JP7056257B2 - Thermal transfer sheet roll body, image receiving sheet roll body and thermal transfer printing device - Google Patents

Description

The present invention relates to a thermal transfer sheet roll body, an image receiving sheet roll body, and a thermal transfer printing device.

In the thermal transfer printing apparatus, a sublimation dye is used as a recording material, and a sublimation dye is obtained from a thermal transfer sheet (sublimation type thermal transfer sheet) having a dye layer in which a dye for sublimation transfer is used as a recording material and the dye is supported on a substrate such as a polyester film with an appropriate binder. The sublimation dye is thermally transferred onto an image receiving sheet having a dye receiving layer formed on a transfer material that can be dyed with, for example, paper or a plastic film, to form various full-color images.

In recent years, with the progress of thermal transfer recording technology, the types of thermal transfer sheets have become wide-ranging, and there are increasing cases where these various types of thermal transfer sheets are used in one type of thermal transfer printing device. In order to obtain the desired printing performance and durability, it is necessary to identify the type of the thermal transfer sheet and control the heating energy of the thermal transfer sheet according to the type.

Patent Document 1 discloses a configuration in which a thermal transfer sheet is housed in a cassette case and a bar code label indicating information on the number of recordable screens of the thermal transfer sheet is attached to the outer surface of the cassette case. However, in order to match the cassette case with the thermal transfer sheet to be accommodated, it is necessary to provide an identification mark on both the cassette case and the thermal transfer sheet, collate them, and then accommodate the thermal transfer sheet in the cassette case.

Patent Document 2 discloses a configuration in which an ID tag storing unique information about the thermal transfer sheet is embedded in an ID tag holder on the end face of the winding core around which the thermal transfer sheet is wound. Patent Document 3 discloses a configuration in which an adapter is attached to the end of a winding core and a barcode or an ID tag is attached to the outer peripheral surface of the adapter. However, it was necessary to prepare parts such as ID tag holders and adapters and assemble them to the core. In addition, the ID tag is expensive and costly.

In Patent Document 4, a thermal transfer sheet is wound around a bobbin, and a two-dimensional code is directly printed and formed on an exposed portion of the bobbin surface that is not covered with the thermal transfer sheet, or a substrate on which the two-dimensional code is printed is coated with an adhesive. The structure to be pasted is disclosed. However, it has been difficult to print a two-dimensional code or attach a base material to the surface of a bobbin having a curvature. Moreover, when the two-dimensional code was printed directly on the bobbin surface, the bobbin could not be reused. When the base material was attached to the surface of the bobbin, it took time and effort to peel off the base material in order to reuse the bobbin. When the adhesive force was reduced so that the base material could be easily peeled off, the base material sometimes peeled off or dropped from the bobbin due to external force or aging.

Patent Document 5 discloses a configuration in which a barcode on which manufacturing information is recorded is provided on a leader film of a thermal transfer sheet. However, since the bar code is provided on the reader film, the bar code is covered by the thermal transfer sheet wound on the take-up side roll during use of the thermal transfer sheet, and the information cannot be read.

As described in Patent Documents 1 to 5, various methods for detecting information on the thermal transfer sheet from the thermal transfer sheet side have been proposed, but sufficient studies have been made on adding various information such as varieties to the image receiving sheet. , Practical use has not progressed. For example, the methods of Patent Documents 2 to 4 cannot be applied to a cassette or a receiving paper roll without a winding core. Further, since the image receiving sheet does not have a take-up shaft, a leader film is not used, and the method of Patent Document 5 cannot be applied.

Jikkai Sho 63-68453 Gazette Japanese Unexamined Patent Publication No. 2005-199582 U.S. Pat. No. 7,594,771 Japanese Patent No. 6040668 Japanese Unexamined Patent Publication No. 9-290551

The present invention has been made in view of the above-mentioned conventional circumstances, and it is an object of the present invention to provide a thermal transfer sheet roll body and an image receiving sheet roll body which can identify varieties with high accuracy by a thermal transfer printing apparatus. Another object of the present invention is to provide a thermal transfer printing apparatus that identifies a loaded thermal transfer sheet or an image receiving sheet and performs a printing process.

