JP2010076269A - Transfer method and transfer jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer method and a transfer jig, which never cause deterioration of print quality even when a printing object has a complicated shape. <P>SOLUTION: In the transfer method which uses a die 4 having a recessed part, a three-dimensional die surface 5 formed on the inner surface of the recessed part, and a through-hole 6 opened to the die surface 5, and a flat sheet-like soft film 3 to transfer a coating material 11 from the soft film 3 to a transfer object surface 12a of a printing object 12 having the transfer object surface 12a having a substantially similar figure to the die surface 5, the soft film 3 is disposed on the die 4 so as to close the recessed part, the coating material 11 is printed on the soft film 3, the recessed part is internally evacuated through the through-hole 6 to deform the soft film 3 to a position where it contacts with at least a part of the die surface 5, the transfer object surface 12a of the printing object 12 is pressed onto the deformed soft film 3 to transfer the coating material 11 from the soft film 3 to the transfer object surface 12a, and the printing object 12 with the coating material 11 transferred thereto is peeled from the soft film 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a transfer method and a transfer jig, and more particularly to a transfer method and a transfer jig for transferring a paint from a soft film onto a three-dimensional transfer target surface of a printed material.

  Conventionally, pad printing as shown in JP-A-2-239972 (Patent Document 1) is well known as one of printing methods for painting on a transfer surface of a three-dimensional printed material having a curved surface or the like. Yes.

  This printing method is a kind of offset printing in which transfer is performed using an intaglio. In this printing method, as shown in (a) to (f) of FIG. 5, (a) the coating 33 is applied to the surface of the intaglio printing original plate 30 having the recesses 31 and applied to the surface of the intaglio printing original plate 30. The paint 33 is removed with a spatula blade 32, and (b) the paint 33 is stored only in the recess 31.

  Thereafter, (c) the soft pad 34 having a curved surface is pressed against almost the entire surface of the intaglio printing original plate 30, and (d) the soft pad 34 is peeled off from the surface of the intaglio printing original plate 30, and the coating 33 is applied to the surface of the soft pad 34. Intermediate transfer.

  Thereafter, (e) the soft pad 34 onto which the coating material 33 has been intermediately transferred is pressed against the transfer surface of the substrate 35, and (f) the soft pad 34 is peeled off from the substrate 35, and the coating surface of the substrate 35 is coated with the coating material. 33 is transferred.

During the above operation, the paint 33 starts to dry from the portion exposed to the air, and the viscosity of the paint 33 increases. For this reason, the coating material 33 is transferred from the intaglio printing original plate 30 to the soft pad 34 and then from the soft pad 34 to the substrate 35.
JP-A-2-239972

  However, in the conventional pad printing shown in FIG. 5, the coating 33 once transferred from the intaglio printing original plate 30 to the soft pad 34 is transferred to the transfer surface of the printing material 35. It took a long time and the printing cost was high.

  Further, the soft pad 34 needs to have a shape suitable for the transfer of the printing material 35 to the transfer surface, and therefore a soft pad 34 having a different shape is required for each shape of the transfer surface. Also for the intaglio printing original plate 30, the shape and arrangement of the recesses 31 must be changed according to the painting pattern. For this reason, when printing on various types of substrate 35, it takes a lot of time to prepare and replace the intaglio printing original plate 30 and the soft pad 34, and the printing cost is high.

  Furthermore, when the transfer surface of the substrate 35 has a complicated shape and has protrusions or depressions, the soft pad 34 is pressed when the soft pad 34 is pressed against the transfer surface of the substrate 35. Print quality such as uneven printing due to catching on protrusions on the transfer surface or non-uniform extension of the shape of the depression on the transfer surface, resulting in print irregularities and inability to print the pattern accurately There was also the problem of inviting a decline in

  The present invention has been made in view of the above problems, and eliminates the need for an intermediate transfer step and eliminates the need to replace the intaglio printing original plate and the soft pad for each substrate, thereby reducing work time and printing costs. It is another object of the present invention to provide a transfer method and a transfer jig that can be reduced, and that do not cause a decrease in print quality even when the substrate has a complicated shape.

