JP2009137239A - Intermediate transfer recording medium, its manufacturing method, film transfer sheet, its manufacturing method, and image forming method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intermediate transfer recording medium by which a frame-less printed matter, for which an image is formed on the total surface of the printing surface without generating a blank on the edge of the printed matter, can stably be prepared, and to provide its manufacturing method, and an image forming method. <P>SOLUTION: This intermediate transfer recording medium 1 keeps a sheet base material on which a resin layer is installed overlying a transparent sheet on which a dye accepting layer is installed, and the resin layer is separated from the transparent sheet, and the transparent sheet having the dye accepting layer transferred to a body to be transferred. The intermediate transfer recording medium 1 is under a continuous configuration in the length direction. A half-cut process 6 is applied to the transparent sheet section including the dye accepting layer. On at least one side in the flowing direction of the intermediate transfer recording medium 1, holes 7 which engage with protuberances being installed on a carrying member are formed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an intermediate transfer recording medium and a film transfer sheet, and in particular, it is possible to stably produce a borderless printed material in which an image is formed on the entire surface of a printing screen without causing a margin in the printed material. Intermediate transfer recording medium and method for manufacturing the same, film transfer sheet capable of stably covering the entire surface of the printing screen of the transferred body with the transparent sheet in accordance with the size of the transferred body, and the manufacturing method thereof, The present invention also relates to an image forming method using an intermediate transfer recording medium or a film transfer sheet.

  Conventionally, various thermal transfer methods are known. In this method, in the thermal transfer sheet in which a colored transfer layer is formed on a base sheet, the above-mentioned coloring is performed by heating the back surface of the thermal transfer sheet with a thermal head or the like. The transfer layer is thermally transferred to the surface of the thermal transfer image receiving sheet to form an image. This thermal transfer method is roughly classified into a sublimation transfer type and a thermal melt transfer type depending on the configuration of the colored transfer layer. Both types can form full-color images.For example, yellow, magenta, and cyan, if necessary, black or three-color thermal transfer sheets are prepared, and the surface of the same thermal transfer image-receiving sheet has each color. A full-color image can be formed by superimposing images and performing thermal transfer. Due to the development of various hardware and software related to multimedia, this thermal transfer method is a full color hard copy system for computer graphics, still images by satellite communications, and analog images such as digital images and video represented by CD-ROM and others. As the market is expanding.

  The specific application of the thermal transfer image receiving sheet by this thermal transfer method is diverse. Typical examples include printing proofs, image output, CAD / CAM design and design output, various medical analytical instruments such as CT scans and endoscopic cameras, measuring instrument output applications and instant As an alternative to photos, output of ID cards, ID cards, credit cards, other face photos on cards, etc., as well as composite photos and amusement photos at amusement facilities such as amusement parks, game centers, museums, and aquariums Etc.

  However, when an image is formed with a melt transfer type thermal transfer sheet, there is a weak point that lacks durability against friction, and when an image is formed with a sublimation transfer type thermal transfer sheet, a gradation image such as a face photograph is precisely obtained. However, unlike ordinary printing ink images, there are weaknesses that lack durability such as weather resistance, friction resistance, and chemical resistance. As a solution to this, a protective layer thermal transfer sheet having a thermal transfer resin layer is superimposed on the thermal transfer image, and the thermal transfer resin layer having transparency is transferred using a thermal head, a heating roll, etc. Has been made to form. For example, it has been proposed to transfer and form a protective layer on a thermal transfer image as described in Patent Documents 1 and 2 using a protective layer thermal transfer sheet.

  With the diversification of uses of the above-mentioned thermal transfer image receiving sheet, there is an increasing demand for forming a thermal transfer image on an arbitrary object. Normally, a dedicated thermal transfer image-receiving sheet provided with a receiving layer on a base material is used as an object for forming a thermal transfer image. However, there is a limitation on the base material and the like, and the acceptance as shown in Patent Document 3 etc. An intermediate transfer recording medium with a layer that can be peeled off on a substrate. Using a thermal transfer sheet that has a dye layer on its receiving layer, the dye is transferred to form an image, and then the intermediate transfer recording medium is heated. A method of transferring the receiving layer onto an arbitrary transfer target has been proposed.

  Even in the system using the above intermediate transfer recording medium, the image formed product finally obtained still lacks the image durability described above. On the other hand, Patent Documents 4 and 5 disclose a transparent base material provided with a receiving layer and an intermediate transfer recording medium in which a sheet base material is detachably laminated via a resin layer. A highly durable intermediate transfer recording medium has been proposed in which an image surface and a transferred body are brought into contact with the transferred body together with the substrate to transfer the image.

  In Patent Document 5, an image is formed on a portion (patch portion) surrounded by half-cut processing of an intermediate transfer recording medium, a detection mark included in the intermediate transfer recording medium is detected, and the position of the patch portion is aligned with a transfer target. The transfer is described in the examples. However, in the conventional intermediate transfer recording medium, it is difficult in manufacturing to completely match the position of the detection mark and the patch portion, and considering the manufacturing tolerance, when transferring the patch portion to the transfer body, Transfer was possible only in an area smaller than the size. Therefore, there is a problem that a margin is generated at an end (edge) portion of the transfer target.

  Further, even if the detection mark and the patch part are completely aligned, the detection mark included in the intermediate transfer recording medium is detected, and the position of the transferred patch part and the transfer target is completely the same. Have difficulty. That is, the conveyance accuracy is not high due to factors such as slippage between the roller for conveyance and the intermediate transfer recording medium, and difficulty in keeping the conveyance speed of the intermediate transfer recording medium wound up on the bobbin constant. This is considered to be the cause. There are many demands to form an image on the entire print screen, that is, to obtain a borderless printed material in the printed products that are the various output products described above, and there is a blank at the edge of the outer side of the image-formed transfer object. There is a strong demand to eliminate the occurrence of this.

JP 2000-80844 A JP 2000-71626 A JP-A-62-238791 JP 2000-238439 A JP 2002-337457 A

  Therefore, the present invention has been made in view of such a situation, and can stably produce a borderless printed material in which an image is formed on the entire surface of the printing screen without causing a margin on the edge of the printed material. It is an object of the present invention to provide an intermediate transfer recording medium, a method for producing the same, and an image forming method. Further, the intermediate transfer recording medium has a form in which a sheet substrate provided with a resin layer and a transparent sheet provided with a receiving layer are peeled between the resin layer and the transparent sheet. Even in a film transfer sheet in which the layer is replaced with an adhesive layer, the transparent sheet portion including the adhesive layer is subjected to a half-cut process, and the transparent sheet portion matches the size of the transfer target body, so An object of the present invention is to provide a film transfer sheet capable of stably covering the entire screen with a transparent sheet, a method for producing the same, and an image forming method.

  In the intermediate transfer recording medium of the present invention, as claimed in claim 1, a sheet base material provided with a resin layer and a transparent sheet provided with a dye-receiving layer are laminated and peeled between the resin layer and the transparent sheet. In an intermediate transfer recording medium in which a transparent sheet with a dye receiving layer is transferred to a transfer body, the intermediate transfer recording medium is in a continuous form in the length direction, and the transparent sheet portion including the dye receiving layer is subjected to a half-cut treatment. And at least one side in the flow direction of the intermediate transfer recording medium is formed with a hole that meshes with a protrusion provided on a member for conveyance. According to a second aspect of the present invention, the holes are continuously formed at regular intervals in the flow direction of the intermediate transfer recording medium. As a result, the patch portion in the form in which the dye-receiving layer on which the thermal transfer image is formed and the transparent sheet are laminated on the transfer body stably creates a borderless print that matches the size of the transfer body. be able to.

  According to a third aspect of the present invention, there is provided a method for producing an intermediate transfer recording medium, wherein a sheet base material provided with a resin layer and a transparent sheet provided with a dye-receiving layer are laminated and peeled between the resin layer and the transparent sheet. In the method for producing an intermediate transfer recording medium, the intermediate transfer recording medium is processed in a half-cut process on the transparent sheet portion including the dye receiving layer in a continuous form in the length direction, and in the flow direction of the intermediate transfer recording medium. It is characterized in that at least one side is simultaneously processed to form a hole for meshing with a protrusion provided on a member for conveyance. As a result, since the half-cut processing and the hole forming process are performed simultaneously, the intermediate transfer recording medium can be continuously manufactured in a state in which the interval between the positions of the half-cut and the hole is always stable.

  According to a fourth aspect of the present invention, there is provided an image forming method according to the fourth aspect, wherein the intermediate transfer recording medium according to the first or second aspect is used, and the size of the patch portion which is an area surrounded by the half-cut process is equal to or larger than the size. Now, a thermal transfer image is formed on the dye-receiving layer, and the protrusions of the conveying member are meshed with the holes provided in the intermediate transfer recording medium so that the image-formed patch portion and the transfer target are aligned. In other words, only the patch portion is transferred in accordance with the size of the transfer object, and the dye-receiving layer formed with an image is covered with a transparent sheet. As a result, the patch portion in the form in which the dye-receiving layer on which the thermal transfer image is formed and the transparent sheet are laminated on the transfer body stably creates a borderless print that matches the size of the transfer body. be able to. In addition, since the entire surface of the thermal transfer image is covered with the transparent sheet, a printed matter having excellent durability of the thermal transfer image can be obtained even under severe use conditions.