In the thermal transfer sheet roll body of the present invention, one end side in the longitudinal direction of the thermal transfer sheet provided with the base film and the dye layer provided on the base film is bonded to the first axial core, and the other end side is the first. A thermal transfer sheet roll body bonded to a biaxial core and wound with the thermal transfer sheet around the first axial core, wherein a member on which code information is printed is attached to one end or the other end of the thermal transfer sheet in the longitudinal direction. At least a part of the code information printing portion of the member is provided and projects from the long side of the thermal transfer sheet.

In one aspect of the present invention, the member is provided at the one end portion in the longitudinal direction, and at least a part of the code information printing portion projects from the end surface of the thermal transfer sheet roll body.

In one aspect of the present invention, the member is a label on which the code information is printed, and the label is attached to the thermal transfer sheet.

In one aspect of the present invention, the member is a label on which the code information is printed, and the label is attached to a bonding tape for joining the one end side of the thermal transfer sheet and the first shaft core.

In one aspect of the present invention, the member is a label on which the code information is printed, and a film connecting the one end side of the thermal transfer sheet and the first shaft core is provided, and the label is the film. It is affixed to.

In one aspect of the present invention, a film connecting the one end side of the thermal transfer sheet and the first shaft core is provided, and the code information is printed on the film.

In one aspect of the present invention, the code information includes information corresponding to the product type of the thermal transfer sheet and the manufacturing information at the time of intermediate processing of the thermal transfer sheet.

The image-receiving sheet roll body of the present invention is an image-receiving sheet roll body obtained by winding an image-receiving sheet provided with a base material and a receiving layer provided on one surface side of the base material, and code information is printed on the image-receiving sheet roll body. A label is attached to one end of the image receiving sheet in the longitudinal direction, and at least a part of the code information printing portion of the label projects from the end surface of the image receiving sheet roll body.

In one aspect of the invention, the label is affixed so that the code information faces one side of the label.

In one aspect of the present invention, the code information includes information corresponding to the product type of the image receiving sheet and the manufacturing information at the time of intermediate processing of the image receiving sheet.

The thermal transfer printing apparatus of the present invention has a thermal head and a platen roll, and the thermal transfer sheet unwound from the thermal transfer sheet roll body of the present invention and an image receiving sheet are superposed to form the thermal head and the platen roll. A thermal transfer printing device in which the thermal head heats the thermal transfer sheet to transfer a dye and forms an image on the image receiving sheet, and the cord is provided from the member provided on the thermal transfer sheet roll body. It includes a sensor for reading information and an identification unit for identifying the type of the thermal transfer sheet from the reading result of the sensor.

In one aspect of the present invention, the printing process is performed under the printing conditions according to the type of the thermal transfer sheet identified by the identification unit.

The thermal transfer printing apparatus of the present invention has a thermal head and a platen roll, and the thermal transfer sheet containing a dye layer and the image receiving sheet unwound from the image receiving sheet roll body of the present invention are superposed on the thermal head and the above. The thermal head is a thermal transfer printing device that heats the thermal transfer sheet to transfer a dye and forms an image on the image receiving sheet while being conveyed between the platen rolls, and is provided on the image receiving sheet roll body. It includes a sensor that reads code information from a label, and an identification unit that identifies the type of the image receiving sheet from the reading result of the sensor.

In one aspect of the present invention, the printing process is performed under the printing conditions according to the type of the image receiving sheet identified by the identification unit.

According to the present invention, it is possible to identify the types of thermal transfer sheets and image receiving sheets with high accuracy in the thermal transfer printing apparatus.

(A) is a plan view of the thermal transfer sheet according to the embodiment of the present invention, and (b) is a plan view of the thermal transfer sheet wound around the shaft core. (A) is a plan view of the image receiving sheet, and (b) is a perspective view of the image receiving sheet roll. It is a schematic block diagram of the thermal transfer printing apparatus which concerns on the same embodiment. It is a figure which shows the example of reading information from a thermal transfer sheet. It is a figure which shows the example of reading the information from the image receiving sheet. (A) to (d) are plan views of the thermal transfer sheet according to the modified example. (A) to (e) are plan views of the thermal transfer sheet according to the modified example.