  Hereinafter, each means suitable for solving the above-described problems will be described with additional effects and the like as necessary.

  The transfer method of the present invention uses a mold having a recess, a three-dimensional mold surface formed on the inner surface of the recess, a through-hole opening in the mold surface, and a flat soft film. A transfer method for transferring a coating material from a soft film to a transfer surface of a printed material having a transfer surface having a shape similar to or substantially similar to a surface, wherein the soft film is disposed in the mold so as to close the concave portion A soft film placement step, a soft film printing step for printing a paint on the soft film as a pre-process or a post-process of the soft film placement step, and evacuating the recess from the through-hole, A soft film deforming step for deforming the film to a position in contact with at least a part of the mold surface, pressing the transferred surface of the printed material against the deformed soft film, and applying the coating material from the soft film to the transferred surface The substrate pressing process to transfer the paint and the paint was transferred Serial, characterized in that it comprises, and the substrate removal step of peeling the printing material from the soft membrane.

  According to such a configuration, the soft film (soft pad) has a flat plate shape, unlike the three-dimensional soft pad used in conventional pad printing, and therefore the paint is directly printed on the soft film by a printer such as a printer. Can do. As a result, the intermediate transfer process of the paint to the soft pad required in the conventional pad printing becomes unnecessary, and the transfer process is simplified, so that the working time can be shortened and the printing cost can be reduced. In addition, printing of the coating material to a soft film may be performed as a pre-process of a soft film arrangement | positioning process, and may be performed as a post process.

  In addition, when printing on various types of printed materials by conventional pad printing, it is necessary to produce an intaglio printing original plate according to the painting pattern of the printed material. According to the configuration of the present invention, the printer Since the paint can be directly printed on the soft film by a printing machine such as a printing press, it is not necessary to produce an intaglio printing original plate and is suitable for multi-product printing. In addition, since it is not necessary to prepare or replace the intaglio printing original plate for each substrate, it is possible to shorten the work time and the printing cost.

  In addition, by changing the mold formed on the inner surface of the recess, the deformed shape of the soft film after evacuation can be controlled, so that the shape of the transfer surface of the printed material can be easily changed without replacing the soft film. It can be rearranged to the corresponding transfer jig. Therefore, the transfer method of the present invention is suitable for multi-product printing.

  Further, the transfer method of the present invention transforms the transfer surface into a soft film by deforming the soft film into a shape close to the transfer surface of the print before pressing the transfer surface of the print onto the soft film. The deformation of the soft film during pressing can be suppressed as much as possible. Therefore, even when the transfer surface of the printing material has a complicated shape, the soft film is not stretched unevenly, and the transfer surface and the soft film can be sufficiently adhered to each other. As a result, it is possible to ensure good print quality without causing printing unevenness or pattern deformation.

  In a preferred aspect, the transfer method of the present invention is characterized in that, in the soft film printing step, a paint is printed on the soft film by a printer.

  Unlike the three-dimensional soft pad used in conventional pad printing, the soft film according to the present invention has a flat plate shape. Therefore, various methods such as letterpress printing, intaglio printing, and screen printing can be used as a method for printing a paint on the soft film. Although a printing method can be adopted, working efficiency is best when a printer that performs printing based on a command from a computer is used.

  In a preferred aspect, the transfer method of the present invention, in a preferred embodiment, in the printing material pressing step, in the state where the inside of the recess is open to the atmosphere from the through hole, the printing surface of the printing material is pressed against the soft film, The soft film and the mold surface are brought into close contact with each other.

  After the air in the recess is released to the atmosphere through the through-hole, the soft film is secured after the transfer surface of the print medium is pressed against the soft film to ensure the adhesion between the transfer surface of the print medium and the soft film. And the mold surface of the mold can be brought into close contact with each other. According to this transfer method, even if the molding accuracy of the mold is somewhat poor and there are some molding defects on the mold surface, before pressing the soft film against the mold surface, The surface to be transferred and the soft film are completely brought into close contact with each other, and then the pressure between the surface to be transferred and the soft film is pressed to increase the adhesion between the soft film and the mold surface while discharging the air in the recesses to the outside. it can. Thereby, it is possible to ensure a good print quality without being influenced by the presence of the defective molding recess without deforming the soft film along the molding defective recess on the mold surface.

