JP2014200902A - Manufacturing method of print mask material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable low-cost and on-demand production of a print mask material for a complicated print pattern, by forming a through opening with a complicated shape, only by mechanical processing of a sheet material.SOLUTION: A diamond end mill 7 with a diamond blade 701 fixed on the tip of a shank is used as a tool for forming a through opening on a sheet material 100. The through opening with a complicated shape is formed by: digging a shallow recess with a desired shape by laterally moving the diamond end mill 7 while spraying compressed air around the blade 701 of the rotatingly driven diamond end mill 7; then pressing the blade 701 more into the sheet material 100; and then performing the process of digging the recess deeper by laterally moving the diamond end mill 7 while spraying compressed air around the blade 701.

Description

  The present invention relates to a printing mask material manufacturing method for manufacturing a printing mask material by forming a plurality of through openings for printing patterns in a sheet material.

  2. Description of the Related Art Conventionally, a printing mask material manufacturing method for manufacturing a printing mask material for printing paste such as cream solder or ink on a substrate to be printed such as a printed circuit board is known. In this printing mask material manufacturing method, a printing mask material is manufactured by forming a plurality of through openings for a printing pattern by excimer laser processing on a sheet material. In such a printing mask material manufacturing method, a small number of various types of on-demand production can be realized by forming a printing pattern consisting of a plurality of through openings only by machining, regardless of chemicals such as a developer or an etching solution. Can do.

  However, the excimer laser device is a very expensive machine, and a large amount of capital investment is required. Therefore, it is difficult to reduce the unit price of the printing mask material.

  On the other hand, as a printing mask material manufacturing method, the one described in Patent Document 2 is also known. In this printing mask material manufacturing method, a printing mask material is manufactured by forming a plurality of through openings for a printing pattern by drilling a sheet material. Also in such a printing mask material manufacturing method, a small amount of various types of on-demand production can be realized by forming a printing pattern including a plurality of through openings only by machining. In addition, since the equipment investment is a machine that is less expensive than the excimer laser device such as a machining center, the unit price of the printing mask material can be reduced compared with the case where the excimer laser device is used.

  However, this printing mask material manufacturing method has a problem that only a simple print pattern including only a perfect circular through-opening can be formed as a plurality of through-openings. Specifically, the through-opening obtained by drilling a rotating drill blade is a perfect circle, and it is difficult to obtain a complicated-shaped through-opening by using a drill. For example, even if the drill blade penetrated through the sheet material is moved in the lateral direction to try to process the penetration into a desired shape, the drill blade is not suitable for such lateral cutting. It breaks or disturbs the shape of the through opening. For this reason, only a simple printing pattern including only a perfect circular through opening obtained by simply perforating a sheet material can be formed.

  Therefore, the present inventors conducted an experiment in which a through-opening having a complicated shape was formed in a sheet material using a diamond end mill as a through-opening processing tool. The diamond end mill is obtained by fixing a flat blade portion made of diamond to a position eccentric from the rotational axis position of the shank at the tip of a rod-shaped metal support without a blade called a shank. Widely used in fields such as engraving because it is suitable for cutting a workpiece in a horizontal direction while moving a rotating flat blade portion in the horizontal direction along the surface direction of the workpiece. . Using such a diamond end mill, a concave portion having a complicated shape is dug into the sheet material, and then the concave portion is dug further deeply while moving the blade in the lateral direction within the concave portion. An experiment to finish it was conducted. Then, when digging a recessed part deeply, the processing waste generated in the recessed part by cutting was immediately wound around the blade part. In addition, the processing scrap wound around the blade part significantly impedes cutting of the sheet material and generates a lot of burrs, or the blade is folded by applying excessive force to the blade. It was found difficult to form the opening.

  If a spiral groove such as a drill blade is formed in a diamond blade, machining waste generated in the recess can be discharged out of the recess by the rotational movement of the spiral groove. However, since diamond is very hard and easily cracked, the current technology cannot form a spiral groove in a diamond blade. If the blade is made of an alloy instead of diamond, it is possible to form a spiral groove, but in cutting work that moves the blade in the lateral direction, a large force is applied to the blade, Alloy blades wear out quickly. For this reason, it is necessary to frequently replace the end mill to which the alloy blade portion is fixed, and it becomes difficult to realize cost reduction.

