JP4331416B2 - Special decorative printing metal plate manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention changes the pattern and color depending on the viewing angle, and can express a three-dimensional pattern with a three-dimensional effect.Special decorative printing metal plate manufacturing methodAbout.
[0002]
[Prior art]
There are those disclosed in Japanese Patent Nos. 2761861 and 3131717 as decorative sheets that use the principle of moire fringes due to light interference, depending on the viewing angle.
[0003]
This decorative sheet uses a lenticular plate on which a lens having a cross-sectional shape is formed. A decorative sheet using a lenticular plate is formed by forming a continuous pattern of repetitive lens-shaped lenses on the surface of a transparent sheet, printing the required pattern on the back of the sheet, and pattern portions on the front and back of the transparent sheet. By forming, a three-dimensional pattern is created on the sheet.
[0004]
A flexible decorative sheet is constructed by sticking this transparent sheet onto a flexible resin plate or plastic plate at room temperature using an adhesive, and this decorative sheet is used as a table cover, shower curtain, window decoration sheet. Used as a material for postcards and bags.
[0005]
The decorative sheet is used as a decorative body that makes a flat sheet feel a three-dimensional effect, and is known as a special decorative sheet that creates a three-dimensional pattern on a transparent sheet.
[0006]
[Problems to be solved by the invention]
Conventional decorative sheets are constructed by sticking a transparent sheet on a resin plate or plastic plate, but special decorative technology that creates this three-dimensional pattern cannot be applied to metal plates such as tin plates. Whether it was a problem.
[0007]
Especially when the transparent sheet is made of a synthetic resin material such as polyvinyl chloride or polyester, the conformability between the transparent sheet and the metal plate is poor, and the transparent sheet is in close contact with the metal plate and bonded together. It is difficult to print on the surface of the metal plate to create a three-dimensional pattern.
[0008]
In addition, how to make special decorative printing that creates a three-dimensional pattern on a metal plate can be applied stably and accurately and smoothly, and various products are manufactured from the metal plate that has been subjected to special decorative printing. Therefore, it is a problem how to form and machine a special decorative printed metal plate.
[0009]
  The present invention has been made in consideration of the above-described circumstances, and can stably and smoothly create a three-dimensional pattern having a three-dimensional effect on the surface of a metal plate.Special decorative printing metal plate manufacturing methodThe purpose is to provide.
[0010]
  Another object of the present invention is to perform printing for creating a three-dimensional pattern on the surface of the metal plate precisely and accurately, while firmly attaching the transparent resin film to the surface of the printed metal plate. , Joined togetherSpecial decorative printing metal plate manufacturing methodIs to provide.
[0011]
  Still another object of the present invention is to bond the transparent resin film to the surface of the metal plate in an inseparable manner without crushing the convex lens-like protrusions and concave lens-like depressions formed on the surface of the transparent resin film.Special decorative printing metal plate manufacturing methodIs to provide.
[0016]
[Means for Solving the Problems]
  The present inventionIn order to solve the above-described problems, a method for manufacturing a special decorative printed metal plate according to claim1And heating the metal plate to a predetermined temperature and printing on the surface with the required number of screen lines corresponding to the number of standard screen lines, and transparent covering the surface of the printed metal plate on which the printing has been performed Resin filmA transparent resin film having a continuous concavo-convex pattern comprising a number of convex lens-like protrusions or concave lens-like dents formed on the film surface with the number of standard screen lines., A sticking step of sticking the supplied transparent resin film to the surface of the printed metal plate using an adhesive or a pressure-sensitive adhesive, and the transparent resin film sticking to the surface of the printed metal plate And after-heating or after-cooling to a required temperature after being attached, in the attaching step, the transparent resin filmofBelow the temperature that does not deform the continuous uneven patternThe transparent resin filmIt is characterized by sticking.
[0017]
  Moreover, in order to solve the above-mentioned problem, the method for producing a special decorative printed metal plate according to the present invention is as follows.2As described in the above, printing on the surface of the metal plate is performed in a stepwise manner in a heated state of 140 ° C. to 210 ° C. by a plurality of plate making with different numbers of screen lines. A method of printing a predetermined pattern with different numbers of lines, or claim3As described in the above, the step of performing the printing is a method including a step of preheating the metal plate on which the printing has been performed to a required temperature.4Or a method of preheating the printed metal plate at a temperature of several tens of degrees Celsius to 210 degrees Celsius.5As described in 1., the transparent resin film is stuck on the surface of the printed metal plate at a heating temperature of several tens of degrees Celsius to 180 degrees Celsius.
[0018]
  Furthermore, in order to solve the above-described problems, a method for producing a special decorative printed metal plate according to the present invention is as follows.6As described above, when a polyester resin is used for the transparent resin film, the printing metal plate is preheated at 150 ° C. to 200 ° C., and then the printing is performed in a heating state of 150 ° C. to 180 ° C. in the attaching step. A method of attaching the transparent resin film to a metal plate using a polyester resin adhesive, or7As described above, when a vinyl chloride resin is used for the transparent resin film, after preheating the printed metal plate at about 100 ° C., the printed metal plate is heated to about 100 ° C. in the attaching step. Or a method of attaching the transparent resin film, or8As described above, after the transparent resin film is adhered and integrated on the surface of the printed metal plate, the transparent resin film is cut and the film ear pieces are removed.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
  According to the present inventionSpecial decorative printing metal plate manufacturing methodEmbodiments will be described with reference to the accompanying drawings.
