Method for decorating timepiece component, timepiece component and watch

Abstract

To provide a method for decorating a timepiece component capable of representing a design having high-class feelings and a timepiece component.SOLUTION: A method for decorating a timepiece component forms a dot pattern on a timepiece component with ink discharged from an ink jet head on the basis of a binarization pattern, the binarization pattern is digital data in which on information for discharging ink to form dots and off information that does not form dots without discharging the ink are set in each pixel, and a first pattern and a second pattern having at least one pixel having on information for forming a dot at the same position are provided. The method includes a first printing step for forming a first dot pattern with ink discharged on the first pattern, and a second printing step for forming a second dot pattern with ink discharged on the second pattern.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a method for decorating a timepiece component, a timepiece component, and a timepiece. [Background technology]

[0002] Patent Document 1 discloses a dial plate in which letters and images are formed on a plated metal plate by inkjet printing. In this patent document 1, a transparent ink-receiving layer is formed on the surface of the plated metal plate, eliminating the need to produce films or printing plates and enabling high-mix, low-cost production of dial plates in a short time. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-111660 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, since letters and images are simply formed by inkjet printing, there is a problem in that it is difficult to express a design with a luxurious feel. [Means for solving the problem]

[0005] The disclosed method for decorating watch parts is a method for decorating watch parts that forms a dot pattern on the watch part using ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern is digital data in which on information for ejecting the ink to form dots and off information for not ejecting the ink to form dots are set for each pixel, and the method includes a first pattern and a second pattern, each having on information for forming the dot at the same position in at least one pixel, and includes a first printing step for printing the first dot pattern using the ink ejected based on the first pattern, and a second printing step for printing the second dot pattern using the ink ejected based on the second pattern.

[0006] The disclosed method for decorating watch parts is a method for decorating watch parts that forms a dot pattern on the watch part using ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern has on information that ejects the ink to form dots and off information that does not eject the ink to form dots set for each pixel, and includes a first pattern and a second pattern that are different digital data from each other, and includes a first printing process that prints the first dot pattern using ink ejected based on the first pattern, and a second printing process that prints the second dot pattern using ink ejected based on the second pattern, and is characterized in that the first dot pattern and the second dot pattern are formed in a position where at least one dot overlaps each other.

[0007] The watch component disclosed herein is a watch component having a dot pattern formed on its surface by ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern is digital data in which on information for ejecting the ink to form dots and off information for not ejecting the ink to form dots are set for each pixel, and the watch component is characterized by having a first pattern and a second pattern in which at least one pixel has on information for forming the dot at the same position, and having a first dot pattern printed by the ink ejected based on the first pattern, and a second dot pattern printed by the ink ejected based on the second pattern.

[0008] The watch component disclosed herein is a watch component having a dot pattern formed on its surface by ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern has on information for ejecting the ink to form dots and off information for not ejecting the ink to form dots set for each pixel, and comprises a first pattern and a second pattern which are different digital data, and has a first dot pattern printed by the ink ejected based on the first pattern, and a second dot pattern printed by the ink ejected based on the second pattern, and is characterized in that the first dot pattern and the second dot pattern are formed in a position where at least one dot overlaps each other. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a front view showing a timepiece according to a first embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing a main part of the dial of the first embodiment. [Figure 3] 5A to 5C are diagrams showing a process for decorating the dial of the first embodiment. [Figure 4] 2A and 2B are an overall view and an enlarged view of a binarized pattern according to the first embodiment. [Figure 5A] FIG. 3 is a cross-sectional view showing the dial after the first printing step of the first embodiment has been performed. [Figure 5B] FIG. 4 is a cross-sectional view showing the dial after the second printing step of the first embodiment has been performed. [Figure 5C] FIG. 10 is a cross-sectional view showing the dial after the third printing step of the first embodiment has been performed. [Figure 5D] FIG. 10 is a cross-sectional view showing the dial after the fourth printing step of the first embodiment has been performed. [Figure 6] FIG. 3 is a diagram showing a binarized pattern, a first dot pattern, and first to fourth dot patterns of the first embodiment. [Figure 7] 10A and 10B are an overall view and an enlarged view of a binarized pattern according to a second embodiment. [Figure 8] FIG. 10 is a diagram showing a binarized pattern, a first dot pattern, and first to fourth dot patterns of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] [First embodiment] A timepiece 1 according to a first embodiment of the present disclosure will now be described with reference to the drawings. 1 is a front view of the timepiece 1. In this embodiment, the timepiece 1 is configured as a wristwatch that is worn on the user's wrist. As shown in Fig. 1, timepiece 1 has a metal case 2. Inside case 2 are a circular dial 10, a second hand 3, a minute hand 4, an hour hand 5, a crown 7, button A 8, and button B 9. Dial 10 is an example of a timepiece component of the present disclosure.

