Protective patch colored tape for thermal transfer printer and preparation method of protective patch colored tape

Abstract

The present invention relates to a protective patch ribbon for a thermal transfer printer, which can directly record an image or desired information on a patch shape imparting body by using an existing re-transfer printer without providing an additional laminating machine, and can effectively prevent physical damage of a recorded material transferred to a recording target material. The present invention relates to a protective patch ribbon for a thermal transfer printer and capable of preventing forgery of a recorded material transferred to a recording target material, the protective patch ribbon comprising: a peeling body comprising a transport film that repeats unwinding and winding and a bonding layer positioned at least on one surface of the transport film; a patch shape imparting body including a structure in which a patch film substrate and a primer layer are laminated in this order on a bonding layer, and the structure including a punched region; and an image receiving layer which is positioned on the patch shape imparting body, and which defines the shape of the patch transferred onto the recording material by means of the punched hole region.

Description

Technical Field

[0001] The present invention relates to a protective patch ribbon for a thermal transfer printer and a method for preparing the same, and more particularly to a protective patch ribbon for a thermal transfer printer that not only has the effect of protecting a recorded object transferred to a recorded material and preventing the transferred recorded object from being forged, but can also utilize an existing retransfer printer to print an image to an edge area of ​​a recorded material with excellent quality and a method for preparing the same. Background Art

[0002] In order to record information on various plastic cards such as credit cards, transportation cards, or identification cards such as resident registration cards, driver's licenses, etc., an image is printed on the recorded material such as the plastic card or the identification card.

[0003] Among these printing methods, a direct transfer method for printing an image directly onto a recording material has a limitation in that the printing quality at the edge portion of the recording material is degraded.

[0004] In order to overcome such limitations, a retransfer method has been widely used, in which a desired image is printed on an intermediate transfer medium and then the coating layer of the intermediate transfer medium is retransferred to a recording material by a thermal lamination method.

[0005] However, in order to prevent physical damage to the recorded object transferred to the recorded material, it is necessary to carry out a process of additionally attaching a protective patch to the recorded object transferred to the recorded material. Usually, the protective patch is provided in the form of a protective patch ribbon in the form of a film coated with a thermal adhesive layer attached to a transmission film, and then laminated and coated on the recorded object transferred to the recorded material in one direction. Therefore, in order to attach the protective patch to the recorded object, an additional printer or laminator is required, so there is a problem of reducing the effectiveness of the process.

[0006] Therefore, there is a need for a new type of protective patch ribbon for thermal transfer printers, which does not require an additional laminator, can use the existing retransfer printer to achieve image printing, and also has the function of physically protecting the printed image, so that it can simultaneously replace the existing protective patch and retransfer intermediate transfer medium, and achieve image printing with excellent quality.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent document: Korean Patent Publication No. 10-2017-0100364. Summary of the invention

[0010] Problems to be solved by the invention

[0011] The object of the present invention is to provide a protective patch ribbon for a thermal transfer printer, which does not require an additional laminator and can effectively prevent physical damage to the recorded object transferred to the recorded material using an existing retransfer printer.

[0012] Another object of the present invention is to provide a protective patch ribbon for a thermal transfer printer, which can prevent the falsification of recorded matter transferred to a recording material.

[0013] Another object of the present invention is to provide a protective patch ribbon for a thermal transfer printer, which can print an image to an edge area of ​​a recorded material with excellent quality.

[0014] Another object of the present invention is to provide a method for preparing the protective patch ribbon for the thermal transfer printer.

[0015] Solutions for solving problems

[0016] The protective patch ribbon for a thermal transfer printer provided according to the present invention includes: a peeling body, which includes a transmission film that is repeatedly unwound and wound and a bonding layer located on at least one surface of the above-mentioned transmission film; a patch shape imparting body, which includes a structure in which a patch film substrate and a primer layer are sequentially stacked on the above-mentioned bonding layer, and the above-mentioned structure includes a punching area; and an image receiving layer, which is located on the above-mentioned patch shape imparting body, and the shape of the patch transferred to the recording material is determined by the above-mentioned punching area.

[0017] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the transmission film and the patch film substrate may be bonded together by the bonding layer.

[0018] The protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention may further include: a release layer located between the image receiving layer and the primer layer.

[0019] The protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention may further include: a first buffer portion extending from the release layer in an integrated manner and used to fill the punching area.

[0020] According to the thermal transfer printer protective patch ribbon of one embodiment of the present invention, the structural body includes the release layer, and the end of the punching area on the peeling body side can be sunken into the inside of the transmission film.

[0021] In the protection patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the punching area can be tapered based on the thickness direction of the protection patch ribbon.

[0022] In the protection patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the protection patch ribbon may further include: a second buffer portion extending from the image receiving layer in an integral manner and used to fill the punching area.

[0023] In the protective patch ribbon for a thermal transfer printer according to one embodiment of the present invention, the peel strength between the release layer and the layer connected to the release layer and the peel strength between the primer layer and the patch film substrate may be greater than the peel strength between the transmission film and the patch film substrate.

[0024] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, based on the 90-degree peel strength, the peel strength between the transmission film and the patch film substrate may be 4 gf / 25 mm to 8 gf / 25 mm.

[0025] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the bonding layer may include at least one selected from the group consisting of polyester, polyacrylate, polyurethane, polyimide, polybutyral, polyacetal and silicone resin.

[0026] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the release layer may include any one or more selected from the group consisting of polyester, polyacrylate, polyamide, cellulose ester, polyurethane, polyvinyl acetate copolymer, polybutyral, polyacetal and silicone resin.

[0027] In the thermal transfer printer protection patch ribbon according to an embodiment of the present invention, the thickness of the bonding layer and the release layer may be independently 0.5 μm to 5 μm.

[0028] In the protective patch ribbon for a thermal transfer printer according to one embodiment of the present invention, the patch film substrate may be any one or more selected from the group consisting of oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and polycarbonate (PC).

[0029] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the patch film substrate may include an embossed hologram.

[0030] On the other hand, the present invention provides a method for preparing a protective patch ribbon for a thermal transfer printer.

[0031] The method for preparing a protective patch ribbon for a thermal transfer printer according to the present invention comprises: a) a step of preparing a peeling body by coating a bonding layer coating liquid on at least one surface of a transmission film that is repeatedly unwound and wound to form a bonding layer; b) a step of laminating a patch film substrate by laminating it on the bonding layer through a thermal laminator, and then forming a primer layer on the surface opposite to the laminated surface of the patch film substrate to form a structure located on the peeling body; c) a step of forming a patch shape imparting body by forming a punching area on the structure through a punching process to specify the shape of a patch to be transferred to a recorded material; and d) a step of forming an image receiving layer on the patch shape imparting body.

[0032] According to the method for preparing a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, after the above step c), the method may further include a step of forming a release layer by coating a release layer coating liquid on the patch shape imparting body.

[0033] In the method for preparing a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, in the above step b), a structure including a release layer on the primer layer can be formed by coating a release layer coating liquid on the primer layer.

[0034] In the method for preparing a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, for the punching area formed in the above step c), the end of the peeling body side of the above punching area can be sunken into the interior of the above transmission film.