[0022]
The special decorative printed metal plate according to the present invention has a cross-sectional structure shown in FIG. The special decorative printed metal plate 10 has a print layer 12 printed on the surface of the plate-like metal plate 11, and a transparent resin film 14 is bonded onto the print layer 12 via an adhesive 13 so as to be integrally bonded. It is done.
[0023]
The special decorative printed metal plate 10 has a three-dimensional effect on the surface of the metal plate 11 by a lens-like continuous pattern formed on at least the film surface of the transparent resin film 14 and a predetermined pattern printed on the metal plate 11. A decorative object that creates a 3D pattern. Special decorative printing metal plate 10 is a painting, calendar, signboard, information board (display board), pachinko machine, tray, badge, candy can, tea can, beverage can, canned can, bath can, metal container, container box, It can be applied to various metal products such as toys and electrical products such as ice holder pitchers, thermos, rice cookers, clockfaces.
[0024]
For the metal plate 11 used for the special decorative printing metal plate 10, a metal such as a tin plate, an iron plate, an aluminum plate, a stainless steel plate, a surface-treated steel plate, or a zinc plate is used depending on the application. The metal plate 11 has a plate thickness of about 0.15 mm to 0.5 mm. For example, tin cans having a thickness of about 0.2 mm to 0.4 mm are used for can containers such as confectionery cans, tea cans, canned cans, and bath cans.
[0025]
The adhesive 13 is made of a resin material such as an acrylic resin, a polyester resin, an epoxy resin, a urea resin, a melanin resin, or a cyanoacrylate resin. The adhesive 13 is selected according to the type of resin material used for the transparent resin film 14. For example, when a polyester resin film is used for the transparent resin film 14, a polyester resin is used as an adhesive, and a vinyl chloride resin film is used. When used, polyethylene resin is used as the adhesive. The thickness of the adhesive layer by the adhesive 13 is about 30 μm to 50 μm. The acrylic resin is used as an adhesive such as a double-sided tape for room temperature adhesion.
[0026]
The adhesive temperature when a polyethylene resin is used for the adhesive 13 is about 90 ° C. to 120 ° C., about 180 ° C. to 200 ° C. when a polyester resin is used, and about 160 ° C. when a nylon resin is used, When polypropylene (P / P) resin is used, it is bonded at about 80 ° C.
[0027]
Furthermore, the transparent resin film 14 should just be a transparent body which can permeate | transmit light, and may be translucently colored. Moreover, as a material, synthetic resin films such as polyethylene, polypropylene, polyester, nylon, polyurethane, polyvinyl chloride, polyvinyl nitrate, and polyacryl are used, and the film thickness is about 20 μm to 200 μm.
[0028]
On the film surface of the transparent resin film 14, a large number of convex lens-like protrusions 15 are arranged in a dot pattern by roll pressing. The convex lens-like projections 15 form a turtle-like or lattice-like concavo-convex pattern on the film surface as a predetermined pattern, and can exhibit a lens effect.
[0029]
The convex lens-shaped protrusions 15 having a predetermined pattern formed on the transparent resin film 14 are pattern-formed with a pitch arrangement having a standard number of screen lines. The number of standard screen lines is appropriately selected from 75 lines, 100 lines, 133 lines, 150 lines, 175 lines, 200 lines, and 250 lines. The number of screen lines refers to the number of black lines (halftone dots) between 1 cm or 1 inch. Instead of providing the convex lens-like protrusions 15 on the film surface of the transparent resin film 14, a concave lens-like depression may be provided to form an uneven pattern.
[0030]
The patterns 12a, 12b, and 12c of the printed layer 12 printed on the surface of the metal plate 11 differ in the visibility of the patterns 12a, 12b, and 12c depending on the positional relationship with the convex lens-shaped protrusions 15 formed on the transparent resin film 14. To.
[0031]
As shown in FIG. 2A, in the portion where the pattern 12a and the protrusion 15 completely overlap, whether the pattern 12a can be recognized from any direction, as shown in FIG. 2B, the protrusion 15 and the pattern When the overlap of the protrusions 12b is substantially shifted by the radius of the protrusion 15, the pattern 12b can be visually recognized when viewed from the X direction, the pattern 12b cannot be recognized when viewed from the Y direction, and the pattern 12b can be seen depending on the viewing direction. Or not visible.
[0032]
Furthermore, as shown in FIG. 2C, if the pattern 12c is displaced by the radius of the protrusion 15 or more, the pattern 12c is not visible from the Y direction, and the pattern 12c is difficult to see from the X direction. I can't.
[0033]
Therefore, each pattern 12a, 12b, 12c of the printing layer 12 printed on the surface of the metal plate 11 changes depending on the relative positional relationship with the convex lens-shaped protrusion 15, that is, the viewing angle.