[0011] [Dial] FIG. 2 is an enlarged cross-sectional view showing a main portion of the dial 10. As shown in FIG. 2, the dial 10 is configured with a base material 30. In this embodiment, the base material 30 is formed from one of metal, synthetic resin, shell, etc., or a combination of these. This allows the texture of these materials to be expressed. For example, by forming the base material 30 by carving mother-of-pearl, it is possible to create a design in which the color tone changes depending on the amount of light. Furthermore, a luxurious feel can be achieved by forming the base material 30 from a precious metal such as platinum. Furthermore, costs can be reduced by forming the base material 30 from a metal plate such as brass. In addition, in this embodiment, the surface 31 of the base material 30 is a flat surface, but recesses may be formed by performing striating processing or the like on the surface 31 of the base material 30. The recesses may be formed by, for example, cutting processing, laser processing, chemical removal processing, polishing processing, forging / casting processing, or the like.

[0012] Dots 33 are formed on the surface 31 of the substrate 30 by inkjet printing. In this embodiment, the dots 33 are formed by impacting metal nanoink onto the surface 31 of the substrate 30 according to a binary pattern. When ink is ejected onto a paper medium for printing, the ink penetrates into the paper medium. In contrast, in this embodiment, ink is ejected onto the surface 31 of the substrate 30, which is made of metal or the like, rather than onto a paper medium, so the ejected ink does not penetrate into the substrate 30 but dries on the surface 31. For this reason, as shown in FIG. 2, the dots 33 on the surface 31 are formed in an approximately hemispherical shape.

[0013] In this embodiment, as will be described later, the dots 33 are formed using four binary patterns, a first pattern 51A to a fourth pattern 54A. Each of the binary patterns, the first pattern 51A to the fourth pattern 54A, is digital data in which ON information, which ejects ink to form dots 33, and OFF information, which does not eject ink to form dots 33, are set for each pixel. Each of the first pattern 51A to the fourth pattern 54A has ON information for forming dots 33 at the same position in at least one pixel. Therefore, the dots 33 formed on the surface 31 of the substrate 30 include pixels with on information set in only one pattern, i.e., dots 33A formed with only one ink, pixels with on information set in only two patterns, i.e., dots 33B formed with only two inks, pixels with on information set in only three patterns, i.e., dots 33C formed with only three inks, and pixels with on information set in only four patterns, i.e., dots 33D formed with only four inks. The area of ​​each dot 33A-33D increases as the number of ink droplets ejected onto the same pixel increases. As the ink area increases, the color is emphasized, and the intensity of the color is adjusted by the dots 33A-33D. In this way, by printing the metal nanoink onto the surface 31 of the substrate 30 by inkjet printing, a pattern corresponding to the binary pattern is printed. In an inkjet printer, it is possible to change the amount of ink ejected by changing the drive pattern that drives the inkjet head, but in this embodiment, the amount of ink, that is, the size of the dot 33, is changed by changing the number of ink droplets ejected onto each pixel. For this reason, in this embodiment, the drive pattern that drives the inkjet head is set to the same pattern.

[0014] Here, metal nanoink is a composition in which metal nanoparticles are dispersed in a dispersion medium. Metal nanoparticles refer to metal particles with a particle size ranging from 1 nm to 1 μm, and are preferably composed of any one of gold, silver, copper, and platinum. This allows for the creation of glossy patterns and luxurious designs.

