JP2016165902A - Printed matter and manufacturing method of printed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a printed matter in which a thickened film can be easily formed with lamination.SOLUTION: In a manufacturing method of a printed matter, a first protrusion formation step comprises: a first application step of applying a first functional fluid by scattering it on the surface of a base material; a first solidification step of forming a plurality of first protrusions by solidifying the applied first functional fluid; a second application step of applying a second functional fluid in a first virtual region surrounded by at least the plurality of first protrusions; and a second solidification step of forming a first thickened film by solidifying the applied second functional fluid, and a second protrusion formation step comprises: a third application step of applying a third functional fluid by scattering it on positions including at least portions on the first protrusions; a third solidification step of forming second protrusions by solidifying the applied third functional fluid; a fourth application step of applying a fourth functional fluid in a second virtual region surrounded by the second protrusions; and a fourth solidification step of forming a second thickened film by solidifying the fourth functional fluid applied in the second virtual region.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a printed material manufacturing method and a printed material.

  In recent years, the emboss printing method has been used to increase the added value of printed matter. In the thick embossing printing method, a part of the printed portion is raised to be extremely thick on the substrate to form an uneven shape on the surface. Thereby, a stereoscopic effect can be given and design nature can be improved more. As such a thick printing method, for example, after a release material is formed in a predetermined region on a substrate by screen printing, ink is printed in a thick pattern on a region partitioned by the release material, and the printed ink A method of removing the mold release material after solidifying is known (for example, see Patent Document 1).

JP 2002-205452 A

  However, in the above manufacturing method, in order to form the thick film, it is necessary to form the mold release material and to remove the mold release material, so that the manufacturing process becomes complicated. Furthermore, there is a problem that it is difficult to form a thick film.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  [Application Example 1] A printed matter manufacturing method according to this application example includes a first protrusion forming step of forming a first protrusion on a substrate having liquid repellency, and at least a part of the first protrusion. A second convex portion forming step of forming a second convex portion at a position including the first convex portion forming step, wherein in the first convex portion forming step, a first functional liquid containing a material of the first protrusion is formed on the surface of the base material. A first application step in which the first functional liquid applied is scattered, a first solidification step in which the applied first functional liquid is solidified to form the plurality of first protrusions, and at least the plurality of first protrusions. A second application step of applying a second functional liquid containing the material of the first thick film to the first virtual area surrounded; and solidifying the applied second functional liquid; A second solidifying step of forming a thick film, and in the second convex portion forming step, at least one on the first convex portion A third application step in which the third functional liquid containing the material of the second protrusion is scattered at a position including the second protrusion, and the applied third functional liquid is solidified to form the second protrusion. A third solidifying step, a fourth applying step of applying a fourth functional liquid containing the material of the second thick film to the second virtual region surrounded by the second protrusion, and the second applying region applied to the second virtual region And a fourth solidifying step of solidifying the fourth functional liquid to form the second thick film.

  According to this configuration, the first functional liquid is scattered and applied on the substrate, and a plurality of first protrusions are formed by solidifying the first functional liquid. And the 2nd functional liquid used as the material of the 1st thick film is apply | coated to the area | region including the 1st virtual area | region enclosed by the said some 1st projection part. At this time, the second functional liquid applied to the first virtual region surrounded by the plurality of first protrusions is caused by the effect of the liquid repellency on the surface of the base material and the regulation of wetting and spreading by the first protrusions. Retained in the region. Then, the first thick film is formed in the first virtual region by solidifying the second functional liquid. As described above, since the second functional liquid can be easily held in the first virtual region, the first convex portion including the first thick film can be easily formed. Further, the third functional liquid is scattered and applied to a region including at least a part on the first convex portion, and a plurality of second protrusions are formed by solidifying the third functional liquid. And the 4th functional liquid used as the material of the 2nd thick film is apply | coated to the area | region containing the 2nd virtual area enclosed by the said some 2nd projection part. At this time, the fourth functional liquid applied to the second virtual region surrounded by the plurality of second protrusions is restricted in wet spread by the second protrusions and is held in the second virtual region. Then, the second thick film is formed by solidifying the fourth functional liquid. Thus, since the fourth functional liquid can be easily held in the second virtual region, the second convex portion including the second thick film can be easily formed, and the second convex portion can be formed on the first convex portion. A convex part can be laminated | stacked.

  [Application Example 2] In the first application step of the printed material manufacturing method according to the application example, the first functional liquid is applied to a first predetermined position on the surface of the base material, and in the third application step, at least The third functional liquid is applied to a second predetermined position including a part on the first convex portion.

  According to this configuration, since the first functional liquid is applied to the first predetermined position and the third functional liquid is applied to the second predetermined position, the first and second thick films are efficiently formed at the desired positions. can do.

  Application Example 3 In the first application step of the printed material manufacturing method according to the application example, the first functional liquid is applied so that the arrangement density of the first functional liquid per unit area on the substrate is different. It is characterized by applying.

  According to this configuration, since the arrangement density of the first protrusions formed on the substrate is nonuniform, the arrangement density at which the first thick film is formed is also nonuniform. For this reason, it is possible to produce a printed matter having a specific design property.