  According to a fifth aspect of the present invention, in the above image forming method, when the thermal transfer image is formed on the dye receiving layer, the protrusion of the conveying member is engaged with the hole provided in the intermediate transfer recording medium, and the size is equal to the size of the patch portion. A thermal transfer image is formed on the dye-receiving layer with the above size. As a result, a thermal transfer image can be formed at an accurate position of the patch portion, and a borderless printed material that matches the size of the transfer target can be stably produced with the transparent sheet coated.

  The film transfer sheet according to the present invention is the film transfer sheet according to claim 6, wherein a sheet base material provided with a resin layer and a transparent sheet provided with an adhesive layer are laminated and peeled between the resin layer and the transparent sheet. In a film transfer sheet to which a transparent sheet with an adhesive layer is transferred, the film transfer sheet has a continuous form in the length direction, and the transparent sheet portion including the adhesive layer is subjected to a half-cut treatment, and the film At least one side of the transfer sheet in the flow direction is formed with a hole that meshes with a protrusion provided on a member for conveyance. According to a seventh aspect of the present invention, the holes are formed at regular intervals in the flow direction of the film transfer sheet. As a result, the patch portion in the form in which the adhesive layer and the transparent sheet are laminated on the transfer object previously formed on the thermal transfer image is covered with the protective film of the transparent sheet that matches the size of the printing screen of the transfer object. It is possible to stably produce printed images.

  The method for producing a film transfer sheet according to the present invention includes, as claimed in claim 8, a film transfer in which a sheet base material provided with a resin layer and a transparent sheet provided with an adhesive layer are laminated and peeled between the resin layer and the transparent sheet. In the sheet manufacturing method, the film transfer sheet is continuously processed in the length direction, and the transparent sheet portion including the adhesive layer is processed into a half-cut treatment and conveyed to at least one side in the flow direction of the film transfer sheet. It is characterized in that a hole forming process for meshing with a protrusion provided on a member for the purpose is simultaneously performed. As a result, since the half-cut process and the hole forming process are simultaneously performed, the film transfer sheet can be continuously manufactured in a state where the interval between the positions of the half-cut and the hole is always stable.

  In the image forming method of the present invention, as claimed in claim 9, using the transfer target on which an image has been formed in advance and the film transfer sheet according to claim 6 or 7, By engaging the protrusions of the conveying member and aligning the patch part, which is the area surrounded by the half-cut process, with the transferred object, only the patch part matches the size of the transferred object. The transferred object that has been transferred and imaged is covered with a transparent sheet. As a result, since the entire surface of the transfer target image-formed in advance is covered with the transparent sheet, a printed material excellent in various durability can be obtained even under severe use conditions.

By using the intermediate transfer recording medium of the present invention and the transfer target, a marginless print is stably formed with an image formed on the entire print screen of the transfer target without causing a margin on the edge of the print. can do. Furthermore, since the transparent sheet portion matches the size of the transfer object and the entire surface of the transfer object is covered with the transparent sheet, it has excellent durability for thermal transfer images even under harsh conditions. A print is obtained.
In addition, when the film transfer sheet of the present invention and an image-formed transfer object are used, the transparent sheet portion matches the size of the transfer object, and the entire printing screen of the transfer object is covered with the transparent sheet. Therefore, a printed matter having excellent durability of various thermal transfer images can be obtained even under severe use conditions. In addition, when forming a thermal transfer image on the above-mentioned transferred material, the image is formed on the entire surface of the transferred image by forming an image on the entire surface of the dye receiving surface of the transferred material without generating a blank space. It is possible to stably produce a borderless print.

  FIG. 1 is a schematic plan view showing an embodiment of an intermediate transfer recording medium 1 of the present invention, which is a long intermediate transfer recording medium 1 that is continuous in the length direction. On both sides in the flow direction, holes 7 are formed for engaging with protrusions provided on a member for conveyance. The formed holes 7 are continuously formed at a constant interval (a) in the flow direction of the intermediate transfer recording medium 1. Further, the patch portion 8 which is the half-cut process 6 and is surrounded by the half-cut process 6 is continuously formed in the flow direction of the intermediate transfer recording medium 1. Further, the thermal transfer image 9 is formed on the dye receiving layer with a size larger than the size of the patch portion 8. Although the region of the thermal transfer image 9 formed in FIG. 1 is shown as being larger than the size of the patch portion 8, it is also possible to form a thermal transfer image with the same size that matches the size of the patch portion 8. The present invention stipulates that the thermal transfer image is formed on the dye-receiving layer with a size equal to or larger than the size of the patch portion. The “size equal to or larger” means the size of the patch portion. As shown in FIG. 1, it means that it is about 1 mm to 10 mm larger than the size of the patch portion, with one side interval, and the size smaller than the size of the patch portion is excluded. It is.

  FIG. 1 shows that the holes 7 that mesh with the protrusions provided on the conveying member are continuously formed at regular intervals (a) in the flow direction of the intermediate transfer recording medium 1. Not limited to this, as shown in FIG. 12, adjacent holes (hole 91 and hole 92) are formed at a distance d, and hole 92 and hole 93 are formed at a distance (cd) and are close to each other. It is also possible to form the two holes continuously at a pitch of the interval c. In any case, it is a condition that a hole is formed on at least one side in the flow direction of the intermediate transfer recording medium, and the position of the hole is meshed with a protrusion provided on a member for conveyance. What is necessary is just to take the formation position of the hole corresponding to the difference in the position of a projection part.

  FIG. 2 is a schematic cross-sectional view of the intermediate transfer recording medium shown in FIG. 1 when cut in the directions indicated by B and C. On one surface of the sheet substrate 2, a resin layer 3, a transparent sheet 4, In the intermediate transfer recording medium 1 having a structure in which the dye receiving layer 5 is laminated in order, a half cut process 6 is performed on the transparent sheet 4 including the dye receiving layer 5, and both sides of the intermediate transfer recording medium 1 in the flow direction. A hole 7 is formed that meshes with a protrusion provided on a member for conveyance. The intermediate transfer recording medium 1 is peeled between the resin layer 3 and the transparent sheet 4, and the patch portion 8 which is an area surrounded by the half-cut process 6 is provided with the dye receiving layer 5 on the transfer target. Further, the transparent sheet 4 is transferred with the thermal transfer image 9 formed. Further, a thermal transfer image 9 is formed on the dye receiving layer 5 with a size larger than the size of the patch portion 8 that is an area surrounded by the half-cut process 6. Although the area of the thermal transfer image 9 formed in FIG. 2 is shown as being larger than the size of the patch portion 8, it is also possible to form a thermal transfer image with the same size that matches the size of the patch portion 8.

  FIG. 3 is a diagram schematically illustrating the method for producing an intermediate transfer recording medium of the present invention. A long intermediate transfer recording medium 1 is wound up and sent out from a supply unit 11, via a guide roll and a processing unit 12. The upper part 13 is wound up. In this processing section 12, the intermediate transfer recording medium 1 is passed between the upper mold 16 to which the cutter blade 14 is attached and the base 17, and the upper mold 16 is moved up and down to include the dye receiving layer of the intermediate transfer recording medium 1. The half-cut process is performed on the transparent sheet portion, and the punch 15 is moved up and down between the punch 15 and the die 18 in the same processing portion 12 so that the punch 15 meshes with the concave portion of the die 18 so that the intermediate portion The transfer recording medium 1 is processed to form a hole for meshing with a protrusion provided on a member for conveyance. However, the half-cut process and the hole forming process are performed simultaneously. In FIG. 3, half-cut processing and hole formation processing are performed by attaching a cutter blade 14 for half-cut processing and a punch 15 for hole processing for meshing with the protrusion to the same upper die 16. However, the present invention is not limited to this, and the half-cut processing unit and the hole-forming unit can be simultaneously performed by a configuration in which the half-cut processing unit and the hole processing unit are connected. FIG. 3 shows an intermediate transfer recording medium manufacturing apparatus 10 that performs half-cut processing and hole formation.

  FIG. 4 is a diagram schematically illustrating a method of forming an image using the intermediate transfer recording medium and the transfer target according to the present invention. The half-cut processing and the protrusions provided on the conveying member are illustrated. The intermediate transfer recording medium 1 that has been processed to form a hole for meshing is fed from a long take-up supply unit 21, passes through an image forming unit 22, a transfer unit 25 of a patch unit, and then reaches a winding unit 28. Is wound up. The image forming unit 22 includes a thermal head 23 and a platen roll 24, and a thermal transfer sheet 33 provided with a dye layer containing a sublimation dye on a substrate, and the intermediate transfer recording medium 1 are dyes of the thermal transfer sheet 33. In a state where the layer and the dye receiving layer of the intermediate transfer recording medium 1 are in contact with each other, the thermal transfer sheet 33 and the intermediate transfer recording medium 1 are pressed between the thermal head 23 and the platen roll 24, and The thermal transfer sheet 33 is heated in an image form, and a thermal transfer image is formed on the dye receiving layer of the intermediate transfer recording medium 1. In the image forming unit 22, the intermediate transfer recording medium 1 is stretched between the guide roll 29 and the guide roll 30, and the projections 34 and 35 are formed on the guide roll 29. Projections 36 and 37 are formed on the surface. In the present invention, the guide roll having protrusions such as the guide rolls 29 and 30 is a member for carrying.

