Sagger with two-dimensional code and method for forming two-dimensional code on sagger

Abstract

The object of the present invention is to provide a sagger 1 with a two-dimensional code that can make a two-dimensional code 4 formed with a laser marker readable and that is easy to mass-produce, and a method for forming a two-dimensional code on a sagger. [Solution] The sagger (1) with a two-dimensional code of the present invention is formed in a required portion of the sagger body (2) and has a contrast-forming base material layer (3) for forming a contrast with the two-dimensional code (4) formed by a laser marker, and the two-dimensional code (4) formed on the contrast-forming base material layer (3) by a laser marker.

Description

[Technical Field]

[0001] The present invention relates to a sagger with a two-dimensional code and a method for forming a two-dimensional code on a sagger. [Background technology]

[0002] Conventionally, two-dimensional codes (e.g., QR Code (registered trademark), barcode, data matrix) have been used on products for individual management. (trademark) These markings are made using a laser marker. This involves scraping away part of the surface base of the product with the laser marker, which then reacts with heat to color the surface.

[0003] On the other hand, with regard to the individual management of saggers, proposals have been made for an identification structure for a sagger for firing (Japanese Patent Laid-Open Publication No. 6-94375), in which a notched groove constituting an identification code is formed in a predetermined position on the sagger, and an identification structure for a sagger for firing (Japanese Patent Laid-Open Publication No. 6-42884), in which a reaction-preventing base coating composed mainly of zirconia is formed on at least the mark-forming surface of the ceramic sagger body, and an identification mark composed mainly of iron oxide powder with a purity of 90% or more is formed on the base coating.

[0004] However, when a two-dimensional code is formed on a sagger with a laser marker and then fired, the colored areas created by the thermal reaction on the surface due to temperature and thermal history revert to the base color, making the two-dimensional code unreadable, as shown in Figure 8. Furthermore, the identification structures of the firing saggers in JP-A-6-94375 and JP-A-6-42884 have the problem of being difficult to mass-produce. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 6-94375 [Patent Document 2] Japanese Patent Application Publication No. 6-42884 Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, an object of the present invention is to provide a sagger with a two-dimensional code that can make two-dimensional codes formed with a laser marker readable and that is easy to mass-produce, and a method for forming a two-dimensional code on a sagger. [Means for solving the problem]

[0007] The solution to the above problem is a two-dimensional code formed on a required part of the sagger body using a laser marker. Due to color differences This is a sagger with a two-dimensional code, characterized by having a contrast-forming base material layer for creating contrast and a two-dimensional code formed on the contrast-forming base material layer using the laser marker (Claim 1).

[0008] The contrast base material forming the contrast base material layer is preferably formed of glaze or heat-resistant ink (claim 2). (trademark) It is preferable that (claim 3).

[0009] Also, what solves the above problem is a two-dimensional code formed by a laser marker on a required part of the sagger body. Due to color differences This is a method for forming a two-dimensional code on a sagger, characterized by comprising a base treatment step of forming a contrast-forming base material layer to create contrast, a laser marking step of forming a two-dimensional code on the contrast-forming base material layer using the laser marker, and a firing step of firing the sagger body on which the two-dimensional code has been formed to create contrast between the two-dimensional code and the surface of the contrast-forming base material layer (Claim 4).

[0010] The contrast base material forming the contrast base material layer is preferably formed of glaze or heat-resistant ink (claim 5). (trademark) (Claim 6). It is preferable that the surface treatment step is performed after the molding step of the sagger body, and the laser marking step is performed after the drying step of the sagger body (Claim 7). The surface treatment step and the laser marking step may be performed after the firing step of the sagger body (Claim 8). [Effects of the Invention]

