JP3096013U - Ornaments - Google Patents

Abstract

(57) [Abstract] (With correction) [Problem] To provide a design that makes use of the texture of aluminum material, has no bleeding, and has good fixability. SOLUTION: This decorative article 10 has a base member 1 made of an aluminum material, an alumite layer 2 having a thickness of 10 to 25 μm formed on the base member 1, and ink jetted from a jet printing apparatus. And a decorative portion 3 directly printed on the surface of the alumite layer 2. The aluminum material is a material having an aluminum content of 99% or more, the alumite layer 2 has a thickness of 15 to 20 μm, and there are steps A, B or recesses in a part of the decorative portion 3, and the steps A, B
Alternatively, if ink printing is also performed on the concave portion, the fixing property of the decorative portion 3 is improved, and the decorative portion 3 becomes excellent in light resistance, weather resistance, etc., and has a beautiful appearance,
Product value is further improved.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a decorative article having a surface printed on an aluminum material.

[0002]

[Prior art]

  In recent years, due to the sophistication of printing technology, faithful and precise drawings and pictures have been formed on the surface. Many products can be seen. In Japan, the so-called pre-play that tickles playfulness. Kura (printed on the spot with many photographic images arranged on the sheet), etc. Is also popular. From this point of view, products with a detailed image on the photographic image What we can offer has an important meaning in the sales strategy of our products.

[0003]   On the other hand, from the past, commercial products such as images drawn on materials such as wood, glass and metal have been used. Various products are known. The wood material is inlaid and engraved. Also, Stained glass and the like are known as those that use a lumber. Also, in the case of metal materials , Silk printing is used.

[0004]   Aluminum is one of the metal materials. To make a pattern on the aluminum material, Conventionally, a method called photography, for example, a water-soluble photosensitizer on an anodized substrate is used. Is applied, exposed to light, developed, and then colored with a dye or pigment. this In the method, using multiple original plates, repeat the above steps corresponding to the number of original plates. Then, a figure or picture is formed on the base material, or a method called an infiltration method, for example, a screen. Use a printer to replace penetrating ink while replacing multiple printing screens. It is used, printed and colored to form the required pattern on the substrate.

[0005]   In addition, in Patent Document 1 (Japanese Patent Laid-Open No. 11-326548), a discharge device is used. There is a disclosure of a method for forming a pattern on a metal material such as an aluminum substrate. Well In addition, in Patent Document 2 (JP 2001-113626 A), an alumite layer is formed. After forming a thermoplastic resin on the alumite layer, the adhesive layer is used to form the thermoplastic resin. An invention for forming a ink-receiving layer is disclosed. In the present invention, this ink receiving layer A colored pattern with pigment ink is applied to. Furthermore, Patent Document 3 (Japanese Patent Laid-Open No. 2002-2002) 19260 gazette), after forming a soft alumite, , An invention of printing using a dye-based ink is disclosed.

[0006]

[Patent Document 1] Japanese Patent Laid-Open No. 11-326548 (page 6, paragraph number 0050, 0051)

[Patent Document 2] Japanese Patent Laid-Open No. 2001-113626 (abstract)

[Patent Document 3] Japanese Unexamined Patent Publication No. 2002-19260 (Summary)

[0007]

[Problems to be solved by the device]

  Conventionally, the above methods have been adopted, but in these methods, There are various problems. That is, the photographic method, the screen printing method and the patent document 1 In the invention described above, the target member is, for example, a curved surface, an uneven surface, or a step surface Etc., it is practically impossible to give a predetermined pattern to that part as well Therefore, it is necessary to avoid that portion for processing. Because of this, it's interesting It is not possible to print with certainty, and the range of development of the product to be printed is limited.

[0008]   In the case of photographic method and screen printing, an original plate by photoengraving is required, and these are indispensable. It is necessary to create the original plate for each number of required colors. Also, the number of that color As the number increases, more elaborate jigs are needed to align the patterns, so Still, it is difficult to obtain a product that is satisfactory in sophistication. Also, color pattern As a printing original plate used for, use a mesh made of metal or fiber Since an original plate that has been separated into multiple colors (for example, a screen printing plate) will be used, , It is not enough to reproduce a detailed pattern.