  In a preferred aspect, in the transfer method of the present invention, in the printing material take-out step, the printing material to which the coating material has been transferred is peeled off from the soft film while supplying air from the through hole toward the concave portion. It is characterized by.

  Since the transfer surface of the printing material and the soft film are in close contact with each other, a negative pressure is generated on the contact surface between the transfer surface of the printing material and the soft film when the printing material is peeled off from the soft film. In this state, if the printed material is forcibly peeled off, the print quality may be deteriorated such as deformation of the pattern. The transfer method of the present invention is configured to peel off the printed material from the soft film while inflating the soft film by supplying air from the through-hole toward the concave portion, so that a negative pressure is not generated on the contact surface. The printed material can be easily peeled off from the soft film.

  In a preferred embodiment, the transfer method according to the present invention may further include, as a subsequent step of the printing object pressing step, from the through hole while maintaining the state where the transfer surface of the printing object is pressed against the soft film. A soft film pressing step is provided, in which air is supplied toward the recess to press the soft film against the transfer surface.

  In the substrate pressing process, the pressure on the contact surface of the substrate to be transferred and the soft film depends on the molding accuracy of the mold surface and the degree of deformation of the soft film in the soft film deformation process. The pressure may not be uniform over the entire area. Even in such a case, if the soft film pressing process is performed as a subsequent process of the printed material pressing process, the soft film swells due to the air supplied from the through hole toward the concave portion, and the soft film is applied to the printed material. The pressure pressed against the transfer surface can be brought closer to a more uniform state. Thereby, the adhesiveness of the to-be-transferred surface of a to-be-printed material and a soft film becomes more reliable, and favorable printing quality can be ensured.

  The transfer jig of the present invention is a transfer jig for transferring a paint printed on a soft film to a three-dimensional transfer target surface of a printing material, the recess being formed on the inner surface of the recess. A mold surface having a shape similar to or substantially similar to the surface, a mold having a through-hole opening in the mold surface, a flat soft film on which a paint is printed, and the inside of the recess closed by the soft film And vacuuming means for deforming the soft film to a position in contact with at least a part of the mold surface by vacuuming from the through hole.

  According to such a configuration, unlike the three-dimensional soft pad used in conventional pad printing, the soft film has a flat plate shape, so that the paint can be directly printed on the soft film by a printer such as a printer. As a result, the intermediate transfer process of the paint to the soft pad required in the conventional pad printing becomes unnecessary, and the transfer process is simplified, so that the working time can be shortened and the printing cost can be reduced.

  In addition, when printing on various types of printed materials by conventional pad printing, it is necessary to produce an intaglio printing original plate according to the painting pattern of the printed material. According to the configuration of the present invention, the printer Since the paint can be directly printed on the soft film by a printing machine such as a printing press, it is not necessary to produce an intaglio printing original plate and is suitable for multi-product printing. In addition, since it is not necessary to prepare or replace the intaglio printing original plate for each substrate, it is possible to shorten the work time and the printing cost.

  In addition, by changing the mold formed on the inner surface of the recess, the deformed shape of the soft film after evacuation can be controlled, so that the shape of the transfer surface of the printed material can be easily changed without replacing the soft film. It can be rearranged to the corresponding transfer jig. Therefore, the transfer jig of the present invention is suitable for multi-product printing.

  In addition, the transfer jig of the present invention deforms the soft film into a shape close to the transfer surface of the printing material before pressing the transfer surface of the printing material against the soft film. The deformation of the soft film when it is pressed against can be suppressed as much as possible. Therefore, even when the transfer surface of the printing material has a complicated shape, the soft film is not stretched unevenly, and the transfer surface and the soft film can be sufficiently adhered to each other. As a result, it is possible to ensure good print quality without causing printing unevenness or pattern deformation.

  In a preferred aspect, the transfer jig of the present invention further includes air supply means for supplying air from the through hole toward the recess.

  According to such a configuration, since the transfer jig also includes an air supply unit in addition to the vacuuming unit, the degree of deformation of the soft film can be controlled by adjusting the amount of air in the recess.

