Wooden intelligent card and manufacturing method

Abstract

The invention provides a wooden smart card and a manufacturing method, and relates to the technical field of smart card manufacturing, the wooden smart card comprises an INLAY layer and multiple layers of wood chips which are laminated up and down, the INLAY layer adopts wood sheets, the upper and lower surfaces of the wood sheets are coated with glue or hot melt adhesive paper, at least one wood sheet is laminated on each of the upper and lower surfaces of the INLAY layer, and the upper and lower surfaces of the INLAY layer are coated with glue or hot melt adhesive paper. The upper surface and the lower surface of the INLAY layer are provided with wood sheets, the wood grains of the wood sheets on the upper surface and the lower surface are arranged in different directions, and the intelligent card further comprises two or four net-shaped stainless steel elastic sheets which are arranged on the upper surface and the lower surface of the INLAY layer in an X shape in a diagonal crossing mode. Wood is a renewable resource and is easier to degrade compared with plastic, and pollution to the environment is reduced. The environment pressure in the intelligent card production and waste treatment process is reduced, the pursuit of the modern society for sustainable development is met, and the intelligent card industry is promoted to develop towards the green and environment-friendly direction.

Description

Technical Field

[0001] The invention belongs to the technical field of smart card manufacturing, and more specifically, particularly relates to a wooden smart card and a manufacturing method thereof. Background Art

[0002] In today's digital and information age, smart cards, as a convenient and secure information storage and transmission tool, have been widely used in various fields. However, the existing smart card technology still has some problems that need to be solved.

[0003] Traditional smart cards usually use plastic materials as the card base and INLAY layer. Although this material meets the functional requirements of smart cards to a certain extent, it also brings a series of environmental and performance challenges. From an environmental perspective, plastic materials are not easy to degrade, and a large number of discarded smart cards will cause long-term pollution and pressure on the environment. Moreover, the production of plastic materials often relies on non-renewable petroleum resources, which is not in line with the concept of sustainable development.

[0004] In terms of performance, the structure and material of traditional smart cards are insufficient in terms of bending and twisting resistance, and are easily damaged by external forces during daily use, affecting their service life and reliability. In addition, the appearance of smart cards made of plastic is relatively simple, which makes it difficult to meet consumers' needs for personalization and aesthetics.

[0005] As society pays more and more attention to environmental protection and sustainable development, and consumers pursue product quality and personalization, the smart card industry urgently needs an innovative solution. In terms of material selection, it is imperative to find an alternative material that is both environmentally friendly and can meet performance requirements. At the same time, in terms of manufacturing technology, continuous improvement and innovation are also needed to improve the production efficiency, quality and performance of smart cards.

[0006] In recent years, wood, as a natural and renewable material, has gradually attracted people's attention. Wood has good physical properties and unique aesthetic value. If it can be used in the manufacture of smart cards, it can not only solve environmental problems, but also bring new features and advantages to smart cards. However, it is not easy to apply wood to the manufacture of smart cards, and a series of technical problems need to be solved.

[0007] For example, how to achieve effective signal transmission and chip embedding on wood materials, how to ensure the strength and durability of wooden smart cards, and how to develop a manufacturing process suitable for the characteristics of wood. In addition, it is also necessary to consider how to give full play to the natural texture and feel of wood while meeting functional requirements to achieve personalization and beauty of smart cards.

[0008] It is in this context that the present invention proposes a wooden smart card and a manufacturing method, aiming to overcome the defects of traditional smart cards and bring new development opportunities to the smart card industry. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides a wooden smart card and a manufacturing method to solve the above problems.

[0010] A wooden smart card comprises an INLAY layer and a plurality of wood sheets laminated on top and bottom, wherein the INLAY layer is made of wood sheets, the upper and lower surfaces of the wood sheets are coated with glue or hot-melt adhesive paper, the upper and lower surfaces of the INLAY layer are laminated with at least one wood sheet, and the wood grains of the upper and lower wood sheets are arranged in different directions

[0011] Preferably, the wooden smart card further comprises mesh stainless steel shrapnel arranged in 2, 4 or diagonally crossed X shapes on the upper and lower sides of the I NLAY layer.

[0012] Another technical problem to be solved by the present invention is to provide a method for manufacturing a wooden smart card, comprising the following steps:

[0013] S1: Prepare the INLAY layer using a wood sheet, and apply glue or hot melt adhesive paper on the upper and lower surfaces of the wood sheet;

[0014] S2: embedding the wires on the coated wood chips by ultrasonic method;

[0015] S3: Laminating the upper and lower laminated multi-layer wood slices with the INLAY layer, wherein at least one wood sheet is laminated on each of the upper and lower layers of the INLAY layer, and the wood grains of the upper and lower wood sheets are arranged in different directions.

[0016] Preferably, the wood chips are coated with glue having a thickness of about 0.005 mm to 0.012 mm by silk screen printing or oiling machine.

[0017] Preferably, the wood chips are covered with hot melt adhesive paper with a thickness of about 0.03 mm to 0.10 mm.

[0018] Preferably, the wood chips covered with glue or hot melt adhesive paper are heated and pressurized to be fused.

[0019] Preferably, the embedded wood chips and new wood chips are heated and pressurized on a hot laminator to be fused / bonded to form a wooden card INLAY, and the front and back sides of the INLAY are polished on a "flat wood board polisher" to a suitable thickness.

[0020] Preferably, the required wood chips are added to the front and back of the polished INLAY, glue or hot-melt adhesive paper is added between each layer of the wood chips and the INLAY, heated and pressurized on a laminator to fuse them, then frozen and pressurized to cool them down, and a mold is used to beer out a card body of the required size on a beer machine.

[0021] Preferably, a suitable magnetic strip is attached to the manufactured wooden card, the desired pattern is printed and engraved on the front and back sides by a carbon dioxide laser or CNC, a dual-interface chip is implanted, a holographic icon and a signature strip are embossed, and information data is entered on the chip.

[0022] Preferably, during the lamination process, the grain of the wood veneer is visually identified by a CCD industrial camera, and then the angle of the material is rotated by a control system for lamination.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Environmentally friendly and sustainable: The present invention uses wood materials to make smart cards, replacing traditional plastic materials. Wood is a renewable resource and is more easily degraded than plastic, reducing pollution to the environment. This helps to reduce environmental pressure during the production and disposal of smart cards, meets the pursuit of sustainable development in modern society, and promotes the development of the smart card industry towards green and environmental protection.

[0025] 2. Unique structural enhancement: By laminating wood sheets on the upper and lower INLAY layers, arranging the wood grain in different directions, and adding mesh stainless steel springs on the upper and lower INLAY layers, the bending and twisting resistance of the wooden smart card is significantly improved, enabling it to better withstand various stresses in daily use, reducing the risk of card damage and extending its service life.

[0026] 3. The natural texture of wood provides a unique appearance for smart cards, which can meet the needs of users for personalization and aesthetics. Whether in business occasions or personal use, wooden smart cards can stand out with their unique texture and natural beauty, increasing the attractiveness and added value of the product.

[0027] 4. Manufacturing process innovation: In the manufacturing process, advanced processes such as glue or hot melt adhesive paper coating, ultrasonic embedding, and thermal lamination are used, which not only improves production efficiency, but also ensures the stability and consistency of product quality. At the same time, the innovative method of using CCD industrial cameras for texture recognition and control system to adjust the material angle realizes precise lamination manufacturing.

[0028] 5. Compliance with standards and test requirements: By optimizing the design and manufacturing process, the wooden smart card can comply with relevant standards such as ISO bending and twisting tests, ensuring that the product meets industry requirements in terms of performance and quality, enhancing market competitiveness, and providing reliable guarantees for its wide application in various fields.

[0029] 6. Expanding application areas: Due to its environmental protection, beautiful appearance and high performance, wooden smart cards are expected to be more widely used in traditional smart card application areas such as finance, transportation, access control, and identity recognition. At the same time, it may also open up new markets, such as enterprises and institutions with strong environmental awareness, and special consumer groups that have a demand for personalized, high-quality products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a flow chart of the manufacturing method of the present invention;

[0031] Figure 2 This is a schematic diagram of the main components of the wooden smart card of the present invention;

[0032] Figure 3 It is a schematic diagram of adding intersecting steel sheets into the wooden smart card of the present invention;

[0033] Figure 4 It is a schematic diagram of adding two steel sheets to the wooden smart card of the present invention;

[0034] Figure 5 It is a schematic diagram of adding four steel sheets into the wooden smart card of the present invention.

[0035] Reference numerals:

[0036] 10. INLAY layer; 20. First wood chip layer; 30. Second wood chip layer; 40. Third wood chip layer; 50. Fourth wood chip layer; 60. Mesh stainless steel spring. DETAILED DESCRIPTION

[0037] With the continuous development of science and technology, the application of smart cards is becoming more and more extensive. However, traditional smart cards usually use plastic materials as the card base and INLAY layer, which have problems such as being difficult to degrade and easy to cause environmental pollution. The wooden smart card and manufacturing method proposed in the present invention are intended to solve these problems and provide a smart card solution with unique performance and environmental advantages.

[0038] See also Figure 1-5, is an embodiment of a wooden smart card composed of a four-layer wooden layer structure disclosed in the present invention, which is mainly composed of an INLAY layer 10 and a first wooden chip layer 20, a second wooden chip layer 30, a third wooden chip layer 40, and a fifth wooden chip layer 50 laminated up and down. The INLAY layer 10 is located in the middle of the card and plays the role of carrying the smart chip and the antenna. The laminated multi-layer wooden chips provide strength and stability for the card. The upper and lower surfaces of the INLAY layer 10 are laminated with the first wooden chip layer 20 and the second wooden chip layer 30, and the wooden grains of the first wooden chip layer 20 and the second wooden chip layer 30 are arranged in different directions. The upper and lower surfaces of the first wooden chip layer 20 and the second wooden chip layer 30 are laminated with the third wooden chip layer 40 and the fifth wooden chip layer 50, respectively, and the wooden grains of the first wooden chip layer 20 and the third wooden chip layer 40 are arranged in different directions, and the wooden grains of the second wooden chip layer 30 and the fifth wooden chip layer 50 are arranged in different directions. In this way, the card's anti-bending and twisting performance can be enhanced to meet the relevant standards of smart cards. The wood used to make wooden smart cards should be selected from species with uniform texture, moderate density and clear texture, such as birch, beech, etc. These woods have good processing performance and strength, which can ensure the quality and service life of the card. The glue should be selected from products with good bonding performance, environmental protection and non-toxicity to ensure that the bonding between the wood chips is firm and reliable. The hot melt adhesive paper should have a suitable melting point and viscosity to meet the requirements of the production process.

[0039] Manufacturing equipment and tools:

[0040] 1. Gluing equipment:

[0041] Silk screen printer or oiling machine: used to evenly apply glue on the wood slices, ensuring that the glue thickness is controlled between 0.005mm-0.012mm;

[0042] Hot melt adhesive paper laminating equipment: can accurately laminat hot melt adhesive paper with a thickness of about 0.03mm-0.10mm on the wood slice;

[0043] Ultrasonic wire embedding equipment: equipped with high-precision ultrasonic generator and control device, it can accurately embed copper wires on the glued wood slices to form antennas that can be used for contactless smart cards;

[0044] Thermal laminator: It can provide uniform heating and pressure to ensure that the glue or hot melt adhesive paper between the wood pieces is fully integrated to achieve a good bonding effect;

[0045] Plane wood board sander: with high-precision sanding platform and adjustable sanding parameters, it can sand the laminated INLAY to the appropriate thickness;

[0046] Beer machine: equipped with precise molds and pressure control system, it can process cards into required size and shape;

[0047] Laser printing and engraving equipment and CNC equipment: used to print and engrave the required patterns on the front and back of wooden cards;

[0048] Chip implantation equipment and information entry equipment: can accurately implant dual-interface chips into wooden cards and enter information on the chip.

[0049] 2. Manufacturing process:

[0050] Step 1: Preparation of INLAY layer 10: First, select a suitable wood veneer, and use a screen printer or oiler to evenly coat a layer of glue with a thickness of about 0.005mm-0.012mm on its surface. Alternatively, use a hot melt adhesive paper laminating device to laminate a hot melt adhesive paper with a thickness of about 0.03mm-0.10mm on the wood veneer, and then heat and pressurize the wood veneer coated with glue or laminated with hot melt adhesive paper to fuse them together. The heating temperature is usually controlled at 80-100℃, the pressure is controlled at 2-3MPa, and the time is about 5-10 minutes. Next, use an ultrasonic wire embedding device to bury copper wires on the glued wood veneer to form an antenna. The frequency and power of the ultrasonic wave are adjusted according to the material and thickness of the wood veneer to ensure that the copper wire can be firmly embedded in the wood veneer. Finally, the embedded wood veneer and another new wood veneer are heated and pressurized on a hot laminator to fuse / bond them together to form the INLAY layer 10. The temperature of the hot laminator is controlled at 120-150°C, the pressure is controlled at 3-5MPa, and the time is about 10-15 minutes;

[0051] Step 2: Grinding of INLAY layer 10: Put the prepared INLAY layer 10 into a flat wood board grinder to grind the front and back sides. The sandpaper grit of the grinder is selected according to the needs, usually grinding from coarse to fine until the thickness of INLAY layer 10 reaches the appropriate size, generally 0.5-1mm;

[0052] Step 3: Making the wooden card body: Add the required first wood chip layer 20, second wood chip layer 30, third wood chip layer 40, and fourth wood chip layer 50 to the front and back of the polished INLAY layer 10, add glue or hot melt adhesive paper between every two layers, and put the stacked wood chips into a laminator for heating and pressurization treatment to fuse the layers together. The heating temperature is controlled at 150-180℃, the pressure is controlled at 5-8MPa, and the time is about 15-20 minutes. Then, it is subjected to freezing and pressurization treatment to quickly cool down and solidify, and the pressure is controlled at 3-5MPa for about 5-10 minutes. Finally, the mold is used to beer the card into the required size and shape on the beer machine to complete the production of the wooden card body;

[0053] Step 4: Post-processing of wooden cards: stick a suitable magnetic stripe on the wooden card. The position and adhesion strength of the magnetic stripe should meet the relevant standards. Use carbon dioxide laser printing and engraving equipment or CNC equipment to print and engrave the required patterns on the front and back of the wooden card. The accuracy and clarity of the pattern should meet the design requirements. Implant the dual-interface chip to ensure that the connection between the chip and the card is stable and reliable. Hot-stamp a holographic icon and signature strip on the wooden card to enhance the anti-counterfeiting performance and personalized features of the card. Enter information on the chip, including user information, transaction records, etc.

[0054] Grain direction design: During the production process of the INLAY layer 10, the wood grains of the first wood chip layer 20 and the second wood chip layer 30 laminated on top of each other should be arranged in different directions. For example, the grain of the first wood chip layer 20 can be longitudinal, while the grain of the second wood chip layer 30 can be transverse; or the first wood chip layer 20 is inclined at 45 degrees, while the second wood chip layer 30 is inclined at 135 degrees. Such a cross arrangement can effectively enhance the bending and twisting resistance of the card. The grains of the wood chips in the outermost surface layer and the bottom layer and the adjacent layers should also be arranged according to the same principle to ensure the structural stability of the entire card.

