JP2013169677A - Metal mask, and method of forming recognition mark of metal mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal mask with recognition marks such that even when a metal mask of additive version manufactured by an electroforming method has a flat matte surface or semigloss surface, an error in reading the recognition marks does not occur, and a method of forming the recognition.SOLUTION: There is provided a metal mask of additive version, manufactured by an electroforming method, which has a printing opening pattern and a plurality of recognition marks formed nearby the printing opening pattern for positioning on a printed plate. An impregnated body including an etchant is pressed against a flat matte surface or semigloss surface of the metal mask of additive version to form a recessed portion which has its surface made rough with the etchant and is recessed to a depth of 1 to several μm. Further, an impregnated body including a black etchant is pressed against the surface of the recessed portion to form a black recognition mark having been subjected to black plating processing on the surface of the recessed portion.

Description

  The present invention relates to a metal mask having a recognition mark and a method for forming a recognition mark on the metal mask.

  Conventionally, when forming a recognition mark on a metal mask, an opening (opening pattern) for applying a solder paste or the like to a printed wiring board is formed on the metal mask, and then a recess is formed in a predetermined position of the metal mask using an etching solution. Is formed (half-etching), and a toner (mixture of fine carbon powder and adhesive) is filled in the recesses and dried.

Further, as a conventional technique for forming a recognition mark on a metal mask, a metal mask manufactured by electroforming has been proposed in which a concave portion of a recognition mark is formed simultaneously with the formation of an opening (for example, a patent). Reference 1). The method described in Patent Document 1 is intended to improve the relative positional accuracy between the opening and the recognition mark. However, even if the concave portion is formed at a predetermined position of the metal mask by the above method, the recognition mark To complete the
A step of filling the recess with toner and drying it was further necessary.

  In addition, as another conventional technique for forming a recognition mark on a metal mask, the recognition mark is engraved by electrolytic treatment at a predetermined position (recognition mark forming portion) of a metal mask manufactured by electroforming or laser processing (electrolysis). Marking) has been proposed (see, for example, Patent Document 1).

JP-A-7-256855 JP 2008-254344 A

  In a conventional method in which a concave portion is formed by using an etching solution at a predetermined position of a metal mask (half etching), and the concave portion is filled with toner (a mixture of fine carbon powder and adhesive) and dried, the plate thickness is 50 μm. In the case of a metal mask made of a foil having a thickness of 100 μm or less, a hole may be opened by the etching solution.

  Further, in the conventional metal mask in which the recognition mark is formed using the toner described in Patent Document 1, the toner may be removed from the concave portion of the recognition mark. In such a case, the alignment to the printed wiring board cannot be performed. There was a problem such as.

In many cases, the toner drops from the recesses when the metal mask is cleaned.
Particularly in recent years, since the openings of the metal mask are densely packed, ultrasonic cleaning is often used to remove solder paste and the like. For this reason, the toner easily falls off from the concave portion due to the cavitation effect or the like, which is a cause of frequent occurrence of the above problems.

Further, if the toner of the recognition mark falls off after the metal mask is incorporated into the production line, it is necessary to stop the production line and refill the recess with the toner. Furthermore, when the user of the metal mask cannot perform the filling operation, for example, it is necessary to call an engineer of the metal mask manufacturer to perform the filling operation. For this reason, once the toner has dropped out, there has been a problem that the productivity of the production line including the metal mask as a part thereof is significantly reduced.

  Further, in the case where the recognition mark described in Patent Document 2 is engraved by electrolytic treatment (electrolytic marking), there is no problem in the case of a laser plate manufactured by laser processing, but an additive plate manufactured by electroforming is not problematic. When the contribution surface of the recognition mark of the metal mask is a matte surface or a semi-glossy surface, it is difficult to obtain contrast and a reading error may occur, and there is a demand for improvement to make the color of the recognition mark darker (black). is there. In addition, there is a demand for improvement to prevent the recognition mark from fading due to squeezing.