[0034]
As shown in FIG. 3, patterns A, B, C, D, and E having different numbers of screen lines are printed on the surface of the metal plate 11. The patterns A, B, C, D, and E are printed with a predetermined pattern (unevenness pattern) of standard screen lines formed on the film surface of the transparent resin film 14 and a predetermined number of screen lines. Assuming that the standard screen line number is 100, the pattern A, B, C, D, and E have patterns A, B, C, D, and E at constant ratios of 90, 95, 100, 105, and 110, respectively. Form.
[0035]
In order to form patterns A, B, C, D, and E having different numbers of screen lines on the surface of the metal plate 11, the patterns A, B, C, D, and E are printed using different printing plates 17 respectively. The For this reason, in order to print the patterns A, B, C, D, and E on the surface of the metal plate 11, the printing plate making 17 on which each pattern is formed is used and the printing plate making 17 is aligned and printed. .
[0036]
The patterns A, B, C, D, and E formed on each printing plate making 17 may be printed with different colors, shapes, and patterns. Further, each printing plate making 17 has a pattern A, with a required number of screen lines. The plate making process is performed from the original so that B, C, D, and E can be printed. Although the patterns A, B, C, D, and E are printed at different positions on the metal plate 11, the patterns A, B, C, D, and E are actually printed so as to overlap each other.
[0037]
  For printing the patterns A, B, C, D and E on the metal plate 11, the surface of the metal plate 11 is precoated at a baking temperature of 140 ° C. to 160 ° C.18Is printed on the underlayer 18 in a heated state of 140 ° C. to 210 ° C. and baked. By this printing, the printing layer 12 is firmly bonded on the metal plate 11 and printed so as not to be peeled off. When a tin plate obtained by applying tin plating to a cold-rolled steel plate is used as the metal plate 11, the printability is excellent. Formation of the patterns A, B, C, D, and E on the metal plate 11 may be performed by irradiating the printing surface with UV (ultraviolet rays) and heating and drying.
[0038]
Then, patterns A, B, C, D, and E having different screen line numbers are printed on the metal plate 11, and a transparent resin film or adhesive is used on the surface of the printed metal plate 11. 14 is pasted and the special printing metal plate 10 of the integral joining structure shown in FIG. 1 is comprised.
[0039]
In this special decorative printed metal plate 10, a number of convex lens-like protrusions 15 are formed in a concavo-convex pattern in a predetermined pattern on the film surface of the transparent resin film 14. Since the convex lens-like projections 15 are formed in a halftone dot shape (tortoise shape, lattice shape) with a standard screen line number, the image formation positions generated by the convex lens-like projections 15 and the patterns A, B, C, D, E are The patterns A, B, C, D, and E look different depending on the lens effect.
[0040]
The positions where the image is formed by the protrusion 15 and the pattern A are different from the positions where the image is formed by the protrusion 15 and the patterns B, C, D and E, respectively, so that the patterns A, B, C, D and E are different from each other. It is recognized as being in a plane.
[0041]
Therefore, when the viewing angle is changed, the patterns A, B, C, D, and E can be seen to move while changing in different planes, and a three-dimensional pattern with a three-dimensional effect can be obtained. Can be expressed on the surface. Patterns A and B having a screen line number larger than the standard screen line number are lifted and visually recognized, and patterns D and E having a small screen line number are visually recognized by sinking to the back side.
[0042]
The special decorative printed metal plate 10 shown in FIG. 1 is printed on the surface of the metal plate 11, and the transparent resin film 14 is bonded to the surface of the printed metal plate 10 via an adhesive 13 or an adhesive. Integrated. At that time, the film thickness of the transparent resin film 14 is 20 μm to 200 μm, the layer thickness of the adhesive 13 is 20 μm to 50 μm, and the layer thickness of the printing layer 12 is several μm to 10 several μm, preferably about 10 μm. Further, since the transparent resin film 14 and the adhesive 13 are bonded together, the boundary layer is actually eliminated and does not exist.
[0043]
Further, the screen angles of the patterns A, B, C, D, and E printed on the surface of the metal plate 11 are adjusted according to the film thickness of the transparent resin film 14. Specifically, the thicker the film thickness of the transparent resin film 14, the smaller the screen angle, and the smaller the screen angle, the greater the depth between the patterns A, B, C, D, E printed on the surface of the metal plate 11. A three-dimensional effect can be obtained.
[0044]
Next, a method for manufacturing the special decorative printed metal plate 10 will be described with reference to FIG.
[0045]
  In FIG. 5, a tin plate is used as the metal plate 11 used for the special decorative printed metal plate 10, and the surface of the tin plate 11 is baked at 140 ° C. to 160 ° C. and precoated to form the base layer 18. The patterns A, B, C, D, and E are sequentially and many times aligned with the surface of the metal plate 11 on which the base layer 18 is formed using different printing plates for each color.PrintingTo print. The patterns A, B, C, D, and E printed on the metal plate 11 are printed in a heating state of 140 ° C. to 210 ° C. with different numbers of screen lines and different colors. For example, when five patterns A, B, C, D, and E are printed, the screen line number of the pattern C is matched with the standard screen line number of the convex lens-shaped protrusion 15 formed on the film surface of the transparent resin film 14. It is done.