Hereinafter, embodiments will be described with reference to the drawings. FIG. 1A is a plan view of the thermal transfer sheet 1 according to the embodiment, and FIG. 1B is a plan view of the thermal transfer sheet 1 wound around the supply shaft core 7. In this thermal transfer sheet 1, a Y layer 3 containing a yellow dye, an M layer 4 containing a magenta dye, and a C layer 5 containing a cyan dye are sequentially provided on one surface of a base film. A protective layer may be provided following the C layer 5.

The Y layer 3, the M layer 4, and the C layer 5 are formed on the base film by gravure printing, screen printing, offset printing, or the like, respectively.

The tip side of the thermal transfer sheet 1 in the longitudinal direction is joined to the take-up shaft core 6 by a bonding tape 8. The rear end side of the thermal transfer sheet 1 in the longitudinal direction is joined to the supply shaft core 7 by a bonding tape 9. The lengths of the take-up shaft core 6 and the supply shaft core 7 are longer than the width (length in the lateral direction) of the thermal transfer sheet 1.

A label 2 on which the barcode BC1 is printed is attached to the dye layer at the rear end of the thermal transfer sheet 1 (the C layer 5 is the rear end in FIG. 1A) with an adhesive or the like. The label 2 is positioned so that at least a part of the barcode printing portion does not overlap with the thermal transfer sheet 1, that is, the label 2 projects outward from the edge (long side) 1a of the thermal transfer sheet 1 in the width direction. It is pasted so that it does. Further, as will be described later, the label 2 is attached so that the barcode BC1 faces outward when the thermal transfer sheet 1 is wound around the supply shaft core 7. The material of the label 2 is not particularly limited, and a resin film or paper can be used.

The barcode BC1 indicates information corresponding to the product type of the thermal transfer sheet 1. Further, manufacturing information and traceability information during sheet processing such as slit processing and small winding processing lot may be added to the barcode BC1.

The thermal transfer sheet 1 is shipped in a state of being wound around the supply shaft core 7, and is loaded into a thermal transfer printing device described later. As described above, the barcode printing portion of the label 2 is located outside the edge 1a of the thermal transfer sheet 1. Therefore, as shown in FIG. 1 (b), in a state where the thermal transfer sheet 1 is wound around the supply shaft core 7 in a roll shape, the bar code printing portion of the label 2 is outside the end face of the thermal transfer sheet roll 1B in the axial direction. It is located overhanging so that the barcode BC1 can be seen.

When the thermal transfer sheet 1 is wound around the supply shaft core 7, the label 2 extends along the outer peripheral surface of the supply shaft core 7. The length L1 of the label 2 in the longitudinal direction of the thermal transfer sheet 1 (see FIG. 1A) is set to be equal to or less than the outer peripheral length of the supply shaft core 7, and both ends of the label 2 when the thermal transfer sheet 1 is wound around the supply shaft core 7. It is preferable that they do not overlap.

Further, the length L2 protruding outward from the edge 1a of the thermal transfer sheet 1 of the label 2 is preferably shorter than the distance S between the edge 1a and the end of the supply shaft core 7. As a result, when the thermal transfer sheet 1 is wound around the supply shaft core 7, the label 2 is located inside the end of the supply shaft core 7, so that it is possible to prevent the label 2 from bending during transportation and the like, and the thermal transfer printing is performed. The thermal transfer sheet 1 can be easily loaded into the apparatus. Since no adhesive or the like is attached to the portion of the label 2 that protrudes outward from the edge 1a of the thermal transfer sheet 1, the label 2 can be easily separated from the supply shaft core 7 together with the thermal transfer sheet 1.

FIG. 2A is a plan view of the image receiving sheet 10 according to the embodiment, and FIG. 2B is a perspective view of the image receiving sheet roll 14 around which the image receiving sheet 10 is wound. FIG. 2B shows an example of the image receiving sheet roll 14 in which the image receiving sheet 10 is wound without the winding core, but there may be a winding core.

The image receiving sheet 10 includes a base material and a receiving layer provided on the surface (one side) side of the base material. A label 12 on which the barcode BC2 is printed is attached to the rear end side of the image receiving sheet 10 in the longitudinal direction (the winding start side when the image receiving sheet 10 is wound) with an adhesive or the like.