[0035] Effects of the Invention

[0036] The protective patch ribbon for a thermal transfer printer of the present invention includes: a peeling body, which includes a transmission film that is repeatedly unwound and wound and a bonding layer located on at least one surface of the above-mentioned transmission film; a patch shape imparting body, which includes a structure on which a patch film substrate and a primer layer are sequentially stacked on the bonding layer, and the above-mentioned structure includes a punching area; and an image receiving layer, which is located on the patch shape imparting body, and the shape of the patch transferred to the recorded material is specified by the punching area. Therefore, there is no need to set up an additional laminator, and the existing retransfer printer can be used to directly record the image or desired information on the patch shape imparting body, which can effectively prevent physical damage to the recorded object transferred to the recorded material, and can prevent the recorded object transferred to the recorded material from being forged. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a conceptual diagram of a protective patch ribbon according to an embodiment of the present invention.

[0038] Figure 2 is a conceptual diagram of a protective patch ribbon according to another embodiment of the present invention.

[0039] Figure 3 4 is a conceptual diagram of a protective patch ribbon according to another embodiment of the present invention. DETAILED DESCRIPTION

[0040] A protective patch ribbon for a thermal transfer printer and a method for preparing the same according to an embodiment of the present invention will be described in detail with reference to the following drawings.

[0041] The accompanying drawings to be introduced below are provided by way of example so that the concept of the present invention can be fully conveyed to those skilled in the art. Therefore, the present invention is not limited to the accompanying drawings shown below and can also be implemented in other forms. The accompanying drawings shown below may be exaggerated to clarify the concept of the present invention.

[0042] At this time, if the technical terms and scientific terms used have no other definitions, these technical terms and scientific terms have the meanings that are generally understood by technicians in the technical field to which the present invention belongs. In the following description and drawings, the description of related well-known functions and structures will be omitted if it may cause confusion about the main purpose of the present invention.

[0043] Furthermore, unless otherwise indicated herein, the singular forms “a”, “an”, and “the” used in the specification and the appended claims are intended to include the plural forms as well.

[0044] In this specification and the appended claims, terms such as comprising or having mean that the features or constituent elements recorded in the specification are present, and unless specifically limited, the possibility of adding one or more other features or constituent elements is not precluded.

[0045] The protective patch ribbon for a thermal transfer printer provided according to the present invention includes: a peeling body, which includes a transmission film that is repeatedly unwound and wound and a bonding layer located on at least one surface of the above-mentioned transmission film; a patch shape imparting body, which includes a structure in which a patch film substrate and a primer layer are stacked in sequence on the bonding layer, and the above-mentioned structure includes a punching area; and an image receiving layer, which is located on the patch shape imparting body, and the shape of the patch transferred to the recorded material is determined by the punching area.

[0046] The printing of desired information or images (hereinafter referred to as recorded matter) on a recording material by the conventional retransfer printing method is performed by printing the recorded matter on an intermediate transfer medium and then retransferring the coating of the intermediate transfer medium on which the recorded matter is printed to the recording material. However, this method reduces the physical durability of the recorded matter, and therefore, in order to prevent physical damage to the recorded matter retransferred to the recording material, it is essential to use a laminator to additionally attach a protective sheet to the recorded matter transferred to the recording material.

[0047] At this time, the protective patch is also commonly referred to as a clear patch, a clear patch ribbon, a clear patch laminate, a clear laminate patch or ribbon, and an overlaminate clear.

[0048] This protective patch is provided in the form of a transparent patch transferred from a transmission film to a recording material to which a record is transferred, and a roller-shaped protective patch ribbon laminated by heat on the transmission film. The thickness of the protective patch is about 2 to 3 times thicker than that of the intermediate transfer medium.

[0049] Due to the difference in thickness between the protective patch and the intermediate transfer medium, when laminating a relatively thick protective patch in a retransfer printer that can provide less heat than the laminator used to attach the protective patch, there may be a loss of transfer to the recorded material and adhesion. Therefore, an additional printer or laminator is required for the attachment of the protective patch, which reduces the process efficiency.

[0050] On the contrary, a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention includes: a peeling body, which includes a transmission film that is repeatedly unwound and wound and a bonding layer located on at least one surface of the above-mentioned transmission film; a patch shape imparting body, which includes a structure on which a patch film substrate and a primer layer are stacked in sequence, and the above-mentioned structure includes a punching area; and an image receiving layer, which is located on the patch shape imparting body, and the shape of the patch transferred to the recorded material is determined by the punching area. As a result, even if an existing retransfer printer that can provide less heat than the laminator used for the additional protective patch is used, the patch shape imparting body can be peeled off from the peeling body and thermally bonded to the recorded material, so that the recorded matter can be printed on the recorded material with excellent quality, and physical damage to the recorded matter transferred to the recorded material can be effectively prevented.

[0051] Among them, as the recorded material for transferring the recorded matter, any material known in the art can be used without restriction. As an example, the recorded material can include polyvinyl chloride, polyester, polycarbonate or ABS (acrylonitrile butadiene styrene) resin, but is not limited to this.

[0052] Hereinafter, a more detailed description is given with reference to the accompanying drawings.

[0053] Figure 1 4 is a conceptual diagram of a protective patch ribbon 4 according to an embodiment of the present invention.

[0054] like Figure 1 As shown, the protective patch ribbon 4 according to one embodiment of the present invention may include: a peeling body 100, which includes a bonding layer 11 located on a surface of a transmission film 10; a patch shape imparting body 200, wherein a structure in which a patch film substrate 20 and a primer layer 21 are sequentially stacked on the bonding layer 11 includes punching areas 30, 31; and an image receiving layer 23, which is located on the patch shape imparting body 200.

[0055] Furthermore, the protective patch ribbon 4 may include a structure in which the above-mentioned peeling body 100, the patch shape imparting body 200, and the image receiving layer 23 are formed as single bodies, and a plurality of the single bodies are continuously provided in a tape shape.

[0056] At this time, the shape of the patch 2 transferred to the recording material 1 is defined by the punched areas 30 and 31 .

[0057] Specifically, the peeling body 100 is peeled off, and the image receiving layer 23 printed with the recorded matter and the patch shape imparting body 200 are thermally bonded to the surface of the recorded material 1 in sequence, so that the recorded matter can be transferred to the recorded material 1 .

[0058] As a specific example, the transfer film 10 included in the peeling body 100 may be repeatedly unwound and wound.

[0059] Specifically, unlike the existing situation in which a protective patch is laminated in one direction and attached, the protective patch ribbon 4 according to an embodiment of the present invention is provided with an image receiving layer 23 so that an image can be received. At this time, each time the various colors consisting of cyan, magenta, yellow, black (black=key) and silver are printed, the image can be completed by returning to the printing starting point. That is, in order to receive the image on the image receiving layer 23 described later, the transmission film 10 can be repeatedly unwound and wound by the driving roller.

[0060] In one embodiment, the transmission film 10 may include a sensing mark (not shown) for confirming the printing position on at least one surface. In this case, two sensing marks are spaced apart on at least one surface of a single body, so that the range of the printing area can be specified, and black ink commonly used in the art can be used.

[0061] However, when the sensing mark included in the transfer film 10 that is repeatedly unwound and wound comes into contact with the image receiving layer 23 during the winding process, the physical properties of the black ink may be selected according to the physical properties of the image receiving layer 23 .