[0009]   Further, in the invention described in Patent Document 1, ink is applied to the surface of a metal material such as aluminum. By forming a receptive layer and drawing an image with an inkjet device, it is possible to make sure The advantage is that the board can be easily manufactured. But this In Patent Document 1, an aluminum substrate is subjected to an alumite treatment to obtain an alumina porous material. It is only described that an ink receiving layer consisting of No product is manufactured by this method. This is because the alumina porous layer is sufficient. This is because print quality cannot be obtained. For this reason, at present, before printing The surface is undercoated. Thus, theoretically, the alumina porous layer Although it is possible to perform inkjet printing directly, in reality, before printing Be sure to apply an undercoat.

[0010]   Further, in Patent Document 2, the ink receiving layer Iwayu is used as an adhesive on the alumite layer. Undercoat is applied. Thus, the undercoat on the aluminum surface Print quality is considerably improved, but the quality of the aluminum material is impaired. . If you try to avoid this problem and apply an undercoat only to the printed part, Then, it is necessary to align the undercoated part with the printed part, Problems such as increased manufacturing time and quality deterioration due to misalignment between the printed part and the undercoat part Problems arise.

[0011]   Therefore, conventionally, the undercoat is applied to the entire surface of the aluminum material. This conclusion As a result, when printing is performed on the aluminum material, the texture of the aluminum is impaired. this To avoid this, the above-mentioned photographic method and screen printing are used for aluminum materials. ing. This conventional method has various problems as described above. Well Recently, a method of drawing a pattern with a laser and sticking black ink to the drawing area Although the method has been developed, it has a problem that it cannot deal with colorization.

[0012]   Further, the invention described in Patent Document 3 uses a pigment when printing on a clock face. If the particles are large, the particles are so large that they are not well received in the pores of the receptive layer and are difficult to settle. The invention described in Patent Document 1 is intended to improve the problems of the invention described in Patent Document 1, and the invention described in Patent Document 3 is , Surely making that improvement. However, according to the present invention, for example, the alumite layer (a While heating the aluminum substrate with the aluminum oxide film), as an ink Since the invention described in Patent Document 1 is improved by using a dye or the like, heating It requires a device and is limited to dye-based inks. Moreover, the substrate It is necessary to heat the substrate evenly when heating There is also a problem that it takes time to set the conditions.

[0013]   The present invention was created to solve the above problems, and its purpose is to However, while utilizing the texture of the aluminum material, there is no bleeding and a good fixing property. It is to provide a decorative article having.

[0014]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the decorative article of the present invention comprises a base made of aluminum material. A material part and an alumite layer having a thickness of 10 to 25 μm formed on the base material part, It is printed directly on the surface of the alumite layer by the ink ejected from the spray printing device. And a decorative part.

[0015]   This decorative article has an anodized layer thickness of 10 to 25 μm. The printed image (decorative part) does not bleed even if a pigment is used for the ink and has good fixing properties. It will be one. Moreover, since the thickness of the alumite layer is 25 μm or less, Even when the surface of the material is mirror-finished, the glossiness of the mirror surface does not deteriorate.

[0016]   In addition to the above-mentioned invention, another invention is that the alumite layer has a mirror-finished base material. And the diameter of the pores formed in the alumite layer is 0.02 A particle diameter that includes ink with a diameter of 0.025 μm and that makes the ink approximately the same as the diameter of the pores. The color ink is composed of an inorganic pigment having

[0017]   By adopting this configuration, it is possible to obtain a decorative article having excellent light resistance and weather resistance. Moreover, it is possible to make a decorative article that makes the best use of the luster (gloss) of the base material portion.

[0018]   Furthermore, in addition to the ornaments of the above-mentioned inventions, other inventions are formed on the surface of the alumite layer. Ink adheres to the walls and bottom of the formed pores, and air is closed inside the pores. I try not to be diligent.

[0019]   The decorative article of the present invention has a good fixing property of the printed decorative portion. For this reason The product must have sufficient quality without the need for sealing treatment or top coat. You can

[0020]   In addition, in addition to the ornaments of the above-mentioned invention, another invention is to use aluminum material as an aluminum material. A material having a content of 99% or more of aluminum and an alumite layer of 15 to 20 μm, There is a step or recess in part of the decorative part, and ink printing is also possible on that step or recess. Has been done.