The label 12 is positioned so that at least a part of the barcode printing portion does not overlap the image receiving sheet 10, that is, the barcode printing portion projects outside the width direction from the edge (long side) 10a of the image receiving sheet 10. It is pasted so that it does. Further, the label 2 is attached so that the barcode BC2 faces the front surface side of the image receiving sheet 10. As a result, the barcode BC2 faces outward when the image receiving sheet 10 is wound up. The material of the label 12 is not particularly limited, and a resin film or paper can be used.

The barcode BC2 indicates information corresponding to the product type of the image receiving sheet 10. Further, manufacturing information and traceability information during sheet processing such as slit processing and small winding processing lot may be added to the barcode BC2.

The image receiving sheet 10 is shipped in a rolled state as shown in FIG. 2B, and is loaded into a thermal transfer printing device described later. As described above, the barcode printing portion of the label 12 is located outside the edge 10a of the image receiving sheet 10. Therefore, as shown in FIG. 2B, the bar code printing portion of the label 12 is located so as to project outward from the end surface of the image receiving sheet roll 14 in the winding core direction so that the bar code BC2 can be seen.

When the image receiving sheet 10 is wound up, the label 12 extends along the outer periphery of the center hole 15 of the image receiving sheet roll 14, which is a winding body of the image receiving sheet 10. The length L3 of the label 12 in the longitudinal direction of the image receiving sheet 10 (see FIG. 2A) is set to be equal to or less than the outer peripheral length of the center hole 15 so that both ends of the label 12 do not overlap when the image receiving sheet 10 is wound. It is preferable to do so. When the label 12 is attached so that the barcode BC2 faces the back surface side of the image receiving sheet 10, the length L3 of the label 12 is set to the center hole 15 so that the barcode BC2 can be easily read by the sensor 122 described later. It is preferable that the outer peripheral length is ½ or less.

The length L4 of the label 12 in the lateral direction of the image receiving sheet 10 is made longer than the width (length in the lateral direction) d of the image receiving sheet 10. More specifically, the length L4 of the label 12 is set to the image receiving sheet. It is preferable that the width d of 10 and the length L5 of the bar code printing portion of the label 12 are the total or more. As a result, the edge 12a and 12b of the label 12 do not overlap with the image receiving sheet 10, and it is possible to prevent the image receiving sheet 10 from being indented by the edge 12b. Since no adhesive or the like is attached to the portion of the label 12 that protrudes outward from the edge 10a of the image receiving sheet 10, it can be easily attached / detached to / from the take-up component 124 described later.

It is preferable that the image receiving sheet roll 14 with a part of the label 12 protruding from the end face is covered with a resin cover or the like so that the label 12 is not bent and transported.

FIG. 3 is a schematic configuration diagram of a thermal transfer printing device according to an embodiment of the present invention. The thermal transfer printing apparatus includes a thermal head 101 that sublimates and transfers a yellow dye, a magenta dye, and a cyan dye onto an image receiving sheet 10 using a thermal transfer sheet 1 to print an image.

A supply shaft core 7 around which the thermal transfer sheet 1 is wound is attached to the supply unit 103 on the downstream side of the thermal head 101. The take-up shaft core 6 is attached to the recovery portion 104 on the upstream side of the thermal head 101. The thermal transfer sheet 1 unwound from the supply unit 103 passes through the thermal head 101, is collected by the recovery unit 104, and is wound around the winding shaft core 6.

As shown in FIGS. 3 and 4, the supply unit 103 is provided with a sensor 120 for reading the barcode BC1 of the label 2. Since the barcode printing portion of the label 2 is located outside the end face of the thermal transfer sheet roll 1B, the sensor 120 can read the barcode BC1 at any time before, during, or after the use of the thermal transfer sheet 1. can.

A rotatable platen roll 102 is provided on the lower side of the thermal head 101. The printing unit 140 including the thermal head 101 and the platen roll 102 sandwiches the image receiving sheet 10 and the thermal transfer sheet 1, heats the thermal transfer sheet 1, and thermally transfers the dye onto the image receiving sheet 10 to form an image.

On the upstream side of the thermal head 101, a rotationally driveable capstan roller 109a for transporting the image receiving sheet 10 and a pinch roller 109b for crimping the image receiving sheet 10 to the capstan roller 109a are provided.