  The present invention has been made to solve the above-described problems, and is a case where the contribution surface of the recognition mark of an additive-type metal mask manufactured by electroforming is a non-glossy surface or a semi-glossy surface. The present invention also provides a metal mask having a recognition mark that does not cause a recognition mark reading error and a method for forming a recognition mark on the metal mask. In addition, when an additive-made metal mask manufactured by electroforming is a glossy surface, a metal mask having a recognition mark that can be formed easily and inexpensively and a method for forming a recognition mark for the metal mask are provided.

  In the metal mask according to the present invention, a printing opening pattern formed for printing the printing material on the printing plate and a plurality of printing openings formed in proximity to the printing opening pattern for alignment with the printing plate. An additive-type metal mask manufactured by an electroforming method with a recognition mark of the additive plate, and the impregnated body impregnated with an etching solution is pressed against the glossy surface of the recognition mark contributing surface of the additive-type metal mask As a result, the surface is matted (roughened) with an etching solution, and a recessed portion having a depth of about 1 to several μm is formed, and the recessed portion serves as a recognition mark.

  Moreover, the impregnated body impregnated with the etching solution is pressed against the matte surface or semi-glossy surface of the metal mask of the additive plate so that the surface is matted (roughened) with the etching solution, and 1 to several A recess is formed with a depth of about μm, and an impregnation body (anode) containing a black plating solution is pressed onto the surface of the recess by a method applying the principle of brush plating. A black recognition mark is formed by performing black plating on the surface (cathode).

  Moreover, the impregnated body impregnated with the etching solution is pressed against the glossy surface of the metal mask of the additive plate so that the surface is made non-glossy (rough) with the etching solution and has a depth of about 1 to several μm. The concave portion is formed as a recognition mark, and on the other hand, the impregnated body containing the etching solution is pressed against the matte or semi-glossy surface of the metal mask of the additive plate so that the surface is A recess that has been matted (roughened) with an etching solution and has a depth of about 1 to several μm is formed, and the surface of the recess is pressed with an impregnated body containing a black plating solution. By applying, a black recognition mark is formed by performing black plating on the surface of the recess.

  Moreover, the impregnated body impregnated with the etching solution is pressed against both surfaces of the metal mask of the additive plate, so that the surface is matted (roughened) with the etching solution and has a depth of about 1 to several μm. A concave portion that is depressed is formed, and further, a black recognition mark is formed on the surface of the concave portion by pressing an impregnated body containing a black plating solution on the surface of the concave portion. is there.

  Moreover, it is an additive-type metal mask manufactured by a nickel electroforming method, and is a foil having a plate thickness of 100 μm or less.

  Further, in the metal mask recognition mark forming method according to the present invention, on the glossy surface of the metal mask of the additive plate manufactured by the electroforming method in which the opening pattern for printing the printing material on the printing plate is formed. A first step of forming a thin-film resist, a second step of removing a portion of the resist on which the recognition mark is to be formed from the glossy surface of the metal mask, and forming a recognition mark on the glossy surface of the metal mask. By pressing an impregnated body containing an etching solution on the portion, the surface is roughened by the etching solution, and a concave portion serving as a recognition mark is formed with a depth of about 1 to several μm. And the fourth step of removing the resist from the glossy surface of the metal mask after forming the recess.

  In addition, a thin film resist is formed on the non-glossy or semi-glossy surface of the metal mask of the additive plate manufactured by the electroforming method in which the opening pattern for printing the printing material on the printing plate is formed. 1st step, the second step of removing the resist in the portion where the recognition mark is to be formed from the non-glossy or semi-glossy surface of the metal mask, and the formation of the recognition mark on the non-glossy or semi-glossy surface of the metal mask A third step of forming a concave portion whose surface is roughened by the etching solution and depressed with a depth of about 1 to several μm by pressing an impregnated body containing an etching solution on the portion to be And a fourth step of forming a black recognition mark by applying a black plating treatment to the surface of the recess by pressing an impregnated body containing a black plating solution on the surface of the recess, and forming a black recognition mark Shi After, in which a fifth step of removing the resist from the matte side or semi-gloss surface on the metal mask.

