Protective Patch Ribbon for Thermal Transfer Printer and Method for Manufacturing the Same

Abstract

The present invention relates to a protective patch ribbon for a thermal transfer printer that can directly record an image or target information on a patch-shaped applicator without using a separate laminator and with a conventional retransfer printer, can effectively prevent physical damage to the recorded matter transferred to the recording material, and can prevent forgery of the recorded matter transferred to the recording material. The protective patch ribbon includes a transport film on which rewinding and winding are repeated, and a release body including an adhering layer located on at least one surface of the transport film. The release body includes a structure in which a patch film base material and a primer layer are sequentially laminated on the adhering layer. The structure includes a patch-shaped applicator including a punching region, and an image receiving layer located on the patch-shaped applicator. The shape of the patch transferred to the recording material is defined by the punching region.

Description

Technical Field

[0001] The present invention relates to a protective patch ribbon for a thermal transfer printer and a method for manufacturing the same. Specifically, the present invention relates to a protective patch ribbon for a thermal transfer printer that can protect the record transferred to the recording material and prevent forgery of the transferred record, and can perform image printing with excellent quality up to the edge region of the recording material using a conventional retransfer printer, and a method for manufacturing the same.

Background Art

[0002] In order to record information on various plastic cards such as credit cards and transportation IC cards, or identity cards such as resident registration cards and driver's licenses, an image is printed on a recording material such as a plastic card or an identity card.

[0003] Among such printing methods, the direct transfer method of directly printing an image on the recording material has a limit in that the printing quality of the edge portion of the recording material deteriorates.

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

[0005] However, in order to prevent physical damage to the record retransferred to the recording material, a step of adding a protective patch to the record transferred to the recording material is essential. Generally, the protective patch is provided in the form of a protective patch ribbon in which a film coated with a thermal adhesive layer on a transport film is laminated, and then laminated in one direction and coated on the record retransferred to the recording material. Thus, in order to attach the protective patch to the record, a separate printer or laminator is required, which causes a problem of reduced process efficiency.

[0006] Therefore, without a separate laminator, by using a conventional retransfer printer, not only image printing but also having a physical protection function for the printed image, it is possible to simultaneously replace the conventional protection patch and the retransfer intermediate transfer medium, and there is a need for a new protection patch ribbon for a thermal transfer printer that can perform image printing with excellent quality.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] An object of the present invention is to provide a protection patch ribbon for a thermal transfer printer that can effectively prevent physical damage to a record transferred to a recording material by using a conventional retransfer printer without a separate laminator.

[0009] Another object of the present invention is to provide a protection patch ribbon for a thermal transfer printer that can prevent forgery of a record transferred to a recording material.

[0010] Still another object of the present invention is to provide a protection patch ribbon for a thermal transfer printer that can perform image printing with excellent quality up to the edge region of a recording material.

[0011] Another object of the present invention is to provide a method for manufacturing the above-mentioned protection patch ribbon for a thermal transfer printer.

Means for Solving the Problems

[0012] The protective patch ribbon for a thermal transfer printer provided by the present invention includes a transport film that repeats rewinding and winding, and a release body including an adhering layer located on at least one surface of the transport film. The structure includes a patch film base material and a primer layer sequentially laminated on the adhering layer. The structure includes a patch shape imparting body including a punching region, and an image receiving layer located on the patch shape imparting body. The shape of the patch transferred to the recording material is defined by the punching region.

[0013] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the transport film and the patch film base material are adhered together by the adhering layer.

[0014] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, it further includes a release layer located between the image receiving layer and the primer layer.

[0015] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, it further includes a first buffer portion that integrally extends from the release layer and fills the punching region.

[0016] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the structure includes the release layer, and the end portion of the punching region on the release body side is included inside the transport film.

[0017] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the punching region is tapered with respect to the thickness direction of the protective patch ribbon.

[0018] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the protective patch ribbon further includes a second buffer portion that integrally extends from the image receiving layer and fills the punching region.

[0019] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the peeling strength between the release layer and the layer in contact with the release layer, and the peeling strength between the primer layer and the patch film substrate are greater than the peeling strength between the transport film and the patch film substrate.

[0020] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the peeling strength between the transport film and the patch film substrate is 4 to 8 gf / 25 mm based on the 90-degree peeling strength.

[0021] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the adhering layer contains any one or more selected from the group consisting of polyester, polyacrylate, polyurethane, polyimide, polybutyral, polyacetal, and silicone resin.

[0022] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the release layer contains any one or more selected from the group consisting of polyester, polyacrylate, polyamide, cellulose ester, polyurethane, polyvinyl acetate copolymer, polybutyral, polyacetal, and silicone resin.

[0023] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the thicknesses of the adhering layer and the release layer are 0.5 to 5 μm independently of each other.

[0024] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the patch film substrate is any one or more selected from the group consisting of oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polycarbonate (PC).

[0025] In the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, the patch film substrate includes an embossed hologram.

[0026] As another aspect, the present invention provides a method for manufacturing a protective patch ribbon for a thermal transfer printer.

[0027] The method for manufacturing a protective patch ribbon for a thermal transfer printer according to the present invention includes: a) a preparation step of forming a release body by applying an adhesion layer coating liquid to at least one surface of a transport film in which rewinding and winding are repeated; b) laminating a patch film base material on the adhesion layer, pasting the papers by a heat bonding machine, and then forming a primer layer on the opposite surface of the pasted surface of the patch film base material, a step of forming a structure located on the release body; c) a step of forming a punching region on the structure through a punching process so as to define the shape of a patch to be transferred to a recording material, a step of forming a patch shaper; and d) a step of forming an image receiving layer on the patch shaper.

[0028] In the method for manufacturing a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, after the step c), the method further includes a step of applying a release layer coating liquid on the patch shaper to form a release layer.

[0029] In the method for manufacturing a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, in the step b), a release layer coating liquid is applied on the primer layer to form a structure including a release layer on the primer layer.

[0030] In the method for manufacturing a protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention, in the punching region formed in the step c), the end portion on the release body side of the punching region is included inside the transport film.

Effects of the Invention

[0031] The protective patch ribbon for a thermal transfer printer of the present invention includes a release body including a transport film that is repeatedly rewound and wound, and an adhering layer located on at least one surface of the transport film, and a structure in which a patch film base material and a primer layer are sequentially laminated on the adhering layer. The structure includes a patch shape giver including a punching area, and an image receiving layer located on the patch shape giver. By defining the shape of the patch transferred to the recording material by the punching area, without using a separate laminator, it is possible to directly record an image or target information on the patch shape giver using a conventional retransfer printer, effectively prevent physical damage to the recorded matter transferred to the recording material, and prevent forgery of the recorded matter transferred to the recording material.