As shown in FIG. 5, the winding shaft component 124 is fitted into the center hole 15 of the image receiving sheet roll 14, and the image receiving sheet roll 14 is loaded. When the drive unit 126 rotates (forward / reverse) the winding shaft component 124, the image receiving sheet roll 14 rotates, and the image receiving sheet 10 is unwound (conveyed to the front side) and wound (conveyed to the rear side). Will be done. When the take-up member 124 is inserted into the image receiving sheet roll 14 with a part of the label 12 protruding from the end face, the tip of the take-up member 124 is tapered so that the label 12 does not bend, or the drive unit 126 and the label are used. It is desirable to provide a regulation guide for the image receiving sheet roll 14 in order to prevent contact with the image receiving sheet roll 12.

A sensor 122 for reading the barcode BC2 of the label 12 is provided in the drive unit 126 or in the vicinity of the drive unit 126. Since the barcode printing portion of the label 12 is located outside the end surface of the image receiving sheet roll 14, the sensor 122 can read the barcode BC2 at any time before, during, or after using the image receiving sheet 10. can.

The image receiving sheet 10 image-formed by the printing unit 140 is cut out as a printed sheet leaf P by a cutter 108 on the downstream side. The printed sheet sheet P is discharged from an discharge port (not shown).

The control device 110 controls the drive of each part of the thermal transfer printing device, and performs identification processing and printing processing of the thermal transfer sheet 1 and the image receiving sheet 10. The control device 110 is a computer having a storage unit 112 including a CPU (central processing unit), a flash memory, a ROM (Read-only Memory), a RAM (Random Access Memory), and the like. The storage unit 112 stores the control program and the table T. When the CPU executes the control program, the identification unit 111 can identify the product types of the thermal transfer sheet 1 and the image receiving sheet 10.

In the table T, the information read from the barcode BC1 and the product type of the thermal transfer sheet 1 are recorded in association with each other. Further, on the table T, the information read from the barcode BC2 and the product type of the image receiving sheet 10 are recorded in association with each other. On the table T, the printing conditions (printing speed, applied energy at the time of printing) suitable for each type of the thermal transfer sheet 1 and the image receiving sheet 10 and the combination of the thermal transfer sheet 1 and the image receiving sheet 10 may be recorded.

The identification unit 111 refers to the table T and identifies the type of the thermal transfer sheet 1 loaded in the thermal transfer printing apparatus from the reading result of the sensor 120. Further, the identification unit 111 refers to the table T and identifies the type of the image receiving sheet 1 loaded in the thermal transfer printing device from the reading result of the sensor 122. Further, the identification unit 111 can detect the manufacturing information and the like attached to the barcodes BC1 and BC2.

The control device 110 controls the printing process based on the printing conditions according to the type of the identified thermal transfer sheet 1 and / or the image receiving sheet 10. Further, when the type of the thermal transfer sheet 1 loaded in the thermal transfer printing device and the type of the image receiving sheet 10 do not correspond to each other, the control device 110 outputs a warning sound or a warning display, or cancels the printing process. You may.

In this way, the bar code BC1 of the label 2 attached to the thermal transfer sheet 1 can be read, and the product type of the thermal transfer sheet 1 can be accurately identified. Further, the barcode BC2 of the label 12 attached to the image receiving sheet 10 can be read to accurately identify the type of the image receiving sheet 10.

Since the barcode printing portions of the labels 2 and 12 are located outside the end faces of the rolls 1B and 14, information can be constantly detected.

Since the labels 2 and 12 may be attached after printing each layer of the thermal transfer sheet 1 and the image receiving sheet 10, the manufacturing information during the sheet processing can be given to the barcodes BC1 and BC2.

Since the labels 2 and 12 are sandwiched between the sheets by winding the thermal transfer sheet 1 and the image receiving sheet 10, it is possible to prevent the labels 2 and 12 from being peeled off or dropped due to external force or aging.

Since the label 2 is attached to the rear end of the thermal transfer sheet 1, it is not necessary to remove the label 2 from the supply shaft core 7, and the supply shaft core 7 can be easily reused.