  In addition, a thin-film resist is applied on the glossy, matte or semi-glossy surface of an additive-made metal mask manufactured by an electroforming method in which an opening pattern for printing a printing material on a printing plate is formed. A first step of forming, a second step of removing a resist in a portion where a recognition mark is to be formed, from a glossy surface and a matte surface or a semi-glossy surface of the metal mask, and a glossy surface and a matte surface of the metal mask Alternatively, the surface of the semi-glossy surface on which the recognition mark is formed is pressed with an impregnated body containing an etchant so that the surface is roughened by the etchant and is depressed with a depth of about 1 to several μm. A black plating solution only on the surface of the recess formed on the non-glossy surface or semi-glossy surface of the metal mask, and the third step of forming the recess to be formed on the glossy surface and non-glossy surface or semi-glossy surface of the metal mask, respectively. A fourth step of forming a black recognition mark with a black plating treatment applied to the surface of the recess by pressing the impregnated body, and after forming the black recognition mark, And a fifth step of removing the resist from the glossy or semi-glossy surface.

  In addition, a thin-film resist is applied on the glossy, matte or semi-glossy surface of an additive-made metal mask manufactured by an electroforming method in which an opening pattern for printing a printing material on a printing plate is formed. A first step of forming, a second step of removing a resist in a portion where a recognition mark is to be formed, from a glossy surface and a matte surface or a semi-glossy surface of the metal mask, and a glossy surface and a matte surface of the metal mask Alternatively, the surface of the semi-glossy surface on which the recognition mark is formed is pressed with an impregnated body containing an etchant so that the surface is roughened by the etchant and is depressed with a depth of about 1 to several μm. A third step of forming concave portions to be formed on the glossy surface and non-glossy surface or semi-glossy surface of the metal mask, respectively, and the surface of the recesses formed on the glossy surface and non-glossy surface or semi-glossy surface of the metal mask. A fourth step of forming a black recognition mark by applying a black plating treatment to the surface of the recess by pressing the impregnated material containing the liquid, and after forming the black recognition mark, the gloss of the metal mask And a fifth step of removing the resist from the non-glossy or semi-glossy surface.

According to the present invention, a metal mask having a recognition mark that does not cause an error in reading a recognition mark is obtained even if the additive-made metal mask manufactured by electroforming is a non-glossy or semi-glossy surface. be able to. Moreover, when the additive-made metal mask manufactured by the electroforming method has a glossy surface, a metal mask having a recognition mark that can be formed easily and inexpensively can be obtained. Furthermore, a recognition mark can be easily formed on a foil.
In addition, since the recognition mark portion has a concave shape, there is an effect of preventing the occurrence of rubbing due to squeezing.

It is a figure which shows the preparatory process of the recognition mark formation method of the metal mask in Example 1 of this invention. It is a figure which shows the resist formation process of the metal mask in Example 1 of this invention. It is a figure which shows the exposure process of the metal mask in Example 1 of this invention. It is a figure which shows the image development process of the metal mask in Example 1 of this invention. It is a figure which shows the initial stage process for forming the recognition mark formation part of the metal mask in Example 1 of this invention. It is a figure which shows the etching process of the metal mask in Example 1 of this invention. It is a figure which shows the process of forming a recessed part by the etching process of the metal mask in Example 1 of this invention. It is a principal part enlarged view which shows the recessed part formed of the etching process of the metal mask in Example 1 of this invention. It is a figure which shows the black nickel plating process of the metal mask in Example 1 of this invention. It is a principal part enlarged view which shows the recognition mark formed of the black nickel plating process of the metal mask in Example 1 of this invention. It is a figure which shows the exposure process of the metal mask in Example 2 of this invention. It is a figure which shows the image development process of the metal mask in Example 2 of this invention. It is a figure which shows the initial stage process for forming the ring-shaped recognition mark formation part of the metal mask in Example 2 of this invention. It is a figure which shows the etching process of the metal mask in Example 2 of this invention. It is a figure which shows the process of forming a ring-shaped recessed part by the etching process of the metal mask in Example 2 of this invention. It is a principal part enlarged view which shows the ring-shaped recessed part formed of the etching process of the metal mask in Example 2 of this invention. It is a figure which shows the black nickel plating process of the metal mask in Example 2 of this invention. It is a principal part enlarged view which shows the ring-shaped recognition mark formed of the black nickel plating process of the metal mask in Example 2 of this invention.

