TWI496698B - Method for manufacturing large-sized resin relief printing plate and large-sized resin relief printing plate manufactured by the same method - Google Patents

Description

Method for manufacturing large resin relief and large resin relief obtained by the same

The present invention relates to a method for producing a large resin relief which connects a plurality of resin reliefs and a large resin relief obtained by the production method.

In the past, a resin relief which is formed as a printing convex portion in a printing region has been used for various relief printing such as a flexographic printing method. In recent years, in the surface of a TFT substrate or a color filter substrate used for a color liquid crystal television, a method of forming an alignment film or an insulating film by a flexographic printing method is also often performed.

In order to cope with this trend, color LCD TVs have been enlarged year by year. In order to correspond to the recent large-scale color liquid crystal television, the size of the resin relief must be made, for example, about 2500 mm × 3000 mm. However, this size resin relief cannot be manufactured with existing equipment. Therefore, although the size of the equipment is considered to be large, the manufacturing cost will be greatly increased.

Therefore, there has been proposed a method of increasing the size of a resin relief by connecting a plurality of resin reliefs of a size which can be manufactured by an existing apparatus (for example, refer to Patent Document 1). In this method, first, resin reliefs 10, 20 having a plurality of alignment marks 17 and 27 for determining the connection position and two printing projections 18 and 28 (two in FIG. 9) are formed as shown in FIG. 9; There is a sheet 50 for aligning the alignment position with the alignment mark 57 as shown in FIG. Next, as shown in FIG. 11, the alignment position of the alignment position sheet 50 is adjusted by the alignment mark 57, and the alignment marks 17 and 27 of the two resin reliefs 10 and 20 are overlapped in a plan view. The sheet resin reliefs 10, 20 are placed on the surface of the sheet 50 for alignment position. Thereby, the two resin reliefs 10 and 20 are automatically determined at appropriate positions, and a gap (width: 6 to 15 mm) 40 is formed between the adjacent resin reliefs 10 and 20. Thereafter, as shown in FIG. 12, the adhesive 30 such as a photosensitive resin is filled in the gap 40 to be cured. Thereafter, the sheet 50 for alignment position is peeled off, and a large resin relief B in which a plurality of resin reliefs 10 and 20 are joined by an adhesive 30 as shown in FIG. 13 can be obtained.

[Practical Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2009-83112

The conventional resin reliefs 10 and 20 are single-use objects, and since they are not connected in plural, the dimensional accuracy of the side faces is rough. Therefore, in the case where the resin reliefs 10, 20 are joined, the gap between the opposite side and the side surface in the joint portion must be set to a width as wide as 6 to 15 mm (which cannot be reduced) as described above.

However, the connecting portion is an area that cannot be used for printing, and the printing area is correspondingly reduced. On the other hand, there is still hope for expanding the printing area as much as possible.

In view of the above circumstances, an object of the present invention is to provide a method for producing a large-sized resin relief which can widen the width of a connecting portion and enlarge the printing area in a large-sized resin relief which connects a plurality of resin reliefs, and which is obtained by the manufacturing method. Large resin letterpress.

In order to achieve the above object, the present invention is a method for producing a larger resin relief by bonding the side faces of a plurality of resin reliefs to each other, and the first principle of the method for producing the large resin relief has the following steps: preparing a plurality of a step of determining a positional alignment calibration mark and a resin relief for determining a connection position alignment mark; and a step of determining a position and overlapping the edge portion of the connected resin relief with the alignment mark; The overlapping portion is a step of cutting the upper side of the alignment mark with the predetermined position of the overlapping position, and removing the outer portion from the cut surface; preparing a sheet for the calibration position in which the calibration mark for the calibration position is formed, And placing the resin relief on the sheet for the calibration position, and using the calibration mark on the calibration position, the determined connection position of the resin relief is overlapped by the calibration mark, so that the new sides formed by the cutting are mutually a gap, a step of setting a predetermined value within a range of 0.1 to 5.0 mm in width; and a note in the gap Bonding agent, then, by a bonding agent so that this hardening, the resin relief step integrated with one another.

