Urinal production method

Abstract

To produce a highly designed urinal with various decorations by using a thermoplastic resin sheet.SOLUTION: There is provided a urinal production method in which a urinal 1 having a bowl portion 12 is produced by using a thermoplastic resin sheet 2. The method includes a decorating step of decorating the resin sheet 2, and a molding step of stretching the decorated resin sheet 2 along a mold 3. The decorating step includes a first printing step of decorating the resin sheet 2 by screen printing, and a second printing step of further decorating the resin sheet 2 by inkjet printing on top of the decoration applied by screen printing.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a method for manufacturing a urinal, and more particularly to a method for manufacturing a urinal having a bowl portion using a thermoplastic resin sheet. [Background technology]

[0002] A method for molding a urinal using a resin sheet is proposed in Patent Document 1, etc. In this method, a plastic resin sheet is heated and softened, and then pressed against a mold, causing the resin sheet to deform along the mold. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-036433 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional method described above makes it possible to mold urinals with a variety of decorations by applying inkjet printing to a resin sheet in advance. However, in this case, when the resin sheet is deformed along the mold, unevenness (hereinafter referred to as "unevenness") occurs between areas with a high stretch ratio and areas with a low stretch ratio, making the resin base stand out and reducing the design quality.

[0005] The problem to be solved by the present disclosure is to manufacture a highly designed urinal that is decorated in a variety of ways using a thermoplastic resin sheet. [Means for solving the problem]

[0006] A urinal manufacturing method according to one aspect of the present disclosure is a method for manufacturing a urinal having a bowl portion using a thermoplastic resin sheet, and includes a decorating step of decorating the resin sheet and a molding step of stretching the decorated resin sheet along a mold. The decorating step includes a first printing step of decorating the resin sheet by screen printing, and a second printing step of further decorating the resin sheet by inkjet printing on top of the decoration applied by screen printing. [Effects of the Invention]

[0007] The present disclosure provides an effect of enabling highly designed urinals that are decorated in a variety of ways to be manufactured using a thermoplastic resin sheet. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a urinal according to one embodiment. [Figure 2] FIG. 2A is a plan view of a resin sheet used in the manufacturing method of the urinal, in which decoration has been applied by screen printing, and FIG. 2B is a plan view of the resin sheet of FIG. 2A, in which decoration has been further applied by inkjet printing. [Figure 3] FIG. 3 is a perspective view showing one step in the manufacturing method of the urinal. [Figure 4] FIG. 4 is a perspective view showing another step in the manufacturing method of the urinal. [Figure 5] FIG. 5 is a perspective view of a mold used to form the urinal. [Figure 6] FIG. 6 is a perspective view of a molded member molded using the resin sheet. DETAILED DESCRIPTION OF THE INVENTION

[0009] 1. One embodiment A method for manufacturing a urinal according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. However, the embodiment described below is merely one of various embodiments of the present disclosure, and various modifications can be made depending on the design, etc., as long as the object of the present disclosure can be achieved. Furthermore, each diagram showing the following embodiment is a schematic diagram, and the size and thickness of each component in the diagram, as well as their respective ratios, do not necessarily reflect the actual dimensional ratios.

[0010] (urinal) As shown in Figure 1, the urinal 1 of one embodiment is a stall urinal exclusively for urination, and has a concave bowl portion 12 used to receive urine from a user. The urinal 1 is molded using a resin sheet 2, and has a hollow structure that is open at the rear. The up-down, left-right, and front-to-back directions used in the description of the urinal 1 are based on the state in which the urinal 1 is installed. The direction in which a user is positioned relative to the urinal 1 is the front, and the bowl portion 12 is open at the front. The up-down, left-right, and front-to-back directions are perpendicular to one another.

[0011] The structure of the urinal 1 will now be described in more detail. The bowl portion 12 of the urinal 1 includes a receiving surface 121 that is long in the vertical direction, and a bottom surface 125 that connects to the lower end of the receiving surface 121. The receiving surface 121 is configured as a concave curved surface that is recessed backward. The bottom surface 125 extends forward from the lower end of the receiving surface 121. A drain outlet 13 is formed in the bottom surface 125. Urine and flushing water that hits the receiving surface 121 and flows down is collected in the bottom surface 125 and then discharged through the drain outlet 13.

[0012] In addition to the bowl portion 12, the urinal 1 has a pair of side walls 14, a front wall 16, and a top wall 18.