Brief Description of the Drawings

[0032]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0033] Hereinafter, with reference to the accompanying drawings, a protective patch ribbon for a thermal transfer printer and a method for manufacturing the same according to an embodiment of the present invention will be described in detail.

[0034] The drawings introduced below are provided as examples so that those skilled in the art can fully understand the idea of the present invention. Therefore, the present invention is not limited to the drawings presented below, and can be embodied in other forms. The drawings presented below may be exaggerated for illustration to clarify the idea of the present invention.

[0035] In the technical and scientific terms used herein, unless otherwise defined, they shall have the meanings commonly understood by those with ordinary knowledge in the technical field to which the present invention pertains. In the following description and the accompanying drawings, descriptions of well-known functions and configurations that would obscure the gist of the present invention are omitted.

[0036] Also, in this specification and the appended claims, the singular forms used may, unless otherwise indicated in the context, include plural forms.

[0037] In this specification and the appended claims, terms such as "comprising" or "having" mean the presence of the features or components described in the specification, and do not preclude in advance the possibility of adding one or more other features or components, unless otherwise specifically limited.

[0038] The protective patch ribbon for a thermal transfer printer provided by the present invention includes a release body including a transport film that is repeatedly rewound and wound, and an adhering layer located on at least one surface of the transport film, and a structure in which a patch film base material and a primer layer are sequentially laminated on the adhering layer. The structure includes a patch shape imparting body including a punching area, and an image receiving layer located on the patch shape imparting body, and the shape of the patch transferred to the recording material is defined by the punching area.

[0039] Printing of target information or an image (hereinafter, a recording) on a recording material using a conventional retransfer printing method is performed by a process of printing the recording on an intermediate transfer medium and then retransferring the coating layer of the intermediate transfer medium on which the recording is printed to the recording material. However, since such a method is inferior in the physical durability of the recording, in order to prevent physical damage to the recording retransferred to the recording material, a step of attaching a protective patch to the recording transferred to the recording material using a laminator is always required.

[0040] At this time, the protective patch is usually also named as a clear patch, a clear patch ribbon, a clear patch laminate, a clear laminate patch or ribbon, or an overlaminate clear.

[0041] Such a protective patch is provided in the form of a transparent patch that is transferred to a recording medium on which a recording is transferred from a transport film by heat and a roll-shaped protective patch ribbon in which the transport film is laminated. However, the thickness of the protective patch is about 2 to 3 times thicker than the thickness of the intermediate transfer medium.

[0042] Due to the difference in thickness between the protective patch and the intermediate transfer medium, when laminating a relatively thick protective patch with a retransfer printer that supplies less heat than the laminator used to attach the protective patch, the transfer and adhesive strength to the recording medium may decrease. Therefore, it is necessary to provide a separate printer or laminator for attaching the protective patch, which results in a problem of reduced process efficiency.

[0043] On the other hand, the protective patch ribbon for a thermal transfer printer according to an embodiment of the present invention includes a release body including a transport film in which rewinding and winding are repeated and an adhering layer located on at least one surface of the transport film, and a structure in which a patch film base material and a primer layer are sequentially laminated on the adhering layer. The structure includes a patch shape giver including a punching area and an image receiving layer located on the patch shape giver. By defining the shape of the patch transferred to the recording medium by the punching area, even when using a conventional retransfer printer that supplies less heat than the laminator used to attach the protective patch, the patch shape giver is peeled off from the release body and thermally adhered to the recording medium, so that a recording can be printed on the recording medium with excellent quality, and physical damage to the recording transferred to the recording medium can be effectively prevented.

[0044] As the recording medium onto which the recording is transferred, any material known in the art can be used without limitation. As an example, the recording medium includes, but is not limited to, polyvinyl chloride, polyester, polycarbonate, or ABS (Acrylonitrile butadiene styrene) resin.

[0045] Hereinafter, a more detailed description will be given with reference to the accompanying drawings.

[0046] FIG. 1 is a conceptual diagram of a protective patch ribbon 4 according to an embodiment of the present invention.

[0047] As shown in FIG. 1, a protective patch ribbon 4 according to an embodiment of the present invention includes a release body 100 including an adhesion layer 11 located on one surface of a transport film 10, and a patch film base material 20 and a primer layer 21 sequentially laminated on the adhesion layer 11, a patch-shaped body 200 including punching regions 30 and 31, and an image receiving layer 23 located on the patch-shaped body 200.

[0048] Further, the protective patch ribbon 4 includes a plurality of units in which the above-described release body 100, patch-shaped body 200, and image receiving layer 23 are used as a unit and are continuously located in a tape shape.

[0049] Here, the punching regions 30 and 31 define the patch shape 2 transferred to the recording medium 1.

[0050] Specifically, the release body 100 is peeled off, and the image receiving layer 23 on which the recording is printed and the patch-shaped body 200 are thermally adhered to the surface of the recording medium 1 in sequence, so that the recording can be transferred to the recording medium 1.

[0051] As a specific example, the transport film 10 included in the release body 100 may be one in which rewinding and winding are repeated.

[0052] Specifically, unlike the conventional case where a protective patch is attached by laminating in one direction, the protective patch ribbon 4 according to an embodiment of the present invention includes an image receiving layer 23 and is capable of image reception. Here, the image can be completed by returning to the printing start point each time each color consisting of cyan, magenta, yellow, black (key), and silver is printed. That is, for image reception on the image receiving layer 23 described later, the transport film 10 is repeatedly rewound and wound by a driving roll.

[0053] In one embodiment, the transport film 10 includes sensing marks (not shown) for confirming the printing position on at least one surface. Here, the sensing marks are composed of two marks spaced at regular intervals on at least one surface of a single unit, whereby the range of the printing area can be specified, and the sensing marks can be embodied using black ink commonly used in the art.

[0054] However, when the sensing marks included in the transport film 10 where rewinding and winding are repeated come into contact with the image receiving layer 23 during the winding process, the physical properties of the black ink are selected according to the physical properties of the image receiving layer 23.

[0055] As an example, when the surface of the image receiving layer 23 that comes into contact with the sensing mark is oily when the transport film 10 is wound for printing, the sensing mark contains water-based black ink, and when the surface of the image receiving layer 23 is water-based, the sensing mark contains oil-based black ink.

[0056] As an example, the transport film 10 can be used without limitation as long as it is a material known in the art. Examples include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), etc., but are not limited thereto.

[0057] As a specific example, the thickness of the transport film 10 is 1 to 50 μm, specifically 10 to 30 μm, but the present invention is not limited by the thickness of the transport film 10.

