Transfer apparatus and transfer method

Abstract

The present application provides a kind of transfer printing device and transfer printing method for inhibiting the color development state of each image transferred to the two sides of cloth piece caused by the difference of transfer printing energy to appear difference and become not identical.The transfer printing device has: first reel body, which is wound with the first transfer printing piece formed with first image;Second reel body, which is wound with the second transfer printing piece formed with second image;Third reel body, which is wound with the cloth piece for transferring each image to two sides;Conveying part, which transports three-layer piece in the state of making cloth piece sandwiched between first transfer printing piece and second transfer printing piece along conveying direction and makes it pass through transfer printing area;First heating part, which heats three-layer piece from first transfer printing piece side in transfer printing area;Second heating part, which heats three-layer piece from second transfer printing piece side in transfer printing area.

Description

Technical Field

[0001] This invention relates to a transfer device and a transfer method. Background Technology

[0002] As an example of prior art for such a device, the apparatus described in Patent Document 1 can be cited. Patent Document 1 discloses a transfer method in which images of the two transfer papers are transferred to both sides of the fabric by heating a cloth sandwiched between a first transfer paper and a second transfer paper.

[0003] Patent Document 1 describes a heating cylinder that heats the transfer area from the second transfer paper side. However, it does not consider the case where heating occurs from the first transfer paper side. Therefore, the transfer energy applied by heating the second transfer paper side is greater than the transfer energy applied to the first transfer paper side. This difference in transfer energy affects the color development of the images transferred to both sides. That is, color differences may occur between the images transferred to the two sides. There is still room for improvement in this regard.

[0004] Patent document 1: Japanese Patent Application Publication No. 10-237775. Summary of the Invention

[0005] To address the aforementioned issues, the transfer apparatus of the present invention is characterized by comprising: a first roll body wound with a first transfer sheet having formed a first image using sublimation ink; a second roll body wound with a second transfer sheet having formed a second image using sublimation ink; a third roll body wound with a fabric sheet for transferring the first image onto a first surface and the second image onto a second surface; a conveying unit that conveys the three-layer sheet, with the fabric sheet sandwiched between the first and second transfer sheets, along a conveying direction and passes the three-layer sheet through a transfer area; a first heating unit that heats the three-layer sheet from the first transfer sheet side in the transfer area; and a second heating unit that heats the three-layer sheet from the second transfer sheet side in the transfer area.

[0006] Furthermore, the transfer method according to the present invention is characterized in that it is a transfer method performed by a transfer device comprising: a first roll body wound with a first transfer sheet having a first image formed using sublimation ink; a second roll body wound with a second transfer sheet having a second image formed using sublimation ink; a third roll body wound with a fabric sheet for transferring the first image onto a first surface and transferring the second image onto a second surface; a conveying unit for conveying the three-layer sheet with the fabric sheet sandwiched between the first transfer sheet and the second transfer sheet in a conveying direction and for passing the three-layer sheet through a transfer area; and a heating unit for heating the three-layer sheet. In the transfer method, the conveyed three-layer sheet is heated from the first transfer sheet side and further heated from the second transfer sheet side to perform the transfer. Attached Figure Description

[0007] Figure 1 This is a side view schematic diagram of the outline structure of the transfer device in Embodiment 1.

[0008] Figure 2 for Figure 1 Enlarged view of the main parts.

[0009] Figure 3 This is a side view schematic diagram of the outline structure of the transfer device in Embodiment 2.

[0010] Figure 4 This is a side view schematic diagram of the outline structure of the transfer apparatus of Embodiment 3 and Embodiment 4.

[0011] Figure 5 This is a side view of the main parts of the transfer device in Embodiment 5. Detailed Implementation

[0012] Hereinafter, the present invention will be described in summary.

[0013] To address the aforementioned issues, the transfer apparatus according to the first aspect of the present invention is characterized by comprising: a first roll body wound with a first transfer sheet having a first image formed using sublimation ink; a second roll body wound with a second transfer sheet having a second image formed using sublimation ink; a third roll body wound with a fabric sheet for transferring the first image onto a first surface and the second image onto a second surface; a conveying unit that conveys the three-layer sheet in a conveying direction with the fabric sheet sandwiched between the first and second transfer sheets, and allows the three-layer sheet to pass through a transfer area; a first heating unit that heats the three-layer sheet in the transfer area from the first transfer sheet side; and a second heating unit that heats the three-layer sheet in the transfer area from the second transfer sheet side.