[0021]   In this invention, the appearance of the printed decorative portion is the same as when it is printed on a blank sheet of paper. Therefore, it looks very beautiful. The film thickness of the alumite layer is 20 μm. Since it is below, bleeding is further reduced and the film thickness is 15 μm or more. Therefore, the adhesion of the ink is further improved. In addition, in the step or recess Since it is also printed, the taste and taste will increase.

[0022]   In addition, the aluminum material is a material having an aluminum content of 99% or more, The alumite layer is an alumite layer formed by a sulfuric acid bath and is used as a part of the decorative part. When a step or a recess is present and ink printing is also performed on the step or the recess, In addition, it is preferable that the pigment particles of the ink are caught in the pores of the alumite layer. Good

[0023]   When this configuration is adopted, the appearance of the printed decorative part is the same as when printed on a blank sheet of paper. It looks similar and looks very pretty. Moreover, an alumite layer is formed By using a sulfuric acid bath, it is possible to wear a product with a good-looking appearance and excellent wear resistance. You can get ornaments. In addition, the pigment of the ink gets stuck in the pores, It is possible to print and form a decorative portion that has few defects and has good fixing properties on an aluminum material. It In addition, since printing is done on the stepped portion or the recessed portion, the taste and taste are increased. Becomes

[0024]   In addition, the aluminum material is a material having an aluminum content of 99% or more, The alumite layer is an alumite layer formed by an oxalic acid bath and is used as a part of the decorative part. When a step or a recess is present and ink printing is also performed on the step or the recess, In addition, it is preferably used for food.

[0025]   According to this invention, the appearance of the printed decoration part is the same as when printed on a blank sheet of paper. And it looks very beautiful. Moreover, an alumite layer is formed At this time, if an oxalic acid bath is used, the alumite layer will be easily formed and the oxalic acid bath will be used. It will be a good choice for the food industry, which has long been adopted. In addition, steps or recesses The prints are also printed on the parts, which increases the taste and taste.

[0026]   In addition, ink pigment particles were caught in the pores of the alumite layer of the oxalic acid bath. Preferably.

[0027]   In this way, by making the ink pigment stick to the pores, bleeding is reduced. In addition, the decorative portion having good fixing property can be formed by printing on the aluminum material.

[0028]   Also, the ink printing dpi forming the decorative portion is 800 to 2880 dpi. Preferably.

[0029]   When this kind of ink of dpi is adopted, the fixing property of the ink becomes excellent. For example, in the case of 1440 dpi, the dot diameter of the ink is about 17 μm, which is suitable. There will be frequent pigments and vehicles.

[0030]

[Embodiment of device]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. .

[0031]   FIG. 1 shows a perspective view of a main part of a decorative article 10 according to an embodiment of the present invention. Figure 2 This ornament 10 is cut along the line X-X in FIG. 1 and its cross section is observed. It

[0032]   This ornament 10 is used as a ruler and has the basic structure of the product. Base material part 1 to be maintained and alumite of 15 to 20 μm formed on the base material part 1 Layer 2 and the surface of this alumite layer 2 are decorated with an inkjet printer by a decorative portion. And the printed color image 3. The alumite layer 2 is a base material. It is an aluminum oxide film formed by oxidizing the surface of part 1. Are formed to be porous. In addition, the color image 3 is formed by a large number of ink droplets 3a. It is configured. In FIG. 2, when the printing ink 3a is shown as having a granular shape, Both of them schematically show the state of being attached.

[0033]   In this decorative article 10, the thickness of the alumite layer 2 (film thickness) is 15 to 20 μm. An inorganic pigment is used as the ink. In addition, a step is formed on a part of the ornament 10. A and B are provided, and the color image 3 is also printed on both the step portions A and B.

[0034]    Next, the conditions and manufacturing method for manufacturing the decorative article 10 will be described.

[0035]   The decorative portion, that is, the base material portion 1 on which the color image 3 is applied is made of an aluminum material. ing. When choosing which aluminum material to use, choose chemicals and human sweat. Chemical corrosion resistance such as, machinability, such as press working, cutting, polishing Machining characteristics, anodizing characteristics, and finishing after anodizing It is determined in consideration of the appearance of the eddy, such as color tone and surface roughness.