[0015] In this embodiment, the dots 33A are formed to have a diameter of 11 μm or more and 60 μm or less, and more preferably, a diameter of 20 μm or more and 40 μm or less. Generally, even if a pattern is expressed using dots with a diameter of 10 μm or less, the dot diameter is too small, making it difficult to visually recognize the pattern as being made up of dots. In this embodiment, by forming the dots 33A so that their diameter is 11 μm or more and 60 μm or less, it is possible to express a pattern made up of fine dots 33A that are visible. Note that the diameters of dots 33B to 33D formed by overlapping multiple inks in the same pixel are larger than the diameter of dot 33A, and may therefore be 60 μm or more.

[0016] [Dial decoration method] FIG. 3 is a diagram showing the process of decorating the dial 10, and FIG. 4 is a diagram showing an overall view and an enlarged view of the binarized pattern. 3, four arc-shaped grooves 21 are machined to cut out a disk-shaped base material 30 from a rectangular plate-shaped substrate 20. The substrate 20 is made of a metal material such as brass. Therefore, the base material 30 is also made of a metal material such as brass, and is connected to the outer substrate 20 at four connecting portions 22. Next, a first lamination step is performed to form a first layer 40 on the surface 31 of the base material 30 by plating or painting. In the first lamination step, the first layer 40 may be formed by nickel plating or the like, or may be formed by painting a colored paint containing a pigment, or may be formed by further plating and painting.

[0017] Next, a printing step is performed in which a second layer 50 is formed on the surface 31 of the substrate 30 using four binary patterns, first pattern 51A to fourth pattern 54A, which have been prepared in advance, and metal nanoink. The second layer 50 is composed of a first dot pattern 51 printed using the first pattern 51A, a second dot pattern 52 printed using the second pattern 52A, a third dot pattern 53 printed using the third pattern 53A, and a fourth dot pattern 54 printed using the fourth pattern 54A. As shown in Fig. 4, the first pattern 51A is a pattern that evokes a starry sky and shooting stars. The second pattern 52A is a pattern in which some pixels of the first pattern 51A are set to off information. The third pattern 53A is a pattern in which some pixels of the second pattern 52A are set to off information. The fourth pattern 54A is a pattern in which some pixels of the third pattern 53A are set to off information. 4, in the first pattern 51A to the fourth pattern 54A, ON information that ejects ink to form dots is represented in black, and OFF information that does not eject ink to form dots is represented in white. Therefore, in the overall view of FIG. 4, the first pattern 51A to the fourth pattern 54A imitate the first dot pattern 51 to the fourth dot pattern 54. The enlarged view of Fig. 4 is an enlarged view of a rectangular region 55A in the overall view of Fig. 4. As shown in this enlarged view, there are pixels in which ON information is set only in the first pattern 51A, pixels in which ON information is set only in the first pattern 51A and the second pattern 52A, pixels in which ON information is set in the first pattern 51A, the second pattern 52A, and the third pattern 53A, and pixels in which ON information is set in all of the first pattern 51A to the fourth pattern 54A.

