Method for manufacturing a member having a wood-like painted surface similar to natural wood, and apparatus for manufacturing a member having a wood-like painted surface similar to natural wood

Abstract

To provide a manufacturing device for automatically manufacturing a wood-like painted member having a woody appearance and texture and feel similar to those of natural wood by applying a coating material to a suitable substrate. [Solution] A manufacturing device for components with wood-like painted surfaces that performs a series of operations fully automatically and without human intervention: first, a first coating layer is formed by uniformly applying a first coating material to an appropriate substrate, then a second coating material is applied uniformly or unevenly on top of the first coating layer to form a second coating layer, and then the second coating material from the second coating layer is partially scraped off with a scraping member having a scraping pattern to create a random pattern, which is then dried.

Description

[Technical Field]

[0001] The present invention provides On at least one surface of an arbitrarily selected base material This invention relates to a method and an apparatus for manufacturing components having a wood-like painted surface similar to that of natural wood, and a method and an apparatus for manufacturing components having a wood-like painted surface similar to that of natural wood on at least one surface of an arbitrarily selected substrate. More specifically, this invention relates to a method and an apparatus for fully automatically manufacturing components having a wood-like painted surface similar to that of natural wood without manual intervention by painting the surface of an appropriate substrate with a wood-like painted material in which wood flour and cellulose nanofiber (CNF) components are mixed in a synthetic resin component and the wood flour is dispersed and arranged in a substantially uniform manner within the synthetic resin component. [Background technology]

[0002] Wood has traditionally been frequently used as a building material and furniture material, and the resulting consumption of wood has been considerable. However, in recent years, problems such as global warming, air pollution, and the occurrence of natural disasters have come to the surface. As a result, there has been an increased need to strengthen forest protection and prohibit large-scale logging, and production of wood as a raw material for building and furniture has tended to decline. As a result, demand has exceeded production, and adverse effects such as a rise in wood prices have begun to occur. In consideration of this situation, as a means of meeting the demand for wood while anticipating a decrease in production, there is a demand for the production and utilization of recycled wood by recycling used or waste wood, as well as the production of artificial wood using non-wood materials. Furthermore, many methods have been studied for producing artificial wood with an appearance and texture similar to that of natural wood by applying a paint having the appearance, texture, or feel of natural wood to the surface of an appropriate substrate made of wood, metal, synthetic resin, or the like.

[0003] As a method for producing such artificial wood or a method for recycling waste wood, for example, a method of applying a paint that creates the appearance and feel of natural wood to the surface of the waste wood or the surface of a metal substrate, as shown in JP-A-59-19236 (Patent Document 1), JP-A-2000-343030 (Patent Document 2), or JP-A-2009-209237 (Patent Document 3), is known. Also, a method of applying a paint that creates the appearance and feel of natural wood to the surface of the waste wood or the surface of a metal substrate, as shown in JP-A-2015-137340 (Patent Document 4), is known. As shown in the above, there is a method for producing synthetic resin wood having a wood-like appearance, texture, and feel by mixing a cellulosic fiber component into an appropriate synthetic resin component and molding it into a wood-like shape, and there is also a method for embossing the surface of a synthetic resin body or metal material using an appropriate device to reveal a wood grain pattern, as shown in JP 2008-120019 A (Patent Document 5) and Japanese Patent No. 3030009 (Patent Document 6).

[0004] On the other hand, Japanese Patent Application Laid-Open No. 2019-217486 (Patent Document 7) discloses a technology in which a coating film layer is formed on the surface of an appropriate substrate using an appropriate coating material, and then a pressing member having an appropriate surface shape is brought into contact with the surface of the coating film layer and the pressing member is slid over the surface of the coating film layer to form an irregular pattern on the surface of the coating film layer. However, it was not possible to form a pattern including the surface patterns of natural wood, such as flat grain, straight grain, and figured grain. Furthermore, JP 2021-123723 A (Patent Document 8) states that because the brush part or wood grainer part is manually swung or slid by the worker, similar patterns are often repeated frequently in short cycles, and it is impossible to form the random, uneven, and almost non-repeating pattern that is characteristic of natural wood over a long distance along the longitudinal direction of the base material part.

[0005] On the other hand, the manufacturing techniques for artificial wood based on synthetic resins mixed with fiber components, and the method of forming wood grain patterns by embossing the outer surface of synthetic resin materials or metal materials, all result in high manufacturing costs, and it has been difficult to inexpensively and easily manufacture artificial wood that has properties similar to the appearance, texture, and feel of natural wood. Furthermore, paints that exhibit properties similar to the appearance, texture, and feel of natural wood have also been developed. For example, even if wood powder (shavings) is mixed into the molten synthetic resin component that forms the base of the paint, the wood powder bonds tightly to each other and forms large lumps, making it unsuitable for painting and making it impossible to give non-wood substrates the feel, appearance, and texture of natural wood. In such cases, nozzle clogging occurs, which is a major problem, especially when spray painting is performed. Therefore, in order to solve the above problems, Patent Document 8 proposes a synthetic resin composition for forming a coating for painting, which is composed of a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component, in which the wood flour component is uniformly dispersed within the synthetic resin composition.

[0006] As a result of extensive research into solving the above-mentioned drawbacks of the prior art, the inventors of the present application have developed a technology that makes it possible to efficiently and inexpensively manufacture components having wood-like painted surfaces that resemble those of natural wood in a fully automatic manner without human intervention, using primarily the above-mentioned paints. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 59-19236 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-343030 [Patent Document 3] Japanese Patent Application Laid-Open No. 2009-209237 [Patent Document 4] Japanese Patent Application Laid-Open No. 2015-137340 [Patent Document 5] Japanese Patent Application Laid-Open No. 2008-120019 [Patent Document 6] Patent No. 3030009 [Patent Document 7] Japanese Patent Application Publication No. 2019-217486 [Patent Document 8] Patent Publication No. 2021-123723 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0008] Therefore, the object of the present invention is to provide a method and apparatus for fully automatically producing a member having a wood-like painted surface approximating natural wood, in which a group of natural wood patterns such as flat grain, straight grain, and figured grain are irregularly and randomly formed on the surface of a base material made of an appropriate material, using a paint mainly made of a synthetic resin composition in which fine wood powder or sawdust, etc., are individually and independently uniformly dispersed and blended in a desired synthetic resin composition without agglomeration, and using a machine without any human intervention to produce the member. [Means for solving the problem]

[0009] The method and apparatus for manufacturing a member having a wood-like painted surface approximating natural wood according to the present invention are intended to achieve the above-mentioned object by providing a substrate having a suitable cross-sectional shape, at least on a surface of at least one portion thereof, with a coating layer portion made of a first coating-forming synthetic resin composition, the first coating layer having a uniform thickness of 0.02 mm to 0.06 mm, preferably 0.03 mm to 0.05 mm, the first coating layer being a synthetic resin composition composed of a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component, the wood flour component being uniformly dispersed within the synthetic resin composition, the first coating layer having a uniform thickness of 0.02 mm to 0.06 mm, preferably 0.03 mm to 0.05 mm, and the upper surface of the first coating layer is provided with a coating layer made of a first coating-forming synthetic resin composition which is the same as or different from the first coating-forming synthetic resin composition constituting the first coating layer, the viscosity of which is determined by the viscosity of the first coating-forming synthetic resin composition. and / orA coating layer made of a second film-forming synthetic resin composition differing in at least one of hue, lightness, and saturation, the coating layer having a pattern portion formed on the upper surface of the first coating layer, the pattern portion having a uniform or non-uniform height of 0.003 mm to 0.03 mm, preferably 0.005 mm to 0.02 mm, from the upper surface of the first coating layer, and the pattern portion having a dotted, broken, or continuous linear protrusion, the pattern portion having a random characteristic in that no repeating portion of the pattern portion exists within a continuous range of 20 m measured arbitrarily along the longitudinal direction of the base material, is used to produce a member having a wood-like painted surface approximating natural wood, the pattern portion having a random characteristic in that no repeating portion of the pattern portion exists within a continuous range of 20 m measured arbitrarily along the longitudinal direction of the base material, As shown below This technology configuration is adopted.

[0010] That is, the first aspect of the present invention is a coating method in which a suitable first coating material is applied to at least one surface of a substrate to be coated. After that, after drying treatment, the painted substrate is applied to the surface of the coated substrate portion while being moved by an appropriate conveying means. First coating material Same as or different from a second coating material comprising the coating material; After applying the Second coating material a paint scraping member having a desired curved surface on which a desired paint scraping pattern is attached to the curved surface of a holder body having a desired curved surface, the holder body having a desired curved surface on which a second paint material is applied while the second paint material is in an undried state; Patterned surface and the paint scraping member is brought into contact with the base material, and the paint scraping member is swung within an appropriate range around the longitudinal axis of the holder of the paint scraping member to partially scrape off the second paint material in a wet state, thereby forming a continuous linear pattern of the second paint material on the surface of the base material to be coated. and / or Discontinuous and / or When the operation of forming the dot-like protrusions in a pattern is performed continuously without manual intervention, at least the pivot angle of the paint scraping member about the longitudinal axis of the holder body portion is and / or The swing speed of the holder is automatically and randomly changed in response to random signal information generated from a separately provided random signal information generating means, while being linked to the moving speed of the substrate portion of the conveying means. By doing so, the frequency with which a pattern portion identical to one of the pattern portions formed on the surface of the painted base material and consisting of the protrusions made of at least the second paint material is repeatedly generated within a range of a desired length along the longitudinal direction of the painted base material is reduced.The second aspect of the present invention is a method for producing a member having a wood-like painted surface similar to that of natural wood, characterized in that after applying a suitable first coating material to at least one surface of a substrate to be coated, and preferably after subjecting the coated substrate to a drying treatment, the coated substrate is transported by a suitable conveying means. However, painted On the surface of the base material From a paint material that is the same as or different from the first paint material a paint scraping member having a desired curved surface and one or more desired paint scraping patterns attached to the curved surface of a holder having a desired curved surface is used to contact the paint-coated surface of the coated substrate to which the second paint material has been applied, and the paint scraping member is swung within an appropriate range around the longitudinal axis of the holder of the paint scraping member to partially scrape off the wet second paint material, leaving a continuous linear pattern of the second paint material on the surface of the substrate to be coated, while the paint scraping member is swung within an appropriate range around the longitudinal axis of the holder of the paint scraping member. and / or discontinuous and / or A device for continuously performing an operation of forming dot-like protrusions in a pattern, and at least, the holder of the paint scraping member is rotated by an appropriate angle around its longitudinal axis. and / or The apparatus is provided with a swing angle / swing speed changing drive means for swinging at an appropriate swing speed and a conveying speed changing drive means for driving at an appropriate speed the conveying means for moving the substrate to be coated, and the swing angle / swing speed changing drive means and the conveying speed changing drive means are respectively provided with a swing angle / swing speed changing drive means control section for controlling the swing angle / swing speed changing drive means and a conveying speed changing drive means control section for controlling the conveying speed changing drive means, and the swing angle / swing speed changing drive means and the conveying speed changing drive means are linked to each other and controlled by a swing angle / swing speed changing drive means control section for controlling the swing angle / swing speed changing drive means in response to random signal information generated from one or more separately provided random signal information generating means. and / or The conveying speed change driving means control section is individually and automatically and randomly controlled to drive the swing angle / swing speed change driving means. The conveying speed change driving meansand are configured to be driven individually, automatically and randomly. This reduces the frequency with which a pattern portion identical to one of the pattern portions formed on the surface of the painted substrate portion and consisting of the protrusions made of at least the second paint material is repeatedly generated within a desired length range along the longitudinal direction of the painted substrate portion. This is an apparatus for manufacturing components with wood-like painted surfaces that resemble natural wood, characterized by the above. [Effects of the Invention]

[0011] The present invention The material has a wood-like painted surface that resembles natural wood. As a result of adopting the basic technical configuration described above, the manufacturing method and manufacturing apparatus make it possible to automatically, inexpensively, and efficiently manufacture building materials or furniture materials with painted surfaces that have a wood-like appearance, texture, or feel that is closer to that of natural wood than wood-like materials obtained by conventional coatings of the same type. Furthermore, the resulting paint coating on the component is capable of forming a luxurious coating that more closely resembles the appearance, texture, and feel of natural wood than conventional paints that are known for imitating the texture, appearance, and feel of wood materials.This makes it possible not only to recycle waste wood, but also to easily produce artificial wood by applying paint to the surface of metal or synthetic resin substrates, thereby reducing the consumption of natural wood, contributing to the promotion and maintenance of forest systems and the prevention of natural disasters, as well as making a significant contribution to the prevention of air pollution and global warming. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view illustrating an outline of a wood-like painted member obtained by the present invention. [Figure 2] FIG. 2 is a side view and a plan view illustrating the method for producing a wood-like painted member obtained by the present invention. [Figure 3] FIG. 3 is a block diagram showing an example of a control circuit used as part of the drive control means of each element drive device in the present invention. [Figure 4] FIG. 4 is a diagram illustrating a specific example of a paint application device 700 used in the second step (first paint application step) of the present invention. [Figure 5]FIG. 5 is a diagram illustrating a specific example of a paint application device 800 used in the third step (second paint application step) of the present invention. [Figure 6] FIG. 6 is a perspective view showing an example of a device for sliding the substrate portion used in the third step and a fourth step described later in the present invention in a direction perpendicular to the conveying direction of the substrate portion. [Figure 7] FIG. 7 is a plan view showing a part of a specific example of a coating pattern when the second coating material is applied to the surface of the substrate portion in the third step in the present invention. [Figure 8] FIG. 8 is a plan view and a perspective view showing the configuration of a specific example of a scraping device used in the third step in the present invention. [Figure 9] FIG. 9 is a side view illustrating the function of the scraping device used in the present invention. [Figure 10] FIG. 1 is a perspective view showing the configuration of another specific example of a scraping device used in the present invention, and a plan view showing an example of a pattern. [Figure 11] FIG. 11 is a perspective view illustrating the outline of the structure of the synthetic resin composition for forming a coating film used in the present invention. [Figure 12] FIG. 12 is a front view illustrating the outline of the structure of the synthetic resin composition for forming a film used in the present invention. [Figure 13] FIG. 13 is a perspective view showing an example of a scraping pattern selection means of the scraping device used in the present invention. [Figure 14] FIG. 14 is a perspective view for explaining the outline of the configuration of still another example of the present invention. [Figure 15] FIG. 15 is a front view for explaining the outline of the configuration of still another example of the present invention. [Figure 16]Figure 16 shows the results of an experiment to prove that the grain pattern of the painted product of the present invention is random. Ten sample bases, each 200 cm long and painted for comparison with the reference photo A, were arranged in parallel in the vertical direction, and each sample base was divided into 20 cm sections along its length. The grain pattern within each section was photographed in 100 photographs, and the results of judgments made by an image recognition means and visual estimation are shown. [Figure 17] FIG. 17 shows the results of a comparison test similar to that of FIG. 16, in which the above-mentioned reference photograph B was used as the reference photograph. [Figure 18] FIG. 18 shows the results of a comparison test similar to that of FIG. 16, in which the above-mentioned reference photograph C was used as the reference photograph. [Figure 19] FIG. 19 shows the results of a comparison test similar to that of FIG. 16, in which the above-mentioned reference photograph D was used as the reference photograph. [Figure 20] FIG. 20 shows the results of a comparison test similar to that of FIG. 16, in which the above-mentioned reference photograph E was used as the reference photograph. [Figure 21] FIG. 21 shows the results of a comparison test similar to that shown in FIG. 16, in which the above-mentioned reference photograph F was used as the reference photograph. [Figure 22] FIG. 22 shows the results of a comparison test similar to that of FIG. 16, in which the above-mentioned reference photograph G was used as the reference photograph. [Figure 23] FIG. 23 shows the results of a comparison test similar to that of FIG. 16, in which the above-mentioned reference photograph H was used as the reference photograph. [Figure 24] FIG. 24 shows the results of a comparison test similar to that shown in FIG. 16, in which the above-mentioned reference photograph I was used as the reference photograph. [Figure 25] FIG. 25 shows the results of a comparison test similar to that shown in FIG. 16, in which the above-mentioned reference photograph J was used as the reference photograph. DETAILED DESCRIPTION OF THE INVENTION