  The present invention has been made in view of the above background, and an object of the present invention is to provide the following printing mask material manufacturing method. That is, by providing a printing mask material manufacturing method capable of forming on-demand production of a printing mask material having a complicated printing pattern at low cost by forming a through-hole having a complicated shape only by machining the sheet material. is there.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a printing mask material manufacturing method for manufacturing a printing mask material by forming a plurality of through openings for a printing pattern in a sheet material. A diamond end mill in which a diamond blade is fixed to the tip of a support metal fitting as a tool for the rotation of the diamond end mill while the fluid is sprayed around the blade of the diamond end mill that is rotationally driven. The surface of the diamond end mill is moved to the surface of the surface of the sheet material, and then the blade is pressed into the sheet material, and then the diamond end mill is applied to the surface of the blade while spraying fluid around the blade. The through-opening is formed by performing an operation of moving in a direction to increase the depth of the recess. Than is.
The invention according to claim 2 is the printing mask material manufacturing method according to claim 1, wherein the support metal fitting is provided with a taper that is thickened from the tip side toward the root side at the tip part. It is what.
Further, the invention according to claim 3 is the printing mask material manufacturing method according to claim 1 or 2, wherein when the surface of the sheet material is cut to dig a shallow concave portion having a complicated shape, the periphery of the blade portion is also provided. It is characterized by spraying fluid.
According to a fourth aspect of the present invention, in the printing mask material manufacturing method according to any one of the first to third aspects, a plurality of nozzles for spraying fluid are disposed around the diamond end mill. A fluid is selectively sprayed toward the blade portion from a nozzle that is substantially opposite to the traveling direction along the sheet surface of the diamond end mill.
According to a fifth aspect of the present invention, in the printing mask material manufacturing method according to any one of the first to fourth aspects, the diamond end mill is based on a result of measuring a cutting load when the sheet material is cut by the diamond end mill. It is characterized by determining the replacement period.
The invention according to claim 6 is the printing mask material manufacturing method according to any one of claims 1 to 5, wherein the sheet material has a higher hardness than the substrate sheet on the surface of the substrate sheet made of plastic. What coat | covers the surface layer which consists of material is used, It is characterized by the above-mentioned.
The invention according to claim 7 is characterized in that, in the printing mask material manufacturing method according to any one of claims 1 to 5, the support metal fitting is made of cemented carbide.

  In these inventions, when the depth of the recess is increased by moving the blade end of the diamond end mill laterally in a shallow recess cut into a plastic sheet material, it rotates within the recess. Spray fluid around the blade. Thereby, it is possible to satisfactorily form a through opening having a complicated shape by the diamond end mill by blowing off the machining waste generated in the concave portion to the outside of the concave portion with a fluid and suppressing the wrapping of the processing waste around the blade portion. In such a configuration, a small number of various types of on-demand production can be realized by forming a through-hole having a complicated shape only by machining. Moreover, the capital investment is much cheaper than the excimer laser device, such as the cheap engraving machines on the market, so the cost can be reduced compared to using the excimer laser device. can do. Furthermore, since a diamond end mill having a diamond blade portion having excellent durability is used, it is possible to realize cost reduction compared to the case of using an alloy end mill that wears quickly. As a result, a through-hole having a complicated shape can be formed only by machining the sheet material, and a print mask material having a complicated print pattern can be produced on-demand at low cost.

  In particular, in the invention according to claim 2, by using a support metal fitting having a taper that becomes thicker from the front end side toward the base side, the processing waste that has come out of the recess is removed from the support metal fitting. Move along the taper of the tip. Thereby, generation | occurrence | production of the return of the processing waste discharged | emitted from the recessed part in a recessed part can be suppressed by disperse | distributing a processed waste well around a recessed part in the sheet | seat surface direction.

  In particular, in the invention according to claim 3, the amount of machining waste in the recess when the shallow recess is obtained by spraying fluid around the blade even when the shallow recess is dug into the sheet material. Reduce. Thereby, the generation | occurrence | production of the burr | flash in the switching initial stage at the time of switching from the operation which digs a shallow recessed part to the operation which digs a recessed part deeper can be suppressed more.

  In particular, in the invention according to claim 4, by spraying fluid from the nozzle located in the opposite direction to the blade portion moving in the lateral direction toward the blade portion, in the traveling direction of the blade portion moving in the lateral direction. Regardless, the processing waste can be discharged from the recess well.