[0062] As an example, when the transport film 10 is rolled up for printing, if the surface of the image receiving layer 23 in contact with the sensing mark is oily, the sensing mark may include aqueous black ink, and conversely, if the surface of the image receiving layer 23 is aqueous, the sensing mark may include oily black ink.

[0063] As an example, the transmission film 10 may be made of any material known in the art without limitation, and as a non-limiting example, may be polyethylene terephthalate (PET), polyethylene naphthalate (PEN), etc., but is not limited thereto.

[0064] As a specific example, the thickness of the transmission film 10 may be 1 μm to 50 μm, specifically, 10 μm to 30 μm, but the present invention is not limited to the thickness of the transmission film 10 .

[0065] As one embodiment, the bonding layer 11 contained in the peeling body 100 and located on one surface of the transmission film 10 functions to bond the patch film substrate 20 contained in the patch shape imparting body 200 described later and the aforementioned transmission film 10, and to adjust the peeling strength between the patch film substrate 20 and the transmission film 10 so that the patch shape imparting body 200 including the patch film substrate 20 can be peeled off from the peeling body 100 during thermal transfer.

[0066] As a specific example, the bonding layer 11 may include a thermosetting resin, a thermoplastic resin or a photocurable resin, but it is advantageous that the aforementioned resin has no viscosity or very low viscosity after being cured.

[0067] As described above, the transmission film 10 on which the bonding layer 11 is located can be repeatedly unwound and wound by a driving roller so as to receive an image on the image receiving layer 23. However, after the image receiving layer 23 and the patch shape imparting body 200 are thermally bonded and the recorded object is transferred to the recorded material 1, when there is viscosity caused by the bonding layer 11 on one surface of the transmission film 10, it may bring a load to the driving roller that unwinds and winds the transmission film 10, and it may not be possible to accurately reach the printing starting point when printing each color, thereby outputting a blurred image with inaccurate color focus, or when the viscosity is strong, the image receiving layer 23 and the patch shape imparting body 200 may not be completely peeled off from the peeling body 100.

[0068] As a specific example, the bonding layer 11 may include at least one selected from the group consisting of polyester, polyacrylate, polyurethane, polyimide, polybutyral, polyacetal, and silicone resin.

[0069] As an example, the thickness of the bonding layer 11 may be 0.5 μm to 5 μm, specifically, 1 μm to 4 μm, and more specifically, 2 μm to 3 μm.

[0070] Furthermore, in order to adjust the peel strength between the die attach film substrate 20 and the transmission film 10 by the bonding layer 11 located on one surface of the transmission film 10 , one surface of the transmission film 10 may be subjected to corona treatment or plasma treatment.

[0071] In one embodiment, the structure in the patch shape imparting body 200 may include punching areas 30 and 31 , and the structure is formed by sequentially stacking a patch film substrate 20 and a primer layer 21 on the bonding layer 11 included in the peeling body 100 .

[0072] At this time, the transmission film 10 and the patch film substrate 20 can be bonded together by the bonding layer 11, and the peel strength between the transmission film 10 and the patch film substrate 20 can be adjusted according to the bonding process conditions. The bonding process conditions will be described in more detail in the method for preparing a protective patch ribbon for a thermal transfer printer described later.

[0073] In addition, similar to or identical to the method of corona treating or plasma treating one surface of the transmission film 10 in order to adjust the peel strength between the patch film substrate 20 and the transmission film 10, the surface to be bonded in the patch film substrate 20 can also be corona treated or plasma treated.

[0074] In one embodiment, based on the 90-degree peel strength, the peel strength between the transmission film 10 and the patch film substrate 20 can be 4gf / 25mm to 9gf / 25mm, specifically, 5gf / 25mm to 8gf / 25mm, and more specifically, 6gf / 25mm to 7gf / 25mm.

[0075] Since the peel strength between the transfer film 10 and the patch film base 20 satisfies the above-mentioned 90-degree peel strength, the desired recorded matter can be transferred to the recording material 1 with excellent quality.

[0076] Specifically, when the peel strength between the transmission film 10 and the patch film substrate 20 cannot meet the above-mentioned range based on the 90-degree peel strength, the patch film substrate 20 may fall off during the formation of the punching areas 30, 31 and the image receiving layer 23 included in the patch shape imparting body 200 described later, or the image receiving layer 23 and the patch shape imparting body 200 may be incompletely peeled off from the peeling body 100 during the printing of the desired recorded material on the recorded material 1. Therefore, it is preferable that the peel strength between the transmission film 10 and the patch film substrate 20 meets the above-mentioned range based on the 90-degree peel strength.

[0077] When the desired record is printed on the recorded material 1, since the patch film substrate 20 contained in the patch shape imparting body 200 is peeled off from the peeling body 100 and is located on the outermost surface in the shape 2 area of ​​the patch contained in the recorded material 1, physical damage to the record can be effectively prevented.

[0078] In one embodiment, the patch film substrate 20 may be any one or more selected from the group consisting of oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and polycarbonate (PC).

[0079] As a specific example, the thickness of the chip film substrate 20 may be 5 μm to 40 μm, and specifically, may be 10 μm to 30 μm.

[0080] Since the thickness of the patch film substrate 20 satisfies the above range, the recorded matter printed on the record-receiving material 1 can be protected from the external environment and the durability of the recorded matter can be significantly improved.

[0081] As an example, the patch film substrate 20 may include an embossed hologram. Since the patch film substrate 20 includes the embossed hologram, the security of the recorded object transferred to the recorded material 1 can be improved.

[0082] In one embodiment, the structure of the patch shape imparting body 200 may include punched areas 30 and 31 , and the primer layer 21 of the structure is located on the opposite surface to the bonding surface of the patch film substrate 20 to be bonded via the bonding layer 11 .

[0083] At this time, the punching areas 30 and 31 correspond to the area 3 outside the area where the shape 2 of the patch is located in the recorded material 1, which may mean that an area of ​​a portion of the structure in which the patch film substrate 20 and the primer layer 21 are stacked in sequence is removed in a manner corresponding to the entire area 3 outside the area where the shape 2 of the patch contained in the recorded material 1 is located.

[0084] As a specific example, the primer layer 21 included in the patch shape imparting body 200 and located on the patch film substrate 20 can play a role in improving the adhesion between the patch film substrate 20 and the image receiving layer 23 described later, which are provided with the primer layer 21 therebetween.

[0085] At this time, the peeling strength between the patch film substrate 20 and the image receiving layer 23 bonded by the primer layer 21 may be greater than the peeling strength between the aforementioned transmission film 10 and the patch film substrate 20 .

[0086] The primer layer 21 may include, without limitation, any substance known in the art that is located on the patch film substrate 20 and is capable of improving adhesion. As a non-limiting example, the primer layer 21 may include acrylic resin, urethane resin, amide resin, epoxy resin, ionomer resin or rubber resin, etc.

[0087] At this time, the thickness of the primer layer 21 may be 0.1 μm to 5 μm, and specifically, may be 1 μm to 3 μm.

[0088] As an embodiment, the image receiving layer 23 having the function of receiving an image may be located on the patch shape imparting body 200 and bonded to the patch shape 2 region contained in the recorded material 1. Therefore, the image receiving layer 23 needs to have both the image receiving function and the bonding function with the recorded material 1.

