JP3141665B2 - Printing plate manufacturing method - Google Patents

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 plate used for printing information such as characters and symbols on electronic parts.

[0002]

2. Description of the Related Art
When manufacturing a printing plate used to print information such as characters and symbols on electronic components, usually, a single master on which an image of a shape corresponding to the information to be printed such as characters and symbols is formed , Or a master unit with a plurality of masters in one, for example, by superimposing on a sheet-shaped plate material made of ultraviolet curable resin, and by exposing to ultraviolet light through the master, other than the area corresponding to the image of the master After developing the area, the information to be printed is obtained by cleaning the undeveloped portion of the sheet material corresponding to the image of the original plate and removing all of the portion in the thickness direction or a part of the surface side. The stamping plate is manufactured by forming a stamping surface (concave portion) corresponding to the above, and cutting the sheet-like plate material at a predetermined position with a cutter or scissors as necessary.

[0003] The printing plate is attached to a resin plate such as an acrylic resin plate or a base plate made of a metal plate such as aluminum or iron by using a double-sided tape or an adhesive, or by a screwing method. Thereafter, predetermined printing is performed by attaching ink to the printing plate and transferring the ink on the printing plate to an object (printing material) on which information such as electronic components is to be printed using a transfer pad.

[0004] By the way, the base plate on which the printing plate is mounted is accurately mounted at a predetermined position corresponding to the operation and the mounting position of the transfer pad in the printing process. Because deviation is easy to occur,
There is a problem in that the positional accuracy of the printing plate in relation to the base plate is low, the printing position is shifted, and printing defects occur.
In particular, when the printing object is a small electronic component having, for example, external electrodes formed at both ends, if the printing position shifts due to poor positional accuracy of the printing plate, the ink protrudes from a predetermined position to be printed and becomes external. There is a problem that it adheres to the electrode or causes poor electrical characteristics.

In order to solve these problems,
There is a problem in that accurate positioning when mounting the printing plate on the base plate takes much time and the work efficiency is reduced.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and provides a method of manufacturing a printing plate which has a high positional accuracy with respect to a base plate and can accurately print at a predetermined position on a printing substrate. The purpose is to provide.

[0007]

In order to achieve the above object, a method of manufacturing a printing plate according to the present invention comprises a step of mounting a sheet-shaped printing plate on a base plate made of a transparent material, and a step of mounting a sheet mounted on the base plate. A step of fixing the positional relationship between the base plate and the original plate by superimposing an original plate on which an image of a predetermined pattern corresponding to information to be printed, such as characters and symbols, is formed on the plate material; , Exposed through the master,
Forming a stamped surface corresponding to information to be printed, such as characters and symbols, on the sheet-shaped plate material by developing a predetermined area of the sheet-shaped plate material.

Further, after exposing the sheet-shaped plate material through the original plate and developing an area of the sheet-shaped plate material other than the region corresponding to the image of the original plate, the sheet-shaped plate material is exposed to the image of the original plate. And removing undeveloped portions.

[0009] Further, the present invention is characterized in that the positional relationship between the base plate and the original plate is fixed by setting the base plate on which the sheet-shaped plate material is attached and the original plate in a mold.

[0010]

The original plate on which an image having a shape corresponding to information to be printed is superimposed on a sheet-like plate attached to a base plate made of a transparent material, and the positional relationship between the base plate and the original plate is fixed. By exposing the sheet-shaped plate material through the original plate to form a stamped surface corresponding to information to be printed, the stamped surface is reliably formed at a predetermined position on the base plate.

Therefore, it is possible to easily and surely manufacture a printing plate which has a high positional accuracy in relation to the base plate and is capable of accurately printing at a predetermined position on a printing substrate.