  In particular, in the invention according to claim 5, the diamond end mill is replaced at an appropriate timing by appropriately grasping the timing of the end of the life of the blade portion of the diamond end mill as the cutting load increases. Thereby, generation | occurrence | production of the burr | flash by continuing using a diamond end mill beyond a lifetime can be avoided.

  In particular, in the invention according to claim 6, by covering the surface of the plastic base material of the sheet material with a surface layer having a hard hardness that hardly generates burrs, in addition to the difficulty of generating burrs on the surface layer. Then, the surface layer urges cutting of the processing waste of the base sheet from the sheet body. Thereby, generation | occurrence | production of a burr | flash can be suppressed more.

  In particular, in the invention according to claim 7, the life of the support metal fitting can be increased by using a material made of cemented carbide as the support metal fitting as compared with the case of using a metal made of a general metal. .

The perspective view which shows the processing machine used for the printing mask material manufacturing method which concerns on embodiment. The side view which shows the diamond end mill used for the printing mask material manufacturing method. The side view which shows the front-end | tip part of the diamond end mill. The side view which shows the same front-end | tip part from the angle different from FIG. The front view which shows the blade part of the diamond end mill from the front end side. The expansion perspective view which shows the diamond end mill and spray nozzle in the middle of processing the through-opening in a sheet | seat material. The schematic diagram which shows the sheet material in the middle of forming the recessed part with the printing mask material manufacturing method with a blade part. The top view which shows the printing mask material in which the through-opening was formed by the printing mask material manufacturing method. The schematic diagram which shows the sheet material in the middle of forming the recessed part with the printing mask material manufacturing method of a comparative example with a blade part. The top view which shows the printing mask material in which the through-opening was formed by the printing mask material manufacturing method of a comparative example. The graph which shows an example of the characteristic of the cutting load measured by 3 component force link. The expanded sectional view which shows the sheet material used with the printing mask material manufacturing method which concerns on embodiment. The top view which shows the state which looked at the end mill fixed head used with the printing mask material manufacturing method which concerns on an Example, and its surrounding structure from the perpendicular direction lower side.

Hereinafter, an embodiment of a printing mask material manufacturing method to which the present invention is applied will be described.
FIG. 1 is a perspective view showing a processing machine 1 used in a printing mask material manufacturing method according to an embodiment. This processing machine 1 is an improvement of an engraving machine widely available on the market. A workpiece support 2 is formed on the upper surface of the stationary stage 9, and a plastic sheet material 100 as a workpiece is fixed on the workpiece support 2. As a method for fixing the sheet material, conventionally known methods such as clamp fixing, screw fixing, and suction fixing can be employed.

  The stage 9 supports the arm 3 so as to be movable in the x direction. The arm 3 extends in the y direction, which is the longitudinal direction of the stage 9, and has one end in the longitudinal direction of the stage 9 so as to face the work support 2 at a predetermined distance above the work support 2. And the other end. The head holding stage 4 is supported so as to be movable in the y direction. The head holding stage 4 holds the end mill fixed head 5 so as to be movable in the Z direction along the thickness direction of the sheet material 100 while rotating the end mill fixed head 5. Furthermore, the air blowing head 6 is held.

  A diamond end mill 7 to be described later is fixed to the tip of the end mill fixing head 5. A spray nozzle 8 is fixed to the tip of the air spray head 6.

  FIG. 2 is a side view showing the diamond end mill 7. The diamond end mill 7 has a pen-like shape as a whole as shown in the figure. Most of this is occupied by the shank 700 as a support fitting. The shank 700 made of carbide includes a cylindrical main body 700b and a conical front end 700a formed at the front end thereof, and a rear end (the right end in the figure) of the main body 700b. Is gripped and fixed to the end mill fixing head 7. The length of the diamond end mill 7 is, for example, about 40 [mm].

  As shown in FIGS. 3 and 4, the conical tip 700a has a conical taper that gradually narrows from the root side (right side in the figure) toward the tip side. A diamond blade 701 is fixed. As shown in FIG. 4, the blade portion 701 is fixed at a position eccentric with respect to the position of the rotation center axis of the shank 700.

  FIG. 5 is a front view showing the blade portion 701 from the tip side. The diamond blade portion 701 includes a fixed portion 701b fixed to the tip portion 700a of the shank 700, and a blade edge 701a for cutting the workpiece by rubbing against the workpiece. The dotted circle in the figure indicates the rotation trajectory of the cutting edge 701a. In the diameter direction of the circle, the clearance C, which is a region where the blade edge 701a does not exist at all, is, for example, about 0.025 [mm]. The length of the region where the blade edge 701a exists in the diameter direction is, for example, about 0.16 [mm].