[0014] According to this method, a first heating unit heats the three-layer sheet from the first transfer sheet side in the transfer area, and a second heating unit heats the three-layer sheet from the second transfer sheet side in the transfer area. This allows the transfer energy applied by heating the transfer area from the second transfer sheet side to be equal to the transfer energy applied from the first transfer sheet side. Therefore, it is possible to suppress the situation where the color development of the images transferred to both sides of the fabric sheet becomes unequal due to differences in transfer energy, i.e., it is possible to suppress color differences between the two sides.

[0015] The transfer apparatus according to the second aspect of the present invention is a subordinate aspect of the first aspect, characterized in that it includes a pressure application section that applies pressure to the three-layer sheet located in the region heated by the first heating section and the second heating section in a direction of mutual contact.

[0016] According to this method, the transfer is performed while the pressure application section applies pressure to the three layers in a direction where they are in close contact with each other. This ensures a firm transfer.

[0017] The transfer apparatus according to the third aspect of the present invention is a subordinate aspect of the second aspect, characterized in that the first heating part has an outer surface of a cylindrical body and heats the three-layer sheet that is in surface contact with the outer surface while being transported, and the second heating part heats the three-layer sheet in a manner located on the side opposite to the first heating part.

[0018] According to this method, the first heating section heats the three-layer sheet that is in surface contact with the outer surface of the cylindrical body. On the other hand, the second heating section is configured to heat the three-layer sheet in a manner opposite to the first heating section. That is, the generally U-shaped curved portion of the three-layer sheet, which is wound around the outer surface of the cylindrical body constituting the first heating section and in surface contact, is heated from the inside. Furthermore, the curved portion of the three-layer sheet is heated from the outside by the second heating section. Therefore, by having the curved portion of the three-layer sheet, which forms the same area, heated from the inside by the first heating section and from the outside by the second heating section, it becomes easier to apply transfer energy equally to both surfaces.

[0019] The transfer apparatus involved in the fourth aspect of the present invention is a subordinate aspect of the third aspect, characterized in that the second heating unit heats the three-layer sheet in a non-contact manner by means of radiant heat.

[0020] According to this method, the second heating element is configured to heat the three-layer sheet in a non-contact manner via radiant heat. Therefore, the second heating element can be configured with a simple structure.

[0021] The transfer apparatus involved in the fifth aspect of the present invention is a subordinate aspect of the third aspect, characterized in that the second heating part consists of a plurality of heating rollers that heat the three-layer sheet while in contact with and rotating it.

[0022] According to this method, the second heating unit comprises multiple heating rollers that heat the three-layer sheet while in contact with and rotating it. This allows for a simple structure for the second heating unit. Furthermore, by arranging the heating rollers in a state where they are pressed against the three-layer sheet, it is possible to configure the unit to possess not only heating functionality but also part or all of the pressure application function of the pressure application unit.

[0023] The transfer apparatus according to the sixth aspect of the present invention is a subordinate aspect of the second aspect, characterized in that the first heating part has an outer surface of a cylindrical body and heats the three-layer sheet that is in surface contact with the outer surface while being conveyed, the second heating part heats the three-layer sheet at a position different from that of the first heating part, and the pressure applying part at the different positions of the three-layer sheet is a pressure roller that applies the pressure to the three-layer sheet from the side opposite to that of the second heating part.

[0024] According to this method, the second heating section heats the three-layer sheet at a different position than the first heating section. Furthermore, the pressure application section at the different positions of the three-layer sheet is a pressure roller that applies pressure to the three-layer sheet from the side opposite to the second heating section. This increases the flexibility in configuring the second heating section, making design easier.

[0025] The transfer apparatus according to the seventh aspect of the present invention is a type subordinate to the sixth aspect, characterized in that, in addition to the structure that the second heating unit heats the three-layer sheet at a position different from that of the first heating unit, it also has a structure that heats the three-layer sheet at a position opposite to that of the first heating unit.