[0036]   Furthermore, the aluminum material used as the base material part 1 has the following points. Be carefully selected. That is, the added metal of the aluminum body or Impurities contained as a contraceptive, especially metals that show color when ionized, such as copper For those with a lot of iron or iron, the color tone after anodizing becomes yellowish or dull In some cases, it has a considerable effect on the quality of the product, so it should be avoided. However , Magnesium has little influence on the color tone and the reflectance of the oxide film. You don't need to worry too much to select it as a characteristic of.

[0037]   In the embodiment of the present invention, the material contains 99.00% or more of aluminum. Amounts such as A-1050 and A-1052 are selected. These materials are , A nearly white or nearly colorless film (alumite layer 2) is formed by anodic oxidation Can be made. For this reason, the printing described below will be performed without chemical polishing. The appearance of the color image 3 is not much different from the original image. The appearance is If you don't take it into consideration, aluminum alloy with high purity such as A-1050, A-1052, etc. Not aluminum, but any other low purity aluminum material with a ground color other than white May be. Precise and beautiful color images even when using such materials It is possible to form the image 3 by printing with an inkjet printer. It

[0038]   When anodizing to form the alumite layer 2, the electrolyte is usually A sulfuric acid bath or an oxalic acid bath is adopted. In this embodiment, a relatively high purity Because it uses Luminium and wants to ensure a good finished appearance, Furthermore, the sulfuric acid bath gives better wear resistance, and it has a porous property. A sulfuric acid bath is used because it has good performance and can increase the thickness of the oxide film. Note that , The oxide film is easy to spread and it has been used in the food industry for a long time. An acid bath may be adopted.

[0039]   The aluminum material used, that is, the surface of the base material portion 1 is chemically or A mechanically roughened material can be used, but a mirror surface is preferable in consideration of light reflection. . To obtain a mirror surface, luster imparting by mechanical processing such as skin pass or feather cloth, chemical research Polishing, electrolytic polishing, etc. are conceivable. I don't care. In addition, when not sticking to the mirror surface, the base material part 1 does not have to be a mirror surface. Yes.

[0040]   Table 1 shows the relationship between the thickness of the alumite layer 2 to be the coating and the wear resistance. In addition, Here, the number of times of abrasion resistance is the number of times the aluminum base is rubbed until it is exposed. The index is the number of films with a thickness of 10 μm (47 times) set to 1, and other films It is a numerical value showing the wear resistance of the thickness. The specific wear resistance is the wear resistance per 1 μm. It shows the property (number of times / thickness of film).

[Table 1]

[0041]   FIG. 3 shows the alumite layer 2 formed on the mirror-finished base material portion 1, that is, the porous layer. The anodic oxide film which is the alumite layer 2 formed in high quality is shown typically. Of oxide film In the center of the tubular tissue 4 corresponding to the entire structure, tubular pores 5 that form a porosity are formed. Has been done. In the pores 5 formed in the tubular tissue 4, the cross section of the coating in the upper layer is the base material. It is vertical to the surface of the part 1 and has a cylindrical shape as a whole. The shape is like wearing and arranging. The lower layer of the pores 5 is as simple as the upper layer. It has no shape. For these, electrolysis conditions (type of electrolyte, voltage, temperature The diameter, length, surface density, lower layer structure, etc. Is known.

[0042]   Anodizing should be done carefully to achieve the desired quality of color image 3. It is necessary. It has a porous coating, that is, a large number of pores 5 for the reason described later. The diameter of the pores 5 of the tubular tissue 4 that is being made weaken the tubular tissue 4 that is the anodized film. This is because we want to make it as large as possible without The wear resistance shown in Table 1 The thickness of the alumite layer 2 is set to 15 to 20 in consideration of efficiency and economic efficiency (processing time, number of times). It is preferable that the diameter of the pores 5 is 0.001 to 0.025 μm. Good When the thickness of the alumite layer 2 is increased, the diameter and depth of the pores 5 are increased, and Two or more particles of the material enter the pores 5 and the ink is bleed. Meanwhile, Alma If the thickness of the oxide layer 2 is reduced, the diameter and depth of the pores 5 are reduced, and the pigment particles become finer. Even if none of the holes 5 enter the pores 5 Will not be established.