[0013] Below, Obtained by the present invention Specific examples of members having a wood-like painted surface that resembles natural wood will be described in detail with reference to the drawings. That is, as shown in Figure 1, The member 30 having a wood-like painted surface similar to that of natural wood obtained by the first and / or second aspects of the present invention is: At least one first coating layer 2 having a uniform thickness of 0.02 mm to 0.06 mm, preferably 0.03 mm to 0.05 mm, is formed on at least a portion of the surface 7 of a substrate 1 having a suitable cross-sectional shape, the first coating layer 2 being made of a first paint material made of a synthetic resin composition for forming a first coating, the first paint material being a synthetic resin composition 10 made of a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component, the wood flour component being uniformly dispersed within the synthetic resin composition, and the first coating layer 2 being made of a synthetic resin composition for forming a first coating, the first paint material being a synthetic resin composition 10 which may be the same as or different from the first paint material constituting the first coating layer 2, the first paint material being a synthetic resin composition 10 having a viscosity and / or a viscosity which is different from that of the first paint material. The second coating layer 4 is made of a second coating material made of a second film-forming synthetic resin composition differing in at least one of hue, lightness, and saturation, and has a uniform or non-uniform height of 0.003 mm to 0.03 mm, preferably 0.005 mm to 0.02 mm, from the upper surface of the first coating layer 2, and has pattern portions 50, 51 formed on the upper surface of the first coating layer 2 in the form of dots, broken lines, or continuous lines, protruding with an appropriate height, and has a wood-like painted surface similar to natural wood, characterized in that no repeating portions of the pattern portions 50, 51 exist within a continuous range of 20 m measured arbitrarily along the longitudinal direction of the base material 1 in the pattern portions 50, 51. This is member 30.

[0014] In other words, in the component 30 of the present invention having a wood-like painted surface approximating natural wood, when the component is generally used as a building material or furniture material and has a longitudinal length of 20 m or less, there is no repeating pattern within the patterned portions 50, 51, and an irregular, random wood grain pattern approximating natural wood grain is formed. In the present invention, the asymmetrical and random pattern can be defined by individually defining an appropriate random function or asymmetrical function, etc. In essence, in conventional painting operations, workers manually paint wood-specific patterns that combine flat grain, straight grain, heather grain, knots, etc. using tools such as brushes or paintbrushes. However, this has the drawback of repeatedly reproducing the same pattern at extremely short intervals, making it impossible to express a wood-like pattern that resembles the asymmetrical and random formation of natural wood. Furthermore, not only is the production cost high, but the production efficiency is also low, making it an uneconomical manufacturing method. As a result of extensive research, the inventors of the present application have developed a method and apparatus that can inexpensively and efficiently produce components with a wood-like painted surface that resembles natural wood by using fully automated machinery without manual labor to paint a pattern unique to wood, which is an irregular and random combination of flat grain, straight grain, heather grain, knots, etc., including summer grain and winter grain, onto the surface of an appropriate base material in an irregular and random continuous manner without a repeating pattern.

[0015] Here, to explain the randomness of the formed pattern in this invention, the wood grain pattern formed by the wood grain pattern forming method based on the technical concept described below in this invention is characterized by being rich in randomness similar to the wood grain pattern of natural wood, and showing a state in which there is almost no probability of the same or similar pattern being reproduced.Although this pattern is artificially formed, it has the pattern characteristics of being rich in randomness of natural wood, with no repeated pattern parts at all, and it is extremely difficult to specifically and numerically define such a state. Therefore, the inventor has set a condition that in the wood grain pattern portion formed in the present invention, there must be absolutely no repeating portions of the pattern portion within a continuous range of 20 m measured arbitrarily along the longitudinal direction of the base material portion in the pattern portion. Based on this premise, the inventors have studied the changes in the pattern formation state when the driving speed of the belt conveyors 81 and / or 91, the paint spraying position of the second paint material discharge section 805 in the second application process, and the position of the rotation center axis of the scraping device 95 in the scraping process are each changed individually in order to accurately carry out the painting process according to the present invention described below.

[0016] Specifically, first, (1) Belt Conveyor 91 The power of the speed conversion belt drive generates an operation that is not uniform within a certain period, and the belt is driven so that its movement is not constant.The non-constant operation has a period, and there is a cycle in which the speed is changed every 5 seconds, and an operation is performed in which the same pattern is repeated every 120 seconds. Specifically, for example, the moving speed of the belt conveyor 19 was increased in increments of 0.05 m per minute from 0.70 m per minute, and 24 speed increase steps were performed within one cycle of 120 seconds. For example, the operation of changing the moving speed of the labeled conveyor 19 every 5 seconds as follows: 0.70 m / min, 0.75 m / min, 0.80 m / min, 0.85 m / min, 0.90 m / min, 0.95 m / min, 1.00 m / min, ... 1.70 m / min, 1.75 m / min, 1.80 m / min, 1.85 m / min, and this operation is repeated every 120 seconds. Thereafter, it is possible to return to the original state, or it is also possible to accelerate and then decelerate. Furthermore, the speed setting conditions can be selected and set randomly in a time series.

[0017] On the other hand, (2) with regard to the randomization of the operation of the wood grain patterning device, the wood grain patterning device is structured to apply a wood grain pattern by scraping off paint that forms a straight grain or cross grain (winter grain), so for example, the rotation center shaft 96 of the paint scraping member 95 described later can be moved left and right in a direction perpendicular to the rotation center axis within a range of, for example, 30 mm, and the cycle can be set to 20 seconds. By performing this operation, an elliptical motion is generated on the circumferential surface of the paint scraping member 95, resulting in a circumferential length that is approximately three times longer than the period during the normal swinging and turning motion of the paint scraping member 95. Next, (3) the second paint application process, which utilizes the time difference between the paints, will be explained. When applying a dark color to accentuate the wood grain pattern, the paint is applied from the top of the painted surface. liquid point When doing so, the second paint material discharge part 805 itself is swung back and forth in a direction perpendicular to the driving direction of the conveyor belt 81 to prevent the paint from adhering to the same spot, thereby generating an uneven gradation pattern in the straight grain or cross grain pattern, and the cycle is set to, for example, every 15 seconds.

[0018] By performing the three types of operations described above simultaneously, and combining 120-second, 20-second, and 15-second cycles, it can be determined that there is a 1 in 36,000 (120 x 15 x 20) chance that a similar pattern will occur. Also, Base material for painting The position and angle when passing through the wood grain patterning device are different each time. , the substrate to be coated The probability of a pattern in which the same wood grain pattern is formed is even lower than the above probability. Furthermore The substrate to be coated When passing through the conveyor , the substrate to be coated A sliding device may be installed on the line to swing the conveyor itself from side to side, which causes the painted surface to repeat a subtle meandering motion. In addition, by adding a meandering motion, the position where the painted surface passes through the wood grain patterning device and liquid pointThis means that the chances of the same wood grain pattern being produced by combining the above operations are astronomical. Furthermore, as will be described later in this invention, by setting the drive conditions of each drive operating part to be selected randomly using an appropriate random condition generating means or a mechanical random condition generating means such as a random gear, or even by setting each drive condition to correspond to an appropriate random signal, it is clear that the randomness can be further improved and the probability of the same pattern being generated can be further reduced.

[0019] Furthermore, in order to quantify the random state of the formed wood grain pattern, the inventors conducted the following experiment to measure the degree of randomness of the pattern. That is, for a base material with a wood grain pattern paint obtained by applying the painting treatment according to the present invention described below to one surface of a metal base material with a width of 10 cm and a length of 2000 cm (2 m), the wood grain pattern of the surface formed within one region (first region) from the tip of one side as viewed in the longitudinal axis direction to a position 40 cm away in the longitudinal direction of the base material is stored as image information in an appropriate memory means using an appropriate image recording means and retained as sample data.

[0020] Next, the wood grain pattern of the first region is separately stored as image information by the image means, and then an appropriate image processing means is used to photograph and store the image of the first region again, and the image information acquired this time is compared with the stored sample data, and the appropriate image processing means is used to determine whether the two pieces of image information are identical or similar. It goes without saying that the grain pattern of the first region is the same as the stored specimen image information. Next, another wood grain pattern formed in another area (second area) adjacent to the other end of the first area and extending 40 cm away from the one end in a direction away from the other end is recorded as image information using an appropriate image recording means, and then, as described above, the image information is compared with the sample data, and it is determined using an appropriate image processing means whether the two pieces of image information are identical or similar. In the above experiment of the present invention, the image processing operation was performed individually for each of the 50 areas (area 1 to area 50) formed from one end of the substrate to the other end 2000 cm away, and image comparison processing with the sample data was performed.

[0021] In other words, 50 test areas were compared with the sample data using image processing means, and it was clear that the wood grain pattern in the first 40 cm area (first area) was identical to the sample data, but in all other areas (each area defined every 40 cm in the lengthwise direction, second area to 50th area), no patterns identical or similar to the sample data were revealed. In other words, it was determined that there were no identical patterns except for the first one area out of 50 inspection areas, which was determined to have the same pattern. That is, the degree of randomness in the present invention is 1 / 50=0.02, and it is a preferred example that the degree of randomness of the pattern portion in the present invention is 0.02 or less.

[0022] Furthermore, the inventors conducted the following experiment in order to further improve the accuracy of the measurement value of the randomness of the pattern. That is, for a base material part with a wood grain pattern paint obtained by applying the painting treatment according to the present invention described below to one surface of a metal base material part 10 cm wide and 2000 cm (2 m) long, the wood grain pattern of the surface part formed within one region (first region) from the tip end (referred to as the reference end) on one side as viewed in the longitudinal axis direction to a position 100 cm away in the longitudinal direction of the base material is stored as image information in an appropriate memory means using an appropriate image recording means and retained as sample data. Next, the wood grain pattern of the first region is separately stored as image information by an image means, and then an image of the first region is photographed again and stored using an appropriate image processing means.The image information acquired this time is then compared with the stored sample data, and it is determined using an appropriate image processing means whether the two pieces of image information are identical or similar. It goes without saying that the grain pattern of the first region is the same as the stored specimen image information.

[0023] Next, another wood grain pattern formed in another area (a second area overlapping half of the first area) is formed by shifting 50 cm from the reference end of the first area toward the other end, which is the length of the first area, and is recorded as image information using an appropriate image recording means.Then, as described above, the image information is compared with the sample data, and it is determined using an appropriate image processing means whether the two image information are identical or similar. In the above-mentioned separate experiment of the present invention, the image processing operation was performed by shifting the image by 50 cm increments for each of the 40 regions (regions 1 to 40) formed, and the image comparison processing operation with the sample data was performed individually. (Actually, therefore, the length of the substrate to be inspected must be 2050 cm.) In other words, the image processing means was used to compare and judge each of the 40 inspection areas with the sample data, and it was clear that the wood grain pattern in the first 100 cm area (first area) was identical to the sample data, but in all other areas, no patterns identical or similar to the sample data were found. In other words, it was determined that there was no identical pattern in any of the 40 inspection areas, except for the first one, which was determined to have the same pattern. That is, in this experiment, a preferred example of the degree of randomness in the present invention is 1 / 40=0.025 or less.

[0024] Furthermore, in order to prove that the randomness of the grain pattern in the painted product manufactured by the present invention is remarkably high, the inventors conducted the experiments described below and carried out comparative verifications such as those shown in Figures 16 to 25, thereby proving the high randomness. That is, in the coating device according to the present invention shown below, the rotation speed of the main rotating parts was randomly changed in response to a random signal, and a coating process was continuously applied to the surface of a steel plate 12 cm wide and 200 cm long to create a reference sample plate. Next, ten divided areas were set up, each 20 cm long, from one end (left end) of the reference sample plate to the other end (right end). The first divided area on the left end was designated as Area A, and the remaining divided areas up to the right end were designated as Areas B to J, respectively. Next, photographs were taken of the wood grain patterns formed in each of the areas A, B, C, D, E, F, G, H, I, and J, and reference photograph A, B, C, D, E, F, G, H, I, and J were created, respectively. Then, using the same painting method as the standard sample plate described above, 10 steel plates, each 12 cm wide and 200 cm long, were painted separately to create sample painted products for comparison verification.For each of these plates, the wood grain pattern formed in each of the 10 sections was photographed in the same manner as when the standard photograph was taken from the standard sample plate described above, and the photographs were arranged side by side in the order in which they were photographed.This process was also performed for each of the other nine sample painted products for comparison verification, and the results were arranged in parallel from top to bottom for each sample painted product for comparison verification. That is, 100 grain patterns are collected in a length of 20 m of the painted product according to the present invention, and the state is shown in Figs. Next, the results of comparing the grain pattern of the sample for comparison and verification with each of the 10 reference photographs A to J are shown in FIGS. 16 to 25. That is, Figure 16 shows that, as a result of comparing the grain patterns of the above-mentioned reference photograph A with the above-mentioned 100 sample painted products using known image recognition means and visual inspection means, no grain patterns identical to the grain pattern of the reference photograph A were present at all in the above-mentioned 100 sample painted products. Similarly, Figure 17 shows that, as a result of comparing the above-mentioned reference photograph B with the above-mentioned 100 wood grain patterns using known image recognition means and visual inspection means, the same wood grain pattern as the wood grain pattern in the reference photograph B was not present at all in the above-mentioned 100 sample painted products. Furthermore, Figure 18 shows that, as a result of comparing the grain patterns of the above-mentioned reference photograph C with the above-mentioned 100 sample painted products using known image recognition means and visual inspection means, the same grain pattern as the grain pattern of the reference photograph C was not present at all in the above-mentioned 100 sample painted products. Similarly, for each of Figures 19 to 25, when each of the reference photographs D to J was compared with the 100 wood grain patterns described above using known image recognition means and visual inspection means, it was found that no wood grain patterns identical to those in the reference photographs D to J were present at all in the 100 sample painted products described above.