  Application Example 4 In the first application step of the printed material manufacturing method according to the application example, the first functional liquid is applied so that the sizes of the first functional liquids applied in a scattered manner are different. It is characterized by that.

  According to this structure, since the dimension of the projection part formed on a base material becomes non-uniform | heterogenous, the dimension in which a 1st thick film is formed also becomes non-uniform | heterogenous. For this reason, it is possible to produce a printed matter having a specific design property.

  Application Example 5 In the third application step of the printed matter manufacturing method according to the application example, the third functional liquid is applied so that the sizes of the third functional liquids applied in a scattered manner are different. It is characterized by that.

  According to this structure, since the dimension of the projection part formed on a base material becomes non-uniform | heterogenous, the dimension in which a 2nd thick film is formed also becomes non-uniform | heterogenous. For this reason, it is possible to produce a printed matter having a specific design property.

  Application Example 6 In the printed matter manufacturing method according to the application example, the first convex portion or the second convex portion includes a color material portion.

  According to this structure, since the 1st or 2nd convex part which has a color element is formed, the printed matter which has a more characteristic design can be formed.

  Application Example 7 After the second projecting portion forming step of the printed matter manufacturing method according to the application example, a white layer covering the surface of the base material, the first projecting portion, and the second projecting portion is formed. It has the white layer formation process, It is characterized by the above-mentioned.

  According to this structure, the surface of a base material, the surface of a 1st convex part, and the 2nd convex part are covered with a white layer. For example, by applying a base material having translucency, a printed matter having a design with a sense of depth can be formed when the first and second convex portions are visually observed through the base material.

  [Application Example 8] A printed matter according to this application example is a second printed matter formed at a position including a base material, a first convex portion formed on the base material, and at least a part on the first convex portion. A first protrusion formed on the base material and a first virtual region surrounded by the plurality of first protrusions. A plurality of second protrusions formed at a position including at least a part on the first protrusion, and the plurality of second protrusions. And a second thick film formed in the enclosed second virtual region.

  According to this structure, the 2nd convex part is laminated | stacked on a 1st convex part, and the printed matter with high design property which has a three-dimensional effect can be provided.

  Application Example 9 The printed matter according to the application example is characterized in that a part of the first convex portion or the second convex portion has a color material portion.

  According to this structure, since the 1st or 2nd convex part which has a color element is formed, the printed matter which has a more characteristic design can be provided.

  Application Example 10 A printed material according to the application example described above is characterized in that it has a white layer formed so as to cover the surface of the base material, the first convex portion, and the second convex portion.

  According to this structure, the surface of a base material, the surface of a 1st convex part, and the 2nd convex part are covered with a white layer. For example, by applying a base material having translucency, a printed matter having a design with a sense of depth can be formed when the first and second convex portions are visually observed through the base material.

The structure of printed matter is shown, (a) is a sectional view, (b) is a plan view. The perspective view which shows the structure of a droplet discharge apparatus. The side view which shows the structure of a discharge head. The block diagram which shows the structure of a control part. Process drawing which shows the manufacturing method of printed matter. Process drawing which shows the manufacturing method of printed matter. The schematic diagram explaining the manufacturing method of printed matter. Sectional drawing which shows the structure of the printed matter concerning a modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each layer and each member is shown different from the actual scale so that each layer and each member can be recognized.

(Composition of printed matter)
First, the configuration of the printed material will be described. 1A and 1B show the configuration of a printed material, where FIG. 1A is a cross-sectional view and FIG. 1B is a plan view. As shown in FIG. 1, the printed material 200 includes a base material 210, a first convex part 220 formed on the base material 210, and a second part formed in a region including at least a part on the first convex part 220. The first protrusion 220 is formed in the first virtual region 240 surrounded by the plurality of first protrusions 221 formed on the base 210 and the plurality of first protrusions 221. The second convex portion 250 includes a plurality of second protrusions 251 formed at positions including at least a part on the first convex portion, and a plurality of second protrusions 251. And a second thick film 252 formed in the second virtual region 260 surrounded by the protrusion 251.

  The substrate 210 is, for example, a plastic film (polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl alcohol (PVA), etc.), various printing papers, Corrugated cardboard, metal member (aluminum foil, copper foil, etc.). Further, a coating layer such as a receiving layer may be formed on the surface 210a of these base materials 210, for example. Furthermore, what laminated | stacked various plastic films may be used, and the vapor deposition film may be formed in the surface of the metal member.

  The 1st projection part 221 solidifies various functional fluids. Specifically, an ultraviolet curable ink or a thermosetting ink applied on the substrate 210 is solidified. As the ultraviolet curable ink, acrylic, epoxy, silicone or the like can be used as appropriate. For the thermosetting ink, acrylic, epoxy, silicone, etc. can be used as appropriate. Note that the same material as that of the first protrusion 221 can be applied to the second protrusion 251.