[0011] According to the sagger with a two-dimensional code as set forth in claim 1, the two-dimensional code formed by a laser marker can be read and mass production becomes easy. According to the sagger with a two-dimensional code described in claim 2, the contrast-forming base material layer is less likely to discolor or peel off due to thermal history, and the two-dimensional code can be read even if the sagger is used repeatedly. According to the sagger with a two-dimensional code as set forth in claim 3, the code is easier to read than a QR code (registered trademark), and the time required to form the two-dimensional code using a laser marker can be reduced. According to the method for forming a two-dimensional code on a sagger as set forth in claim 4, the two-dimensional code formed by a laser marker can be made readable and mass production becomes easy. According to the method for forming a two-dimensional code on a sagger described in claim 5, the contrast-forming base material layer is less likely to discolor or peel off due to thermal history, and the two-dimensional code can be read even if the sagger is used repeatedly. According to the method for forming a two-dimensional code on a sagger as set forth in claim 6, the code is easier to read than a QR code (registered trademark), and the time required to form the two-dimensional code using a laser marker can be reduced. According to the method for forming a two-dimensional code on a sagger as set forth in claim 7, in addition to the effect of the method for forming a two-dimensional code on a sagger as set forth in claim 4, the time required to form the two-dimensional code using a laser marker can be shortened. According to the method for forming a two-dimensional code on a sagger described in claim 8, the time required for forming the two-dimensional code is longer than that required for the method for forming a two-dimensional code on a sagger described in claim 7, but it has the same effect as the method for forming a two-dimensional code on a sagger described in claim 4. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a partial cross-sectional view of one embodiment of a sagger with a two-dimensional code of the present invention. [Figure 2] This is a photograph of the area around the two-dimensional code (alphabetical letters and numbers) on the sagger with the two-dimensional code shown in Figure 1. [Figure 3] 1 is a manufacturing process chart of one embodiment of a method for forming a two-dimensional code on a sagger of the present invention (laser marking before firing). [Figure 4] 4 is a photograph of the vicinity of a two-dimensional code (Data Matrix (trademark)) in a sagger with a two-dimensional code produced by the method of forming a two-dimensional code on a sagger of the present invention shown in FIG. 3. [Figure 5] 10 is a manufacturing process chart of another embodiment of the method for forming a two-dimensional code on a sagger of the present invention (laser marking after firing). [Figure 6] 6 is a photograph of the vicinity of a two-dimensional code (QR Code (registered trademark)) in a sagger with a two-dimensional code produced by the method of forming a two-dimensional code on a sagger of the present invention shown in FIG. 5. [Figure 7] 6 is a photograph of the vicinity of a two-dimensional code (Data Matrix (trademark)) in a sagger with a two-dimensional code produced by the method of forming a two-dimensional code on a sagger of the present invention shown in FIG. 5. [Figure 8] This is a photograph of the area around a two-dimensional code on a sagger with a two-dimensional code (alphabetical and numeric) made using a conventional method for forming a two-dimensional code on a sagger. DETAILED DESCRIPTION OF THE INVENTION

[0013] In the present invention, a contrast-forming base material layer 3 is formed in a required portion of the sagger body 2 to form a contrast with the two-dimensional code 4 formed by a laser marker, and the two-dimensional code 4 is formed by a laser marker on the contrast-forming base material layer 3. This makes it possible to read the two-dimensional code 4 formed by the laser marker, and has realized a sagger 1 with a two-dimensional code that is easy to mass-produce, and a method for forming a two-dimensional code on a sagger. [Example]

[0014] The sagger with a two-dimensional code and the method for forming the two-dimensional code on the sagger of the present invention will be described with reference to an embodiment shown in FIG. 1 or FIG. The sagger 1 with a two-dimensional code of this embodiment is formed in a required portion of the sagger body 2, and has a contrast-forming base material layer 3 for forming a contrast with the two-dimensional code 4 formed by a laser marker, and the two-dimensional code 4 formed by a laser marker on the contrast-forming base material layer 3. Each component will be described in detail below.

[0015] The contrast-creating base material layer 3 is provided to create a contrast with the two-dimensional code 4 formed by a laser marker, and in this embodiment, is formed on a required portion (the front side wall surface of the sagger body 2) of the sagger body 2 (a square cylinder with a bottom and an open top). However, the portion on which the contrast-creating base material layer is provided is not limited to the front side wall surface of the sagger body 2, and may be any portion on the surface of the sagger body 2.

[0016] The contrast base material constituting the contrast base material layer 3 is made of a material that forms a contrast with the two-dimensional code formed by the laser marker and makes the two-dimensional code 4 readable.

[0017] Specifically, the contrast base material forming the contrast base material layer 3 in this embodiment is formed from a glaze or heat-resistant ink that turns blue when fired. The blue coloring of the contrast base material layer 3 thus creates a contrast between the two-dimensional code 4 and the background of the two-dimensional code 4, making it readable. Furthermore, because these glazes or heat-resistant inks are resistant to high temperatures, the contrast base material layer 3 is less likely to discolor or peel due to thermal history, and the two-dimensional code can be read even after repeated use of the sagger. However, the contrast base material forming the contrast base material layer in the present invention is not limited to one that turns blue; any contrast base material that forms a contrast with the two-dimensional code and makes the two-dimensional code readable is broadly encompassed within the scope of the present invention.

[0018] The two-dimensional code 4 is formed by a laser marker on the surface of the contrast base material layer 3. The two-dimensional code may be any two-dimensional identification mark that allows for individual management of the sagger body 2, such as a QR code (registered trademark) or a data matrix. (trademark) A combination of bar codes, numbers, letters, etc. can be suitably used.

