WO2007034579A1

WO2007034579A1 - Method of forming masking film having partition pattern

Info

Publication number: WO2007034579A1
Application number: PCT/JP2006/301318
Authority: WO
Inventors: Masafumi Mogi; Masakazu Nakamura; Sho Katanahara
Original assignee: Alps Engineering Co, .Ltd.
Priority date: 2005-09-20
Filing date: 2006-01-27
Publication date: 2007-03-29
Also published as: TW200712702A; JP2007087615A

Abstract

[PROBLEMS] To provide a method of forming a masking film applicable to both of blasting and etching. [MEANS FOR SOLVING PROBLEMS] The method comprises: a step (A) in which a PVC sheet (1) disposed on a release paper (2) is partly cut out so as to leave given partition pattern formation parts (11), with the release paper left on the back side; a step (B1) in which a low-tack application sheet (3) is pressed-bonded to the front side of the masking sheet (1) which has been cut so as to have the partition pattern formation parts (11); a step (B2) in which the release paper (2) is stripped from the three-layered sheet material having the application sheet (3) on one side; a step (C) in which an adhesive (5) is applied to the masking sheet (1); a step (D) in which the masking sheet (1) coated with the adhesive (5) is press-bonded to a surface of a panel (7) through the adhesive (5); and a step (E) in which the application sheet (3) is stripped from the masking sheet (1) in the state of being press-bonded to the panel (7) surface.

Description

Specification

Method for forming masking film having partition pattern

Technical field

[0001] The present invention is used when generating partition walls in various display panels.

The present invention relates to a method for forming a masking film having a predetermined partition wall pattern, and particularly in the case of misalignment when the partition wall is formed using a blast method or an etching method. The present invention relates to a method for forming a masking film that can be used even if it is used.

Background art

[0002] Generally, as a method of forming partition walls in a display panel, a blast method performed by spraying a predetermined abrasive on a glass panel or the like, or etching performed by immersing a glass panel or the like in a hydrofluoric acid solution Something by law. By the way, in forming the partition walls by these methods, it is necessary to provide a masking film having a predetermined partition pattern on the surface side of the glass panel or the like in any case. As a method for forming this masking film, a method in which a photosensitive resin film is mainly applied to the surface of the glass panel and a partition pattern is formed by a photographic process in such a state can be exemplified.

Patent Document 1: Japanese Patent Laid-Open No. 11-283496

Disclosure of the invention

Problems to be solved by the invention

[0003] In this way, in a state where a masking film having a predetermined partition pattern is formed on the surface of the glass panel, the surface of the glass panel is ground by the surface side force blasting method, thereby having a predetermined pattern. A method of forming partition walls, or a method of immersing the glass panel in a hydrofluoric acid solution to form partition walls having a predetermined pattern by etching means, or by appropriately combining these blasting methods and etching methods. Examples thereof include a method of forming a partition wall. By the way, when the blasting method is used and when the etching method is used, the end portion of the partition wall pattern in the masking film is used. The required performance in the peripheral area is different. For example, when the blasting method is used, durability against the abrasive is required, while when the etching method is used, it is required to ensure the adhesion of the masking film terminal portion. A method for forming a masking film having a partition wall pattern that can cope with such a state in which different performances (functions) are required, that is, blast processing, and etching treatment with hydrofluoric acid solution or the like. It is an object (problem) of the present invention to provide the most suitable method for the above.

Means for solving the problem

[0004] In order to solve the above-mentioned problems, the following measures are taken in the present invention. That is, in the first invention as claimed in claim 1, with respect to the method of forming a masking film having a predetermined partition pattern on the panel surface, the masking film has a predetermined thickness and a predetermined adhesion. A masking sheet forming step of cutting out a PVC sheet formed with a release paper through an agent using a predetermined cutting means so as to have a predetermined partition pattern with the release paper remaining on the back side; A step of crimping an application sheet having a low adhesion performance to the surface side of the masking sheet cut out to have a predetermined partition pattern in this way, and in this way, sandwiching the masking sheet between them on one side Has a three-layer sheet material force with an application sheet and a release paper on the other side, and a process for peeling the release paper and thus releasing the release paper. With the masking sheet in the peeled state, the surface of the release paper that has been peeled off is placed facing the front side of the specified panel, and the masking sheet is sandwiched between the panel and the application sheet. A process of crimping using a predetermined roll crimping means, a process of peeling the application sheet in a state where the masking sheet was crimped on the panel surface in this way, and a force were used.