  The first thick film 222 is made of the same material as that of the first protrusion 221. Specifically, UV-curable inks such as acrylic, epoxy, and silicone, and thermosetting inks such as acrylic, epoxy, and silicone can be used as appropriate. And it forms by solidifying what applied these inks on substrate 210. The second thick film 252 can be made of the same material as the first thick film 222.

  As shown in FIG. 1, a recess 230 is formed between the first and second protrusions 220 and 250 and the other first and second protrusions 220 and 250. Thereby, the printed matter 200 which has a three-dimensional effect by formation of an uneven | corrugated | grooved part is formed. Furthermore, in this embodiment, since the 2nd convex part 250 is formed on the 1st convex part 220, since it becomes thick in the thickness direction of the 1st and 2nd thick film 222,252, further, a three-dimensional effect is given. Can be represented.

(Method for producing printed matter)
Next, a method for producing a printed material will be described. First, prior to the description of the printed material manufacturing method, a configuration example of a droplet discharge device used in the printed material manufacturing method will be described. In the present embodiment, an apparatus configuration when using ultraviolet curable ink as a functional liquid will be described.

  First, the overall configuration of the droplet discharge device will be described. FIG. 2 is a perspective view showing the configuration of the droplet discharge device. As shown in FIG. 2, the droplet discharge device 1 includes a base 2 formed in a rectangular parallelepiped shape. In the present embodiment, the longitudinal direction of the base 2 is the Y direction, and the direction orthogonal to the Y direction is the X direction.

  On the upper surface 2a of the base 2, a pair of guide rails 3a and 3b extending in the Y direction are provided so as to protrude over the entire width in the Y direction. On the upper side of the base 2, a stage 4 provided with scanning means (not shown) corresponding to the pair of guide rails 3a and 3b is attached. The stage 4 is for placing the substrate 210 thereon. The scanning means is, for example, a linear motion mechanism, and the linear motion mechanism includes, for example, a screw shaft (drive shaft) extending in the Y direction along the guide rails 3a and 3b, and a ball nut screwed to the screw shaft. The screw type linear motion mechanism has a driving shaft connected to a Y-axis motor (not shown) that receives a predetermined pulse signal and rotates forward and backward in steps. When a drive signal corresponding to a predetermined number of steps is input to the Y-axis motor, the Y-axis motor rotates forward or reversely, and the stage 4 corresponds to the same number of steps along the Y-axis direction. The robot moves forward or backward (scans in the Y-axis direction) at a predetermined speed.

  Further, a stage position detection device 5 is arranged on the upper surface 2a of the base 2 in parallel with the guide rails 3a and 3b so that the position of the stage 4 can be measured.

  A mounting surface 6 is formed on the upper surface of the stage 4, and a suction-type member chuck mechanism (not shown) is provided on the mounting surface 6. When the base 210 is placed on the placement surface 6, the base 210 is positioned and fixed at a predetermined position on the placement surface 6 by a member chuck mechanism.

  A pair of support bases 8a and 8b are erected on both sides of the base 2 in the X direction, and a guide member 9 extending in the X direction is installed on the pair of support bases 8a and 8b. The guide member 9 is formed longer than the width of the stage 4 in the X direction, and is arranged so that one end of the guide member 9 projects toward the support base 8a. On the upper side of the guide member 9, a storage tank 10 that stores the functional liquid to be discharged is provided. On the other hand, a guide rail 11 extending in the X direction is provided below the guide member 9 so as to protrude over the entire width in the X direction.

  A carriage 12 is disposed so as to be movable along the guide rail 11. The carriage 12 is formed in a substantially rectangular parallelepiped shape. The linear movement mechanism of the carriage 12 is, for example, a screw type linear movement mechanism including a screw shaft (drive shaft) extending in the X-axis direction along the guide rail 11 and a ball nut screwed to the screw shaft. The drive shaft is connected to an X-axis motor (not shown) that receives a predetermined pulse signal and rotates forward and backward in steps. When a drive signal corresponding to a predetermined number of steps is input to the X-axis motor, the X-axis motor rotates forward or reverse, and the carriage 12 moves forward or backward along the X direction by the amount corresponding to the same number of steps. Move (scan in the X-axis direction). A carriage position detection device 13 is disposed between the guide member 9 and the carriage 12 so that the position of the carriage 12 can be measured. An ejection head 14 is installed on the lower surface of the carriage 12 (the surface on the stage 4 side).

  In addition, a first ultraviolet irradiation unit 50a and a second ultraviolet irradiation unit 50b are arranged at both ends of the carriage 12 in the X-axis direction. A plurality of ultraviolet light sources are installed in each of the first and second ultraviolet irradiation units 50a and 50b. Then, the first and second ultraviolet irradiation units 50a and 50b are driven to emit ultraviolet rays from the ultraviolet light source. The ultraviolet light source can be applied as appropriate in addition to the LED, such as a high-pressure mercury lamp or a metal halide lamp.