[0046]
When the pattern C is the standard screen line number, the patterns A and B and the patterns D and E are printed with the screen line number increasing and decreasing from the standard screen line number of the pattern C at a certain ratio. In these patterns A to E, a specific character, symbol, shape, figure, pattern in which patterns are arranged, a pattern, or the like is printed.
[0047]
The metal plate 11 to be printed may be a continuous belt-like plate or a sheet. In FIG. 5, the example which printed on the metal plate 11 of the sheet material is shown.
[0048]
The printed metal plate 11 having the surface printed thereon is once deposited on the feeder 20 or directly guided to the preheating device 21 and preheated by the preheating device 21 using hot air. The preheating device 21 may directly heat the printed metal plate 11 with a heater or the like.
[0049]
The temperature preliminarily heated by the preheating device 21 is about several tens of degrees Celsius to 200 ° C., and the preheating temperature is appropriately set according to the type of the transparent resin film 14 to be tightly bonded to the surface of the printed metal plate 11. . When a polyester (PET) resin is used for the transparent resin film 14, it is preheated to about 150 ° C to 180 ° C. The polyester resin is an environmentally friendly resin, and is preheated at a temperature of 100 ° C. or lower when a polyvinyl chloride resin is used for the transparent resin film 14.
[0050]
  The printed metal plate 11 preheated by the preheating device 21 continues.Heat bondingGuided by the device 22,Heat bondingBefore being guided to the apparatus 22, the surface of the printed metal plate 11 is covered with the transparent resin film F in the form of a band directly via the adhesive 13. On the film surface of the transparent resin film F, a large number of convex lens-like protrusions 15 are formed in a predetermined pattern at a pitch interval of the number of standard screen lines, while on the film back surfaceHeat bondingEven if the adhesive is applied immediately before being guided to the apparatus 22, the adhesive is previously formed into a sheet shape, and the transparent resin film is formed on the printed metal plate 11 via the adhesive.FMay be superimposed.
[0051]
  Heat bondingIn the device 22,StickingTransparent resin film superimposed on printed metal plate 11 using rolls 24, 24FWith an adhesive,StickingTo do.StickingTemperature is transparent resin filmFWhen a polyester (PET) resin film is used, the temperature is 150 ° C. to 180 ° C., and when a polyvinyl chloride resin film is used, the temperature is 100 ° C. or less.StickingTo be harassed.
[0052]
  As the adhesive, an adhesive having good compatibility with the metal surface of the printed metal plate 11 and strong adhesion and adhesion is used, and an adhesive corresponding to the type of the metal plate 11 to be used is selected. . When a tin plate is used as the metal plate 11, the temperature is 100 ° C. or lower.Heat bondingThen, the polyester resin cannot be bonded to the printed metal plate 11.
[0053]
  Heat bondingThe conveying speed in the apparatus 22 is appropriately set according to the thickness dimension of the printed metal plate 11,StickingBy rolls 24, 24StickingThe pressure is adjusted by the thickness and size of the printed metal plate 11 and the film thickness of the transparent resin film F. Actually, when the printed metal plate 11 is a sheet material, the conveyance speed is about 15 to 100 sheets / minute.Heat bondingIs done. thisHeat bondingAs a result, the transparent resin film F is superimposed on and closely adhered to the printed metal plate 11 and is integrally bonded.
[0054]
  The transparent resin film F bonded onto the surface of the printed metal plate 11 is subsequently cut by a cutting device (not shown), and the ear piece is cut to constitute the special decorative printed metal plate 10. When manufacturing this special decorative printing metal plate 10,Heat bondingIn the apparatus 22, the heat treatment is performed at a temperature at which a predetermined pattern made of convex lens-like protrusions formed on the film surface of the transparent resin film F is not crushed.
[0055]
  Heat bondingOf the device 22StickingBy roll 24StickingThe special decorative printed metal plate 10 is then guided to the after-heat / cool device 25 and is post-heated at about several tens to 170 ° C. to enhance the bonding effect, while it is cooled to about 0 to several tens of degrees. The cooling of the transparent resin film 14 which is cooled by wind and stuck on the special decorative printed metal plate 10 is prevented.
[0056]
The special decorative printed metal plate 10 that has been post-heated or cooled by the after-heat / cool device 25 is naturally cooled while being deposited on the stacker 26. The special decorative printed metal plate 10 deposited on the stacker 26 has the configuration shown in FIG.
[0057]
This special decorative printed metal plate 10 is used as it is as a picture, calendar, signboard, guide plate (display plate), and is further subjected to secondary machining to form a can container or a container box. The final products such as electric products can be manufactured.
[0058]
FIG. 1 shows an example in which the transparent resin film 14 of the special decorative printed metal plate 10 is composed of a single layer, but the transparent resin film 14 includes a transparent resin sheet 28 and a laminated sheet 29 as shown in FIG. A laminated structure may be used.
[0059]
FIG. 6 shows a second embodiment of the special decorative printed metal plate according to the present invention.
[0060]
This special decorative printing metal plate 10A has a laminated structure in which a transparent resin film 14 is laminated with a transparent resin sheet 28 made of a synthetic resin material and a laminated sheet 29, and a dot pattern 30 is printed between the sheets 28 and 29, for example. .