[0026] According to this method, the second heating section, in addition to heating the three-layer sheet at a position different from that of the first heating section, also has a structure that heats the three-layer sheet at a position opposite to that of the first heating section. That is, it possesses structures combining those of the third and sixth methods. Therefore, it is possible to obtain the effects of both the third and sixth methods.

[0027] The transfer apparatus of the eighth aspect of the present invention is a subordinate aspect of the second aspect, characterized in that the first heating part has a first plane that contacts the three-layer sheet while moving along the conveying direction, the second heating part has a second plane that contacts the three-layer sheet while moving along the conveying direction, and the first plane and the second plane also serve as the pressure application part.

[0028] According to this method, the first heating unit has a first plane that contacts the three-layer sheet while moving. The second heating unit has a second plane that contacts the three-layer sheet while moving. Furthermore, the first and second planes are configured to also serve as pressure application units. Therefore, transfer to both sides of the fabric sheet can be performed while conveying it in a flat state without bending the three-layer sheet.

[0029] Furthermore, since the structure of the pressure application part can be realized by pressing the first plane of the first heating part and the second plane of the second heating part together, the construction can be simplified.

[0030] The transfer apparatus involved in the ninth aspect of the present invention is a subordinate aspect of the second aspect, characterized in that at least one of the first heating part and the second heating part can be disassembled.

[0031] According to this method, at least one of the first heating unit and the second heating unit is configured to be detachable. This allows for subsequent installation into existing transfer devices.

[0032] The transfer apparatus according to the tenth aspect of the present invention is, in any one of the first to ninth aspects, characterized in that it includes a control unit capable of accepting changes in at least one of the heating temperature of the first heating unit and the heating temperature of the second heating unit.

[0033] Depending on the type and combination of the first transfer sheet, the second transfer sheet, and the fabric sheet constituting the three layers, the appropriate level of transfer energy may vary. Furthermore, the appropriate level of transfer energy may also vary depending on the environmental conditions, such as temperature and humidity, of the location where the transfer device is situated.

[0034] According to this method, the control unit can accept changes in at least one of the heating temperature of the first heating unit and the heating temperature of the second heating unit. Therefore, by changing the heating temperature, adjustments can be made to change the magnitude of the transfer energy, thus maintaining the transfer energy at an appropriate level.

[0035] The transfer method according to the eleventh aspect of the present invention is characterized in that it is a transfer method performed by a transfer device comprising: a first roll body wound with a first transfer sheet having a first image formed using sublimation ink; a second roll body wound with a second transfer sheet having a second image formed using sublimation ink; a third roll body wound with a fabric sheet for transferring the first image onto a first surface and the second image onto a second surface; a conveying unit for conveying the three-layer sheet with the fabric sheet sandwiched between the first transfer sheet and the second transfer sheet in a conveying direction and for passing the three-layer sheet through a transfer area; and a heating unit for heating the three-layer sheet. In the transfer method, the conveyed three-layer sheet is heated from the first transfer sheet side and further heated from the second transfer sheet side to perform the transfer.

[0036] According to this method, the same effect as the transfer device of the first method can be obtained.

[0037] Implementation

[0038] The following is based on Figures 1 to 5 The transfer apparatus and transfer method involved in the embodiments of the present invention will be described in detail below.

[0039] In the following description, as shown in the accompanying figures, the three mutually orthogonal axes are designated as the X-axis, Y-axis, and Z-axis. The arrows on the three axes (X, Y, Z) indicate the positive (+) direction and the negative (-) direction, respectively. The Z-axis corresponds to the vertical direction, i.e., the direction of gravity; the +Z direction represents vertically upward, and the -Z direction represents vertically downward. The X-axis and Y-axis correspond to the horizontal direction. The +X direction represents the right side of the transfer device, and the -X direction represents the left side of the transfer device. The +Y direction represents the front of the transfer device, and the -Y direction represents the rear of the transfer device.

[0040] Implementation Method 1 like Figure 1 and Figure 2 As shown, the transfer device 1 of Embodiment 1 includes a first roll body 2, a second roll body 3, a third roll body 4, a heating unit 5, and a conveying unit 6.

