JP2001018359A - Screen retaining frame for screen printing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screen retaining frame for screen printing which enables correct registering of the position of an image of each of screen printing plates at the point of time when the screen printing plate is prepared, in such screen printing process that an original image is split, then a screen printing plate is prepared for every split image segment and the original image is reproduced on a printed matter by printing with each of the screen printing plates for the segments. SOLUTION: Pin holes 2c for fixing a manuscript sheet 6 on which an image 4 to be formed on a screen 3 is drawn during preparation of a screen printing plate, are opened in the screen printing frame 2 for screen printing. The manuscript sheet 6 has the image 4 formed based on pin inserting holes 6a. Therefore, the screen printing plate consisting of the split image segments whose positions are correctly registered is obtained by fixing the manuscript sheet 6 to the screen retaining frame 2 through inserting pins 8 through pin insertion holes 6a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen holding frame used for screen printing.

[0002]

2. Description of the Related Art A gauze (screen) made of synthetic fiber or the like coated with an ultraviolet curable resin on the entire surface is provided on a frame, and a positive film or the like (hereinafter referred to as an original sheet) having a desired image (pattern) drawn on the screen is provided. ), And irradiate with ultraviolet rays, crush the texture of the area where the ultraviolet rays were irradiated by curing the resin, remove the resin in the area where the ultraviolet rays are not irradiated due to the pattern, and expose the texture to make the screen plate Create Screen printing in which the screen stencil prepared in this way is installed in a screen printing machine and ink is extruded through an exposed weave and printed is well known as one type of stencil printing.

In such screen printing, for example, when performing multi-color printing of two or more colors, an original sheet in which only a pattern of the same color portion is drawn is created for each color, and a screen plate is created for each color. Then, each screen plate is sequentially positioned and installed on a screen printing machine, printed with ink of each color, and an original multicolor picture is reproduced on a printed matter.

[0004]

However, when performing such multicolor printing, since the pattern of each document sheet is a partial pattern of the original pattern, when the document sheet is applied to the screen, It is necessary to perform registration between document sheets created for each color. However, this alignment cannot be performed easily, and the position may be shifted between the colors, and as a result, a screen plate in which the position of the picture is shifted between the colors is created. It is sufficient to correct this shift when the screen plate is installed on the screen printing machine, but the correction is not easy and it is troublesome.

The present invention has been made in view of such circumstances, and divides an original pattern, creates a screen plate for each of the divided patterns, and prints the original pattern on a printed material by printing on each screen plate. In reproducing screen printing,
It is an object of the present invention to provide a screen holding frame for screen printing that enables accurate alignment of a picture on each screen plate at the time of creation of the screen plate.

[0006]

According to the present invention, in a screen holding frame for screen printing, a pin inserted into the pin insertion hole of a document sheet formed on the basis of the pin insertion hole in the holding frame is removably inserted. Is provided with a pin hole for positioning and fixing.

According to the present invention, in preparing a document sheet for forming a screen plate, a pin insertion hole is formed in the sheet, and a pin provided at a predetermined position is inserted into the hole to overlap the original pattern. The necessary patterns are sequentially formed. Therefore, each of the divided pictures of the document sheet is formed with reference to the pin insertion hole. On the other hand, the screen holding frame is provided with pin holes for positioning and fixing the pins to be inserted into the pin insertion holes, so when creating the screen plate, the original sheet is inserted into the pin insertion holes and fixed to the screen holding frame. Then, the pattern of the document sheet is formed on the screen.
This enables accurate positioning of the picture on each screen version.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the configuration of a screen holding frame according to an embodiment of the present invention, FIG. 2 is a perspective view showing the structure of the screen holding frame of FIG. 1, and FIG. 4 is a perspective view of a photosensitive device,
FIG. 5 is a perspective view of a screen plate according to the embodiment of the present invention, and FIGS. 6 and 7 are explanatory diagrams of screen printing.
The same parts are denoted by the same reference numerals throughout the drawings.

In FIG. 5, 1 is a screen plate, 2 is a screen holding frame, 2a is a screen holding outer frame, 2b is a screen holding inner frame, 2c is a pin fixing hole, 3 is a screen, 4 is a picture formed on the screen. It is. The screen holding frame 2 includes an outer frame 2a and an inner frame 2b. As shown in FIG. 2, the outer frame 2a has a groove 2d formed around the outer frame 2a, and the inner frame 2b is fitted into the groove 2d. It is configured to fit. When the inner frame 2b is fitted into the groove 2d of the outer frame 2a, the screen 3 is arranged between the outer frame 2a and the inner frame 2b, and the peripheral edge of the screen 3 is sandwiched between the outer frame 2a and the inner frame 2b. The screen 3 is fixed to the screen holding frame 2 by fitting the inner frame 2b into 2d and tightening the bolts 5.

