattern printed matter which is a pattern corresponding to a moire pattern.