[0041] The first roll 2 is a roll on which a first transfer sheet 8, with a first image 7 formed by sublimation ink, is wound. The first roll 2 feeds the first transfer sheet 8 in the feed direction A by rotating an axis (not shown). The second roll 3 is a roll on which a second transfer sheet 10, with a second image 9 formed by sublimation ink, is wound. The second roll 3 feeds the second transfer sheet 10 in the feed direction B by rotating an axis (not shown). The third roll 4 is a roll on which a fabric sheet 13, such as cloth, is wound for transferring the first image 7 to the first surface 11 and the second image 9 to the second surface 12. The third roll 4 feeds the fabric sheet 13 in the feed direction C by rotating an axis (not shown).

[0042] The shafts of the first roll body 2, the second roll body 3, and the third roll body 4 are driven to rotate by transmitting rotational power from a motor (not shown in the figure).

[0043] The first transfer sheet 8, the second transfer sheet 10, and the fabric sheet 13 are positioned upstream of the transfer area 15 in the transport direction F of the transport section 5, as described later, and are arranged as a three-layer sheet 14 in which the fabric sheet 13 is sandwiched between the first transfer sheet 8 and the second transfer sheet 10, and pass through the transfer area 15.

[0044] The heating unit 5 includes a first heating unit 51 and a second heating unit 52. Both the first heating unit 51 and the second heating unit 52 can adjust their heating temperatures according to control signals from the control unit 25 (described later). The first heating unit 51 heats the three-layer sheet 14 in the transfer area 15 from the side of the first transfer sheet 8. In this embodiment, the first heating unit 51 is constructed from a rotating cylindrical body 20. Here, the cylindrical body 20 is a heating cylinder. The three-layer sheet 14 is heated by making surface contact with the outer surface 21 of the cylindrical body 20.

[0045] The second heating unit 52 heats the three-layer sheet 14 from the side of the second transfer sheet 10 within the transfer area 15. The second heating unit 52 heats the three-layer sheet 13 from the side opposite to the first heating unit 51. In this embodiment, the second heating unit 52 uses an infrared heater and heats the three-layer sheet 13 non-contactly via radiant heat. The second heating unit 52 may also utilize a warm air heater.

[0046] In this embodiment, at least one of the first heating unit 51 and the second heating unit 52 is configured in a way that allows for disassembly and assembly. Here, the second heating unit 52 is modularized in a disassembly and assembly manner.

[0047] The conveying unit 5 conveys the three-layer sheet 14 along the conveying direction F so that it passes through the transfer area 15. In this embodiment, the conveying unit 5 includes a first conveying roller 16, a second conveying roller 17, a third conveying roller 18, and a fourth conveying roller 19. A seamless felt belt 22 is wound around the four conveying rollers 16, 17, 18, and 19 of the conveying unit 15. The four conveying rollers 16, 17, 18, and 19 rotate to move the belt 22 in a circular motion, thereby conveying the three-layer sheet 14.

[0048] The belt 22 is configured to press the three-layer sheet 14 onto the outer surface 21 of the cylindrical body 20. That is, the belt 22 also functions as a pressure application part 23, which applies pressure to the three-layer sheet 14 located in the area heated by the first heating part 51 and the second heating part 52, i.e., the transfer area 15, in the direction in which the sheets 8, 13, and 10 are in close contact with each other.

[0049] As can be understood from the above description, the transfer area 15 is the area where the transported three-layer sheet 14 is heated by the heating unit 5, and further, it is the area where the pressure applied by the pressure application unit 23 is also applied.

[0050] The cylindrical body 20 and the belt 22 are configured to rotate synchronously.

[0051] like Figure 1 and Figure 2 As shown, the first transfer sheet 8, the second transfer sheet 10, and the fabric sheet 13 are configured such that, as they pass between the cylindrical body 20 and the first conveying roller 16, the sheets 8, 13, and 10 overlap to form a three-layer sheet 14. The generally U-shaped curved surface portion 24 of the three-layer sheet 14, which is wound around the outer surface 21 of the cylindrical body 20 constituting the first heating section 51 and makes surface contact with it, is... Figure 2 The curved surface portion 24 is heated from the inside. Furthermore, the three-layer sheet 14 allows the curved surface portion 24 to be heated from the outside via the second heating section 52.

