JP2009090624A - Magnetic printing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a practical magnetic printing method which enables a display of a fine lineal drawing pattern to be formed in a printing layer clearly in a three-dimensional manner. <P>SOLUTION: The desired display is formed in the printing layer in a three-dimensional manner by printing on the printing side of a film-like or sheet-like matter to be printed with an ink comprising a polarizable magnetic pigment, while by arranging a magnet against the matter to be printed so that the magnetic pigment in the printing layer formed on the printing side of the matter to be printed can be oriented by the action of the magnet. When carrying out the above formation, a sheet-like magnet which is two-sided with two poles, the sheet-like magnet being structured by being attached so as to have an N pole on one side and an S pole on the other side is used as the magnet, and display patterns such as letters, figures, symbols or the like which are cut out of it are arranged so as to be positioned to oppose the matter to be printed, thereby making the display corresponding to the display pattern appear on the printing layer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a magnetic printing method, and in particular, a desired display portion is three-dimensionally and clearly formed on a print layer of an object to be printed obtained by printing with an ink containing a predetermined magnetic material by the action of a magnet. It relates to a method that can be advantageously formed.

  Conventionally, a powdery magnetic material contained in a paint is oriented by a magnetic force or a magnetic field by a magnet to produce light and shade in a three-dimensional effect and a deep feeling in a coating film. Various methods for patterning a coating film comprising forming a pattern have been studied.

  For example, in Patent Document 1, after attaching a magnet to the back surface of an object to be coated made of a nonmagnetic material, a base paint containing a powdered magnetic material is applied to the surface of the object to be coated, and After a lapse of time, a method of forming a pattern coating film is clarified, which comprises removing the magnet from the object to be coated and then applying the clear paint onto the base paint and then drying the base paint and the clear paint. Patent Document 2 discloses a method of forming a pattern by applying a coating containing a large number of fine flake-like magnetic materials on the surface of a product to be coated, the surface of the product being coated In addition, a magnetic field is previously formed according to a predetermined pattern or pattern, while a paint in which a large number of fine flaky magnetic materials are mixed in a substantially uniform manner in a transparent paint liquefied by a volatile solvent Magnetic coating method characterized by applying in a magnetic field have been revealed.

  Further, various proposals have been made for paints and pigments used in forming such a patterned coating film using magnetism (see Patent Documents 3 and 4).

  However, when forming such a pattern coating film, a magnet having a pattern corresponding to such a pattern is used so that a magnetic field (line of magnetic force) corresponding to the target pattern can be formed. When it is necessary to place it on one surface side of the object, when patterning a solid magnet to reveal the target pattern, it is processed into the target shape by cutting out a ferrite magnet etc. In addition to the above method, a method for producing a mold for molding uniquely at the time of magnet sintering, a method using an electromagnet, and the like are conceivable. In any of these methods, the formation of a target pattern is remarkable. In addition to the effort and cost, the degree of freedom in pattern production is inevitably low, and it is extremely difficult to form relatively fine patterns, especially small display parts such as characters, figures, and symbols. It was something.

  In addition, as one of such magnets, the use of a flexible magnet rubber or a magnet sheet has been clarified (see Patent Document 5). In order to ensure a strong magnetizing force, in general, such a sheet-like magnet has a single-sided multipole magnetized form or a double-sided multipole magnetized form in which multipole striped magnetic poles are magnetized. Is used, a striped pattern corresponding to the magnetic field generated corresponding to the multi-pole striped magnetic pole is developed, and therefore, a display obtained by cutting out such a sheet-like magnet is assumed. Where the pattern is used, the boundary of the pattern shape and the straight line form, etc. that appear by that pattern are not clear, and in particular, the display part corresponding to the display pattern such as characters, figures, symbols, etc. is clearly displayed. Is extremely difficult There was.

  For this reason, even if a three-dimensional appearance of a large pattern is possible in a coating film formed by painting according to the conventional magnetic coating technology, the magnetic coating technology is applied as it is in the printed layer of the printed matter. However, it was impossible to clearly display small display parts such as figures and symbols in a practical level by the action of magnets, and there was a big problem in putting the magnetic printing method into practical use there. It is.