[0058] As an example, the adhering layer 11 included in the release body 100 and located on one surface of the transport film 10 adheres the patch film base material 20 included in the patch-shaped body 200 described later and the above-described transport film 10. However, during thermal transfer, the patch-shaped body 200 including the patch film base material 20 can be peeled from the release body 100, and it plays a role of adjusting the peel strength between the patch film base material 20 and the transport film 10.

[0059] As a specific example, the adhering layer 11 contains a thermosetting resin, a thermoplastic resin, or a photocurable resin. After the above-described resin is cured, it is advantageous that there is no stickiness or very little stickiness.

[0060] As described above, the transport film 10 on which the adhering layer 11 is located is repeatedly rewound and wound back by a driving roll for image reception on the image receiving layer 23. However, after the image receiving layer 23 and the patch-shaped body 200 are thermally adhered and the recorded matter is transferred to the recording material 1, if there is stickiness from the adhering layer 11 on one surface of the transport film 10, a load is applied to the driving roll that rewinds and winds the transport film 10. When printing each color, it cannot reach the printing start point accurately, and a blurry image with out-of-focus colors is output. If the stickiness is strong, the image receiving layer 23 and the patch-shaped body 200 may not be completely peeled from the release body 100.

[0061] As a specific example, the adhering layer 11 contains any one or more selected from the group consisting of polyester, polyacrylate, polyurethane, polyimide, polybutyral, polyacetal, and silicone resin.

[0062] As an embodiment, the thickness of the adhering layer 11 is 0.5 to 5 μm, specifically 1 to 4 μm, and more specifically 2 to 3 μm.

[0063] Further, in order to adjust the peel strength between the patch film base material 20 and the transport film 10 by the adhesion layer 11 located on one surface of the transport film 10, one surface of the transport film 10 may be subjected to corona treatment or plasma treatment.

[0064] In one embodiment, the patch shape imparting body 200 includes a punching region 30, 31 in a structure in which the patch film base material 20 and the primer layer 21 are sequentially laminated on the adhesion layer 11 included in the release body 100.

[0065] Here, the transport film 10 and the patch film base material 20 are adhered by the adhesion layer 11, and the peel strength between the transport film 10 and the patch film base material 20 is adjusted according to the process conditions of the adhesion. The process conditions of the adhesion will be described in more detail in the method for manufacturing the protective patch ribbon for a thermal transfer printer described later.

[0066] Also, in order to adjust the peel strength between the patch film base material 20 and the transport film 10, similar to the corona treatment or plasma treatment on one surface of the transport film 10, the surface of the patch film base material 20 to be adhered is also subjected to corona treatment or plasma treatment.

[0067] In one embodiment, the peel strength between the transport film 10 and the patch film base material 20 is 4 to 9 gf / 25 mm, specifically 5 to 8 gf / 25 mm, more specifically 6 to 7 gf / 25 mm based on the 90-degree peel strength.

[0068] By satisfying the above-described 90-degree peel strength between the transport film 10 and the patch film base material 20, the target recording material can be transferred to the recording material 1 with excellent quality.

[0069] Specifically, when the peel strength between the transport film 10 and the patch film base material 20 does not satisfy the above range based on the 90-degree peel strength, during the formation process of the punching regions 30 and 31 and the image receiving layer 23 included in the patch shape imparting body 200 described later, the patch film base material 20 may detach, or during the process of printing the target recording on the recording material 1, the image receiving layer 23 and the patch shape imparting body 200 may not completely peel from the release body 100. Therefore, it is preferable that the peel strength between the transport film 10 and the patch film base material 20 satisfies the above-described range based on the 90-degree peel strength.

[0070] When printing the target recording on the recording material 1, the patch film base material 20 included in the patch shape imparting body 200 is peeled from the release body 100 and is located on the outermost surface of the patch shape region 2 included in the recording material 1, and can effectively prevent physical damage to the recording.

[0071] In one embodiment, the patch film base material 20 is any one or more selected from the group consisting of stretched polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polycarbonate (PC).

[0072] As a specific example, the thickness of the patch film base material 20 is 5 to 40 μm, specifically 10 to 30 μm.

[0073] By the thickness of the patch film base material 20 satisfying the above range, the recording printed on the recording material 1 can be protected from the external environment, and the durability of the recording can be significantly improved.

[0074] As an example, the patch film base material 20 includes an embossed hologram. By including the embossed hologram in the patch film base material 20, the security of the recording transferred to the recording material 1 can be improved.

[0075] In one embodiment, the patch shape imparting body 200 includes a structure in which a primer layer 21 is located on the opposing surface facing the laminating surface of the patch film base material 20 laminated by the laminating layer 11, and includes punching regions 30 and 31.

[0076] Here, the punching regions 30 and 31 are regions corresponding to the regions 3 other than the patch shape region 2 included in the recording material 1, and the patch film base material 20 and the primer layer 21 are sequentially laminated so as to correspond to the entire region 3 other than the patch shape region 2 included in the recording material 1. It means a region where a part of the structure is removed.

[0077] As a specific example, the primer layer 21 included in the patch shape imparting body 200 and located on the patch film base material 20 plays a role of improving the adhesive force between the patch film base material 20 and the image receiving layer 23 described later, which sandwich the primer layer 21.

[0078] Here, the peel strength between the patch film base material 20 and the image receiving layer 23 adhered by the primer layer 21 is even greater than the peel strength between the above-described transport film 10 and the patch film base material 20.

[0079] The primer layer 21 can be used without limitation as long as it is a substance known in the art that is located on the patch film base material 20 and can improve the adhesive force. As a non-limiting example, the primer layer 21 includes acrylic resin, urethane resin, amide resin, epoxy resin, ionomer resin, rubber-based resin, and the like.

[0080] Here, the thickness of the primer layer 21 is 0.1 to 5 μm, specifically 1 to 3 μm.

[0081] As one embodiment, the image receiving layer 23 having an image receiving function is located on the patch shape imparting body 200 and is adhered to the patch shape region 2 included in the recording material 1. Therefore, the image receiving layer 23 needs to have an image receiving function and an adhesive function with the recording material 1.

[0082] Specifically, the image receiving layer 23 can be used without limitation as long as it can accommodate sublimable dyes or is a printable substance from the melted color layer of a pigment transfer type thermal transfer ribbon. From the aspect of improving the adhesion to the recording material 1, it contains one or more selected from the group consisting of vinyl chloride homopolymer, vinyl chloride-vinyl acetate copolymer, and polyurethane resin.

[0083] Further, the image receiving layer 23 may further contain a first additive known in the art, such as a silicone-based plasticizer, a release agent, an antifoaming agent, a leveling agent, a polymer wax, an antistatic agent, etc., as necessary.

[0084] As an example, the thickness of the image receiving layer 23 is 0.5 to 5 μm, specifically 1 to 4 μm, and more specifically 1 to 3 μm.