Further, by setting the base plate on which the sheet-shaped plate material is mounted and the original plate in a mold and fixing the positional relationship between them, the base plate can be mounted on the base plate without requiring a complicated process. Since the positional relationship between the sheet-shaped printing plate and the original plate can be easily fixed, the method for manufacturing a printing plate of the present invention can be easily and reliably implemented to make it effective.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a method of manufacturing a printing plate according to one embodiment of the present invention, FIG. 2 is a perspective view showing a printing plate manufactured by the method of this embodiment, and FIG. FIG. 3 is a view showing a method of manufacturing an original plate used in the method.

As shown in FIG. 3, in manufacturing an original, first, a film 2 having slits 1 formed in a shape corresponding to information to be printed such as characters and symbols, and an original 3 having no image formed thereon. Is set in the mold 4. The mold 4 is provided with a concave portion 5 for holding and fixing the film 2 and the original plate 3 so as not to cause displacement, and the film 2 and the original plate 3 have a shape corresponding to the planar shape of the concave portion 5. Cut to dimensions.

After setting the film 2 and the master 3 on the mold 4 and exposing the same, an image 6 having a desired shape corresponding to the information to be printed on the master 3 (FIG. 1B) is formed.

In this embodiment, a case is described in which a film 2 having a slit 1 having a shape corresponding to character information to be printed of "100 V" is used.
The shape of the slit 1 is not limited to this, but may be any shape corresponding to information to be printed.

Next, the master 3 manufactured as described above is used.
A method for manufacturing a printing plate using will be described.

First, as shown in FIG. 1A, a sheet-like plate material 11 made of an ultraviolet-curable silicone resin is cut into a size larger than character information to be printed ("100 V" in this embodiment). Then, it is attached to a base plate (transparent plate) 12 made of a transparent material such as an acrylic resin by using a double-sided tape or an adhesive, or by screwing. Then, as shown in FIG. 1 (b), the original plate 3 is set on the mold 13 in such a manner that the image (character "100V") 6 can be seen upward when viewed from below. ,
The base plate 12 is set with the surface on which the sheet-shaped printing plate 11 is attached facing downward. Note that the original 3
Further, a concave portion 14 for holding and fixing the base plate 12 so as not to cause displacement is formed. The original plate 3 and the base plate 12 are cut into shapes and dimensions corresponding to the planar shape of the concave portion 14. Next, as shown in FIG. 1 (c), with the base plate 12 to which the sheet-shaped plate 11 is attached and the original plate 3 set in the mold 13, the sheet-shaped plate 11 is moved to the lower side of the mold 13. Is exposed to ultraviolet light through the original plate 3 from the
After developing the area other than the area corresponding to the image 6 of the original 3 (FIG. 1 (b)), the undeveloped portion corresponding to the image 6 of the original 3 The sheet-shaped printing plate material 1 is washed with water or alcohol to remove all of the portion in the thickness direction or a part of the surface side.
1, a stamp surface (recess) 15 (FIG. 2) corresponding to information to be printed is formed.

FIG. 2 shows a printing plate 11a manufactured by removing a part of the undeveloped portion corresponding to the image 6 of the sheet-shaped printing plate material 11 on the surface side in the thickness direction.

As described above, according to the method of manufacturing a printing plate of the present invention, the sheet-like printing material is exposed through the master while the positional relationship between the base plate and the master is fixed. Therefore, it is possible to reliably and reliably form a printing surface at a predetermined position on the base plate, and easily and surely manufacture a printing plate having high positional accuracy and capable of printing accurately at a predetermined position on a printing substrate. can do.

FIG. 4 is a diagram showing an example of a method for printing on an electronic component (substrate) having external electrodes formed on both ends using the printing plate manufactured by the method of the above embodiment. . In this method, ink (not shown) is attached to the printing surface 15 of the printing plate 11a, and the ink on the printing surface 15 of the printing plate 11a is transferred to the electronic component 17 using the transfer pad 16, so that the external electrodes 18 are formed. The printing is reliably performed at a predetermined position without the ink being attached to the ink.