  As shown in FIG. 3, the taper of the tip 700a of the shank 700 has two steps: a taper on the tip side and a taper on the rear end side that is more inclined (inclination with respect to the rotation axis) than this. . The taper angle on the rear end side is, for example, about 15 [°] with respect to the rotation axis.

  In FIG. 1, compressed air as a fluid is blown out from an air blowing head 8 fixed to the tip of an end mill fixed head 7. The blown-out compressed air is blown to the blade portion (701) of the diamond end mill 7 fixed to the end mill fixed head 7 and the periphery thereof.

  Based on NC data sent from a personal computer (not shown), the processing machine 1 moves the sheet material 100 in accordance with the NC data by moving the diamond end mill 7 in the x, y, and z directions. Cutting in the order. The movement of the diamond end mill 7 in the x direction is realized by the movement of the arm 3 on the stage 9 in the x direction. Further, the movement of the diamond end mill 7 in the y direction is realized by the movement of the head holding stage 4 on the arm 3 in the y direction. Further, the movement of the diamond end mill 7 in the z direction is realized by the movement of the end mill fixed head 5 on the head holding stage 4 in the z direction.

  In the printing mask material manufacturing method according to the embodiment, a through-hole having a complicated shape that is not a perfect circle is formed on a plastic (for example, PET) sheet material as follows. For example, a description will be given of an example in which a long hole-shaped through opening is formed. First, a shallow concave portion having a rotating long hole shape is formed by a diamond end mill 7 that is driven to rotate. Specifically, the diamond end mill 7 is moved along the surface direction of the sheet material 100 while the surface of the sheet material 100 is shallowly cut by the blade portion 701 of the diamond end mill 7 that is rotationally driven, so that a long hole-shaped recess is formed. Dig shallowly. At this time, as shown in FIG. 6, the compressed air blown from the blowing nozzle 8 is blown to the blade portion 701 and its surroundings during cutting. Accordingly, it is possible to prevent the processing waste from being blown around the blade portion 701 by blowing the processing waste from the shallow concave portion during the cutting process. By blowing away the machining waste immediately after the cutting, the size of the blown machining waste becomes about 0.06 [mm]. On the other hand, if the processing waste is not blown off, the size of the processing waste becomes about 0.2 [mm], and the lump is easily wound around the blade portion 701.

  When the long hole-shaped shallow concave portion is formed, the blade portion 701 is pushed further into the sheet material 100 by the movement of the diamond end mill 7 in the z direction. And while blowing air around the blade part 701, the diamond end mill 7 is moved in the sheet surface direction along the long hole to increase the depth of the concave part. At this time, as shown in FIG. 7, by blowing air around the blade portion 701 rotating in the recess, the processing waste generated in the recess is blown out of the recess so that the processing waste is wound around the blade portion 701. suppress. Thereby, it is possible to satisfactorily form a through-hole having a complicated shape by the diamond end mill 7. As shown in FIG. 8, it is possible to form a beautiful long hole-shaped through opening 100a having almost no burr.

  As described above, in the printing mask material manufacturing method according to the embodiment, a small number of various types of on-demand production can be realized by forming the through-opening 100a having a complicated shape only by machining. Moreover, the capital investment is much cheaper than the excimer laser device, such as the cheap engraving machines on the market, so the cost can be reduced compared to using the excimer laser device. can do. Furthermore, since the diamond end mill 7 having the diamond blade portion 701 having excellent durability is used, it is possible to realize cost reduction as compared with the case of using an alloy end mill that wears quickly. As a result, the through-opening 100a having a complicated shape can be formed on the plastic sheet material 100 only by machining, and a print mask material having a complicated print pattern can be produced on-demand at low cost.

  In addition, when digging a recessed part deeper, if air is not sprayed around the blade part 701, as shown in FIG. 9, a lot of processing waste will remain in the recessed part. And since the processing waste collected in the concave portion is wound around the blade portion 701 and the cutting processing is remarkably hindered by the wound processing waste, as shown in FIG. It will be generated. Further, since the processing waste applies an excessive force to the blade portion 701, the blade portion 701 is frequently broken.