[0025] Here, we will explain the specific structure of the member 30 of the present invention having a wood-like painted surface that resembles natural wood. As shown in Figure 1, the base material 1 of the member 30 of the present invention having a wood-like painted surface that resembles natural wood is made of an appropriate material, such as wood, waste wood, plywood, etc., metal materials such as iron, copper, aluminum, stainless steel, various steel materials including these, synthetic resin materials, gypsum, cement, cardboard, etc., and its dimensions such as cross-sectional shape, length in the longitudinal direction, width, and thickness can be set as desired. In the present invention, a first coating layer 2 made of the first coating material, which is the above-mentioned synthetic resin composition for forming a first coating, is formed with a substantially uniform thickness on the surface 7 of the base material 1, and the thickness is desirably set in the range of, for example, 0.02 mm to 0.06 mm, preferably 0.03 mm to 0.05 mm. Needless to say, in the present invention, a so-called primer layer or undercoat layer (not shown) made of a coating material made of an appropriate material well known in the coating industry can be inserted and disposed between the surface 7 of the substrate 1 and the first coating layer 2.

[0026] On the other hand, on the surface 3 of the first coating layer portion 2, the second film-forming synthetic resin composition is applied. The second coating material A second coating layer portion 4 made of the above is formed. The second coating layer portion 4 has a uniform or non-uniform height from the upper surface 3 of the first coating layer 2 at a height ranging from 0.003 mm to 0.03 mm, preferably from 0.005 mm to 0.02 mm, and is formed with pattern portions 50, 51 that protrude from the upper surface 3 of the first coating layer 2 in the form of dots, broken lines, or continuous lines, and whose widths also vary irregularly. In other words, in the present invention, the above-mentioned first coating layer 2 and second coating layer 4 form a grain pattern including the straight grain and cross grain of natural wood on at least a portion of the surface of the base material 1. In the example of Figure 1, a portion 6 of the surface of the first coating layer 2 represents summer grain, and the second coating layer 4 represents winter grain, and the whole expresses the cross grain pattern of natural wood. Furthermore, it is also possible to express a cross grain pattern including an appropriate knot pattern. Here, the first coating material used in the present invention will be described. The first paint material is A synthetic resin composition composed of a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component, in which the wood flour component is uniformly dispersed within the synthetic resin composition, is preferably used. Furthermore, it is desirable that the synthetic resin composition for forming a coating as the first coating material according to the present invention has the properties of being completely recyclable and also capable of achieving a CO2 reduction effect, and for example, olefin-based resins, acrylic-based resins, urethane-based resins, fluorine-based resins, epoxy-based resins, melamine-based resins, etc. are preferably used.

[0027] On the other hand, the cellulose nanofiber (CNF) component used in the present invention is a fibrous material obtained by finely breaking down and decomposing the cellulose fibers that make up wood to the nano level, and its fineness, i.e., average diameter, is 1 nm to 100 nm, preferably 3 nm to 4 nm, its fiber length is several hundred nm to 1 μm, and its aspect ratio is preferably 100 or more. Furthermore, the wood flour or sawdust used in the present invention is not particularly limited in terms of the type or quality of wood, and almost any wood material can be used. It is particularly desirable to use sawdust or wood flour obtained from wood such as cypress, cedar, and camphor.

[0028] The particle size of the wood flour or sawdust used in the present invention is not particularly limited, but for example, one having a particle size of 20 μm to 200 μm can be used, and preferably around 50 μm. Furthermore, the first coating material of the present invention can be used by appropriately mixing in pigments, hardeners, additives, thickeners, aggregates, etc. On the other hand, the type of solvent for the first coating material used in the present invention is not particularly specified, and organic solvents generally known as thinners and aqueous solvents mainly composed of water can be selected and used as appropriate depending on the purpose of use of the coating material and the type of substrate to which it is applied. Furthermore, it is desirable to vary the mixing ratio of the above components in the synthetic resin composition for forming a coating, which is the first paint material used in the present invention, somewhat depending on the intended use and purpose of use, but it is generally desirable to mix 0.3 to 10 parts by weight of the wood flour component and 0.5 to 10 parts by weight, preferably 0.5 to 5 parts by weight, of the cellulose nanofiber (CNF) component per 100 parts by weight of the synthetic resin component.

[0029] A specific example of the first coating material is a synthetic resin composition prepared by mixing 100 parts by weight of a urethane-based synthetic resin with 0.5 parts by weight of the cellulose nanofiber (CNF) component, 1.0 part by weight of 100 μm wood flour, 1.0 part by weight of water-soluble cellulose (CMC), and 40 parts by weight of a dilution solvent. Here, each of the compounds used in the present invention paint material To give a specific example, it is desirable to use a coating material in which 100 parts by weight of a urethane-based synthetic resin is mixed with 0.5 parts by weight of the cellulose nanofiber (CNF) component, 1.0 part by weight of wood flour having a length of 100 μm, 1.0 part by weight of water-soluble cellulose (CMC), and 40 parts by weight of a dilution solvent. On the other hand, a specific example of the second paint material is preferably a paint material obtained by mixing a urethane-based synthetic resin having a color or hue different from that of the first paint layer 2 with 100 parts by weight of the urethane-based synthetic resin, 1.0 part by weight of a thickener, and 20 parts by weight of a dilution solvent. As a specific example of the second paint material used in the present invention, the first paint material described above can also be used, but it is desirable that the color of the first paint be different and that the amount of diluent mixed in be small. On the other hand, the present invention uses The second coating material If we explain about The second coating material is a synthetic resin composition for forming a coating film that is the same as or different from the first coating material, and has a viscosity that is the same as that of the first coating material. and / or Synthetic resin compositions that differ in at least one of hue, brightness, and saturation are used. The second coating material in the present invention may be made of the same resin as the first coating material and contain cellulose nanofiber (CNF) components, wood flour, water-soluble cellulose (CMC), etc., or may lack some of these components, or may even be completely free of the cellulose nanofiber (CNF) components, wood flour, water-soluble cellulose (CMC), etc.

[0030] On the other hand, Second coating material In this case, the viscosity is First coating material or at least one of its hue, lightness, and saturation is changed to a value different from that of the First coating material It is desirable to configure the color to be different from at least one of the hue, brightness, and saturation of the color. For example, in the present invention The first paint material is Natsume Since it has the function of representing Second coating material Since has the function of representing winter eyes, a dark brown is selected, and Second coating material The viscosity of First coating material In this example, it is desirable to set the viscosity lower than the viscosity of the ink. In addition to the coating method shown in FIG. 1, the back surface, side surface or cross section of the substrate may be coated in the same manner. paint material It goes without saying that it is possible to paint it with

[0031] Furthermore, the present invention The first coating material or the second coating material The method for applying the coating to the surface of the base material is not particularly limited, and it is possible to apply the coating using a paint brush, a paint roller, etc., or to spray the coating using a paint spray nozzle. As described above, the thickness of the first coating layer 2 in the present invention is preferably in the range of 0.03 mm (30 μm) to 0.04 mm (40 μm) when measured in a dry state, while the thickness of the second coating layer 4 is preferably in the range of 0.005 mm (5 μm) to 0.02 mm (20 μm) when measured in a dry state. In addition, one method for adjusting the viscosity of each paint in the present invention is to change the amount of organic solvent mixed in. For example, the viscosity can be adjusted by adding 30 to 70 parts of organic solvent to 100 parts of the main paint. Here, it is desirable to appropriately change the dilution amount of the organic solvent and the type of organic solvent depending on the paint used or the painting environment. Next, specific examples of the first and second aspects of the present invention will be described in detail with reference to the drawings. That is, the basic technical idea and technical configuration of the first embodiment of the present invention is to provide a coating material on at least one surface 7 of the substrate 1 to be coated. After applying an appropriate first coating material, preferably after performing a drying treatment, the coated substrate part 1 is moved by an appropriate conveying means 81, and the first coating material is applied to the surfaces 3, 6 of the coated substrate part 1. After applying a second coating material made of the same or different coating material as the first coating material, while the second coating material is still wet, a pattern surface 941 of a paint scraping member 95 having a desired curved surface and a desired paint scraping pattern 94 attached to the curved surface of a holding body 92 having a desired curved surface is brought into contact with the surface on which the second coating material has been applied, and the paint scraping member 95 is moved within an appropriate range around a longitudinal axis 96 of the holding body 92 of the paint scraping member 95. and / or The second coating material is partially scraped off while being rotated and swung at an appropriate speed, and a continuous linear pattern of the second coating material is applied to the surface 6 of the substrate 1 to be coated. and / or discontinuous and / orWhen the operation of forming the dot-like protrusions 4' in a pattern is performed continuously and without manual intervention, the rotation angle of the holder 92 of the paint scraping member 95 about the longitudinal axis 96 is at least and / or This is a manufacturing method for a member having a wood-like painted surface that resembles natural wood, in which the oscillation speed is automatically and randomly changed in response to random signal information generated from an electrical or mechanical random signal information generating means or a random gear system, etc., while being linked to the movement speed of the conveying means 91.

[0032] To explain the first aspect of the present invention in more detail, as shown in the side view and plan view of FIG. 2, the method of manufacturing a member having a wood-like painted surface approximating natural wood according to the present invention basically includes a carrying-in step 60 having an appropriate conveying means, such as a conveyor belt 61, for conveying a substrate 1 having a desired shape and dimensions to a coating step described later; a first coating application step 70 in which the substrate 1 is conveyed using an appropriate conveying means, such as a conveyor belt 71, and after a desired undercoat treatment (primer treatment) is applied as needed, a first coating material 31, 72 is applied to at least a portion of the surface 7 of the substrate 1 to form a first coating layer 2, and then the applied first coating layer 2 is preferably dried; and a second coating application step 70 in which the substrate 1 conveyed from the first coating application step 70 is conveyed using an appropriate conveying means, such as a conveyor belt 81, and a coating material 31, 72 is applied to the surface of the substrate 1 having the first coating layer 2 made of the first coating material 31, 72. The second coating material 41, 82 a second coating layer portion 4 is formed by applying a coating material to the substrate 1; and a second coating layer portion 4 is formed by applying a coating material to the substrate 1. The substrate 1 is transferred from the second coating layer portion 4 by a suitable transfer means, such as a conveyor belt 91. The second coating material 41, 82 While the second coating material 41, 82 is in an undried state, a pattern surface 941 of a paint scraping member 95 having a desired curved surface and a desired paint scraping pattern 94 attached to a curved surface 93 of a holder 92 having the desired curved surface is brought into contact with the surface on which the second coating material 41, 82 is applied, and the paint scraping member 95 is moved within an appropriate range around a longitudinal axis 96 of the holder 92 of the paint scraping member 95. and / orWhile oscillating at an appropriate speed, the second coating material 41, 82 in the undried state is partially scraped off to form a continuous linear coating of the second coating material 41, 82 on the surface 3 of the substrate 1 to be coated. and / or discontinuous and / or The process is comprised of a paint scraping process 90 in which an operation for forming dot-like protrusions 4' in a pattern is carried out, and a baking and drying process 100 in which the substrate 1 transported from the paint scraping process 90 is baked and dried while being moved using an appropriate moving means, such as a conveyor belt 101.

[0033] In the present invention, as shown in FIG. 2, individual conveying means 61, 71, 81, 91, 101 are provided for each process, and the conveying means 61, 71, 81, 91, 101 are configured to be driven individually by conveying means driving devices 65, 75, 85, 195, 105 each consisting of an appropriate motor or the like. However, in some cases, it is also possible to use a single conveyor belt that is driven continuously and integrally through each of the above processes, and it is also possible to configure only the first paint application process 70 and the second paint application process 80 with a single conveying means. Furthermore, in the above-mentioned specific embodiment of the present invention, the individual conveying means driving devices 65, 75, 85, 195, 105 that drive the individual conveying means 61, 71, 81, 91, 101 in each process are provided with individual independent conveying means driving device control units 66, 76, 86, 196, 106, and the conveying means driving device control units 66, 76, 86, 196, 106 individually control the rotation speed and / or rotation direction of the conveying means driving devices 65, 75, 85, 195, 105 to desired values ​​in response to predetermined control signals.

[0034] Each of the conveying means driving device control units 66, 76, 86, 196, 106 is connected to an external driving instruction signal receiving means 67, 77, 87, 197, 107 configured to receive a predetermined driving control signal transmitted separately from the outside, and in response to the received random driving control signal (random driving control signal) from the outside, controls the driving speed of each of the conveying means driving devices 65, 75, 85, 195, 105 individually and randomly. Here, regarding specific configuration examples of the conveying means driving device control units 66, 76, 86, 196, 106 used in the present invention, if we take the configuration of one specific example of the conveying means driving device control unit 76 as an example, as shown in FIG. 3, for example, the conveying means driving device control unit 76 has a plurality of types of driving conditions that are individually and independently set in advance so that the rotation speed of the conveying means driving device 75 can be changed in a plurality of stages. and / or A storage means 791 is provided to store the rotation direction conditions, or the rotation speed is continuously set in a stepless manner. and / or A drive condition changing means 791' is provided which automatically selects and changes the conditions of the rotation direction, and the conveying means drive device control section 76 is connected to an external drive instruction signal receiving means 77 which is configured to receive a predetermined random drive control signal transmitted randomly from the outside, and when the external drive instruction signal receiving means 77 receives predetermined random signal information (random drive control signal) from the outside, it responds to the random signal information and randomly controls the drive speeds of the conveying means drive devices 65, 75, 85, 195, 105 individually. Alternatively, another internal random signal information generating means 78 provided in the conveying means driving device control section 76 is driven to generate another internal random signal information, and in response to the internal random signal information, driving a driving condition selecting means 79 connected to the driving condition storing means 791 or the driving condition changing means 791′, so that the driving condition selecting means 79 arbitrarily, automatically and randomly selects any driving condition from the driving condition storing means 791 or the driving condition changing means 791′ to control the drive conveying means driving device 75. In this specific example, it goes without saying that it is also possible to configure the drive condition storage means 791 or the drive condition change means 791' to be driven directly by the external random drive control signal without using the internal random signal information generating means 78.

[0035] The same configuration can be adopted in each of the other conveying means driving devices 65, 85, 195, and 105 of the present invention. The random signal generating means used in the present invention is not particularly specified, and conventionally known mechanical or electrical random signal generating devices can be used, as well as devices that generate random signals using electronic or quantum systems.Furthermore, it is also possible to employ a random gear system or use random signal information generated using AI technology.

