JPH0885248A - Manufacture for penetrating printing material - Google Patents

Abstract

PURPOSE: To provide a manufacturing method for penetrating printing material which can impress both thin and thick lines clearly on a printing surface even if they are mixed with each other. CONSTITUTION: A transferring member 6 provided with roughness 7, 8 of prescribed shapes is hot-compressed against a continuously-foaming raw material 10 for printing material to form roughness 10a, 10b for a printing surface so as to make ink get out of a protruding part 10b other than a melting part in the surface of the raw material 10 for printing surface. Then, to make constant the height of a plurality of protruding parts 10b of roughness 10a, 10b for printing surface, an adjusting plate 16 provided, on the surface, with roughly uniform roughness 17, 18 finer than the roughness shape of the roughness 10a, 10b for printing surface is hot-compressed against the surface of the raw material 10 for printing material to manufacture the printing material 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a printing material used for a penetrating stamp, and more specifically, even if fine characters / patterns and thick characters / patterns are mixed, they are clearly marked. The present invention relates to a method of manufacturing an infiltration type stamp material that can be imprinted.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 1, a penetrating type printing material has a concavo-convex pattern 7 in which a predetermined character or the like is reversed on a printing material 10 made of an open-cell olefinic thermoplastic elastomer. The transfer member 6 provided with No. 8 was manufactured by thermocompression bonding.

On the printing surface 2 of the printing material 1, the concave portions 3 of the transfer member 6 which are in contact with the convex portions 8 are melted and fill the continuous holes of the printing material 10, so that the ink stains occur. The convex portions 4 and 5 corresponding to the concave portions 7 of the transfer member 6 are the portions that do not come out.
Is not melted, the tip surfaces 4a and 5 of the protrusions 4 and 5
a is the portion where the ink oozes out.

[0004]

However, in the manufacturing method as described above, a wide convex portion 4 which becomes a thick line or a large point at the time of imprinting, and a thin line or a small line at the time of imprinting are formed on the stamp surface 2. When the narrow convex portions 5 such as points are arranged close to each other, or when the plural narrow convex portions 5 are densely arranged, the concave portion 3 of the stamp surface 2 is melted by heating. Due to the above-mentioned formation, it is inevitable that the height of the narrow convex portion 5 becomes lower than that of the wide convex portion 4.

With such a printing surface 2, when the printing material 1 is imprinted on a predetermined paper, if the pressing force is weak, the paper surface onto which the narrow convex portion 5 is transferred will be blurred. On the contrary, if the pressing force is strong, the narrow convex portion 5 is clearly imprinted, but the ink is excessively ejected from the wide convex portion 4 and bleeding occurs on the paper surface to which the wide convex portion 4 is transferred. However, it becomes an unclear impression.

The present invention solves the above-mentioned problems, and provides a method for producing a permeation-type printing material capable of clearly imprinting thin lines, thick lines, and the like even when they are mixed on the printing surface. The purpose is to do.

[0007]

According to the manufacturing method of the present invention, a transfer member having irregularities of a predetermined shape is thermocompression bonded to an open-cell printing material, and a molten portion is formed on the surface of the printing material. The printing surface of the composition that exudes ink from the removed convex part,
A method of manufacturing an infiltration type printing material to be formed, wherein after the transfer member is heated and pressure-bonded, the unevenness of the printing surface unevenness is substantially uniform so that the heights of the plurality of convexities of the printing surface unevenness are constant. The adjusting plate having the unevenness of 2 is heat-pressed to the surface of the printing material.

Further, after the adjustment plate is heated and pressure-bonded to the surface of the printing material, the recessed portion having a large area on the printing surface may be heated and pressed.

[0009]

In the method of manufacturing the permeation type stamp material according to the present invention, after the transfer member is heated and pressure-bonded to the stamp material, the heights of the plurality of convex portions of the stamp impression are made constant. Since the adjustment plate having a substantially uniform unevenness, which is finer than the uneven shape of the unevenness for the stamp surface, is thermocompression bonded to the surface of the stamp material, the height of the wide convex portion or the narrow convex portion of the stamp surface can be increased. , Smoothed out and become almost uniform.

Therefore, since the heights of the plurality of convex portions on the printing surface of the printing material are all constant, even if thin lines / small points, thick lines / large points, and the like are mixed, they can be easily applied. Can be clearly imprinted.

Since the unevenness formed on the surface of the adjusting plate is finer than the uneven shape of the unevenness for the stamp face, the entire tip surface of the convex part for the stamp face is melted when the adjusting plate is heat-pressed. Instead, the ink bleeding hole on the tip end surface of the convex portion remains to some extent, and it is possible to imprint a predetermined character or pattern without any trouble.