In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

  1 to 10 are views showing a metal mask manufacturing process in Embodiment 1 of the present invention. The process of forming recognition marks on both sides of the metal mask will be described in detail with reference to FIGS.

  First, a printing opening (printing opening pattern) for applying and forming a solder paste or the like on a printed board such as a printed wiring board at a predetermined position of the metal mask 1 by nickel electroforming (in FIGS. 1 to 10). (Not shown). And the metal mask 1 of the additive plate manufactured by the nickel electroforming method in which the processing of the printing opening is finished is prepared (see FIG. 1). This additive metal mask 1 is a relatively thin foil metal mask having a plate thickness of 50 μm or less or 100 μm or less. In the case of a non-glossy surface or a semi-glossy surface, it is difficult to obtain contrast. When the recognition mark is formed, there is a concern that a reading error occurs. In addition, contrast may not be difficult on the glossy surface. Next, a resist solution is applied or a dry film is laminated on both surfaces of the metal mask 1 (surface on which a recognition mark is to be formed) to form thin-film resists 2 (photosensitive films), respectively (see FIG. 2).

  Next, the film 3 provided with the positive type circular recognition mark portion 3a is placed on each resist 2 formed on both surfaces of the additive metal mask 1, and is baked (see FIG. 3). In the above process, as a matter of course, the film 3 is arranged with the recognition mark portion 3a provided on the film 3 aligned with the position where the recognition mark of the metal mask 1 is formed, and then exposed. Here, since light does not pass through the black portion of the recognition mark portion 3a during exposure, the resist 2 in the portion located below the recognition mark portion 3a is not cured. On the other hand, since light is transmitted through the portions other than the recognition mark portion 3a in the film 3, the resist 2 positioned below the portion other than the recognition mark portion 3a is cured.

FIG. 3 shows an exposure process when a negative type resist 2 is used. On the other hand, when the positive type resist 2 is used, the film 3 provided with the negative type recognition mark portion 3a may be used. In such a case, contrary to the above case, the recognition mark portion 3
Only light a is transmitted, and the resist 2 in the portion located below the recognition mark portion 3a is dissolved.

After the exposure step is completed, the film 3 is peeled off from each resist 2, and only the portion of the resist 2 that has not been cured in the exposure step (uncured resist portion 2a) is developed on both surfaces of the metal mask 1 with a developer. Remove from above (see FIG. 4). Through the above-described steps, the resist 2 of the portion for forming the recognition mark (recognition mark forming portion 1a) can be removed from both surfaces of the additive metal mask 1, and both sides of the additive metal mask 1 can be removed. The resist 2 having an opening only in the circular recognition mark forming portion 1a is completed. The opened recognition mark forming portion 1a has a diameter of about 1 mm, is a portion where the resist is not covered and nickel is exposed, and other than the recognition marking forming portion 1a (etching and black described later). The portions not subjected to nickel plating are masked with the resist 2 (see FIG. 5).

  Next, an etching solution consisting of 400 cc of 75% nitric acid and 50 cc of phosphoric acid is prepared. Then, for example, the prepared etching solution is contained in an etching impregnation body 4 made of a cotton swab or the like, and the impregnation body 4 containing the etching solution is pushed into the circular recognition mark forming portion 1a of the metal mask 1 of the additive plate. Hit (see Figure 6). Then, the impregnated body 4 containing the etching solution is moved so that the new etching solution spreads over the entire circular recognition mark forming portion 1 a of the metal mask 1. The time required for this etching is about 7 to 10 seconds. Next, when about 7 to 10 seconds have elapsed, the etching solution is immediately wiped off with paper and washed with water. As a result, the circular concave portion 5 whose surface is roughened by the etching solution and is recessed with a slight depth of about 1 to 2 μm in the circular recognition mark forming portion 1a of the metal mask 1 of the additive plate. Is formed (see FIG. 7). A depth of about several μm is sufficient for the circular recess 5 and the surface is roughened with an etching solution. Therefore, when the additive plate manufactured by electroforming is a glossy surface, it is difficult to obtain contrast. Since this is not the case, it can be used as the recognition mark 6 that can be formed easily and inexpensively (see FIG. 8). On the other hand, when the additive plate manufactured by the electroforming method is a non-glossy surface or a semi-glossy surface, it is difficult to obtain contrast, and it is considered that a reading error occurs. Therefore, black nickel plating described later is formed on the surface of the circular recess 5 of the matte surface or semi-gloss surface of the additive plate. At this time, since the circular concave portion 5 is depressed and the surface is roughened by the etching solution, the biting of the plating is improved and the adhesion with the black nickel plating is improved.