  In a preferred embodiment, the transfer jig of the present invention is characterized in that fine unevenness that suppresses the flow of the paint is formed on a printing surface on which the paint of the soft film is printed.

  Since the flow of the paint to the side is suppressed due to the resistance of the fine irregularities, even when a pattern with a fine pattern is printed on a soft film, this pattern is maintained without breaking down and the print quality deteriorates It is possible to transfer a fine pattern without incurring.

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

  FIG. 1 is a cross-sectional view illustrating a transfer method according to an embodiment of the present invention, in which (a) is a soft film printing step of printing a paint on a soft film after the soft film placement step, and (b) is a soft film. A soft film deforming step for deforming to a position in contact with the mold surface, (c) a printed material pressing step for pressing the transferred surface of the printed material against the soft film, and (d) a printed material removing step for peeling the printed material from the soft film. Show.

  The transfer jig 1 of this embodiment seals the bottomed cylindrical container 2 having an opening at the top, and the opening of the container 2, and prints the paint 11 to be transferred to the transfer surface 12 a of the substrate 12. A flat plate-like soft film 3 and a mold 4 which is disposed in the container 2 and has a mold surface 5 having a shape similar to or substantially similar to the transfer surface 12a of the printed material 12 on the soft film 3 side; A vacuum evacuation means for evacuating the air in the container 2 sealed with the soft film 3 and a pump P as an air supply means for supplying air into the container 2 are configured.

  The container 2 is made of, for example, an aluminum plate as a material that does not deform with respect to the negative pressure when the air in the container 2 is evacuated, and the mold 4 is disposed and fixed in the container 2. And a mold fixing member (not shown).

  The soft film 3 has a rigidity capable of self-supporting in a flat plate shape before the air in the container 2 is evacuated, and is flexible so as to be flexibly deformed against a negative pressure when the air in the container 2 is evacuated. For example, the material having the property is made of silicon having a thickness t = 3 to 5 mm. The printed surface 3a on which the coating material 11 of the soft film 3 is printed has a mirror finish to ensure print quality.

  The mold 4 has a mold surface 5 having a shape similar to or substantially similar to the transfer surface 12a of the substrate 12, and the container 5 is directed toward the soft film 3 (opening side of the container 2). 2 is arranged. The shape of the mold surface 5 is as follows from the transfer surface 12a of the substrate 12 by the amount corresponding to the thickness t of the soft film 3, as shown in FIG. It has an enlarged (offset) shape.

  The mold surface 5 is preferably similar in shape to the transfer surface 12a of the substrate 12; however, if it is somewhat similar in shape, that is, substantially similar, the soft film 3 is used in the substrate pressing process described later. And the transfer surface 12a can be sufficiently adhered to each other, so that there is no problem in securing good print quality.

  A plurality of through holes 6 are formed in the mold 4, and one end of the through hole 6 opens on the mold surface 5, and the other end opens on a surface of the mold 4 opposite to the mold surface 5. As a result, the lower container inner space 7 and the upper container inner space 8 formed in a state where the opening of the container 2 is sealed with the soft film 3 communicate with each other through the through hole 6.

  Note that the number and arrangement of the plurality of through holes 6 need to be appropriately arranged according to the area and shape of the transferred surface 12a of the printing material 12. For example, in order to accurately deform the soft film 3 along the mold surface 5 in the soft film deformation process described later, it is desirable that the multiple through holes 6 be uniformly distributed over the entire mold surface 5. It is desirable that the through hole 6 be disposed at least in the most depressed portion of the mold surface 5.

  A through-hole 9 is formed in the side wall of the container 2 so as to communicate the lower mold inner space 7 and the outside of the container 2, and the through-hole 9 and the pump P are connected by a pipe 10. In order to facilitate the attachment / detachment of the pipe 10, the through hole 9 and the pipe 10 may be connected by a coupler.

  The transfer method according to this embodiment will be described with reference to FIGS. 1 (a) to 1 (d) and FIG.