[0061]
The transparent resin film 14 is formed with a turtle-shaped or grid-like uneven pattern pattern on the sheet surface of the transparent resin sheet 28 with a standard number of screen lines in which a large number of convex lens-shaped protrusions 15 are continuous. The dot pattern 30 having the same number of standard screen lines as in FIG. 5 is printed while being slightly displaced in the axial direction or the rotational direction (rotation on the sheet plane).
[0062]
And after laminating | stacking and sticking the transparent lamination sheet 29 further on the sheet | seat surface side of the transparent resin sheet 28 and comprising the transparent resin film 14 of a laminated structure, this transparent resin film 14 is made to the surface of the printed metal plate 11 The special decorative printed metal plate 10A is configured by bonding using an adhesive or a pressure-sensitive adhesive and integrating them.
[0063]
The laminated sheet 29 only needs to have a thickness that can change the relative positional relationship with the printed layer 12 formed on the surface of the metal plate 11, and the material thereof is the same as that of the transparent resin sheet 28. Any transparent resin can be used as long as it transmits light. For example, a synthetic resin sheet such as polyethylene, polypropylene, polyester, nylon, urethane, and polyvinyl chloride is used. From an environmental aspect, a polyester (PET) sheet, weather resistant An acrylic sheet is suitably used from the surface, and a soft vinyl chloride sheet is suitably used from the viewpoint of flexibility.
[0064]
  In this special decorative printing metal plate 10A, the transparent resin sheet 28 is changed depending on the viewing angle.Back sideFor example, the dot pattern 30 printed on can be visually recognized or not.
[0065]
In a portion where the dot pattern 30 cannot be visually recognized, the printed layer 12 can be visually recognized through the laminated sheet 29. Further, since the laminated sheet 29 has a predetermined thickness, the dot pattern 30 and the printed layer 12 overlap each other depending on the viewing angle. And the dot pattern 30 appears to move on the printing layer 12. That is, in the special decorative printing metal plate 10A, each dot pattern 30 changes depending on the viewing angle, and a three-dimensional pattern with a three-dimensional effect can be obtained, and special decorative printing excellent in decorativeness can be obtained.
[0066]
FIG. 7 shows a third embodiment of the special decorative printed metal plate according to the present invention.
[0067]
In the special decorative printed metal plate 10B shown in this embodiment, like the special decorative printed metal plate 10A shown in FIG. 6, the transparent resin film 14 has a laminated structure, and the transparent resin sheet 28, the laminated sheet 29, Are superimposed.
[0068]
On the sheet surface of the transparent resin sheet 28, a large number of convex lens-like protrusions 15 are provided in a predetermined pattern of a grid shape or a turtle shell shape with a standard screen line number, and the back surface of the sheet has a standard screen line number as with the sheet surface. Print with the dot pattern slightly displaced in the axial direction or rotational direction.
[0069]
Then, a transparent laminated sheet 29 is further adhered to the front surface side of the transparent resin sheet 28, and the back surface side of the laminated sheet 29 is adhered to the front surface side of the printed metal plate 11 with an adhesive, and is integrally joined. To do. In this case, a dot pattern 31 similar to the dot pattern 30 on the back surface of the sheet is printed on the front surface side of the printed metal plate 11. This dot pattern 31 has the same or different screen line number as the standard screen line number.
[0070]
In the special decorative printed metal plate 10 </ b> B shown in FIG. 7, when the viewing angle is continuously changed, the dot patterns 30 and 31 appear to change with respect to the protrusion 15 due to the lens effect. Since the relative positional relationship between the dot pattern 30 and the dot pattern 31 can be visually recognized from the relative relationship between the thickness of the laminated sheet 29 and the number of screen lines, the dot patterns 30 and 31 are more complicated and three-dimensional. It is possible to obtain a special decorative printed metal plate 10B that is excellent in decorativeness that appears as a three-dimensional pattern.
[0071]
FIG. 8 shows a fourth embodiment of the special decorative printed metal plate according to the present invention.
[0072]
The special decorative printed metal plate 10 </ b> C shown in this embodiment forms the transparent resin film 14 from a transparent resin sheet 28 and a laminated sheet 29 in a laminated structure. A large number of convex lens-like protrusions are provided on the surface of the transparent resin sheet 28 in a turtle shell shape or a lattice shape with a standard screen line number, and a transparent printing layer 32 is provided on the back surface of the sheet.
[0073]
Further, a transparent laminated sheet 29 is attached to the back side of the transparent resin sheet 28, and the transparent resin film 14 having a laminated structure is attached to the surface of the printed metal plate 11 via an adhesive 13 or an adhesive. Then, they are joined together to form a special decorative printed metal plate 10C. The surface of the metal plate 11 is a dot pattern 31 printed with the same or different screen line number as the standard screen line number of the protrusion 15.
[0074]
The special decorative printed metal plate 10C may or may not be able to visually recognize the dot pattern 31 depending on the viewing angle. However, since the dot pattern 31 can be confirmed through the transparent printing layer 32, the dot pattern 31 is visually recognized. The color of the transparent print layer 32 and the color of the dot pattern 31 are mixed in the portion where the dot pattern 31 can be seen, and the color of the transparent print layer 32 can be seen in the portion where the dot pattern 31 cannot be seen.