  Next, nickel chloride (industrial chemical) 75g / L, ammonium chloride (reagent primary) 30g / L, zinc chloride (reagent primary) 30g / L and sodium thiocyanate (reagent primary) 15g / L, distilled water about 750cc Prepare a black nickel plating solution consisting of Then, for example, the plating impregnating body 8 made of a cotton swab or the like is set between the tips of the plating-dedicated electrode 7 made of a metal tweezers-type gripping body, and the black prepared in the plating impregnating body 8 is prepared. A nickel plating solution is included, and the plating-dedicated electrode 7 is connected to the + side of the DC power source, and the metal mask 1 is connected to the − side. Then, the impregnating body 8 for plating containing a black nickel plating solution is pressed strongly against the surface of the circular recess 5 formed on the matte or semi-glossy surface of the additive metal mask 1 for about 2 to 3 seconds ( (See FIG. 9). Thereby, the black nickel plating solution oozes out on the surface of the circular recess 5. Then, the plating impregnated body 8 containing the black nickel plating solution is moved so that the new black nickel plating solution spreads over the entire circular recess 5 on the matte or semi-glossy surface of the metal mask 1. The time required for this black nickel plating process is about 20 seconds. Next, after about 20 seconds have passed, the dedicated electrode 7 made of tweezers is lifted from the circular recess 5 on the matte or semi-gloss surface, and the black nickel plating solution is wiped off with paper or the like and washed with water. As a result, a black or dark recognition mark 9 is formed on the surface of the circular recess 5 on the matte or semi-glossy surface of the additive metal mask 1 (see FIG. 10). The black or dark recognition mark 9 is provided with a recognition mark that does not cause an error in reading the recognition mark even if the additive plate manufactured by electroforming is a non-glossy or semi-glossy surface. A metal mask can be obtained. Moreover, since the recessed part 5 is depressed and the surface is roughened by the etching solution, the biting is improved and the adhesion with the black nickel plating is improved. Moreover, since the recognition mark 9 which is black or dark (black) is formed on the surface of the recess 5, the recognition mark 9 is not rubbed by squeezing.

  If the additive-made metal mask manufactured by the electroforming method has a glossy surface, the surface is not roughened by the etching solution, and the depth is slightly deep. The circular recess 5 that is depressed with a depth of about 1 to 2 μm can be used as the recognition mark 6 as it is. If the additive metal mask is a non-glossy surface or a semi-glossy surface, a black or darker recognition mark 9 is formed on the surface of the circular recess 5, and then the metal mask 1 is removed with a stripping solution. The metal mask 1 is completed (not shown) by removing all the resist 2 from both sides.

  In addition, in the said Example 1, although demonstrated as the circular recessed part 5, it is not restricted to a circle. Moreover, although it demonstrated using the metal mask produced by the nickel electroforming method, not only nickel but stainless steel may be sufficient.

  11 to 18 are views showing a metal mask manufacturing process according to the second embodiment of the present invention. The manufacturing process of FIGS. 1 and 2 is the same as that of the first embodiment, and thus the description thereof is omitted.

  A film 3 provided with a ring-shaped recognition mark portion 3a for positive type is placed on each resist 2 formed on both surfaces of the additive metal mask 1 and is baked (see FIG. 11).

