JPH04347695A - Metal printing plate and its manufacture - Google Patents

Abstract

PURPOSE:To enable a metal printing plate to be manufactured at a low cost in a very short time and to enable it to be reused repetedly. CONSTITUTION:A registrating mark 3 is provided to a metal plate 2 of a printing plate frame 1 and besides, a plurality of openwork holes 4 are arranged on the whole surface. Each openwork hole 4 is filled by an ultraviolet setting type adhesive 5 as a light setting type filler. It is developed after hardening via a process film 9 to form a printing pattern 6 on the metal plate 2.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal printing plate for screen printing for printing a coating material onto a printing medium and a method for manufacturing the same.

0002

[Prior art] As a prior art, Japanese Patent Publication No. 2-1286
An example of this invention is disclosed in Publication No. 8, in which a plurality of circles or regular polygons having sides that are an integral multiple of 4 are assembled to form an opening in a metal plate.

Now, in a metal plate for screen printing that prints a coating material on a normal printing material, the larger the opening width in the direction perpendicular to the printing direction, the more likely the elastic squeegee will fit inside the opening. The thickness of the applied material becomes non-uniform due to differences in the size of the openings or differences in the width of the openings depending on the printing direction. However, according to the invention described in the above-mentioned publication, the opening area of the metal plate is made up of a collection of holes of the same size, which makes it difficult for the elastic squeegee to enter the opening, and the applied material is uniformly distributed. It becomes thick.

0004

[Problem to be solved by the invention] According to the conventional method,
Although the printing thickness can be made almost constant, a new metal plate must be manufactured for each printing machine type, which has the drawback of increasing costs. Furthermore, when designing a printed circuit board, since the soldering land and the printing pattern are different, a mask for printing must be specially designed, which makes the design complicated and easy to make mistakes.

[0005] The present invention can be reused even if the model changes without producing a new metal plate, and the printing mask can be designed exclusively by using the same film as the soldering land designed at the time of designing the printed circuit board. The purpose of this invention is to provide a metal printing plate and its manufacturing method that can eliminate the need for it.

[0006]

[Means for solving the problems] The metal printing plate of the present invention has the following features:
In a metal printing plate having a frame-shaped printing plate frame for printing a coating material on a printing material and a metal plate attached to the inside of the printing plate frame, the metal plate is provided with a mark for positioning a plate-making film and the entire surface is a plurality of through holes are arranged in the substrate, and among the through holes, a photocurable filler is filled and cured in the through holes other than the holes necessary for forming the printing pattern of the printing material. It is characterized by being constructed by forming a printed pattern.

[0007] Furthermore, the method for manufacturing the metal printing plate of the present invention includes:
A method for manufacturing a metal printing plate, in which a printing pattern of the coating material to be printed on the printing material is formed on a metal plate attached to the inside of a frame-shaped printing plate frame for printing the coating material on the printing material, A step of arranging a plurality of through holes on the entire surface of the metal plate, a step of filling each of the through holes with a photocurable filler, and a step of forming a plurality of through holes in the metal plate through a plate-making film to correspond to the printing pattern. This process consists of the steps of photocuring the filler in each through hole and developing it to form a printed pattern on the metal plate.

[0008]

[Function] Each through hole arranged on the entire surface of the metal plate becomes a basic lattice during printing, similar to the mesh of a conventional mesh plate. Similar to the mesh version of the emulsion, it acts as a mask for the coating material. In addition, we use different types of solvents to dissolve the photocurable filler before and after curing, and first remove the portions that make up the desired printing pattern, which are embedded in the through holes of the entire metal plate, using a solvent. , to ensure an opening for printing. In addition, by removing the photocurable filler after curing with a solvent different from the above-mentioned solvent, it is possible to open the inside of the through holes provided on the entire surface of the metal plate and form a different printing pattern again. It becomes possible.

[0009]

Embodiment 1 Embodiment 1 according to the present invention is shown in FIG. 1, an enlarged view of a metal plate is shown in FIG. 2, and steps of the manufacturing method are shown in FIGS. 3 to 8, respectively.