[0089] Specifically, the image receiving layer 23 may include, without limitation, any material capable of accommodating sublimation dyes or capable of being printed by a color layer melted from a pigment transfer type thermal transfer ribbon, and in terms of improving adhesion to the recorded material 1, may include one or more selected from the group consisting of vinyl chloride homopolymers, vinyl chloride vinyl acetate copolymers and polyurethane resins.

[0090] In addition, of course, according to needs, the image receiving layer 23 may also include first additives known in the art, such as silicon-based plasticizers, release agents, defoaming agents, leveling agents, polymer waxes, antistatic agents, and the like.

[0091] As an example, the thickness of the image receiving layer 23 may be 0.5 μm to 5 μm, specifically, 1 μm to 4 μm, and more specifically, 1 μm to 3 μm.

[0092] In order to simultaneously perform the image receiving function and the bonding function with the recording material 1, the thickness of the image receiving layer 23 preferably satisfies the above range.

[0093] In addition, the protective patch ribbon 4 may further include a buffer portion (not shown), which extends in an integral manner from the image receiving layer 23 and is used to fill the punching areas 30 and 31 included in the patch shape imparting body 200. In this case, the buffer portion extends in an integral manner from the image receiving layer 23 and may be composed of the same substance as that included in the image receiving layer 23.

[0094] As an embodiment, the protective patch ribbon 4 may further include a release layer, and the release layer is located between the image receiving layer 23 and the primer layer 21 .

[0095] Figure 2 and Figure 3 1 and 2 are diagrams each showing a conceptual diagram of a protective patch ribbon 4 including a release layer 22 according to another embodiment of the present invention.

[0096] First refer to Figure 2 The protective patch ribbon 4 may include: a peeling body 100, which includes a bonding layer 11 located on one surface of a transmission film 10; a patch shape imparting body 200, in which a structure in which a patch film substrate 20 and a primer layer 21 are sequentially stacked on the bonding layer 11 includes a punching area (not shown); a release layer 22, which is located on the patch shape imparting body 200; and an image receiving layer 23, which is located on the release layer 22.

[0097] At this time, the protective patch ribbon 4 may further include a first buffer portion 300 , which extends from the release layer 22 in an integrated manner and is used to fill the punching area.

[0098] Among them, a peeling body 100 includes a bonding layer 11 located on one surface of a transmission film 10; a structure includes a punching area (not shown), a patch film substrate 20 and a primer layer 21 are sequentially stacked on the bonding layer 11, and the structure includes a patch shape imparting body 200 with a punching area (not shown); and an image receiving layer 23, which are the same or similar to the above description, so the detailed description thereof is omitted.

[0099] Since the protective patch ribbon 4 also includes a release layer located on the patch shape imparting body 200 and a first buffer portion 300 extending in an integral manner from the release layer 22 and used to fill the punching area, the printing quality of the recorded material printed in the area 3 outside the area where the shape 2 of the patch contained in the recorded material 1 is located can be improved.

[0100] As a specific example, the first buffer portion 300 may be integrally extended from the release layer 22 and may be made of the same material as that included in the release layer 22 .

[0101] The first buffer portion 300 extends from the release layer 22 in an integral manner and is composed of the same material as that contained in the release layer 22, thereby not only improving the printing quality of the recorded matter at the edge of the shape of the patch 2 contained in the recorded material 1, but also improving the printing quality of the recorded matter transferred to the edge area of ​​the recorded material 1.

[0102] In one embodiment, the peel strength between the release layer 22 and the layers connected to the release layer 22 (image receiving layer and primer layer 21) and the peel strength between the primer layer 21 and the patch film substrate 20 may be greater than the peel strength between the aforementioned transmission film and the patch film substrate.

[0103] Since the above-mentioned conditions are met, the patch film substrate 20 can be peeled off from the peeling body 100 including the bonding layer 11 located on one surface of the transmission film 10, and the image receiving layer 23, the release layer 22, the primer layer 21 and the patch film substrate 20 with the recorded object can be transferred in sequence in a manner corresponding to the shape 2 of the patch contained in the recorded material 1.

[0104] At this time, in the area 3 outside the area where the patch shape 2 included in the recording material 1 is located, the image receiving layer 23 to which the recorded object is transferred and the first buffer portion 300 extending from the release layer 22 in an integrated manner can be re-transferred in sequence.

[0105] As a specific example, the release layer 22 located on the patch shape imparting body 200, that is, located between the image receiving layer 23 and the primer layer 21, can include without restriction any polymer resin whose glass transition temperature and molecular weight can be adjusted by a cold blending process. As a favorable example, the release layer 22 can include any one or more selected from the group consisting of polyester, polyacrylate, polyamide, cellulose ester, polyurethane, polyvinyl acetate copolymer, polybutyral, polyacetal and silicone resin.

[0106] As an example, in order to improve transparency and scratch resistance, the release layer 22 may include polyester and acrylic resin.

[0107] In addition, of course, as required, the release layer 22 may further include a second additive, such as a defoaming agent, a leveling agent, a polymer wax, an ultraviolet light blocking agent, etc., which are well known in the art.

[0108] In one embodiment, the thickness of the bonding layer 11 and the release layer 22 may be independently 0.5 μm to 5 μm.

[0109] At this time, the thickness of the bonding layer 11 can be the same as the thickness described above, and the thickness of the release layer 22 can be 0.5 μm to 5 μm, specifically, 1 μm to 4 μm, and more specifically, 2 μm to 3 μm. Since the thickness of the release layer 22 meets the aforementioned range, it is possible to improve not only the printing quality of the recorded matter at the edge of the shape 2 of the patch included in the recorded material 1, but also the printing quality of the recorded matter transferred to the edge area of ​​the recorded material 1.

[0110] Next refer to Figure 3 The protective patch ribbon 4 may include: a peeling body 100, which includes a bonding layer 11 located on a surface of a transmission film 10; a patch shape imparting body 210, wherein a structure in which a patch film substrate 20, a primer layer 21 and a release layer 22 are sequentially stacked on the bonding layer 11 includes a punching area (not shown); and an image receiving layer 23, which is located on the patch shape imparting body 210.

[0111] At this time, the protection patch ribbon 4 may further include a second buffer portion 310 extending from the image receiving layer 23 in an integral manner and used to fill the punching area.

[0112] The peeling body 100 including the bonding layer 11 on one surface of the transmission film 10 and the image receiving layer 23 are the same or similar to the above description, so the detailed description thereof is omitted.

[0113] Since the protective patch ribbon 4 includes: a patch shape imparting body 210, in which a structure in which a patch film substrate 20, a primer layer 21 and a release layer 22 are sequentially stacked on a bonding layer 11 includes a punching area (not shown); and an image receiving layer 23, which is located on the patch shape imparting body 210, and also includes a second buffer portion 310, which extends from the image receiving layer 23 in an integrated manner and is used to fill the punching area, the printing quality of the recorded material printed in the area 3 outside the area where the shape 2 of the patch contained in the recorded material 1 is located can be further improved.

[0114] At this time, the punching area may mean an area in which a part of a structure in which a patch film substrate 20, a primer layer 21 and a release layer 22 are stacked in sequence is removed in a manner corresponding to the edge surface where the shape 2 of the patch in the recorded material 1 is located, and the second buffer portion 310 extending from the image receiving layer 23 in an integrated manner and used to fill the punching area may be composed of the same substance as that contained in the image receiving layer 23. The substance contained in the image receiving layer 23 is the same as or similar to the aforementioned substance, so its detailed description is omitted.