[0018] 5A to 5D are cross-sectional views showing dots 33 formed on the surface 31 of the substrate 30 by the printing process for forming the second layer 50, that is, by the printing processes using the first pattern 51A to the fourth pattern 54A. As shown in FIG. 5A, a first printing step is performed, in which metal nanoink is ejected from an inkjet head based on a first pattern 51A to print a first dot pattern 51, thereby forming dots 33A on the surface 31 of the substrate 30. 5B, a second printing step is then performed in which metal nanoink is ejected from an inkjet head based on the second pattern 52A to print a second dot pattern 52, thereby forming dots 33B on the surface 31 of the substrate 30. As a result, among the pixels in which dots 33A are formed in the first pattern 51A, pixels in which ink is not ejected in the second pattern 52A leave dots 33A as they are, and pixels in which ink is ejected in the second pattern 52A have new ink layered on top of dot 33A, forming dots 33B with an expanded area. 5C, a third printing step is then performed in which metal nanoink is ejected from an inkjet head based on the third pattern 53A to print a third dot pattern 53, thereby forming dots 33C on the surface 31 of the substrate 30. At this time, since the third pattern 53A is formed by setting some of the pixels of the second pattern 52A to OFF information, among the pixels in the second pattern 52A in which dots 33B were formed, the pixels in which ink was not ejected in the third pattern 53A leave the dots 33B as they are, and the pixels in which ink was ejected in the third pattern 53A have new ink layered on top of the dots 33B, forming dots 33C with an expanded area. 5D, a fourth printing step is then performed in which metal nanoink is ejected from an inkjet head based on the fourth pattern 54A to print a fourth dot pattern 54, thereby forming dots 33D on the surface 31 of the substrate 30. At this time, since the fourth pattern 54A is obtained by setting some of the pixels of the third pattern 53A to OFF information, among the pixels in the third pattern 53A where dots 33C were formed, dots 33C remain as they are in the pixels where ink is not ejected in the fourth pattern 54A, and new ink is layered on top of dots 33C in the pixels where ink is ejected in the fourth pattern 54A, forming dots 33D with an expanded area. Each printing process includes an ink ejection process for ejecting ink and a drying process for drying the ejected ink. When printing on a substrate 30 made of metal or the like, as in this embodiment, unlike when printing on paper, the ink does not penetrate the substrate 30, so the ink must be dried while still on the surface 31. For this reason, in this embodiment, the printing process can be performed by extending the drying time in the drying process or by raising the temperature, compared to when printing on paper. To raise the temperature, the printing process, including the drying process, can be performed in a high-temperature atmosphere or by warming the substrate 30 to be printed on. As a result, the surface 31 of the substrate 30 is provided with pixels in which dots 33A are formed with only one ink according to the first pattern 51A, pixels formed with dots 33B in which two inks according to the two patterns, the first pattern 51A and the second pattern 52A, overlap each other, pixels formed with dots 33C in which three inks according to the three patterns, the first pattern 51A, the second pattern 52A and the third pattern 53A, overlap each other, and pixels formed with dots 33D in which four inks according to the four patterns, the first pattern 51A to the fourth pattern 54A, overlap each other. By carrying out the above inkjet printing, the first dot pattern 51 to the fourth dot pattern 54 can be printed to display a predetermined pattern that resembles a starry sky and shooting stars. Finally, as shown in Fig. 3, a transparent layer forming step is carried out to form a transparent film 60 on the surface 31 of the substrate 30 on which the dots 33 have been formed. In the transparent layer forming step, the transparent film 60 is formed by applying a transparent synthetic resin material by spin coating or the like. As a result, the first dot pattern 51 to the fourth dot pattern 54 printed on the surface 31 of the substrate 30 are protected by the transparent film 60. The surface of the applied transparent film 60 may be polished to improve the design.

[0019] Figure 6 shows binary data indicating a printed pattern formed by first pattern 51A to fourth pattern 54A, a first dot pattern 51 printed using only first pattern 51A to form dots 33 on the surface 31 of substrate 30, and first dot patterns 51 to fourth dot patterns 54 printed using first pattern 51A to fourth pattern 54A to form dots 33 on the surface 31 of substrate 30. 6, compared to the first dot pattern, the first to fourth dot patterns have larger dots 33 in pixel areas where the metal nanoink is overlaid, and the color of the dots 33 made of the metal nanoink is stronger. This allows the color of the dots 33 made of the metal nanoink to be adjusted for each pixel, improving design and visibility. Furthermore, in this embodiment, the dots 33 are formed on the surface 31 of the substrate 30 using glossy metal nanoink, resulting in a delicate, highly designed, and luxurious appearance.

[0020] [Effects of the first embodiment] According to this embodiment, the following effects can be obtained. Dots 33 are formed on the surface 31 of the substrate 30 by printing first dot patterns 51 to 54 based on four types of binary patterns, first pattern 51A to fourth pattern 54A. Since the first pattern 51A to fourth pattern 54A contain ON information that forms dots 33 at the same position, pixels where only one ink is ejected and pixels where two to four inks are ejected in an overlapping manner and have a larger area are formed, allowing for printing with a mixture of pixels where dots 33 are different sizes. This makes it possible to adjust the intensity of ink coloring, improving design and visibility compared to printing with only one pattern, and creating a luxurious design. Furthermore, since the size of the dots 33 is adjusted depending on the number of ink droplets ejected onto the same pixel, the drive pattern of the inkjet head can be made uniform and easily controlled.