As shown in FIG. 1, a screen plate 1 has a screen 3 fixed to a screen holding frame 2 and a manuscript sheet 6 on which a desired pattern 4 is formed, and is provided with an ultraviolet lamp 11 shown in FIG. It is set in the apparatus 10, and the texture of the screen 3 other than the picture 4 is crushed by curing the resin by irradiating the ultraviolet ray, and the resin of the part not irradiated with the ultraviolet light by the picture 4 is removed by, for example, washing with water to expose the texture. Let it be created.

When the original sheet 6 is applied to the screen 3, a pin 8 is inserted into a pin insertion hole 6a formed in the original sheet 6.
Is inserted into a pin fixing hole 2 c formed in the screen holding frame 2, and the original sheet 6 is positioned and fixed to the screen holding frame 2 by the pins 8.

A pin insertion hole 6a formed in the original sheet 6.
Are formed to align the picture pattern when the original sheet 6 is created, and an example thereof is shown in FIG. In FIG. 3, reference numeral 12 denotes a sheet table, reference numeral 13 denotes a pattern to be printed (referred to as an original pattern), and this example is a sheet on which differently colored triangular, square and circular patterns are drawn. Positioning pins 12a are provided on the sheet table 12, and the sheet 13 is inserted into the pins 12a and fixed in position.

Now, assuming that a manuscript sheet 6 is to be prepared for a triangular pattern among the original patterns, an ultraviolet-transparent sheet having holes for inserting the pins 12a is prepared, and this sheet is inserted into the pins 12a. Then, only a triangular pattern is simulated on the overlapped sheet and extracted from the pins 12a to form the original sheet 6. Similarly, manuscript sheets 6 are created for square and circular pictures.

Each original sheet 6 thus created
Can obtain a picture positioned with reference to the pin insertion hole 6a. That is, when the original sheets 6 are overlapped with the pin insertion holes 6a aligned, the original pattern is reproduced.

The screen holding frame 2 is provided with a fixing hole 2c for removably fixing a pin 8 inserted through a pin insertion hole 6a formed in the original sheet 6. In the different screen holding frame 2, The fixing holes 2c are also formed at the same positions.), And each screen printing plate 1 created by positioning each original sheet 6 in accordance with the fixing holes 2c,
At the time of printing, only by setting each screen plate 1 at the same position and printing, the original picture is reproduced on the printed matter.

FIGS. 6 and 7 show a case in which printing is performed using the screen plate 1 thus created.
The screen plate 1 divides an original pattern, and prepares a screen plate 1 for each of the divided patterns (in the above example, triangular, square, and circular patterns). And that one
One screen plate 1 is set on a rotatable screen plate support portion 14 a of the printing press 14, and the base 1 of the printing press 14 is
The printed matter 15 is set on 4b, and the screen plate 1 is brought close to the printed matter 15 by rotating the support portion 14a.

In this state, a predetermined color ink is put on the screen 3, and the ink is extruded from the texture corresponding to the picture with a squeegee and printed on the printed matter 15. Then, the screen plate 1 is replaced, a screen plate of another pattern is set in the same position as the previous screen plate 1, and another color ink is placed thereon to print the printed matter 15.
Print on Thereafter, by printing the divided patterns, the original patterns on the printed matter 15 can be accurately and easily reproduced. The printing method is, for example, screen version 1
For example, printing may be performed on a plurality of printed materials 15 and then replaced with the next screen plate and printed in the same manner. However, in this case, it is necessary to position the printed matter 15.

In the above embodiment, one pin fixing hole 2c is formed on each of the upper, lower, left and right sides of the screen holding frame 2. However, the pin fixing hole 2c is
A plurality of pins may be provided at appropriate intervals around the pin to select the pin fixing hole 2c.

[0019]

As described above in detail, according to the present invention, the screen plate is created by using the pin insertion holes of the original sheet created based on the pin insertion holes, so that each of the divided patterns is A screen plate that is accurately aligned with the screen plate is obtained, and the alignment of each screen plate during printing is simplified. Further, a complicated mechanism for positioning the screen plate in the printing press can be omitted, and a simple printing press can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of a screen holding frame according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a structure of a screen holding frame of FIG.

FIG. 3 is an explanatory diagram illustrating creation of a document sheet.

FIG. 4 is a perspective view of a photosensitive device.

FIG. 5 is a perspective view of a screen plate according to the embodiment of the present invention.

FIG. 6 is an explanatory diagram of a set of screen printing.

FIG. 7 is an explanatory diagram of a printing state of screen printing.

[Explanation of symbols]

 Reference Signs List 1 screen plate 2 screen holding frame 2a screen holding outer frame 2b screen holding inner frame 2c pin fixing hole 2d concave groove 3 screen 4 picture 5 bolt 6 original sheet 6a pin insertion hole 8 pin 10 photosensitive device 11 ultraviolet lamp 14 printing machine 14a screen Plate support part 14b Base 15 Printed matter

Claims (1)

[Claims] 1. A screen holding frame for screen printing, wherein a pin hole is provided in the holding frame so as to removably position and fix a pin inserted into the pin insertion hole of a document sheet created based on the pin insertion hole. A screen holding frame for screen printing, comprising: