Wood credit card and method for manufacturing same

Abstract

A wood credit card, according to an embodiment of the present invention, comprises a wood sheet made of a wood material; a metal sheet attached to one side of the wood sheet and made of a metal material; and a synthetic resin sheet attached to one side of the metal sheet. The synthetic resin sheet may be an epoxy sheet having at least one print layer printed thereon.

Description

Wooden credit card and method of manufacturing the same

[0001] The present invention relates to a wooden credit card and a method for manufacturing the same, and more particularly, to a wooden credit card and a method for manufacturing the same, which can realize environmental friendliness while allowing the user to feel the texture of wood material as it is due to a wooden sheet, and which can provide durability due to a synthetic resin sheet printed with a metal sheet and a multi-layered printed layer.

[0002] In general, credit cards can be used in place of cash, but recently, smart cards with embedded IC chips that can store large amounts of information have been developed, and are actively used not only for payment but also for various membership cards.

[0003] In this smart card market, specialized cards using various materials are being developed. Specifically, differentiated metal credit cards are being developed for VIP customers, while wood-based credit cards are also being developed to target eco-friendly consumers.

[0004] Some card companies are actually releasing cards made from eco-friendly certified wood, minimizing the environmental impact when the card is discarded after its expiration date.

[0005] However, in the case of conventional wooden credit cards, a method was used in which a synthetic resin sheet was bonded to a wooden sheet with an adhesive. In this case, although the texture of the wood could be felt to some extent, the durability was weak and it could easily break or warp, which made it difficult to use the credit card.

[0006] Accordingly, there is a need for a new composition of wooden credit cards and their manufacturing methods that allow the user to feel the texture of the wood while also being durable and environmentally friendly.

[0007] Related prior art includes Korean Patent Publication No. 10-2022-0031640 (Title of invention: Card including wooden sheet and manufacturing method thereof).

[0008] An embodiment of the present invention provides a wooden credit card and a method for manufacturing the same, which can realize environmental friendliness while allowing the user to feel the texture of wood material due to a wooden sheet, and can provide durability due to a synthetic resin sheet printed with a metal sheet and a multi-layered printed layer.

[0009] The problems to be solved by the present invention are not limited to the problem(s) mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0010] A wooden credit card according to an embodiment of the present invention includes a wooden sheet made of a wooden material, a metal sheet attached to one side of the wooden sheet and made of a metal material, and a synthetic resin sheet attached to one side of the metal sheet, wherein the synthetic resin sheet may be a sheet in which at least one printing layer is printed on an epoxy sheet.

[0011] According to one aspect, the synthetic resin sheet may include an epoxy sheet and a first ink layer printed on the back surface of the epoxy sheet by a silk screen manual printing method.

[0012] According to one aspect, the epoxy print sheet may further include a second ink layer printed on the back surface of the first ink layer by a silk screen automatic printing method.

[0013] According to one aspect, the first ink layer may be an evaporative drying ink, and the second ink layer may be a printing ink.

[0014] According to one aspect, the epoxy print sheet may further include an offset printing layer that is offset printed on the back surface of the second ink layer.

[0015] According to one aspect, the epoxy print sheet may further include a coating layer having adhesive strength that is coated on the upper surface of the epoxy sheet and an ink layer having adhesive strength that is provided on the back surface of the offset printing layer to which an overlay sheet is attached.

[0016] According to one side, a hot melt sheet is provided between the wooden sheet and the metal sheet, and the wooden sheet and the metal sheet can be bonded by melting of the hot melt sheet.

[0017] According to one side, it may further include an EMI sheet provided on the back surface of the metal sheet to shield electromagnetic waves and an inlay sheet provided between the EMI sheet and the synthetic resin layer.

[0018] Meanwhile, a method for manufacturing a wooden credit card according to an embodiment of the present invention is a method for manufacturing a wooden credit card including a wooden sheet made of a wooden material, a metal sheet made of a metal material attached to one side of the wooden sheet, and a synthetic resin sheet attached to one side of the metal sheet, the method including a synthetic resin sheet preparation step of preparing the synthetic resin sheet, and an attachment step of laminating and attaching the metal sheet and the wooden sheet on the synthetic resin sheet, wherein the synthetic resin sheet prepared in the synthetic resin sheet preparation step may be a sheet having at least one printing layer printed on an epoxy sheet.

[0019] According to one aspect, the synthetic resin sheet preparation step may include a first ink layer printing step of printing a first ink layer on the back surface of an epoxy sheet forming the synthetic resin sheet by a silk screen manual printing method, and a second ink layer printing step of printing a second ink layer on the back surface of the first ink layer by a silk screen automatic printing method.

[0020] According to one aspect, the first ink layer may be an evaporative drying ink, and the second ink layer may be a printing ink.

[0021] According to one side, the synthetic resin sheet preparation step may further include an offset printing layer printing step of offset printing an offset printing layer on the back surface of the second ink layer.

[0022] According to one aspect, in the above attachment step, a hot melt sheet may be provided between the wooden sheet and the metal sheet, so that the wooden sheet and the metal sheet may be bonded by melting of the hot melt sheet.

[0023] According to an embodiment of the present invention, the texture of wood material can be felt as it is due to the wooden sheet, while being eco-friendly, and durability can be ensured due to the synthetic resin sheet printed with a metal sheet and a multi-layered printed layer.

[0024] FIG. 1 is images of the front and back of a wooden credit card according to one embodiment of the present invention.

[0025] FIG. 2 is a drawing for explaining the laminated structure of a wooden credit card according to one embodiment of the present invention.

[0026] Figure 3 is a drawing for explaining the structure of the synthetic resin sheet illustrated in Figure 2.

[0027] Figure 4 is a flowchart showing a method for manufacturing a wooden credit card according to one embodiment of the present invention.

[0028] The advantages and / or features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0030] FIG. 1 is images of the front and back of a wooden credit card according to one embodiment of the present invention.

[0031] As illustrated here, a wooden credit card (100) according to one embodiment of the present invention has a front portion made of a wooden material, and a back portion made of a material in which a synthetic resin sheet is coated on a metal sheet.

[0032] FIG. 2 is a drawing for explaining the laminated structure of a wooden credit card according to one embodiment of the present invention, and FIG. 3 is a drawing for explaining the structure of the synthetic resin sheet illustrated in FIG. 2.

[0033] Referring to FIG. 2, a wooden credit card (100) according to one embodiment of the present invention may include a wooden sheet (110), a metal sheet (120), an EMI sheet (140), an inlay sheet (150), a synthetic resin sheet (160), and an overlay sheet (180).

[0034] In addition, although not shown in detail, the wooden sheet (110), the metal sheet (120), and the EMI sheet (140) may be provided with through holes, and the inlay sheet (150) may be provided with a mounting portion, through which a chip pad (190) equipped with an IC chip may be mounted.

[0035] In detail, the IC chip can be mounted on the inlay sheet (150) in a contact or non-contact manner, and thus the wooden credit card (100) of the present embodiment can be used for payment, membership verification, point accumulation, etc. However, although the present embodiment has been described as being applied to a credit card, it is obvious that it can be applied to a check card, prepaid card, membership card, transportation card, or point card.

[0036] By this configuration, the wooden credit card (100) of the present embodiment can be provided with a front portion made of wood and a back portion made of metal, thereby providing a luxurious feel and excellent durability. In other words, it can not only provide the texture of wood as is, but also ensure durability due to the metal material.

[0037] Additionally, because it is made of wood, it is environmentally friendly and has minimal environmental impact when disposed of.

[0038] Referring to FIG. 1, the wooden sheet (110) of the present embodiment can be prepared as a raw wood material that produces the unique material, wood grain, surface texture, and natural beauty of wood.

[0039] The wood material manufactured from a wood sheet (110) well expresses the characteristics of wood, and can be formed by cutting a log harvested from nature into a predetermined size and processing it into a rectangular piece of lumber. Steaming and boiling the lumber to soften the wood tissue and sterilize it can facilitate cutting the lumber. In addition, drying the boiled lumber to contain a certain amount of moisture (about 20 to 30%) can facilitate subsequent processing.

[0040] Meanwhile, if a card is made using only a wooden sheet (110), the wood may warp or twist, easily causing damage. To address this, in this embodiment, a metal sheet (120) is attached to the back of the wooden sheet (110). That is, by laminating a metal sheet (120) having the same shape as the wooden sheet (110), durability can be increased, and a high-quality credit card can be made by expressing a metallic luster.

[0041] The metal sheet (120) of the present embodiment may be made of stainless steel (SUS). The surface of the metal sheet (120) may be polished using a polishing device or a polishing agent. However, in the present embodiment, the metal sheet (120) is described as being made of stainless steel, but it is not limited thereto and it is obvious that the metal sheet (120) may be made of a metal or metal alloy such as titanium, tungsten, or duralumin.

[0042] A hot melt sheet may be interposed between the aforementioned wooden sheet (110) and metal sheet (120), and by applying heat to the hot melt sheet to melt it, the metal sheet (120) and the wooden sheet (110) can be firmly attached.

[0043] At this time, materials such as thermoplastic resins can be applied as hot melt sheets, and unlike those used for plastic sheets, hot melt sheets can be implemented with materials suitable for metal and wood. In addition, temporary attachment of the hot melt sheet to a metal sheet (120) can be performed through a roll laminating process.