  As shown in FIGS. 3 and 4, the tip 700 a of the shank 700 is provided with a taper that becomes thicker from the tip side toward the root side. By this taper, the machining waste that has come out of the recess during cutting is moved along the taper, so that the machining waste is well scattered around the recess in the sheet surface direction. Thereby, since the processing waste discharged from the concave portion is not returned to the concave portion, the winding of the processing waste around the blade portion 701 can be more reliably suppressed.

  Moreover, in the printing mask material manufacturing method according to the embodiment, as described above, not only when the recessed portion formed shallowly is dug deeper, but also when the shallow recessed portion is dug, the blade portion 701 and its surroundings are also provided. Air is blowing. In such a configuration, by reducing the amount of processing waste in the recess when the shallow recess is obtained, more burrs are generated at the initial switching time when switching from the operation of digging the shallow recess to the operation of digging the recess deeper. Can be suppressed.

  The processing machine 1 is provided with a cutting load measuring means (not shown) for measuring a cutting load when the sheet material 100 is cut by the diamond end mill 7. As such cutting load measuring means, for example, a known three-component force link can be exemplified. The three-component force link is provided on the head base side of the rotating end mill gripping portion in the end mill fixed head 5 so that the end mill fixed head 5 is supported by the three component force link. Thereby, for example, as shown in FIG. 11, it is possible to measure cutting loads in the x direction, the y direction, and the z direction applied to the diamond end mill 7.

  Moreover, you may use the ammeter which measures the consumption current of the drive motor for exhibiting the rotational drive force of an end mill holding part as a cutting load measurement means. This is because the current consumption increases as the cutting load increases, so that the current consumption can be detected as an alternative characteristic of the cutting load.

  When the blade portion 701 deteriorates due to wear, the cutting load increases, and burrs are easily generated due to a decrease in cutting ability. Therefore, the diamond end mill 7 is replaced with a new one when the cutting load is increased to some extent as the end of life of the blade 701. Thereby, by exchanging the diamond end mill 7 at an appropriate timing, it is possible to suppress the occurrence of burrs (decrease in yield) due to inappropriate use of the diamond end mill 7 for a long period of time.

  Moreover, in the printing mask material manufacturing method which concerns on embodiment, as the sheet | seat material 100 is shown by FIG. 12, the hardness higher than the base material sheet 101 on the surface of the base material sheet 101 which consists of plastics (for example, PET). The surface layer 102 made of the above material (for example, carbon) is used. In such a sheet material 100, the surface layer 102 urges cutting of the processing waste of the base sheet 101 from the sheet body, in addition to the surface layer 102 hardly generating burrs due to high hardness. Thereby, generation | occurrence | production of a burr | flash can be suppressed more.

  Further, in the printing mask material manufacturing method according to the embodiment, the shank 700 of the diamond end mill 7 is made of cemented carbide, so that the shank 700 is compared with the case of using a general metal. It is possible to extend the service life.

Next, the printing mask material manufacturing method of the Example which added the more characteristic structure to the printing mask material manufacturing method which concerns on embodiment is demonstrated. Unless otherwise specified below, the configuration of the printing mask material manufacturing method according to the example is the same as that of the embodiment.
FIG. 13 is a plan view of the end mill fixed head 5 used in the printing mask material manufacturing method according to the embodiment and the surrounding configuration viewed from the lower side in the vertical direction. As shown in the drawing, a plurality (eight) of air blowing heads 6 are arranged around the end mill fixed head 5. The spray nozzles 8 of these air spray heads 6 are located around the diamond end mill 7 fixed to the end mill fixed head 5.

  When the diamond end mill 7 is moved in the lateral direction, the control unit of the processing machine 1 compresses the compressed air from the spray nozzles 8 that are substantially opposite to the traveling direction of the diamond end mill 7 among the eight spray nozzles 8. The control to selectively blow out is performed. For this control, the processing machine 1 includes eight electromagnetic valves for individually turning on and off the compressed air blowing from the eight blowing nozzles 8.

In such a configuration, regardless of the traveling direction, the compressed air is blown from the opposite direction to the blade portion 701 moving in the lateral direction during processing of the through-opening, regardless of the traveling direction of the blade portion 701. The processing waste can be discharged from the recess well. In addition, as a fluid sprayed to the blade end portion (701) of the diamond end mill 7 or the periphery thereof, an antioxidant, nitrogen gas (N ₂ ), pure water, or the like may be used instead of compressed air.