  In the illustrated example, the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 34, and the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 36, so that the intermediate transfer recording medium 1 is not slackened. Then, image formation is performed with high conveyance accuracy. The guide roll 29 is rotated clockwise so that the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 35 next from the state shown in the figure, and the guide roll 30 is rotated clockwise and is illustrated. From the state, the intermediate transfer recording medium 1 is transported with high dimensional accuracy without slipping by the guide roll so that the hole of the intermediate transfer recording medium 1 is next engaged with the protrusion 37. Although not shown, when the dye is thermally transferred from the dye layer of the thermal transfer sheet to the dye receiving layer of the intermediate transfer recording medium by heating the thermal head, detection marks are formed on the thermal transfer sheet at regular intervals. The detection mark is detected by a sensor, and a thermal transfer image can be formed at an accurate position corresponding to a patch portion that is an area surrounded by a half cut process of the intermediate transfer recording medium. In this manner, a thermal transfer image can be formed on the dye-receiving layer with a size equal to or larger than the size of the patch portion that is the region surrounded by the half-cut process of the intermediate transfer recording medium.

  The intermediate transfer recording medium 1 on which the thermal transfer image is formed is conveyed from the image forming unit 22 to the transfer unit 25 of the patch unit. The transfer unit 25 includes a heat roll 26 and a platen roll 27, and the intermediate transfer recording medium 1 on which the thermal transfer image is formed and the transfer target 42 are dye receivers on which the thermal transfer image of the intermediate transfer recording medium 1 is formed. The intermediate transfer recording medium 1 and the transfer target 42 are pressed between the heat roll 26 and the platen roll 27 in a state where the layer and the transfer target 42 are in contact with each other, and the heating roll 26 heats the layer. The image-formed patch portion of the intermediate transfer recording medium 1 is peeled off between the resin layer and the transparent sheet of the intermediate transfer recording medium, and transferred to the transfer target 42 in the state of a transparent sheet with a dye receiving layer. Is done. In the transfer unit 25, the intermediate transfer recording medium 1 is stretched between the guide roll 31 and the guide roll 32, and projections 38 and 39 are formed on the guide roll 31. The protrusions 40 and 41 are formed.

  In the illustrated example, the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 39, and the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 41, so that the intermediate transfer recording medium 1 is not slackened. The patch portion can be transferred in conformity with the size of the transfer object with high conveyance accuracy. The guide roll 31 is rotated clockwise so that the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 38 next from the state shown in the figure, and the guide roll 32 is rotated clockwise and is illustrated. From the state, the conveyance of the intermediate transfer recording medium 1 is performed with high dimensional accuracy and accuracy without slipping by the guide roll so that the hole of the intermediate transfer recording medium 1 is engaged with the protrusion 40 next. Then, the image-formed patch portion of the intermediate transfer recording medium 1 can be accurately aligned with the transferred body 42, and only the patch portion is transferred in accordance with the size of the transferred body 42. be able to. As a result, a borderless print can be formed on the entire surface of the printing screen in which the dye-receiving layer formed with an image is covered with a transparent sheet. In FIG. 4, the image forming unit 22 and the transfer unit 25 of the patch unit are shown in a continuous configuration in-line, but the image forming unit 22 and the transfer unit 25 of the patch unit may be offline.

  Further, according to the present invention, in the transfer portion 25 of the patch portion, the protruding portion of the conveying member is always meshed with the hole provided in the intermediate transfer recording medium, and the position of the patch portion on which the image is formed and the transfer target are determined. In the image forming unit 22, the holes of the intermediate transfer recording medium are meshed with the projections of the conveying member and conveyed by transferring only the patch portion in accordance with the size of the transfer target. This is not a requirement. It is also possible to read a detection mark provided on a conventionally known intermediate transfer recording medium, convey it, and form a thermal transfer image at an accurate position on the patch portion. 4 shows not only an image forming method but also an image forming apparatus 20 having a thermal transfer image forming unit 22 and a patch transfer unit 25.

  FIG. 5 shows an example of a printed matter obtained by the image forming method using the intermediate transfer recording medium of the present invention. The illustrated printed matter 50 is formed on the entire surface of the printing screen of the transfer target 42 in a form in which the dye receiving layer 5 on which the thermal transfer image 9 is formed and the transparent sheet 4 are laminated on the transfer target 42. In other words, the print product has no margin and no margin at the outer edge of the printing screen of the transfer object. Note that, in the portion where the dye receiving layer 5 and the transparent sheet 4 are laminated in FIG. 5, the patch portion in the region surrounded by the half-cut process peels off from the intermediate transfer recording medium, and matches the size of the transfer target 42. Then it was transcribed. The patch portion has a size equal to or larger than the size of the patch portion, and the thermal transfer image is formed on the dye receiving layer, so there is no margin at the edge of the outer side of the printing screen of the transfer object. Thus, a borderless print can be formed.

  FIG. 6 is a schematic plan view showing an example of a printed matter obtained by the image forming method using the intermediate transfer recording medium of the present invention. The illustrated printed matter 50 is a borderless printed matter in which the thermal transfer image 9 is formed on the entire surface of the transferred image on the transfer body, and there is no margin at the outer edge of the transferred image on the transfer object. On the other hand, FIG. 7 is a schematic plan view showing an example of a printed material in which a conventional intermediate transfer recording medium is used and a thermal transfer image is formed on a transfer target. In the illustrated printed matter 50, the thermal transfer image 9 is formed, but a margin 51 is generated around the outer side (edge) of the transfer target. FIG. 13 shows a printed product 50 in which a conventional intermediate transfer recording medium is used and the size of the patch portion 8 and the size of the transfer target 42 are the same, and a thermal transfer image is formed on the transfer target. An example is shown in schematic plan view. In the illustrated printed matter 50, the transfer target 42 and the patch portion 8 on which the thermal transfer image 9 is formed are not coincident with each other and transferred, and a margin 51 is generated. In contrast, the patch portion 8 protrudes from the transfer body 42.

  In FIGS. 1 and 2 and the like, the half transfer process 6 of the intermediate transfer recording medium 1 is performed, but only the patch portion 8 that is the area surrounded by the half cut process 6 is left on the intermediate transfer recording medium 1. The dye receiving layer and the transparent sheet except for the patch part can be peeled off and removed.

  FIG. 8 is a schematic plan view showing one embodiment of the film transfer sheet 61 of the present invention, which is a long film transfer sheet 61 that is continuous in the length direction. Holes 67 for meshing with protrusions provided on a member for transporting are formed on both sides. The formed holes 67 are continuously formed at a constant interval (b) in the flow direction of the film transfer sheet 61. Further, the patch portion 68 that is the half-cut process 66 and is surrounded by the half-cut process 66 is continuously formed in the flow direction of the film transfer sheet 61. In FIG. 8, the hole 67 that meshes with the protrusion provided on the conveying member is shown to be formed continuously at regular intervals (b) in the flow direction of the film transfer sheet 61. Not limited to this, as described in the description of the intermediate transfer recording medium, adjacent holes (hole 91 and hole 92) as shown in FIG. It is also possible to form two adjacent holes formed at a distance (cd) continuously at a pitch of the distance c. In any case, a hole is formed on at least one side in the flow direction of the film transfer sheet, and the position of the hole is to be engaged with a protrusion provided on a member for conveyance. What is necessary is just to take the formation position of the hole corresponding to the difference in the position of a part.

  FIG. 9 is a schematic cross-sectional view of the film transfer sheet shown in FIG. 8 cut in the directions indicated by D and E. The resin layer 63, the transparent sheet 64, and the adhesive are bonded to one surface of the sheet base material 62. In the film transfer sheet 61 having a configuration in which the layers 65 are laminated in order, the transparent sheet 64 part including the adhesive layer 65 is subjected to a half-cut process 66, and the film transfer sheet 61 is transported to both sides in the flow direction. A hole 67 that meshes with a protrusion provided on the member is formed. The film transfer sheet 61 is peeled between the resin layer 63 and the transparent sheet 64, and a patch portion 68, which is an area surrounded by a half-cut process 66, is formed on the dye receiving surface of the image-formed transfer target. The transparent sheet 64 is transferred with the adhesive layer 65.

  Moreover, with reference to FIG. 3, the manufacturing method and manufacturing apparatus of the film transfer sheet of this invention are demonstrated roughly. The intermediate transfer recording medium 1 shown in FIG. 3 is simply replaced with a film transfer sheet, and other conditions are the same as those of the intermediate transfer recording medium. A long film transfer sheet is wound from the supply unit 11 by winding, and is wound by the winding unit 13 via the guide roll and the processing unit 12. In this processing section 12, the film transfer sheet is passed between the upper mold 16 to which the cutter blade 14 is attached and the pedestal 17, and the upper mold is moved up and down to include the adhesive layer of the film transfer sheet and half the transparent sheet section. Cut processing is performed, and the punch 15 is moved up and down between the punch 15 and the die 18 in the same processing portion 12, and the punch 15 is engaged with the concave portion of the die 18, and is conveyed to the film transfer sheet. The hole is formed to engage with the protrusion provided on the member. However, the half-cut process and the hole forming process are performed simultaneously.