[0013] The pair of side walls 14 are formed to extend rearward from both left and right ends of the receiving surface 121 of the bowl portion 12. The pair of side walls 14 are positioned at a distance from each other in the left-right direction. The pair of side walls 14 are inclined so that the distance from each other in the left-right direction increases as they become more rearward.

[0014] The front wall 16 includes a portion 161 that extends upward from the front end of the bottom surface 125 of the bowl portion 12. This portion 161 extends obliquely upward and forward from the front end of the bottom surface 125 and faces the lower part of the receiving surface 121 in the front-to-rear direction.

[0015] The upper wall 18 is formed to extend rearward from the upper end of the receiving surface 121 of the bowl portion 12.

[0016] The pair of side walls 14, the front wall 16, and the top wall 18 of the urinal 1 are formed continuously in the circumferential direction surrounding the bowl portion 12. The front wall 16 is positioned so as to connect the lower ends of the pair of side walls 14. The top wall 18 is positioned so as to connect the upper ends of the pair of side walls 14.

[0017] The urinal 1 further has an undercut portion 19. The undercut portion 19 is a portion of the bowl portion 12 that is not visible when the urinal 1 is viewed from the front. The undercut portion 19 is a portion that is surrounded by the lower portion of the bowl portion 12 and a portion 161 of the front wall 16, and is open upward.

[0018] (Urinal manufacturing method) The manufacturing method of the urinal 1 of one embodiment is a method of manufacturing the urinal 1 using a molding system 9 shown in FIG. 3 and the like.

[0019] The molding system 9 is a system for manufacturing a urinal 1 having a bowl portion 12 using a thermoplastic resin sheet 2. The molding system 9 includes a mold 3, a plug mold 4, a conveying device 5, and a lifter 6.

[0020] (Mold) The mold 3 is used to shape the resin sheet 2 into the shape of the urinal 1. The mold 3 is formed on the upper surface 301 of the base 30 which has a rectangular plate shape.

[0021] The mold 3 has a shape that follows the outer shape of the urinal 1 that will ultimately be molded. The mold 3 protrudes upward from the upper surface 301 of the base 30. The upwardly protruding surface of the mold 3 forms the molding surface against which the resin sheet 2 is brought into close contact.

[0022] The mold 3 is formed to be long in one direction, and a recess 32 that is long in one direction is formed on the top surface of the mold 3. The recess 32 is a part for molding the bowl portion 12 of the urinal 1, and has a shape that corresponds to the bowl portion 12.

[0023] As shown in Figure 5 and other figures, recess 32 includes surface 321 that corresponds to receiving surface 121 of bowl portion 12, and surface 325 that corresponds to bottom surface 125 of bowl portion 12. Surface 321 is configured as a concave curved surface that is long in one direction. Surface 325 extends from one end of surface 321 in the longitudinal direction. A hole 33 that corresponds to drain outlet 13 is formed in surface 325.

[0024] Furthermore, the mold 3 has a pair of wall portions 34 corresponding to a pair of side walls 14 of the urinal 1, a wall portion 36 corresponding to the front wall 16 of the urinal 1, and a wall portion 38 corresponding to the top wall 18 of the urinal 1. The pair of walls 34 have a shape for forming the pair of side walls 14 of the urinal 1, and the wall 36 has a shape for forming the front wall 16 of the urinal 1. The wall 38 has a shape for forming the top wall 18 of the urinal 1. The pair of walls 34, the wall 36 and the wall 38 of the mold 3 are formed continuously in the circumferential direction surrounding the recess 32.

[0025] The mold 3 further has a portion 39 that corresponds to the undercut portion 19 of the urinal 1. This portion 39 is surrounded by one longitudinal end of the recess 32 of the mold 3 and a part of the wall portion 36.

[0026] 3 and other figures, the mold 3 is formed with a plurality of air intake holes 31. The air intake holes 31 are used to vacuum the resin sheet 2 into the mold 3. The molding system 9 is configured to perform vacuuming by sucking air through the air intake holes 31 using a vacuum pump or the like.

[0027] (plug type) The plug die 4 is used to bring a part of the resin sheet 2 into close contact with the mold 3. As shown in FIG. 3 and other figures, the plug die 4 is attached to the lower surface 401 of the base 40 having a rectangular plate shape.