[0036] For example, in FIG. 2, the conveying means in the first paint application process 70, the second paint application process 80, and the paint scraping process 90 are controlled. In case of external A control signal ( It is also possible to set it to send a random drive control signal. In this case, a drive instruction signal for driving the conveying means driving devices 75, 85, 195 in all steps And, A drive instruction signal for driving only one selected conveying means driving device among the And, A desirable example is to configure the system so that drive instruction signals, etc. that drive only two conveying means drive devices selected in any combination simultaneously or irregularly and randomly are transmitted individually and randomly in a time series.

[0037] Thereafter, in any of the three steps 70, 80 and 90, the external drive instruction signal receiving means (for example, 77) The random drive control signalThe individual random signal information generating means (for example, 78) in the specific process that receives the information generates another random signal information (internal random signal information) separately, and in response to the other random signal information, for example, randomly selects one driving condition from a plurality of driving conditions pre-stored in the appropriate storage means 791. Alternatively, For example, the driving condition selection means 791' automatically selects a specific driving condition at random, and the selected driving condition is transmitted to the conveying means driving device, for example, 75, whereby the conveying means driving device, for example, 75, is randomly controlled. The above-mentioned configuration may be adopted. Next, the first paint application step 70, which is the second step in the method of the present invention for producing a member having a wood-like painted surface approximating natural wood, will be described.

[0038] That is, in the first paint application process 70, as described above, the substrate 1 to be coated is moved to at least one predetermined surface 7 of the substrate 1 to be coated, which has been transported from the aforementioned transport process 60 via an appropriate transport means 71, and the first paint material 31, 72 is applied using a first application device 700, and a first coating layer 2 having a uniform thickness and made of the first paint material 31, 72 is formed on the surface 7 of the substrate 1 to be coated. In the second step of the present invention, before the surface 7 of the substrate 1 to be coated is coated with the first coating material 31, 72, Using appropriate paint materials It is also a desirable example to perform an undercoating treatment (primer treatment) to form a primer layer (not shown) with an appropriate thickness in advance. In the present invention, a first coating layer portion 2 having a uniform thickness is formed using a first coating device 700 that supplies the first paint material 31, 72 having an appropriate configuration to the surface portion 7 of the substrate portion 1 to be coated.The thickness is not particularly limited, but it is desirable that the thickness be a uniform thickness of, for example, 0.02 mm to 0.06 mm, preferably 0.03 mm to 0.05 mm. As shown in FIG. 4, the first coating device 700 of the present invention is provided with an appropriate ink holding tank 701 for storing the first coating material 31, 72, and a first coating material discharge unit 705 having a coating material injection nozzle unit 706 consisting of an appropriate number of first coating materials 31, 72 ranging from one to a plurality of first coating materials 31, 72, disposed at a position facing the surface 7 of the substrate 1 to be coated, and at least one appropriate first coating material supply pipe unit 708 connects the ink holding tank 701 and the first coating material discharge unit 705, and a first coating material supply control means 709 including a valve drive unit for adjusting the supply amount of the first coating material 31, 72 to an appropriate value is provided in a part of the first coating material supply pipe unit 708.

[0039] On the other hand, the first coating material discharge section 705 is configured to appropriately select from which nozzle of the coating material injection nozzle section 706 the predetermined first coating material 31, 72 is to be discharged, and 31,72 A paint injection nozzle control section 707 is provided to specify the amount or duration of the paint to be ejected or sprayed from the selected nozzle section 706, and the paint injection nozzle control section 707 receives an appropriate drive instruction signal from the outside to control the operation of the paint injection nozzle control section 707. Randomly to the desired state It is also a desirable example to provide a drive signal receiving means 720 for selectively driving the elements. Furthermore, in the first coating device 700 of the present invention, it is also possible to provide the ink holding tank 701 with a viscosity adjusting means 702 of the first coating material having an appropriate configuration, and the first coating material supply control means 709 may be provided with a control circuit for appropriately changing the open / close state of an appropriate coating material flow rate adjusting valve in the first coating material supply control means 709 in response to an appropriate external control signal. For example, a drive signal receiving means 720 connected to the drive signal receiving means 720 receives a drive control signal from the outside. It is also a desirable example that a paint flow rate adjusting valve drive control means 710 is provided.

[0040] However, in the second step of the present invention, the predetermined first paint material 31, 72 is formed on the surface portion 7 of the base material 1 with a substantially uniform thickness, and therefore the supply amount and viscosity of the first paint material 31, 72 or the amount of paint discharged from the paint injection nozzle portion 706 are set to be substantially constant, so it is desirable that the above-mentioned adjustment and control means are not substantially changed. In the present invention, the method of discharging the first paint material from the first paint material discharging portion 705 may be a spray method or a method of continuously discharging the first paint material in a sheet form. Furthermore, it is also a desirable example that an appropriate drying means 73 is provided between the second step 70 in the present invention and the third step described below for drying the first coating material 31, 72 applied to the surface of the substrate portion 1 in the second step 70.

[0041] Next, the second paint application step, which is the third step 80 in the present invention, will be described. That is, in the second paint application process 80, as described above, the substrate 1, which has been inserted from the first paint application process 70 via an appropriate conveying means and has the first coating layer 2 made of the first paint material 31, 72 formed on at least one predetermined surface 7 of the substrate 1 to be coated, is moved, and the second paint material 41, 82 is applied using the second application device 800 described below, and a second coating layer 4 made of the second paint material 41, 82 and having a uniform or uneven thickness is formed on the upper surface 6 of the first coating layer 2 formed on the predetermined surface 7 of the substrate 1 to be coated, in the form of a film, band, continuous line, intermittent line, or dot.

[0042] 5, the second coating device 800 of the present invention includes, for example, one or more appropriate ink holding tanks 801 for storing the second coating material 41, 82, and a coating material injection nozzle unit 806 having an appropriate number of second coating materials 41, 82 within the range of one to more than one, which is provided at a position facing the surface 2 of the substrate 1 to be coated. The second coating material discharge unit 805 At least one appropriate second coating material supply pipe 808 is provided between the ink holding tank 801 and the second coating material discharge section 805, and a flow rate control valve 809 for adjusting the supply amount of the second coating material 41, 82 to an appropriate value and a valve drive device 820 connected to the flow rate control valve 809 for opening and closing the flow rate control valve are provided in a part of the second coating material supply pipe 808, and the valve drive device 820 is further provided with a valve drive device control device 821 that can change and adjust the open / close state of the valve in the valve drive device 820 to any state. The valve drive device control device 821 is connected to an external signal receiving means 830, and in response to the reception of an appropriate external signal, the valve drive device control device 821 appropriately and randomly The open / closed state of each flow rate adjusting valve 809 is controlled to be appropriately randomly selected. Alternatively, it is also desirable to provide an internal random signal information generating means 78 as shown in FIG. 3 inside the valve drive device control device 821 and configure the valve drive device control device 821 to use the random drive control signal generated from the internal random signal information generating means 78.

[0043] Furthermore, in the second coating device 800 of the present invention, it is also possible to provide viscosity and color condition adjusting means 802, 802' for adjusting the viscosity or color conditions, etc. of the second paint material having an appropriate configuration in the ink holding tank 801. In this example, as will be described later, the pattern portions are to be formed in complex and irregular shapes and with different colors. Second coating material 41, 82 It is desirable to use a plurality of types of paints that are different from one another in viscosity and color, that is, in at least one of hue, brightness, and saturation. Therefore, as shown in FIG. 5, for example, a plurality of ink holding tanks 801, for example, four, are arranged, and each of them is filled with individual inks having different colors. Second coating material 41, 82 and store the relevant Second coating material 41, 82The viscosity adjusting means 802 may be configured to adjust the viscosity of the ink to an appropriate value, and the viscosity adjusting means 802 may be configured to function as a color condition adjusting means 802' to adjust the colors of the ink to different values. The second coating material 41, 82 It is also possible to store the ink in each of the ink tanks 801 individually.

[0044] In this example, when a plurality of ink holding tanks 801 are used, the ink is supplied to the desired ink holding tanks 801 via individual pipes 808. Second coating material 41, 82 It is also possible to use the ink by connecting it individually to the paint injection nozzle part 806 of the paint material discharge part 805, and also to use the ink by connecting it to the selected part of the ink holding tank 801. The second coating material 41, 82 It is also possible to supply the paint to all of the paint injection nozzles 806 of the paint material discharge section 805. Also, only one ink holding tank 801 is provided, and the viscosity adjusting means 802 is provided with a viscosity adjusting function and a color adjusting function, so that different inks having desired viscosity and color can be prepared. The second coating material 41, 82 is allowed to flow into the ink holding tank 801 in accordance with the time axis, The second coating material 41, 82 The paint may be ejected from the selected desired paint injection nozzle portion 806.

[0045] On the other hand, the second coating material discharge portion 805 is supplied with a predetermined second coating material. 41、82 From which nozzle of the paint injection nozzle part 806 the second paint material is to be ejected is appropriately selected, 41、82 A paint injection nozzle control unit 807 is provided to specify the amount or time for which paint is to be ejected or sprayed from the selected nozzle unit 806, and the paint injection nozzle control unit 807 receives an appropriate drive instruction signal from the outside. (e.g., random drive control signals, etc.) In a preferred embodiment, a drive signal receiving means 830' is provided to receive the signal and selectively drive the operation of the paint injection nozzle control section 807. In addition, the present invention First AspectThe method of discharging the second paint material from the second paint material discharging section 805 in the above may be a liquid discharging method or a spraying method, and may be a method of discharging the second paint material continuously or intermittently in a dotted or linear form, or may be a method of discharging the second paint material intermittently or continuously in a sheet form. In addition to the above-mentioned second coating material discharging method, First Aspect In this case, in order to be able to reproduce the more complex and uneven grain pattern of natural wood in the paint scraping process described below, it is also a desirable example to configure the main body portion of the second paint material discharge portion 805 itself to slide left and right within an appropriate range of length in a direction perpendicular to the movement direction of the base material portion 1. In addition to this specific example, by combining the above-mentioned changes in the method of discharging the second coating material, it becomes possible to arbitrarily form a coating pattern such as that shown in FIG. 7, which will be described later.

[0046] Furthermore, in this specific example In this regard, The second coating material discharging unit 805 has a sliding drive means 810 provided on its main body, and the second coating material discharging unit 805 is driven in a direction perpendicular to the direction of movement of the substrate 1. and / or distance traveled and / or A second paint material discharge part slide driving means control unit 811 is provided to determine the moving speed, and the second paint material discharge part slide driving means control unit 811 receives appropriate drive signal information (for example, a random drive signal) from the outside to determine the moving direction of the second paint material discharge part slide driving means 810. and / or distance traveled and / or An external drive signal information receiving means 830 ″ is provided for arbitrarily and randomly selecting and determining the moving speed and for moving and displacing the position of the second paint material discharging portion 805 . In this specific embodiment, the second coating material discharging part slide driving means control section 811 controls the movement direction of the second coating material discharging part slide driving means 810. and / or the distance traveled and / or It may be provided with an appropriate storage means 813 for storing control information relating to preferred specific examples of the movement speed, or may be provided with a control mechanism 813' that can randomly select any movement condition.

[0047] Furthermore, in this specific embodiment, when the second coating process is performed on the substrate 1 while it is moving, the substrate 1 itself may be moved and slid over an appropriate distance range at an appropriate timing in a direction perpendicular to the direction of movement of the substrate 1. A specific example of this may be, for example, a method in which the belt portion of the third conveying means 81 that is moving and conveying the substrate part 1, i.e., the entire third conveying means 81, is slid left and right in a direction perpendicular to the movement direction of the conveying means 81 at an appropriate timing over an appropriate moving distance, or a method in which the substrate part 1 mounted on the third conveying means 81 is slid left and right on the drive belt using an appropriate jig in a direction perpendicular to the drive direction of the third conveying means 81. In the former case, as shown in the second paint application process 80 in Figure 2, a conveying means displacement drive unit 831 is provided to slide the entire third conveying means 81 in a direction perpendicular to the conveying direction of the base material 1, and it is configured to move it left and right by an appropriate length at an appropriate timing using an appropriate drive mechanism, such as a motor.

[0048] The conveying means displacement driving unit 831 is provided with a conveying means displacement driving unit control unit 832, which controls the movement direction of the third conveying means 81. and / or the distance traveled and / or An appropriate storage means 838 for storing control information relating to a preferred specific example of the movement speed may be provided, or a control mechanism 838' for randomly selecting any of the movement conditions may be provided. Furthermore, the conveying means displacement driving unit control unit 832 receives appropriate driving signal information (for example, a random driving signal) from the outside and controls the moving direction of the third conveying means 81. and / or the distance traveled and / or An external drive signal receiving means 830 is provided for selecting and determining the speed of movement and for moving and displacing the position of the third drive mechanism 81 .

[0049] On the other hand, as a specific example of the latter, as shown in Figure 6, a pair of guide members 840 having an appropriate shape are abutted against the left and right side portions of the substrate 1 on both the left and right sides of the substrate 1 while it is being mounted on the third conveying means 81 and is configured to move the guide members 840 by a guide member sliding drive device 841 that slides the guide members 840 left and right within an appropriate range in a direction perpendicular to the moving direction of the conveying means 81, and the guide member sliding drive device 841 is provided with a guide member sliding drive control unit 842, which is also provided with an appropriate memory means 843 that stores and memorizes control information regarding preferred specific examples of the moving direction and / or moving distance and / or moving speed of the guide members 840, or a control mechanism 843' that can randomly select any of the moving conditions may be provided. Furthermore, the guide member sliding drive control unit 842 is provided with a drive signal receiving means 844 for receiving appropriate drive signal information (for example, a random drive signal, etc.) from the outside, selecting and determining the movement direction and / or movement distance and / or movement speed of the guide member 840, and arbitrarily and randomly moving and displacing the position of the guide member 840.

[0050] In the above-described specific example of the present invention, in the third step (second coating step) described later, in order to form the second coating film layer 4 consisting of the irregular and random pattern portions 50, 51 of an appropriate shape on the surface portion 6 of the first coating film layer 2 formed by the first coating material 31, 72 formed on the surface portion 7 of the base material 1, in this step, The second coating material 41, 82 It is desirable to carry out the coating work so that the first coating film layer 2 takes on a variety of coating film arrangement forms, and for this purpose, it is desirable to coat the first coating film layer 2 in a film shape that uniformly covers the entire surface 6 of the substrate 1 on which the first coating film layer 2 is formed, or to coat the first coating film ... The respective arrangement forms may have the same viscosity or color, or may have different desired viscosity or color. Second coating material 41, 82This can be achieved by irregularly and randomly selecting and driving the supply amount, the selection of a specific paint injection nozzle portion, or the sliding displacement operation in the left and right direction of the paint material discharge portion.