[0085] In order to simultaneously perform the image receiving function and the adhesion function to the recording material 1, it is preferable that the thickness of the image receiving layer 23 satisfies the above range.

[0086] Further, the protective patch ribbon 4 integrally extends from the image receiving layer 23 and further includes a buffer portion (not shown) that fills the punching regions 30 and 31 included in the patch shape imparting body 200 described above. Here, the buffer portion integrally extends from the image receiving layer 23 and is made of the same material as the material included in the image receiving layer 23.

[0087] As an example, the protective patch ribbon 4 further includes a release layer located between the image receiving layer 23 and the primer layer 21.

[0088] FIG. 2 and FIG. 3 are drawings showing conceptual diagrams of the protective patch ribbon 4 including the release layer 22 according to another embodiment of the present invention, respectively.

[0089] First, referring to FIG. 2, the protective patch ribbon 4 includes a release body 100 including an adhesion layer 11 located on one surface of the transport film 10, a patch-shaped body 200 including a structure in which a patch film base material 20 and a primer layer 21 are sequentially laminated on the adhesion layer 11 and including a punching area (not shown), a release layer 22 located on the patch-shaped body 200, and an image receiving layer 23 located on the release layer 22.

[0090] Here, the protective patch ribbon 4 further includes a first buffer portion 300 that extends integrally from the release layer 22 and fills the punching area.

[0091] Here, the release body 100 including the adhesion layer 11 located on one surface of the transport film 10, the patch-shaped body 200 including a structure in which the patch film base material 20 and the primer layer 21 are sequentially laminated on the adhesion layer 11 and including a punching area (not shown), and the image receiving layer 23 are the same as or similar to those described above, so detailed description is omitted.

[0092] The protective patch ribbon 4 further includes a release layer located on the patch-shaped body 200 and a first buffer portion 300 that extends integrally from the release layer 22 and fills the punching area, whereby the printing quality of the recorded matter printed on the area 3 other than the patch-shaped area 2 included in the recording material 1 can be improved.

[0093] As a specific example, the first buffer portion 300 extends integrally from the release layer 22 and is made of the same material as the material included in the release layer 22.

[0094] Since the first buffer portion 300 extends integrally from the release layer 22 and is made of the same material as the material included in the release layer 22, the printing quality of the recorded matter transferred to the edge of the patch-shaped area 2 included in the recording material 1 as well as to the edge area of the recording material 1 can be improved.

[0095] In one embodiment, the peel strength between the release layer 22 and the layer in contact with the release layer 22 (the image receiving layer and the primer layer 21) and the peel strength between the primer layer 21 and the patch film substrate 20 are even greater than the peel strength between the above-described transport film and the patch film substrate.

[0096] By satisfying the above conditions, the patch film substrate 20 is peeled from the release body 100 including the adhering layer 11 located on one surface of the transport film 10, and the image receiving layer 23, the release layer 22, the primer layer 21, and the patch film substrate 20 on which the recording has been transferred are sequentially retransferred so as to correspond to the patch-shaped region 2 included in the recording material 1.

[0097] At this time, in the region 3 other than the patch-shaped region 2 included in the recording material 1, the first buffer portion 300 extending integrally from the image receiving layer 23 and the release layer 22 on which the recording has been transferred is sequentially retransferred.

[0098] As a specific example, the release layer 22 located on the patch-shaped body 200, that is, located between the image receiving layer 23 and the primer layer 21, can be used without limitation as long as it is a polymer resin capable of adjusting the glass transition temperature and molecular weight using a cold blending process. As an advantageous example, the release layer 22 includes any one or more selected from the group consisting of polyester, polyacrylate, polyamide, cellulose ester, polyurethane, polyvinyl acetate copolymer, polybutyral, polyacetal, and silicone resin.

[0099] As an example, in order to improve transparency and scratch resistance, the release layer 22 can include polyester and an acrylic resin.

[0100] Further, the release layer 22 may further include a second additive such as an antifoaming agent, a leveling agent, a polymer wax, an ultraviolet blocker, etc., which are known in the art, as needed.

[0101] In one embodiment, the thicknesses of the adhering layer 11 and the release layer 22 are each independently 0.5 to 5 μm.

[0102] Here, the thickness of the adhering layer 11 may be the same as described above, and the thickness of the release layer 22 is 0.5 to 5 μm, specifically 1 to 4 μm, and more specifically 2 to 3 μm. By the thickness of the release layer 22 satisfying the above range, it is possible to improve the printing quality of the recorded matter transferred not only to the edge of the patch-shaped region 2 contained in the recording material 1 but also to the edge region of the recording material 1.

[0103] Furthermore, referring to FIG. 3, the protective patch ribbon 4 includes a release body 100 including an adhering layer 11 located on one surface of the transport film 10, and a patch-shaped body 210 including a punching region (not shown) having a structure in which a patch film base material 20, a primer layer 21, and a release layer 22 are sequentially laminated on the adhering layer 11, and an image receiving layer 23 located on the patch-shaped body 210.

[0104] Here, the protective patch ribbon 4 further includes a second buffer portion 310 that integrally extends from the image receiving layer 23 and fills the punching region.

[0105] Here, since the release body 100 including the adhering layer 11 located on one surface of the transport film 10 and the image receiving layer 23 are the same as or similar to those described above, detailed description thereof is omitted.

[0106] The protective patch ribbon 4 includes a patch-shaped body 210 including a punching region (not shown) having a structure in which a patch film base material 20, a primer layer 21, and a release layer 22 are sequentially laminated on the adhering layer 11, and an image receiving layer 23 located on the patch-shaped body 210, and further includes a second buffer portion 310 that integrally extends from the image receiving layer 23 and fills the punching region, whereby the printing quality of the recorded matter printed on the region 3 other than the patch-shaped region 2 contained in the recording material 1 can be further improved.

[0107] Here, the punching area means an area where a part of the structure in which the patch film base material 20, the primer layer 21, and the release layer 22 are sequentially laminated is removed so as to correspond to the edge surface of the patch-shaped area 2 included in the recording material 1. The second buffer portion 310 that extends integrally from the image receiving layer 23 and fills the punching area is made of the same material as the material included in the image receiving layer 23. Since the material included in the image receiving layer 23 is the same as or similar to the above-described one, detailed description is omitted.

[0108] Specifically, the structure included in the patch-shaped body 210 includes the release layer 22, and the end portion on the release body side of the punching area included in the structure is included inside the transport film 10.

[0109] As a specific example, the end portion on the release body side of the punching area is included in the range of 0.2 to 0.8T, specifically 0.3 to 0.6T, and more specifically about 0.4 to 0.5T based on the total thickness T of the transport film 10.