[0021] The dots 33 are made of metal nanoink, which allows the dots 33 formed according to the binary pattern to have a glossy appearance. In particular, the metal nanoink contains one of gold, silver, copper, and platinum, making it possible to express a glossy dot pattern, resulting in a delicate, highly designed, and luxurious appearance.

[0022] The first layer 40 is formed on the surface of the base material 30, and the first dot patterns 51 to 54 are printed on the first layer 40, so the color, gloss, pattern, etc. of the base first layer 40 can be freely set, and the design can be further improved by combining the first dot patterns 51 to 54. For example, when creating a dial 10 that evokes a starry sky, the first layer 40 can be formed with a dark-colored paint that evokes the night sky, and the dot pattern can be printed with metallic nano-ink, making the metallic glossy dot pattern stand out and emphasizing the image of the starry sky.

[0023] In this embodiment, the transparent film 60 is formed to cover the second layer 50 made up of the first dot pattern 51 to the fourth dot pattern 54, thereby protecting the first dot pattern 51 to the fourth dot pattern 54. Furthermore, the transparent film 60 can be polished by lapping, which can further enhance the design.

[0024] [Second embodiment] Next, a second embodiment of the present disclosure will be described with reference to Figures 7 and 8. In the second embodiment, the same or similar configurations as those in the first embodiment are denoted by the same reference numerals, and descriptions thereof will be omitted or simplified. In the second embodiment, the first dot pattern 71 to the fourth dot pattern 74 are printed based on a binary pattern in which dots are formed radially from the center of the plane of the substrate 30. Therefore, the second embodiment differs from the first embodiment in that the types of patterns formed by the dots 33 are different.

[0025] Fig. 7 shows an overall view and an enlarged view of first to fourth patterns 71A to 74A of the second embodiment. Note that the enlarged view in Fig. 7 is an enlarged view of a rectangular area 75A in the overall view. Fig. 8 shows a state in which first to fourth patterns 71A to 74A, which are binarized data, a first dot pattern 71 based on the first pattern 71A, and a first dot pattern 71, a second dot pattern 72, a third dot pattern 73, and a fourth dot pattern 74 based on the first to fourth patterns 71A to 74A are stacked. As shown in Fig. 7, the first pattern 71A is a pattern that evokes fireworks or shooting stars. The second pattern 72A is a pattern in which some pixels of the first pattern 71A are set to off information. The third pattern 73A is a pattern in which some pixels of the second pattern 72A are set to off information. The fourth pattern 74A is a pattern in which some pixels of the third pattern 73A are set to off information.

[0026] For this reason, as shown in the enlarged portion of Figure 7, there are pixels in which on information is set only in the first pattern 71A, pixels in which on information is set only in the first pattern 71A and the second pattern 72A, pixels in which on information is set in the first pattern 71A, the second pattern 72A, and the third pattern 73A, and pixels in which on information is set in all patterns from the first pattern 71A to the fourth pattern 74A. As a result, as in the first embodiment, the surface 31 of the substrate 30 is provided with pixels in which dots 33A are formed using only the ink of the first pattern 71A, pixels in which dots 33B are formed using two inks of the two patterns, the first pattern 71A and the second pattern 72A, pixels in which dots 33C are formed using three inks of the first pattern 71A, the second pattern 72A, and the third pattern 73A, and pixels in which dots 33D are formed using four inks of the first pattern 71A to the fourth pattern 74A. By carrying out the above inkjet printing, dots 33 are formed to display a predetermined radial pattern, thereby expressing a desired design.

[0027] [Effects of the second embodiment] According to the second embodiment, it is possible to obtain the same effects as those of the first embodiment. In addition, a pattern is displayed by forming dots 33 along a radial binary pattern on the surface 31 of the base material 30, and the dots 33 with different brightnesses can express a complex design with adjusted color intensity.

[0028] [Variations] The present disclosure is not limited to the above-described embodiments, and includes modifications, improvements, etc. within the scope of achieving the object of the present disclosure.