[0019] As a two-dimensional code, Data Matrix (trademark) is more preferable, as it can store a large amount of information, is easier to read than a QR code (registered trademark), requires less time to form a two-dimensional code using a laser marker, and is more suitable for mass production.

[0020] The two-dimensional code 4 is formed on the contrast-forming base material layer 3 by a laser marker and then baked, whereby a contrast is created with the surface of the contrast-forming base material layer 3, making it readable.

[0021] Next, a method for forming a two-dimensional code on a sagger according to the present invention will be described using an embodiment shown in FIG. 3 or FIG. The method of forming a two-dimensional code on a sagger 1 in this embodiment includes a base treatment step of forming a contrast-forming base material layer 3 to form a contrast with the two-dimensional code 4 formed on a required portion of the sagger body 2 using a laser marker, a laser marking step of forming the two-dimensional code 4 on the surface of the contrast-forming base material layer 3 using a laser marker, and a firing step of firing the sagger body 2 on which the two-dimensional code 4 has been formed to form a contrast between the two-dimensional code 4 and the contrast-forming base material layer 3, the base treatment step being carried out after the sagger body molding step, and the laser marking step being carried out after the sagger body drying step. Each step will be described below. These will be explained in detail in turn.

[0022] In the base treatment process for forming the contrast base material layer 3 that forms the contrast with the two-dimensional code 4 formed by a laser marker in the required portion of the sagger body 2, the contrast base material is applied to the required portion of the sagger body 2, for example, the front side wall surface of the sagger body 2, to form a smooth surface and perform the base treatment. Specifically, the contrast base material is applied with a brush, spread with a sponge or spatula, etc. to form a smooth surface, and then absorbed into the sagger body 2 and dried by natural curing.

[0023] The contrast base material must be resistant to discoloration and peeling due to heat history, and must also provide high contrast (differences in brightness and color) with the two-dimensional code 4 formed by the laser marker. Glazes and heat-resistant inks are suitable for this purpose. In this example, "Cobalt Blue for Bisque Stamps" manufactured by Kakujin Co., Ltd. was used.

[0024] In the laser marking process, a two-dimensional code 4 is formed on the surface of the contrast base material layer 3 using a laser marker. The two-dimensional code 4 is formed by irradiating the contrast base material layer 3 with a laser for a required time using a laser marker. When the contrast base material layer 3 is irradiated with the laser marker in this way, the contrast base material layer 3 is scraped off, exposing the surface base material of the sagger body 2. The two-dimensional code 4 itself may be formed using a laser marker (the two-dimensional code to be read is formed on the surface base material of the sagger body 2 and printed using a laser marker), or the background of the two-dimensional code 4 may be formed using a laser marker (the two-dimensional code to be read is formed on the contrast base material layer 3). The latter method was used in the example of Figure 4.

[0025] The two-dimensional code 4 may be any two-dimensional identification mark that allows individual management of the sagger body 2, such as a QR code (registered trademark) or a data matrix. (trademark) A combination of barcodes, numbers, letters, etc. can be suitably used. In this embodiment, a data matrix is ​​used as shown in FIG. (trademark) was formed as a two-dimensional code 4.

[0026] In the firing process, in which the sagger body 2 on which the two-dimensional code 4 is formed is fired to form a contrast between the two-dimensional code 4 and the surface of the contrast-forming base material layer 3, the sagger body 2 on which the two-dimensional code 4 is formed is placed in a furnace and fired at a firing temperature of 1000°C or higher for 9 to 18 hours. This bakes the contrast-forming base material layer 3, forming a contrast with the two-dimensional code 4 formed by the laser marker, making the two-dimensional code 4 readable and facilitating mass production of saggers 1 with two-dimensional codes. The portion formed by the laser marker (the surface base of the sagger body 2 exposed by the laser marker) is brown due to the thermal reaction during irradiation, but this changes to the base color, white, upon firing, making the contrast between the contrast-forming base material layer 3 and the two-dimensional code 4 formed by the laser marker even clearer.

[0027] In the method for forming a two-dimensional code on a sagger in this embodiment, as shown in Figure 3, the surface preparation process is performed after the molding process of the sagger body 2, and the laser marking process is performed after the drying process of the sagger body 2. This makes it possible to shorten the time required to form a two-dimensional code using a laser marker.