  FIG. 10 is a diagram schematically illustrating a method of forming an image using the film transfer sheet of the present invention and a transfer target. A film transfer sheet 61 that has been subjected to a half-cut process and a hole forming process for meshing with a protrusion provided on a member to be conveyed is sent out from a supply unit 71 in a long winding state, It is wound up at the upper part 75 through the transfer part 72 of the patch part. The transfer portion 72 of the patch portion includes a heat roll 73 and a platen roll 74. The film transfer sheet 61, the transfer target 82 on which an image is formed in advance, the adhesive layer of the film transfer sheet 61, and the transfer target. The film transfer sheet 61 and the transfer target 82 are pressed between the heat roll 73 and the platen roll 74 in a state where they are in contact with the surface on which the thermal transfer image 82 is formed, and the heat roll 73 heats the film. Then, the patch portion of the film transfer sheet 61 is peeled off between the resin layer of the film transfer sheet and the transparent sheet, and transferred to the image-transferred member 82 in the state of the transparent sheet with the adhesive layer. Further, in the transfer portion 72, the film transfer sheet 61 is stretched between the guide roll 76 and the guide roll 77, and projections 78 and 79 are formed on the guide roll 76. Projections 80 and 81 are formed.

  In FIG. 10, the holes of the film transfer sheet 61 are engaged with the protrusions 79, and the holes of the film transfer sheet 61 are engaged with the protrusions 81, so that the film transfer sheet 61 is not slackened. In a high state, the patch portion can be transferred in accordance with the size of the transfer target.

  The guide roll 76 is rotated clockwise, so that the hole of the film transfer sheet 61 is engaged with the protrusion 78 next, and the guide roll 77 is rotated clockwise so that the illustrated state is shown. Then, the film transfer sheet 61 is conveyed with high dimensional accuracy and accurately without slipping by the guide roll so that the hole of the film transfer sheet 61 is engaged with the protrusion 80 next. Then, the patch portion of the film transfer sheet 61 and the image-formed transfer target 82 can be accurately aligned, and only the patch portion is transferred in accordance with the size of the transfer target 82. Can do. As a result, the object to be transferred is obtained by covering the entire surface of the printing screen with a transparent sheet via an adhesive layer. It is a borderless print that is imaged on the entire surface of the print screen. 10 shows not only an image forming method but also an image manufacturing apparatus 70 having a transfer part 72 of a patch part.

  FIG. 11 shows an example of a printed matter obtained by the image forming method using the film transfer sheet of the present invention. The illustrated print 90 has a form in which an image 83 is formed on a transfer target 82 and an adhesive layer 65 and a transparent sheet 64 are laminated thereon. This is an example of a borderless printed material in which an image of the transfer object 82 is formed, that is, there is no margin at the outer edge of the transfer image on the transfer object. Note that, in the portion where the adhesive layer 65 and the transparent sheet 64 in FIG. 11 are laminated, the patch portion in the region surrounded by the half-cut processing peels off from the film transfer sheet, and matches the size of the transfer target 82. It has been transcribed. Since an image is formed on the entire surface of the transfer object printing screen and the size of the transfer object, which is the printing screen, matches the transferred patch portion, the outside of the transfer object printing screen. A borderless print with no margin at the end of the side is covered with a transparent sheet over the entire surface of the print screen. The borderless printed material is a plan view as shown in FIG. 6 described in the case of the intermediate transfer recording medium.

On the other hand, the conventional film transfer sheet shown in FIG. 14 is obtained by transferring the patch portion of the film transfer sheet onto the thermal transfer image on the surface of the transfer target formed with the image of thermal transfer. An example of the printed material is shown in a schematic plan view. In the illustrated printed matter 90, the thermal transfer image 83 is formed on the entire surface of the transfer target 82, but the entire thermal transfer image 83 is not covered with the patch portion 68, and the image-formed transfer target 82 of the transfer target 82 is formed. The periphery (69) around the two sides (edges) is not protected by the patch portion 68. In the illustrated printed matter 90, the transferred object 82 on which the thermal transfer image is formed and the patch portion 68 do not coincide with each other and are transferred off, and around the two sides (edges) of the transferred object 82 (69). Is not covered with the patch portion 68, and the patch portion 68 protrudes from the transfer body 82 in a form that is in contrast to the size around the two sides (edges) (69).
In FIGS. 8 and 9, etc., the film transfer sheet 61 has been subjected to the half-cut process 66. However, only the patch portion 68, which is the area surrounded by the half-cut process 66, is left on the film transfer sheet 61. The part of the adhesive layer and the transparent sheet excluding the part can be peeled off and removed.

Hereinafter, each layer constituting the intermediate transfer recording medium 1 of the present invention will be described in detail.
(Sheet base material)
The sheet substrate 2 of the intermediate transfer recording medium used in the present invention is not particularly limited. For example, condenser paper, glassine paper, sulfuric acid paper, high-size paper, synthetic paper (polyolefin type, polystyrene type) ), Fine paper, art paper, coated paper, cast coated paper, wallpaper, backing paper, synthetic resin or emulsion impregnated paper, synthetic rubber latex impregnated paper, synthetic resin internal paper, paperboard, cellulose fiber paper, polyester, poly Acrylate, polycarbonate, polyurethane, polyimide, polyetherimide, cellulose derivative, polyethylene, ethylene-vinyl acetate copolymer, polypropylene, polystyrene, acrylic, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl butyral, nylon, polyether Films such as ether ketone, polysulfone, polyethersulfone, tetrafluoroethylene / perfluoroalkyl vinyl ether, polyvinyl fluoride, tetrafluoroethylene / ethylene, tetrafluoroethylene / hexafluoropropylene, polychlorotrifluoroethylene, polyvinylidene fluoride Is mentioned.

  The sheet substrate preferably has a thickness of 10 μm to 100 μm. If the sheet substrate is too thin, the so-called stiffness of the film transfer sheet obtained is lost, and the sheet transfer substrate cannot be conveyed by a thermal transfer printer, or curl and wrinkles occur on the film transfer sheet. Or On the other hand, if the sheet substrate is too thick, the resulting film transfer sheet will be too thick, and the force to drive and drive the thermal transfer printer will be too great, causing the printer to fail or not be transported normally.

(Resin layer)
The resin layer 3 provided on the sheet substrate can be formed of a pressure-sensitive adhesive layer, a simple adhesive layer, or an extrusion coating layer (EC). The pressure-sensitive adhesive layer can be formed using any conventionally known solvent-based or water-based pressure-sensitive adhesive. Examples of the adhesive include vinyl acetate resin, acrylic resin, vinyl acetate-acrylic copolymer, vinyl acetate-vinyl chloride copolymer, ethylene-vinyl acetate copolymer, polyurethane resin, natural rubber, chloroprene rubber, and nitrile rubber. Etc. The coating amount of the pressure-sensitive adhesive layer is generally about 8 to 30 g / m ² (solid content), and conventionally known methods, that is, methods such as gravure coating, gravure reverse coating, roll coating, comma coating, die coating, etc. Then, it is applied onto a substrate and dried to form an adhesive layer. Further, the adhesive strength of the pressure-sensitive adhesive layer is the peel strength between the transparent sheet and the pressure-sensitive adhesive layer, and is desirably in the range of about 5 to 1,000 gf / inch in the peeling method by 180 ° in accordance with JIS Z0237. It is preferable to select and use the kind of adhesive as described above and the coating amount so that the peel strength is within the above range when the adhesive layer is formed on the sheet base material. In order to provide a pressure-sensitive adhesive layer on a sheet substrate and to laminate the transparent sheet and the pressure-sensitive adhesive layer, methods such as dry lamination and hot melt lamination of the pressure-sensitive adhesive layer can be employed.

  For the simple adhesive layer, latex of acrylic resin such as styrene-butadiene copolymer rubber (SBR), acrylonitrile-butadiene copolymer rubber (NBR) or polyacrylate, rubber resin, waxes and a mixture thereof are used. Then, it is preferably performed on the sheet base material by a conventionally known coating method, and the transparent sheet and the simple adhesive layer are laminated by dry lamination while heating. And the simple adhesive layer after peeling a transparent sheet and a sheet | seat base material falls in adhesiveness, and a transparent sheet and a sheet | seat base material cannot be bonded together again. When such a simple adhesive layer is used, a primer layer may be provided between the sheet base material and the simple adhesive layer.

  Moreover, an EC layer can be provided on the sheet substrate as the resin layer of the present invention. The thermoplastic resin forming the EC layer is not particularly limited as long as it is a resin that does not essentially adhere to the transparent sheet and has an extrusion (extrusion) processing characteristic, but for a PET film generally used for a transparent sheet. In particular, a polyolefin-based resin having no essential adhesiveness and excellent workability is particularly preferable. Specifically, LDPE, MDPE, HDPE, PP resin, etc. can be used, and when these resins are extrusion coated, by using a mat roll as a cooling roll, the mat surface is transferred to the EC layer surface, A fine uneven shape can be formed, and opacity can be imparted to the EC layer. Further, an opaque EC layer can be formed by kneading and mixing a white pigment such as calcium carbonate or titanium oxide with the above-mentioned polyolefin resin. The EC layer does not need to be a single layer and may be formed of two or more layers. The peel strength from the transparent sheet can be adjusted by the processing temperature and the resin type during extrusion processing. Thus, simultaneously with extrusion processing of the EC layer on the sheet base material, the sheet base material and the transparent sheet can be laminated via the EC layer by so-called EC lamination.

When providing a resin layer on said sheet base material, a primer layer can be provided in the sheet base material surface, and the adhesiveness of a sheet base material and a resin layer can be improved. Further, instead of the primer layer, it is possible to subject the sheet base material surface to corona discharge treatment. For the primer layer, a coating solution is prepared by dissolving or dispersing polyester resin, polyacrylate resin, polyvinyl acetate resin, polyurethane resin, polyamide resin, polyethylene resin, polypropylene resin, etc. in a solvent. And it can apply | coat on a sheet | seat base material by methods, such as a gravure coat, a gravure reverse coat, a roll coat, a comma coat, and a die coat, and can form a primer by drying. The thickness of the primer layer is about 0.1 to 5 g / m ^{2 in} a dry state. The above primer layer can be similarly formed between the transparent sheet and the dye receiving layer.