[0028] The plug die 4 protrudes downward from the lower surface 401 of the base 40 and has an outer shape that is long in one direction. The plug die 4 is configured to press a part of the resin sheet 2 from above, thereby bringing the part of the resin sheet 2 into close contact with the recess 32 of the mold 3.

[0029] The plug mold 4 has a flat end surface 45 that constitutes one end surface in the longitudinal direction of the plug mold 4 , and a recessed portion 47 located above the end surface 45 .

[0030] End surface 45 of plug mold 4 faces horizontally and faces surface 325 of mold 3 (i.e., the portion of mold 3 that corresponds to bottom surface 125 of bowl portion 12) in the pushing process described below. Recessed portion 47 of plug mold 4 is located opposite portion 39 of mold 3 (i.e., the portion of mold 3 that corresponds to undercut portion 19 of urinal 1) in the pushing process described below.

[0031] Since the plug mold 4 has the recessed portion 47, a larger portion of the resin sheet 2 is caught in the recessed portion 47. As a result, the undercut portion 19 of the urinal 1 is prevented from being formed to be thin.

[0032] Furthermore, a positioning protrusion 48 is provided on the lower surface 401 of the base 40. The protrusion 48 is a protruding piece that protrudes downward from the lower surface 401. The plug mold 4 is positioned relative to the mold 3 by inserting the protrusion 48 into the recess 32 of the mold 3.

[0033] (Transportation device) The conveying device 5 is configured to move the mold 3 in the vertical direction. The conveying device 5 preferably includes an electric cylinder, an air cylinder, a hydraulic cylinder, an electromagnetic solenoid, or an electric motor as a driving means.

[0034] (Lifter) The lifter 6 is configured to move the plug mold 4 in the up and down direction. The lifter 6 preferably includes an electric cylinder, an air cylinder, a hydraulic cylinder, an electromagnetic solenoid, or an electric motor as a driving means.

[0035] In one embodiment of the manufacturing method for a urinal 1, after decorating the resin sheet 2 in the decorating step, the decorated resin sheet 2 is stretched along a mold 3 in the molding step. In the molding step, the above-mentioned molding system performs a heating step, a covering step, a pushing step, a suction step, and a removal step. Each step will be described below.

[0036] (Decoration process) The decorating process includes a first printing process and a second printing process that is carried out after the first printing process.

[0037] In the first printing step, decoration is applied by screen printing to the resin sheet 2. The decoration applied by screen printing is decoration that becomes the base for decoration of the resin sheet 2.

[0038] In the second printing step, a decoration is applied by inkjet printing on top of the decoration applied by screen printing to the resin sheet 2. The decoration applied by inkjet printing is a decoration that is applied as an overcoat to the base decoration, in other words, a decoration that is additionally layered on top of the base decoration.

[0039] It is preferable that the ink colors used in the screen printing and the ink colors used in the inkjet printing in the first printing step are similar colors. Similar colors are determined based on the color wheel. Similar colors include colors that are adjacent to each other on the color wheel, colors that are close to each other on the color wheel, and even the same color. This allows for a harmonious coloring between the screen printing and the inkjet printing, enhancing the sense of unity.

[0040] In the decorating step, it is preferable that the resin sheet 2 is decorated in the first printing step and the second printing step, except for the portion that comes into contact with the plug die 4 in the pushing step.

[0041] (Heating process) In the heating step, the molding system 9 uses a heater (not shown) to heat the decorated resin sheet 2. The heated resin sheet 2 softens.

[0042] (Coating process) The coating step is carried out subsequent to the heating step.

[0043] In the covering step, the resin sheet 2 heated in the heating step is placed over a mold 3 for forming the urinal 1 (see FIG. 3).

[0044] Specifically, the resin sheet 2 softened by heating is stretched and fixed between a mold 3 and a plug mold 4 positioned above it. In addition, air is blown from below to above the resin sheet 2 through an air supply path (not shown). As a result, the heated resin sheet 2 expands upward, and the resin sheet 2 is elongated.

[0045] Next, the molding system 9 lowers the lifter 6. When the lifter 6 descends, the plug mold 4 comes into contact with the upper surface of the resin sheet 2, and the plug mold 4 is pressed against the resin sheet 2 that has been softened by heating, thereby deforming the resin sheet 2. As a result, the surface of the plug mold 4 is covered with the resin sheet 2.

[0046] (Pushing process) The pressing step is carried out subsequent to the coating step.