[0110] As described above, since the end portion on the release body side of the punching area satisfies the above range and is included inside the transport film 10, and the punching area is filled by the second buffer portion 310 made of the same material as the material included in the image receiving layer 23, and the second buffer portion 310 is integrally extended from the image receiving layer 23, there is an advantage that the structural stability of the protective patch ribbon 4 is improved and the recorded matter can be transferred without damage when printing the recorded matter on the recording material 1.

[0111] Further, since the image receiving layer 23 is located on the patch-shaped body 210 in which the structure in which the patch film base material 20, the primer layer 21, and the release layer 22 are sequentially laminated includes the punching area, and the punching area is filled with the second buffer portion 310 integrally extended from the image receiving layer 23, the printing quality of the recorded matter printed on the area 3 other than the patch-shaped area 2 included in the recording material 1 is further improved.

[0112] In one embodiment, the punching area is tapered (in a tapered shape) with respect to the thickness direction of the protective patch ribbon.

[0113] Specifically, the shape of the punching area is a tapered shape in which the width of the end on the peeling body side of the punching area is narrower than the width of the end located on the other side. Here, the end on the peeling body side of the punching area exists in a closed form at the point of contact with the center line of the punching area, and the center line is positioned to coincide with the edge line of the patch-shaped area 2 included in the recording material 1.

[0114] More specifically, the shape of the punching area includes the outer contour line K of the punching area, which is symmetric about the center line L located at the center of the punching area and in contact with both ends of the punching area.

[0115] As a specific example, the angles of L and K at the point where the end on the peeling body side of the punching area contacts the center line L are 5 to 45 degrees, specifically 10 to 40 degrees, and more specifically 20 to 30 degrees.

[0116] When the angles of the above-mentioned center line L and the outer contour line K of the punching area are less than 5 degrees, even if the second buffer portion 310 that extends integrally from the image receiving layer 23 and fills the punching area is included, there is a limit to improving the structural stability of the protective patch ribbon 4. When the angles of L and K exceed 45 degrees, the structural stability of the protective patch ribbon 4 can be improved, but there is a limit to improving the printing quality of the recorded matter printed on the area 3 other than the patch-shaped area 2 included in the recording material 1. Therefore, it is advantageous for the angles of the center line L and the outer contour line K of the punching area to satisfy the above-mentioned range.

[0117] Also, when the angles of the center line L and the outer contour line K of the punching area are in the range of 20 to 30 degrees, there is an advantage that the structural stability of the protective patch ribbon 4 can be improved and the recorded matter printed with high quality on the area 3 other than the patch-shaped area 2 included in the recording material 1 can be protected from physical damage.

[0118] The present invention provides a manufacturing method capable of manufacturing the above-mentioned protective patch ribbon for a thermal transfer printer.

[0119] The manufacturing method of the protective patch ribbon for a thermal transfer printer according to the present invention includes: a) a preparation step of a release body in which an adhesion layer coating liquid is applied to at least one surface of a transport film in which rewinding and winding are repeated to form an adhesion layer; b) a patch film base material is laminated on the adhesion layer, and after being papered by a paper laminating machine, a primer layer is formed on the surface opposite to the papered surface of the patch film base material, and a step of forming a structure located on the release body; c) a step of forming a patch shape imparting body in which a punching area is formed in the structure through a punching process so that the shape of the patch transferred to the recording material is defined; d) a step of forming an image receiving layer on the patch shape imparting body.

[0120] Hereinafter, the manufacturing method of the protective patch ribbon for a thermal transfer printer will be described in detail for each step.

[0121] First, an adhesion layer coating liquid is applied to at least one surface of a transport film in which rewinding and winding are repeated to form an adhesion layer, and a release body is prepared.

[0122] In one specific example, the adhesion layer coating liquid is a mixture of a mixed resin containing an acrylic resin and a polyester, or a reaction resin containing a modified acrylic resin and a curing agent, mixed with a solvent.

[0123] As a specific example, the weight ratio of the acrylic resin: polyester contained in the mixed resin is 1:0.01 to 0.2, specifically 1:0.05 to 0.1.

[0124] The weight ratio of the modified acrylic resin: curing agent contained in the reaction resin is 1:0.1 to 0.5, specifically 0.1 to 0.3. Here, the curing agent includes an isocyanate-based curing agent.

[0125] By including a mixed resin or a reactive resin that satisfies the aforementioned weight ratio in the adhesion layer coating liquid, when printing using a conventional retransfer printer, the patch film substrate contained in the patch-shaped body formed in the patch-shaped body forming step described later can be smoothly peeled from the release body, and the target recording can be transferred to the recording material with excellent quality. That is, the peeling strength between the patch film substrate and the transport film can be adjusted, and the printing quality can be improved.

[0126] As an example, the solvent is contained in the adhesion layer coating liquid at 60 to 90% by weight, specifically 70 to 80% by weight, based on the total weight of the adhesion layer coating liquid.

[0127] Here, the solvent is 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.

[0128] The aforementioned adhesion layer coating liquid can be applied to at least one surface of the transport film to form an adhesion layer, and the coating method can be used without limitation as long as it is a method known in the art. As a non-limiting example, the adhesion layer coating liquid can be applied to at least one surface of the transport film using methods such as spray coating, gravure coating, microgravure coating, bar coating, slot die coating, roll coating, etc., but the present invention is not limited by the coating method.

[0129] After applying the adhesion layer coating liquid, a drying process can be immediately performed, and the drying process can be performed for 1 to 3 minutes under temperature conditions of 80 to 120°C, specifically 100 to 120°C. After the drying process is completed, for curing, a post-curing process is performed for 12 to 30 hours under temperature conditions of 60 to 80°C depending on the type of the adhesion layer coating liquid.

[0130] By performing a post-curing process after the drying process, the patch film substrate contained in the patch-shaped body formed after the paper laminating process described later can be smoothly peeled from the release body.

[0131] Next, after laminating the patch film base material on the adhering layer, paper is joined using a paper joining machine, and a primer layer is formed on the opposite surface of the joined surface of the patch film base material, thereby forming a structure located on the release body.

[0132] Here, the paper joining using the paper joining machine is performed under temperature conditions of 135 to 145°C and a transfer speed condition of 1 to 15 m / min, specifically 8 to 12 m / min, or under temperature conditions of 145.1 to 155°C and a transfer speed condition of 1 to 9 m / min, specifically 3 to 7 m / min.

[0133] Under the above conditions, the peel strength between the patch film base material joined with the adhering layer in between and the transport film is adjusted using the paper joining machine, and during printing using a retransfer printer, the patch film base material included in the patch shape imparting body formed in the subsequent patch shape imparting body forming stage can be smoothly peeled from the release body.