(Transparent sheet)
The transparent sheet 4 used in the intermediate transfer recording medium of the present invention has a transparent sheet portion (transparent sheet with a dye receiving layer) cut at the half-cut portion as a boundary, and the dye is applied to the entire surface of the transfer object. In a state where the thermal transfer image is formed on the entire surface of the receiving layer, the transparent sheet portion is transferred, and the transparent sheet covers the thermal transfer image, and the transparent sheet functions as a protective film. Any one may be used as long as it has transparency and durability such as weather resistance, friction resistance, chemical resistance, and the like, for example, polyethylene having a thickness of about 0.5 to 100 μm, preferably about 10 to 40 μm. Terephthalate film, 1,4-polycyclohexylenedimethylene terephthalate film, polyethylene naphthalate film, polyphenylene sulfide film, polystyrene film, polypropylene film, polysulfone film, aramid film, polycarbonate film, polyvinyl alcohol film, cellophane, cellulose acetate, etc. A cellulose derivative, a polyethylene film, a polyvinyl chloride film, a nylon film, a polyimide film, an ionomer film, etc. are mentioned.

(Dye-receiving layer)
The dye receiving layer 5 formed on the transparent sheet can be formed directly on the transparent sheet or via a primer layer. The dye receiving layer has a function of receiving a color material transferred from a thermal transfer sheet by heating. In particular, in the case of a sublimation dye, it accepts and develops a color, and at the same time, re-sublimates the once received dye. It is desirable not to let it. An intermediate transfer recording medium is used to form a transfer image on the dye-receiving layer, and only the image-formed portion is re-transferred to the transfer medium to form an image. It is common to provide transparency so that an image transferred to a transfer medium can be clearly observed from above. However, it is possible to characterize the retransfer image by artificially making the dye-receiving layer cloudy or lightly colored.

  The dye receiving layer is generally composed mainly of a thermoplastic resin. Examples of the material for forming the dye receiving layer include polyolefin resins such as polypropylene, vinyl chloride-vinyl acetate copolymers, ethylene-vinyl acetate copolymers, halogenated polymers such as polyvinylidene chloride, polyvinyl acetate, Polyester resins such as acrylic esters, polystyrene resins, polyamide resins, copolymers of olefins such as ethylene and propylene and other vinyl monomers, cellulose resins such as ionomers and cellulose diacetates, polycarbonate resins, etc. Particularly preferred are polyester resins, vinyl chloride-vinyl acetate copolymers, and mixtures thereof.

  In sublimation transfer recording, a release agent is used in the dye receiving layer for the purpose of preventing fusion between the thermal transfer sheet having the colored transfer layer and the dye receiving layer of the intermediate transfer recording medium or a decrease in printing sensitivity during image formation. Can be mixed. Preferable release agents used in combination include silicone oil, phosphate ester surfactants, fluorine surfactants, and the like, among which silicone oil is desirable. As the silicone oil, modified silicone oils such as epoxy modification, vinyl modification, alkyl modification, amino modification, carboxyl modification, alcohol modification, fluorine modification, alkylaralkyl polyether modification, epoxy / polyether modification, and polyether modification are desirable.

One or more release agents are used. The amount of the release agent added is preferably 0.5 to 10 parts by mass with respect to 100 parts by mass of the dye-receiving layer forming resin. When the range of the addition amount is not satisfied, problems such as fusion of the sublimation type thermal transfer sheet and the dye receiving layer of the intermediate transfer recording medium or a decrease in transfer sensitivity to the transfer target may occur. By adding such a release agent to the dye receiving layer, the release agent bleeds out on the surface of the dye receiving layer after the transfer to form a release layer. Further, these release agents may be separately applied on the dye receiving layer without being added to the dye receiving layer. The dye-receptive layer is prepared by dissolving a resin as described above with a necessary additive such as a release agent on a transparent sheet in an appropriate organic solvent, or gravure a dispersion dispersed in an organic solvent or water. It is formed by applying and drying by a known forming means such as a coat, a gravure reverse coat, or a roll coat. In forming the dye-receiving layer, the dye-receiving layer may have an arbitrary coating amount, but is generally 1 to 50 g / m ² in a dry state. Such a dye-receiving layer is preferably a continuous coating, but may be formed as a discontinuous coating using a resin emulsion, a water-soluble resin, or a resin dispersion. Further, an antistatic agent may be coated on the dye-receiving layer in order to stabilize the conveyance of the thermal transfer printer.

(Peeling layer)
In both the intermediate transfer recording medium and the film transfer sheet of the present invention, a release layer can be provided between the transparent sheet and the resin layer in order to enhance the peelability when heated. However, when a release layer is provided, the release layer and the transparent sheet are peeled off, and in the case of an intermediate transfer recording medium, the transparent sheet with the dye receiving layer is transferred to the transfer target. Moreover, in the case of a film transfer sheet, it peels between a peeling layer and a transparent sheet, and a transparent sheet with an adhesive layer is transferred to a transfer target. The release layer is made of a binder resin. As the binder resin, known thermoplastic resins and thermosetting resins used in this field can be widely used.

  Examples of the thermoplastic resin include acrylic resins such as polymethacrylic acid, polymethacrylamide, polymethyl methacrylate, polyethyl methacrylate, and polybutyl acrylate; polyvinyl acetate, vinyl chloride-vinyl acetate copolymer And vinyl resins such as polyvinyl alcohol and polyvinyl butyral; and cellulose derivatives such as ethyl cellulose, nitrocellulose, and cellulose acetate. Examples of the thermosetting resin include unsaturated polyester resins, polyester resins, polyurethane resins, amino alkyd resins, and the like. These binder resins may be used alone or in combination of two or more. Among these binder resins, acrylic resins are preferable.

The release layer may contain a wax together with the binder resin. When the wax is contained, the scratch resistance and foil breakability of the release layer are improved. Examples of the wax include polyethylene wax, polyester wax, polystyrene powder, olefin powder, microcrystalline wax, carnauba wax, paraffin wax, Fischer-Tropsch wax, various low molecular weight polyethylene, wood wax, beeswax, whale wax, wool wax, Examples include shellac wax, candelilla wax, petrolactam, partially modified wax, fatty acid ester, and fatty acid amide. The wax is usually contained in the release layer in an amount of about 0.1 to 30% by mass, preferably about 0.1 to 10% by mass. As the means for forming the release layer, the same method as in the case of the dye receiving layer can be adopted, and the coating amount of the release layer is about 0.5 to 5 g / m ² (solid content), preferably 1. 0 to 2.5 g / m ² (solid content).

Next, each layer which comprises the film transfer sheet 61 of this invention is demonstrated in detail. However, the sheet base material 62, the resin layer 63, and the transparent sheet 64 are as described for the sheet base material 2, the resin layer 3, and the transparent sheet 4 constituting the intermediate transfer recording medium.
(Adhesive layer)
The adhesive layer 65 is for firmly bonding the transparent sheet to the transfer target, and the material thereof is a conventional material such as an acrylic resin, a urethane resin, an amide resin, an epoxy resin, a rubber resin, or an ionomer resin. Known adhesives can be widely used. As the means for forming the adhesive layer, the same method as in the case of the dye receiving layer can be adopted, and the coating amount of the adhesive layer is about 0.5 to 10 g / m ² (solid content), preferably 2. 0 to 3.0 g / m ² (solid content).

(Production method)
The method for producing the intermediate transfer recording medium or film transfer sheet of the present invention will be described below. Half-cut processing in a continuous form in the length direction, in the case of an intermediate transfer recording medium, in the transparent sheet part including the dye receiving layer, and in the case of a film transfer sheet, in the transparent sheet part including the adhesive layer And at least one side in the flow direction of the intermediate transfer recording medium or the film transfer sheet are simultaneously processed to form a hole for engaging with a protrusion provided on a member for conveyance.

(half cut)
As shown in FIGS. 2 and 9, a half cut is formed in the dye receiving layer 5 and the transparent sheet 4, or in the adhesive layer 65 and the transparent sheet 64. The shape of the half cut is shown in FIGS. 1 and 8 and is made to coincide with the entire size (size) of the printing screen (transfer surface) of the transfer object. Half cuts can be formed by inserting an intermediate transfer recording medium or film transfer sheet between the upper mold with a cutter blade and a pedestal and moving the upper mold up and down, a cylinder type rotary cutter method, There is no particular limitation as long as it is a method capable of half-cutting into a long continuous intermediate transfer recording medium (film transfer sheet). However, there are limitations on the conditions that can be performed simultaneously with the process of forming the holes for meshing with the protrusions described below.

(Hole formation)
Forming holes for meshing a long, ie, continuous, intermediate transfer recording medium or film transfer sheet in the length direction with a protrusion provided on a conveying member used mainly in an image forming apparatus Processing will be described. Through the intermediate transfer recording medium (film transfer sheet) between the punch and the die, the punch is moved up and down to form a hole in the intermediate transfer recording medium (film transfer sheet) so that the punch meshes with the concave portion of the die. be able to. Further, there are a method of forming holes by rotating a cylinder type punch wheel and a die wheel, a method of forming holes by heat treatment by a laser processing means, and the like. However, in any hole forming method, the hole processing unit and the half cut processing unit are integrated or connected, and it is necessary to perform the half cut processing and the hole processing at the same time.