After the exposure step is completed, the film 3 is peeled off from each resist 2, and only the portion of the resist 2 that has not been cured in the exposure step (uncured resist portion 2a) is developed on both surfaces of the metal mask 1 with a developer. Remove from above (see FIG. 12). Through the above-described steps, the resist 2 in the portion (recognition mark forming portion 1a) where the ring-shaped recognition mark is to be formed can be removed from both surfaces of the additive metal mask 1, and both surfaces of the additive metal mask 1 can be removed. On top of this, the resist 2 opened only in the ring-shaped recognition mark forming portion 1a is completed. The opened ring-shaped recognition mark forming portion 1a has a diameter of about 1 mm, is a portion where the resist is not covered and nickel is exposed, and the portions other than the recognition marking forming portion 1a (described later). The portion where etching or black nickel plating is not performed and the central convex portion of the ring-shaped recognition marking forming portion 1a are masked with the resist 2 (see FIG. 13).

  Next, an etching solution consisting of 400 cc of 75% nitric acid and 50 cc of phosphoric acid is prepared. Then, for example, the etching solution prepared in the etching impregnating body 4 made of a cotton swab or the like is included, and the etching solution is applied to the resist 2 on the central convex portion of the ring-shaped recognition mark forming portion 1a of the metal mask 1 of the additive plate. The impregnated body 4 included is pressed (see FIG. 14). Then, the etching solution spreads from the impregnated body 4 and flows down. Then, the impregnated body 4 containing the etching solution is moved so that the new etching solution spreads over the entire ring-shaped recognition mark forming portion 1 a of the metal mask 1. The time required for this etching is about 7 to 10 seconds. Next, when about 7 to 10 seconds have elapsed, the etching solution is immediately wiped off with paper and washed with water. As a result, the ring-shaped recognition mark forming portion 1a of the metal mask 1 of the additive plate has a ring-shaped surface whose surface is roughened by an etching solution and is recessed with a depth of about 1 to 2 μm. Are formed (see FIG. 15). The ring-shaped recess 5 is sufficient to have a depth of about several μm at most, and the surface is roughened with an etching solution. Therefore, when the additive plate manufactured by electroforming is a glossy surface, contrast is maintained. Since it does not become difficult, it can be used as the recognition mark 6 that can be formed easily and inexpensively (see FIG. 16). On the other hand, when the additive plate manufactured by the electroforming method is a non-glossy surface or a semi-glossy surface, it is difficult to obtain contrast, and it is considered that a reading error occurs. Therefore, the later-described black nickel plating is formed on the surface of the ring-shaped recess 5 of the matte or semi-glossy surface of the additive plate. At this time, since the ring-shaped recess 5 is depressed and the surface is roughened by the etching solution, the biting of the plating is improved, and the adhesion with the black nickel plating is improved.

  Next, nickel chloride (industrial chemical) 75g / L, ammonium chloride (reagent primary) 30g / L, zinc chloride (reagent primary) 30g / L and sodium thiocyanate (reagent primary) 15g / L, distilled water about 750cc Prepare a black nickel plating solution consisting of Then, for example, the plating impregnating body 8 made of a cotton swab or the like is set between the tips of the plating-dedicated electrode 7 made of a metal tweezers-type gripping body, and the black prepared in the plating impregnating body 8 is prepared. A nickel plating solution is included, and the plating-dedicated electrode 7 is connected to the + side of the DC power source, and the metal mask 1 is connected to the − side. Then, an impregnation body for plating 8 containing a black nickel plating solution is added to the resist 2 on the central convex portion of the ring-shaped recognition mark forming portion 1a of the matte or semi-glossy surface of the metal mask 1 of the additive plate. Press firmly for about 3 seconds (see FIG. 17). Thereby, the black nickel plating solution oozes out from the impregnated body 8, spreads around, and flows down to the ring-shaped recess 5. Then, the plating impregnated body 8 containing the black nickel plating solution is moved so that the new black nickel plating solution spreads over the entire ring-shaped recess 5 of the matte or semi-glossy surface of the metal mask 1. The time required for this black nickel plating process is about 20 seconds. Next, when about 20 seconds have elapsed, the plating-dedicated electrode 7 of the tweezers-type gripping body is pulled up from the ring-shaped recess 5 of the matte or semi-gloss surface, and the black nickel plating solution is wiped off with paper or the like and washed with water. As a result, a ring-shaped recognition mark 9 having a black color or a dark (black) color is formed on the surface of the ring-shaped recess 5 of the matte or semi-glossy surface of the metal mask 1 (see FIG. 18). ). This black or dark ring-shaped recognition mark 9 is a recognition mark that does not cause a recognition mark reading error even if the additive plate manufactured by electroforming is a non-glossy or semi-glossy surface. A metal mask provided with can be obtained. Moreover, since the ring-shaped recessed part 5 is depressed and the surface is roughened by the etching solution, the biting is improved and the adhesion with the black nickel plating is improved. Moreover, since the center part of the ring-shaped recessed part 5 protrudes, the recognition mark 9 is not rubbed by squeezing.