  A maintenance base 15 is disposed on one side of the base 2 (the direction opposite to the X-axis direction in the drawing). On the upper surface 15a of the maintenance base 15, a pair of guide rails 16a and 16b extending in the Y-axis direction are provided so as to protrude over the entire width in the Y-direction. On the upper side of the maintenance base 15, a maintenance stage 17 constituting a moving means provided with a linear motion mechanism (not shown) corresponding to the pair of guide rails 16a and 16b is attached. The linear movement mechanism of the maintenance stage 17 is, for example, the linear movement mechanism similar to that of the stage 4 and moves forward or backward along the Y-axis direction.

  On the maintenance stage 17, a head maintenance unit 21 that performs maintenance of the ejection head 14 is provided. The head maintenance unit 21 includes a flushing unit 18, a capping unit 19, and a wiping unit 20.

  The flushing unit 18 is a device that receives liquid droplets ejected from the ejection head 14 when the flow path in the ejection head 14 is washed. When the functional liquid in the discharge head 14 is hardened or solid matter is mixed, the state of the functional liquid is adjusted or the solid matter is removed by discharging droplets (flushing operation) from the discharge head 14. To do. The flushing unit 18 has a function of collecting discharged droplets.

  The capping unit 19 is a device that mainly covers the ejection head 14 and sucks the functional liquid in the ejection head 14. The droplets ejected from the ejection head 14 may have volatility, and when the solvent of the functional liquid present in the ejection head 14 volatilizes from the nozzle, the viscosity of the functional liquid may change and the nozzle may be clogged. The capping unit 19 is configured to prevent the nozzles from being clogged by covering the ejection head 14. Further, in the state where the discharge head 14 is covered, a negative pressure is applied to the cover and the functional liquid in the discharge head 14 is sucked to remove bubbles, foreign matters, and the like in the discharge head 14.

  The wiping unit 20 is a device that wipes the nozzle plate on which the nozzles of the ejection head 14 are arranged. The nozzle plate is a member disposed on the surface of the ejection head 14 that faces the substrate 210. When droplets adhere to the nozzle plate, the droplets adhering to the nozzle plate come into contact with the substrate 210, and the droplets may adhere to an unscheduled location on the substrate 210. is there. The wiping unit 20 can prevent droplets from adhering to an unplanned location by wiping the nozzle plate.

  A weight measuring device 22 is arranged between the maintenance base 15 and the base 2. Two electronic balances are installed in the weight measuring device 22, and a tray is arranged on each electronic balance. The liquid droplets are discharged from the discharge head 14 to the tray, and the electronic balance measures the weight of the liquid droplets. The tray is provided with a sponge-like absorber so that the ejected liquid droplets bounce and do not come out of the tray. The electronic balance measures the weight of the saucer before and after the ejection head 14 ejects droplets, and measures the difference in the weight of the saucer before and after ejection.

  When the carriage 12 moves in the X-axis direction along the guide rail 11, the ejection head 14 can move to a location facing the head maintenance unit 21, the weight measuring device 22, and the base material 210. Yes.

  Next, the configuration of the ejection head will be described. FIG. 3 is a cross-sectional view showing the configuration of the ejection head. As shown in FIG. 3, the ejection head 14 includes a nozzle plate 30, and a nozzle hole 31 is formed in the nozzle plate 30. A cavity 32 communicating with the nozzle hole 31 is formed at a position above the nozzle plate 30 and facing the nozzle hole 31. The functional liquid 33 stored in the storage tank 10 is supplied to the cavity 32 of the ejection head 14.

  Above the cavity 32, a vibration plate 34 that vibrates in the vertical direction (Z direction: longitudinal vibration) and expands and contracts the volume in the cavity 32, and a pressurizing unit that expands and contracts in the vertical direction to vibrate the vibration plate 34. The piezoelectric element 35 is disposed. The piezoelectric element 35 expands and contracts in the vertical direction to vibrate the diaphragm 34, and the diaphragm 34 pressurizes the cavity 32 by enlarging and reducing the volume in the cavity 32. Thereby, the pressure in the cavity 32 varies, and the functional liquid 33 supplied into the cavity 32 is discharged through the nozzle hole 31.

  When the ejection head 14 receives a drive signal for controlling and driving the piezoelectric element 35, the piezoelectric element 35 expands and the diaphragm 34 reduces the volume in the cavity 32. As a result, the functional liquid 33 corresponding to the reduced volume is discharged as droplets 36 from the nozzle holes 31 of the discharge head 14. In the present embodiment, the longitudinal vibration type piezoelectric element 35 is used as the pressurizing means. However, the present invention is not particularly limited to this, for example, a flexural deformation in which a lower electrode, a piezoelectric layer, and an upper electrode are stacked. A type of piezoelectric element may be used. Further, as the pressure generating means, a so-called electrostatic actuator that generates static electricity between the diaphragm and the electrode, deforms the diaphragm by electrostatic force, and discharges a droplet from the nozzle may be used. Furthermore, the discharge head which has the structure which generates a bubble in a nozzle using a heat generating body, and discharges a functional liquid as a droplet with the bubble may be sufficient.