  FIG. 1A shows a soft film printing process after the soft film arranging process. In the soft film arranging process, after the opening of the container 2 is sealed with the soft film 3, the soft film printing process is performed in the soft film printing process. The paint 11 to be transferred to the transfer surface 12a is printed on the soft film 3. As shown in FIG. 3, the printing of the coating material 11 on the soft film 3 is efficient when an ink jet printer 13 that performs printing based on a command from a computer is used.

  The structure of the ink jet printer 13 is the same as that of a commercially available ink jet printer that performs paper printing, but differs in that the transfer jig 1 is installed instead of paper.

  The ink jet printer 13 includes an ink jet head 14 that discharges the coating material 11 and a transfer jig installation base 15 on which the transfer jig 1 is installed. A height adjusting mechanism 17 is provided.

  Printing of the coating material 11 on the soft film 3 is performed by replacing the transfer jig 1 in a state where the soft film 3 and the mold 4 are attached to the container 2 and the pipe 10 is not connected with the transfer jig on the ink jet printer 13. 15 is installed. Subsequently, the height of the transfer jig mounting base 15 is adjusted by the height adjusting mechanism 17 until the ink jet head 14 and the soft film 3 become a predetermined distance.

  Subsequently, a command is sent from the computer to the ink jet printer 13, and the ink jet head 14 is reciprocated along the guide while the paint 11 is discharged from the ink jet head 14 toward the soft film 3. A predetermined pattern is printed on the soft film 3 by feeding the transfer jig 1 with the tool feeding mechanism 16.

  After the printing on the soft film 3 is completed, the pump P is connected to the transfer jig 1 so that the state shown in FIG.

  As described above, the soft film 3 of the present embodiment has a flat plate shape unlike the three-dimensional soft pad used in the conventional pad printing, and thus the ink-jet printer 13 is used to directly paint the printed surface 3a of the soft film 3. 11 can be printed. As a result, the intermediate transfer process of the paint to the soft pad required in the conventional pad printing becomes unnecessary, and the transfer process is simplified, so that the working time can be shortened and the printing cost can be reduced.

  In addition, when printing on various types of printed materials by conventional pad printing, it is necessary to produce an intaglio printing original plate according to the painting pattern of the printed material. In the present embodiment, the inkjet printer 13 is used. Since the paint 11 can be printed directly on the soft film 3, it is not necessary to produce an intaglio printing original plate, which is suitable for multi-product printing. In addition, since it is not necessary to prepare or replace the intaglio printing original plate for each substrate, it is possible to shorten the work time and the printing cost.

  FIG. 1B shows a soft film deformation process in which the soft film 3 is deformed to a position in contact with the mold surface 5 of the mold 4 following the soft film printing process. When the air in the container 2 is evacuated by the pump P, the soft film 3 is deformed while being bent downward, whereby the air in the mold upper container inner space 8 is discharged through the through hole 6, and the soft film 3 is removed from the mold surface 5. Adheres completely to the entire surface.

  Here, in the case where printing is performed on various types of printed materials 12 having different shapes of the transferred surface 12a of the printed material 12, the soft film after evacuation is obtained by replacing the mold 4 disposed in the container 2. 3 can be controlled, so that the soft film 3 can be easily replaced with the transfer jig 1 corresponding to the shape of the transfer surface 12a of the substrate 12 without replacing the soft film 3. Therefore, the transfer method of this embodiment can easily cope with multi-product printing.

  FIG. 1 (c) shows a printing object pressing that transfers the coating material 11 to the transferred surface 12 a of the printed material 12 by pressing the transferred surface 12 a of the printed material 12 against the deformed soft film 3 following the soft film deformation step. The process is shown. If necessary, after the transfer surface 12a of the substrate 12 is pressed against the soft film 3, if the air is supplied into the container 2 by the pump P while maintaining this state, the inside of the mold upper container is passed through the through hole 6. When the air is supplied to the space 8, the soft film 3 swells, and the pressure with which the soft film 3 is pressed against the transfer surface 12 a of the substrate 12 can be made closer to a more uniform state.

  In the present embodiment, since a large number of through-holes 6 are arranged over the entire surface of the mold surface 5, the effect of bringing the above-mentioned pressure closer to a more uniform state is high. Adhesion with the soft film 3 becomes more reliable, and good print quality can be ensured.