[0043]   The thickness of the alumite layer 2 (coating) and the diameter of the pores 5 should be adjusted to a temperature that is one of the electrolysis conditions. Therefore, the temperature changes from 15 to 25 ° C., and preferably the fluctuation range. It is better to control the temperature to ± 2 ° C. Furthermore, the concentration and composition of the electrolyte is sulfuric acid 1 Adjust based on 5%. However, in actuality, in anodic oxidation, metal elution, Evaporation of water or the like occurs, and the electrolytic solution tends to change. Therefore, quantitative analysis management In addition, to control the change of elution impurities etc., the baume degree is constantly controlled. Is good. If this control is broken, the appearance of the film is adversely affected.

[0044]   In this way, the anodized substrate, that is, the alumite layer 2 is provided on the surface. The base material portion 1 is formed. After that, after drying the base material portion 1 with the alumite layer 2, Jet printing is performed by a jet printing device, for example, an inkjet printer. In this case When selecting an ejection printing device, The device's dpi (Dot Per Inch) and the pigment of the ink used for it It is necessary to sufficiently consider the relationship between the particle diameter and the diameter of the pores 5 of the tubular tissue 4. these If the product quality is changed, the relationship between the two will decisively affect the workmanship.

[0045]   For the particle size of the pigment that influences the color surface of the appearance of the ornament 10, see the alumite layer. 2, that is, 0.025 μm or less is preferable from the relationship with the diameter of the pores 5 of the tubular tissue 4. However, if the particle size is substantially in the vicinity thereof, there is no problem in practical use. Also, Considering the increase in fixing strength due to being caught in the pores 5, the diameter of the pores 5 A pigment having a particle size several times, and sometimes several tens of times, may be used.

[0046]   Actually, considering the manufacturing process of the pigment itself used for ink, the following points Should be considered. That is, pigments have a certain size that is unique to each pigment. Consisting of primary particles having a certain size, that is, single to polycrystalline primary particles In the course of the manufacturing process, those formed as secondary particles by aggregation of particles, It is actually in service. By the way, the diameter of the primary particle of the pigment is generally For that, it is 0.1 to several μm, and for organic pigments it is 0.01 to 0.1 μm. . And the primary particles are aggregated into secondary particles, and the size of the secondary particles is hue, Affects pigment properties such as tinting strength and hiding power.

[0047]   The actual pigment particles obtained through the dispersion process in the color base creation process are 0.02 to 1 μm for organic pigments, 0.1 to 1 μm for inorganic pigments, carbon black It is said to be 0.03 to 0.1 μm. Actually 0.025μm or less with a disperser In the present embodiment, the particle diameter is 0.025 μm or less. Are using. However, the number of particles of the pigment for ink that has been put to practical use in the past is 0 ． The diameter is about 03 μm, and such kind may be used. In addition, Particles with a particle size of 0.1-0.5 μm when fixing due to catching is considered. Is considerably high, for example, 30 to 60%, the ink fixability is improved.

[0048]   Considering the particle size of this pigment, the organic dye-based particles have a particle size of 0.003 μm or less. As a result, the printing ink easily penetrates into the pores 5, and the printing ink does not get close to the base material portion 1. It is preferable to maintain adhesion, but due to weather resistance, ultraviolet resistance (light resistance), etc. Especially inferior to inorganic pigments. In the case of organic dyes, especially yellows and reds are prone to fading, In case of using this product for a long period of time, there is a problem in reliability. An inorganic pigment was selected as the ink. If the user's wishes are met, nothing will be done. Organic pigments may be used instead of machine pigments. If necessary, use organic dye You may adopt it.

[0049]   Inorganic pigments that can be used in the present embodiment, oxides, hydroxides, sulfides, Ferrocyanide, chromate, silicate, carbonate, phosphate, metal powder, carbon, etc. Exists. Any pigment can be selected from among various inorganic pigments. By the way, organic If pigments are used, dyed lake, azo (soluble azo, insoluble azo, condensed azo , Azo complex salt), phthalocyanine pigment, condensed polycycle, nitro, nitroso, daylight fluorescent face Fees can be used.

[0050]   The shape of the pigment particles used in the ink varies from single crystal to polycrystalline pigment. Even pigments that have a unique size and shape and that have the same chemical composition, It is known that it depends on the case. There are two types of shapes: fixed and amorphous. There are spherical, granular, plate-shaped, flaky, rod-shaped, needle-shaped, etc. shapes, which are manufactured according to the coloring power of the pigment. Build conditions are set.