[0047] In the pushing step, the conveying device 5 is raised. When the conveying device 5 is raised, the plug mold 4 is inserted into the recess 32 of the mold 3. The resin sheet 2 is sandwiched between the surface of the plug mold 4 and the inner surface of the recess 32.

[0048] At this time, the plug mold 4 is pressed against the resin sheet 2 from above, so that the resin sheet 2 is pressed against the inner surface of the recess 32. In the pressing step, the lower end surface 45 of the recess 47 of the plug mold 4 is positioned opposite the portion 39 of the mold 3.

[0049] (Suction process) The suction step is performed following the pushing step.

[0050] In the suction step, the resin sheet 2 is sucked onto the molding surface of the mold 3 by vacuuming. As a result, the molded member 1A shown in FIG.

[0051] Specifically, a vacuum pump (not shown) or the like is used to draw air through the multiple air intake holes 31 in the mold 3. As a result, the resin sheet 2 sandwiched between the recess 32 of the mold 3 and the plug mold 4 is tightly attached to the molding surface of the mold 3 by the negative pressure, and is shaped into the shape of the urinal 1.

[0052] (Removal process) The removal step is carried out following the suction step.

[0053] In the removal step, the lifter 6 is raised, and then the molded member 1A is removed from the mold 3. Then, the molded member 1A removed from the mold 3 is subjected to trimming or NC (Numerically Control) processing to remove unnecessary portions from the molded member 1A, thereby obtaining the urinal 1.

[0054] (Details of the resin sheet) The following describes the detailed structure of the resin sheet 2 used to form the urinal 1.

[0055] The resin sheet 2 is preferably a thermoplastic resin sheet having, for example, a rectangular outer shape, and has multiple resin layers. Of the multiple resin layers, the resin layer constituting the outermost layer (i.e., the layer that forms the front surface of the urinal 1 after molding) is preferably made of a resin material containing, for example, PMMA (polymethyl methacrylate) resin. PMMA resin is an example of a resin material that has excellent designability, stain resistance, and chemical resistance, and is also an example of a resin material that has excellent flame retardancy. Designability here includes transparency and gloss.

[0056] Of the multiple resin layers, the resin layers below the outermost resin layer are preferably formed from a resin material containing at least one of ABS (acrylonitrile butadiene styrene) resin, PP (polypropylene) resin, PE (polyethylene) resin, PET (polyethylene terephthalate) resin, and ASA (acrylonitrile styrene acrylic rubber) resin. The ABS, PP, PE, PET, and ASA resins are examples of resin materials with excellent moldability and flame retardancy. Moldability here refers to the ability to mold a desired shape without cracking, including the ability to easily stretch when heated.

[0057] (Decorative area and plain area) The resin sheet 2 forming the urinal 1 of one embodiment includes a decorative region R1 and a plain region R2 (see FIGS. 2A and 2B, etc.).

[0058] The decorative region R1 is a region of the resin sheet 2 where the surface is decorated at least by screen printing. The decorative region R1 includes a region decorated by screen printing and a region decorated by screen printing and inkjet printing. The entire decorative region R1 may be decorated by screen printing and inkjet printing.

[0059] In the decorative region R1, decoration is applied to the surface of the resin layer that constitutes the outermost layer of the resin sheet 2. The purpose of the decoration here is to impart design and functionality to the surface of the urinal 1. In particular, by adding a pattern and / or color to the surface of the urinal 1, it is possible to significantly improve the design of the urinal 1.

[0060] The plain region R2 is the region of the resin sheet 2 excluding the decorated region R1, in other words, the region of the resin sheet 2 where no decoration is applied on the surface. For example, only a part of the surface of the resin sheet 2 is decorated in the first decoration step and the second decoration step, and the decorated part is the decorated region R1 and the undecorated part is the plain region R2.

[0061] In one embodiment, the molding system 9 heats the resin sheet 2 including the decorative region R1 and the plain region R2 in the heating step.

[0062] In one embodiment of the molding system 9, in the covering step, the resin sheet 2 including the decorative region R1 and the plain region R2 is placed over the mold 3 so as to cover the top of the mold. At this time, the plug mold 4 is placed directly above the plain region R2 of the resin sheet 2, and the recessed portion 32 of the mold 3 is placed directly below the plain region R2 of the resin sheet 2. In other words, the plain region R2 of the resin sheet 2 is placed between the recessed portion 32 of the mold 3 and the plug mold 4 located directly above it. The decorative region R1 of the resin sheet 2 is placed directly above the portion of the mold 3 excluding the recessed portion 32.

