JPH05169621A - Stretching method for screen printing block plated on roll into screen frame - Google Patents

Abstract

PURPOSE:To provide a stretching method for a plated screen block plated on a roll in which a screen printing block plated on a roll is peeled off and applied under tension onto a frame of a screen printing block in an easy and good manner. CONSTITUTION:A double side adhesive tape 2 is bonded with (or a bonding agent is applied to) a frame device 1 with variable length of frame sides in a manner of overlapping four corners of a screen printing block A plated on a roll R to bring the roll R into contact with the frame device 1 rotating relatively, and the screen printing block A is applied in the plane shape onto the frame device 1 while being peeled off the roll R by the double side adhesive tape 2. Then the length of frame sides of the frame device 1 is made larger and the screen printing block A is laid out under tension, and the double side adhesive tape 4 is bonded with (or a bonding agent is applied to) onto a printing frame 3 and bonded with the screen printing block A to bond and fix the screen printing block A with the plate frame 3, and then excessive sections A3 around the plate frame 3 of the screen printing block A are cut off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for peeling a screen printing plate plated on a roll and tensioning the screen printing plate on a plate under tension to obtain a screen printing plate for single-sheet printing.

[0002]

2. Description of the Related Art Conventionally, a method for producing a screen printing plate is
A resin or nickel-plated base material mesh sheet is coated with a photosensitive film, a positive manuscript film is created based on the design data, the positive manuscript film is overlaid, exposed and developed to form a negative resist image. Was there.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention As a method for producing a screen printing plate which can be produced at a low cost without the need for a base material mesh sheet or an original film, the present inventor screen-prints a roll by plating and peeling it off. Invented a separate version (separate application). However, it is almost impossible to peel off the screen printing plate and stick it to the plate frame in a tensioned state.

The present invention has been devised in view of the above-mentioned points, and it is possible to easily and satisfactorily peel off a screen printing plate plated on a roll and attach it to a plate frame of a screen printing machine in a tension state. The aim is to provide a way to do it.

[0005]

Means for Solving the Problems As a means for solving the above-mentioned problems, the present invention is such that the roll R is overlapped at four corners of a screen printing plate A which is peelably formed by a required manufacturing method. Alternatively, the double-sided adhesive tape 2 is stuck or an adhesive is applied to either one of the plate sticking surfaces of the rectangular underframe device 1 of a required size whose frame side length is variable, and the roll R and the stand are attached. By making relative rolling contact with the frame device 1, the screen printing plate A is peeled from the roll R by the double-sided pressure-sensitive adhesive tape 2 or the adhesive, and stuck to the underframe device 1 in a planar manner, and then the underframe device 1
The screen printing plate A is tensioned by enlarging the vertical and horizontal frame sides, and the double-sided adhesive tape 4 is stuck on the plate-laminating surface or an adhesive is applied to bring the plate frame 3 into close contact with the screen printing plate A. Then, after the screen printing plate A and the plate frame 3 are adhered and fixed, a margin A3 around the plate frame 3 of the screen printing plate A is cut off. It provides a method of attaching to an underframe.

[0006]

EXAMPLE An example of a method for sticking a screen printing plate plated on a roll to a plate frame of the present invention will be described with reference to the drawings. First, a peelable screen printing plate A is formed on the roll R by plating by an appropriate method. For example, as shown in FIG. 3, both ends of a stainless steel roll R or a balladed copper-plated roll R are treated so that plating does not adhere to them, and a strip-shaped belt where no plating adheres to a required position in the roll length direction. A non-plated area R1 is formed, a metal tape T to which plating is attached is applied so as to cover the end of the non-plated area R1, then the roll R is coated with a photosensitive film, and then the roll R is supported at both ends. By rotating and scanning the roll R with a large number of laser beams L arranged in a desired manner based on electronic data of a proper halftone image, and moving and scanning the roll image in the roll surface length direction while driving the halftone image. Laser exposure to a position away from the non-plated area R1 and the metal tape T by a required distance, and a negative resist image with halftone dots is formed by subsequent development. After nickel plating, nickel alloy, to form a Hakuchi portion A2 around with copper plating or copper alloy plating to form a positive-plating image portion A1,
As shown in Fig. 1 (a), the plated image area A1 and the foil area A
The screen printing plate A consisting of 2 can be plated on the roll R. Further, when the laser exposure is performed without forming the non-plated area R1, the endless screen printing plate A shown in FIG. 1 (a ') can be formed on the roll R by plating. The method of forming a resist image on the roll R is not limited to laser exposure printing, and a positive original film prepared based on the above design data is superposed on a roll coated with a photosensitive film, exposed, and developed. Then, a negative resist image may be formed.