[0051]   The size of the pores 5 of the tubular tissue 4 is related to the type of electrolyte, and the size of the pores 5 Since the areal density is related to the type of electrolyte and the voltage, a proper combination of conditions Can be appropriately selected.

[0052]   The printing on the surface of the alumite layer 2 is performed by MAS Co., Ltd., which has an inkjet function. A Tarmind MMP series printer 22 (see FIG. 4) was used. this The printer 22 can be applied to curved surfaces, uneven surfaces, stepped surfaces, etc. of various materials. However, in each case an undercoat on the surface of the material is required. Alma When an undercoat is applied, it will be treated with this anodized aluminum. The gloss on the surface will not live and the product value will drop significantly. For this reason, Printing on this printer 22 has almost never been done for anodized products. Was not done.

[0053]   This printer 22 made it possible to manufacture the decorative article 10 according to the present invention. The above-mentioned film thickness (15 to 20 μm), and in addition to this film thickness, pigment particles By properly combining the diameter, the diameter of the pores 5, etc., an undercoat is not required. For the first time, printing with good fixability was possible without bleeding. For this reason, In selecting the linter, the phase of the film thickness, dpi, and the diameter of the pores 5 of the tubular tissue 4 Emphasized the contrast test.

[0054]   FIG. 4 is a schematic diagram showing how printing is performed when the mutual contrast test and the decorative article 10 are manufactured. Shown in. Information on the color image 3 is input to the computer 21 in advance. Has been done. Based on the information, an instruction from the computer 21 allows, for example, ink Ink droplets are ejected from the nozzles 23 of the printer 22, which is a jet-type ejection printing apparatus. The droplet 3a is ejected, adheres to the alumite layer 2 formed on the base material portion 1, and the color It is formed as image 3.

[0055]   The results of the mutual contrast test are shown in FIGS. As you can see from these figures, The linter 22 has a dpi of preferably 600 or more, more preferably 800 or more. Since this printer 22 has a maximum of 1440 dpi, further experiments However, theoretically, if the droplet 3a is too small, it will flow into the pores 5. With less vehicle, the probability of the pigment particles getting caught in the pores 5 also decreases. , The adhesion becomes weak. From this, 1440 dpi or 2880 dpi is The strike is preferably 800 to 5760 dpi, and sometimes 600 to 7200 dpi. I think it's okay. Of the three factors, the film thickness is the most important There was found.

[0056]   These results will be explained theoretically. As shown in FIG. 7, the pores of the tubular tissue 4 5 is also important for the relationship between the diameter of the ink and the grain size of the ink, in other words, the diameter of the droplet 3a. Turned out to be. That is, the volume of the pores 5 and the amount of the inkjet droplets 3 In other words, there is an appropriate condition between the diameter of the droplet 3a and the diameter of the ink droplet. How to infiltrate the particles and how to properly hook the pigment particles into the pores 5. Whether or not it affects the adhesion of the printing ink.

[0057]   In terms of vehicle, if the amount of droplets 3a is appropriate, the vehicle in the ink As shown in FIG. 7 (A), it is considered that they permeate and adhere along the inner walls of the pores 5. As a result, even if the adhesion of the vehicle itself is poor, It improves the adhesiveness of the stains. In addition, as shown in FIG. When the amount is optimum, the printing ink expels and enters the gas (air) in the pores 5. It will be possible to improve the adhesion as well.

[0058]   On the contrary, if the diameter of the droplet 3a is too large, it will greatly exceed the volume of the pores 5. As a result, the ink overflows and the ink droplets 3a of the ink jet are mixed. They will interfere with each other, and the appearance of the finished product will show a phenomenon called bleeding. Further, if the dpi, the film thickness, and the hole diameter are not appropriate, as shown in FIG. It does not penetrate into the pores 5 and as a result only covers the pores 5. As a result , The gas (air) is confined in the pores 5, and the adhesiveness is also reduced. Become.

[0059]   Further, the point that the pigment particles are caught in the pores 5 is as follows. Figure 9 indicates that the pigment particles 6 in the printing ink are slightly larger than the diameter of the pores 5 of the tubular tissue 4. If the diameter is 1.1 to 1.5 times the diameter of the fine pores 5, how It is a schematic representation of whether or not it adheres.