[0115] Specifically, the structure included in the patch shape imparting body 210 includes the release layer 22 , and the end of the punching region included in the structure on the release body side may be sunken into the inside of the transfer film 10 .

[0116] As a specific example, based on the overall thickness T of the transfer film 10 , the end of the punching region on the peeling body side may be sunk by 0.2T to 0.8T, specifically, by 0.3T to 0.6T, and more specifically, by 0.4T to 0.5T.

[0117] As mentioned above, since the end of the peeling body side of the punching area meets the above-mentioned range and is sunken into the interior of the transmission film 10, the above-mentioned punching area is filled with a second buffer portion 310 composed of the same substance as the substance contained in the image receiving layer 23, and the second buffer portion 310 extends from the image receiving layer 23 in an integrated manner. Therefore, it has the advantage of improving the structural stability of the protective patch ribbon 4 and being able to transfer the recorded matter without damage when printing the recorded matter onto the recorded material 1.

[0118] In addition, the image receiving layer 23 is located on the patch shape imparting body 210, and the patch shape imparting body 210 is sequentially stacked with a patch film substrate 20, a primer layer 21 and a release layer 22. The structure includes a punching area, and the punching area is filled with a second buffer portion 310 extending from the image receiving layer 23 in an integrated manner. Therefore, the printing quality of the recorded material printed in the area 3 outside the area where the shape 2 of the patch contained in the recorded material 1 is located can be further improved.

[0119] In one embodiment, the punching area can be tapered based on the thickness direction of the protection patch ribbon.

[0120] In detail, the shape of the punching area can be a tapered shape in which the width of the end of the punching area on the peeling body side is narrower than the width of the other end on the other side. In this case, the end of the punching area on the peeling body side can exist in a closed form at a position intersecting with the center line of the punching area, and the center line can be positioned to coincide with the edge line where the shape 2 of the patch is located in the recording material 1.

[0121] In more detail, the shape of the punching area may include an outer contour line K of the punching area, which is connected to two ends of the punching area and is bilaterally symmetrical with respect to a center line L located at the center of the punching area.

[0122] As a specific example, the angles L and K at the intersection of the end of the punching area on the peeling body side and the center line L can be 5 to 45 degrees, specifically, 10 to 40 degrees, and more specifically, 20 to 30 degrees.

[0123] When the angle between the center line L and the outer contour line K of the punching area is less than 5 degrees, even if a second buffer portion 310 is included that extends from the image receiving layer 23 in an integrated manner and is used to fill the punching area, there will be limitations in improving the structural stability of the protective patch ribbon 4. When the angle between L and K exceeds 45 degrees, although the structural stability of the protective patch ribbon 4 can be improved, there are limitations in improving the printing quality of the recorded material printed in the area 3 outside the area where the shape 2 of the patch contained in the recorded material 1 is located. Therefore, it is preferable that the angle between the center line L and the outer contour line K of the punching area meets the above range.

[0124] In addition, when the angle between the center line L and the outer contour line K of the punching area is in the range of 20 degrees to 30 degrees, it has the following advantages: while improving the structural stability of the protective patch ribbon 4, the recorded material printed with high quality in the area 3 outside the area where the shape 2 of the patch contained in the recorded material 1 is located can also be protected from physical damage.

[0125] The invention provides a method for preparing a protective patch ribbon for a thermal transfer printer.

[0126] The method for preparing a protective patch ribbon for a thermal transfer printer according to the present invention comprises: a) a step of preparing a peeling body by coating a bonding layer coating liquid on at least one surface of a transmission film that is repeatedly unwound and wound to form a bonding layer; b) a step of laminating a patch film substrate on the bonding layer, and then forming a primer layer on the surface opposite to the laminated surface of the patch film substrate to form a structure located on the peeling body; c) a step of forming a patch shape imparting body by forming a punching area on the structure by a blanking process to define the shape of a patch to be transferred to a recorded material; and d) a step of forming an image receiving layer on the patch shape imparting body.

[0127] Hereinafter, the method for preparing the protective patch ribbon for the thermal transfer printer will be described in detail according to each step.

[0128] First, a bonding layer coating liquid is applied on at least one surface of a transfer film that is repeatedly unwound and wound to form a bonding layer, thereby preparing a peelable body.

[0129] In a specific example, the bonding layer coating liquid may be a mixture of a mixed resin including an acrylic resin and a polyester or a reaction resin including a modified acrylic resin and a curing agent and a solvent.

[0130] As a specific example, the weight ratio of the acrylic resin to the polyester contained in the mixed resin may be 1:0.01 to 0.2, and specifically, may be 1:0.05 to 0.1.

[0131] The weight ratio of the modified acrylic resin to the curing agent in the reaction resin may be 1:0.1 to 0.5, specifically, 0.1 to 0.3. The curing agent may include an isocyanate curing agent.

[0132] Since the bonding layer coating liquid contains a mixed resin or a reactive resin satisfying the above weight ratio, when printing is performed using an existing retransfer printer, the patch film substrate contained in the patch shape imparting body formed in the patch shape imparting body forming step described later can be smoothly peeled off from the peeling body, so that the desired recorded matter can be transferred to the recorded material with excellent quality. That is, the printing quality can be improved by adjusting the peeling strength between the patch film substrate and the transfer film.

[0133] As an example, the solvent may be contained in the bonding layer coating liquid at 60 wt % to 90 wt %, specifically 70 wt % to 80 wt %, based on the total weight of the bonding layer coating liquid.

[0134] In this case, the solvent may be a single solvent or a mixed solvent of two or more selected from the group consisting of methyl ethyl ketone, dichloromethane, chloroform, ethyl acetate, isopropyl acetate, isobutyl acetate, xylene and toluene.

[0135] The bonding layer can be formed by coating the bonding layer coating liquid on at least one surface of the transmission film, wherein the coating method can be any method known in the art without restriction. As non-limiting examples, spray coating, gravure coating, micro-gravure coating, rod coating, slit die coating, roller coating and the like can be used to coat the bonding layer coating liquid on at least one surface of the transmission film, but the present invention is not limited to the coating method.

[0136] After the bonding layer coating liquid is applied, a drying process may be performed, and the drying process may be performed at a temperature of 80° C. to 120° C., specifically, at a temperature of 100° C. to 120° C. for 1 minute to 3 minutes. After the drying process, for curing and depending on the type of the bonding layer coating liquid, a post-curing curing process may be performed at a temperature of 60° C. to 80° C. for 12 hours to 30 hours.

[0137] Since the post-curing process is performed after the drying process, the patch film base material included in the patch shape imparting body formed after the laminating process described later can be smoothly peeled off from the peeling body.

[0138] Next, a die-attachment film substrate is stacked on the bonding layer and then laminated by a heat laminator, and a primer layer is formed on the surface of the die-attachment film substrate opposite to the laminated surface, thereby forming a structure located on the above-mentioned peeled body.

[0139] At this time, the bonding by the heat laminator can be carried out at a temperature of 135°C to 145°C and a conveying speed of 1m / min to 15m / min, specifically 8m / min to 12m / min, or at a temperature of 145.1°C to 155°C and a conveying speed of 1m / min to 9m / min, specifically 3m / min to 7m / min.