[0134] When the paper joining conditions by the paper joining machine are not satisfied, during printing using a retransfer printer, the patch film base material may not be completely peeled from the release body, or only the primer layer included in the patch shape imparting body described later, or the image receiving layer located on the patch shape imparting body may be partially peeled, and the print quality may deteriorate. Also, since the recorded matter transferred to the recording material cannot be protected from the external environment, the paper joining conditions by the paper joining machine preferably satisfy the above conditions.

[0135] After joining the patch film base material and the transport film through the paper joining machine, a primer layer coating liquid is applied to the opposite surface of the joined surface of the patch film base material, and the structure located on the above release body can be formed. That is, the structure is a laminated structure in which a primer layer is located on the opposite surface of the joined surface of the patch film base material.

[0136] Here, the primer layer can be formed by applying and drying a primer layer coating solution, and the application and drying methods are the same as or similar to those of the application and drying methods of the above-described adhesion layer coating solution.

[0137] As an embodiment, the primer layer coating solution contains a modified acrylic resin, a curing agent, and a solvent, and the curing agent and solvent contained in the primer layer coating solution are the same as or similar to those contained in the above-described adhesion layer.

[0138] As a specific example, the weight ratio of the modified acrylic resin to the curing agent contained in the primer layer coating solution is 1:0.01 to 0.095, specifically 0.05 to 0.09.

[0139] When the weight ratio of the modified acrylic resin:curing agent contained in the primer layer coating solution satisfies the above 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 transport film laminated with the adhesion layer in between, and when printing using a retransfer printer, the patch film substrate contained in the patch shape imparting body formed in the formation stage of the patch shape imparting body described later is smoothly separated from the release body, and the printing quality can be improved.

[0140] Next, a punching process is performed on the structure to form a punching area so as to define the shape of the patch to be transferred to the recording material, and a patch shape imparting body is formed.

[0141] Here, the punching area means an area where a part of the structure in which the film substrate and the primer layer are sequentially laminated is removed so as to correspond to the entire area other than the target patch shape area through the punching process.

[0142] The punching process is not limited as long as it is a method known in the art. As an example, the punching process can be performed using a rotary die cutting machine.

[0143] Next, an image receiving layer is formed on the patch shape imparting body in which the punching area is formed on the structure.

[0144] The image receiving layer can be formed by applying and drying an image receiving layer coating liquid, and the applying and drying method is the same as or similar to the applying and drying method of the above-described adhering layer coating liquid.

[0145] As a specific example, the image receiving layer coating liquid contains at least one selected from the group consisting of a vinyl chloride homopolymer, a vinyl chloride-vinyl acetate copolymer, and a polyurethane resin in a solvent.

[0146] As a specific example, the vinyl chloride-vinyl acetate copolymer is contained in the image receiving layer coating liquid at 15 to 40% by weight, specifically 20 to 30% by weight, based on the total weight of the image receiving layer coating liquid. Here, the solvent is the same as or similar to the above-mentioned one.

[0147] As an advantageous example, before forming the image receiving layer, that is, after forming the patch-shaped body, a step of applying a release layer coating liquid on the patch-shaped body to form a release layer can be further included.

[0148] By applying a release layer coating liquid on the patch-shaped body including a punching region in the above-described structure to form a release layer, the release layer coating liquid is also applied to the punching region and the punching region is filled, so there is an advantage that the printing quality of the recording on the region other than the patch-shaped region included in the recording material can be improved.

[0149] As a specific example, the release layer coating liquid can contain an acrylic resin, a polyester, and a solvent.

[0150] As a specific example, the weight ratio of the acrylic resin to the polyester contained in the release layer coating liquid is 1:0.1 to 0.3, specifically 1:0.1 to 0.2.

[0151] Here, the solvent is the same as or similar to the above-mentioned one, and is composed of 60 to 90% by weight, specifically 70 to 80% by weight, based on the total weight of the release layer coating liquid.

[0152] As a more advantageous example, after applying the above-described release layer coating liquid on the primer layer to form a structure including a release layer on the primer layer, a punching process is performed so that the shape of the patch to be transferred to the recording material is defined, and a punching region is formed in the structure to form a patch shape imparting body.

[0153] Here, in the punching region, the end portion on the release body side of the punching region is included inside the transport film contained in the release body.

[0154] Specifically, in the punching region formed through the punching process, the width of the end portion on the release body side of the punching region is in a tapered shape that is thinner than the width of the end portion located on the other side, and the end portion on the release body side of the punching region exists in a closed form at the point where it contacts the center line of the punching region. Here, the punching process is performed so that the end portion on the release body side of the punching region existing in the closed form is included by 0.2 to 0.8T, specifically 0.3 to 0.6T, and more specifically 0.4 to 0.5T based on the total thickness T of the transport film.

[0155] Since the punching region formed by such a punching process is the same as or similar to the punching region shown in FIG. 3 described above, a detailed description thereof will be omitted.

[0156] As described above, by applying the above-described image receiving layer coating liquid on the patch shape imparting body including the tapered punching region to form an image receiving layer, the image receiving layer coating liquid is also applied and filled in the tapered punching region, so that the printing quality of the recorded matter printed on the region other than the patch shape region contained in the recording material can be further improved.

[0157] Hereinafter, the protective patch ribbon for a thermal transfer printer and its manufacturing method according to the present invention will be described in detail through examples. However, the following examples are for reference to explain the present invention in detail, and the present invention is not limited thereto and can be embodied in various forms.

[0158] Furthermore, unless otherwise defined, all technical and scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein are for the purpose of effectively describing specific embodiments and are not intended to limit the present invention. Also, the unit of additives not specifically described in the specification is % by weight.

[0159] (Production Example 1) Production of the First Adhesion Layer Coating Liquid 2% by weight of amorphous copolyester (VYLON 600, Toyobo), 21% by weight of an acrylic resin (BR-83, Mitsubishi Chemical), 38.5% by weight of methyl ethyl ketone, and 38.5% by weight of toluene were mixed to prepare the first adhesion layer coating liquid.

[0160] (Production Example 2) Production of the Second Adhesion Layer Coating Liquid 5% by weight of amorphous copolyester (VYLON 600, Toyobo), 18% by weight of an acrylic resin (BR-83, Mitsubishi Chemical), 38.5% by weight of methyl ethyl ketone, and 38.5% by weight of toluene were mixed to prepare the second adhesion layer coating liquid.

[0161] (Production Example 3) Production of the Third Adhesion Layer Coating Liquid 19.3% by weight of a modified acrylic resin (hydroxyl value 27 mg / KOH), 2.5% by weight of a polyfunctional isocyanate (TKA-100, Asahi Kasei), 39.1% by weight of toluene, 23.1% by weight of methyl ethyl ketone, and 16% by weight of ethyl acetate were mixed to produce the third adhesion layer coating liquid.