JP-A-5-345165 Japanese Patent Laid-Open No. 5-228428 JP 2002-363440 A Japanese Patent Laid-Open No. 2003-176252 JP 2006-281011 A

  Here, the present invention has been made in the background of such circumstances, and the problem to be solved is to form a fine line drawing pattern display portion clearly and three-dimensionally on the printed layer. It is to provide a practical magnetic printing method that can be used.

  The present invention can be suitably implemented in various aspects as listed below in order to solve the problems described above or the problems grasped from the description of the entire specification and the drawings. Each aspect described below can be employed in any combination. It should be noted that the aspects and technical features of the present invention are not limited to those described below, and are recognized based on the description of the entire specification and the inventive concept disclosed in the drawings. Should be understood.

(1) On the printing surface of a film-like or sheet-like printed material, printing is performed using ink containing a magnetic pigment having a polarizing property, and a magnet is disposed on the printed material, and the printing is performed. By orienting the magnetic pigment in the printing layer formed on the printing surface of the printing material by the action of a magnet, when forming a desired display portion three-dimensionally on the printing layer, as the magnet, A double-sided, two-pole sheet magnet magnetized so that one surface side is the N pole and the other surface side is the S pole, and the display pattern of characters, figures, symbols, etc. cut out from the magnet is displayed. A magnetic printing method, wherein the display unit is arranged so as to be opposed to the substrate and the display unit corresponding to the display pattern appears on the print layer.

(2) The magnetic printing method according to the aspect (1), wherein the printing of the substrate is performed by screen printing.

(3) The above aspect (1) or (2), wherein the ink is an ultraviolet curable ink, and after the display portion corresponding to the display pattern is formed, the printed layer is cured by ultraviolet irradiation. ) Magnetic printing method.

(4) The above aspect, wherein the ink is an evaporative drying ink, and the printed layer is dried in a state where a display portion corresponding to the display pattern is formed by disposing the display pattern. The magnetic printing method according to 1) or (2).

(5) The magnetic printing method according to any one of the above aspects (1) to (4), wherein the display pattern is formed by cutting the sheet-like magnet with a cutting machine.

(6) A magnetizing operation is performed so that the display pattern is a double-sided bipolar type with respect to a cut product that is cut out in a shape that gives the display pattern from a sheet magnet before magnetization. The magnetic printing method according to any one of the above aspects (1) to (5), wherein the magnetic printing method is formed.

(7) The above aspect, wherein a plurality of the display patterns are attached to and held on a support sheet, and the support sheet to which the display patterns are attached is disposed so as to face the printed material. The magnetic printing method according to any one of (1) to (6).

  As described above, in the magnetic printing method according to the present invention, it is cut out from a double-sided, two-pole sheet magnet that is magnetized so that one surface side is an S pole and the other surface side is an N pole. Using a display pattern of form characters, figures, symbols, etc., it is positioned opposite to the printing layer formed on the printing surface of the substrate, and by the magnetic field generated from such a display pattern (magnet) By aligning the magnetic pigment in the printing layer, a target display unit corresponding to the display pattern is formed in three dimensions on the printing layer, and such display is performed. Since the pattern is constituted by a double-sided bipolar sheet-like magnet, the magnetic field is formed as a single pole composed of the S pole or the N pole on the entire surface facing the substrate. Display pattern A continuous magnetic field is formed at the peripheral edge of the screen, so that the orientation of the magnetic pigment in the printed layer is not disturbed. The display part can be displayed.

  In addition, the double-sided bipolar sheet-like magnet used as a magnet in the present invention is provided as a relatively thin sheet that is flexible and easy to cut. By the operation, the display pattern of the target shape can be cut out freely, so that the degree of freedom of pattern production can be remarkably increased, and the display pattern of fine characters, figures, symbols, etc. Even if it can be cut, it can be easily cut out, and the cost of pattern production can be significantly reduced, and even if such a fine display pattern is used, it can be realized. The line drawing pattern can be reproduced clearly and easily, so that a practically useful magnetic printing technique can be realized here.

  By the way, the magnetic printing method according to the present invention as described above is performed, for example, according to the flow shown in FIG.

  First, as the printing material, a film-like or sheet-like material that has been conventionally used for printing can be used as it is. Specifically, polyester, acrylic, polycarbonate, ABS, polyolefin, A film or sheet of a plastic material such as polyamide can be appropriately used. In addition, the printed material generally has a printed layer formed on the back side thereof, and the printed layer (display unit) is viewed from the front side. In the case where the printing layer is formed on the side, there is no problem even if it is opaque. In addition, the thickness of such a printing material is also appropriately selected according to the application within a known range.