What has been described above is merely an example, and the present invention has a specific effect for each of the following modes.
[Aspect A]
Aspect A is a printing mask material manufacturing method for manufacturing a printing mask material by forming a plurality of through openings (for example, through openings 100a) for a printing pattern in a sheet material (for example, sheet material 100), and forming the through openings. As a tool for this purpose, a diamond end mill having a diamond blade portion fixed to the tip of a support fitting (for example, shank 700) is used, and a fluid is provided around the blade portion (for example, blade portion 701) of the diamond end mill that is rotationally driven. The diamond end mill is moved in the direction of the surface of the sheet material while digging shallowly into the concave portion of the desired shape, and the blade portion is pushed further into the sheet material, and then the periphery of the blade portion The diamond end mill is moved in the direction of the surface while spraying a fluid to increase the depth of the recess. It is characterized in that to form the through-opening to perform operations that.

[Aspect B]
Aspect B is characterized in that, in Aspect A, the support fitting is provided with a taper that is thickened from the tip side toward the root side at the tip portion.

[Aspect C]
Aspect C is characterized in that, in Aspect B or A, fluid is sprayed around the blade portion even when the surface of the sheet material is cut to dig a shallow concave portion having a complicated shape.

[Aspect D]
Aspect D includes a plurality of nozzles (for example, spray nozzle 8) for spraying fluid (for example, air) in any one of aspects A to C around the diamond end mill. A fluid is selectively sprayed toward the blade portion from a nozzle that is substantially opposite to the traveling direction along the sheet surface.

[Aspect E]
Aspect E is characterized in that in any one of Aspects A to D, the replacement time of the diamond end mill is determined based on the result of measuring the cutting load when the sheet material is cut by the diamond end mill. is there.

[Aspect F]
Aspect F uses, in any one of aspects A to E, as the sheet material, a surface of a base material sheet made of plastic coated with a surface layer made of a material having a hardness higher than that of the base material sheet. It is a feature.

[Aspect G]
Aspect G is characterized in that, in any one of Aspects A to F, the support fitting is made of cemented carbide.

1: Processing machine 7: Diamond end mill 8: Spray nozzle (nozzle)
700: Shank 700a: Tip portion 701: Blade portion 100: Sheet material 100a: Through opening

Japanese Patent Laid-Open No. 11-268121 JP 2000-158618 A

Claims (7)

In a printing mask material manufacturing method for manufacturing a printing mask material by forming a plurality of through openings for a printing pattern in a sheet material,
As a tool for forming the through-opening, using a diamond end mill with a diamond blade fixed to the tip of a support fitting,
While spraying a fluid around the blade portion of the diamond end mill that is rotationally driven, the diamond end mill is moved toward the surface of the sheet material to dig a concave portion of a desired shape shallowly, and then the blade portion is After further pressing into the sheet material, the diamond end mill is moved in the surface direction while spraying a fluid around the blade portion, and the depth of the concave portion is increased to perform the through opening. A printing mask material manufacturing method characterized by forming. In the printing mask material manufacturing method of Claim 1,
A method for producing a printing mask material, characterized in that a taper that becomes thicker from the tip side toward the root side is provided at the tip portion as the support fitting. In the printing mask material manufacturing method of Claim 1 or 2,
A method for producing a printing mask material, wherein a fluid is sprayed around the blade portion even when the surface of the sheet material is cut to dig a shallow concave portion having a complicated shape. In the printing mask material manufacturing method in any one of Claims 1 thru | or 3,
A plurality of nozzles for spraying a fluid are arranged around the diamond end mill, and among these nozzles, the nozzle is directed in a direction generally opposite to the traveling direction along the surface of the diamond end mill from the nozzle toward the blade portion. A method for producing a printing mask material, wherein a fluid is selectively sprayed. In the printing mask material manufacturing method in any one of Claims 1 thru | or 4,
A printing mask material manufacturing method, comprising: determining a replacement time of the diamond end mill based on a result of measuring a cutting load when the sheet material is cut by a diamond end mill. In the printing mask material manufacturing method in any one of Claims 1 thru | or 5,
A method for producing a printing mask material, comprising using, as the sheet material, a surface of a base material sheet made of plastic and a surface layer made of a material having a hardness higher than that of the base material sheet. In the printing mask material manufacturing method in any one of Claims 1 thru | or 6,
A method for manufacturing a printing mask material, wherein the support metal fitting is made of cemented carbide.

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