  If the additive-made metal mask manufactured by the electroforming method has a glossy surface, the surface is not roughened by the etching solution, and the depth is slightly deep. A ring-shaped recess 5 that is depressed with a depth of about 1 to 2 μm is used as a recognition mark 6 as it is. If the additive metal mask is a matte or semi-glossy surface, a recognition mark 9 having a black color or a darker color (black) is formed on the surface of the ring-shaped recess 5, and then the metal is removed with a stripping solution. The metal mask 1 is completed by removing all the resists 2 from both sides of the mask 1 (not shown).

DESCRIPTION OF SYMBOLS 1 Metal mask 1a Recognition mark formation part 2 Resist 2a Uncured resist part 3 Film 3a Recognition mark part 4 Impregnation body for etching which consists of cotton swab etc. which contained etching liquid 5 Recessed part 6 Recognition mark 7 It consists of metal tweezers type grip bodies Dedicated electrode for plating 8 Impregnated material for plating consisting of cotton swabs, etc. 9 Black recognition mark with deep (black) color

Claims (9)

A printing opening pattern formed for printing a printing material on a printing plate, and a plurality of recognition marks formed in proximity to the printing opening pattern for alignment with the printing plate An additive version of a metal mask manufactured by electroforming,
A concave portion whose surface is roughened with an etching solution by pressing an impregnated body containing an etching solution against the glossy surface of the metal mask of the additive plate and having a depth of about 1 to several μm. A metal mask characterized in that the concave portion is used as a recognition mark. A printing opening pattern formed for printing a printing material on a printing plate, and a plurality of recognition marks formed in proximity to the printing opening pattern for alignment with the printing plate An additive version of a metal mask manufactured by electroforming,
The impregnated body impregnated with an etching solution is pressed against the matte surface or semi-glossy surface of the metal mask of the additive plate so that the surface is roughened by the etching solution and has a depth of about 1 to several μm. Forming a recessed portion that is depressed, and forming a black recognition mark on the surface of the recessed portion by pressing an impregnated body containing a black plating solution on the surface of the recessed portion. A metal mask characterized by A printing opening pattern formed for printing a printing material on a printing plate, and a plurality of recognition marks formed in proximity to the printing opening pattern for alignment with the printing plate An additive version of a metal mask manufactured by electroforming,
A concave portion whose surface is roughened with an etching solution by pressing an impregnated body containing an etching solution against the glossy surface of the metal mask of the additive plate and having a depth of about 1 to several μm. The concave portion is used as a recognition mark, and the impregnated body impregnated with an etching solution is pressed against the matte or semi-glossy surface of the metal mask of the additive plate, so that the surface is roughened by the etching solution. And forming a recessed portion having a depth of about 1 to several μm, and further pressing the impregnated body impregnated with a black plating solution onto the surface of the recessed portion, thereby forming a black surface on the surface of the recessed portion. A metal mask characterized by forming a black recognition mark that has been plated. A printing opening pattern formed for printing a printing material on a printing plate, and a plurality of recognition marks formed in proximity to the printing opening pattern for alignment with the printing plate An additive version of a metal mask manufactured by electroforming,
By pressing an impregnated body containing an etchant on both surfaces of the metal mask of the additive plate, the surface is roughened by the etchant, and recessed portions having a depth of about 1 to several μm are depressed. And forming a black recognition mark having a black plating treatment on the surface of the concave portion by pressing an impregnated body containing a black plating solution on the surface of the concave portion. .   The metal mask according to any one of claims 1 to 3, wherein the metal mask is an additive-type metal mask manufactured by a nickel electroforming method and has a thickness of 100 µm or less. A first step of forming a thin-film resist on the glossy surface of the metal mask of an additive plate manufactured by an electroforming method in which an opening pattern for printing a printing material on a printing plate is formed;