[0052] The cylindrical section 20 is driven to rotate by receiving rotational power from a motor (not shown). This rotation allows the cylindrical section 20 to convey the three-layer sheet 14 along the conveying direction F. In other words, the cylindrical section 20 functions as both a heating element and a conveying section 5. The four conveying rollers 16, 17, 18, and 19 of the conveying section 15 are driven to rotate by receiving rotational power from a motor (not shown). Alternatively, at least one of the conveying rollers 16, 17, 18, and 19 may be driven to rotate, while the others rotate passively.

[0053] The three-layer sheet 14 is separated after passing through the transfer area 15 and then being reversed in the transport direction F by the second transport roller 17. The first transfer sheet 8 is wound up by the first take-up section 31 when the first image 7 has disappeared. Furthermore, the second transfer sheet 10 is wound up by the second take-up section 32 when the second image 9 has disappeared. The fabric sheet 13 is wound up by the third take-up section 33 after the first image 7 and the second image 9 have been transferred.

[0054] The first winding section 31, the second winding section 32, and the third winding section 33 are driven to rotate by receiving rotational power from a motor (not shown in the figure).

[0055] exist Figure 1 In the accompanying drawings, reference numerals 41, 42, 43, 44, 45, and 46 refer to guide components that guide the feeding of each sheet 8, 10, and 13.

[0056] The transfer apparatus 1 includes a control unit 25. The control unit 25 is configured to accept changes to at least one of the heating temperature of the first heating unit 51 and the heating temperature of the second heating unit 52. The control unit 25 is configured to change the heating temperature based on information input into the operation panel (not shown) of the transfer apparatus 1, indicating a change in the heating temperature.

[0057] The control unit 25 includes a CPU, a flash memory ROM, and RAM. The CPU performs various calculations according to a program stored in the flash memory ROM, thereby controlling the overall operation of the transfer apparatus 1, including the adjustment of the heating temperature. As an example of a storage unit, the flash memory ROM is a non-volatile memory capable of being read and written. As an example of a storage unit, the RAM temporarily stores various types of information.

[0058] Explanation of the function of Implementation Method 1: Transfer Method Next, the function of Implementation Method 1 will be explained.

[0059] The first transfer sheet 8 is fed from the first roll 2 to the transfer area 15. The second transfer sheet 10 is fed from the second roll 3 to the transfer area 15. The fabric sheet 13 is fed from the third roll 4 to the transfer area 15. The sheets 8, 13, and 10 become three overlapping sheets 14 with mutual surface contact as they pass between the first conveying roller 16 and the cylindrical body 20, which serves as the first heating unit 51.

[0060] When the three-layer sheet 14 is conveyed to the transfer area 15 via the conveying section 6, it is pressed against the rotating cylindrical body 20 by the pressure application section 23. As the three-layer sheet 14 is further conveyed to the transfer area 15, it is heated from the side of the first transfer sheet 8 by the first heating section 51 and from the side of the second transfer sheet 10 by the second heating section 52. That is, the three-layer sheet 14 is conveyed through the transfer area and transferred while being heated from both the first transfer sheet 8 side and the second transfer sheet 10 side.

[0061] Explanation of the effects of Implementation Method 1 (1) In this embodiment, the transfer area 15 includes a first heating section 51 that heats the three-layer sheet 14 from the side of the first transfer sheet 8, and a second heating section 52 that heats the three-layer sheet 14 from the side of the second transfer sheet 10 in the transfer area 15. Therefore, the transfer energy applied by heating the transfer area 15 from the side of the second transfer sheet 10 can be adjusted to be equal to the transfer energy applied to the transfer area 15 from the side of the first transfer sheet 8. Therefore, it is possible to suppress the situation where the color development states of the images 7 and 9 transferred to the two sides 11 and 12 of the fabric sheet 13 differ due to the difference in transfer energy, i.e., it is possible to suppress color differences on the two sides 11 and 12.

[0062] (2) Furthermore, in this embodiment, the transfer is performed while the pressure application section 23 applies pressure to the three-layer sheet 14 in the direction of mutual contact. As a result, a firm transfer can be achieved.