  Next, the configuration of the control unit will be described. FIG. 4 is a block diagram illustrating a configuration of a control unit of the droplet discharge device. As shown in FIG. 4, the droplet discharge device 1 includes a control unit 38. The control unit 38 includes a command unit 130 and a drive unit 140. The command unit 130 includes a CPU 132, ROM 133 and RAM 134 as storage means, and an input / output interface 131. The CPU 132 performs processing based on data in the ROM 133 and RAM 134. The control signal is output to the driving unit 140 via the input / output interface 131. For example, the CPU 132 performs control for ejecting the functional liquid 33 as droplets 36 to a predetermined position on the surface 210 a of the base 210 in accordance with program software stored in the ROM 133.

  The ROM 133 or the RAM 134 stores a plurality of flushing conditions according to the amount of ultraviolet irradiation light. Then, the CPU 132 selects a flushing condition according to the amount of ultraviolet irradiation light, and performs control for causing the flushing operation to be performed under the selected flushing condition.

  The drive unit 140 includes a head driver 141, a motor driver 142, a stage position detection driver 143, a carriage position detection driver 144, a maintenance driver 145, a first ultraviolet irradiation driver 147, a second ultraviolet irradiation driver 148, and the like. The motor driver 142 controls the X-axis motor and the Y-axis motor according to the control signal from the command unit 130, and controls the movement of the substrate 210 and the ejection head 14. The maintenance driver 145 controls each of the flushing unit 18, the capping unit 19, and the wiping unit 20. The head driver 141 controls the ejection head 14 and controls movement to a predetermined position on the substrate 210 and movement to the head maintenance unit 21 in synchronization with the control of the motor driver 142. The stage position detection driver 143 controls the stage position detection device 5, and the carriage position detection driver 144 controls the carriage position detection device 13.

  Next, a method for producing a printed material will be described. 5 and 6 are process diagrams showing a method for producing a printed matter, and FIG. 7 is a schematic diagram for explaining a method for producing the printed matter. In the printed matter manufacturing method, the first convex portion forming step of forming the first convex portion on the substrate having liquid repellency, and the second convex portion is formed at a position including at least a part on the first convex portion. A first projecting step in which a first functional liquid containing the material of the first protrusion is scattered on the surface of the base material and applied in the first projecting portion forming step. A first solidifying step of solidifying the first functional liquid formed to form a plurality of first protrusions, and a first virtual region surrounded by at least the plurality of first protrusions including a material of the first thick film A second application step of applying the second functional liquid; and a second solidification step of solidifying the applied second functional liquid to form a first thick film in the first virtual region, In the projecting portion forming step, a third coating is applied in which the third functional liquid containing the material of the second projecting portion is scattered at a position including at least a part on the first projecting portion. Including a step, a third solidifying step of solidifying the applied third functional liquid to form a second protrusion, and a second thick film material in a second virtual region surrounded by the second protrusion A fourth application step of applying the fourth functional liquid; and a fourth solidification step of solidifying the fourth functional liquid applied to the second virtual region to form a second thick film. This will be specifically described below.

  First, a 1st convex part formation process is demonstrated. As shown to Fig.5 (a), the base material 210 is prepared. The base material 210 can be applied by appropriately selecting a material such as the plastic film described above. In addition, the surface 210a of the selected base material 210 needs to have liquid repellency. In this case, for example, the static contact angle is preferably set to 20 ° to 70 °, and more preferably 30 ° to 50 °. As for the dynamic contact angle, the difference between the advancing contact angle and the receding contact angle is preferably 30 ° or less. By setting in this way, the first protrusion 221 and the first thick film 222 can be formed as desired. For this reason, when the state of the surface 210a of the prepared base 210 is less than the above-mentioned liquid repellent effect, the surface 210a of the base 210 is subjected to a liquid repellent treatment. In this case, for example, by using the droplet discharge device 1, an epoxy ultraviolet curable ink is applied to the entire surface 210 a of the substrate 210. The applied ultraviolet curable ink is irradiated with ultraviolet rays from the first and second ultraviolet irradiation units 50a and 50b to cure the ultraviolet curable ink. In this manner, a base film having liquid repellency may be formed on the surface 210a of the base 210.

  Next, in the first application step, as shown in FIG. 5B, the material of the first protrusion is included from the ejection head 14 of the droplet ejection apparatus 1 toward the surface 210a of the substrate 210 having liquid repellency. The first functional liquid is ejected as droplets 36, and the first functional liquid is scattered on the surface 210a of the substrate 210 and applied. In the present embodiment, an epoxy ultraviolet curable ink as the first functional liquid is applied. In this case, the ultraviolet curable ink is applied to the first predetermined position defined on the surface 210a of the substrate 210. In the first application step, as shown in FIG. 7A, the arrangement of the ultraviolet curable ink 221a per unit area on the surface 210a of the substrate 210 of the ultraviolet curable ink 221a landed on the substrate 210. An ultraviolet curable ink is applied so that the densities are different.

  In the present embodiment, in the first application step, as shown in FIG. 7B, the ultraviolet curable ink is applied so that the sizes of the scattered ultraviolet curable inks 221a are different. . In the first application step in the present embodiment, the ultraviolet curable ink is applied a plurality of times. As a result, the ultraviolet curable ink 221a landed first and the ultraviolet curable ink ejected later are arbitrarily combined to form different ultraviolet curable inks 221a.