[0029] In the above-described embodiments, four different patterns, from the first pattern 51A, 71A to the fourth pattern 54A, 74A, were printed. However, the same pattern may be printed multiple times. For example, the first pattern 51A, 71A may be printed twice and the second pattern 52A, 72A may be printed twice. Alternatively, the first pattern 51A, 71A may be printed once, the second pattern 52A, 72A may be printed once, and the first pattern 51A, 71A may be printed once. Furthermore, the first pattern 51A, 71A may be printed once and the second pattern 52A, 72A may be printed once. In other words, it is sufficient to print using at least two patterns, the first pattern and the second pattern. Furthermore, in each of the above embodiments, the second to fourth patterns were set by gradually decreasing the on information from the first pattern, but the second to fourth patterns may also be set by gradually increasing the on information from the first pattern, or the on information and off information may be set randomly from the first to fourth patterns, and each binary pattern only needs to have at least one pixel of on information that forms a dot in the same position. Although the first layer 40 is provided on the base material 30 by plating or painting with paint, the second layer 50 may be formed without providing the first layer 40. For example, by forming the base material 30 from mother-of-pearl and printing a dot pattern on the surface of this mother-of-pearl, it is possible to form a dial design that makes use of the texture of the mother-of-pearl.

[0030] The ink for forming the dots 33 is not limited to metal nano-ink, and the type of ink may be selected depending on the pattern to be printed, the type of substrate, and the like. In each of the above-described embodiments, a dark color may be added to the substrate 30, and the dot pattern may be displayed using ink with a metallic luster. This allows the dark color to be added to the substrate 30, making the dot pattern with a metallic luster stand out. In particular, by using a black substrate and displaying the dot pattern using ink containing gold or silver, it is possible to emphasize an image resembling a starry sky or fireworks.

[0031] In the above-described embodiments, the timepiece component of the present disclosure is configured as the dial 10, but is not limited to this. For example, the timepiece component of the present disclosure may be configured as any one of the case, dial ring, bezel, movement and its main plate, hands, abbreviations, and oscillating weight.

[0032] Summary of this disclosure The disclosed method for decorating watch parts is a method for decorating watch parts that forms a dot pattern on the watch part using ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern is digital data in which on information for ejecting the ink to form dots and off information for not ejecting the ink to form dots are set for each pixel, and the method includes a first pattern and a second pattern, each having on information for forming the dot at the same position in at least one pixel, and includes a first printing step for printing the first dot pattern using the ink ejected based on the first pattern, and a second printing step for printing the second dot pattern using the ink ejected based on the second pattern. According to the present disclosure, in the first printing process, ink is ejected from an inkjet head based on a first pattern to form a first dot pattern, and in the second printing process, ink is ejected from an inkjet head based on a second pattern to form a second dot pattern. Since the first and second patterns contain ON information for forming dots at the same positions, some pixels are formed with overlapping ink ejected to expand the area, while others are formed with only one ink ejected, resulting in a mixture of pixels with different dot sizes. This allows the intensity of ink coloring to be adjusted, improving design and visibility compared to printing with only one pattern, and enabling the creation of a luxurious design.

[0033] The disclosed method for decorating watch parts is a method for decorating watch parts that forms a dot pattern on the watch part using ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern has on information that ejects the ink to form dots and off information that does not eject the ink to form dots set for each pixel, and includes a first pattern and a second pattern that are different digital data from each other, and includes a first printing process that prints the first dot pattern using ink ejected based on the first pattern, and a second printing process that prints the second dot pattern using ink ejected based on the second pattern, and is characterized in that the first dot pattern and the second dot pattern are formed in a position where at least one dot overlaps each other. According to the present disclosure, in the first printing process, ink is ejected from an inkjet head based on a first pattern to form a first dot pattern, and in the second printing process, ink is ejected from an inkjet head based on a second pattern to form a second dot pattern. In this process, the first and second patterns are formed in positions where at least one dot overlaps with the other, resulting in the formation of pixels with a larger area due to the overlapping ink ejection and pixels where only one ink is ejected, allowing for printing with a mixture of pixels with different dot sizes. This allows for the intensity of ink coloring to be adjusted, improving design and visibility compared to printing with only one pattern, and enabling the creation of a luxurious design.