[0051] For this reason, in the present invention, a drive unit control unit is provided in all or some of the above-mentioned drive units provided in the second coating apparatus 800, which controls the drive operation of each of the drive units, and the drive unit control unit is provided with, if necessary, an external drive signal receiving means for receiving an appropriate drive control signal from the outside (for example, a random drive control signal, etc.) and driving the drive unit control unit under predetermined conditions, and if necessary, when the external drive signal receiving means receives a predetermined external drive signal, it generates a separate internal random signal therein, and it is desirable to configure the drive unit control unit to select one of the conditions from a drive condition storage means that pre-stores a plurality of drive control conditions for driving the drive unit in response to the internal random drive signal, or to select from drive condition selection means that can automatically select and set appropriate drive conditions in response to the internal random drive signal, and drive control the drive unit. In other words, in the present invention, it is a desirable example that all of the main driving devices in the second coating device 800 are individually operated and driven randomly in response to random driving signals input from the outside. In other words, in the present invention, the individual drive mechanisms at various locations are operated individually and independently in a random manner, and the combined synergistic effect of the random drives results in the automatic and efficient formation of complex, asymmetrical patterns that are almost impossible to reproduce identically.

[0052] Next, a specific example of the paint scraping step 90, which is the fourth step in the first embodiment of the present invention, will be described in detail with reference to the drawings. That is, the basic technical idea and technical configuration of the paint scraping step 90 according to the present invention is, as shown in Figs. 2 and 8, that in the second paint application step 80, the first paint film layer 2 formed on the surface of the substrate 1 is applied with a second paint film 2 on the surface 6. 2. Paint material The substrate 1 on which the second paint film layer 4' consisting of 41 and 82 has been formed is carried into the paint scraping process area 90 via appropriate conveying means 81 and 91 before the second paint film layer 4 has dried and solidified. Second coating material While the second coating material 41, 82 is still wet, a paint scraping member 95 having a desired curved surface 93 on which a desired paint scraping pattern 94 is attached is brought into contact with the surface on which the second coating material 41, 82 is applied, and the paint scraping member 95 is swung around a longitudinal axis 96 of the holder 92 of the paint scraping member 95 within an appropriate range of swing angles. and / or While being rocked at an appropriate rocking speed, the undried paint 41, 82 is partially scraped off to deposit a continuous linear pattern of the second paint material 41, 82 on the surface 6 of the substrate 1 to be coated. and / or discontinuous and / or The paint scraping member 95 is configured to perform an operation of forming dot-like protrusions 4' in a pattern, and when performing the paint scraping operation, the paint scraping member 95 is rotated by at least an angle of about a longitudinal axis 96 of the holder body 92. degree and / or The oscillation speed is automatically and randomly changed in response to random signal information generated from an electrical or mechanical random signal information generating means, while being linked to the movement speed of the substrate portion 1 in the transport direction.

[0053] Here, the paint scraping pattern 94 used in the present invention will be explained. As shown in FIG. 9, the paint scraping pattern 94 is formed by arranging grooves 5 having an appropriate width, appropriate height, and appropriate cross-sectional shape in a pattern shape as shown in FIG. 10 on one surface of a main body made of an appropriate material. As described above, the second coating layer 4 formed on the surface 3 of the first coating layer 2 made of the first coating material 31, 72 is The second coating materialWhile 41 and 82 are still wet, Second coating material A predetermined pattern forming groove portion 5 is formed on the surface that directly contacts the second coating paint layer 4, so that at least a portion of 41, 82 is gathered into the groove portion 5 by the pattern 94 and arranged in a collection of protrusion-like body formations 4' that are formed in various patterns with appropriate shapes and appropriate heights. The paint scraping pattern 94 is made of wood, metal, synthetic resin, paper, etc., and when it is made of synthetic resin components in particular, it is desirable to use a non-foaming synthetic resin material with closed bubbles. In the present invention, as shown in Figure 9, part or all of the second coating material 41 is removed from the surface 3 of the first coating layer 2 made of the first coating material 31, 72, and is absorbed and retained in the pattern forming groove portion 5 to form an appropriate pattern-shaped protrusion portion 4'.

[0054] The shape of the paint scraping pattern 94 according to the present invention is not limited to a specific one, and the pattern forming grooves 5 are formed in a pattern such as that shown in FIG. In the present invention, any one of the multiple paint scraping patterns 94 can be selected and used. The depth of the pattern forming groove portion 5 of the paint scraping pattern 94 in the present invention is not particularly specified, but it is desirable that it has a depth that corresponds to the desired height of the second coating paint layer 4. In the present invention, the protrusion height of the second coating layer 4 from the surface 3 of the first coating layer 2 is desirably 0.003 mm to 0.03 mm, preferably 0.005 mm to 0.02 mm, and the height of the second coating layer 4 may be uniform, but it is also desirable that it be randomly non-uniform. The height in question depends on the The second coating material 41 It also varies depending on the viscosity of the

[0055] Next, a specific example of the paint scraping operation using the paint scraping pattern 94 of the present invention will be described. As shown in FIGS. 2 and 8, a paint scraping member 95 is formed by attaching one selected from the plurality of desired paint scraping patterns 94 to a curved surface 93 of a holder 92 having a desired curved surface 93, and the paint scraping member 95 is rotated in an arbitrary direction within an arbitrary angle range around a longitudinal central axis 96 of the paint scraping member 95. and / or While being held so as to be able to swing back and forth at any swing speed, the pattern surface 94 having the grooves 5 is pressed from above the second paint film layer 4 in an undried state, and the base material 1 is brought into contact with the surface 3 of the first paint film layer 2 which is moving relatively along the transfer direction of the drive belt 91, and then the paint scraping member 95 is rotated at any time interval and in any direction within any angle range. and / or The base member 1 is moved relatively along the transport direction of the drive belt 91 while the paint scraping member 95 is oscillated and rotated about the central axis 96 at an arbitrary oscillating speed.

[0056] By this action, part or all of the undried second coating material 41, 82 that was present on the surface 3 of the first coating film layer 2 is scraped off from the surface 3 of the first coating film layer 2 and sucked into the pattern forming groove portion 5, thereby forming a protrusion portion 4' of appropriate height. During this time, the paint scraping member 95 is rotated by an appropriate rotation drive device 97 around the longitudinal axis 96 of the holder body 92 of the paint scraping member 95, and the longitudinal center axis 96 is rotated within an arbitrary swing rotation angle range around the center axis. and / or The wet state is rotated left and right at an arbitrary rocking speed and at an arbitrary time interval. Second coating material By partially scraping off 41 and 82, the relevant Second coating material The projections 4' formed by 41 and 82 form an irregular and asymmetrical pattern.

[0057] The rotary drive device 97 is provided with a rotary drive device control means 98 for controlling the swing rotation state of the rotary drive device 97, and the rotary drive device control means 98 is provided with an appropriate rotary drive device control information storage means 981 for storing the rotary drive device control information for setting the swing rotation state of the rotary drive device 97 to a plurality of arbitrary values ​​(rotation angle and / or rotation speed and / or rotation direction, etc.), or the rotary drive device control means 98 is provided with an automatic drive condition changing means 981' that can arbitrarily set the rotation state of the rotary drive device 97 in a stepless manner, and an external drive control signal (radio and an external drive signal receiving means 99 for receiving a desired external drive signal (random drive signal), and when the external drive signal receiving means 99 receives a desired external drive signal (random drive signal), the external receiving means 99 generates an appropriate internal random drive information signal in response to the reception, if necessary, and in response to the internal random drive information signal, selects desired drive control information from the rotary drive device control information storage means 981 or the drive condition changing means 981′ to control the oscillating rotary drive state of the rotary drive device 97 (see FIGS. 3 and 8).

[0058] In another specific example of the present invention, while the paint scraping operation is being performed, the paint scraping member 95 may be moved along the central axis of the longitudinal axis 96 of the holder 92 of the paint scraping member 95, i.e., in a direction perpendicular to the moving direction of the base member 1, in any direction and for any moving distance at random timing. and / or It is also possible to cause the slider to slide randomly in any direction, left or right, within any range of movement speed. In this specific example, as shown in FIG. 8, the paint scraping member 95 is connected to the longitudinal center axis 96, and the longitudinal center axis 96 can be moved in any direction along the central axis line. and / or A central axis movement drive device 950 is provided for moving and sliding at an arbitrary moving speed, and central axis movement drive device drive control means 951 is provided for controlling the moving and sliding state of the central axis movement drive device 950.

[0059] Furthermore, the rotation drive device control means 951 controls the movement and sliding state of the central axis sliding movement drive device 950 to a plurality of predetermined values ​​(sliding movement distance and / or sliding movement speed and / or Alternatively, an automatic movement drive condition changing means 953' may be provided which can arbitrarily and steplessly set the movement and sliding state of the central axis movement drive device 950, and an external drive signal receiving means 952 may be provided which receives an external drive control signal (random drive signal information) from the outside, and when the external drive signal receiving means 952 receives a desired external drive signal information (random drive signal), the external drive signal receiving means 952 generates an appropriate internal random drive signal in response to the reception, and in response to the internal random drive signal, the desired drive control information is selected from the central axis movement drive device control information storage means 953 or drive condition changing means 953' to control the movement and sliding drive state of the rotation drive device 950 (see FIG. 8).

[0060] Alternatively, in this specific example of the present invention, as shown in Figure 8, a holding member displacement drive device 103 is provided that slides the holding member 92 of the paint scraping member 95 back and forth in a direction parallel to the conveying direction of the substrate 1 (a direction perpendicular to the longitudinal center axis 96 of the holding member 92) over any distance at any timing and at any speed, and the holding member displacement drive device 103 is provided with a holding member displacement drive device control means 104 for controlling the displacement movement sliding state of the holding member displacement drive device 103 in the conveying direction of the substrate 1. Furthermore, the holding member displacement driving device control means 104 controls the displacement driving state of the holding member 95 to a plurality of arbitrary values ​​(sliding displacement distance and / or sliding displacement direction and / orAlternatively, an automatic displacement drive condition changing means (for example, a continuously variable transmission or the like) 105' may be provided which is capable of arbitrarily and steplessly setting the displacement sliding state of the holding member displacement drive device 103, and an external drive signal receiving means 106 is provided which receives an external drive control signal (random drive signal) from the outside, and when the external drive signal receiving means 106 receives a desired external drive signal (random drive signal), the external drive signal receiving means 106 generates an appropriate internal random drive signal in response to the reception, and in response to the internal random drive signal, the desired drive control information is selected from the holding member displacement drive control information storage means 105 or the drive condition changing means 105' to control the displacement sliding drive state of the holding member displacement drive device 103.

[0061] Furthermore, in this specific example, in the paint scraping process 90 described above, in order to be able to reproduce the more complex and uneven grain pattern of natural wood, the base material 1 itself may be moved and slid over an appropriate distance range at an appropriate timing in a direction perpendicular to the direction of movement of the base material 1. As a specific example, for example, the belt portion of the fourth driving means 91 that moves and conveys the base material 1, that is, the entire fourth driving means 91, can be moved at any timing in a direction perpendicular to the moving direction of the conveying means 91 by any length. and / or The method may involve sliding the substrate 1 left and right at an arbitrary moving speed, or may involve using a jig similar to an appropriate jig 840 as shown in Figure 6 to slide the substrate 1 mounted on the fourth driving means 91 left and right in a direction perpendicular to the driving direction of the fourth driving means 91. In the former case, as shown in the second paint application process 90 in FIG. 2, a drive unit displacement device 930 is provided to slide and move the entire fourth conveying mechanism 91 in a direction perpendicular to the conveying direction of the substrate 1, and the conveying unit displacement device 930 is driven by an appropriate drive mechanism, for example, a conveying unit displacement device drive mechanism 931 configured by a motor or the like, to move the conveying unit 930 by an arbitrary distance at an arbitrary timing. and / or It is configured to move left and right by a length at any speed.

[0062] The transport unit displacement device drive mechanism 931 is provided with a transport unit displacement device drive mechanism control section 932, which controls the direction of movement of the transport unit displacement device 930. and / or the distance traveled and / or It is also possible to provide an appropriate storage means 933 for storing control information relating to preferred specific examples of the movement speed, or to provide a control mechanism 933' that can randomly select any of the movement conditions (see Figures 2 and 3). Furthermore, the transport section displacement device drive mechanism control unit 932 receives appropriate drive signal information (for example, a random drive signal) from the outside and controls the moving direction of the transport section displacement device unit 930. and / or the distance traveled and / or A drive signal receiving means 934 is provided for arbitrarily selecting and determining the moving speed and for moving and displacing the position of the conveying section displacing device section 930 .

[0063] On the other hand, to explain the latter specific example in more detail, a pair of guide members 940 having an appropriate shape are brought into contact with the left and right side surfaces of the base member 1 while the base member 1 is being moved on the fourth conveying means 91, as shown in FIG. 6, and the guide members 940 are moved at an arbitrary moving speed in a direction perpendicular to the moving direction of the driving device 91. and / or The guide member 940 is configured to be moved by a guide member slide drive device 941' that slides within an arbitrary moving distance range, and the guide member slide drive device 941' is provided with a guide member slide drive control unit 942, and the moving direction of the guide member 940 is and / or any distance traveled and / orIt is also possible to provide an appropriate memory means 943 for storing control information relating to preferred specific examples of any movement speed, or to provide a control mechanism 943' that can randomly select any of the movement conditions using a stepless change mechanism. Furthermore, the guide member slide drive control unit 942 receives appropriate drive signal information (for example, a random drive signal) from the outside and controls the moving direction of the guide member 940. and / or the distance traveled and / or An external drive signal information receiving means 944 is provided to select and determine the moving speed and to move and displace the position of the guide member 940.

[0064] In addition, in the present invention, the paint scraping device of the paint scraping step 90 95、 900 includes a drive unit control unit for controlling the drive operation of each of the drive units, as shown in FIG. 3, for all or some of the drive units. (e.g., 76) and an external drive signal receiving means (e.g., a random drive control signal) is provided to the drive device control unit, and the drive device control unit receives an appropriate drive control signal from the outside and drives the drive device control unit under predetermined conditions. For example, the external signal receiving means 77 shown in FIG. When the external drive signal receiving means receives a predetermined external drive signal, For example, using the internal random signal information generating means 78 shown in FIG. A drive condition storage means ( For example, the information storage means 791 shown in FIG. 3 is used. It is desirable to configure the drive device so that one of the conditions is selected in response to the internal random drive signal, or a drive condition selection means that can automatically select and set an appropriate drive condition is selected in response to the internal random drive signal, and the drive device is controlled.