  Moreover, even in the ink containing a magnetic pigment having a polarizing property used for printing the printing surface of such a printing material, conventionally known ones are appropriately selected and used. A printing ink in which a predetermined magnetic pigment is uniformly blended can be used. Here, as the magnetic pigment having a polarizing property, various known pigments as disclosed in the previous patent documents are appropriately adopted. Generally, a fine flake-like magnetic material, particularly a thin plate-like magnetic material is used. It will be preferably used. In addition, the material may be a ferromagnetic material such as iron, nickel, cobalt, or an alloy thereof, or a semi-magnetic material such as bismuth, antimony, copper, or zinc. Metal oxide powder can be used effectively, and those magnetic materials coated with flaky particles, or those magnetic materials plated or painted with paint can be used. It is. Such a magnetic pigment generally has a size in the longitudinal direction of about 0.5 to 100 μm and an average thickness of about 30 to 500 nm.

  Furthermore, such a magnetic pigment having a polarizing property can be uniformly dispersed and contained in an ordinary transparent printing ink, preferably an ultraviolet (UV) curable ink or an evaporation drying ink. The blending amount is generally about 1/3 to 2/3 of the resin weight in the ink. This is because when the blending amount is less than 1/3 of the resin weight in the ink, the concealing property becomes poor and the influence of the base color is greatly affected, and more than 2/3 of the resin weight. If the number is increased, the shading effect based on the orientation using a sheet-like magnet, which will be described later, is lowered, and as a result, it may be difficult to exert a sufficient effect on the clarity or visibility of the display portion.

  Then, predetermined printing is performed on the printing surface, which is one surface of the film-like or sheet-like printing material, using the ink containing the magnetic pigment described above according to a known printing technique. In this case, screen printing is advantageously employed as a printing method, and the printed surface of the printed material is in a predetermined area including at least the area where the target display portion appears. Alternatively, the entire area is solid-printed to form a predetermined print layer.

  On the other hand, the sheet-like magnet used in the present invention is a sheet-like magnet formed by dispersing a predetermined magnetic material in rubber, plastic or the like, and is generally a flexible material such as a rubber magnet or a plastic magnet. In particular, in the present invention, among such bonded magnets, one surface side is an N pole and the other surface side is an S pole. It has a great feature in that it uses display patterns such as characters, figures, symbols, etc., which are composed of magnetized double-sided bipolar sheet-like magnets.

  In other words, this display pattern uses a suitable cutting means from a double-sided two-pole sheet magnet that is magnetized so that one surface side is an N pole and the other surface side is an S pole. In addition to obtaining a desired shape such as characters, figures, symbols, etc. of the desired size, it can be easily obtained, and a sheet magnet before magnetization is used, and then a desired display pattern is given. It is also possible to form the cut out shape by subjecting the cut out product to a magnetizing operation so as to be a double-sided double pole type as described above.

  As described above, since the display pattern is formed by cutting out from the sheet-like magnet, in addition to making the manufacturing operation extremely easy, the degree of freedom in manufacturing such a pattern is remarkably increased. Therefore, such a pattern formation cost can be advantageously reduced. In particular, the sheet-shaped magnet can be cut out manually, as well as mechanically and automatically by a cutting operation using a suitable cutting device, for example, a known cutting machine. In particular, it is possible to automate the cutting operation of such a cutting machine by software, so that a target display pattern can be obtained accurately and with high productivity.

  It should be noted that the thickness of such a sheet-shaped magnet is such that a display pattern having a desired shape can be easily cut out by a cutting means while taking into account the action (magnetism of the magnetic force) as the magnet. Generally, a sheet magnet having a thickness of about 10 mm or less, preferably about 5 mm or less is used. Moreover, even if it is the thickness of the lower limit, generally a thickness of about 0.1 mm or more, preferably 0.3 mm or more is used so that a sufficient magnetic force can be applied. Various sheet-like magnets having such a thickness are commercially available, and can be appropriately selected from those commercially available products, but eventually, a double-sided bipolar sheet-like magnet is obtained. Thus, it is necessary to perform a magnetizing operation.