[0005] Further, in the second invention as claimed in claim 2, the method for forming a masking film having a predetermined partition pattern on the panel surface has a predetermined thickness provided on the release paper. A masking sheet forming step of cutting a PVC sheet by using a predetermined cutting means so as to have a predetermined partition pattern with the release paper remaining on the back side, and thus cutting out to have a predetermined partition pattern. Surface side of the masking sheet A process in which an application sheet having low adhesion performance is crimped onto the sheet, and in this way, a masking sheet is sandwiched between the application sheet on one side and a release paper on the other side. A step of peeling the release paper from the layered sheet material and applying an acrylic resin adhesive or butadiene rubber adhesive to the masking sheet in a state where the release paper has been peeled in this way; and A laminated sheet material composed of a masking sheet and an application sheet coated with a predetermined adhesive is placed with the surface coated with the predetermined adhesive facing a predetermined panel surface side, and the panel and the application sheet A step of crimping using a predetermined roll crimping means with the masking sheet sandwiched between In this manner, the application sheet was peeled off in a state where the masking sheet was pressure-bonded on the panel surface.

[0006] Further, in a third invention which is the invention described in claim 3, the present invention relates to a method for forming a masking film having the predetermined partition wall pattern described in either claim 1 or claim 2. Thus, as the cutting means, a push-type cutting method in which a pinnacle-type push-type cutter is used is adopted.

[0007] Further, in a fourth invention which is the invention according to claim 4, the present invention relates to a method for forming a masking film having a predetermined partition wall pattern according to either claim 1 or claim 2. Thus, the crimping step by the roll crimping means is performed at room temperature. The invention's effect

[0008] According to the first invention, a common masking film that can be applied to both the blasting method and the hydrofluoric acid solution etching method can be obtained efficiently. In particular, in the present invention, in a state where a PVC sheet or the like forming a masking film is pasted on the panel surface, it is compared with a conventional method or the like that is directly cut out using a cutting means such as a cutter. The panel surface is no longer damaged by the cutting blade. As a result, there is no possibility of causing notch cracks or the like on the panel surface, and the productivity of panels having partition walls can be improved. In the second invention as well, a common masking film that can be applied to both the blasting method and the etching method using a hydrofluoric acid solution can be efficiently obtained. It became possible to. In particular, in the present invention, the attachment of the PVC sheet forming the masking film onto the panel surface is performed with an acrylic resin adhesive or butadiene rubber adhesive, The masking coating (masking sheet) is securely adhered to the panel surface, and the masking coating (masking sheet) bonded in this way is smoothly removed (removed) after the partition formation process. It came to be performed. As a result, the productivity of panels having partition walls can be improved.

[0009] Further, according to the third invention, since the pinnacle-type pressing blade is used as the cutting means, blade spilling or the like does not occur in the cutting process, and the masking sheet cutting process can be performed smoothly and It has become possible to perform efficiently. According to the fourth aspect of the invention, when the masking sheet is attached to the panel surface, an acrylic resin adhesive is used, a roll crimping means is used, and the temperature during the crimping operation is further increased. Since the room temperature is about 20 ° C, there is no risk of bubbles on the bonding surface between the panel and the masking sheet, and the shape accuracy of the partition is reduced when forming the partition pattern on the panel surface. It became possible to improve.

BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the present invention will be described with reference to FIGS. 1 to 3. An advantage of the present embodiment relates to a method for forming a masking film having a predetermined partition wall pattern on the panel surface. The specific process is as follows. The PVC sheet 1 having a predetermined thickness provided on the release paper 2 as shown in FIG. 1 is used, and the predetermined partition pattern forming portion 11 is formed with the release paper remaining on the back side. A masking sheet forming step (A) to cut out using a predetermined cutting means 9 to have a low adhesive performance on the surface side of the masking sheet 1 cut out to have a predetermined partition pattern forming portion 11 in this way A step (B) in which the application sheet 3 having pressure is pressed, and thus the application sheet 3 is held on one side with the masking sheet 1 sandwiched therebetween, and the release paper 2 is placed on the other side. The three-layer sheet material force in the state of having the above-mentioned release paper 2 (B), and thus the release paper

2

Step (C) of applying the predetermined adhesive 5 to the masking sheet 1 in the state 2 is peeled off, and the masking sheet 1 and the application with the predetermined adhesive 5 applied in this way (C). -A laminated sheet material consisting of a sheet 3 is placed with the surface coated with the adhesive 5 facing the surface of the predetermined panel 7 and the masking sheet 1 between the panel 7 and the application sheet 3 A step (D) of crimping with a predetermined roll crimping means 6 in a state where the sheet is sandwiched, and a step of peeling the application sheet 3 in a state where the masking sheet 1 is thus crimped on the surface of the panel 7 (E) And the basic principle is that power can be used.