[0060]   As described above, the shape of the particles 6 of the pigment used in the printing ink depends on the type and manufacturing process. Spherical, plate-like, flaky, rod-like, needle-like, etc. are not constant depending on the conditions and treatment conditions, and pigment particles A part of the child 6 is stuck in the pore 5 or bites into the pore 5 and is scratched. It is possible that a very complicated phenomenon occurs due to the close contact with each other. Easily expected. In this case, the vehicle comprises the pigment particles 6 and the walls around the pores 5. Penetrates deeper into the pores 5 through the gaps between them. From this, the denser than expected It is assumed that the wear strength can be obtained. Moreover, some of the pigment particles 6 are drawn into the pores 5. As a result, the pigment itself will adhere even more firmly. In addition, pigment particles Even if the particle size is several times to several tens of times larger than that of the pores 5, the child 6 is caught in the pores 5. It

[0061]   After printing in this way, setting (leaving) is performed and the pigment is applied to the pores 5. Fix it. Then, drying is performed to enhance the affinity with the base material part 1.

[0062]   The color image 3, that is, the adhesiveness of the droplet 3a is originally the nature of the vehicle of the ink. It has a great relationship with Limited by itself. As one example, styrene-acrylic acid polymer is It has been proposed to add an aqueous compound. Therefore, consider the effect of humidity in the air. Therefore, it is necessary to carry out drying after printing at an early stage. Hot air drying Both a dryer and an infrared dryer can be used.

[0063]   As the inorganic pigment, the one whose particle 6 is slightly smaller than the diameter of the fine pore 5 is It is preferable that 100% is present in the ink, but in terms of adhesion strength, it is slightly Very large particles 6 (particles 6 1.1 to 1.5 times the diameter of the pores 5) and slightly smaller particles If the total amount of the child 6 is 20 to 60% of the ink, the strength is sufficient. Form of this implementation In the state, the diameter of the particles 6 is 0.025 μm or less, while the diameter of the pores 5 is 0.025 μm or less. Since it is set to 01 to 0.025 μm, it is very preferable. The diameter of the pores 5 is 0. 001 to 0.025 μm means that the pore diameter is 0.02 to 0.025 μm. Since many pores 5 are included, it is preferable in terms of adhesion (fixability). Will be Further, in this embodiment, 0.02 to 0.025 μm in all the pores 5 The pores 5 having a pore size of 20 to 40% are in the range.

[0064]   Finally, a sealing treatment of the alumite layer 2, that is, a treatment of closing the pores 5 by a known method. After processing, it becomes a finished product.

[0065]   However, some users require even more severe weather resistance and corrosion resistance. There may be cases where As a means to cope with such a case, instead of sealing treatment Or, after performing the sealing treatment, a top coat is performed. For this coating, solvent-based, Although any non-solvent type paint can be used, it is preferable that the ink It is better to use a non-solvent system that has less effect on the vehicle.

[0066]   In the non-solvent system, a thermosetting type is naturally used. In this case, one-component type, two-component type All of them can be used, and it is desirable to select them in consideration of the company's own equipment. Good In addition, the heat-curing time is not the same as the one described above, which may affect workability. As long as it does not cause any harm, those that polymerize and cure early are good.

[0067]   Other processing methods for topcoating are electrostatic coating or electrodeposition coating. Although it is possible to install it, it is possible to select the spray type from the viewpoint of workability and equipment. Is good.

[0068]   The above-described embodiment is a preferred embodiment of the present invention, but deviates from the gist of the present invention. Various modifications can be made without departing from the scope. For example, as shown in FIG. Even if the product 10A is provided with the semicircular concave portion 11, the decorative portion 3 can be printed. . Furthermore, as shown in FIG. 10 (B), a plurality of triangular recesses 12 are continuously provided. It is possible to print the decorative portion 3 such as a color image also on the decorative article 10B provided. It

[0069]   The thickness of the alumite layer 2 is preferably 15 to 20 μm, but 10 μm or more In that case, the diameter and depth of the pores 5 become large, and the pigment particles surely enter the pores 5. It is preferable that the adhesiveness of the raw material ink is increased by the denting or catching. Also, If the thickness is 25 μm or less, it becomes difficult for two or more pigment particles to enter. Less likely to get caught and less likely to bleed. Moreover, when the film thickness is 25 μm or less Then, when the aluminum base material 1 is mirror-finished, the texture (gloss) of the aluminum material is It does not fall so much and is preferable.