In the above embodiment, the configuration in which the label 2 is attached to the rear end portion of the thermal transfer sheet 1 has been described, but as shown in FIG. 6A, the rear end side of the thermal transfer sheet 1 is supplied with a wide bonding tape 9A. The label 2 may be attached to the bonding tape 9A by bonding to the core 7. Label 2 may be located between the bonding tape 9A and the thermal transfer sheet 1.

As shown in FIGS. 6 (b) and 6 (c), the rear end portion of the thermal transfer sheet 1 and the supply shaft core 7 are connected via the leader films 20 and 21, and the label 2 is attached to the leader films 20 and 21. You may. The rear end portion of the thermal transfer sheet 1 and the leader films 20 and 21 are bonded by the bonding tape 9B, and the leader films 20 and 21 and the supply shaft core 7 are bonded by the bonding tape 9C.

In the leader film 20, the length L6 of the thermal transfer sheet 1 in the lateral direction is longer than the width (length in the lateral direction) D of the thermal transfer sheet 1. The length L7 of the leader film 21 in the lateral direction of the thermal transfer sheet 1 is about the same as the width D of the thermal transfer sheet 1. The label 2 is attached to the reader films 20 and 21 so that the barcode printing portion is located outside the edge 1a of the thermal transfer sheet 1 in the width direction.

As shown in FIG. 6D, the barcode BC1 may be printed on the end portion of the reader film 20. The leader film 20 and the thermal transfer sheet 1 are joined so that the barcode printing portion is located outside the edge 1a of the thermal transfer sheet 1 in the width direction.

As shown in FIG. 7A, the label 2 may be attached to the tip end side of the thermal transfer sheet 1. When the label 2 is attached to the tip end side of the thermal transfer sheet 1, the sensor 120 of the thermal transfer printing device is provided on the recovery unit 104 side.

As shown in FIG. 7B, the tip end side of the thermal transfer sheet 1 may be bonded to the winding shaft core 6 with a wide bonding tape 8A, and the label 2 may be attached to the bonding tape 8A. Label 2 may be located between the bonding tape 8A and the thermal transfer sheet 1.

As shown in FIGS. 7 (c) and 7 (d), the tip of the thermal transfer sheet 1 and the take-up shaft core 6 are connected via the leader films 22 and 23, and the label 2 is attached to the leader films 22 and 23. You may. The tip of the thermal transfer sheet 1 and the leader films 22 and 23 are bonded by the bonding tape 8B, and the leader films 22 and 23 and the winding shaft core 6 are bonded by the bonding tape 8C.

The length L8 of the leader film 22 in the lateral direction of the thermal transfer sheet 1 is longer than the width D of the thermal transfer sheet 1. The length L9 of the leader film 23 in the lateral direction of the thermal transfer sheet 1 is about the same as the width D of the thermal transfer sheet 1. The label 2 is attached to the reader films 22 and 23 so that the barcode printing portion is located outside the edge 1a of the thermal transfer sheet 1 in the width direction.

As shown in FIG. 7 (e), the barcode BC1 may be printed on the end portion of the reader film 22. The leader film 22 and the thermal transfer sheet 1 are joined so that the barcode printing portion is located outside the edge 1a of the thermal transfer sheet 1 in the width direction.

The barcode consists of a barcode symbol and quiet zones (margins) at both ends of the barcode symbol. In the above embodiment, the arrangement direction of the quiet zone and the barcode symbol is parallel to the longitudinal direction of the thermal transfer sheet 1 and the image receiving sheet 10, but it does not have to be parallel. Further, instead of the bar code, other code information such as a two-dimensional code or a character string may be used.

Next, the material constituting the thermal transfer sheet 1 will be described.

<Base film>
The base film of the thermal transfer sheet 1 may be any film having a certain degree of heat resistance and strength known in the past, and is, for example, 0.5 μm or more and 50 μm or less, preferably 3 μm or more and 10 μm or less. Polyethylene terephthalate film, 1,4-polycyclohexylene methylene terephthalate film, polyethylene naphthalate film, polyphenylene sulfide film, polystyrene film, polypropylene film, polysulfon film, aramid film, polycarbonate film, polyvinyl alcohol film, cellophane, cellulose acetate, etc. In addition to resin films such as cellulose derivatives, polyethylene films, polyvinyl chloride films, nylon films, polyimide films, and ionomer films, papers such as condenser paper and paraffin paper, non-woven fabrics, etc., or composites of paper, non-woven fabrics, and resins. It may be.