[0065] In addition, in this specific example of the present invention, as shown in Figure 13, the paint scraping member 95 is composed of a cylindrical body 300 having a central rotation axis, and paint scraping patterns 94 having multiple different groove patterns formed on the outer surface of the cylinder are arranged adjacent to each other.The paint scraping member 95 may be incorporated into the coating device shown in Figure 8 as a component similar to the paint scraping member 95 described above, and in response to an arbitrary random drive signal from the outside, the cylindrical body 300 may be rotated in an arbitrary direction, and a predetermined pattern may be arbitrarily and randomly selected from the multiple patterns to perform the paint scraping operation. In other words, in the present invention, it is a desirable example that some or all of the main driving devices in the paint scraper device 900 are each operated arbitrarily and randomly and individually driven randomly in response to a random driving signal input from outside. Specifically, when a plurality of paint scraping patterns 94 are attached to the curved surface 93 of the holder portion 92 of the paint scraping member 95 in a state in which they can be arbitrarily selected, a pattern selection means for selecting a desired one of the plurality of paint scraping patterns 94 and a pattern selection means control means for controlling the pattern selection operation of the pattern selection means are provided, and the pattern selection means control means is configured to drive the pattern selection means in response to random signal information generated from a separately provided electrical or mechanical random signal information generating means, thereby randomly selecting one of the plurality of scraping patterns.

[0066] The present invention The second aspectAs another specific example, particularly in the third step 80 and / or the fourth step 90, the conveying means 81, 91 may be provided with a conveying means position changing mechanism 831, 931 for moving and displacing the conveying means 81, 91 itself in a direction perpendicular to the substrate conveying direction of the conveying means 81, 91 and a conveying means position changing mechanism control section 832, 932 for controlling the driving of the conveying means position changing mechanism 831, 931, or a mechanism for moving the substrate 1 on the conveying means 81, 91 by contacting the substrate 1 moving on the conveying means as shown in FIG. In a preferred embodiment, a substrate sliding means 840, 940 for sliding in a direction perpendicular to the substrate conveying direction and a substrate sliding means drive mechanism control unit 842, 942 connected to a drive mechanism 841, 941 of the substrate sliding means 840, 940 are provided, and the conveying means position change mechanism control unit 832, 932 or the substrate sliding means drive mechanism control unit 842, 942 is controlled in response to random signal information generated from a separately provided random signal information generating means, thereby automatically and randomly displacing the substrate portion 1 in a direction perpendicular to the substrate conveying direction.

[0067] In this embodiment of the present invention, the final step is to remove the undried paint from the fourth step, ie, the paint scraping step 90. Second coating material 41 The substrate part 1, on which the second paint film layer 4 made up of the above-mentioned material forms an appropriately non-uniform and random pattern, is carried into the baking and drying process 100 by an appropriate conveying means 101, and the baking and drying process is carried out using an appropriately provided drying means (not shown).

[0068] On the other hand, the present invention The second aspectAs a specific example, as shown in FIG. 2, there is a coating treatment device 2000 that performs a desired coating treatment on at least a part of a surface 7 of a substrate 1 to be coated while moving the substrate 1 to be coated. The coating treatment device 2000 comprises a conveying mechanism 61 that constitutes a carrying-in process 60 that carries at least the substrate 1 to be coated into the coating treatment section and has the function of passing it through each treatment section described below in order, and a coating device that applies a synthetic resin component, wood flour component, and cellulose nanofine to the surface 7 of the substrate 1 to be coated that has been carried in via the conveying mechanism 61 and is continuously moving. a first coating processing section (70) that applies a coating material consisting of a synthetic resin composition (31, 72) for forming a first coating film (31, 72) using a first coating device (705), the synthetic resin composition being composed of a synthetic resin composition composed of a wood flour component and a carbon nitrile (CNF) component, and the wood flour component being uniformly dispersed within the synthetic resin composition, thereby forming a first coating layer (2) having a uniform thickness; and a first coating processing section (70) that applies the first coating layer (2) to a first coating layer surface (6) of the substrate (1) to be coated that has been transported via the transport mechanism and is continuously moving. The second coating processing section 80 applies a second coating synthetic resin composition 41, which is the same as or different from the first coating synthetic resin composition constituting the coating layer section 2 and differs from the first coating synthetic resin composition in at least one of viscosity and / or hue, brightness, and saturation, by using a second application device 800, to form a second coating layer section 4 consisting of film-like bodies, linear bodies, or dot-like bodies having a desired height; and the coating section 80 applies a second coating synthetic resin composition 41, which is the same as or different from the first coating synthetic resin composition constituting the coating layer section 2, by using a second application device 800, to form a second coating layer section 4 consisting of film-like bodies, linear bodies, or dot-like bodies having a desired height; and the coating section 80 applies a second coating synthetic resin composition 41, which is carried in via the conveying mechanism and is continuously moving, to the coating layer section 2 on which the second coating layer section 4 has been formed. A paint scraping member 95, which has a curved surface 93 of a cylindrical body having a cylindrical or semicircular cross section and a desired paint scraping pattern 94 attached thereto, is brought into contact with the surface of the second coating layer 4 of the substrate 1 to be coated so as to reach the vicinity of the bottom surface of the second coating layer 4. The paint scraping member 95 is then swung within an appropriate range around a longitudinal axis 96 of the paint scraping member 95 to partially scrape the second coating layer 4, thereby forming continuous, intermittent, or dot-like protrusions 4' having a predetermined height in a pattern 50.and a baking and drying treatment section 100 that dries the substrate 1 to be coated, on which the protruding pattern 4' has been formed and discharged from the paint scraping treatment section 90, at a predetermined temperature. Manufacturing equipment for components with wood-like painted surfaces similar to natural wood It is 2000.

[0069] Furthermore, In the second aspect of the present invention, A part or all of the main driving mechanisms in each of the conveying mechanism 61, the first painting processing section 70, the second painting processing section 80, the paint scraping processing section 90 and the baking drying processing section 100 are As shown in FIG. 3, a random signal information generating device such as an internal random signal information generating means 78 that individually generates mutually different random signals, or a random operation generating mechanism such as an appropriate drive control unit 76 including a drive condition selecting means such as a drive condition selecting means 79 that selects a desired drive condition from a plurality of drive conditions stored in advance and issues a drive instruction, may be individually connected, and each drive mechanism unit may be individually and randomly controlled according to the random signal or random operation instruction individually generated from each random signal generating device or each drive condition selecting means. A preferred example is an apparatus for manufacturing a member having a wood-like painted surface that resembles natural wood, characterized by being configured as follows: In the above specific example, the main driving mechanisms are: Drive information signal receiving means 720, 830, 99, etc. are provided for receiving the drive information signal transmitted from the externally provided random drive signal information generating means 200, and the drive information signal from the random drive signal information generating means 200 is received via wired means or wireless means, It is desirable that the drive mechanism is controlled in response to the received external random drive information signal.

[0070] Alternatively, each of the drive mechanisms may be individually Appropriate Directly attach a random drive information signal generator, The relevant Individual random drive information signal generator generates Random The drive mechanisms may be directly controlled in response to the drive information signal. In this example, the system described above must be randomly controlled. Other The driving mechanisms and their driving conditions are preferably as follows: That is, for example, the driving conditions of the transport driving mechanisms in the transport mechanisms of the substrate 1 to be coated in each of the transport mechanisms 61, 71, 81, 91, 201 in a direction parallel to the traveling direction of the substrate 1 to be coated, the driving conditions of the moving mechanisms in the transport mechanisms in a direction perpendicular to the traveling direction of the substrate to be coated, the driving control conditions of the drive control mechanisms for position control in the first coating device 700 in a direction perpendicular to the traveling direction of the substrate to be coated and for controlling conditions such as the color or viscosity of the first synthetic resin composition paint 31, 72 for forming a coating film, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated in the first coating device 700, the driving conditions of the drive control mechanisms for controlling conditions such as the color or viscosity of the first synthetic resin composition paint 31, 72 for forming a coating film, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated in the second coating device 800, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated in the first coating device 700, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated in the first coating device 700, the driving conditions of the drive control mechanisms for controlling conditions such as the color or viscosity of the first synthetic resin composition paint 31, 72 for forming a coating film, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated in the second coating device 800, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated, the driving conditions of the drive control mechanisms for position control in the direction perpendicular to the traveling direction of the substrate to be coated, the driving conditions of the drive control mechanisms for position control in Parallel directions and / orIt is desirable that the control conditions include the drive conditions of the movement mechanism in the orthogonal direction, the drive control conditions of the drive control mechanism such as the discharge amount of the synthetic resin composition paint for forming the second coating film or the selection conditions control of the viscosity, hue, brightness, saturation, etc. of the paint, the drive control mechanism for the scraping device 95, the position control mechanism, the rotation angle and / or rotation speed control mechanism, or the paint scraping pattern 94 selection mechanism.

[0071] As described above, in the present invention, it is possible to adopt a single drive belt system to consistently traverse all the processes. However, it is desirable to control and drive at least the second to fourth processes in a continuous, integrated manner. Furthermore, as described above, at least the various drive mechanisms provided in each process are A part of the drive mechanisms is configured to be driven and controlled by an appropriate control means corresponding to the drive mechanisms, The control means receives a drive signal from an external device and controls the drive of the drive device. Drive Control Signal In some cases, all of the external signal receiving means may be provided separately. Internal random drive signal generating means By connecting the drive mechanism to the external device via wire or wirelessly, the drive mechanism can receive appropriate and random signals from the external device. Drive Control Signal It is preferable to configure the circuit so that it is driven randomly in response to the

[0072] In addition, the respective drive mechanisms External drive instruction signal receiving means As shown in Figure 3, the external drive instruction signal receiving means It is also a desirable embodiment to configure the device so as to generate a further internal random drive signal internally. Furthermore, in the present invention, as described above, the drive control of each mechanism constituting the device 2000 in the present invention is performed by individually controlling the main drive device in each mechanism without using an external random information generating means. A random information signal generating means such as the internal random signal information generating means 78 or the driving condition selecting means 79 shown in FIG. , each of the elements is driven by a random drive control signal generated or selected in response to the random information signal. Drive Unit It is also a desirable example to configure the control means to control be. By adopting such a configuration, at least some or all of the main drive mechanisms in each of the above processes are driven individually and randomly by mutually different random signals, and the respective random drive operations are combined in a complex manner, so that uniform patterns or patterns with identical patterns do not actually occur, and random patterns with the natural and complex characteristics of natural wood can easily be formed. Furthermore, in the present invention, it is possible to produce components with wood-like painted surfaces that closely resemble natural wood, which is the objective of the present invention, fully automatically and mechanically without any human intervention, which will greatly contribute to improving productivity and reducing costs. The random drive operation signals used in the present invention can be generated using known random signal generating means, and the generation method may be mechanical or electrical, or may even be generated using AI technology.

[0073] Furthermore, as another specific example of the second aspect of the present invention, in the first coating processing section 70, First coating material 31, 72 viscosity and / or hue, brightness, and chroma adjustment means are provided to adjust the viscosity to meet at least one desired condition. First paint material storage means 701 and the adjusted First coating material 31, 72 of the first coating device 700 Paint material ejection means Set the desired paint supply amount for 705 Paint material supply amount control means 709 and The coating material supply amount control means via 709 First coating material Win 31,72 The paint material jetting means 705 and Paint material ejection means 705 from one or more paint ejection means 706 First coating material 31, 72 In a preferred embodiment, the second coating treatment section 80 is configured to spray a synthetic resin composition for forming a coating, which is the same as or different from the first synthetic resin composition for forming a coating 31, 72, onto the surface 7 of the substrate 1 to be coated. First coating material One or more colors that differ in at least one of hue, brightness, and saturation Second coating materialThe second coating material storage means 801 for storing the second coating materials 41, 82 may or may not have a viscosity adjusting means 802 for adjusting the viscosity of the second coating materials 41, 82 to a predetermined value, and one or more coating material supply pipes 808 connected to each of the second coating material storage means 801 are provided, and the second coating materials 41, 82 are supplied to the second coating device 800 through the coating material supply pipes 808. Paint material ejection means When supplying the paint to the paint supply pipe 808, a coating material supply amount control means 809 is provided in the paint supply pipe 808 to set a desired paint supply amount for the paint, Paint material supply amount control means via 809 Second coating material 41,82 The coating material ejection means 805 and Paint material ejection means 805 from one or more paint jet nozzle portions 806 Second coating material 41,82 in question First coating material It is also a desirable example that the nozzle is configured to be sprayed onto the surface of the film layer 2 formed by 31 and 72. In addition, the control method for each control mechanism in this example can employ the random control method described above. As another specific example of the second aspect of the present invention, after applying a suitable first coating material to at least one surface of a substrate to be coated, and preferably after carrying out a drying treatment, the coated substrate is moved by a suitable conveying means 81, and a coating material is applied to the surface of the coated substrate 1. The first coating material may be the same as or different from the first coating material.After the second coating material is applied uniformly or in a desired pattern, while the second coating material is still wet, a paint scraping member 95 is formed by attaching one or more desired paint scraping patterns 94 to a desired curved surface 93 of a holder 92, and the outer surface of the selected pattern 94 is brought into contact with the surface on which the second coating material has been applied. The paint scraping member 95 is then swung within an appropriate range around a longitudinal axis 96 of the holder 92 of the paint scraping member 95, and the wet coating material is then applied. The device 900 continuously and randomly performs an operation of partially scraping off the second paint material in a dried state to form continuous linear and / or broken linear and / or dot-like protrusions 4' made of the second paint material in a pattern 50, 51 on the surface of the substrate 1 to be coated without manual intervention, and includes at least a swing angle / swing speed changing drive means 97 for swinging the holder 92 of the paint scraping member 95 about its longitudinal axis 96 at an appropriate swing angle and / or appropriate swing speed, and a drive means for moving the substrate 1. The swing angle / swing speed change drive means 97 and the conveying speed change drive means 195 are provided with a swing angle / swing speed change drive means control section 98 for controlling the swing angle / swing speed change drive means 97 and a conveying speed change drive means control section 196 for controlling the conveying speed change drive means 195, respectively. The swing angle / swing speed change drive means 97 and the conveying speed change drive means 91 are mutually linked, and are separately controlled by a swing angle / swing speed change drive means control section 196 for controlling the conveying speed change drive means 195. The apparatus (2000) for manufacturing a member having a wood-like painted surface approximating natural wood is characterized in that it is configured to automatically and randomly drive the swing angle / swing speed changing drive means (97) and the conveying speed changing drive means (195) individually by automatically and randomly controlling the swing angle / swing speed changing drive means control section (98) and / or the conveying speed changing drive means control section (196) individually in response to random signal information generated from one or more random signal information generating means (200) provided in the apparatus (2000).