Further, according to a second aspect of the present invention, a large-sized resin relief in which a plurality of resin reliefs are bonded to each other is obtained by the method of manufacturing the large resin relief, and the opposite side and the side surface of the connecting portion are opposed to each other. The interval is set to a large resin relief in the range of 0.1 to 5.0 mm.

The large-sized resin relief of the present invention is produced by judging the overlapping positions of the edge portions of the resin reliefs to be determined by the alignment marks and superimposing the overlapping positions. In this state, the overlapping portions are used for determining the overlapping positions. The calibration mark is positioned at the same time and cuts up and down along the side. Therefore, by cutting off, the new side surfaces formed with high precision and high efficiency can be precisely aligned with each other. As a result, the gap between the new side faces formed by the cutting is very narrow, and the width is 0.1 to 5.0 mm. The width of the gap is set by using the calibration mark for the calibration position of the sheet for the calibration position, and the alignment position of the resin relief is overlapped with the alignment mark, so that the operation for determining the position of the resin relief can be more easily performed. Thereafter, the adhesive is injected into the gap, and thereafter, by adhering the adhesive, the resin relief can be integrated with each other while maintaining the interval of the predetermined width, and a large-sized resin relief can be obtained.

In particular, before injecting the adhesive into the gap, the resin relief which covers one of the gaps is inclined to the other resin relief so that the gap is a V-shaped groove; after the adhesive is injected, One of the resin reliefs is flush with the other resin relief, and the V-shaped groove is closed. The gap between the adhesive is widened by the V-shaped groove, and the adhesive is injected. It becomes easy, so production efficiency is improved.

Further, since the large-sized resin relief plate of the present invention is obtained by the above-described production method, it is a material which is precisely butted to each other by a new side surface which is formed with high precision by cutting. As a result, the interval between the opposite side and the side surface in the connecting portion is very narrow from 0.1 to 5.0 mm, and the printing area is wide.

Next, an embodiment of the present invention will be described in detail in accordance with the accompanying drawings.

Fig. 1(a) is a plan view schematically showing an embodiment of a large resin relief of the present invention; and Fig. 1(b) is an enlarged view showing a cross section of a connecting portion in the circular portion C of Fig. 1(a). As shown in Figs. 1(a) and 1(b), the large resin relief A has two resin reliefs 1, 2, and the side faces 1a and 2a are bonded to each other by the adhesive 3 to be joined. Further, the interval W between the opposite side faces 1a and the side faces 2a in the joint portion is set to be in the range of 0.1 to 5.0 mm, which is narrower than the conventional interval (within the range of 6 to 15 mm). This interval W is preferably narrow from the viewpoint of making the printing area wide, and is preferably set to, for example, 0.1 to 2.0 mm. Further, in Fig. 1(a), reference numeral 11 is a calibration mark for determining the overlapping position; reference numerals 12 and 22 are calibration marks for determining the connection position; and reference numerals 13 and 23 are printing convex portions as the printing area. Further, the above-described calibration mark for determining the overlapping position with the calibration mark 11 or the like is easily understood, and is enlarged and shown in Fig. 1(a) and subsequent figures.

Thus, the large resin relief A having a very narrow connection interval W can be manufactured, for example, in the following manner.

First, as shown in FIG. 2, two resin reliefs 1, 2 formed of a transparent photosensitive resin are prepared. In the resin relief 1 of one side (the left side of FIG. 2), both end portions (upper and lower end portions in FIG. 2) of one edge portion (the right edge portion in FIG. 2) are formed with a concave portion which is formed in a cross shape in plan view. The alignment mark 11 is used to determine the overlap position; and the lateral side (the left side in FIG. 2) is formed with a calibration mark 12 for determining the connection position by arranging the four protrusions 12a in a cubic shape with a gap therebetween. Further, the resin relief 2 of the other side (the right side of FIG. 2) is formed with a calibration mark for determining the connection position at both end portions (the upper and lower end portions in FIG. 2) of one edge portion (the left edge portion of FIG. 2). The alignment mark 21 for the overlap position is determined in the same manner, and the calibration mark 22 for determining the connection position is formed on the lateral side (the right side in FIG. 2) in the same manner as the calibration mark 12 for determining the connection position. The overlap position alignment marks 11 and 21 and the connection position alignment marks 12 and 22 are formed outside the printing convex portions 13 and 23 in the printing area. In addition, the heights of the projections 21a, 12a, and 22a constituting the above-described adjustment overlapping position alignment mark 21 and the connection position alignment marks 12 and 22 are set to be equal to or lower than the height of the printing convex portions 13 and 23.