Next, the screen printing plate A, which is peelably plated on the roll R, is peeled off and attached to the underframe device 1 under tension. In the screen printing plate A shown in FIG. 1A, as shown in FIG. 1B, the metal tape T is peeled off, and then the double-sided strong adhesive tape 2 is attached so as to overlap the four corners of the screen printing plate A. . Figure 1 (a ')
As shown in FIG. 1 (a ″), the screen printing plate A shown in FIG.
As shown in (b), the double-sided strong adhesive tape 2 is applied so as to overlap the four corners of the screen printing plate A (Note that instead of applying the double-sided adhesive tape 2, apply a quick-drying strong adhesive. It may be applied using a roller.) Next, the roll R and the underframe device 1 are relatively brought into rolling contact with each other, and the screen printing plate A is peeled off from the roll R by the double-sided adhesive tape 2 while the horizontal and vertical frames are applied. The base frame device 1 whose side length is variable is stuck in a planar shape.

Next, the periphery of the screen printing plate A stuck in a plane shape is pressed by the clamps 1f, ... And the actuators 1d, 1d attached to the channel frame piece 1a are extended to linearly extend the upper frame piece. 1b is moved to the outside by a very small dimension, and the actuator 1e attached to the channel frame piece 1a is contracted to move the auxiliary frame piece 1c to the outside by a very small dimension. The screen printing plate A is placed in a tensioned state by making the frame side length extremely large.

Next, below the screen printing plate A stretched under tension on the underframe device 1, on a lift table (not shown) which is lifted and lowered by a motor, a double-sided strong adhesive tape 4 is applied to the plate sticking surface. Place the plate underframe 3 (or apply a strong adhesive) on which the
When the plate frame 3 is brought into close contact with the lower surface (plate surface) of the screen printing plate A, the rise of the plate frame 3 is stopped, and the plate frame 3 is traced indirectly from the upper surface of the screen printing plate A with a soft object. In this way, the adhesive fixing of the screen printing plate A and the plate frame 3 with the double-sided strong adhesive tape 4 (or strong adhesive) is secured, and then the margin A3 around the plate frame 3 of the screen printing plate A is secured. Cut it off with cutter C. In this way, when the plate frame 3 to which the screen printing plate A is attached in a tension state is removed, the plate is turned upside down and attached to the screen printing machine,
The plate surface is on top.

[0010]

As described above, according to the method for sticking the screen printing plate plated on the roll to the plate frame according to the present invention, the screen printing plate plated on the roll is peeled off and the screen is removed. It can be easily and satisfactorily attached to the plate frame of the printing machine in a tensioned state.

[Brief description of drawings]

FIG. 1 is a process drawing of a method of sticking a screen printing plate plated on a roll to a plate frame according to an embodiment of the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a schematic perspective view for explaining laser exposure baking which is one initial step when a screen printing plate is formed on a roll by plating.

[Explanation of symbols]

 R roll A screen printing plate A3 extra 1 frame device 2 double-sided adhesive tape or adhesive 3 plate underframe 4 double-sided adhesive tape or adhesive

Claims (1)

[Claims] 1. A plate mounting of a rectangular underframe device of a required size such that it overlaps four corners of a screen printing plate which is peelably formed on a roll by a required manufacturing method, or a frame side length is variable. Screen printing with the double-sided adhesive tape or the adhesive, by sticking a double-sided adhesive tape or applying an adhesive on either one of the surfaces to bring the roll and the underframe device into relative rolling contact. While peeling the plate from the roll, stick it to the underframe device in a flat shape,
Next, increase the vertical and horizontal frame side lengths of the underframe device and squeeze the screen printing plate in a tension state, and either stick double-sided adhesive tape on the plate staking surface or apply adhesive to make the plate underframe a screen printing plate. After closely adhering and fixing the screen printing plate and the plate frame to each other, the margin around the plate frame of the screen printing plate is cut off to the plate frame of the screen printing plate formed on the roll. How to stake in.