[0063] The plain region R2 has an outer shape that is long in one direction, and in the covering process, the longitudinal direction of the plain region R2 coincides with the longitudinal direction of the recess 32, and also coincides with the longitudinal direction of the plug mold 4.

[0064] When the plug die 4 is lowered, the plug die 4 is pressed against the upper surface of the plain region R2 of the resin sheet 2, thereby deforming the resin sheet 2. As a result, the surface of the plug die 4 is covered with the plain region R2 of the resin sheet 2.

[0065] In one embodiment, when the mold 3 is raised in the pressing step, the plain region R2 of the resin sheet 2 is sandwiched between the surface of the plug mold 4 and the inner surface of the recess 32 of the mold 3. At this time, the plug mold 4 is pressed against the plain region R2 of the resin sheet 2 from above, and the plain region R2 of the resin sheet 2 is pressed into the recess 32 of the mold 3 by the plug mold 4.

[0066] In the suction step of one embodiment, the plain region R2 of the resin sheet 2 sandwiched between the recess 32 of the mold 3 and the plug mold 4 is sucked by vacuum suction onto the molding surface of the recess 32 of the mold 3. Also, the decorative region R1 of the resin sheet 2 is vacuum suctioned onto the molding surface of the mold 3 excluding the recess 32.

[0067] Here, significantly stretched portions may occur in the decorative region R1 of the resin sheet 2 vacuum-sucked into the mold 3. However, as described above, in the decorative region R1 of the resin sheet 2, the inkjet printing decoration is applied on top of the screen printing decoration. Therefore, even if unevenness would occur with inkjet printing alone, the screen printing decoration is present as a base, so unevenness is suppressed in the overall decoration. Here, the screen printing ink has the property of easily soaking into the resin, and unevenness is unlikely to occur even in the significantly stretched portions.

[0068] In one embodiment, in the removal process, unnecessary portions of the molded member 1A removed from the mold 3, which are included in the peripheral portion of the decorative area R1, are removed to produce a urinal 1 with enhanced design by layering two types of decoration.

[0069] The surface of the manufactured urinal 1 includes a decorated surface 101 formed by the decorated region R1 of the resin sheet 2 and a plain surface 102 formed by the plain region R2 of the resin sheet 2.

[0070] The decorative surface 101 includes the surface of the urinal 1 excluding the bowl portion 12 .

[0071] In detail, the decorated surface 101 includes the surfaces of a pair of side walls 14. The surfaces of the side walls 14 here include main surfaces 142 facing the left and right sides of the side walls 14 and end surfaces 145 facing forward. In other words, the main surfaces 142 and end surfaces 145, which are continuous with each other, of the side walls 14 are decorated, but for example, only the main surfaces 142 may be decorated. In one embodiment, inkjet printing is applied to only a portion of the main surfaces 142 of the side walls 14, but inkjet printing may also be applied to the end surfaces 145 of the side walls 14.

[0072] The decorated surface 101 includes the surface of the front wall 16. Here, the surface of the front wall 16 includes a main surface 162 of the front wall 16 facing forward and an end surface 165 facing upward. In other words, the main surface 162 and the end surface 165 of the front wall 16, which are continuous with each other, are decorated, but for example, only the main surface 162 may be decorated. In one embodiment, the main surface 162 and the end surface 165 of the front wall 16 are not inkjet printed, but inkjet printing may be applied to at least one of the main surface 162 and the end surface 165 of the front wall 16.

[0073] The decorated surface 101 includes the surface of the upper wall 18. Here, the surface of the upper wall 18 includes the main surface 182 of the upper wall 18 facing upward and the end surface 185 facing forward. In other words, the main surface 182 and the end surface 185 of the upper wall 18, which are continuous with each other, are decorated, but for example, only the main surface 182 may be decorated. In one embodiment, the main surface 182 and the end surface 185 of the upper wall 18 are not inkjet printed, but inkjet printing may be applied to at least one of the main surface 182 and the end surface 185 of the upper wall 18.

[0074] The plain surface 102 includes the surface of the bowl portion 12. In particular, the plain surface 102 includes the receiving surface 121 of the bowl portion 12 and the bottom surface 125 of the bowl portion 12. The plain surface 102 also includes the surface of the undercut portion 19.