  Next, in the first solidification step, the applied ultraviolet curable ink 221a is solidified. Thereby, as shown in FIG.5 (c), the some 1st projection part 221 is formed. As a method of solidifying the ultraviolet curable ink 221a, the droplet discharging device 1 is used to irradiate the applied ultraviolet curable ink 221a with ultraviolet rays from the first and second ultraviolet irradiation units 50a and 50b. Thereby, the ultraviolet curable ink 221a can be cured.

  Next, in the second application step, as shown in FIG. 5D and FIG. 7C, the second virtual region 240 containing the material of the thick film is included in the first virtual region 240 surrounded by at least the plurality of first protrusions 221. Apply functional fluid. In the present embodiment, an epoxy-based ultraviolet curable ink as the second functional liquid is used to apply to almost the entire surface 210a of the base 210 including the first virtual region 240 surrounded by the plurality of first protrusions 221. To do. At this time, the ultraviolet curable ink 222a applied to the first virtual region 240 surrounded by the plurality of first protrusions 221 has a liquid repellent effect and a plurality of liquid repellent effects applied to the surface 210a of the substrate 210. It is held by the effect of restricting wetting and spreading by the first protrusion 221. Further, the ultraviolet curable ink 222a applied to other than the first virtual region 240 is absorbed by the ultraviolet curable ink held in the first virtual region 240 due to the liquid repellency effect of the surface 210a of the substrate 210. The As a result, the ultraviolet curable ink 222 a that becomes a thick film stays in the first virtual region 240.

  In the second application step, the ultraviolet curable ink may be applied a plurality of times in order to obtain a thick film having a desired dimension. By increasing the number of times of application, the amount of the ultraviolet curable ink 222a that stays in the first virtual region 240 increases. Thereby, the increase in the thickness direction of the ultraviolet curable ink 222a and the area of the ultraviolet curable ink 222a in plan view can be increased.

  Next, in the second solidification step, the applied ultraviolet curable ink 222a is solidified. As a result, as shown in FIG. 5E, the first thick film 222 is formed in the plurality of first virtual regions 240. As a method of solidifying the ultraviolet curable ink 222a, the droplet discharge device 1 is used to irradiate the applied ultraviolet curable ink 222a with ultraviolet rays from the first and second ultraviolet irradiation units 50a and 50b. Thereby, the ultraviolet curable ink 222a can be cured.

  By passing through the above process, the 1st convex part 220 is formed with the some 1st projection part 221 and the 1st thick film 222. FIG.

  Next, a 2nd convex part formation process is demonstrated. In the third application step, as shown in FIG. 6 (f), the material of the second protrusion is included from the discharge head 14 of the droplet discharge device 1 toward a position including at least a part on the first protrusion 220. The third functional liquid is discharged as droplets 36. In the present embodiment, an epoxy-based ultraviolet curable ink as the third functional liquid is applied as droplets 36 on the first convex portion 220. In this case, the ultraviolet curable ink is applied to the second predetermined position defined on the first convex portion 220. In the present embodiment, since the first convex portion 220 is formed of an epoxy-based ultraviolet curable ink, the surface of the first convex portion 220 has liquid repellency due to its characteristics. For this reason, it becomes possible to apply the epoxy-based ultraviolet curable ink as the third functional liquid to the first convex portion 220 in a scattered manner.

  In the present embodiment, in the third application step, the ultraviolet curable ink is applied so that the sizes of the ultraviolet curable inks 251a applied in a scattered manner are different. In the third application step in the present embodiment, the ultraviolet curable ink is applied a plurality of times. As a result, the ultraviolet curable ink 251a landed first and the ultraviolet curable ink discharged later are arbitrarily combined to form different ultraviolet curable inks 251a.

  Next, in the third solidifying step, the applied ultraviolet curable ink 251a is solidified. Thereby, as shown in FIG.6 (g), several 2nd projection part 251 is formed. As a method for solidifying the ultraviolet curable ink 251a, the droplet discharge device 1 is used to irradiate the applied ultraviolet curable ink 251a with ultraviolet rays from the first and second ultraviolet irradiation units 50a and 50b. Thereby, the ultraviolet curable ink 251a can be cured.

  Next, in the fourth application step, as shown in FIG. 6H, a fourth functional liquid containing a thick film material is applied to the second virtual region 260 surrounded by the plurality of second protrusions 251. In this embodiment, an epoxy-based ultraviolet curable ink as the fourth functional liquid is applied to the second virtual region 260 surrounded by the plurality of second protrusions 251. At this time, the ultraviolet curable ink 252a applied to the second virtual region 260 surrounded by the plurality of second protrusions 251 causes the liquid repellency effect on the surface of the first protrusion 220 and the plurality of second protrusions 251. It is retained by the effect of regulating the spread of wetting.

  In the fourth application step, the ultraviolet curable ink may be applied a plurality of times in order to obtain a thick film having a desired dimension. By increasing the number of times of application, the amount of the ultraviolet curable ink 252a that stays in the second virtual region 260 increases. Thereby, the increase in the thickness direction of the ultraviolet curable ink 252a and the area of the ultraviolet curable ink 252a in plan view can be increased.