[0063] (3) Furthermore, in this embodiment, the first heating section 51 heats the three-layer sheet 14 that is in surface contact with the outer surface 21 of the cylindrical body 20. On the other hand, the second heating section 52 is configured to heat the three-layer sheet 14 in a manner located on the side opposite to the first heating section 51. That is, the generally U-shaped curved surface portion 24 of the three-layer sheet 14, which is wound around the outer surface 21 of the cylindrical body 20 constituting the first heating section 51 and in surface contact with it, is heated from the inside. Moreover, the curved surface portion 24 of the three-layer sheet 14 is heated from the outside by the second heating section 52.

[0064] Therefore, the three-layer sheet 14 heats the curved surface portion 24, which is the same area, from the inside by the first heating part 51 and from the outside by the second heating part 52, thereby making it easy to apply transfer energy equally to both sides 11, 12.

[0065] (4) Furthermore, in this embodiment, the second heating unit 52 is configured to heat the three-layer sheet 14 in a non-contact manner through radiant heat. As a result, the second heating unit 52 can be provided with a simple structure.

[0066] (5) Furthermore, in this embodiment, at least one of the first heating unit 51 and the second heating unit 52 is configured in a way that allows for disassembly and assembly. As such, it is also possible to install it into an existing transfer device later.

[0067] (6) Depending on the type and combination of the first transfer sheet 8, the second transfer sheet 10 and the fabric sheet 13 constituting the three-layer sheet 14, the appropriate level of transfer energy may vary. In addition, the appropriate level of transfer energy may also vary depending on the environmental conditions such as temperature and humidity of the location where the transfer device 1 is located.

[0068] In this embodiment, the control unit 25 can accept changes in at least one of the heating temperature of the first heating unit 51 and the heating temperature of the second heating unit 52. Therefore, by changing the heating temperature, adjustments can be made to change the magnitude of the transfer energy, thus maintaining the transfer energy at an appropriate level.

[0069] Implementation Method 2 Next, based on Figure 3 The transfer apparatus 1 according to Embodiment 2 will now be described. The same symbols are used for parts identical to those in Embodiment 1, and descriptions of their structure and corresponding effects are omitted. In this embodiment, the second heating unit 52 uses multiple heating rollers 26, 26, ... that heat the three-layer sheet 14 while in contact with and rotating it. Here, the heating rollers 26, 26, ... are arranged in a state where they are pressed against the outer surface 21 of the cylindrical body 20.

[0070] That is, it has the function of heating the three-layer sheet 14 and applying the same pressure as the pressure application part 23. Specifically, the heating rollers 26, 26, ... serve to support the pressure applied from the belt 22 to the three-layer sheet 14.

[0071] In this embodiment, the second heating section 52 consists of multiple heating rollers 26, 26, ... that heat the three-layer sheet 14 while in contact with and rotating it. This allows for a simple structure for the second heating section 52. Furthermore, by setting it in a manner that presses the heating rollers 26, 26, ... onto the three-layer sheet 14, it is possible to configure it to not only have a heating function but also part or all of the pressure application function of the pressure application section 23.

[0072] Implementation Method 3 Next, based on Figure 4 The transfer apparatus 1 according to Embodiment 3 will now be described. The same symbols will be used for parts that are the same as in Embodiment 1 or Embodiment 2, and descriptions of their structure and corresponding effects will be omitted.

[0073] In this embodiment, the first heating part 51 has the same outer surface 21 of the cylindrical body 20 as in embodiment 1, and heats the three-layer sheet 14 that is in contact with the outer surface 21 while being transported.

[0074] On the other hand, the second heating unit 52 is configured to heat the three-layer sheet 14 at a different location than the first heating unit 51. Here, although the second heating unit 52 uses an infrared heater that utilizes radiant heat for heating, it could also be a warm air heater. Alternatively, the second heating unit 52 could be composed of multiple heating rollers that contact and heat the three-layer sheet.

[0075] The pressure application section 23 for the different positions of the three-layer sheet 14 is a pressure roller 27 that applies the pressure to the three-layer sheet 14 from the side opposite to the second heating section 52.