A second step of removing the resist in a portion for forming a recognition mark from the glossy surface of the metal mask;
By pressing an impregnated body containing an etchant against the portion of the glossy surface of the metal mask that forms the recognition mark, the surface is roughened by the etchant and has a depth of about 1 to several μm. A third step of forming a concave portion that becomes a recognition mark to be depressed;
A fourth step of removing the resist from the glossy surface of the metal mask after forming the recess;
A method of forming a recognition mark for a metal mask, comprising: A first resist is formed on a matte or semi-glossy surface of an additive-type metal mask manufactured by an electroforming method in which an opening pattern for printing a printing material on a printing plate is formed. Process,
A second step of removing the resist in a portion for forming a recognition mark from the non-glossy or semi-glossy surface of the metal mask;
The surface of the metal mask is roughened with an etching solution by pressing an impregnated body containing an etching solution against the portion of the metal mask that forms the recognition mark on the matte or semi-glossy surface, and 1 to several μm. A third step of forming a recess that is depressed with a certain depth;
A fourth step of forming a black recognition mark having been subjected to black plating treatment on the surface of the recess by pressing an impregnated body containing a black plating solution on the surface of the recess;
A fifth step of removing the resist from the non-glossy or semi-glossy surface of the metal mask after forming the black recognition mark;
A method of forming a recognition mark for a metal mask, comprising: A thin-film resist is formed on the glossy and matte or semi-glossy surface of an additive-type metal mask manufactured by electroforming with an opening pattern for printing a printing material on a printing plate. A first step;
A second step of removing the resist in a portion for forming a recognition mark from the glossy surface and the non-glossy surface or the semi-glossy surface of the metal mask;
The surface of the metal mask is roughened with an etching solution by pressing an impregnated body containing an etching solution against the glossy and non-glossy or semi-glossy surface of the metal mask where the recognition mark is formed. A third step of forming concave portions recessed with a depth of about several μm on the glossy surface and the non-glossy surface or semi-glossy surface of the metal mask,
Only the surface of the recess formed on the matte surface or semi-gloss surface of the metal mask is pressed against an impregnated body containing a black plating solution, whereby the surface of the recess is subjected to black plating treatment. A fourth step of forming a recognition mark;
A fifth step of removing the resist from the glossy and matte or semi-glossy surfaces of the metal mask after forming the black recognition mark;
A method of forming a recognition mark for a metal mask, comprising: A thin-film resist is formed on the glossy and matte or semi-glossy surface of an additive-type metal mask manufactured by electroforming with an opening pattern for printing a printing material on a printing plate. A first step;
A second step of removing the resist in a portion for forming a recognition mark from the glossy surface and the non-glossy surface or the semi-glossy surface of the metal mask;
The surface of the metal mask is roughened with an etching solution by pressing an impregnated body containing an etching solution against the glossy and non-glossy or semi-glossy surface of the metal mask where the recognition mark is formed. A third step of forming concave portions recessed with a depth of about several μm on the glossy surface and the non-glossy surface or semi-glossy surface of the metal mask,
The surface of the recess was subjected to black plating treatment by pressing an impregnated body containing a black plating solution against the surface of the recess formed on the glossy surface and the matte surface or semi-glossy surface of the metal mask. A fourth step of forming a black recognition mark;
A fifth step of removing the resist from the glossy and matte or semi-glossy surfaces of the metal mask after forming the black recognition mark;
A method of forming a recognition mark for a metal mask, comprising:

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