[0034] In the method for decorating a watch component of the present disclosure, the ink is preferably a metal nano-ink. In the present disclosure, the ink is a metal nanoink, which allows the formed dots to have a glossy finish. As a result, as the number of inks ejected onto the same pixel increases, the dot area can be increased and the color intensity can be adjusted, resulting in a delicate, highly designed, and luxurious appearance.

[0035] In the method for decorating a watch part of the present disclosure, it is preferable that the watch part has a base material, and that before the first printing step, a first lamination step is carried out in which a first layer is laminated on the surface of the base material by plating or painting. In the present disclosure, the first lamination process involves laminating a first layer by plating or painting onto the surface of the base material, so that the color, gloss, pattern, etc. of the first layer, which serves as the base for the dot pattern formed by ejecting ink, can be freely set, and by forming the dot pattern on that base, the design of the watch component can be further improved.

[0036] The method for decorating a watch component of the present disclosure may include a transparent layer forming step of forming a transparent layer that covers the first dot pattern and the second dot pattern. In the present disclosure, a transparent layer is formed to cover the dot pattern, so that the dot pattern can be protected and the glossiness can be adjusted, thereby improving the design.

[0037] The watch component disclosed herein is a watch component having a dot pattern formed on its surface by ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern is digital data in which on information for ejecting the ink to form dots and off information for not ejecting the ink to form dots are set for each pixel, and the watch component is characterized by having a first pattern and a second pattern in which at least one pixel has on information for forming the dot at the same position, and having a first dot pattern printed by the ink ejected based on the first pattern, and a second dot pattern printed by the ink ejected based on the second pattern. The watch component of the present disclosure has a first dot pattern formed by ink ejected from an inkjet head based on a first pattern, and a second dot pattern formed by ink ejected from an inkjet head based on a second pattern. Since the first and second patterns contain ON information that forms dots in the same position, pixels with a larger area due to overlapping ink ejection are formed, and pixels with only one ink ejection are formed, allowing for printing with a mixture of pixels with different dot sizes. This allows for adjustment of the ink color intensity, improving design and visibility compared to printing with only one pattern, and creating a luxurious design.

[0038] The watch component disclosed herein is a watch component having a dot pattern formed on its surface by ink ejected from an inkjet head based on a binary pattern, wherein the binary pattern has on information for ejecting the ink to form dots and off information for not ejecting the ink to form dots set for each pixel, and comprises a first pattern and a second pattern which are different digital data, and has a first dot pattern printed by the ink ejected based on the first pattern, and a second dot pattern printed by the ink ejected based on the second pattern, and is characterized in that the first dot pattern and the second dot pattern are formed in a position where at least one dot overlaps each other. The watch component of the present disclosure has a first dot pattern formed by ink ejected from an inkjet head based on a first pattern, and a second dot pattern formed by ink ejected from an inkjet head based on a second pattern. In this case, the first dot pattern and the second dot pattern are formed in positions where at least one dot overlaps each other, resulting in the formation of pixels with a larger area due to the ink being ejected in an overlapping manner, and pixels where only one ink is ejected, allowing for printing with a mixture of pixels with different dot sizes. This allows for the intensity of the ink color to be adjusted, improving design and visibility compared to printing with only one pattern, and creating a luxurious design.

[0039] In the watch component of the present disclosure, the ink is preferably a metal nano-ink. In the present disclosure, the ink is a metal nanoink, which allows the formed dots to have a glossy finish. As a result, as the number of inks ejected onto the same pixel increases, the dot area can be increased and the color intensity can be adjusted, resulting in a delicate, highly designed, and luxurious appearance.

[0040] The watch component of the present disclosure may have a base material, a first layer formed on the surface of the base material by plating or painting, and the first dot pattern and the second dot pattern printed on the surface of the first layer. In the present disclosure, a first layer is formed on the surface of a base material by plating or painting, and a first dot pattern and a second dot pattern are formed on the surface of this first layer. This allows the gloss and color of the first layer, which serves as the base for each dot pattern, to be freely set, thereby improving the design in combination with each dot pattern.

[0041] The watch component of the present disclosure may have a transparent layer that covers the first dot pattern and the second dot pattern. In the present disclosure, a transparent layer covering each dot pattern is provided, thereby protecting each dot pattern formed by inkjet printing, and the glossiness can be adjusted, thereby enhancing the design.