[0076] In this embodiment, the second heating section 52 heats the three-layer sheet 14 at a different position than the first heating section 51. Furthermore, the pressure application section 23 corresponding to the different positions of the three-layer sheet 14 is a pressure roller 27 that applies the pressure to the three-layer sheet 14 from the side opposite to the second heating section 52. This increases the flexibility in configuring the second heating section 52, making the design easier.

[0077] Implementation Method 4 Next, based on Figure 4 The transfer apparatus 1 according to Embodiment 4 will now be described. The same symbols are used for parts identical to those in Embodiment 3, and descriptions of their structure and corresponding effects are omitted. This embodiment adds a heating roller 26 to the structure of Embodiment 3.

[0078] That is, in addition to the structure that heats the three-layer sheet 14 at a different position than the first heating section 51 (Embodiment 3), the second heating section 52 also has a structure that heats the three-layer sheet 14 at a position opposite to the first heating section 51. Here, the second heating section 51 that heats the three-layer sheet 14 at a position opposite to the first heating section 51 uses a heating roller 26.

[0079] Alternatively, multiple heating rollers 26 can be provided. Or, infrared heaters or warm air heaters can be used instead of heating rollers 26.

[0080] In this embodiment, the second heating section 52, in addition to the structure that heats the three-layer sheet 14 at a different position than the first heating section 51 (Embodiment 3), also includes a heating roller 26, etc., to heat the three-layer sheet 14 at a position opposite to the first heating section 51. That is, it has the structures of both Embodiment 2 and Embodiment 3. As a result, the effects of both Embodiment 2 and Embodiment 3 can be obtained.

[0081] Implementation Method 5 Next, based on Figure 5 The transfer apparatus 1 according to Embodiment 5 will now be described. The same symbols are used for parts identical to those in Embodiment 1, and descriptions of their structure and corresponding effects are omitted. This embodiment is configured as follows: The first heating unit 51 has a first plane 61 that contacts the triple-layer sheet 14 from the side of the first transfer sheet 8 while moving along the transport direction F. The second heating unit 52 has a second plane 62 that contacts the triple-layer sheet 14 from the side of the second transfer sheet 10 while moving along the transport direction F.

[0082] The first plane 61 is formed by a thermally conductive strip wound around a pair of heating rollers 63 and 64. The pair of heating rollers 63 and 64 rotate to cause the thermally conductive strip to move in a circular motion, thereby causing the portion opposite to the three-layer sheet 14 to contact the three-layer sheet 14 in a planar orientation.

[0083] The second plane 62 is made of a thermally conductive strip wound around a pair of heating rollers 65 and 66. The pair of heating rollers 65 and 66 rotate to cause the thermally conductive strip to move in a circular motion, thereby causing the portion opposite to the three-layer sheet 14 to contact the three-layer sheet 14 in a planar orientation.

[0084] In this embodiment, the first plane 61 and the second plane 62 are configured to also serve as pressure application parts 23. That is, the first plane 61 and the second plane 62 are configured to be pressed against each other by an elastic mechanism (not shown) while three layers of sheets 14 are sandwiched in between. Specifically, the first plane 61 is pressed against the first transfer sheet 8 via a pair of heating rollers 63 and 64. The second plane 62 is pressed against the second transfer sheet 10 via a pair of heating rollers 65 and 66.

[0085] In this embodiment, the first heating unit 51 has a first plane 61 that contacts the three-layer sheet 14 while moving. The second heating unit 52 has a second plane 62 that contacts the three-layer sheet 14 while moving. Furthermore, the first plane 61 and the second plane 62 are configured to also serve as pressure application units 23. As a result, transfer to both sides of the fabric sheet 13 can be performed while the three-layer sheet 14 is conveyed in a flat state without bending it.

[0086] Furthermore, since the structure of the pressure application part 23 can be realized by pressing the first plane 61 of the first heating part 51 and the second plane 62 of the second heating part 52 together, the structure can be simplified.

[0087] Other implementation methods Although the transfer apparatus 1 and transfer method involved in this invention are based on the structure of the embodiments described above, it is obvious that some structural changes or omissions can be made without departing from the spirit of the invention.