Then, as shown in FIGS. 3(a) and 3(b), the resin relief 1 which constitutes one of the resin has a cross-shaped alignment mark 11 and a resin relief 2 which determines the overlapping position. The four protruding portions 21a of the cubic shape are overlapped with each other at one edge portion of one of the resin reliefs 1 in a cross portion formed by the gap therebetween, and an edge portion of the other resin relief 2 is coincide. Further, the two-dot chain line L shown in Figs. 3(a) and (b) is shown at the position cut in the next step (refer to Fig. 4).

Next, as shown in Fig. 4, the overlapping portion is at a predetermined position (position of the two-point chain line L shown in Figs. 3(a) and (b)) of the alignment marks 11 and 21 for the determined overlapping position. On the side, use a rotary knife or the like to cut it up and down at the same time, and remove the outer part of the section. At this time, since the overlapping portions are cut at the same time, the new side faces (cut faces) 1a and 2a formed by cutting are formed with high precision, and are formed into a shape that can be closely butted against each other. Further, the blade for cutting the cutting edge or the like described above is preferably a sharp shape from the viewpoint of forming the new side faces 1a and 2a with high precision.

Thereafter, the sheet 5 for aligning the position as shown in FIG. 5 is prepared. The alignment position sheet 5 is overlapped with the resin joints 1 and 2 by the alignment marks 12 and 22 (refer to FIG. 3(a)), and the calibration position formed by the concave portion in a plan view is used. A calibration mark 52 is formed. The calibration position of the calibration position sheet 5 is provided with a calibration mark 52 corresponding to the cutting position, and the next step (refer to FIGS. 6(a) and (b)), the calibration mark is used at the calibration position. In the case where the two connection positions of the resin reliefs 1 and 2 are overlapped by the alignment marks 12 and 22, the gap 4 between the side faces 1a and 2a of the two resin reliefs 1 and 2 can be automatically set to a predetermined width. .

Then, as shown in FIGS. 6(a) and 6(b), the calibration position mark 52 for the calibration position in which the alignment position sheet 5 is cross-shaped, and the alignment position for constituting the two resin reliefs 1 and 2 are calibrated. The four protrusions 12a and 22a of the cubes 12 and 22 have the cross portions formed by the gaps, and the two resin reliefs 1 and 2 are placed on the alignment position sheet 5 in a plan view. surface. Thereby, the appropriate positions of the two resin reliefs 1 and 2 can be automatically determined, and the gap 4 between the side faces 1a and 2a of the two resin reliefs 1 and 2 can be set to be in the range of 0.1 to 5.0 mm in width. Established value.

Next, as shown in FIG. 7, the resin relief 1 which covers one of the gaps 4 is inclined, and the other resin relief 2 is inclined so that the gap 4 is a V-shaped groove. Thereafter, the adhesive 3 is injected into the V-shaped groove using a dispenser or the like. At this time, the gap between the injection bonding agent 3 is widened by the V-shaped groove, and the injection of the adhesive 3 is facilitated.

Thereafter, as shown in FIG. 8, one of the resin reliefs 1 and the other resin relief 2 are formed in the same planar shape, and the V-shaped grooves are closed. Thereby, the side faces 1a and 2a of the two resin reliefs 1 and 2 are brought into abutting state via the adhesive 3. At this time, if there is the adhesive 3 that escapes from the butted portion, it is removed by wiping it off. In addition, examples of the adhesive 3 include a photosensitive resin, a thermosetting resin, a moisture-curing resin, a solvent vaporization-curable resin, and a pressure-bonding resin. Among them, it is preferable to use quality safety. From the viewpoint of workability, the photosensitive resin having the same composition as the resin reliefs 1 and 2.

Thereafter, the adhesive 3 is cured to integrate one resin relief 1 with the other resin relief 2 . Thereafter, the sheet 5 for alignment position is peeled off by the resin reliefs 1, 2. In this way, it is possible to manufacture a large resin relief A in which the two resin reliefs 1 and 2 are joined by the adhesive 3 and the space W between the opposite side faces 1a and 2a in the connecting portion is relatively narrow in the range of 0.1 to 5.0 mm ( Refer to Figures 1(a) and (b)).