Further, after the adjusting plate is heated and pressure-bonded to the surface of the stamp material, a recessed portion having a large area on the stamp surface is removed.
In the case of heating and pressing, it is possible to melt the unnecessary part of the stamp on the stamp surface of the stamp and completely seal it.
The so-called unnecessary portion of the stamp surface can be masked, and the concave portion of the stamp surface lowers and the convex portion of the stamp surface relatively projects.
Even with strong imprinting, it is easy to imprint only the convex portion of the imprint surface to be transferred, and it is possible to imprint more clearly.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The permeation type stamp 11 produced in the embodiment has pores of about 1 to 10 .mu.m continuously formed, and the open-celled soft olefin having a bubble ratio of about 60 to 80% as in the conventional case. The stamp material 10 is made of a thermoplastic thermoplastic elastomer, polypropylene, polyamide, or the like. The material 10 has a thickness of about 3 to 5 mm.

A transfer member 6 which is heat-pressed onto the stamp material 10
In the same manner as the conventional one, the predetermined convex portion 8 and the predetermined concave portion 7 are formed.

The production of the transfer member 6 will be described. For example, when a photosensitive resin is used, the printing material 11 is known as disclosed in JP-A-6-135110.
The pattern to be stamped with, etc. is drawn in advance on a transparent film in a dark color, the transparent film is placed on a positive photosensitive resin plate, the resin plate is exposed, and then a prescribed chemical such as water is poured, The transparent film can be manufactured by leaving a portion corresponding to the transparent portion so as to be a convex portion. Further, if the etching process is used, the transfer member 6 can be manufactured from a metal plate such as a steel plate or an aluminum plate.

The height difference L0 between the concave portion 7 and the convex portion 8 of the transfer member 6 may be about 0.5 to 1.0 mm.

An adjusting plate 16 which is heat-pressed to the stamp material 10
As shown in FIGS. 3 and 4, the unevenness 10a formed on the surface of the material 10 after the transfer member 6 is heat-pressed on the surface
Substantially uniform irregularities 17 and 18 finer than 10b are formed. The recess 17 of the adjusting plate 16 is
More than 250 × 250 (in printing terms, 250L) squares, preferably 330 × 330 (in printing terms, 350L) squares per 1 inch square of the surface of 60 to 60% of the area of each square. It is configured by forming a circular recess 17 of about 90% (in other words, 0.
A circular recess 17 having a diameter of 60 to 90% of the side length of the square is formed in each square of 1 mm square, preferably 0.07 mm square or less). These recesses 17
Similarly to the case of manufacturing the transfer member 6, when a photosensitive resin is used, a scanner or the like is used in advance to draw a large number of black dots corresponding to the concave portions 17 on a transparent film, and the transparent Place the film on the positive photosensitive resin plate,
The resin plate is exposed to light, and then a predetermined chemical such as water is poured to expose the portion corresponding to the transparent portion of the transparent film to the convex portion 18
If left, it can be manufactured. Also,
If the etching process is used, the adjusting plate 16 can be manufactured from a metal plate such as a steel plate or an aluminum plate.

The height difference between the concave portion 17 and the convex portion 18 of the adjusting plate 16 is about 0.1 to 0.15 mm.

Furthermore, if the diameter of each concave portion 17 of the adjusting plate 16 is as large as 90% in each square such as 250 L or 330 L, ink will ooze out from the tip end surface of the printing surface convex portion 14 at the time of imprinting. If the amount increases and decreases to 60%,
Since the amount of ink bleeding from the tip surface of the convex surface 14 at the time of imprinting becomes small, a thin line on the imprint surface 12 to be imprinted
It is selected as appropriate according to the ratio of dots and the like to thick lines and dots.

In the method for manufacturing the stamp material 11 of the embodiment, as shown in FIG. 2, first, as in the conventional case, the stamp member material 10 is heated to about 100 to 120 ° C. and the transfer member 6 is heated.
Crimp. By the way, the pressing stroke of the transfer member 6 at this time is about 1/2 of the depth of the recess 7 of the transfer member 6 as in the conventional case, and the unevenness 10 on the surface of the stamp material 10 is used.
The stroke is such that the height difference between a and 10b is about 0.5 to 0.8 mm.

After that, the transfer material 6 is heated and pressure-bonded to the stamp material 10, and the adjusting plate 1 is heated to about 100 to 120 ° C.
Crimp 6 In addition, the pressing stroke of the adjusting plate 16 at this time is set to the material 10 in order to secure a hole through which ink oozes out.
It is necessary to prevent the entire tip surface of the convex portion 10b from melting, for example, about half the depth of the adjustment plate concave portion 17
It is about 0.05 to 0.07 mm.