  The reason why the half-cut process and the hole forming process for engaging with the protrusions are performed simultaneously is to keep the distance between the half-cut process part and the hole forming part constant. When forming an image, the projections provided on the conveying member (guide roll) are engaged with the holes. In the present invention, in the above description, the guide roller provided with the protrusion is used as an example to describe the protrusion of the conveying member. However, the conveying member is not limited to the guide roll, and the protrusion (pin) is not limited to the guide roller. It may be a belt or a tractor (pin belt or pin tractor). By engaging the holes of the intermediate transfer recording medium (film transfer sheet) with the protrusions of the conveying member, the intermediate transfer recording medium is free from slackness, improving the conveying accuracy and forming a thermal transfer image at the correct position. it can. In addition, the protrusion provided on the conveying member (guide roll) is engaged with the hole when the patch portion is transferred. As a result, there is no slack in the intermediate transfer recording medium, the conveyance accuracy is improved, the alignment between the intermediate transfer recording medium and the transfer object is made accurate, and heating / pressing such as a heat roll is performed at an accurate position. Is possible. As described above, the patch portion in the form in which the dye receiving layer on which the thermal transfer image is formed and the transparent sheet are laminated is matched with the size of the transfer target without losing the size of the transfer target. Can be created stably.

(Image forming method)
Hereinafter, the intermediate transfer recording medium of the present invention and an image forming method using the transfer target will be described. Using the above-described intermediate transfer recording medium of the present invention, a thermal transfer image is formed on the dye-receiving layer with a size equal to or larger than the size of the patch portion that is an area surrounded by the half-cut process, and the intermediate transfer recording The protrusions of the conveying member are engaged with holes formed in the medium, and the image-formed patch portion is aligned with the transfer target, so that only the patch portion matches the size of the transfer target. The dye-receiving layer that has been transferred and imaged is then coated with a transparent sheet. First, a thermal transfer image can be formed on the dye receiving layer by a conventionally known method with a size equal to or larger than the size of the patch portion of the intermediate transfer recording medium. For example, a detection mark provided on the intermediate transfer recording medium is read and conveyed, and a thermal transfer image is formed at an accurate position on the patch portion surrounded by the half-cut process.

  In addition, the thermal transfer image is formed on the intermediate transfer recording medium including the patch portion, as shown by the image forming unit 22 in FIG. 4, the protrusion of the guide roll (conveying member) is provided in the hole provided in the intermediate transfer recording medium. It is preferable to form a thermal transfer image on the dye-receiving layer by engaging the portions with a size equal to or larger than the size of the patch portion. In addition, the thermal transfer image formation on the intermediate transfer recording medium not only reads the detection mark provided by printing on the intermediate transfer recording medium and aligns the formation position of the thermal transfer image, but also provides holes provided in the intermediate transfer recording medium. It is possible to read using a transmission sensor or the like and use the hole as a detection mark for aligning the formation position of the thermal transfer image, and it is very effective without providing a detection mark in printing.

  The method for transferring the patch portion on which the thermal transfer image is formed to the transfer target is as follows. The intermediate transfer recording medium 1 and the transfer target 42 as shown in the transfer portion 25 of the patch portion in FIG. A method of pressurizing and heating between platen rolls 27, or a method of heating and pressurizing by passing an intermediate transfer recording medium and a transfer medium between a heating plate and a flat plate having a size corresponding to a patch portion (hot stamping method) ) Etc. can be used. However, in any of the above-described methods for transferring the patch portion on which the thermal transfer image is formed to the transfer target, the hole of the intermediate transfer recording medium is engaged with the protrusion of the conveying member (guide roll), and the The patch portion is transferred in conformity with the size of the transfer medium with high conveyance accuracy without causing slack or the like in the transfer recording medium 1.

  Each step of forming the thermal transfer image on the portion including the patch portion of the intermediate transfer recording medium and transferring the patch portion on which the thermal transfer image is formed to the transfer target is performed in-line as shown in FIG. It is preferable to carry out continuously. Not only can it be manufactured efficiently, it can form a thermal transfer image at the exact position of the patch part, and can transfer the patch part to match the size of the transfer target, and the thermal transfer image on a transparent sheet This is because it is possible to stably produce a borderless printed material coated with a film.

  Next, the film transfer sheet of the present invention and an image forming method using the transfer target will be described. A thermal transfer image is formed on the dye-receiving surface of the transfer object, and the image-formed transfer object and the film transfer sheet are used to project the protrusions of the conveying member in the holes provided in the film transfer sheet. The patch part, which is the area surrounded by the half-cut process, is aligned with the transferred object, and only the patch part is transferred in accordance with the size of the transferred object to form an image. The dye receiving surface of the transferred object is covered with a transparent sheet. First, an image is formed on the entire surface of a dye receiving surface of a transfer object by a conventionally known method. Alternatively, an image is formed so that a margin is formed at the outer edge of the transferred body on the dye receiving surface of the transferred body, and then the blank portion is cut, resulting in the dye of the transferred body. An image formed on the entire receiving surface may be prepared. In any case, a transfer object used in combination with a film transfer sheet needs to have a dye receptivity on the surface to be a printing screen of the transfer object.

  Examples of materials that can be used as the transfer target include those in which the material constituting the transfer target is made of a resin to which a sublimable dye is dyed, and the thermal transfer image of the dye directly on the transfer target itself. Can be formed. As the constituent material, for example, a polyolefin film, a polyvinyl chloride film, a polyethylene terephthalate film, a polystyrene film, a polymethacrylate film, a polycarbonate film, or the like can be used. Moreover, the thing of the structure which provided the dye receiving layer on various base materials can be used as a to-be-transferred body. As the various base materials, a white opaque film or sheet formed by adding a white pigment or filler to a synthetic resin, or a foamed foam sheet, a synthetic paper (polyolefin type, polystyrene type, etc.) alone Can be used. With respect to the dye-receiving layer provided on the substrate, those described in the description of the intermediate transfer recording medium can be used in the same manner.

  Also, fine paper, dyed paper, art paper, coated paper, cast coated paper, wallpaper, backing paper, synthetic resin solution or emulsion impregnated paper, synthetic rubber latex impregnated paper, synthetic resin internal paper, paperboard, and other cellulose Fiber paper or the like can also be used, and a laminate of any combination such as a plastic film can also be used. A preferable example of a transfer object when using a film transfer sheet, which is applied in the present invention, has a configuration in which transparent polyvinyl chloride layers are laminated on both sides of a central layer of a polyvinyl chloride sheet containing a white pigment. Therefore, at least the transparent vinyl chloride layer, which is the image forming surface, contains an appropriate amount of a plasticizer to improve the dyeing property of the dye.

  In the image forming method using the film transfer sheet and the transfer target, the stamp screen is the dye-receiving surface as the transfer target, and the image formation is described by the thermal transfer recording method.In the case of using the film transfer sheet, The image formation on the transfer target is not limited to the sublimation transfer type thermal transfer recording method, and image formation is performed by a heat melting transfer type thermal transfer recording method, an electrophotographic recording method, an ink jet recording method, or the above recording method. In combination, for example, the gradation image portion can be formed by an electrophotographic recording method, and the character portion can be formed by a heat melting type thermal transfer recording method. The image formation on the transfer medium may be performed by a conventionally known printing method such as offset printing or gravure printing, and the image forming method is not limited.

  A method for transferring a patch portion, which is an area surrounded by a half-cut process, to the transfer object on which the image is formed is as shown in FIG. A method of pressurizing and heating the transfer object between a heat roll and a platen roll, or a film transfer sheet between a heating plate and a flat plate having a size corresponding to the patch portion (size of the transfer object) A method (hot stamp method) or the like of heating and pressurizing the material to be transferred can be used. However, in any of the above-described methods for transferring the patch portion to the image-formed transfer target, the film transfer sheet is formed by engaging the holes of the film transfer sheet with the protrusions of the conveying member (guide roll). The patch portion is transferred in conformity with the size of the transfer object with high conveyance accuracy without causing slack in the sheet.

Next, the present invention will be described more specifically with reference to examples. Hereinafter, unless otherwise specified, parts or% is based on mass.
Example 1
On the transparent sheet of a 25 μm thick polyethylene terephthalate film (manufactured by Toray Industries, Inc., Lumirror), the primer layer is dried at 0.5 g / m ^{2 in the following} composition so that the primer layer and the dye-receiving layer are formed in this order. Furthermore, a dye receiving layer having the following composition was provided on the primer layer in a dry state at a thickness of 2.5 g / m ² . Both the primer layer and the dye receiving layer were applied by gravure coating. On the surface opposite to the above dye-receiving layer, a release layer having the following composition is provided in a dry state with a thickness of 1.5 g / m ² , and a resin layer having the following composition is provided on the release layer in a dry state of 4.0 g. / is provided with a thickness of m ^2, by dry lamination, a polyethylene terephthalate film of 38 [mu] m (manufactured by Toray Industries, Inc., Lumirror) were laminated together. Further, as shown in FIG. 3, the intermediate transfer recording medium, which is the above laminate, is formed in a continuous form in the length direction and includes a primer layer and a dye receiving layer on the transparent sheet portion. Half-cut processing by the press method of the upper mold and pedestal attached with a cutter blade, and formation of holes for meshing with the protrusions provided on the conveying member on both sides in the flow direction of the intermediate transfer recording medium Using the intermediate transfer recording medium manufacturing apparatus 10 that can perform processing simultaneously, the half-cut processing and the hole formation processing are simultaneously performed in the arrangement as shown in FIG. Prepared. The intermediate transfer recording medium is peeled between the release layer and the transparent sheet.