  Next, the display pattern thus obtained is arranged so as to face the above-described printed material, and the magnetic force of the display pattern (magnet) acts on the printed layer formed on the printed material. Thus, the display unit corresponding to the target display pattern appears on the print layer, and an example thereof is shown in FIG. In this case, the display pattern 2 is relatively superimposed on the lower surface (front surface) side of the sheet-like printed material 4 and is arranged so as to be in contact with each other. The print layer 6 according to the present invention is formed on the upper surface (back surface) side to be the printing surface at a predetermined thickness. The printed layer 6 has not yet been dried or cured. For this reason, the magnetic pigment 8 having a polarizing property contained in the ink that gives the printed layer 6 is used in such a printed layer 6. It is ready to move inside.

  Therefore, when the magnetic force of the display pattern 2 is applied to such a print layer 6 that has not yet been dried or cured, the magnetic pigment in the print layer 6 is shown as a conceptual diagram in FIG. 8 is arranged in the direction of the magnetic field lines or the magnetic flux generated from the display pattern 2 and oriented, and in that state, the printed layer 6 is dried or cured, whereby the orientation of such magnetic pigment 6 is achieved. Since the form is fixed, the display unit corresponding to the display pattern 2 appears on the print layer 6.

  That is, in the coordination form as shown in FIG. 3, when the magnetic pigment 8 is fixed in the printing layer 6, the magnetic pigment 8 is viewed from the bottom of the surface of the substrate 4 in FIG. Light easily passes through the central portion in the left-right direction in the printed layer 6 in which 8 is arranged in the up-down direction. On the other hand, the magnetic pigment 8 is inclined at both sides in the left-right direction so that the light incident from below is transmitted. From the point where the light comes to be reflected, a density difference is caused between the central part of the printed layer 6 and the both side parts thereof, thereby, in the form along the display pattern 2 arranged oppositely, A display portion based on the tone difference in color tone will appear, so that the shape corresponding to the display pattern 2 having the shape of characters, figures, symbols, etc. is expressed by the difference in shade. The display section It become a being.

  Further, the display pattern 2 for coordinating the magnetic pigment 8 in the printed layer 6 is composed of a double-sided bipolar sheet-like magnet, thereby opposing the sheet-like printed material 4. The surface side of the display pattern 2 has a single pole (here, N pole) over the entire surface. For this reason, lines of magnetic force or magnetic flux may be interrupted at the edge portion (peripheral portion) of the display pattern 2. Therefore, since the coordination form of the magnetic pigment 8 in the printing layer 6 is also a uniform coordination form along the edge portion of the display pattern 2, the light and shade formed corresponding to the display pattern 2. The outline of the display portion based on the difference can be effectively defined, and a clear line drawing pattern can be effectively formed.

  In addition, in order to coordinate the magnetic pigment 8 in the printing layer 6 on the substrate 4 by such an opposing arrangement of the display pattern 2, the printing layer 6 is dried or cured until it solidifies. In the meantime, it is necessary to hold the display pattern 2 under the action of the magnetic force. However, the opposing arrangement of the display pattern 2 is performed prior to the printing operation for forming the printing layer 6 on the sheet-like printed material 4 or It can be performed in the middle, or after such printing.

  For example, in the case where ultraviolet (UV) curable ink is used to form the printing layer 6, the display layer 2 is disposed opposite to the printing material 4, and the printing layer formed on the printing material 4. After the magnetic pigment 8 in 6 is oriented and a display portion corresponding to this display pattern 2 is formed, the printed layer 6 is cured by ultraviolet (UV) irradiation, and the target display portion is formed. It will be completed. The use of such an ultraviolet curable ink has an advantage in favoring the orientation work of the magnetic pigment 8 by the display pattern 2 because a sufficient work time can be taken until the ink is cured.

  Further, when evaporating and drying (solvent type) ink is used for forming the printing layer 6, the printing layer 6 formed on the sheet-like printed material 4 by the arrangement of the display pattern 2. In the state in which the magnetic pigment 8 inside is oriented and the display portion corresponding to the display pattern 2 is formed, the printed layer 6 is dried by heating or the like, thereby fixing the formed display portion. It will be completed. And the display pattern 2 will be removed after the solidification by the drying of such a printing layer 6 is complete | finished.