In the present embodiment, as a cutting means for generating the partition wall pattern forming portion 11 of the masking sheet 1, in the present embodiment, for example, a pinnacle type push as shown in FIG. A mold cutter was used. By the way, such a pinnacle-type push-type cutter 9 is designed to form a double-edged blade with a partial force of the cutting edge 99 at its tip, for example, an inclination angle of about 40 ° as shown in FIG. By using such a pinacle-type cutting blade 9, a cut surface is formed at an end portion of the partition wall pattern forming portion 11 of the masking sheet 1 with an inclination angle of about 40 ° as shown in FIG. 2, for example. The Rukoto. In such cutting, the cutting edge 99 of the cutting tool 9 comes into contact with the release paper 2 having a relatively soft surface, so that there is no spillage of the cutting edge 99, etc. The cutting operation can be continuously performed. Then, in a state where such a cutting operation is performed, a predetermined partition wall pattern is formed by removing the remaining portion 19 that is not the partition wall pattern forming portion 11 as shown in FIG. Will be.

Next, in order to protect the masking sheet 1 in the subsequent work, the application sheet 3 is provided on the surface side of the masking sheet 1 having the same strength as the PVC sheet on which the partition wall pattern is formed. (B in Fig. 1). This application sheet 3 is a commercially available general sheet, which also serves as a sheet-like member having a predetermined low adhesive property. Note that the adhesive strength of the application sheet 3 needs to be slightly stronger (strong) than the adhesive strength between the release paper 2 and the masking sheet 1 made of PVC. In such a state where the application sheet 3 is placed on the masking sheet 1, the masking sheet 1 and the application sheet 3 are crimped using a predetermined crimping means (see (B) in FIG. 1). [0013] In the state where the three-layered sheet-like member is formed in this way, the release paper 2 is peeled off (see (B) in Fig. 1), and the release paper 2 is peeled off (removed). (Muskin side)

2

Apply a predetermined adhesive 5 on the surface of the sheet 1 (see (C) of FIG. 1). As the adhesive 5, in order to perform the removal operation smoothly and efficiently when the masking sheet 1 is removed after the partition walls have been formed by blasting or the like, this implementation is performed. For example, an acrylic resin adhesive or a butadiene rubber adhesive is used. Further, a masking sheet 1 with an adhesive that is provided in the state of a sheet material in advance on the back side of the masking sheet 1 made of the above PVC sheet may be used. In such a case, it is not necessary to apply V or adhesive in the process.

[0014] Next, a state in which a predetermined adhesive 5 such as an acrylic resin adhesive is applied to one surface side of the masking sheet 1 in this manner is a panel 7 such as a glass panel. The masking sheet 1 is pressure-bonded onto the surface of the panel 7 through the adhesive 5. In this embodiment, the crimping operation is performed by using, for example, a roll crimping means 6 as shown in FIG. That is, with the three-layered material consisting of the application sheet 3, masking sheet 1, and panel 7 as shown in FIG. Try to crimp continuously. As a result, it is possible to completely expel air bubbles that may be present in the adhesive 5 that is interposed between the masking sheet 1 and the panel 7.

[0015] In this manner, in a state where the masking sheet 1 is attached to the surface of the panel 7 via the adhesive 5, the application sheet 3 is peeled off to cover the masking sheet 1 (see FIG. (See 1 (E)). As a result, a state in which the masking sheet 1 having the predetermined partition pattern forming portion 11 is attached on the surface of the panel 7 is formed (see FIG. 3).

Next, a panel 7 having a predetermined partition pattern forming portion 11 formed in this way on the surface will be described with reference to FIG. This is a glass panel or other such panel 7 that has an acrylic resin adhesive or butadiene rubber adhesive on the surface side. The partition wall pattern forming portion 11 forming the PVC masking sheet 1 is firmly bonded via the adhesive 5. The end portion of the partition wall pattern forming portion 11 thus provided on the surface of the panel 7 has an inclination angle of about 40 ° as shown in FIG. As a result, the tip portion 111 of the terminal portion is in a state of being strongly crimped in the crimping process ((D) in FIG. 1). Therefore, when the surface side force is also blasted with such a masking sheet 1, the tip end portion 111 of the end portion of the partition wall pattern forming portion 11 is turned up. There is nothing to say. Further, even when such a member (shown in FIG. 3) is etched in a hydrofluoric acid solution, the hydrofluoric acid solution or the like may permeate from the tip 111. Nah ...