[0162] (Production Example 4) Production of the Fourth Adhesion Layer Coating Liquid 21.5% by weight of a modified acrylic resin (hydroxyl value 27 mg / KOH), 1% by weight of a polyfunctional isocyanate (TKA-100, Asahi Kasei), 38.8% by weight of toluene, 20.7% by weight of methyl ethyl ketone, and 18% by weight of ethyl acetate were mixed to produce the fourth adhesion layer coating liquid.

[0163] (Production Example 5) Production of the Primer Layer Coating Liquid 20.2 wt% of a modified acrylic resin (hydroxyl value 27 mg / KOH, Tg 60°C), 1.9 wt% of a polyfunctional isocyanate (TKA-100, Asahi Kasei), 39 wt% of toluene, 22 wt% of methyl ethyl ketone, and 16.9 wt% of ethyl acetate were mixed to produce a primer layer coating solution.

[0164] (Production Example 6) Production of the first release layer coating solution 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 were mixed to produce the first release layer coating solution.

[0165] (Production Example 7) Production of the second release layer coating solution 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 were mixed to prepare the second release layer coating solution.

[0166] (Production Example 8) Production of the image receiving layer coating solution 25 wt% of a vinyl chloride-vinyl acetate copolymer resin SOLBIN CNL (vinyl chloride 90 wt%, vinyl acetate 10 wt%, Nisshin Chemical Industry Co., Ltd.), 0.1 wt% of a silicone additive (KF-410, Shin-Etsu Chemical Co., Ltd.), and 74.8 wt% of methyl ethyl ketone were mixed to produce the image receiving layer coating solution.

[0167] (Example 1) As the base material of the transport film, a polyethylene terephthalate film with a thickness of 19 μm was used. On one side of this base material, the first adhesion layer coating solution was coated by the microgravure method to a thickness of 2 μm to form an adhesion layer, and a release body was prepared.

[0168] As the base material of the patch film, one side of a polyethylene terephthalate film with a thickness of 16 μm that was corona-treated on both sides was laminated with the adhesion layer surface of the aforementioned transport film with a thickness of 19 μm, and then they were pasted together by a heat pasting machine under the conditions of a temperature of 150°C and a moving speed of 5 m / min.

[0169] A primer layer coating liquid was applied to the opposite surface of the bonded surface of the bonded patch film base material by the microgravure method to form a primer layer with a thickness of 1 μm, and a structure was manufactured.

[0170] A part of the structure manufactured by the punching process using a rotary die cutting machine was removed, and a patch shape imparting body was formed such that a patch shape smaller than the CR80 (86×54 mm) standard was defined by the punched area formed by removing the entire area other than the target patch shape.

[0171] Thereafter, an image receiving layer coating liquid was applied to the formed patch shape imparting body by the microgravure method to form an image receiving layer with a thickness of 2 μm, and a protective patch ribbon for a thermal transfer printer was manufactured.

[0172] (Example 2) The same procedure as in Example 1 was carried out, except that a first release layer coating liquid and an image receiving layer coating liquid were sequentially applied to the formed patch shape imparting body by the microgravure method to form a release layer and an image receiving layer with thicknesses of 1.1 μm and 2 μm, respectively.

[0173] (Example 3) The same procedure as in Example 1 was carried out, except that after the formation of the primer layer, a first release layer coating liquid was applied on the primer layer to form a release layer with a thickness of 2.5 μm, and a structure was manufactured.

[0174] Thereafter, by the punching process using a rotary die cutting machine, a part of the structure manufactured such that a patch shape smaller than the CR80 (86×4 mm) standard was defined was removed, and a patch shape imparting body including a tapered punched area whose lower area gradually narrowed was formed. Here, the end portion on the release body side of the punched area was positioned so as to be located on the center line of the punched area in a closed form, so that the edge of the patch shape coincided with the center line of the punched area, and the end portion on the release body side of the punched area was included by 40% of the total thickness of the transport film.

[0175] In addition, the punching area is positioned such that the outer contour line is symmetric about the center line. At this time, it was confirmed that the angle between the center line and the outer contour line at the closing point of the punching area is 25 degrees.

[0176] Next, an image receiving layer coating liquid was applied onto the formed patch-shaped body by the micro gravure method to form an image receiving layer with a thickness of 2 μm, and a protective patch ribbon for a thermal transfer printer was manufactured.

[0177] (Example 4) After forming a bonding layer with a thickness of 3 μm using the third bonding layer coating liquid, the patch film base material and the transport film were paper-bonded with the bonding layer interposed therebetween under the conditions of a temperature of 140 °C and a moving speed of 10 m / min using a thermal paper-bonding machine, except that it was carried out in the same manner as in Example 3.

[0178] (Example 5) After forming a bonding layer with a thickness of 3 μm using the third bonding layer coating liquid, the patch film base material and the transport film were paper-bonded with the bonding layer interposed therebetween under the conditions of a temperature of 140 °C and a moving speed of 10 m / min using a thermal paper-bonding machine, except that it was carried out in the same manner as in Example 2.

[0179] (Example 6) It was carried out in the same manner as in Example 3, except that the end portion on the release body side of the punching area was made to include 20% of the total thickness of the transport film.

[0180] (Example 7) It was carried out in the same manner as in Example 3, except that the punching area was formed such that the angle between the center line and the outer contour line at the closing point of the punching area is 60 degrees.

[0181] (Example 8) It was carried out in the same manner as in Example 3, except that an embossed hologram film with a thickness of 16 μm that was corona-treated on both sides was used as the base material of the patch film.

[0182] (Comparative Example 1) The lamination layer was formed in the same manner as in Example 3, except that the second lamination layer coating liquid was applied.

[0183] (Comparative Example 2) The lamination layer was formed in the same manner as in Example 4, except that the fourth lamination layer coating liquid was applied.

[0184] (Comparative Example 3) It was carried out in the same manner as in Example 4, except that the patch film base material and the transport film were laminated with the lamination layer in between under the conditions of a temperature of 150 °C and a moving speed of 10 m / min using a hot lamination paper machine.

[0185] (Comparative Example 4) The release layer was formed in the same manner as in Example 2, except that the second release layer coating liquid was applied.

[0186] (Comparative Example 5) It was carried out in the same manner as in Example 3, except that the punching process performed for forming the patch shape imparting body was carried out after forming the image receiving layer.

[0187] (Comparative Example 6) It was carried out in the same manner as in Example 3, except that the punching process was not carried out, that is, the punched area was not formed.

[0188] (Experimental Example) For each protective patch ribbon for a thermal transfer printer, the 90-degree peel strength between the patch film base material and the transport film laminated with the lamination layer in between was measured through a hot lamination paper machine, and the results are shown in Table 1.