[0070]   The ornaments 10 include a business card case, a cigarette case, and a spoon in addition to the ruler. , Tableware such as forks and cups, food cases, food containers, camera cases, watch cases For case, dial, needle, cosmetic case, electric parts, various parts case, photo stand, etc. Can be adopted. Also, if aluminum is used for a part of the product, The present invention can be applied to each minute. That is, using aluminum material The present invention can be applied to all products.

[0071]

[Effect of device]

  As described above, according to the present invention, the texture of aluminum material is utilized and It is possible to obtain a decorative article having a pattern (decorative portion) that is free from bleeding and has good fixing properties.

[Brief description of drawings]

FIG. 1 is a partial perspective view of an ornamental article according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the ornamental article of FIG. 1 taken along line XX, schematically showing the relationship between the anodized alumite layer and the ornamental portion (enlarged ink droplets). It is a figure.

FIG. 3 is a schematic view of pores of the alumite layer of FIG.

FIG. 4 is a conceptual diagram for explaining a situation in which a decorative part is formed using a computer when manufacturing the decorative article of FIG.

5 is a diagram showing a test result of adhesion of a decorative portion (pigment ink) of the decorative article of FIG.

6 is a diagram showing a test result of the appearance of a decorative portion (pigment ink) of the decorative article of FIG.

7A and 7B are views for explaining the ink application state when forming the decorative portion of the ornamental article of FIG. 1, and FIG. 7A shows a state in which the vehicle of the ink permeates and adheres along the inner walls of the pores. In the figure,
(B) is a diagram showing how the vehicle expels and enters the gas in the pores.

FIG. 8 is a conceptual diagram showing a state in which the ink has a lid shape when the amount of ink is too large.

FIG. 9 is a diagram showing a state in which a pigment is caught in pores or stuck in pores.

FIG. 10 is a view showing another shape of the base material portion of the decorative article according to the present invention.

[Explanation of symbols]

1 Base material 2 alumite layer 3 color image (decoration part) 3a ink droplets 4 tubular tissue 5 pores 6 Pigment particles 10 ornaments

Claims (8)

[Scope of utility model registration request] 1. A base material part made of an aluminum material, an alumite layer having a thickness of 10 to 25 μm formed on the base material part, and an ink jetted from a jet printing device directly onto the surface of the alumite layer. The decoration part printed on
An ornament characterized by having. 2. The alumite layer is provided on the mirror-polished base material portion, and includes pores formed in the alumite layer having a diameter of 0.02 to 0.025 μm. 2. The decorative article according to claim 1, wherein the ink is a color ink made of an inorganic pigment having a particle diameter that is approximately the same as the diameter of the pores. 3. The ink adheres to the walls and bottom of pores formed on the surface of the alumite layer, and air is not trapped in the pores. The listed ornaments. 4. The aluminum material is a material having an aluminum content of 99% or more, the alumite layer has a thickness of 15 to 20 μm, and a step or a recess is present in a part of the decorative portion, and the step or the recess is provided. 2. The ornamental article according to claim 1, which is also ink-printed. 5. The aluminum material is a material having an aluminum content of 99% or more, the alumite layer is an alumite layer formed by a sulfuric acid bath, and a step or a recess is present in a part of the decorative portion. 2. The decorative article according to claim 1, wherein the stepped portion or the concave portion is also printed with ink, and the particles of the ink pigment are caught in the pores of the alumite layer. 6. The aluminum material is a material having an aluminum content of 99% or more, the alumite layer is an alumite layer formed by an oxalic acid bath, and a step portion or a concave portion is present in a part of the decorative portion. 2. The decorative article according to claim 1, wherein the stepped portion or the concave portion is also ink-printed and is used for food. 7. The decorative article according to claim 6, wherein the pigment particles of the ink are caught in the pores of the alumite layer. 8. The decorative article according to claim 5 or 7, wherein the ink print forming the decorative portion has a dpi of 800 to 2880 dpi.