[0074] In yet another specific example of the second aspect of the present invention, after applying an appropriate first coating material to at least one surface of a substrate to be coated, preferably after subjecting the coated substrate to a drying treatment, a second coating material, which may be the same as or different from the first coating material, is applied uniformly or in a desired pattern to the surface of the coated substrate 1 while the coated substrate is being moved via an appropriate conveying means 81, and then, while the second coating material is still wet, the outer surface of one of the patterns 94 selected from a paint scraping member 95 having a desired curved surface 93 of a holder 92 with one or more desired paint scraping patterns 94 attached to the curved surface 93 is brought into contact with the surface to which the second coating material has been applied, and the paint scraping member 95 is swung within an appropriate range around a longitudinal axis 96 of the holder 92 of the paint scraping member 95 to partially scrape off the wet second coating material, thereby leaving a continuous linear pattern of the second coating material on the surface of the substrate 1 to be coated. and / or is discontinuous and / or The device 900 performs the operation of forming dot-like protrusions 4' in a pattern 50, 51 continuously and randomly without manual intervention, and at least the holder 92 of the paint scraping member 95 is The holding body portion 92 A suitable swing angle around the longitudinal axis 96 and / or The swing angle / swing speed change drive means 97 for swinging at an appropriate swing speed and the conveying means 91 for moving the substrate 1 are provided with a conveying speed change drive means 195 for driving the conveying means 91 at an appropriate speed, and the swing angle / swing speed change drive means 97 and the conveying speed change drive means 195 are provided with a swing angle / swing speed change drive means control means 98 for controlling the swing angle / swing speed change drive means 97 and a conveying speed change drive means control means 196 for controlling the conveying speed change drive means 195, respectively. The swing angle / swing speed change drive means 97 and the conveying speed change drive means 91 are linked to each other, and the swing angle / swing speed change drive means control means 98 controls the swing angle / swing speed change drive means 98 in response to random signal information generated from one or more random signal information generating means 200 provided separately. and / orThe manufacturing device 2000 for components having a wood-like painted surface approximating natural wood is characterized in that it is configured to automatically and randomly drive the swing angle / swing speed change drive means 97 and the conveying speed change drive means 195 individually by individually controlling the conveying speed change drive means control unit 196 automatically and randomly.

[0075] On the other hand, in the present invention, the corresponding drive operation control units for controlling the operation of the drive devices in each of the member mechanism parts described above are configured so that external signal receiving means connected to the drive operation control units issue appropriate drive control information in response to a random information signal based on an electrical signal received from the outside, or in some cases, in response to a random internal signal generated internally, thereby causing a predetermined drive device to perform a predetermined operation. However, below, a specific example will be described in which the operation control of each desired drive device is driven while being randomly controlled by mechanical random drive signal information generated based on a mechanical system. That is, Figures 11 and 12 show a drive control device 2001 configured to randomly select and control, using mechanical random information generating means, the drive conditions of the drive mechanism for the oscillating and rotating motion of the holding member 92 provided on the scraping member 95 used in the paint scraping device 900 used in the paint scraping process 90, which is the fourth step in the present invention, about the longitudinal center axis 96.

[0076] That is, in FIG. 11 and FIG. 12, the base material part 1 is mounted on the top An appropriate frame-shaped frame body portion 940' is provided on top of a conveying mechanism 91 consisting of a conveyor belt or the like for conveying, so as to straddle the conveying mechanism 91, and a pair of first bearing portions 962 are provided on both left and right ends of the lower end portion 961 of the frame-shaped frame body portion 940', which respectively rotatably hold both end portions of the longitudinal center axis 96 provided on the holding member 92 provided on the scraping member 95. On the other hand, the frame-shaped frame portion 940′ is connected to a portion 970 in the vicinity of the upper end thereof via an appropriate second bearing portion 948. The rotation shaft 945 is connected to a roller 964 (to be described later). A first eccentric roller 964 is provided which is eccentrically positioned at an arbitrary distance from the true center P of the roller, and the rotation shaft 945 of the first eccentric roller 964 is connected to an appropriate drive mechanism (e.g., a rotary motor, etc.) 946 so as to be rotated in any direction and at any rotation speed. Furthermore, the drive mechanism 946 is connected to an appropriate rotation drive control means 947, and the rotation drive control means 947 is configured to be able to change the rotation direction and / or rotation speed of the drive mechanism 946 at any random timing.

[0077] On the other hand, in an arbitrary space region between the second bearing portion 948 and the first bearing portion 962, an appropriate bearing portion 950′ is provided at the protruding tip portion of a support beam member 949 provided protruding from a part of the frame-shaped frame portion 940′. A second eccentric roller 952, in which the rotation axis 951 of the roller 951 described later is provided eccentrically by an arbitrary distance from the true center P of the roller 952, The scraping device 95 is attached in a rotatable state to one end portion of the longitudinal center axis 96 of the holding member 92. is a lever portion 958 to which one end 957 of the lever portion 958 is fixed integrally. is provided on the other end 953 of the swing lever portion 958 via an appropriate third bearing portion 954. Roller 956, which will be described later The rotation axis 955 is Roller 956A third eccentric roller 956 is rotatably mounted, eccentrically positioned at an arbitrary distance from the true center P of the scraping member 95. Furthermore, the first eccentric roller 964, the second eccentric roller 952, and the third eccentric roller 956 are connected by a circular drive belt 960 for driving operation. The rotational motion of the drive mechanism 946 rotates the first eccentric roller 964 asymmetrically, which in turn promotes the asymmetric movement of the second eccentric roller 952. This is then transmitted to the third eccentric roller 956, further promoting the asymmetric rotation of the third eccentric roller 956, thereby enabling the swing lever 958 to swing irregularly and randomly up and down about the longitudinal central axis 96. As a result, the scraping member 95 can swing randomly in any direction and at any swing angle about the longitudinal central axis 96. In this embodiment, the planar shape of each of the first to third eccentric rollers 964, 952, and 956 does not have to be a perfect circle, but it is also a preferred embodiment to use an appropriate modified shape, such as an ellipse, triangle, rectangle, or modified shape thereof. Furthermore, in the above specific example, the rotational speed of the rotating part in the drive mechanism 946 can be changed randomly, as described above, for example, in response to a random signal transmitted from an appropriate random information generating means, thereby achieving further randomization.

[0078] Next, the configuration of yet another example of the present invention will be described. In other words, in this other specific example, the surface shape of the substrate 1 to which the paint of the present invention is applied is not a flat surface, but a substrate 1 having a surface composed of a curved surface with an appropriate curvature. for example, At least a part of the substrate 1 to be coated may be a plate-like body having a curved surface. Furthermore, the substrate 1 may be in the form of a solid cylinder or a hollow cylinder as shown in FIG. 14 or FIG. The cross section of the cylindrical body may be either a perfect circle or an ellipse. When applying the coating method of the present invention to various substrate parts 1 having the curved surfaces described above, the desired substrate part 1 is basically loaded onto an appropriate conveying mechanism and continuously passed through the five steps from the loading step 60 to the baking drying step 100 shown in Figure 2. However, particularly as shown in Figure 15, if the contact point P between the substrate part 1 and the conveying mechanism parts 71, 81, 91, etc. becomes unstable, for example, if the cross-sectional shape of the substrate part 1 is circular or elliptical, it is desirable to carry out the conveying process with a substrate part holding jig 965 having an appropriate substrate part receiving part 966 interposed therebetween.

[0079] In the first paint application step 70 in this specific example, it is desirable to use a spray method to apply the first paint 31, 72 to the base material 1, and it is desirable to spray an appropriate amount of the first paint 31, 72 having an appropriate viscosity over the entire surface of the base material 1 so as to form a uniform film layer. In this specific example, since the surface of the substrate 1 is curved, it is necessary to prevent the paint from flowing down from both ends of the substrate 1, so it is desirable to set the viscosity of the first paint 31, 72 higher than the viscosity in the basic specific example of the present invention described above. Then, in the second paint application process 80 in this specific example, it is desirable to use a spray method for the application operation when applying the second paint 41, 82 to the surface of the base material 1 on which the dried coating of the first paint 31, 72 has been formed, and it is desirable to spray an appropriate amount of the second paint 41, 82 having an appropriate viscosity over the entire surface of the base material 1 on which the coating of the first paint 31, 72 has been formed, so as to form a uniform film layer of the second paint 41, 82.

[0080] Next, in the paint scraping step 90 in this example, the paint scraping member 95 is brought into contact with the film layer of the second paint 41, 82 in the undried state to partially scrape off the second paint 41, 82 and form the desired grain pattern. When at least a part of the substrate 1 to be coated includes a curved surface,Unlike the paint scraping member 95 described above, it is desirable to use a paint scraping member 95' consisting of a drum-shaped cylinder formed with a curved surface having a radius of curvature that approximately matches the radius of curvature of the curved surface of the base material portion 1, as shown in Figures 14 and 15. It is desirable that the portion of the curved outer surface of the paint scraping member 95' in the present invention that abuts against the curved surface of the base material 1 be made of the same material as the paint scraping member 95 in the above-mentioned specific example, and further, as shown in Figures 14 and 15, the curved outer surface of the paint scraping member 95' is provided with a plurality of grooves 5 formed in the same pattern as that described in Figure 10 as shown in the above-mentioned specific example of the present invention.

[0081] In addition, it is a desirable example that the paint scraping member 95' consisting of the drum-shaped cylindrical body is configured to oscillate and rotate around a central axis 96' at an appropriate interval and at an appropriate speed in the left and right directions by an appropriate rotation drive mechanism 97'. In this example, by replacing the paint scraping member 95' with the paint scraping member 95 of the paint scraping device 900 in the paint scraping process 90 shown in Figure 2 and incorporating it, it is possible to randomly perform paint scraping operations in accordance with the same operation and control method as in the above example. That is, the rotation direction, rotation angle, rotation time, rotation speed, etc. of the paint scraping member 95' are configured to be arbitrarily and randomly selected and driven, as shown in the above specific example. In the specific example shown in Figures 14 and 15, approximately half of the surface area of ​​the cylindrical substrate 1 is subjected to the painting and scraping processes, and the remaining half of the surface area can then be painted and patterned over the entire surface of the cylinder by inverting the substrate 1, loading it onto the conveying device, and passing it through each of the above-mentioned processing steps in sequence. The same operation can be carried out when the cross section of the substrate 1 is elliptical. When the cross section of the substrate 1 is a semi-cylindrical or curved flat plate, it goes without saying that the coating operation can be completed in one treatment operation. [Explanation of symbols]

[0082] 1 Base material part 2. First coating layer 3. Surface portion of the first coating layer 4. Second coating layer bulge 4' projection 5 Groove 6 Part of the surface of the first coating layer 7. Surface of the base material 10 Synthetic resin composition 30. Components with wood-like painted surfaces 31,72 First coating material 41,82 Second coating material 50,51 Pattern section 60 Loading process 61, 71, 81, 91, 101 Means of transport 65, 75, 85, 195, 105 Conveyor means drive device 66, 76, 86, 196, 106 Conveyor means drive device control section 67, 77, 87, 197, 107 External drive instruction signal receiving means 70 First paint application process 78 Internal random signal information generating means 79 Driving condition selection means 80 Second paint application process 90 Paint scraping process 92 Holding body part 93 Curved Surface 94 Paint scraping patterns 95, 95' paint scraper 96 Longitudinal Axis 97 Rotational drive unit 98 Rotation drive device control means 99 External drive signal receiving means 100 Baking and drying process 103 Holding member displacement drive device 104 Holding member displacement drive device control means 105 Holding member displacement drive device control information storage means 106 External drive signal receiving means 200 Random signal information generating means 300 Cylinder 701 Ink holding tank 702 Viscosity adjustment means 705 First paint material discharge unit 706 Paint injection nozzle 707 Paint injection nozzle control unit 708 First paint material supply pipe section 709 First coating material supply control means 710 Paint flow rate adjusting valve drive control means 720 Drive signal receiving means 791 Memory means 791' Driving condition changing means 800 Second Coating Device 801 Ink holding tank 802,802' Viscosity color condition adjustment means 805 Second paint material discharge unit 806 Paint injection nozzle part 807 Paint injection nozzle control unit 808 Second paint material supply pipe section 809 Flow Control Valve 811 Second coating material discharge unit slide drive means control unit 820 Valve Drive Unit 821 Valve drive device control device 830 External drive signal information receiving means 831 Conveying means displacement drive unit 832 Conveying means displacement drive unit control unit 840,940 Pair of guide members 841 Guide member sliding drive device 842 Guide member sliding drive device control section 844 Drive signal receiving means 831,931 Conveyor position change mechanism 832,932 Conveyor means position change mechanism control section 842,942 Substrate sliding means drive mechanism control section 841,941' Drive mechanism 941 Patterned surface 900 Paint scraper 930 Drive unit displacement device unit 931 Drive unit displacement device drive mechanism 932 Drive unit displacement device drive mechanism control unit 933 Memory means 933' Control Mechanism 934 Drive signal receiving means 940' Frame-shaped body 941 Guide member sliding drive device 942 Guide member sliding drive device control section 944 External drive signal information receiving means 970 Upper end vicinity 945 Rotating Axis 946 Drive Mechanism 947 Rotation drive control means 948 Bearing 949 Support beam members 950 bearing part 950 Central axis sliding movement drive device 951 Central axis sliding movement drive device control means 952 External drive signal receiving means 952 Second eccentric roller 953 other end 954 Bearing 956 Third eccentric roller 957 End 958 Swing lever part 960 Circular drive belt section 961 Lower end 962 Bearing 964 First eccentric roller 965 Base material holding jig 966 Base material receiving part 2000 Paint Treatment Equipment 2001 Drive control device

Claims

1. After applying an appropriate first coating material to at least one surface of a substrate to be coated, the coated substrate is then dried, and while the coated substrate is being moved by an appropriate conveying means, a second coating material made of a coating material that is the same as or different from the first coating material is applied to the surface of the coated substrate. While the second coating material is still wet, a pattern surface of a paint scraping member having a desired paint scraping pattern attached to a curved surface of a holder having a desired curved surface is brought into contact with the coated surface to which the second coating material has been applied, and the paint scraping member is swung within an appropriate range around the longitudinal axis of the holder of the paint scraping member to partially scrape off the wet second coating material and leave continuous linear and / or intermittent linear coatings made of the second coating material on the surface of the substrate to be coated. a paint scraping member having a surface that resembles natural wood, the paint scraping member being provided with a first coating material and a second coating material, and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material; a paint scraping member having a second coating material and a second coating material being provided on the surface of the first coating material;

2. A method for manufacturing a member having a wood-like painted surface similar to that of natural wood, as described in claim 1, characterized in that the longitudinal axis of the holding body of the paint scraping member is automatically and randomly moved and changed in a direction perpendicular to the direction of movement of the substrate to be painted, which is moved via the conveying means, i.e., along the longitudinal axial direction of the holding body of the paint scraping member, in response to random signal information generated from the random signal information generating means.

3. A method for manufacturing a member having a wood-like painted surface similar to that of natural wood, as described in claim 1, characterized in that the longitudinal axis of the holding body of the paint scraping member is automatically and randomly moved and changed along a direction parallel to the direction of movement of the substrate to be painted, which is moved via the conveying means, in response to random signal information generated from the random signal information generating means.

4. A method for manufacturing a member having a wood-like painted surface similar to natural wood, as described in claim 1, characterized in that the conveying speed of the substrate portion in the conveying direction in the conveying means is automatically and randomly changed in response to random signal information generated from the random signal information generating means.