In the above embodiment, the case where the base plate 12 and the original plate 3 are overlapped and set on the mold 13 to fix the positional relationship between the base plate 12 and the original plate 3 has been described. Even if you do not set it in the mold,
The base plate 12 and the original plate 3 can be overlapped with each other by using a fixing jig or the like to fix the positional relationship between them, and in this case, the same effect as in the above embodiment can be obtained. .

Further, in the above embodiment, the sheet-shaped plate material 11 is used.
After developing an area other than the area corresponding to the image 6 of the original 3 (FIG. 1 (b)), the surface side of the undeveloped part corresponding to the image 6 of the original 3 of the sheet material 11 is The case where the stamped surface (recessed portion) 15 (FIG. 2) corresponding to the information to be printed is formed on the sheet-shaped printing plate 11 by removing a part thereof has been described. By using this, it is possible to develop a region corresponding to the image of the original plate and remove the portion.

Further, the present invention is manufactured by, for example, using a sheet-like plate made of an ultraviolet-curable resin, developing and curing a portion corresponding to the image of the original plate, and removing an undeveloped portion. It can also be applied to a method for producing a printing relief plate.

The present invention is not limited to the above-described embodiment in other respects.
With respect to the shapes and constituent materials of the base plate and the original plate, as well as the shape and constituent materials of the mold, various applications and modifications can be made within the scope of the invention.

[0026]

As described above, according to the method of manufacturing a printing plate of the present invention, a sheet-shaped printing plate is mounted on a base plate made of a transparent material, and the sheet-shaped printing plate is formed with a shape corresponding to information to be printed. The original plate on which the image is formed is superposed, and the sheet-like plate material is exposed through the original plate in a state where the positional relationship between the base plate and the original plate is fixed. Can be reliably formed.

Therefore, it is possible to easily and surely manufacture a printing plate that has high positional accuracy in relation to the base plate and can perform printing at a predetermined position on a printing medium with high accuracy.

Further, by using the printing plate manufactured by the manufacturing method of the present invention, it is possible to reliably print at a predetermined position. Necessary information can be reliably printed without any occurrence. Furthermore, even when printing is performed on a small electronic component on which external electrodes are formed, it is possible to prevent the ink from adhering to the external electrodes and causing electrical characteristic defects.

Further, in the printing plate manufactured by the method of the present invention, the positional relationship between the printing surface and the base plate is fixed, so that the positioning with the base plate, which was conventionally required, is not required, and the work is not required. Efficiency can be improved.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are diagrams showing steps of a method for manufacturing a printing plate according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a printing plate manufactured by the method of the embodiment.

FIG. 3 is a view showing a method of manufacturing an original plate used in Examples.

FIG. 4 is a diagram showing a state where printing is performed on an electronic component using a printing plate manufactured by the manufacturing method of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 slit 2 film 3 original plate 6 image 11 sheet-like plate material 11a printing plate 12 base plate (transparent plate) 13 frame 14 concave portion 15 stamped surface 16 transfer pad 17 printed material (electronic component) 18 external electrode

Claims (3)

(57) [Claims] An image of a predetermined pattern corresponding to information to be printed, such as characters and symbols, is formed on a sheet-like plate material attached to a base plate made of a transparent material. By overlapping the originals, fixing the positional relationship between the base plate and the original, exposing the sheet-like plate through the original, and developing a predetermined area of the sheet-like plate, characters, symbols, etc. Forming a stamped surface corresponding to the information to be printed on a sheet-shaped plate material. 2. Exposing the sheet-shaped plate material to light through the original plate and developing an area of the sheet-shaped plate material other than the region corresponding to the image of the original plate. 2. The method according to claim 1, wherein the undeveloped portion is removed. 3. The printing plate according to claim 1, wherein the base plate to which the sheet-shaped printing plate material is attached and the original plate are set in a mold to fix the positional relationship between the base plate and the original plate. Production method.