[0140] Under the above conditions, the peel strength between the patch film substrate and the transfer film laminated with a bonding layer in between by a hot laminator is adjusted so that when printing is performed using a retransfer printer, the patch film substrate contained in the patch shape imparting body formed in the patch shape imparting body forming step described later can be smoothly peeled off from the peeling body.

[0141] If the laminating conditions of the above-mentioned heat laminator are not met, when printing is performed using a retransfer printer, the patch film substrate may not be completely peeled off from the peeling body or only the primer layer contained in the patch shape imparting body described later or the image receiving layer located on the patch shape imparting body may be partially peeled off, thereby reducing the printing quality and failing to protect the recorded material transferred to the recorded material from the influence of the external environment. Therefore, it is advisable that the laminating conditions of the heat laminator meet the above-mentioned conditions.

[0142] After the patch film substrate and the transmission film are laminated by a heat laminator, a primer coating liquid is applied to the surface opposite to the laminated surface of the patch film substrate to form a primer layer, thereby forming a structure located on the peeling body. That is, the structure can be a laminated structure in which the primer layer is placed on the surface opposite to the laminated surface of the patch film substrate.

[0143] At this time, the primer layer may be formed by coating the primer layer coating liquid and drying it, and the coating method and the drying method may be the same as or similar to the coating method and the drying method of the above-mentioned bonding layer coating liquid.

[0144] As an example, the primer coating liquid may include a modified acrylic resin, a curing agent, and a solvent. The curing agent and the solvent included in the primer coating liquid may be the same as or similar to the curing agent and the solvent included in the bonding layer.

[0145] As a specific example, the weight ratio of the modified acrylic resin: the curing agent contained in the primer layer coating liquid may be 1:0.01 to 0.095, specifically 0.05 to 0.09.

[0146] Since the weight ratio of the modified acrylic resin: curing agent contained in the primer layer coating liquid satisfies the above-mentioned range, the peel strength between the primer layer and the patch film substrate is greater than the peel strength between the patch film substrate and the transfer film bonded together with the bonding layer in between. Therefore, when printing is performed using a retransfer printer, the patch film substrate contained in the patch shape imparting body formed in the patch shape imparting body forming step described later can be smoothly peeled off from the peeling body, thereby improving the printing quality.

[0147] Next, a punching area is formed in the structure by a punching process so as to define the shape of the patch to be transferred onto the recording material, thereby forming a patch shape imparting body.

[0148] At this time, the punching area may mean an area where a part of a structure in which a film substrate and a primer layer are sequentially stacked is removed by a punching process in a manner corresponding to the entire area other than the shape of a desired patch.

[0149] The punching process may be performed without limitation using any method known in the art. For example, a rotary die cutter may be used to perform the punching process, but the present invention is not limited thereto.

[0150] Next, an image receiving layer is formed on the patch shape imparting body having a punched area formed on the structural body.

[0151] The image receiving layer may be formed by coating an image receiving layer coating liquid and drying it, and the coating method and the drying method may be the same as or similar to the coating method and the drying method of the above-mentioned bonding layer coating liquid.

[0152] As a specific example, the image receiving layer coating liquid may be obtained by containing at least one selected from the group consisting of vinyl chloride homopolymer, vinyl chloride-vinyl acetate copolymer and polyurethane resin in a solvent.

[0153] As a specific example, based on the total weight of the image receiving layer coating liquid, the image receiving layer coating liquid may contain 15 wt % to 40 wt %, specifically 20 wt % to 30 wt % of vinyl chloride-vinyl acetate copolymer. In this case, the solvent may be the same as or similar to the aforementioned solvent.

[0154] As a favorable example, before forming the image receiving layer, that is, after forming the patch shape imparting body, a step of forming a release layer by coating a release layer coating liquid on the patch shape imparting body may be further included.

[0155] A release layer is formed by coating a release layer coating liquid on a patch shape imparting body including a punching area in the above-mentioned structure, so that the release layer coating liquid can also be coated on the punching area and fill the punching area. Therefore, it has the advantage of being able to improve the printing quality of the recorded matter printed in the area outside the area where the shape of the patch included in the recorded material is located.

[0156] As a specific example, the release layer coating liquid may include acrylic resin, polyester and solvent.

[0157] As a specific example, the weight ratio of the acrylic resin to the polyester contained in the release layer coating liquid may be 1:0.1 to 0.3, specifically, 1:0.1 to 0.2.

[0158] The solvent may be the same as or similar to the aforementioned solvent, and based on the total weight of the release layer coating liquid, may contain 60 wt % to 90 wt %, specifically 70 wt % to 80 wt % of the solvent.

[0159] As a more advantageous example, after coating the release layer coating liquid on the primer layer to form a structure including a release layer on the primer layer, a punching area can be formed on the structure through a punching process to define the shape of the patch transferred to the recorded material, thereby forming a patch shape imparting body.

[0160] At this time, in the punched area, the end portion of the punched area on the peeling body side may be sunk into the inside of the transfer film included in the peeling body.

[0161] In detail, the punching area formed by the punching process may have a tapered shape in which the width of the end portion on the peeling body side of the punching area is narrower than the width of the other end portion on the other side, and the end portion on the peeling body side of the punching area may exist in a closed form at a position intersecting with the center line of the punching area. At this time, the punching process may be performed so that the end portion on the peeling body side of the punching area existing in a closed form is sunken by 0.2T to 0.8T, specifically 0.3T to 0.6T, and more specifically 0.4T to 0.5T based on the overall thickness T of the transfer film.

[0162] The blanking area formed by this blanking process is similar to the above-mentioned Figure 3 The punching areas shown are the same or similar, so a detailed description thereof is omitted.

[0163] As described above, in a structure in which a patch film substrate, a primer layer and a release layer are sequentially stacked, the patch shape imparting body including the aforementioned conical-shaped punching area is coated with the aforementioned image receiving layer coating liquid to form an image receiving layer, so that the conical-shaped punching area is also coated and filled with the image receiving layer coating liquid, thereby further improving the printing quality of the recorded matter printed in the area outside the area where the shape of the patch contained in the recorded material is located.

[0164] Hereinafter, the thermal transfer printer protective patch ribbon and the preparation method thereof according to the present invention are described in detail by way of examples. However, the following examples are only a reference for describing the present invention in detail, and the present invention is not limited thereto and can be embodied in various forms.

[0165] In addition, unless otherwise defined, all technical terms and scientific terms have the same meaning as those commonly understood by one of ordinary skill in the art to which the present invention belongs. In this article, the terms used for illustration are only used to effectively describe specific embodiments and are not intended to limit the present invention. In addition, the unit of additives not specifically recorded in the specification may be weight %.

[0166] (Preparation Example 1) Preparation of the first bonding layer coating liquid

[0167] A first bonding layer coating liquid was prepared by mixing 2 wt % of an amorphous copolyester (VYLON 600, Toyobo), 21 wt % of an acrylic resin (BR-83, Mitsubishi Chemical), 38.5 wt % of methyl ethyl ketone, and 38.5 wt % of toluene.

[0168] (Preparation Example 2) Preparation of the Second Bonding Layer Coating Liquid

[0169] A second bonding layer coating liquid was prepared by mixing 5 wt % of an amorphous copolyester (VYLON 600, Toyobo), 18 wt % of an acrylic resin (BR-83, Mitsubishi Chemical), 38.5 wt % of methyl ethyl ketone, and 38.5 wt % of toluene.