<Dye layer>
The dye layer is formed as a layer containing a sublimable dye.

As the dye, any of the dyes used in known thermal transfer sheets can be used in the present invention and is not particularly limited. These dyes include diarylmethane, triarylmethane, thiazole, methine such as merocyanin, indoaniline, acetophenone azomethin, pyrazoloazomethin, imidazole azomethin, pyridone azomethine and other azomethine, xanthene and oxadin. , Dicyanostyrene, cyanomethylene typified by tricyanostyrene, thiazine, azine, aclysine, benzeneazo, pyridone azo, thiophena azo, isothiazole azo, pyrrol azo, pyrazole azo, imidazole azo, thiazyl azo, triazole azo, Examples thereof include azo-based materials such as disazo, spiropyran-based, indolinospiropirane-based, fluorane-based, rhodamine lactam-based, naphthoquinone-based, anthraquinone-based, and quinophthalone-based.

In the dye layer, at least one of these dyes, a binder resin, a pigment, and a conductive agent is added to one surface of the base film, and toluene, methyl ethyl ketone, ethanol, isopropyl alcohol, cyclohexanone, DMF, etc. are added. It can be formed by dissolving it in an appropriate organic solvent, or dispersing it in an organic solvent, water, etc., and applying and drying it by means of, for example, a gravure printing method, a screen printing method, a reverse roll coating printing method, or the like. .. The thickness of the dye layer after drying is 0.2 μm or more and 6.0 μm or less, preferably 0.2 μm or more and 3.0 μm or less.

<Protective layer>
As the protective layer, various resins conventionally known as protective layer forming resins can be used. Examples of the resin for forming the protective layer include polyester resin, polystyrene resin, acrylic resin, polyurethane resin, acrylic urethane resin, vinyl chloride-vinyl acetate copolymer, resin obtained by modifying each of these resins with silicone, and each of these resins. Can be exemplified as a mixture of the above. The protective layer is formed, for example, by a gravure printing method. The thickness of the protective layer is preferably 0.1 μm or more and 2.0 μm or less after drying.

Next, the material constituting the image receiving sheet 10 will be described.

<Base material>
The base material of the image receiving sheet 10 is synthetic paper (polyolefin, polystyrene, etc.), high-quality paper, art paper, coated paper, cast-coated paper, wallpaper, backing paper, synthetic resin or emulsion-impregnated paper, synthetic rubber latex-impregnated paper. , Synthetic resin inner paper, paperboard, etc., cellulose fiber paper, polyolefin, polyvinyl chloride, polyethylene terephthalate, polystyrene, polymethacrylate, polycarbonate, etc., various plastic films or sheets can be used, and these synthetic resins can be used. A white opaque film formed by adding a white pigment or a filler, a resin incompatible with the base resin of the synthetic resin, or a void production initiator such as a filler, and a mixture thereof is stretched and formed into a film. Therefore, a plastic sheet or the like having fine voids can also be used, and is not particularly limited.

<Receptive layer>
The receiving layer of the image receiving sheet 10 is formed by adding a mold release agent and other, if necessary, various additives to a varnish whose main component is a resin that easily dyes a coloring material. Typical resins that are easily dyed include polyolefins such as polypropylene, halogenated resins such as polyvinyl chloride and vinylidene chloride, vinyl-based resins such as vinyl acetate and polyacrylic acid ester, and their co-weights. Combined (vinyl chloride-vinyl acetate copolymer, etc.), polyethylene terephthalate, polyester resin such as polybutylene terephthalate, polystyrene resin, polyamide resin, olefin such as ethylene and propylene, and copolymer of other vinyl monomers. , Polyurethane, Polycarbonate, Acrylic Resin, Ionomer, Cellulose Derivatives and the like can be used alone or as a mixture, and among these, polyester-based resin and vinyl-based resin are preferable.

It should be noted that the present invention is not limited to the above embodiment as it is, and at the implementation stage, the components can be modified and embodied within a range that does not deviate from the gist thereof. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, some components may be removed from all the components shown in the embodiments. In addition, components across different embodiments may be combined as appropriate.