  Next, in the fourth solidifying step, the applied ultraviolet curable ink 252a is solidified. Thereby, as shown in FIG. 6I, the second thick film 252 is formed in the second virtual region 260. As a method of solidifying the ultraviolet curable ink 252a, the droplet discharge device 1 is used to irradiate the applied ultraviolet curable ink 252a with ultraviolet rays from the first and second ultraviolet irradiation units 50a and 50b. Thereby, the ultraviolet curable ink 252a can be cured.

  By passing through the above process, the printed material 200 in which the 2nd convex part 250 was formed on the 1st convex part 220 is formed.

  As mentioned above, according to said embodiment, there exist the following effects.

  (1) The ultraviolet curable ink 221a is scattered and applied on the substrate 210, and a plurality of first protrusions 221 are formed by solidifying the ink. Then, an ultraviolet curable ink that is a material of the first thick film 222 is applied to a region including the first virtual region 240 surrounded by the plurality of first protrusions 221. At this time, the ultraviolet curable ink 222a applied to the first virtual region 240 surrounded by the plurality of first protrusions 221 has a liquid repellent effect on the surface 210a of the substrate 210 and wet spread by the first protrusions 221. Is retained in the first virtual area 240 by the regulation of the above. Then, the first thick film 222 is formed by solidifying the ultraviolet curable ink 222a. Thus, since the ultraviolet curable ink 222a can be easily held in the first virtual region 240, the first convex portion 220 including the first thick film 222 can be easily formed. Further, the ultraviolet curable ink 251a is scattered and applied to a region including at least a part on the first convex portion 220, and a plurality of second protrusions 251 are formed by solidifying this. Then, an ultraviolet curable ink serving as a material for the second thick film 252 is applied to a region including the second virtual region 260 surrounded by the plurality of second protrusions 251. At this time, the ultraviolet curable ink 252a applied in the second virtual region 260 surrounded by the plurality of second protrusions 251 is held in the second virtual region 260 by the restriction of wetting and spreading by the second protrusions 251. Is done. Then, the second thick film 252 is formed by solidifying the ultraviolet curable ink 252a. As described above, since the ultraviolet curable ink 252a can be easily held in the second virtual region 260, the second convex portion 250 including the second thick film 252 can be easily formed, and the first convex portion. The second convex part 250 can be laminated on 220.

  (2) The material for the surface treatment of the surface 210a of the substrate 210, the material for the first and second protrusions 221, 251 and the material for the first and second thick films 222, 252 are the same. Thereby, management of the material in manufacture of printed matter 200 can be simplified.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. A modification will be described below.

  (Modification 1) In the above embodiment, the ultraviolet curable ink is applied so that the arrangement density of the ultraviolet curable ink per unit area of the surface 210a of the substrate 210 is different. Thereby, although the arrangement density of the 1st projection part 221 per unit area of surface 210a of substrate 210 was varied, it is not limited to this. For example, the ultraviolet curable ink may be applied so that the arrangement density of the ultraviolet curable ink per unit area of the surface 210a of the substrate 210 is substantially the same. Thereby, the arrangement density of the first protrusions 221 per unit area of the surface 210a of the substrate 210 may be formed substantially the same. Moreover, in the said embodiment, although the 1st convex part 220 containing the 1st thick film 222 of irregular shape in planar view was formed, it is not limited to this. For example, you may form the 1st convex part 220 including the 1st thick film 222 which has the substantially same shape (has regularity). Moreover, you may form the 2nd convex part 250 containing the 2nd thick buildup film | membrane 252 which has substantially the same shape (it has regularity). If it does in this way, the printed matter which has the regularity, for example, which has the design which represented the grid | lattice form can be shape | molded.

  (Modification 2) In the above embodiment, each first protrusion 221 forms the first virtual region 240, but the present invention is not limited to this. For example, some of the formed first protrusions 221 may not contribute to the formation of the first virtual region 240. In other words, the density of the first protrusions 221 in the first protrusions 220 only needs to be higher than the density of the first protrusions 221 in the recesses 230. Even if it does in this way, the printed matter 200 which has the 1st convex part 220 and the recessed part 230 can be manufactured, without impairing external appearance quality.

  (Modification 3) In the above embodiment, the colors of the first and second convex portions 220 and 250 are not particularly limited. However, a part of the first convex portion 220 or the second convex portion 250 has a color material portion. You may do it. In this case, an ultraviolet curable ink containing a color material may be applied as the functional liquid used in the first convex portion forming step and the second convex portion forming step. In this way, it is possible to provide a printed matter having a more characteristic design.