[0189] Furthermore, for the purpose of confirming the printing quality using each protective patch ribbon for a thermal transfer printer, a printing process was carried out on a polyvinyl chloride material card (CR80 standard) as the recording material using a re-transfer printer (DC-7600, DASCOM). At this time, the printing was carried out under the conditions of a temperature of 202 °C and a speed of 20 mm / sec.

[0190] Here, the print quality was evaluated by checking the adhesiveness between the patch film base material and the recording material to be recorded and the transferability of the edges of the recording material to be recorded, and the evaluation criteria are described below.

[0191] (Adhesiveness evaluation between the patch film base material and the recording material to be recorded) The printing state of the recording material on which the printing process was performed was observed. After 1 hour, the patch film base material was forcibly peeled off from the recording material, and the degree of tearing was checked.

[0192] O: The patch film base material is partially torn. NG: The patch film base material is peeled off without being torn. X: Either it is not printed, or the patch film base material is not displaced onto the recording material, and only the image receiving layer, or only the release layer and the image receiving layer are transferred.

[0193] (Edge transferability) The printed state was observed for the edges of the recording material on which the printing process was performed, that is, the areas other than the patch shape.

[0194] GOOD: The punched area is not visible, and the edge is printable. PASS: The punched area is visible, but the edge is printable. NG: The punched area is visible, and the edge is incompletely printed.

[0195]

Table 1

[0196] Referring to the results in Table 1, it was confirmed that when printing using a conventional retransfer printer, the print quality is most excellent when using the protective patch ribbons of Example 3 and Example 4. On the other hand, even when including a punched area similar to that of Example 3, it was confirmed that the print quality varies depending on the shape of the punched area.

[0197] In contrast, in the case of Comparative Example 6 that does not include a perforated area, the patch film substrate was torn during the printing process, and it was observed that both the adhesiveness and the edge transferability between the patch film substrate and the recording material were the worst. When the 90-degree peel strength between the laminated patch film substrate and the transport film exceeded 9 gf / 25 mm, it was observed that the adhesion characteristics between the patch film substrate and the recording material were poor.

[0198] Furthermore, it was confirmed that the execution order of the punching process for forming the perforated area affects the edge transferability.

[0199] As described above, the present invention has been described through specific matters and limited examples, but this is provided to assist in a more general understanding of the present invention. The present invention is not limited to the above examples, and those having ordinary knowledge in the field to which the present invention pertains can make various modifications and deformations from these descriptions.

[0200] Therefore, the idea of the present invention should not be limited to the described examples, and it can be said that not only the scope of the claims described later, but also all those equivalent to or having equivalent deformations of this scope of claims belong to the scope of the idea of the present invention.

Claims

1. A release body including a transport film in which rewinding and winding are repeated, and an adhering layer located on at least one surface of the transport film, A structure in which a patch film base material and a primer layer are sequentially laminated on the adhering layer, the structure including a patch-shaped body including a punching region, An image receiving layer located on the patch-shaped body, A protective patch ribbon for a thermal transfer printer, characterized in that the shape of the patch transferred to the recording material is defined by the punching region.

2. The protective patch ribbon for a thermal transfer printer according to claim 1, characterized in that the transport film and the patch film base material are joined together by the adhering layer.

3. The protective patch ribbon for a thermal transfer printer according to claim 2, further including a release layer located between the image receiving layer and the primer layer.

4. The protective patch ribbon for a thermal transfer printer according to claim 3, further including a first buffer portion that integrally extends from the release layer and fills the punching region.

5. The protective patch ribbon for a thermal transfer printer according to claim 3, characterized in that the structure includes the release layer, and an end portion of the punching region on the release body side is included inside the transport film.

6. The protective patch ribbon for a thermal transfer printer according to claim 5, characterized in that the punching region tapers with respect to the thickness direction of the protective patch ribbon.

7. The protective patch ribbon for a thermal transfer printer according to claim 6, further including a second buffer portion that integrally extends from the image receiving layer and fills the punching region.

8. The protective patch ribbon for a thermal transfer printer according to claim 3, characterized in that the peeling strength between the release layer and the layer in contact with the release layer is further greater than the peeling strength between the primer layer and the patch film base material compared to the peeling strength between the transport film and the patch film base material.

9. The protective patch ribbon for a thermal transfer printer according to claim 8, characterized in that the peeling strength between the transport film and the patch film base material is 4 to 8 gf / 25 mm based on the 90-degree peeling strength.

10. The adhesion layer contains any one or more selected from the group consisting of polyester, polyacrylate, polyurethane, polyimide, polybutyral, polyacetal, and silicone resin, and is characterized in that it is the protective patch ribbon for a thermal transfer printer according to claim 1.

11. The release layer contains any one or more selected from the group consisting of polyester, polyacrylate, polyamide, cellulose ester, polyurethane, polyvinyl acetate copolymer, polybutyral, polyacetal, and silicone resin, and is characterized in that it is the protective patch ribbon for a thermal transfer printer according to claim 3.

12. The thicknesses of the adhesion layer and the release layer are independently 0.5 to 5 μm, and are characterized in that it is the protective patch ribbon for a thermal transfer printer according to claim 3.

13. The patch film base material is any one or more selected from the group consisting of oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polycarbonate (PC), and is characterized in that it is the protective patch ribbon for a thermal transfer printer according to claim 1.

14. The patch film base material contains an embossed hologram, and is characterized in that it is the protective patch ribbon for a thermal transfer printer according to claim 13.

15. a) A preparation step of a release body for forming an adhesion layer by applying an adhesion layer coating liquid on at least one surface of a transport film in which rewinding and winding are repeated; b) Laminating a patch film base material on the adhesion layer, paper-bonding with a thermal paper machine, then forming a primer layer on the opposite surface of the paper-bonded surface of the patch film base material, and a step of forming a structure located on the release body; c) A step of forming a patch shape imparting body that forms a punching area in the structure through a punching process so that the shape of the patch transferred to the recording material is defined; d) A method for manufacturing a protective patch ribbon for a thermal transfer printer, comprising a step of forming an image receiving layer on the patch shape imparting body.

16. After the step c), the method further includes a step of applying a release layer coating liquid on the patch shape imparting body to form a release layer, and is characterized in that it is the method for manufacturing a protective patch ribbon for a thermal transfer printer according to claim 15.

17. The method for manufacturing a protective patch ribbon for a thermal transfer printer according to claim 15, characterized in that in the step b), a release layer coating liquid is applied onto the primer layer to form a structure including a release layer on the primer layer.

18. The method for manufacturing a protective patch ribbon for a thermal transfer printer according to claim 17, characterized in that in the punching area formed in the step c), the end portion on the release body side of the punching area is included inside the transport film.

Images