(Coating solution composition for primer layer)
Vinyl chloride-vinyl acetate copolymer 10 parts Polyester resin 10 parts Methyl ethyl ketone 20 parts Toluene 50 parts

(Coating solution composition for dye-receiving layer)
Vinyl chloride-vinyl acetate copolymer 100 parts Epoxy-modified silicone 5 parts Methyl ethyl ketone / toluene (mass ratio 1/1) 400 parts

(Coating solution composition for release layer)
Acrylic resin 50 parts Polyethylene wax 2.5 parts Methyl ethyl ketone / toluene (mass ratio 1/1) 50 parts

(Coating liquid composition for resin layer)
Polyester-based pressure-sensitive adhesive (manufactured by Dainichi Seika Kogyo Co., Ltd., Seika Bond E295 / isocyanate cross-linking agent C55 = mixing ratio 9 / 0.25) 20 parts ethyl acetate 80 parts

(Example 2)
In the intermediate transfer recording medium of Example 1 above, the condition was changed from the condition in which the primer layer and the dye-receiving layer were sequentially formed on the transparent sheet to the condition in which the adhesive layer was formed on the transparent sheet under the following conditions. A film transfer sheet was prepared. However, other conditions are as in Example 1. The adhesive layer was provided in a dry state with a thickness of 2.5 g / m ² by gravure coating with the following composition. However, the film transfer sheet of Example 2 was produced by simultaneously performing the half-cut processing and the hole formation processing in the arrangement shown in FIG. In addition, said film transfer sheet peels between a peeling layer and a transparent sheet.

(Coating liquid composition for adhesive layer)
Vinyl chloride-vinyl acetate copolymer 20 parts Acrylic resin 10 parts Ethyl acetate 20 parts Toluene 50 parts

(Comparative Example 1)
A laminate of the intermediate transfer recording medium having the layer structure shown in Example 1 is prepared, and the intermediate transfer recording medium is continuously cut in the length direction, and includes a primer layer and a dye receiving layer, and a cutter is formed on the transparent sheet portion. The intermediate transfer recording medium of Comparative Example 1 was manufactured by performing half-cut processing by the press method of the upper mold with the blade and the pedestal and printing the detection mark at the position corresponding to the hole shown in FIG. . However, the half-cut processing unit and the detection mark printing unit are separate units, and are not linked to each other.

(Comparative Example 2)
An upper mold in which a laminate of the film transfer sheet having the layer structure shown in Example 2 above is prepared, and the cutter blade is attached to the transparent sheet portion including the adhesive layer in a form in which the film transfer sheet is continuous in the length direction. A film transfer sheet of Comparative Example 2 was produced by processing the half-cut process by the press method between the pedestal and the pedestal and printing the detection mark at a position corresponding to the hole shown in FIG. However, the half-cut processing unit and the detection mark printing unit are separate units, and are not linked to each other.

The transfer object used in combination with the intermediate transfer recording media of the above-described examples and comparative examples was produced under the following conditions. As a base material sheet, on a transparent polyethylene terephthalate film (Lumirror T60, # 25, manufactured by Toray Industries, Inc.), an intermediate layer coating solution having the following composition is wire bar coated to a dry coating amount of 2.0 g / m ² . The intermediate layer was formed by coating and drying. On the intermediate layer, a dye receiving layer coating solution having the following composition is applied by wire bar coating so that the dry coating amount is 4.0 g / m ² and dried to form a dye receiving layer. A transfer object was prepared.

<Intermediate layer coating solution>
Polyurethane resin (Nippon Polyurethane Industry Co., Ltd., NIPPON 5199) 25.0 parts Titanium oxide (Tochem Products, TCA-888) 75.0 parts Methyl ethyl ketone / toluene (mass ratio 1: 1) 400.0 parts

<Dye-receiving layer coating solution>
Vinyl chloride-vinyl acetate copolymer resin (manufactured by Nissin Chemical Industry Co., Ltd., Solvein C) 100.0 parts Epoxy-modified silicone (manufactured by Shin-Etsu Chemical Co., Ltd., X-22-3000T) 5.0 parts methyl ethyl ketone / Toluene (mass ratio 1: 1) 400.0 parts

  In addition, the material to be transferred used in combination with the film transfer sheets of Examples and Comparative Examples is 100 parts of a polyvinyl chloride (polymerization degree 800) compound containing about 10% of an additive such as a stabilizer, a white pigment (titanium oxide). ) A card substrate consisting of 10 parts and 0.5 parts plasticizer (DOP) was used. The surface of this card substrate has dye receptivity, and the card substrate itself can be used as a thermal transfer image receiving sheet.

  Using the intermediate transfer recording medium produced in Example 1 above and a transfer medium provided with an intermediate layer and a dye receiving layer on the base sheet, and using a thermal transfer ink ribbon for an intermediate transfer card printer In the arrangement shown in FIG. 4, each material is attached, and the thermal transfer ink ribbon 33 and the intermediate transfer recording medium 1 are pressed between the thermal head 23 and the platen roll 24 in the image forming unit 22, and the image is transferred from the thermal head 23. Then, the thermal transfer ink ribbon 33 is heated to form a thermal transfer image on the dye receiving layer of the intermediate transfer recording medium 1. At that time, the holes of the intermediate transfer recording medium 1 are engaged with the protrusions 34, and the holes of the intermediate transfer recording medium 1 are engaged with the protrusions 36, so that the intermediate transfer recording medium 1 is not slackened and conveyed. Image formation is performed with high accuracy. Although not shown in FIG. 4, the image forming unit detects the hole in the intermediate transfer recording medium with a sensor and, as shown in FIG. 1, has a size larger than the size of the patch portion 8 and is thermally transferred to the dye receiving layer. Image 9 was formed repeatedly.

  Subsequently, in the transfer section 25 of the patch section, the intermediate transfer recording medium 1 on which the thermal transfer image is formed and the transfer target 42 are transferred to the dye receiving layer on which the thermal transfer image of the intermediate transfer recording medium 1 is formed, and The intermediate transfer recording medium 1 and the transfer target medium 42 are pressed between the heat roll 26 and the platen roll 27 and heated by the heat roll 26 so as to be in contact with the transfer body 42. The image-formed patch portion 1 was peeled between the release layer of the intermediate transfer recording medium and the transparent sheet, and transferred to the transfer medium 42 in the state of a transparent sheet with a dye-receiving layer. However, in the transfer part 25 of the patch part, the protrusion part of the conveying member is always meshed with the hole provided in the intermediate transfer recording medium, and the patch part on which the image is formed and the transferred object are aligned. Only the patch part was transferred so as to match the size of the transfer target. As a result, the patch portion in the form in which the dye receiving layer on which the thermal transfer image is formed and the transparent sheet are laminated on the transfer body stably creates a borderless print that matches the size of the transfer body. I was able to. (See FIG. 6) Further, since the thermal transfer image was entirely covered with a transparent sheet, the obtained printed matter was excellent in various durability of the thermal transfer image even under severe use conditions.

  The above results are the results obtained by the image forming method using the intermediate transfer recording medium produced in Example 1. On the other hand, using the intermediate transfer recording medium produced in Comparative Example 1, Image formation was performed by the method shown. Using the intermediate transfer recording medium produced in the above Comparative Example 1 and a transfer medium provided with an intermediate layer and a dye receiving layer on the base sheet, and using a thermal transfer ink ribbon for an intermediate transfer card printer The thermal transfer ink ribbon and the intermediate transfer recording medium are pressurized between the thermal head and the platen roll, and the thermal transfer ink ribbon is heated in the form of an image from the thermal head to form a thermal transfer image on the dye receiving layer of the intermediate transfer recording medium. Form. The image was formed by reading a detection mark provided on the intermediate transfer recording medium and repeatedly forming a thermal transfer image on the dye receiving layer with a size larger than the size of the patch portion.

  Next, in the transfer portion of the patch portion, the intermediate transfer recording medium on which the thermal transfer image is formed and the transfer target are in contact with the dye receiving layer on which the thermal transfer image of the intermediate transfer recording medium is formed and the transfer target are in contact with each other. The intermediate transfer recording medium and the transfer target are pressed between the heat roll and the platen roll, and heated by the heat roll, and the image-formed patch portion of the intermediate transfer recording medium is transferred to the intermediate transfer recording medium. It peeled between the peeling layer of a recording medium, and the transparent sheet, and was transcribe | transferred to the to-be-transferred material in the state of the transparent sheet with a dye receiving layer. The patch portion was transferred by reading a detection mark provided on the intermediate transfer recording medium and transferring the patch portion to a transfer target. As a result, the patch portion had a blank portion where no thermal transfer image was formed (see FIG. 13), and was mixed and could not be said to be a borderless print. Further, the obtained printed matter was inferior in durability of the thermal transfer image because a portion not covered with the patch portion occurred at the end of the print screen.

  Using the above-mentioned transfer material of the card base, using the thermal transfer ink ribbon, the thermal transfer ink ribbon and the transfer object are pressed between the thermal head and the platen roll, and the thermal transfer ink ribbon is formed into an image from the thermal head. On the other hand, heating is performed to form a thermal transfer image on the transfer medium. However, a thermal transfer image was formed on the entire surface of the card substrate of the transfer target.