  (Modification 4) In the said embodiment, although the 1st convex part 220 was formed on the base material 210 and the 2nd convex part 250 was formed on the 1st convex part 220, it is not limited to this. FIG. 8 is a cross-sectional view illustrating a configuration of a printed material according to a modification. As shown in FIG. 8A, the printed product 300 may be configured by forming the third convex portion 270 on the second convex portion 250 formed on the first convex portion 220. Further, another convex portion may be formed on the third convex portion 270. Further, as shown in FIG. 8B, the printed matter 400 forms a second protrusion 251 on a part of the first protrusion 220 and the surface 210 a of the substrate 210, and is surrounded by the second protrusion 251. The second thick film 252 may be formed in the second virtual region 260. Further, a third protrusion 271 is formed on a part on the first protrusion 220 and a part on the second protrusion 250, and a third thickness is formed in the third virtual region 290 surrounded by the third protrusion 271. The structure in which the film 272 is formed may be used. Even if it does in this way, the same effect as the above can be acquired.

  (Modification 5) Moreover, as shown in FIG.8 (c), the printing part 500 may be provided with the white layer 280 which covers the base material 210, the 1st convex part 220, and the 2nd convex part 250. FIG. In this case, a white layer forming step for forming a white layer 280 that covers the surface 210a, the first convex portion 220, and the second convex portion 250 of the substrate 210 may be performed after the second convex portion forming step. Note that in this case, the base material 210 is preferably formed using a light-transmitting material. If it does in this way, when the 1st and 2nd convex part 220,250 is visually observed through the base material 210, the printed matter which has a design with a depth can be formed.

  DESCRIPTION OF SYMBOLS 1 ... Droplet discharge apparatus, 14 ... Discharge head, 33 ... Functional liquid, 36 ... Droplet, 200, 300, 400, 500 ... Printed matter, 210 ... Base material, 210a ... Surface of base material, 220 ... 1st convex part , 250 ... 2nd convex part, 221 ... 1st protrusion part, 221a ... UV curable ink, 222 ... 1st thick film, 222a ... UV curable ink, 230 ... recessed part, 240 ... 1st virtual area, 250 ... 2nd convex part, 251 ... 2nd protrusion part, 251a ... UV curable ink, 252 ... 2nd thick film, 252a ... UV curable ink, 260 ... 2nd virtual region, 270 ... 3rd convex part, 271 ... Third protrusion, 272, third thick film, 280, white layer.

Claims (10)

A first protrusion forming step of forming the first protrusion on the substrate having liquid repellency;
A second protrusion forming step of forming a second protrusion at a position including at least a part on the first protrusion, and
In the first protrusion forming step,
A first application step of applying the first functional liquid containing the material of the first protrusion on the surface of the base material,
A first solidifying step of solidifying the applied first functional liquid to form a plurality of the first protrusions;
A second application step of applying a second functional liquid containing a material for the first thick film to a first virtual region surrounded by at least the plurality of first protrusions;
A second solidifying step of solidifying the applied second functional liquid to form the first thick film in the first virtual region;
In the second protrusion forming step,
A third application step of applying a third functional liquid containing the material of the second protrusion at a position including at least a part on the first convex portion;
A third solidification step of solidifying the applied third functional liquid to form the second protrusion,
A fourth application step of applying a fourth functional liquid containing the material of the second thick film to the second virtual region surrounded by the second protrusion,
And a fourth solidifying step of solidifying the fourth functional liquid applied to the second virtual region to form the second thick film. In the manufacturing method of the printed matter according to claim 1,
In the first application step,
Applying the first functional liquid to a first predetermined position on the surface of the substrate;
In the third application step,
The method for producing a printed matter, wherein the third functional liquid is applied to a second predetermined position including at least a part on the first convex portion. In the manufacturing method of the printed matter of Claim 1 or 2,
In the first application step,
The method for producing a printed material, wherein the first functional liquid is applied so that an arrangement density of the first functional liquid per unit area on the substrate is different. In the manufacturing method of the printed matter as described in any one of Claims 1-3,
In the first application step,
The method for producing a printed matter, wherein the first functional liquid is applied so that the dimensions of the first functional liquid applied in a scattered manner are different. In the manufacturing method of the printed matter as described in any one of Claims 1-4,
In the third application step,
The method for producing a printed matter, wherein the third functional liquid is applied so that the dimensions of the third functional liquids applied in a scattered manner are different. In the manufacturing method of the printed matter as described in any one of Claims 1-5,
The printed matter manufacturing method, wherein the first convex portion or the second convex portion includes a color material portion. In the manufacturing method of the printed matter as described in any one of Claims 1-6,
After the second protrusion forming step,
A method for producing a printed material, comprising a white layer forming step of forming a white layer covering the surface of the base material, the first convex portion, and the second convex portion. A substrate;
A first protrusion formed on the substrate;
A second convex portion formed at a position including at least a part on the first convex portion,
The first convex portion is
A plurality of first protrusions formed on the substrate;
A first thick film formed in a first virtual region surrounded by the plurality of first protrusions,
The second convex portion is
A plurality of second protrusions formed at positions including at least a part on the first convex part;
And a second thick film formed in a second virtual region surrounded by the plurality of second protrusions. The printed matter according to claim 8,
The printed matter, wherein a part of the first convex portion or the second convex portion has a color material portion. In the printed matter according to claim 8 or 9,
A printed matter comprising a white layer formed to cover the surface of the base material, the first convex portion, and the second convex portion.

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