[0075]
Furthermore, since the laminated sheet 29 has a predetermined thickness, the overlapping position of the dot pattern 31 and the print layer 32 can be shifted depending on the viewing angle to give a three-dimensional effect, and the dot pattern 31 moves on the print layer 32. It looks like that. That is, the mixed color portion can be seen to move while changing the color of the transparent printed layer 32 depending on the viewing angle, and a special decorative printed metal plate 10C having a three-dimensional pattern with excellent decorativeness can be obtained.
[0076]
6 to 8 show an example in which the transparent resin film 14 has a two-layer laminate structure, the transparent resin film 14 may have a three-layer or more laminate structure. Even if the transparent resin film 14 has a laminate structure, when the transparent resin sheet 28 and the laminated sheet 29 are made of the same resin material, the joint surfaces are joined and integrated, so the joint surface of the laminate structure is visually recognized. It is difficult to confirm.
[0077]
Next, the application of the special decorative printed metal plate according to the present invention will be described.
[0078]
The special decorative printed metal plate 40 is manufactured as shown in FIG. 1 or FIGS. 6 to 8 through the manufacturing process shown in FIG. The special decorative printed metal plate 40 can be applied to various products by being machined and formed by press working or the like.
[0079]
An example in which the special decorative printed metal plate 40 according to the present invention is applied to a can container such as a confectionery can, a tea can, a beverage can, a canned can, and a miscellaneous goods storage can will be described.
[0080]
FIG. 9 shows an example in which the special decorative printed metal plate 40 is applied to the lid 42 of the can container 41.
[0081]
First, a special decorative printed metal plate 40 manufactured in the manufacturing process shown in FIG. 5 is prepared, and the special decorative printed metal plate 40 is punched into a required shape by a punch and a die of a press machine (not shown). Press-mold. The decorative printed metal plate 40 which has been previously formed into a required shape is further subjected to a forming process using a press forming machine for forming. In this molding process, the clearance formed between the punch (male) and the die (female) is taken into consideration the film thickness of the transparent resin film 14 in the punch and die clearance used in a normal can-making press machine. To be determined.
[0082]
The punch-to-die clearance of the press molding machine is set to a value obtained by adding 70% to 100% of the film thickness of the transparent resin film 14 to the clearance of the normal can-making press machine. By press-molding the punch and die with appropriate clearance, the transparent resin film 14 is molded without crushing the convex lens-shaped protrusions or concave lens-shaped dents formed on the film surface.
[0083]
By forming with the press machine, lid-shaped cover materials 43a and 43b for hat-shaped outer winding and dish-shaped inner winding are formed, respectively. Next, the lid 42a is formed on the outer winding lid material 43a by curling the flange portion and then winding the outer winding curling. The inner winding cover material 43b is internally wound by curling at the peripheral end portion, whereby the inner winding curling lid 42b is formed.
[0084]
Moreover, the trunk | drum 45 of the can container 41 is manufactured as shown in FIG. 10 and FIG. FIG. 10 shows an example in which the body of the can container 41 has a sleeve shape and a cylindrical shape, and FIG. 11 shows an example in which the body of the can container 41 has a rectangular tube shape and a box shape.
[0085]
FIG. 10 shows a case where the cylindrical body of the can container 41 is manufactured.
[0086]
When manufacturing the barrel portion of the can container 41, a special decorative printed metal plate 40 having a required rectangular shape and size is prepared, and four corners of the special decorative printed metal plate 40 are cut out by corner cutting. The body material 45 is formed.
[0087]
The body material 45 with the four corners cut out is subsequently formed into a cylindrical or sleeve shape by roll processing. The leading edge of the body material 45 formed by the roll process is bent by a folding process before, and a leading edge 46 is formed before, and the trailing edge is also bent after the trailing edge 47. Is formed. The former 46 and the latter 47 are combined to be crushed before being formed by the bending process, and a cylindrical or sleeve-like body material 45 is made.
[0088]
The cylindrical or sleeve-shaped body material 45 is subsequently flanged to form outer winding outer peripheral flanges 48 and 49 at both ends. Inner circumferential inner circumferential flanges 50 and 51 may be formed at both ends of the body material 45.
[0089]
The body material 45 on which the outer winding outer peripheral flanges 48 and 49 are formed is subsequently seamed by applying a bottom lid 53 to one side, and an outer winding curling is formed at the end of the body material 45. . The can container 41a is opened on one side.
[0090]
The can container 41a is filled with a product, and then an upper lid (not shown) is wound around and tightened by seaming to produce a beverage can.
[0091]
Further, in order to attach and detach the lids 42a and 42b that can be freely opened and closed to the open portion of the can container 41a, the outer curling may be formed by curling.
[0092]
FIG. 11 shows a case where a rectangular tube-shaped or box-shaped body portion of the can container 41 is manufactured.
[0093]
When manufacturing the barrel portion of the can container 41, a special decorative printed metal plate 40 having a required rectangular shape and size is prepared, and four corners of the special decorative printed metal plate 40 are cut out by corner cutting. The body material 54 is formed.
[0094]
The body material 54 is subsequently bent into a rectangular tube shape by corner folding. A leading edge 55 and a trailing edge 56 are formed on the leading edge and trailing edge of the body material 54 bent into a rectangular tube shape by bending. Before being formed by the shell folding process, it is combined with the shell 55 and the shell 56 after that to perform the squashing, and the rectangular tube-shaped or box-shaped body material 54 is made.
[0095]
Subsequently, the square cylindrical body material 54 is formed with an outer peripheral flange 57 on one side and an inner peripheral flange 58 on the other side by flange processing. A press-molded bottom lid 53 is overlaid on the outer peripheral flange 57 and integrated by winding.
[0096]
An inner peripheral flange 58 formed on the other side of the rectangular tube-shaped body material 54 is internally wound by curling, while projecting over the entire circumference by stringing to form a circumferential step 59. The body part 60 of the can container 41b is formed.
[0097]
The circumferential step portion 59 increases the mechanical and physical strength of the can container 41 on the mouth side. The circumferential step portion 59 has a stopper function for the upper lids 42a and 42b.
[0098]
The can 60 with the lid shown in FIG. 12 is manufactured by covering the trunk portion 60 of the can container 41 manufactured in the manufacturing process of FIG. 11 with the upper lid 42a of FIG. At that time, a bottom lid 53 shown in FIG. 13 is used at the bottom of the can container 41. The bottom lid 53 is formed by pressing a metal plate 61.
[0099]
Thus, the lid 42a (42b) and the body portions 52 and 60 of the can container 41 can be formed by mechanical processing such as press processing, curling processing, and bending processing of the special decorative printed metal plate 40. By this forming processing, A can container 41 (41a) having a three-dimensional pattern printed on its outer surface is manufactured. Since this can container 41 can improve the decorativeness of the outer surface, it becomes a can container with a large added value, and can give a three-dimensional feeling and a high-class feeling.
[0100]
FIG. 14 shows a schematic embodiment in which the special decorative printed metal plate 40 according to the present invention is applied to the manufacture of a thermos bottle.
[0101]
In this embodiment, the body 64 of the thermos 63 is formed of a special decorative printed metal plate 40. In order to manufacture the body 64 of the thermos 63 from the special decorative printed metal plate 40, the special decorative printed metal plate 40 is formed into a fan shape by punching with a press, and a body material 65 is formed.
[0102]
Next, the sector-shaped body material 65 is cut into four corners by corner cutting. The body material 65 that has been cut into corners is subsequently bent into a conical shape by roll processing. The body material 65 bent in a conical shape is folded in front, so that a leading edge 66 is formed at the leading edge, while a trailing edge 67 is formed at the trailing edge.
[0103]
  The former 66 and the latter 67 are combined and collapsed before being formed, and are joined together. This was folded by crushingTorso 64The upper member 68 of the thermos 63 is attached.
[0104]
  The upper member 68 of the thermos 63Torso 64After attaching toTorso 64Attach the handle 69 to the side. After installing this handle 69Torso 64The lower wrapper 70 is attached to the lower side, and the lower base 71 is attached using the lower wrapper 70 to assemble the thermos bottle 63.
[0105]
In the thermos 63, since the body part 64 is formed of the special decorative printed metal plate 40, the body part 64 has a three-dimensional pattern with a three-dimensional effect, and the added value of the thermos 63 can be further enhanced.
[0106]
9 to 14 show an example in which the special decorative printed metal plate 40 manufactured by the manufacturing procedure of FIG. 5 is applied to the can container 41 or the thermos 63, but the special decorative printed metal plate according to the present invention is shown. 40 is not limited to these, and can be widely applied to electric products such as electric rice cookers and refrigerators, and various products such as guide plates, signs, taxiways, signboards such as emergency exits, and display boards.
[0107]
In each embodiment of the present invention, an example in which a transparent resin film having a lens effect is attached to a metal plate and integrally joined is shown, but not only the metal plate but also a transparent resin film having a lens effect is closely attached to a bottle container And may be integrally joined. Also in this case, a pattern is printed on the surface of the bottle container with a required number of screen lines by screen printing or the like.
[0108]
【The invention's effect】
  According to the present inventionSpecial decorative printing metal plate manufacturing methodThen, while printing a predetermined pattern on the surface of the metal plate with the required number of screen lines, the transparent resin film is bonded to the surface of the metal plate and bonded together, and the standard formed on the film surface of the transparent resin film By utilizing the lens effect of the screen, it is possible to stably and smoothly create a three-dimensional pattern having a three-dimensional effect on the surface of the metal plate.
[0109]
  Further, according to the present inventionSpecial decorative printing metal plate manufacturing methodIn this case, printing for creating a three-dimensional pattern on the surface of the metal plate can be performed with high precision and precision, while a transparent resin film is firmly and precisely adhered to the surface of the printed metal plate and bonded together. Furthermore, the transparent resin film can be bonded to the surface of the metal plate in an inseparable manner without crushing the convex lens-shaped protrusions and concave lens-shaped dents formed on the surface of the transparent resin film, thereby effectively utilizing the lens effect. be able to.
[Brief description of the drawings]
FIG. 1 is a principle sectional view showing a first embodiment of a special decorative printed metal plate according to the present invention.
FIGS. 2A, 2B, and 2C are views for explaining lens effects of a transparent resin film provided on a special decorative printed metal plate, respectively.
FIG. 3 is a plan view of a metal plate illustrating a simplified pattern of different screen line numbers on the surface of the metal plate.
4 is a cross-sectional view of the metal plate shown in FIG.
FIG. 5 is a process chart schematically showing a manufacturing process of a special decorative printed metal plate according to the present invention.
FIG. 6 is a principle sectional view showing a second embodiment of the special decorative printed metal plate according to the present invention.
FIG. 7 is a sectional view showing in principle a third embodiment of the special decorative printed metal plate according to the present invention.
FIG. 8 is a sectional view showing in principle a fourth embodiment of the special decorative printed metal plate according to the present invention.
FIG. 9 is a diagram for explaining a procedure for manufacturing a lid of a can container manufactured from a special decorative printed metal plate according to the present invention.
FIG. 10 is a view for explaining a manufacturing procedure of a cylindrical body portion of a can container manufactured from a special decorative printed metal plate according to the present invention.
FIG. 11 is a view for explaining a manufacturing procedure of a rectangular tubular body of a can container manufactured from a special decorative printed metal plate according to the present invention.
FIG. 12 is a simplified cross-sectional view of a can container manufactured from a special decorative printed metal plate according to the present invention.
FIG. 13 is a view showing a manufacturing procedure of a bottom cover of a can container.
FIG. 14 is an explanatory view showing a procedure for manufacturing a thermos bottle using a special decorative printed metal plate according to the present invention.
[Explanation of symbols]
10, 10A, 10B, 10C, 40 Special decorative printing metal plate
11 Metal plate
12 Print layer
12a, 12b, 12c pattern
13 Adhesive (adhesive)
14 Transparent resin film
15 Convex lenticular projection
17 Printing plate making
18 Underlayer
20 Feeder
21 Preheating device
22Heat bondingapparatus
24Stickingroll
25 After Heat / Cool Device
26 Stacker
28 Transparent resin sheet
29 Laminated sheets
30,31 dot pattern
41 cans
42, 42a, 42b lid
43a, 43b Lid material
45 Torso material
46 Before
47 After that
48, 49 Outer flange
50, 51 Inner flange
52 Torso
53 Bottom cover
55 Before
56 After that
60 Torso
61 Metal plate
65 Torso material
66 Before
67 After that
68 Upper member
69 Toride
70 Lower Wappa
71 Lower base

Claims (8)

Heating the metal plate to a predetermined temperature and printing on the surface with the required number of screen lines corresponding to the number of standard screen lines;
A transparent resin film covering the surface of the printed metal plate on which the printing has been performed, the transparent resin having a continuous concavo-convex pattern consisting of a number of convex lens-like protrusions or concave lens-like depressions formed on the film surface with the number of standard screen lines Supplying a film ;
An attaching step of attaching the supplied transparent resin film to the surface of the printed metal plate using an adhesive or an adhesive; and
After the transparent resin film is adhered to the surface of the printed metal plate, it has a step of after-heating or after-cooling to a required temperature,
In the said sticking process, the said transparent resin film is stuck at the temperature which does not pattern-deform the continuous uneven | corrugated pattern of the said transparent resin film, The manufacturing method of the special decoration printing metal plate characterized by the above-mentioned . Printing on the surface of the metal plate was performed in a stepwise manner in a heated state of 140 ° C. to 210 ° C. by a plurality of plate making with different numbers of screen lines, and the number of screen lines was changed on the surface of the metal plate. The method for producing a special decorative printed metal plate according to claim 1 , wherein a predetermined pattern is printed. It said step of performing printing method special decorative printing metal plate according to claim 1 comprising the step of preheating the metal plate wherein the printing is performed on the required temperature. The method for producing a special decorative printed metal plate according to claim 3 , wherein the printed metal plate is preheated at a temperature of several tens of degrees Celsius to 210 ° C. Method for producing a special decorative printing metal plate according to claim 1, at a heating temperature of several tens of ° C. to 180 ° C. is stuck to the transparent resin film to the printing metal plate on the surface. When a polyester resin is used for the transparent resin film, the printed metal plate is preheated at 150 to 200 ° C., and then the transparent resin is applied to the printed metal plate in a heating state of 150 to 180 ° C. in the attaching step. The method for producing a special decorative printed metal plate according to claim 3 , wherein the film is adhered using a polyester resin adhesive. When a vinyl chloride resin is used for the transparent resin film, the printed metal plate is preheated at about 100 ° C., and then the transparent resin film is pasted on the printed metal plate in a heating state at about 100 ° C. in the attaching step. The method for producing a special decorative printed metal plate according to claim 3 to be worn. After integrally bonded to the transparent resin film on the surface of the printing metal plate, wherein the cutting the transparent resin film, a manufacturing method of the special decorative printing metal plate according to claim 1 for removing a film lug .

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