[0170] (Preparation Example 3) Preparation of the Third Bonding Layer Coating Liquid

[0171] A third bonding layer coating liquid was prepared by mixing 19.3 wt % of a modified acrylic resin (hydroxyl value: 27 mg / KOH), 2.5 wt % of a multifunctional isocyanate (TKA-100, Asahi Kasei), 39.1 wt % of toluene, 23.1 wt % of methyl ethyl ketone, and 16 wt % of ethyl acetate.

[0172] (Preparation Example 4) Preparation of the Fourth Bonding Layer Coating Liquid

[0173] A fourth bonding layer coating liquid was prepared by mixing 21.5 wt % of a modified acrylic resin (hydroxyl value: 27 mg / KOH), 1 wt % of a multifunctional isocyanate (TKA-100, Asahi Kasei), 38.8 wt % of toluene, 20.7 wt % of methyl ethyl ketone, and 18 wt % of ethyl acetate.

[0174] (Preparation Example 5) Preparation of primer coating liquid

[0175] A primer coating liquid was prepared by mixing 20.2 wt % of a modified acrylic resin (hydroxyl value: 27 mg / KOH, Tg: 60 degrees), 1.9 wt % of a multifunctional isocyanate (TKA-100, Asahi Kasei), 39 wt % of toluene, 22 wt % of methyl ethyl ketone and 16.9 wt % of ethyl acetate.

[0176] (Preparation Example 6) Preparation of the first release layer coating liquid

[0177] A first release layer coating liquid was prepared by mixing 3 wt % of an amorphous copolyester (VYLON 600, Toyobo), 21 wt % of an acrylic resin (BR-83, Mitsubishi Chemical), 38.5 wt % of methyl ethyl ketone and 38.5 wt % of toluene.

[0178] (Preparation Example 7) Preparation of the Second Release Layer Coating Liquid

[0179] A second release layer coating liquid was prepared by mixing 6 wt % of an amorphous copolyester (VYLON 600, Toyobo), 17 wt % of an acrylic resin (BR-83, Mitsubishi Chemical), 38.5 wt % of methyl ethyl ketone and 38.5 wt % of toluene.

[0180] (Preparation Example 8) Preparation of Image Receiving Layer Coating Liquid

[0181] An image receiving layer coating liquid was prepared by mixing 25 wt % of vinyl chloride-vinyl acetate copolymer resin SOLBIN CNL (90 wt % of vinyl chloride, 10 wt % of vinyl acetate, Nissin Chemical Industries), 0.1 wt % of silicon additive (KF-410, Shin-Etsu Chemical), and 74.8 wt % of methyl ethyl ketone.

[0182] (Example 1)

[0183] A polyethylene terephthalate film having a thickness of 19 μm was used as a substrate of the transfer film, and a first bonding layer coating liquid was applied to one surface of the substrate at a thickness of 2 μm by micro gravure coating to form a bonding layer, thereby preparing a peeling body.

[0184] As the base material of the patch film, one surface of a double-sided corona-treated 16 μm thick polyethylene terephthalate film was laminated with the bonding layer surface of the aforementioned 19 μm transmission film, and then bonded in a hot laminator at a temperature of 150°C and a moving speed of 5 m / min.

[0185] A primer layer having a thickness of 1 μm was formed by coating the primer layer coating liquid on the surface opposite to the bonding surface of the bonded patch film by micro gravure coating, thereby preparing a structure.

[0186] A portion of the prepared structure is removed by punching using a rotary die cutter, and a patch shape imparting body is formed in such a way that a patch shape smaller than the CR80 (86 mm×54 mm) specification is defined by a punched area formed by removing the entire area other than the desired patch shape.

[0187] Thereafter, an image receiving layer coating liquid was coated on the formed patch shape imparting body by micro gravure coating to form an image receiving layer having a thickness of 2 μm, thereby preparing a protection patch ribbon for a thermal transfer printer.

[0188] (Example 2)

[0189] The same method as in Example 1 was used except that the first release layer coating liquid and the image receiving layer coating liquid were sequentially coated on the formed patch imparting body using a micro-gravure coating method to form a release layer and an image receiving layer with a thickness of μm and 2 μm, respectively.

[0190] (Example 3)

[0191] The same method as in Example 1 was carried out, but after forming the primer layer, the first release layer coating liquid was applied on the primer layer to form a release layer with a thickness of 2.5 μm, thereby preparing a structure.

[0192] After that, a part of the prepared structure is removed by a punching process using a rotary die cutter so as to define a patch shape smaller than the CR80 (86 mm×4 mm) specification, and a patch shape imparting body including a punching area with a tapered shape whose area is narrowed below is formed. At this time, the end of the peeling body side of the punching area is located on the center line of the punching area in a closed form, the edge of the patch shape is positioned to coincide with the center line, and the end of the peeling body side of the punching area is sunken 40% of the thickness based on the overall thickness of the transfer film.

[0193] In addition, the outer contour line in the punching area is positioned symmetrically with respect to the center line. At this time, it was confirmed that the angle between the center line and the outer contour line at the closed position of the punching area was 25 degrees.

[0194] Next, an image receiving layer coating liquid was coated on the formed patch shape imparting body by micro gravure coating to form an image receiving layer with a thickness of 2 μm, thereby preparing a protection patch ribbon for a thermal transfer printer.

[0195] (Example 4)

[0196] The same process as Example 3 is carried out except that after using the third bonding layer coating liquid to form a bonding layer with a thickness of 3 μm, the patch film and the transfer film are bonded together with the bonding layer in between in a hot laminator at a temperature of 140°C and a moving speed of 10 m / min.

[0197] (Example 5)

[0198] The same process as Example 2 is carried out except that after using the third bonding layer coating liquid to form a bonding layer with a thickness of 3 μm, the patch film and the transfer film are bonded together with the bonding layer in between in a hot laminator at a temperature of 140°C and a moving speed of 10 m / min.

[0199] (Example 6)

[0200] The same method as in Example 3 was used except that the end portion of the punched region on the peeling body side was sunken by 20% of the thickness based on the entire thickness of the transfer film.

[0201] (Example 7)

[0202] The same method as in Example 3 was used except that the punching region was formed so that the angle between the center line and the outer contour line at the closed position of the punching region was 60 degrees.

[0203] (Example 8)

[0204] The same process as in Example 3 was carried out except that a 16 μm thick embossed hologram film which was corona-treated on both sides was used as the substrate of the patch film.

[0205] (Comparative Example 1)

[0206] The same process as in Example 3 was carried out except that the bonding layer was formed by coating the second bonding layer coating liquid.

[0207] (Comparative Example 2)

[0208] The same process as in Example 4 was carried out except that the bonding layer was formed by coating the fourth bonding layer coating liquid.

[0209] (Comparative Example 3)

[0210] The same method as in Example 4 was followed except that the die film and the transfer film were laminated with an adhesive layer interposed therebetween in a heat laminator at a temperature of 150° C. and a moving speed of 10 m / min.

[0211] (Comparative Example 4)

[0212] The same process as in Example 2 was carried out except that the release layer was formed by coating the second release layer coating liquid.