  The transfer method according to the present embodiment is a transfer method in which the soft film 3 is deformed into a shape close to the transfer surface 12a of the substrate 12 before the transfer surface 12a of the substrate 12 is pressed against the soft film 3. Therefore, the deformation of the soft film 3 when the transfer surface 12a is pressed against the soft film 3 can be minimized. Therefore, even if the transfer surface 12a of the substrate 12 has a complicated shape, the soft film 3 is not stretched unevenly and the transfer surface 12a and the soft film 3 are sufficiently adhered to each other. Can do. As a result, it is possible to ensure good print quality without causing printing unevenness or pattern deformation.

  FIG. 1 (d) shows a printed material take-out step for peeling the printed material 12, to which the coating material 11 has been transferred, from the soft film 3 following the printed material pressing process. If necessary, air is supplied into the container 2 by the pump P, and the printed material 12 is peeled off from the soft film 3 while the soft film 3 is inflated, so that the contact between the soft film 3 and the transferred surface 12a of the printed material 12 occurs. The printed material 12 can be easily peeled from the soft film 3 without generating negative pressure on the surface.

  Through the above steps, the transfer of the coating material 11 from the soft film 3 to the transfer surface 12a of the substrate 12 is completed. The paint 11 remaining on the soft film 3 after the transfer can be removed with a cleaning adhesive tape.

  As is clear from the above detailed description, according to the present embodiment, the intermediate transfer process is unnecessary, and the replacement of the intaglio printing original plate and the soft pad for each substrate is not required, thereby shortening the work time. In addition, it is possible to provide a transfer method and a transfer jig that do not cause a decrease in print quality even when the printed material has a complicated shape.

  Note that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

  For example, in the present embodiment, the transfer jig 1 is installed in the ink jet printer 13 and printing is performed on the soft film 3. However, only the soft film 3 is installed and printing is performed, and the soft film 3 is printed. Can also be attached to the container 2.

  Further, in the soft film deformation step shown in FIG. 1B, the soft film 3 is deformed to a position where the soft film 3 is completely adhered to the entire surface of the mold surface 5. It is also possible to limit the deformation up to the position where it touches the part. In this case, in the printing material pressing step shown in FIG. 1C, for example, a valve (not shown) arranged in the pipe 10 connecting the container 2 and the pump P is opened to If the transfer surface 12a of the substrate 12 is pressed against the soft film 3 in a state where the air is released to the atmosphere, the air in the mold upper container inner space 8 is pressed by the pressing pressure that presses the transfer surface 12a against the soft film 3. Is discharged to the outside, and the soft film 3 and the mold surface 5 can be brought into close contact with each other.

  According to this transfer method, even if the molding accuracy of the mold 4 is slightly poor and there are some molding defects on the mold surface 5, the soft film 3 is formed into the molding defects on the mold surface 5. Therefore, it is possible to ensure good print quality without being influenced by the presence of the defective molding recess.

  In the present embodiment, the surface to be printed 3a on which the coating material 11 of the soft film 3 is printed is mirror-finished. However, when a pattern to be printed includes a fine pattern, FIG. As shown, it is preferable to use a soft film 20 with fine unevenness in which a fine uneven process is performed on a printing surface on which a soft film paint is printed.

  Since both the concave portion 21 and the convex portion 22 of the soft film 20 with fine unevenness become resistance, the flow of the paint to the side is suppressed, so even when a pattern of a fine pattern is printed on the soft film 20 The pattern is held without breaking, and a fine pattern can be transferred without deteriorating the printing quality.

  The effect of suppressing the flow of the paint varies depending on the degree of subdivision of the concave portion 21 and the convex portion 22, and the effect of suppressing the flow of the paint increases as the fine unevenness is subdivided. Therefore, it is desirable to use the soft film 20 with fine unevenness having the optimal fine unevenness according to the degree of the fine pattern of the pattern.

  Note that, when this fine unevenness processing is performed by photoetching, the dimensions of the recesses 21 and the protrusions 22 are restricted by the limit of the etching processing accuracy, and the widths of the recesses 21 and the protrusions 22 are 0.1 μm or more. .