[0044] Meanwhile, as illustrated in FIG. 1, an EMI sheet (140) and an inlay sheet (150) may be provided on the lower surface of the metal sheet (120) of the present embodiment.

[0045] In detail, the inlay sheet (150) has an antenna embedded in it through ultrasonic waves, and the antenna is connected to the subsequently mounted chip by wire or cable, enabling contactless payment using NFC, etc. as well as contact payment.

[0046] For example, the inlay sheet (150) is a sheet including a radio frequency (RF) antenna coil, and the number of turns of the coil can be determined to exhibit optimized sensitivity through an RF communication sensitivity test.

[0047] Meanwhile, the synthetic resin sheet (160) of the present embodiment is placed under the inlay sheet (150), as shown in FIG. 2, and multiple printing layers are directly printed on it, thereby optimizing the overall thickness of the card and preventing the warping phenomenon of the wooden sheet (110) described above.

[0048] The synthetic resin sheet (160) of the present embodiment is an epoxy resin-based sheet, and as shown in FIGS. 2 and 3, may include an epoxy sheet (161), a first ink layer (162) printed on the back surface of the epoxy sheet (161), a second ink layer (163) printed on the back surface (162) of the first ink layer, and an offset printing layer (164) offset-printed on the back surface of the second ink layer (163).

[0049] In detail, when the first ink layer (162) is printed on the epoxy sheet (161), a silk screen manual printing method can be applied.

[0050] The first ink layer (162) may be, for example, a white ink, such as an evaporation-drying ink. This ink has good smoothness and does not cause any disruption in pattern implementation, so it can form a smooth film.

[0051] After printing the first ink layer (162) on the epoxy sheet (161) in this way, drying can be performed, and then a second printing layer (163) can be formed using an indoor screen automatic printing method. The ink forming the second printing layer (163) can be a printing ink, and for example, 2871 ink can be applied.

[0052] The ink forming the second ink layer (163) may be formed using a laminating varnish type adhesive before printing the offset printing layer (164) described later. Alternatively, the second ink layer (163) may be formed after forming the offset printing layer (164).

[0053] Since the adhesive of the laminating varnish type has a very fast drying ability and has transparent and fine finishing properties, it can be applied as the ink forming the second ink layer (163) of the present embodiment. However, it is obvious that a different type of ink can be applied as the ink forming the second ink layer (163).

[0054] Meanwhile, an offset printing layer (164) can be printed on the back surface of the second ink layer (163) by an offset printing method, and through this, a synthetic resin sheet (160) of the present embodiment can be prepared.

[0055] After preparing the synthetic resin sheet (160) in this way, a coating layer (171) having adhesive strength is coated on its upper surface to enable attachment to the inlay sheet (150) on top thereof.

[0056] In addition, an ink layer (175) having adhesive strength can be manually silk screen printed on the lower part of a synthetic resin sheet (160) to enable attachment to an overlay sheet (180) placed thereunder.

[0057] Meanwhile, below, a method for manufacturing a wooden credit card according to one embodiment of the present invention will be described with reference to the drawings.

[0058] Figure 4 is a flowchart showing a method for manufacturing a wooden credit card according to one embodiment of the present invention.

[0059] As illustrated herein, a method for manufacturing a wooden credit card (100) according to one embodiment of the present invention may include a synthetic resin sheet preparation step (S100) of forming a plurality of printing layers (162, 163, 164) on an epoxy resin (161) by printing to prepare a synthetic resin sheet (160), and an attachment step (S200) of laminating and attaching a metal sheet (120) and a wooden sheet (110) on the synthetic resin sheet (160).

[0060] The synthetic resin sheet preparation step (S100) of the present embodiment may include, as described above, a first ink layer printing step (S110) of printing a first ink layer (162) on an epoxy resin (161), a second ink layer printing step (S120) of printing a second ink layer (163) on the first ink layer (162), and an offset ink layer printing step (S130) of printing an offset ink layer (164) on the second ink layer (163).

[0061] In the first ink layer printing step (S110), white ink used as an evaporative drying ink can be printed on the back surface of an epoxy resin (161) using a silk screen manual printing method to form a first ink layer (162).

[0062] In the second ink layer printing step (S120), a printing ink can be printed on the surface of the dried first ink layer (162) using an indoor screen automatic printing method to form a second ink layer (163).

[0063] In the offset ink layer printing step (S130), an offset ink layer (164) can be printed on the surface of the dried second ink layer (163) using an offset printing method.