[0213] (Comparative Example 5)

[0214] The same process as in Example 3 was carried out except that the punching process for forming the patch shape imparting body was carried out after the image receiving layer was formed.

[0215] (Comparative Example 6)

[0216] The same method as in Example 3 was used except that the punching process was not performed, that is, the punching area was not formed.

[0217] (Experimental example)

[0218] For each of the prepared thermal transfer printer protective patch ribbons, the 90-degree peel strength between the patch film and the transfer film bonded together with an adhesive layer in between by a heat laminator was measured, and the results are summarized in Table 1.

[0219] Furthermore, in order to confirm the printing quality of each thermal transfer printer protective patch ribbon, a printing process was performed using a retransfer printer (DC-7600, DASCOM) on a polyvinyl chloride card (CR80 specification) as a recording material. At this time, printing was performed at a temperature of 202°C and a speed of 20 mm / sec.

[0220] At this time, the printing quality was evaluated by confirming the adhesion between the chip film and the record-receiving material and the edge transfer property of the record-receiving material. The evaluation criteria were as follows.

[0221] (Evaluation of Adhesion Between Chip Film and Recorded Material)

[0222] The printed state on the recording material after the printing process was observed, and after 1 hour, the patch film was forcibly peeled off from the recording material to check whether it was torn.

[0223] O: Part of the patch film is torn

[0224] NG: The patch film is peeled off but not torn

[0225] X: Not printed, or the patch film is not transferred to the recorded material, and only the image receiving layer or the release layer and the image receiving layer are transferred

[0226] (Edge transfer)

[0227] The state of printing on the edge of the recording material on which the printing process was performed, that is, on the area outside the patch shape, was observed.

[0228] GOOD: The punched area is not visible and edge printing is possible

[0229] PASS: The punched area is visible, but edge printing is possible

[0230] NG: Punched area is visible and edges are not fully printed

[0231]

Table 1

[0232]

[0233] Referring to the results in Table 1, it can be confirmed that when printing is performed using an existing retransfer printer, the printing quality when using the protective patch ribbon is the best in Examples 3 and 4. On the contrary, it was confirmed that even if a punching area similar to that in Example 3 was included, different printing qualities were shown depending on the shape of the punching area.

[0234] In comparison, it was observed that in the case of Comparative Example 6 which did not include a punching area, the patch film was torn during the printing process, and the adhesion between the patch film and the recorded material and the edge transferability were the most inferior, and when the 90-degree peel strength between the bonded patch film and the transmission film exceeded 9gf / 25mm, the adhesion characteristics between the patch film and the recorded material showed inferiority.

[0235] Furthermore, it was confirmed that the order in which the punching process for forming the punched area is performed has an influence on the edge transferability.

[0236] As described above, the present invention has been described through specific contents and limited embodiments, but these are only provided for a more comprehensive understanding of the present invention, and the present invention is not limited to the above embodiments. For technicians in the technical field to which the present invention belongs, various modifications and changes can be made through these records.

[0237] Therefore, the idea of ​​the present invention should not be limited to the described embodiments, and the scope of the following claims and all modifications equivalent or equivalent to the scope of the claims should fall within the scope of the idea of ​​the present invention.

Claims

1. A protective patch ribbon for a thermal transfer printer, wherein: include: A peeling body, comprising a transmission film that is repeatedly unwound and wound and a bonding layer at least on one surface of the transmission film; a patch shape imparting body, comprising a structure in which a patch film substrate and a primer layer are sequentially laminated on the bonding layer, and the structure comprises a punching area; and an image receiving layer, which is located on the patch shape imparting body, Furthermore, the shape of the patch transferred onto the recording material is defined by the punched area.

2. The thermal transfer printer protective patch ribbon according to claim 1, wherein: The transmission film and the patch film substrate are bonded together by the bonding layer.

3. The thermal transfer printer protective patch ribbon according to claim 2, wherein: Also includes: A release layer is located between the image receiving layer and the primer layer.

4. The thermal transfer printer protective patch ribbon according to claim 3, wherein: The invention also includes: a first buffer portion, which extends from the release layer in an integral manner and is used to fill the punching area.

5. The thermal transfer printer protective patch ribbon according to claim 3, wherein: The structural body includes the release layer, and an end portion of the punching region on the release body side is sunken into the interior of the transfer film.

6. The thermal transfer printer protective patch ribbon according to claim 5, wherein: The punching area is tapered based on the thickness direction of the protection patch ribbon.

7. The thermal transfer printer protective patch ribbon according to claim 6, wherein: The protection patch ribbon further includes a second buffer portion extending in an integral manner from the image receiving layer and used to fill the punched area.

8. The thermal transfer printer protective patch ribbon according to claim 3, wherein: The peeling strength between the release layer and the layer connected to the release layer and the peeling strength between the primer layer and the patch film substrate are greater than the peeling strength between the transmission film and the patch film substrate.

9. The thermal transfer printer protective patch ribbon according to claim 8, wherein: Based on the 90-degree peel strength, the peel strength between the transmission film and the patch film substrate is 4 gf / 25 mm to 8 gf / 25 mm.

10. The thermal transfer printer protective patch ribbon according to claim 1, wherein: The bonding layer includes at least one selected from the group consisting of polyester, polyacrylate, polyurethane, polyimide, polybutyral, polyacetal and silicone resin.

11. The thermal transfer printer protective patch ribbon according to claim 3, wherein: The release layer includes at least one selected from the group consisting of polyester, polyacrylate, polyamide, cellulose ester, polyurethane, polyvinyl acetate copolymer, polybutyral, polyacetal and silicone resin.

12. The thermal transfer printer protective patch ribbon according to claim 3, wherein: The thickness of the bonding layer and the release layer are independently 0.5 μm to 5 μm.

13. The protective patch ribbon for a thermal transfer printer according to claim 1, wherein: The patch film substrate is any one or more selected from the group consisting of oriented polypropylene, polyethylene terephthalate, polyethylene naphthalate and polycarbonate.

14. The thermal transfer printer protective patch ribbon according to claim 13, wherein: The patch film substrate includes an embossed hologram.

15. A method for preparing a protective patch ribbon for a thermal transfer printer, wherein: include: a) a peeling body preparation step of coating a bonding layer coating liquid on at least one surface of a transmission film that is repeatedly unwound and wound to form a bonding layer; b) after laminating the patch film substrate on the bonding layer, laminating them by a heat laminator, and then forming a primer layer on the surface opposite to the laminating surface in the patch film substrate, thereby forming a structure located on the peeling body; c) a patch shape imparting body forming step of forming a punching area in the structure by a punching process so as to define the shape of the patch to be transferred to the recorded material; and d) A step of forming an image receiving layer on the patch shape imparting body.

16. The method for preparing a protective patch ribbon for a thermal transfer printer according to claim 15, wherein: After the step c), the method further includes: forming a release layer by coating a release layer coating liquid on the patch shape imparting body.

17. The method for preparing a protective patch ribbon for a thermal transfer printer according to claim 15, wherein: In the step b), a release layer coating liquid is coated on the primer layer to form a structure including a release layer on the primer layer.

18. The method for preparing a protective patch ribbon for a thermal transfer printer according to claim 17, wherein: With respect to the punching area formed in the step c), an end portion of the punching area on the peeling body side is sunken into the interior of the transfer film.

Images