[0088] Symbol Explanation 1…Transfer device; 2…First roll body; 3…Second roll body; 4…Third roll body; 5…Heating unit; 6…Conveying unit; 7…First image; 8…First transfer sheet; 9…Second image; 10…Second transfer sheet; 11…First side; 12…Second side; 13…Fabric sheet; 14…Three-layer sheet; 15…Transfer area; 16…First conveyor roller; 17…Second conveyor roller; 18…Third conveyor roller; 19…Fourth conveyor roller; 20…Cylindrical body; 21… …outer surface; 22…belt; 23…pressure application section; 24…bending surface section; 25…control section; 26…heating roller; 27…pressure roller; 31…first winding section; 32…second winding section; 33…third winding section; 41, 42, 43, 44, 45, 46…guide components; 51…first heating section; 52…second heating section; 61…first plane; 62…second plane; 63, 64, 65, 66…heating rollers; F…conveying direction.

Claims

1. A transfer apparatus characterized by comprising: have: The first roll body has a first transfer sheet that has formed a first image using sublimation ink; The second roll body has a second transfer sheet wound with a second image formed using sublimation ink; A third roll body is wound with a piece of fabric for transferring the first image onto the first surface and the second image onto the second surface; The conveying unit conveys the three-layer sheet, which is sandwiched between the first transfer sheet and the second transfer sheet, along the conveying direction and passes the three-layer sheet through the transfer area. A first heating section heats the three-layer sheet from the first transfer sheet side in the transfer area; The second heating section heats the three-layer sheet from the side of the second transfer sheet in the transfer area.

2. The transfer apparatus as described in claim 1, characterized in that, It includes a pressure application section that applies pressure to the three-layer sheet located in the region heated by the first heating section and the second heating section in a direction that brings them into close contact with each other.

3. The transfer apparatus as described in claim 2, characterized in that, The first heating unit has an outer surface of a cylindrical body, and heats the three-layer sheet that is in surface contact with the outer surface while being conveyed. The second heating section heats the three-layer sheet in a manner that it is located on the opposite side to the first heating section.

4. The transfer apparatus as described in claim 3, characterized in that, The second heating element heats the three-layer sheet in a non-contact manner through radiant heat.

5. The transfer apparatus as described in claim 3, characterized in that, The second heating section consists of multiple heating rollers that heat the three-layer sheet while in contact with and rotating it.

6. The transfer apparatus as described in claim 2, characterized in that, The first heating unit has an outer surface of a cylindrical body, and heats the three-layer sheet that is in surface contact with the outer surface while being conveyed. The second heating element heats the three layers at a different location than the first heating element. The pressure application section for the different positions of the three-layer sheet is a pressure roller that applies the pressure to the three-layer sheet from the side opposite to the second heating section.

7. The transfer apparatus as described in claim 6, characterized in that, In addition to heating the three-layer sheet at a different location than the first heating section, the second heating section also has a structure that heats the three-layer sheet at a location opposite to the first heating section.

8. The transfer apparatus as described in claim 2, characterized in that, The first heating element has a first plane that contacts the three-layer sheet while moving along the conveying direction. The second heating element has a second plane that contacts the three-layer sheet while moving along the conveying direction. The first plane and the second plane also serve as the pressure application part.

9. The transfer apparatus as described in claim 2, characterized in that, At least one of the first heating part and the second heating part can be disassembled and assembled.

10. The transfer apparatus according to any one of claims 1 to 9, characterized in that, The device includes a control unit capable of handling changes to at least one of the heating temperatures of the first heating unit and the second heating unit.

11. A transfer method, characterized in that, It is a transfer method implemented by a transfer device. The transfer device includes: The first roll body has a first transfer sheet that has formed a first image using sublimation ink; The second roll body has a second transfer sheet wound with a second image formed using sublimation ink; A third roll body is wound with a piece of fabric for transferring the first image onto the first surface and the second image onto the second surface; The conveying unit conveys the three-layer sheet, which is sandwiched between the first transfer sheet and the second transfer sheet, along the conveying direction and passes the three-layer sheet through the transfer area. The heating element heats the three layers of sheets. In the transfer method, The three-layer sheet being transported is heated from the first transfer sheet side, and further heated from the second transfer sheet side as well, to perform transfer printing.

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