Further, in the above-described embodiment, in the method of manufacturing the large resin relief A, before the adhesive 3 is applied to the gap 4 between the two resin reliefs 1, 2, the resin relief 1 which sandwiches the gap 4 will be The other resin relief 2 is inclined so that the gap 4 becomes a V-shaped groove, and the gap 4 into which the adhesive 3 is injected is expanded. However, if the adhesive 3 can be injected in a narrow gap, the resin relief is not caused. 2 is to extend the gap 4 as described above.

Further, in the above-described embodiment, the two resin reliefs 1 and 2 are connected, but the same can be used, and the alignment marks 11 and 21 for determining the overlapping position and the alignment marks 12 and 22 for determining the connection position are formed on the edge portion of the connection. The resin relief is connected to three or more resin reliefs.

Further, the shape of the calibration mark such as the alignment marks 11 and 21 for determining the overlapping position may be a shape other than a cross shape or the like of the above-described embodiment, and may be, for example, a circular shape or the like.

Next, the embodiment will be described. However, the invention is not limited to the embodiments.

[Examples]

[Resin Letterpress]

As the connected resin relief, two sheets of resin relief of 1560 mm × 1030 mm were prepared. These resin reliefs are formed with a calibration mark for determining the overlap position and a calibration mark for determining the connection position (refer to FIG. 2).

[Example 1]

In the same manner as the production method shown in Figs. 3 to 8, a large resin relief which connects two resin reliefs was produced. In the production of the large resin relief, the position of the resin relief which cuts the edge portion is determined by using the sheet for the alignment position in which the gap between the new side surfaces formed by the cutting is set to a width of 0.1 mm. As a result, a large resin relief plate was produced, and the interval between the opposite side and the side surface in the joint portion was 0.1 mm.

[Embodiment 2]

In the first embodiment described above, the gap between the new side faces formed by cutting is set to have a width of 0.8 mm as a sheet for aligning the position. A large resin relief was produced in the same manner as in Example 1 except for the other portions. As a result, a large resin relief plate was produced, and the interval between the opposite side and the side surface in the joint portion was 0.8 mm.

[Example 3]

In the first embodiment, the gap between the new side faces formed by cutting is set to have a width of 1.8 mm as a sheet for aligning the position. A large resin relief was produced in the same manner as in Example 1 except for the other portions. As a result, a large resin relief plate was produced, and the interval between the opposite side and the side surface in the joint portion was 1.8 mm.

[Example 4]

In the first embodiment, the gap between the new side faces formed by cutting is set to have a width of 2.0 mm as a sheet for aligning the position. A large resin relief was produced in the same manner as in Example 1 except for the other portions. As a result, a large resin relief plate was produced, and the interval between the opposite side and the side surface in the joint portion was 2.0 mm.

[Example 5]

In the first embodiment described above, the gap between the new side faces formed by cutting is set to a width of 3.5 mm as a sheet for aligning the position. A large resin relief was produced in the same manner as in Example 1 except for the other portions. As a result, a large resin relief plate was produced, and the interval between the opposite side and the side surface in the joint portion was 3.5 mm.

[Embodiment 6]

In the first embodiment described above, the gap between the new side faces formed by cutting is set to have a width of 5.0 mm as a sheet for aligning the position. A large resin relief was produced in the same manner as in Example 1 except for the other portions. As a result, a large resin relief plate was produced, and the interval between the opposite side and the side surface in the joint portion was 5.0 mm.

From the results of the above-described first to sixth embodiments, it was found that a large-sized resin relief having a very narrow connection interval of 0.1 to 5.0 mm can be produced by the production method shown in Figs. 2 to 8 .

Further, in the above-described Embodiments 1 to 6, the application of the adhesive injection was not performed such that the gap between the resin reliefs was a V-shaped groove. In this case, the nozzle is spouted with an adhesive, and the end of the nozzle is filled with a very fine dispenser. In this case, the same result as above is also obtained.