[0042] The timepiece of the present disclosure is characterized by including the timepiece component described above. According to the present disclosure, a luxury watch can be provided by including timepiece components with a luxurious design that can improve design and visibility. [Explanation of symbols]

[0043] 1...watch, 10...dial, 30...base material, 31...surface, 33...dots, 33A...dots, 33B...dots, 33C...dots, 33D...dots, 40...first layer, 50...second layer, 51...first dot pattern, 51A...first pattern, 52...second dot pattern, 52A...second pattern, 53...third dot pattern, 53A...third pattern, 54...fourth dot pattern, 54A...fourth pattern, 60...transparent film, 71...first dot pattern, 71A...first pattern, 72...second dot pattern, 72A...second pattern, 73...third dot pattern, 73A...third pattern, 74...fourth dot pattern, 74A...fourth pattern.

Claims

1. A method for decorating a watch component, comprising the steps of: forming a dot pattern on the watch component using ink ejected from an inkjet head based on a binary pattern; the binary pattern is digital data in which ON information for forming dots by ejecting the ink and OFF information for not forming dots by not ejecting the ink are set for each pixel, and the binary pattern includes a first pattern and a second pattern, each having ON information for forming dots at the same position in at least one pixel; a first printing step of printing a first dot pattern using the ink ejected based on the first pattern; a second printing step of printing a second dot pattern using the ink ejected based on the second pattern; A method for decorating a watch component, comprising:

2. A method for decorating a watch component, comprising the steps of: forming a dot pattern on the watch component using ink ejected from an inkjet head based on a binary pattern; the binary pattern includes a first pattern and a second pattern, which are digital data different from each other, and are set for each pixel as ON information for ejecting the ink to form dots and OFF information for not ejecting the ink to form dots, and a first printing step of printing a first dot pattern using the ink ejected based on the first pattern; a second printing step of printing a second dot pattern using the ink ejected based on the second pattern, The first dot pattern and the second dot pattern are formed at positions where at least one dot overlaps with each other. A method for decorating a watch part, comprising:

3. The method for decorating a watch component according to claim 1 or 2, The method for decorating watch components, wherein the ink is a metal nano-ink.

4. The method for decorating a watch component according to claim 1 or 2, The timepiece component has a substrate, Before the first printing step, The method for decorating a watch component includes a first lamination step of laminating a first layer by plating or painting on the surface of the base material.

5. The method for decorating a watch component according to claim 1 or 2, A method for decorating a watch component, comprising a transparent layer forming step of forming a transparent layer that covers the first dot pattern and the second dot pattern.

6. A watch component having a dot pattern formed on its surface by ink ejected from an inkjet head based on a binary pattern, the binary pattern is digital data in which ON information for forming dots by ejecting the ink and OFF information for not forming dots by not ejecting the ink are set for each pixel, and the binary pattern includes a first pattern and a second pattern, each having ON information for forming dots at the same position in at least one pixel; a first dot pattern printed with the ink ejected based on the first pattern; a second dot pattern printed with the ink ejected based on the second pattern; A watch component having the following construction.

7. A watch component having a dot pattern formed on its surface by ink ejected from an inkjet head based on a binary pattern, the binary pattern includes a first pattern and a second pattern, which are digital data different from each other, and are set for each pixel as ON information for ejecting the ink to form dots and OFF information for not ejecting the ink to form dots, and a first dot pattern printed with the ink ejected based on the first pattern; a second dot pattern printed with the ink ejected based on the second pattern, The first dot pattern and the second dot pattern are formed in a position where at least one dot overlaps with each other.

8. The timepiece component according to claim 6 or 7, The ink is a metal nano-ink.

9. The timepiece component according to claim 6 or 7, A substrate; a first layer formed on the surface of the base material by plating or painting; A watch component having the first dot pattern and the second dot pattern printed on the surface of the first layer.

10. The timepiece component according to claim 6 or 7, A watch component having a transparent layer covering the first dot pattern and the second dot pattern.

11. A timepiece comprising the timepiece component according to claim 6 or 7.

Images