1 Thermal transfer sheet 2 Label 3 Y layer (yellow dye layer)
4 M layer (magenta dye layer)
5 C layer (cyan dye layer)
6 Winding shaft core 7 Supply shaft core 8, 9 Bonding tape 10 Image receiving sheet 12 Label 14 Image receiving sheet roll 15 Center hole 101 Thermal head 102 Platen roll 103 Supply unit 104 Recovery unit 110 Control device 111 Identification unit 112 Storage unit 120, 122 Sensor 140 Printing section

Claims (14)

One end side of the thermal transfer sheet provided with the base film and the dye layer provided on the base film in the longitudinal direction is bonded to the first shaft core, and the other end side is bonded to the second shaft core. A thermal transfer sheet roll body in which the thermal transfer sheet is wound around a uniaxial core.
A member on which the code information is printed is provided at one end or the other end of the thermal transfer sheet in the longitudinal direction.
A thermal transfer sheet roll body characterized in that a code information printing portion of the member projects from an end surface of the thermal transfer sheet roll body. The thermal transfer sheet roll body according to claim 1, wherein the member is provided at the one end portion in the longitudinal direction. The member is a label on which the code information is printed.
The thermal transfer sheet roll body according to claim 1 or 2, wherein the label is affixed to the thermal transfer sheet. The member is a label on which the code information is printed.
The thermal transfer sheet roll body according to claim 1 or 2, wherein the label is attached to a bonding tape for joining the one end side of the thermal transfer sheet and the first shaft core. The member is a label on which the code information is printed.
A film for connecting the one end side of the thermal transfer sheet and the first shaft core is provided.
The thermal transfer sheet roll body according to claim 1 or 2, wherein the label is affixed to the film. A film for connecting the one end side of the thermal transfer sheet and the first shaft core is provided.
The thermal transfer sheet roll body according to claim 1 or 2, wherein the code information is printed on the film. The thermal transfer sheet roll body according to any one of claims 1 to 6, wherein the code information includes information corresponding to the product type of the thermal transfer sheet and the manufacturing information at the time of intermediate processing of the thermal transfer sheet. An image receiving sheet roll body obtained by winding an image receiving sheet including a base material and a receiving layer provided on one surface side of the base material.
A label on which the code information is printed is affixed to one end of the image receiving sheet in the longitudinal direction.
An image receiving sheet roll body characterized in that the code information printing portion of the label projects from the end surface of the image receiving sheet roll body. The image receiving sheet roll body according to claim 8, wherein the label is attached so that the code information faces one of the faces. The image receiving sheet roll body according to claim 8 or 9, wherein the code information includes information corresponding to the product type of the image receiving sheet and the manufacturing information at the time of intermediate processing of the image receiving sheet. The thermal head and the platen roll, which have a thermal head and a platen roll, are superposed on the image receiving sheet and the thermal transfer sheet unwound from the thermal transfer sheet roll body according to any one of claims 1 to 7. A thermal transfer printing device in which the thermal head heats the thermal transfer sheet to transfer a dye and forms an image on the image receiving sheet.
A sensor that reads code information from the member provided on the thermal transfer sheet roll body,
An identification unit that identifies the type of thermal transfer sheet from the reading result of the sensor,
A thermal transfer printing device equipped with. The thermal transfer printing apparatus according to claim 11, wherein the printing process is performed under the printing conditions according to the type of the thermal transfer sheet identified by the identification unit. The thermal head, which has a thermal head and a platen roll and includes a dye layer, is superposed with the image receiving sheet unwound from the image receiving sheet roll body according to any one of claims 8 to 10. A thermal transfer printing device in which the thermal head heats the thermal transfer sheet to transfer a dye and forms an image on the image receiving sheet while transporting the image between the platen roll and the platen roll.
A sensor that reads code information from the label provided on the image receiving sheet roll body, and
An identification unit that identifies the type of the image receiving sheet from the reading result of the sensor, and
A thermal transfer printing device equipped with. The thermal transfer printing apparatus according to claim 13, wherein the printing process is performed under the printing conditions according to the type of the image receiving sheet identified by the identification unit.

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