[0075] 2. Variations The above embodiment is merely one of various embodiments of the present disclosure, and various modifications can be made to the above embodiment.

[0076] Modifications of the above embodiment will be described below. In the description of the modifications, the same components as those described in the above embodiment will be denoted by the same reference numerals and detailed description will be omitted. The various modifications listed below can be applied in appropriate combination.

[0077] In one embodiment, the decorating process is completed by screen printing followed by inkjet printing, but inkjet printing can be followed by any suitable printing method, or screen printing can be preceded by any suitable printing method.

[0078] In one embodiment, the urinal 1 is formed using a plug mold 4, but is not limited to this, and for example, the urinal 1 can also be formed without using a plug mold 4.

[0079] The decoration shown in one embodiment is merely an example, and it is possible to adopt appropriate decoration depending on the facility and environment in which the urinal 1 is installed. In this case, a variety of designs, including characters for example, can be easily realized by inkjet printing using screen printing as a base.

[0080] Various modifications can be made to other configurations of the present disclosure as long as the object of the present disclosure can be achieved.

[0081] 3. Summary As explained based on the above embodiment and modified examples, the manufacturing method for a urinal (1) of the first aspect is a method for manufacturing a urinal (1) having a bowl portion (12) using a thermoplastic resin sheet (2), and includes a decorating step of decorating the resin sheet (2) and a molding step of stretching the decorated resin sheet (2) along a mold (3). The decorating step includes a first printing step of decorating the resin sheet (2) by screen printing, and a second printing step of further decorating the screen-printed decoration by inkjet printing.

[0082] According to this embodiment, the resin sheet (2) is decorated by inkjet printing on top of the decoration applied by screen printing. Therefore, even if unevenness would occur after molding if only inkjet printing were used, the presence of the base screen-printed decoration prevents unevenness in the overall decoration. Therefore, a highly designed urinal (1) with a variety of decorations can be manufactured using a thermoplastic resin sheet (2).

[0083] In the manufacturing method for the urinal (1) of the second embodiment, in the first embodiment, the color of the ink used in the screen printing and the color of the ink used in the inkjet printing are similar to each other.

[0084] According to this embodiment, the colors are harmonized to enhance the sense of unity, and therefore a urinal (1) with a more aesthetically pleasing design can be manufactured using the thermoplastic resin sheet (2).

[0085] In the manufacturing method of the urinal (1) of the third aspect, in the first aspect, the molding step includes a pushing step of pushing the resin sheet (2) toward the mold (3) using a plug mold (4), and a suction step of vacuum-sucking the resin sheet (2) pushed into the mold (3) into the mold (3).

[0086] According to this embodiment, a highly designed urinal (1) with various decorations can be efficiently manufactured using a thermoplastic resin sheet (2), a mold (3), and a plug mold (4).

[0087] In the manufacturing method of the urinal (1) of the fourth aspect, in the third aspect, in the decorating step, decoration is applied in the first printing step and the second printing step to the resin sheet (2) except for the part that comes into contact with the plug mold (4) in the pushing step.

[0088] According to this embodiment, the decoration of the resin sheet (2) applied by screen printing and inkjet printing is effectively prevented from being transferred to the plug mold (4). [Explanation of symbols]

[0089] 1 urinal 12 Bowl section 2 Resin sheet 3. Mold 4 Plug Type

Claims

1. A method for manufacturing a urinal having a bowl portion using a thermoplastic resin sheet, comprising: a decorating step of decorating the resin sheet; a molding step of stretching the decorated resin sheet along a mold, The decoration process includes: a first printing step of decorating the resin sheet by screen printing; A second printing step of further decorating the decoration applied by screen printing using inkjet printing. How to manufacture a urinal.

2. the color of the ink used in the screen printing and the color of the ink used in the inkjet printing are similar colors; A method for manufacturing the urinal of claim 1.

3. The molding step includes: a pushing step of pushing the resin sheet toward the mold using a plug mold; A suction process of vacuum-sucking the resin sheet pressed into the mold into the mold, A method for manufacturing a urinal according to claim 1 or 2.

4. In the decorating process, decoration is applied to a portion of the resin sheet excluding a portion where the plug mold comes into contact in the pushing process in the first printing process and the second printing process. A method for manufacturing a urinal according to claim 3.

Images