Further, the masking plate 26 is thermocompression bonded to the stamp material 10 on which the adjusting plate 16 is thermocompression bonded. The masking plate 26 is formed with a convex portion 28 formed by heating and pressing a large-area concave portion 13a on the stamp surface 12 of the stamp material 11.
And the concave portion 27 that does not contact the tip surface of the convex portion 14 of the stamp surface 12.
And are provided on the surface. The manufacturing of the masking plate 26 is the same as the manufacturing of the transfer member 6, and when a photosensitive resin is used, the portion of the concave portion 13a except the dense convex portion 14 on the stamp surface 12 of the stamp material 11 is Preliminarily draw on a transparent film in dark color, put the transparent film on a positive type photosensitive resin plate, expose the resin plate, and then pour a prescribed agent such as water to correspond to the transparent part of the transparent film So that the portion to be formed becomes the convex portion 28,
If left, it can be manufactured. If the etching process is used, the masking plate 26 can be manufactured from a metal plate such as a steel plate or an aluminum plate.

Thereafter, the printing material 11 is put into contact with the printing material 11 as shown in FIG.
The penetration stamp 30 can be manufactured by fixing it to the base 32 of the stamp base 31 in which the ink tank 33 is arranged.

In the embodiment, after the transfer member 6 is heat-pressed onto the stamp material 10, the stamp surface unevenness 10a is further applied.
An adjustment plate 16 having substantially uniform irregularities 17 and 18 finer than the irregularities of the stamp surface irregularities 10a and 10b is provided on the surface of the stamp material 10 so that the heights of the plurality of convex portions 10b of the stamp material 10b are constant. Since the surface is pressed by heat, the stamp surface 1
The heights of the two wide convex portions 14a and the narrow convex portions 14b are leveled and become substantially uniform.

Therefore, since the heights of the plurality of convex portions 14 (14a, 14b) on the stamp surface 12 of the stamp material 11 are all constant, thin lines, small points, thick lines, large points, etc. approach when stamping. Even if the lines are thin or the thin lines and small dots are dense, they can be easily and clearly imprinted.

Incidentally, the concave portion 17 of the adjusting plate 16 is
When it was provided in each 0 L square, the characters drawn in a 0.1 mm line or 1 mm square could be clearly imprinted, and the bar code could also be clearly imprinted.

Further, in the embodiment, when the adjusting plate 16 is heated and pressure-bonded to the surface of the stamp material 10, and when the large-diameter recessed portion 13a of the stamp surface 12 is heated and pressed, the stamp surface 12 of the stamp material 11 is pressed. It is possible to melt and completely seal an unnecessary portion of the imprint, so-called masking of the unnecessary portion of the imprint surface 12, and to lower the concave portion 13a of the imprint surface 12 so that the convex portion 14 of the imprint surface 12 relatively. Since it protrudes, even if it is strongly imprinted, it becomes easy to imprint only the convex portion 14 of the imprint surface 12 to be transferred, and it is possible to imprint more clearly.

[Brief description of drawings]

FIG. 1 is a diagram showing a conventional manufacturing method.

FIG. 2 is a diagram showing a manufacturing method according to an embodiment of the present invention.

FIG. 3 is an enlarged sectional view of an adjusting plate used in the same embodiment.

FIG. 4 is an enlarged bottom view of an adjusting plate used in the same embodiment.

FIG. 5 is a partially cutaway perspective view of a stamp provided with a printing material manufactured in the same example.

[Explanation of symbols]

 1 · 11 ... Stamping material, 2/12… Stamping surface, 3 · 13… Recessed portion, 4 · 5 · 14… Convex portion, 6… Transfer member, 7… Recessed portion, 8… Recessed part, 10b ... Convex part for printing surface, 16 ... Adjusting plate, 17 ... Recessed part, 18 ... Convex part, 26 ... Masking plate, 27 ... Recessed part, 28 ... Convex part.

Claims (2)

[Claims] 1. A constitution in which a transfer member having irregularities of a predetermined shape is thermocompression-bonded to an open-cell printing material, and ink is exuded from the convex portion excluding the melted portion on the surface of the printing material. A method of manufacturing an infiltration type stamp material for forming a stamp surface, wherein the transfer member is heated and pressure-bonded, and the height of a plurality of convex portions of the stamp surface unevenness is made constant so that A method for producing an infiltration type printing material, comprising heating and pressure-bonding an adjusting plate having fine and substantially uniform unevenness on the surface of the printing material. 2. The method for producing a permeation type stamp material according to claim 1, wherein the adjustment plate is heated and pressure-bonded to the surface of the stamp material, and then a concave portion having a large area on the stamp surface is heated and pressed.