5. A method for manufacturing a member having a wood-like painted surface similar to that of natural wood, as described in claim 1, characterized in that the central axis of the substrate portion being transported by the transport means in the transport direction is automatically and randomly displaced in a direction perpendicular to the central axis of the substrate in the transport direction (a direction parallel to the longitudinal axis of the holding body portion of the paint scraping member) in response to random signal information generated from the random signal information generating means.

6. A method for manufacturing a member having a wood-like painted surface similar to natural wood, as described in claim 1, characterized in that the pattern attached to the outer surface of the holder part of the paint scraping member and directly abutting the paint-applied surface of the substrate part to be painted is automatically and randomly selected from a group of multiple paint scraping patterns separately prepared in advance in response to random signal information generated from the random signal information generating means.

7. The method includes a first step of transporting a substrate to be coated to a desired coating process step via a desired transport means, a second step of applying a first coating material made of a synthetic resin composition for forming a first film using a first coating device while the substrate is being moved, and forming a first coating layer having a uniform thickness made of the first coating material on the surface of the substrate, and a second step of applying a first synthetic resin composition for forming a first film to the surface of the substrate while the substrate is being moved and forming the first coating layer on the surface of the first coating layer of the substrate. a third step of applying a second coating material, which is a synthetic resin composition for film formation that is the same as or different from the first coating material and is different from the first synthetic resin composition for film formation in at least one of viscosity, hue, brightness, and saturation, using a second coating device so as to form a second coating layer portion in a form including all forms of film, continuous line, intermittent line, or dot, or at least one form among said forms; and a third step of applying a second coating layer portion to the substrate to be coated on which the first and second coating layer portions have been formed and in which the second coating layer portion is in an undried state. a fourth step of moving the substrate to be coated by a suitable moving means while the substrate is in the state described above, bringing a patterned surface of a paint scraping member, which has a curved surface of a holder having a desired curved surface and a desired paint scraping pattern, into contact with the second coating layer, and swinging the paint scraping member at an arbitrary swing angle and / or an arbitrary swing speed around the longitudinal axis of the holder of the paint scraping member to at least partially scrape off the second coating layer to form a pattern of continuous linear and / or intermittent linear and / or dot-like protrusions; a fifth step of drying the coated substrate part on which the coating layer part No. 2 has been formed at a predetermined temperature while moving the coated substrate part via a desired transport means, and a sixth step of removing the dried coated substrate part; and further, at least in the second step to the fourth step, the moving speed of the transport means is controlled in cooperation with each other by an appropriate control means that is driven and controlled mechanically or electrically, and at least in the fourth step, the swing angle and / or swing speed of the holder part of the paint scraping member around the longitudinal axis of the holder part is controlled byA method for manufacturing a member having a wood-like painted surface approximating natural wood, characterized in that a scraping operation is performed while automatically and randomly changing random signal information generated from a separately provided random signal information generating means, thereby reducing the frequency with which a pattern portion identical to one of the pattern portions formed on the surface of the painted substrate portion and consisting of the protrusions made of at least the second paint material is repeatedly generated within a desired length along the longitudinal direction of the painted substrate portion.

8. A method for manufacturing a component having a wood-like painted surface similar to that of natural wood, as described in claim 1 or 7, characterized in that the first paint material applied to at least one surface of the substrate to be painted is a synthetic resin composition composed of a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component, and the wood flour component is uniformly dispersed within the synthetic resin composition.

9. 8. A method for manufacturing a member having a wood-like painted surface approximating natural wood, as described in claim 1 or 7, characterized in that the second paint material is a synthetic resin composition for forming a coating that is the same as or different from the constituent components of the first paint material, and is composed of a coating material in which at least one of the viscosity, hue, lightness, and saturation of the second paint material is different from at least one of the viscosity, hue, lightness, and saturation of the first paint material.

10. 8. A method for manufacturing a member having a wood-like painted surface approximating natural wood, as set forth in claim 7, characterized in that in the second step, the viscosity and / or at least one of the hue, brightness, and saturation of the first paint material made of the first coating-forming synthetic resin composition is adjusted to conform to desired conditions, and then the first paint material is supplied to the paint material ejection nozzle of the first application device via a paint material supply amount control means, thereby forming a first coating layer having a uniform thickness made of the first paint material on the surface of the substrate to be coated.

11. After applying an appropriate first coating material to at least one surface of a substrate to be coated, the substrate is dried, and then a second coating material, which is the same as or different from the first coating material, is applied to the surface of the coated substrate in a uniform or desired pattern while the coated substrate is being moved by an appropriate conveying means. Then, while the second coating material is still in an undried state, at least one of one or more paint scraping patterns selected from one or more types of paint scraping patterns is applied to the coating surface to which the second coating material has been applied. A device for continuously performing an operation of abutting a pattern surface of a paint scraping member having a desired paint scraping pattern attached thereto, and partially scraping off the undried second paint material while swinging the paint scraping member within an appropriate range around the longitudinal axis of the holder of the paint scraping member, thereby forming a pattern of continuous linear and / or broken linear and / or dot-like protrusions made of the second paint material on the surface of the substrate to be coated, wherein at least the holder of the paint scraping member is swinging within an appropriate range around the longitudinal axis of the holder. and / or a swing angle / swing speed changing drive means for swinging at an appropriate swing speed and a conveying speed changing drive means for driving the conveying means for moving the substrate portion at an appropriate speed are provided, and the swing angle / swing speed changing drive means and the conveying speed changing drive means are provided with a swing angle / swing speed changing drive means control section for controlling the swing angle / swing speed changing drive means and a conveying speed changing drive means control section for controlling the conveying speed changing drive means, respectively, and the swing angle / swing speed changing drive means and the conveying speed changing drive means are linked to each other, In response to random signal information generated from one or more separately provided random signal information generating means, the swing angle / swing speed changing drive means control section and / or the conveying speed changing drive means control section are individually and automatically and randomly controlled, thereby automatically and randomly driving the swing angle / swing speed changing drive means and the conveying speed changing drive means. As a result, a pattern portion identical to one pattern portion consisting of the protrusions made of at least the second paint material, which is formed on the surface of the coated substrate,A manufacturing device for a member having a wood-like painted surface similar to natural wood, characterized in that the frequency of repeated occurrence within a desired length range along the longitudinal direction of the painted substrate portion is reduced.

12. 12. The manufacturing apparatus for a member having a wood-like painted surface approximating natural wood, as described in claim 11, characterized in that, when a plurality of paint scraping patterns are attached to the curved surface of the holder portion of the paint scraping member in a state in which they can be arbitrarily selected, a pattern selection means is provided for selecting a desired one of the plurality of paint scraping patterns, and a pattern selection means control unit is provided for controlling the pattern selection operation of the pattern selection means, and the pattern selection means control unit is configured to drive the pattern selection means in response to random signal information generated from a separately provided random signal information generating means, so as to randomly select one of the plurality of scraping patterns.

13. 12. The apparatus for manufacturing a member having a wood-like painted surface similar to that of natural wood, as described in claim 11, further comprising: a holder longitudinal axis moving means for moving and displacing the longitudinal axis of the holder part of the paint scraping member along the longitudinal axis of the holder part of the paint scraping member; and a holder longitudinal axis moving means control section for controlling the drive operation of the holder longitudinal axis moving means; and the holder longitudinal axis moving means control section is configured to automatically and randomly change the longitudinal sliding displacement state of the holder part of the paint scraping member by randomly controlling at least the movement direction of the longitudinal axis of the holder part and / or the movement speed and / or movement distance of the longitudinal axis of the holder part in response to random signal information generated by a separately provided random signal information generating means.

14. 12. The apparatus for manufacturing a member having a wood-like painted surface similar to that of natural wood, as described in claim 11, further comprising: a holder-substrate-movement-direction sliding drive means for moving and displacing the longitudinal axis of the holder of the paint scraping member along a direction parallel to the direction of movement of the substrate, which is moved via the conveying means; and a holder-substrate-movement-direction sliding drive means control unit connected to the holder-substrate-movement-direction sliding drive means, wherein the holder-substrate-movement-direction sliding drive means control unit is controlled in response to random signal information generated by a separately provided random signal information generating means, thereby automatically and randomly moving and changing the longitudinal axis of the holder of the paint scraping member along a direction parallel to the direction of movement of the substrate.

15. 12. The apparatus for manufacturing a member having a wood-like painted surface approximating natural wood as set forth in claim 11, wherein the conveying means is provided with a conveying means position changing mechanism for moving and displacing the conveying means itself in a direction perpendicular to the substrate conveying direction of the conveying means and a conveying means position changing mechanism control section for controlling the drive of the conveying means position changing mechanism, or is provided with a substrate part sliding means that comes into contact with the substrate part moving on the conveying means and slides the substrate part on the conveying means in a direction perpendicular to the substrate part conveying direction on the conveying means and a substrate part sliding means control section connected to the substrate part sliding means, and the conveying means position changing mechanism control section or the substrate part sliding means control section is controlled in response to random signal information generated by separately provided random signal information generating means, thereby automatically and randomly displacing the substrate part in the direction perpendicular to the substrate conveying direction.

16. A coating treatment device that applies a desired coating treatment to at least a portion of a surface of a substrate to be coated while moving the substrate to be coated, the coating treatment device comprising a conveying mechanism that carries at least the substrate to be coated into a coating treatment section and has the function of passing the substrate to be coated successively through each treatment section described below, and a synthetic resin composition composed of a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component on the surface of the substrate to be coated that is carried in via the conveying mechanism and is continuously moving, the synthetic resin composition comprising a synthetic resin component, a wood flour component, and a cellulose nanofiber (CNF) component, the wood flour component being uniformly dispersed within the synthetic resin composition. a first coating processing section that forms a first coating layer portion having a uniform thickness by applying a first coating material made of a first coating-forming synthetic resin composition present as a first coating layer portion using a first application device; and a coating processing section that applies a first coating material made of a first coating-forming synthetic resin composition present as a first coating layer portion using a first application device to a surface of a substrate to be coated that has been transported via the transport mechanism and is continuously moving, the first coating layer portion being formed on the surface of the substrate to be coated that has been transported via the transport mechanism and is continuously moving, the first coating material being the first coating-forming synthetic resin composition being the same as or different from the first coating material that is the first coating-forming synthetic resin composition that constitutes the first coating layer portion, the first coating material being the first coating-forming synthetic resin composition a second coating processing section that applies a second coating material, which is a synthetic resin composition for forming a second coating film, having at least one of a different hue, a different lightness, and a different saturation, using a second coating device to form a second coating layer portion consisting of a film-like body, a line-like body, or a dot-like body having a desired height; and a paint scraping member pattern that is formed by attaching a desired paint scraping pattern to a curved surface of a cylinder having a cylindrical or semicircular cross section that is separately arranged on the surface of the second coating layer portion, which is in an undried state, of the substrate to be coated that has been carried in via the conveying mechanism and is continuously moving. a paint scraping processing section that brings the surface of the paint scraping member into contact with the second coating layer portion so that the surface reaches the vicinity of the bottom surface of the second coating layer portion, and oscillates the paint scraping member within an appropriate range around the longitudinal axis of the paint scraping member to partially scrape off the second coating layer portion to form a pattern of continuous and / or intermittent and / or dot-like protrusions having a predetermined height; and a baking drying processing section that dries the paint-receiving substrate portion on which the protrusion pattern has been formed and which has been discharged from the paint scraping processing section at a predetermined temperature, and the conveying mechanism section, the first coating processing section, the second coating processing section,A manufacturing device for a member having a wood-like painted surface approximating natural wood, characterized in that some or all of the main drive mechanism parts in the paint scraping processing part and the baking and drying processing part are individually connected to mutually different random signal generating devices or random operation generating mechanisms, and are configured to be individually controlled in accordance with the random signals or random operation instructions individually generated from the random signal generating devices or random operation generating mechanisms, thereby reducing the frequency with which a pattern part identical to one of the pattern parts formed on the surface of the painted base material and consisting of at least the protrusions made of the second paint material is repeatedly generated within a desired length along the longitudinal direction of the painted base material.

17. A suitable first coating material is applied to at least one surface of a suitable substrate to be coated during transportation, and then a drying treatment is performed. Then, while the coated substrate to be coated is being moved via a suitable transport means, a second coating material made of a coating material that is the same as or different from the first coating material is applied to the surface of the coated substrate to be coated. Then, while the second coating material is still wet, a pattern surface of a paint scraping member having a desired paint scraping pattern attached to the curved surface of a holding body having a desired curved surface is brought into contact with the surface of the substrate to be coated with the second coating material. and partially scraping off the undried second paint material while swinging the paint scraping member within an appropriate range around the longitudinal axis of the holder of the paint scraping member to form a pattern of continuous linear and / or intermittent linear and / or dot-like protrusions made of the second paint material on the surface of the substrate to be coated, in a continuous and manual manner without human intervention. The central axis of the paint scraping member is engaged with the paint scraping member so that the paint scraping member can freely rotate around the central axis, and on the other hand, a first eccentric roller is provided in the vicinity of the upper end of the frame-shaped frame part via a second bearing part, the rotation axis of which is provided eccentrically by an arbitrary distance from the true center of the roller described later, and the rotation axis of the first eccentric roller is connected to an appropriate drive mechanism so as to be rotated in an arbitrary direction and at an arbitrary rotation speed, and the drive mechanism is connected to an appropriate rotation drive control means so as to control the rotation drive. The dynamic control means is configured to be able to change the rotation direction and / or rotation speed of the first eccentric roller at any random timing with respect to the drive mechanism, and further, a second eccentric roller is rotatably attached to a protruding tip portion of a support beam member provided in an arbitrary spatial region between the first bearing portion and the second bearing portion via a third bearing portion, the second eccentric roller having a rotation axis eccentric at an arbitrary distance from the true center of the roller described below, and further, at a lower portion of the support beam member:a third eccentric roller having a rotation axis eccentric to the true center of a roller (described later) by an arbitrary distance, and a fourth bearing portion is provided at the other end of the swing lever portion, and the third eccentric roller has a rotation axis eccentric to the true center of the roller (described later) by an arbitrary distance, and the first eccentric roller, the second eccentric roller, and the third eccentric roller are connected by a single annular drive belt portion, and the eccentric rollers are simultaneously driven to swing the one end of the swing lever portion irregularly and randomly around the longitudinal center axis.

18. 12. The apparatus for manufacturing a member having a wood-like painted surface approximating natural wood, as described in claim 11, characterized in that the holder of the paint scraping member is composed of a drum-shaped cylinder, and a pattern portion having a plurality of grooves arranged in a desired shape is attached to the outer curved surface of the drum-shaped cylinder, and the holder is configured to be rotated in a desired direction and at a desired rotational speed around the central axis of the drum-shaped cylinder in the longitudinal direction when the pattern portion is in contact with the surface of the substrate to be painted, which includes the curved surface.

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