[0028] Next, another embodiment of the method for forming a two-dimensional code on a sagger according to the present invention will be described with reference to FIG. The difference between the method for forming a two-dimensional code on a sagger in this embodiment and the method for forming a two-dimensional code on a sagger shown in Figure 3 described above is that in the method for forming a two-dimensional code on a sagger shown in Figure 3, the base treatment process is performed after the molding process of the sagger body 2 and the laser marking process is performed after the drying process of the sagger body 2, whereas in the method for forming a two-dimensional code on a sagger in this embodiment, the base treatment process and the laser marking process are performed after the firing process of the sagger body; otherwise, they are the same.

[0029] In this way, the method of forming a two-dimensional code on a sagger of the present invention may be performed after the sagger has been fired. As a result, the time required to form the two-dimensional code using a laser marker is longer than the method of forming a two-dimensional code on a sagger shown in Figure 3 above, because the baked contrast-forming base material layer 3 must be thoroughly scraped away. However, even with this method, a contrast can be created between the two-dimensional code 4 and the surface of the contrast-forming base material layer 3, allowing the two-dimensional code 4 to be read.

[0030] (2D code formation time comparison test) The two-dimensional code formation time shown here is the shortest laser irradiation time that enables reading. The two-dimensional code (Data Matrix) shown in Figure 4 was formed by the two-dimensional code forming method shown in Figure 3. (trademark)) requires a minimum of 20 seconds to form a two-dimensional code, whereas the two-dimensional code (QR Code (registered trademark)) of FIG. 6 formed by the method of forming a two-dimensional code on a sagger shown in FIG. 5 requires a minimum of 112 seconds to form a two-dimensional code, and the two-dimensional code (Data Matrix (trademark) ) had a shortest two-dimensional code formation time of 67 seconds.

[0031] (Consideration 1) The two-dimensional code (Data Matrix) formed by the two-dimensional code formation method (laser marking after firing and re-firing) on ​​the sagger shown in Figure 5 (trademark) The two-dimensional code (data matrix) formed by the two-dimensional code formation method (laser marking before firing) shown in Figure 3 is longer than the two-dimensional code (data matrix) formed by the two-dimensional code formation method (laser marking before firing) shown in Figure 3. (trademark) It took about three times as long to form the two-dimensional code as compared to laser marking before firing (two-dimensional code formation time: 20 seconds), and it was confirmed that laser marking before firing can shorten the two-dimensional code formation time.

[0032] (Consideration 2) The two-dimensional code was formed using the method shown in Figure 5 (laser marking after firing and re-firing) on ​​the sagger. Figure 6 The two-dimensional code (QR Code (registered trademark): two-dimensional code formation time 112 seconds) was formed using the two-dimensional code formation method on the sagger shown in Figure 5 (similarly laser marking after firing and re-firing). Figure 7 Two-dimensional code (Data Matrix (trademark) It takes about 1.67 times longer to create a two-dimensional code than the conventional two-dimensional code (Data Matrix: 67 seconds). (trademark)) It was confirmed that the time required to form a two-dimensional code can be reduced compared to a two-dimensional code (QR Code (registered trademark)). [Explanation of symbols]

[0033] 1. Sack with 2D code 2. Sack bowl body 3. Contrast construction base layer 4. 2D code

Claims

1. It is formed in the required part of the sagger body, a contrast-forming base material layer for forming a contrast between the two-dimensional code formed by the laser marker and the color difference; A sagger with a two-dimensional code, characterized in that it has a two-dimensional code formed on the contrast base material layer by the laser marker.

2. 2. The sagger with a two-dimensional code according to claim 1, wherein the contrast base material forming the contrast base material layer is formed of glaze or heat-resistant ink.

3. 3. The sagger with a two-dimensional code according to claim 1, wherein the two-dimensional code is a data matrix.

4. a base treatment step of forming a contrast-constituting base material layer to form a contrast between the two-dimensional code formed by a laser marker and the color difference at a required portion of the sagger body; a laser marking step of forming a two-dimensional code on the contrast base material layer using the laser marker; A method for forming a two-dimensional code on a sagger, characterized by including a firing step of firing the sagger body on which the two-dimensional code is formed to create a contrast between the two-dimensional code and the surface of the contrast-creating base material layer.

5. 5. The method for forming a two-dimensional code on a sagger according to claim 4, wherein the contrast base material forming the contrast base material layer is formed of glaze or heat-resistant ink.

6. 6. The method for forming a two-dimensional code on a sagger according to claim 4 or 5, wherein the two-dimensional code is a data matrix.

7. 6. The method for forming a two-dimensional code on a sagger according to claim 4 or 5, wherein the surface preparation step is performed after the molding step of the sagger body, and the laser marking step is performed after the drying step of the sagger body.

8. 6. The method for forming a two-dimensional code on a sagger according to claim 4, wherein the surface preparation step and the laser marking step are carried out after a step of firing the sagger body.

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