  Then, the film transfer sheet produced in the above Example 2 and the image-formed transfer target are mounted in the arrangement shown in FIG. The image-formed transfer object 82 is overlapped so that the adhesive layer of the film transfer sheet 1 and the image-formed surface of the transfer object are in contact with each other, and the film transfer sheet 61 and the transfer object 82 are heated rolls. 72 and the platen roll 74 is pressed and heated by the heat roll 73, and the patch portion of the film transfer sheet 61 is peeled off between the release layer and the transparent sheet to form a transparent sheet with an adhesive layer Then, the image was transferred to the transfer target 82. However, in the transfer part 72 of the patch part, the protrusions of the conveying member are always meshed with the holes provided in the film transfer sheet 61 so that the patch part of the film transfer sheet and the image-formed transfer target are aligned. Thus, only the patch part was transferred in accordance with the size of the transfer target. As a result, a thermal transfer image is formed on the entire surface of the transferred image, and the size of the transferred image that is the printed image matches the transferred patch. It was possible to stably produce a print with no margin and no margin at the edge of the outer edge. Moreover, since the thermal transfer image was entirely covered with the transparent sheet, the obtained printed matter was excellent in various durability of the thermal transfer image even under severe use conditions.

  The above results are the results obtained by the image forming method using the film transfer sheet prepared in Example 2, whereas the following method using the film transfer sheet prepared in Comparative Example 2 was used. Thus, image formation was performed. First, using the above-mentioned card base material to be transferred, and using the thermal transfer ink ribbon, the thermal transfer ink ribbon and the material to be transferred are pressurized between the thermal head and the platen roll, and the thermal transfer ink is imaged from the thermal head. The ribbon is heated to form a thermal transfer image on the transfer target. However, a thermal transfer image was formed on the entire surface of the card substrate of the transfer target.

  Next, in the transfer part of the patch part, the transferred object on which the thermal transfer image is formed and the film transfer sheet are brought into contact with the printing screen on which the thermal transfer image of the transferred object is formed and the adhesive layer of the film transfer sheet. The film transfer sheet and the transfer object are pressed between the heat roll and the platen roll, and heated by the heat roll, and the patch portion of the film transfer sheet is placed between the release layer and the transparent sheet. It peeled and it transferred to the to-be-transferred image-formed body in the state of the transparent sheet with an adhesive layer. However, the transfer of the patch portion was performed by reading the detection mark provided on the film transfer sheet and transferring the patch portion to the transfer target. As a result, a portion not covered with the patch portion is generated at the end of the mark screen of the transfer target (see FIG. 14), and the durability of the thermal transfer image is inferior.

1 is a schematic plan view showing an embodiment of an intermediate transfer recording medium of the present invention. FIG. 2 is a schematic sectional view when the intermediate transfer recording medium shown in FIG. 1 is cut. FIG. 3 is a diagram schematically illustrating a method for manufacturing an intermediate transfer recording medium of the present invention. FIG. 3 is a diagram schematically illustrating a method for forming an image using the intermediate transfer recording medium and the transfer target according to the present invention. FIG. 3 is a schematic cross-sectional view showing an example of a printed matter obtained by an image forming method using the intermediate transfer recording medium of the present invention. FIG. 3 is a schematic plan view showing an example of a printed matter obtained by the image forming method using the intermediate transfer recording medium of the present invention. FIG. 10 is a schematic plan view showing an example of a printed matter in which a thermal transfer image is formed on a transfer target using a conventional intermediate transfer recording medium. It is a schematic plan view which shows one embodiment of the film transfer sheet of this invention. It is a schematic sectional drawing at the time of cut | disconnecting the film transfer sheet shown in FIG. It is a figure which illustrates roughly the method of forming an image using the film transfer sheet of this invention, and a to-be-transferred body. It is a schematic sectional drawing which shows the example of the printed matter obtained by the image forming method using the film transfer sheet of this invention. It is the schematic plan view which showed the example in which the hole which meshes with the projection part provided in the member for conveying with the form which the intermediate transfer recording medium or the film transfer sheet continued in the length direction was formed. FIG. 11 is a schematic plan view showing an example of a printed material in which a conventional intermediate transfer recording medium is used and the size of a patch portion is the same as the size of a transfer object and a thermal transfer image is formed on the transfer object. Schematic showing an example of a printed material obtained by transferring a patch portion of a film transfer sheet onto a thermal transfer image on a thermal transfer image formed on the entire surface of the transfer target using a conventional film transfer sheet. It is a top view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intermediate transfer recording medium 2, 62 Sheet base material 3, 63 Resin layer 4, 64 Transparent sheet 5 Dye receiving layer 6, 66 Half cut processing 7, 67 Hole meshing with projection provided on member for conveyance 8, 68 Patch part 9 Thermal transfer image 10 Intermediate transfer recording medium manufacturing device 11 Supply unit 12 Processing unit 13 Upper part of winding 14 Cutter blade for half-cut processing 15 Punch 16 Upper die 17 Base 18 Die 20 Image forming device 21, 71 Supply unit 22 Image forming unit 23 Thermal head 24 Platen roll 25, 72 Patch unit transfer unit 26, 73 Heat roll 27, 74 Platen roll 28, 75 Upper part 29, 30, 31, 32, 76, 77 Guide roll (conveying member)
33 Thermal transfer sheet 34, 35, 36, 37, 38, 39, 40, 41, 78, 79, 80, 81 Protrusion 42 Transfer object 50 Printed object 51 Margin 61 Film transfer sheet 65 Adhesive layer 69 2 of transfer object Around edge (edge) 70 Image manufacturing apparatus 82 Transfer object 83 Thermal transfer image 90 Printed matter 91, 92, 93, 94, 95, 96 hole

Claims (9)

  A sheet base material provided with a resin layer and a transparent sheet provided with a dye receiving layer are laminated, peeled between the resin layer and the transparent sheet, and the transparent sheet with the dye receiving layer is transferred to the transfer target. In the intermediate transfer recording medium, the intermediate transfer recording medium is continuous in the length direction, the transparent sheet portion including the dye receiving layer is subjected to a half-cut process, and at least in the flow direction of the intermediate transfer recording medium An intermediate transfer recording medium, wherein a hole is formed on one side to mesh with a projection provided on a member for conveyance.   2. The intermediate transfer recording medium according to claim 1, wherein the holes are continuously formed at a constant interval in a flow direction of the intermediate transfer recording medium.   In a method for producing an intermediate transfer recording medium in which a sheet base material provided with a resin layer and a transparent sheet provided with a dye receiving layer are laminated and peeled between the resin layer and the transparent sheet, the intermediate transfer recording medium has a length. In a form that is continuous in the direction, the transparent sheet portion including the dye receiving layer is processed into a half-cut process, and meshes with a protrusion provided on a member for transporting at least one side in the flow direction of the intermediate transfer recording medium A method for producing an intermediate transfer recording medium, wherein the hole forming process is performed simultaneously.   Using the intermediate transfer recording medium according to claim 1 or 2, a thermal transfer image is formed on the dye receiving layer with a size equal to or larger than the size of the patch portion that is an area surrounded by the half-cut process, The protrusions of the conveying member are engaged with the holes provided in the intermediate transfer recording medium, and the image-formed patch portion is aligned with the transfer target, so that only the patch portion is transferred to the transfer target. A method of forming an image, comprising: transferring a dye-receiving layer in conformity with a size, and covering the image-formed dye-receiving layer with a transparent sheet.   In the above image forming method, when forming a thermal transfer image on the dye-receiving layer, the protrusion of the conveying member is meshed with the hole provided in the intermediate transfer recording medium so that the size is equal to or larger than the size of the patch portion. 5. The image forming method according to claim 4, wherein a thermal transfer image is formed on the dye receiving layer.   Film transfer in which a sheet base material provided with a resin layer and a transparent sheet provided with an adhesive layer are laminated, peeled between the resin layer and the transparent sheet, and the transparent sheet with the adhesive layer is transferred to the transfer target In the sheet, the film transfer sheet has a continuous form in the length direction, the transparent sheet portion including the adhesive layer is subjected to a half-cut treatment, and is transported to at least one side in the flow direction of the film transfer sheet. A film transfer sheet, wherein a hole is formed to mesh with a protrusion provided in the member.   The film transfer sheet according to claim 6, wherein the holes are continuously formed at regular intervals in the flow direction of the film transfer sheet.   In a method for producing a film transfer sheet in which a sheet base material provided with a resin layer and a transparent sheet provided with an adhesive layer are laminated and peeled between the resin layer and the transparent sheet, the film transfer sheet is continuous in the length direction. In this form, a half-cut process is performed on the transparent sheet portion including the adhesive layer, and at least one side of the film transfer sheet in the flow direction is formed with a hole for meshing with a protrusion provided on a member for conveyance. A method for producing a film transfer sheet, wherein the processing is performed simultaneously. Using the transfer target on which an image is formed and the film transfer sheet according to claim 6 or 7, the protrusions of the conveying member are meshed with the holes provided in the film transfer sheet, and half-cut processing is performed. The patch portion, which is the surrounded area, is aligned with the transfer object, and only the patch portion is transferred so as to match the size of the transfer object, and the image-formed transfer object is transferred with a transparent sheet. An image forming method comprising coating.

Images