  In the printed product thus obtained, the target display portion corresponding to the display pattern 2 has a clear line drawing pattern having a clear outline, depending on the orientation of the magnetic pigment 8 in the printed layer 6. In such a printed product, the sheet-like printed material 4 is formed in such a small size or shape that can be cut out from the sheet-like magnet. If it is transparent, a black or dark presser print layer is further provided on the print layer 6, thereby obtaining a further three-dimensional effect and clear display on the display unit. Can be done.

  Incidentally, one specific example of the magnetic printing method according to the present invention described above is shown in FIGS.

  In these drawings, first, in order to obtain the printed product shown in FIG. 6, from a double-sided bipolar sheet-like magnet having a thickness of 0.4 mm (anisotropic magnet sheet type E manufactured by Nagoya Magnet Co., Ltd.). 4A, a character pattern (number of characters: 7) 10 consisting of “M-COLOR” and an ellipse-shaped graphic pattern 12 as shown in FIG. 4B are cut out. It was. As a cutting device for cutting out the character pattern 10 and the graphic pattern 12, a cutting plotter (CF2) manufactured by Mimaki Engineering Co., Ltd., which is a cutting machine capable of automatically cutting a target pattern by software. Series) was used.

  In addition, as shown in FIG. 4C, the character pattern 10 and the graphic pattern 12 are combined so that the graphic pattern 12 is positioned below, and a combination pattern 14 that provides a target display unit is formed. It was. Here, in order to arrange the character pattern 10 and to fix it between the graphic pattern 12, a double-sided tape 16 is interposed between the patterns to form an integrated pattern that is easy to handle. ing.

  On the other hand, as a printing ink, a commercially available UV ink is blended with a polarizing magnetic pigment (Germany: Ecart Co., STAPA TA Ferricon 200) and uniformly dispersed, and this is used. By performing solid printing by screen printing on one side of a transparent polyester film, as shown in FIG. 5, a printed uncured material 22 in which a solid printing layer 20 having a predetermined thickness is formed on the polyester film 18 is formed. It was.

  Then, as shown in FIG. 5, the combination pattern 14 prepared previously is arranged on the lower surface side of the printed uncured product 22 so as to face each other, and the combination pattern 14 is arranged. The magnetic pigment in the solid print layer 20 was oriented by applying a magnetic force of 14 to the solid print layer 20 on the printed uncured material 22. Here, the printed uncured product 22 and the combined pattern 14 are arranged so as to be in close contact with each other so that the magnetic force of the combined pattern 14 can be effectively applied to the printed uncured product 22. Further, the character pattern 10 in the combination pattern 14 is a mirror character as shown in the figure, and the magnetic force acts on the solid print layer 20 formed on the back side of the polyester film 18. Thus, when viewed from the side (surface side) where the solid print layer 20 of the polyester film 18 is not formed, the correct character form and arrangement are obtained.

  Next, after the magnetic pigment in the solid print layer 20 of the printed uncured product 22 is oriented by the magnetic force applied to the combination pattern 14 arranged as described above, the combination pattern 14 is removed, and then Immediately, UV irradiation was performed to cure the solid print layer 20. Thus, the intended printed product was completed by fixing the orientation state of the magnetic pigment and preserving the pattern having the three-dimensional effect as it was. Here, black press printing is further performed on the solid print layer 20 so that the displayed display pattern is emphasized. Thus, as shown in FIG. 6, a printed product having a display portion that has a three-dimensional effect and gives a clear line drawing pattern has been completed.

  The representative embodiments of the present invention have been described in detail above, but these are merely examples, and the present invention is not limited to any specific description according to such embodiments. It should be understood that the interpretation is not intended.

  For example, in the above embodiment, the printing layer 6 (solid printing layer 20) is formed on the back side of the substrate 4 (polyester film 18), and the side on which such a printing layer is not provided is the front side. Thus, although the arrangement form of the display pattern 2 (particularly, the character pattern 10) is considered, such a print layer 6 is provided on the surface side of the substrate 4 (polyester film 18). It is also possible, and according to the application, the desired arrangement of the printed layers will be selected as appropriate.