It is sectional drawing explaining the transfer method which concerns on one Embodiment of this invention, (a) is a soft film printing process which prints a coating material on a soft film after a soft film arrangement | positioning process, (b) is a soft film on a mold surface A soft film deformation step for deforming to a contact position, (c) shows a printed material pressing step for pressing the transfer surface of the printed material against the soft film, and (d) shows a printed material take-out step for peeling the printed material from the soft film. . The main part A in FIG.1 (c) is expanded and shown. It is a perspective view of the soft film printing process which concerns on one Embodiment of this invention. It is sectional drawing of the soft film with a fine unevenness | corrugation by which the fine uneven | corrugated process was given to the to-be-printed surface where the coating material of a soft film is printed. It is sectional drawing explaining the pad printing in a prior art, (a) is the situation where the coating material of the surface of the intaglio printing original plate is removed with the blade, (b) is the paint remaining only in the recessed part of the intaglio printing original plate. Situation, (c) is a situation where the soft pad is pressed against the surface of the intaglio printing original plate, (d) is a situation where the soft pad is peeled off from the surface of the intaglio printing original plate, and the paint is transferred onto the surface of the soft pad, (e) Shows the situation where the soft pad is pressed against the transfer surface of the substrate, and (f) shows the situation where the soft pad is removed from the substrate and the paint is transferred to the transfer surface of the substrate.

Explanation of symbols

P pump (evacuation means or air supply means)
1 Transfer Jig 2 Container 3 Soft Film (Soft Pad)
3a Printed surface 4 mold 5 mold surface 6 through hole 7 lower mold inner space 8 upper mold inner space 9 through hole 10 piping 11 paint 12 printed material 12a transferred surface 13 inkjet printer 14 inkjet head 15 transfer jig installation table 16 Transfer jig feeding mechanism 17 Height adjusting mechanism 20 Soft film with fine unevenness 21 Concavity 22 Convex portion

Claims (8)

Using a recess, a three-dimensional mold surface formed on the inner surface of the recess, a mold having a through-hole opening in the mold surface, and a flat soft film, the shape similar to or substantially similar to the mold surface A transfer method for transferring a paint from the soft film to the transfer surface of a substrate having a shape transfer surface,
A soft film placement step of placing the soft film in the mold so as to close the recess;
As a pre-process or a post-process of the soft film placement process, a soft film printing process of printing a paint on the soft film,
A soft film deformation step of evacuating the concave portion from the through hole and deforming the soft film to a position in contact with at least a part of the mold surface;
A printing material pressing step of pressing the transferred surface of the printed material against the deformed soft film, and transferring the paint from the soft film to the transferred surface;
A printing material take-out step of peeling off the printing material to which the paint has been transferred from the soft film.   The transfer method according to claim 1, wherein in the soft film printing step, the paint is printed on the soft film by a printer.   In the printing material pressing step, the transfer surface of the printing material is pressed against the soft film in a state where the inside of the recess is opened to the atmosphere from the through hole, and the soft film and the mold surface are brought into close contact with each other. The transfer method according to claim 1, wherein:   4. The printing material removal step, wherein the printing material to which the paint has been transferred is peeled off from the soft film while supplying air from the through hole toward the concave portion. 2. The transfer method according to item 1.   Further, as a subsequent step of the substrate pressing process, air is supplied from the through hole toward the recess while maintaining the state where the transfer surface of the substrate is pressed against the soft membrane. 5. The transfer method according to claim 1, further comprising a soft film pressing step of pressing the film against the surface to be transferred. A transfer jig for transferring a paint printed on a soft film onto a three-dimensional transfer surface of a substrate,
A mold having a recess, a mold surface similar to or substantially similar to the transferred surface formed on the inner surface of the recess, and a through hole opening in the mold surface;
A flat soft film on which the paint is printed;
Evacuation means for deforming the soft film to a position in contact with at least a part of the mold surface by evacuating the inside of the recess closed by the soft film from the through hole. A transfer jig.   The transfer jig according to claim 6, further comprising air supply means for supplying air from the through hole toward the concave portion.   The transfer jig according to claim 6 or 7, wherein fine unevenness that suppresses the flow of the paint is formed on a printing surface on which the paint of the soft film is printed.

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