[Industrial use]

The large-sized resin relief of the present invention can be used for forming an alignment film or an insulating film by a flexographic printing method on the surface of a TFT substrate or a color filter substrate used for a large-color color liquid crystal television.

1, 2, 10, 20. . . Resin letterpress

1a, 2a. . . side

3, 30. . . Adhesive

4, 40. . . gap

5, 50. . . Calibration position sheet

11, 21. . . Determine the position of the overlap with the calibration mark

12, 17, 22, 27. . . Determine the connection location with the calibration mark

12a, 21a, 22a. . . Protrusion

13, 18, 23, 28. . . Printing convex

52, 57. . . Calibration mark with calibration position

A, B. . . Large resin letterpress

C. . . Round part

L. . . Cutting position

W. . . interval

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view schematically showing an embodiment of a large resin relief of the present invention, wherein (a) is a plan view thereof, and (b) is an enlarged view of a cross section of a connecting portion of the round portion C of (a).

Fig. 2 is a plan view schematically showing two resin reliefs used for the manufacture of the large resin relief.

Fig. 3 is a view schematically showing the manufacturing steps of the large resin relief, (a) its plan view, and (b) its front view.

Fig. 4 is a front elevational view showing the manufacturing steps of the large resin relief according to Fig. 3;

Fig. 5 is a plan view schematically showing a sheet for alignment position for the manufacture of the large resin relief.

Fig. 6 is a view showing the manufacturing steps of the large resin relief according to Fig. 4 and Fig. 5, (a) being a plan view thereof, and (b) being a front view thereof.

Fig. 7 is a front elevational view showing the manufacturing steps of the large resin relief in accordance with Fig. 6.

Fig. 8 is a front elevational view showing the manufacturing steps of the large resin relief in accordance with Fig. 7.

Fig. 9 is a view schematically showing two resin reliefs for manufacturing a conventional large resin relief.

Fig. 10 is a plan view schematically showing a sheet for aligning positions for manufacturing a conventional large resin relief.

Fig. 11 is a plan view showing the manufacturing steps of a conventional large resin relief in accordance with Figs. 9 and 10.

Figure 12 is a plan view showing the manufacturing steps of a conventional large resin relief in accordance with Figure 11;

Figure 13 is a plan view schematically showing the manufacturing steps of a conventional large resin relief.

1, 2. . . Resin letterpress

11, 21. . . Determine the position of the overlap with the calibration mark

12, 22. . . Determine the connection location with the calibration mark

21a. . . Protrusion

13,23. . . Printing convex

L. . . Cutting position

Claims (3)

A method for manufacturing a large-sized resin relief plate, which comprises a method of manufacturing a larger resin relief by bonding a plurality of resin reliefs with their side surfaces bonded to each other, the method for manufacturing the large resin relief comprising the steps of: preparing a plurality of decisions at the edge portion a step of using a calibration mark and a resin relief for determining a position of the alignment mark; and a step of determining a position and overlapping the edge portion of the connected resin relief by the alignment mark; and the overlapping portion The step of determining the overlapping position with the predetermined position of the calibration mark, cutting the upper side up and down along the side surface, and removing the outer portion from the cut surface; preparing the sheet for the calibration position formed with the calibration mark for the calibration position, the resin The relief plate is placed on the sheet for the calibration position, and the calibration mark is used in the calibration position, so that the determined connection position of the resin relief is overlapped by the alignment mark, so that the gap between the new sides formed by the cutting is a step of setting a predetermined value within a range of 0.1 to 5.0 mm in width; and injecting into the gap Cements, then, by a bonding agent so that this hardening, the resin relief step integrated with one another. The method for manufacturing a large resin relief according to the first aspect of the invention, wherein before the adhesive is injected into the gap, the resin relief of one of the gaps is tilted to tilt the other resin relief. One gap becomes a V-shaped groove; after the adhesive is injected, one of the resin reliefs is formed in the same plane shape as the other resin relief, and the V-shaped groove is closed. A large resin relief plate produced by the method for manufacturing a large resin relief plate according to the first or second aspect of the patent application, wherein the side faces of the plurality of resin relief plates are bonded to each other, wherein the opposite sides of the connecting portion are opposite sides The interval from the side surface is set to be in the range of 0.1 to 5.0 mm.