  Further, even in the display pattern 2 cut out from the sheet-like magnet, in addition to the positive character pattern 10 and the graphic pattern 12 as shown in FIG. 4, the negative character pattern 24 and the graphic pattern as shown in FIG. 26 can also be used. These negative character patterns 24 and graphic patterns 26 are obtained by punching the display pattern corresponding portions such as characters, figures, symbols, etc. with respect to the sheet magnet 28, and then, for example, It is a sheet of a predetermined shape (here, rectangular) obtained by cutting along vertical and horizontal cutting lines 30a and 30b.

  Further, even in the configuration of the display pattern 2, the positive pattern (10, 12) as shown in FIG. , 26) can be used in combination, and a positive pattern and a negative pattern can be used in combination. For example, as shown in FIG. It is also possible to configure in a form in which the character pattern 10 is arranged in the long hole 26 a provided in the pattern 26.

  Furthermore, for the purpose of improving the design properties, the ink and the printed material 4 (polyester film 18) may be colored, but in particular, in the case of ink, the ink other than the magnetic pigment is used. As the base portion, a transparent one is preferably used.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various variations, modifications, improvements, and the like are added based on the knowledge of those skilled in the art. It should be understood that all belong to the scope of the present invention without departing from the spirit of the present invention.

It is process drawing which shows an example of the magnetic printing method according to this invention. FIG. 2 is an explanatory cross-sectional view showing a form of opposing arrangement of a substrate to be printed and a display pattern in the process diagram shown in FIG. 1. It is a conceptual diagram which shows the orientation form of the magnetic body pigment in the printing layer in the process drawing shown by FIG. 1 in a cross section. The display pattern used in one specific example of this invention is shown, Comprising: (a) is a plane form explanatory drawing of a character pattern, (b) is a plane form explanatory drawing of a figure pattern, (c) is a character It is plane form explanatory drawing of the combination pattern of the structure formed by combining a pattern and a graphic pattern, and laminating | stacking. It is explanatory drawing which shows the form which uses the combination pattern shown by FIG.4 (c), and arrange | positions it with respect to a printing uncured material. It is a photograph which shows the front form (planar form) of the printed product obtained in the arrangement | positioning form shown by FIG. It is plane explanatory drawing which shows another one cutting-out form of a display pattern. It is a plane explanatory view showing another combination form of a display pattern.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Display pattern 4 Sheet-like to-be-printed object 6 Printing layer 8 Magnetic pigment 10, 24 Character pattern 12, 26 Graphic pattern 14 Combination pattern 16 Double-sided tape 18 Polyester film 20 Solid printing layer 22 Unprinted printing material 26a Long hole 28 Sheet magnet 30a, 30b cutting line

Claims (7)

While printing is performed on a printing surface of a film-like or sheet-like printing material using ink containing a magnetic pigment having a polarizing property, a magnet is arranged on the printing material, and the action of the magnet In orienting the magnetic pigment in the printing layer formed on the printing surface of the printing material in order to form a desired display portion three-dimensionally on the printing layer,
As the magnet, a double-sided bipolar sheet-like magnet magnetized so that one surface side is an N pole and the other surface side is an S pole, characters, figures, symbols, etc. cut out from the magnet are used. The magnetic printing method is characterized in that the display pattern is arranged so as to be opposed to the substrate, and the display unit corresponding to the display pattern appears on the print layer.   The magnetic printing method according to claim 1, wherein the printing of the printing material is performed by screen printing.   3. The magnetism according to claim 1, wherein the ink is an ultraviolet curable ink, and after the display portion corresponding to the display pattern is formed, the printed layer is cured by ultraviolet irradiation. 4. Printing method.   2. The printing layer according to claim 1, wherein the ink is an evaporative drying ink, and the printed layer is dried in a state in which a display portion corresponding to the display pattern is formed by disposing the display pattern. 3. The magnetic printing method according to 2.   The magnetic printing method according to claim 1, wherein the display pattern is formed by cutting the sheet-like magnet with a cutting machine.   The display pattern was formed by performing a magnetizing operation on a cut object cut into a shape that gives the display pattern from a sheet magnet before magnetization so as to be a double-sided bipolar type. 6. The magnetic printing method according to claim 1, wherein the magnetic printing method is one. The plurality of display patterns are attached to and held on a support sheet, and the support sheet to which the display pattern is attached is disposed so as to face the substrate. Item 7. The magnetic printing method according to any one of Items 6.

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