As described above, the panel member having the masking film formed in the process based on the present embodiment on its surface side can be directly applied to the blasting process, and can be etched with a hydrofluoric acid solution or the like. It can be applied to 卩. As described above, the present embodiment can be adopted in either the blasting method or the etching method, and the combination of the blasting method and the etching method. In the case where the construction method is adopted, excellent performance will be exhibited. As a result, productivity can be improved.

[0018] In the present embodiment, the step of pressing the masking sheet 1 onto the surface of the panel 7 (see (D) in Fig. 1) is performed by the roll pressing means 6, and this step is also performed. Since the operation is performed at room temperature around room temperature or at room temperature, it is possible to remove bubbles that may be present in the crimping part, which is caused by the presence of the bubbles during the blasting process. It is possible to avoid the occurrence of cracks in the partition wall. As a result, it becomes possible to improve the yield rate of the partition forming operation, and to improve productivity. In addition, after the predetermined partition wall is formed in this way, the masking sheet 1 can be easily removed (removed) by an operator's manual work, and in this way. Since the masking sheet 1 is made of PVC sheet, it can be easily disposed of by incineration. Therefore, compared to conventional photoresist material processing, etc. Less impact on the environment.

Brief Description of Drawings

FIG. 1 is a process explanatory view showing the overall configuration of the present invention.

FIG. 2 is an explanatory view showing a cutting process by a pinnacle-type cutting tool that forms the main part of the present invention.

FIG. 3 is a cross-sectional view showing the structure of a panel having a partition pattern on the surface produced according to the present invention.

Explanation of symbols

[0020] 1 Masking sheet

11 Bulkhead pattern forming part

111 Tip

19 Rest

2 Release paper

3 Application sheet

5 Adhesive

6 Roll crimping means

7 Panel

9 Cutting means (Pinnacle type push cutter)

Claims

The scope of the claims

[1] A PVC sheet having a predetermined thickness and laminated with a release paper via a predetermined adhesive has a predetermined partition pattern with the release paper remaining on the back side. A masking sheet forming process that cuts out using a predetermined cutting means, and an application sheet having a low-adhesive performance is pressure-bonded to the surface side of the masking sheet cut out to have a predetermined partition pattern in this way. And, in this way, peeling the release paper from the three-layer sheet material with the application sheet on one side and the release paper on the other side with a masking sheet in between In this way, the masking sheet with the release paper peeled off is placed with the release paper peeled side facing the surface of the predetermined panel and the panel and the above The step of crimping using a predetermined roll crimping means with the masking sheet sandwiched between the application sheet and the application sheet in a state in which the masking sheet is thus crimped onto the panel surface. A method of forming a masking film having a predetermined partition wall pattern on the panel surface, characterized by: a peeling step;

[2] Formation of a masking sheet formed by cutting a PVC sheet having a predetermined thickness provided on the release paper using a predetermined cutting means so as to have a predetermined partition pattern with the release paper remaining on the back side A process, a process of crimping an application sheet having low adhesion performance to the surface side of the masking sheet thus cut out so as to have a predetermined partition pattern, and in this way, sandwiching the masking sheet in between The release sheet is peeled off from the three-layer sheet material having the application sheet on the side and the release sheet on the other side, and the masking sheet in the state where the release sheet is peeled in this way. At the same time, a step of applying an acrylic resin adhesive or a butadiene rubber adhesive, and a masking sheet coated with a predetermined adhesive as described above. A laminated sheet material composed of application sheets is placed with the surface to which the predetermined adhesive is applied facing the predetermined panel surface side, and the masking sheet is sandwiched between the panel and the application sheet. A step of pressure-bonding using a predetermined roll pressure bonding means, a step of peeling the application sheet in a state where the masking sheet is pressure-bonded on the panel surface in this way, and a predetermined force on the panel surface. Bulkhead flap A method for forming a masking film having a film.

[3] In the method for forming a masking film having the predetermined partition wall pattern according to any one of claims 1 and 2, a push-type cutting method in which a pinnacle-type push cutter is used as the cutting means. A method for forming a masking film having a predetermined partition pattern on the panel surface, characterized in that

[4] In the method of forming a masking film having the predetermined partition wall pattern according to any one of claims 1 and 2, the crimping step by the roll crimping means is performed at room temperature. A method of forming a masking film having a predetermined barrier rib pattern on a panel surface.