[0064] Meanwhile, in the attachment step (S200) of the present embodiment, as described above with reference to FIG. 2, a wood sheet (110) and a metal sheet (120) can be attached using a hot melt sheet (130), a metal sheet (120) and an EMI sheet (140) can be bonded by an adhesive layer (141), and an EMI sheet (140) and an inlay sheet (150) can be bonded by an adhesive layer (151).

[0065] Likewise, the inlay sheet (150) and the aforementioned synthetic resin sheet (160) can be bonded by an adhesive coating layer (adhesive layer) (171), and the synthetic resin sheet (160) and the overlay sheet (180) can also be bonded by an adhesive ink layer (175). However, it is obvious that the bonding step is not limited to the aforementioned process, and that the wooden credit card (100) of the present embodiment can be manufactured in a different order.

[0066] In this way, according to the present embodiment, the texture of the wood material can be felt as it is due to the wood sheet (110), while eco-friendliness can be realized, and durability can be achieved due to the synthetic resin sheet (160) printed with the metal sheet (120) and the multi-layered printed layer (162, 163, 164).

[0067] While specific embodiments of the present invention have been described so far, it is clear that various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the claims set forth below, but also by equivalents thereof.

[0068] Although the present invention has been described with reference to limited embodiments and drawings, it is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications and variations are possible based on this disclosure. Therefore, the scope of the present invention should be understood solely by the scope of the claims set forth below, and all equivalent or equivalent modifications thereof are deemed to fall within the scope of the present invention.

Claims

1. Wooden sheet made of wood material; A metal sheet attached to one side of the above wooden sheet and made of metal; and A synthetic resin sheet attached to one side of the above metal sheet; Includes, A wooden credit card, characterized in that the above synthetic resin sheet is a sheet in which at least one printing layer is printed on an epoxy sheet.

2. In paragraph 1, The above synthetic resin sheet is, Epoxy sheet; and A wooden credit card characterized in that it comprises a first ink layer printed by a silk screen manual printing method on the back surface of the epoxy sheet.

3. In paragraph 2, The above epoxy print sheet is, A wooden credit card characterized in that it further comprises a second ink layer printed on the back surface of the first ink layer by a silk screen automatic printing method.

4. In Paragraph 3, The above first ink layer is an evaporative drying ink, A wooden credit card, characterized in that the second ink layer is printing ink.

5. In paragraph 3, The above epoxy print sheet is, A wooden credit card characterized in that it further includes an offset printing layer that is offset printed on the back surface of the second ink layer.

6. In Paragraph 5, The above epoxy print sheet is, A coating layer having adhesive strength and coated on the upper surface of the epoxy sheet; and A wooden credit card characterized in that it further includes an ink layer having adhesive strength and an overlay sheet attached to the back surface of the offset printing layer.

7. In Paragraph 1, A wooden credit card characterized by having a hot melt sheet between the wooden sheet and the metal sheet, wherein the wooden sheet and the metal sheet are bonded by the melting of the hot melt sheet.

8. In paragraph 7, An EMI sheet provided on the back surface of the metal sheet to shield electromagnetic waves; and A wooden credit card further comprising an inlay sheet provided between the EMI sheet and the synthetic resin layer.

9. A method for manufacturing a wooden credit card comprising a wooden sheet of wood material, a metal sheet of metal material attached to one side of the wooden sheet, and a synthetic resin sheet attached to one side of the metal sheet, A synthetic resin sheet preparation step for preparing the above synthetic resin sheet; and Attachment step of laminating and attaching the metal sheet and the wood sheet onto the synthetic resin sheet; Includes, A method for manufacturing a wooden credit card, characterized in that the synthetic resin sheet provided during the step of providing the synthetic resin sheet is a sheet in which at least one printing layer is printed on an epoxy sheet.

10. In paragraph 9, The above step of preparing the synthetic resin sheet is, A first ink layer printing step of printing a first ink layer on the back surface of an epoxy sheet forming the synthetic resin sheet by a silk screen manual printing method; and A method for manufacturing a wooden credit card characterized by including a second ink layer printing step of printing a second ink layer on the back surface of the first ink layer by a silk screen automatic printing method.

11. In Paragraph 10, The above first ink layer is an evaporative drying ink, A method for manufacturing a wooden credit card characterized in that the second ink layer is a printing ink.

12. In Paragraph 10, The above step of preparing the synthetic resin sheet is, A method for manufacturing a wooden credit card, characterized by further including an offset printing layer printing step of offset printing an offset printing layer on the back surface of the second ink layer.

13. In paragraph 9, A method for manufacturing a wooden credit card, characterized in that, during the attachment step, a hot melt sheet is provided between the wooden sheet and the metal sheet, and the wooden sheet and the metal sheet are bonded by melting the hot melt sheet.

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