[0010] A frame-shaped printing plate frame 1, a metal plate 2 made of stainless steel, for example, attached to the inside of the printing plate frame 1, and a plate-making film positioning mark 3 provided on the surface of the metal plate 2, Further, on the entire surface of the metal plate 2, through-holes 4 having a thickness equal to or less than, for example, 150 μm and a particle size of the coating material, for example, 40 μm, are bored in a lattice shape or a honeycomb shape (Fig. 2). After the metal printing plate 10 having the above structure is tightly fixed on the smooth surface plate 7 (FIG. 4), an acrylate-based ultraviolet curing adhesive 5 as a photocurable filler is placed on the metal plate 2, Printing is performed using a squeegee 8 (FIG. 4), and the adhesive 5 is embedded in all the through holes 4 (FIG. 5). Furthermore, the plate-making film 9 prepared positively on the metal plate 2 is closely fixed (FIG. 6), and ultraviolet rays are irradiated from above with the irradiation lamp 13 to remove the adhesive 5 in the portions of the through-holes 4 other than the printed pattern 6. (Figure 6). Thereafter, by immersing the metal plate 2 in a container 12 filled with a developer, for example, an alcohol 14 such as ether, or by shower spraying the developer on the metal plate 2, the through holes 4 in the unhardened portions are formed. The adhesive 5 embedded in the through holes 4 in the portion where the printed pattern 6 is to be formed is completely removed and developed, thereby forming the printed pattern 6 (FIG. 7). In this way, the metal printing plate 15 shown in FIG. 8 can be formed.
A required coating material is applied to the coating surface of a printing material (not shown) according to the printing pattern 6 by screen printing.

[0011] When the role of the metal printing plate 15 is completed, the metal plate 2 is immersed in dichloromethane.
Alternatively, by completely removing the hardened adhesive 5 embedded in the through holes 4 other than the printing pattern 6 by showering or spraying, another printing material can be printed in the steps shown in FIGS. 3 to 8. Pattern 6 can be formed and reused. As a modification, a water-soluble ultraviolet curable adhesive may be used instead of the acrylate ultraviolet curable adhesive 5, and the uncured portions are removed with alcohol, and the cured portions are removed with water.

According to the first embodiment of the present invention having the above configuration, the printing thickness is constant regardless of the printing direction, metal printing plates can be produced at low cost in a very short period of time, and metal printing plates can be repeatedly recycled. This has the effect of making it possible.

[0013]

[Embodiment 2] Embodiment 2 according to the present invention is shown in FIGS. 9 and 10, which are plan views of essential parts of a metal plate. In the configuration of Example 1, the thickness of the metal plate 2 is 150 mm.
1 of the square through holes 11 drilled in the metal plate 2.
They are arranged in a grid pattern (FIG. 9) or staggered pattern (FIG. 10) with sides of 150 μm or less and a pitch of 300 μm. As a modification, the hole may have a polygonal shape. Since the other configurations are the same as those of the first embodiment, specific illustrations and explanations will be omitted.

According to this embodiment, in addition to the effects of the first embodiment, it is possible to print a larger amount of coating material than the metal plate 2 having circular holes.

In the above examples, an ultraviolet curable adhesive was used as a photocurable filler, but other photocurable fillers may also be used. It is also possible to use a thermosetting filler instead of the filler.

[0016]

According to the present invention, a metal printing plate can be manufactured at low cost in a short period of time, and the metal printing plate can be repeatedly recycled and used.

[Brief explanation of drawings]

FIG. 1 is a plan view of a metal printing plate of the present invention.

FIG. 2 is an enlarged plan view of the main part of the metal plate.

FIG. 3 is an explanatory diagram of the manufacturing process.

FIG. 4 is an explanatory diagram of the manufacturing process.

FIG. 5 is an explanatory diagram of the manufacturing process.

FIG. 6 is an explanatory diagram of the manufacturing process.

FIG. 7 is an explanatory diagram of the manufacturing process.

FIG. 8 is an explanatory diagram of the manufacturing process.

FIG. 9 is an enlarged plan view of the main part of the metal plate.

FIG. 10 is an enlarged plan view of the main part of the metal plate.

[Explanation of symbols]

1 Printing plate frame 2 Metal plate 3 Positioning marks 4, 11 Through hole 5 Ultraviolet curing adhesive 6
Printing pattern 7 Surface plate 8 Squeegee 9 Plate-making film 10 Metal printing plate 12 Container 13 Irradiation lamp 14 Developer 15 Metal printing plate

Claims (2)

[Claims] 1. A metal printing plate having a frame-shaped printing plate frame for printing a coating material onto a printing material and a metal plate attached to the inside of the printing plate frame, wherein a plate-making film is positioned on the metal plate. A mark is provided and a plurality of through holes are arranged on the entire surface, and a photo-curable filler is placed in each of the through holes other than the holes necessary for forming the printing pattern of the printing material. A metal printing plate characterized in that it is constructed by filling and curing to form a printing pattern. 2. A metal printing plate for forming a printing pattern of the coating material to be printed on the printing material on a metal plate attached to the inside of a frame-shaped printing plate frame for printing the coating material on the printing material. In the manufacturing method, a step of arranging a plurality of through holes on the entire surface of the metal plate, a step of filling each of the through holes with a photocurable filler, and a step of disposing the metal plate through a plate-making film on the metal plate, A method for manufacturing a metal printing plate, comprising the steps of photocuring and developing a filler in each hole corresponding to a printing pattern to form a printing pattern on the metal plate.