[0055] Grain recognition and control: During the production process, the grain of the wood veneer is visually recognized through the CCD industrial camera. The CCD industrial camera is installed on the production line and can capture images of the wood veneer in real time and transmit the images to the control system. After receiving the images, the control system uses the image processing algorithm to analyze and judge the direction of the grain. If the angle of the material needs to be adjusted, the control system will issue a command to the corresponding rotating device to rotate the material to the correct angle before laminating. In order to ensure the accuracy and consistency of the grain layout, the CCD industrial camera and control system need to be calibrated and maintained regularly to ensure their normal operation and accuracy.

[0056] Adding mesh stainless steel shrapnel 60: In order to further improve the bending and twisting resistance of the wooden smart card and make it meet the ISO bending and twisting test standard, mesh stainless steel shrapnel 60 can be added to the upper and lower surfaces of the INLAY layer 10. The material of the mesh stainless steel shrapnel 60 should be stainless steel with good elasticity and corrosion resistance, such as 304 stainless steel. The mesh shape and size of the mesh stainless steel shrapnel 60 should be selected according to the size and design requirements of the card. Usually, the side length of the mesh is between 2-5mm;

[0057] After the INLAY layer 10 is manufactured, the mesh stainless steel spring sheet 60 is placed on the upper and lower sides of the INLAY layer 10. The mesh stainless steel spring sheet 60 may include two parallel or cross-arranged pieces, or four arranged in a rectangular shape, and is tightly attached to the INLAY layer 10. The mesh stainless steel spring sheet 60 may be fixed to the INLAY layer 10 using glue or other fixing methods to ensure that the mesh stainless steel spring sheet 60 will not shift or fall off during subsequent processing.

[0058] Before production, quality inspections are conducted on raw materials such as wood, glue, hot melt adhesive paper, copper wire, magnetic stripe, and chips to ensure that they meet relevant standards and design requirements. Inspection items include the physical properties, chemical properties, and dimensional accuracy of materials. During the production process, real-time inspections are conducted on products in each process. For example, after the gluing process, the thickness and uniformity of the glue are inspected; after the wire embedding process, the position and performance of the antenna are inspected; after the lamination process, the interlayer bonding strength of the card is inspected, etc. The finished wooden smart cards are subjected to comprehensive quality inspections, including appearance inspections, size inspections, and performance inspections. Appearance inspections mainly check whether there are defects on the surface of the card, whether the pattern is clear, and whether the color is uniform; size inspections mainly check whether the length, width, and thickness of the card meet the standards; performance inspections mainly include the read and write performance, bending and twisting resistance, magnetic stripe performance, and chip performance of the smart card. Strict quality inspection standards are formulated to ensure that the quality of wooden smart cards meets industry standards and customer requirements. Inspection standards should include national standards, industry standards, and standards formulated within the enterprise. Products that fail the inspection should be classified and processed. Products with minor defects can be reworked and repaired; products with serious defects should be scrapped. At the same time, the causes of defective products should be analyzed and summarized, and corresponding improvement measures should be taken to prevent similar problems from happening again.

[0059] The production environment of wooden smart cards should be kept clean, dry and well ventilated. The temperature should be controlled at 20-25℃ and the relative humidity should be controlled at 40%-60% to ensure the performance stability and product quality of materials such as glue and hot melt adhesive paper. The production workshop should be equipped with dust and anti-static equipment to prevent dust and static electricity from affecting the production and performance of the cards.

[0060] Operators should undergo professional training, be familiar with the operation and maintenance methods of production equipment, strictly abide by the operating procedures, and regularly perform maintenance and upkeep on production equipment to ensure its safe operation. Electrical equipment should be grounded and insulated to prevent electric shock accidents. When using chemical materials such as glue and hot-melt adhesive tape, protective gloves, masks and other protective equipment should be worn to avoid contact with the skin and inhalation of harmful gases. Emergency plans should be formulated to rehearse and prevent possible fires, explosions and other accidents to ensure the safety of personnel and equipment.

[0061] Wooden smart cards use natural wood as the main material, which is renewable and degradable. Compared with traditional plastic smart cards, they are more environmentally friendly. They meet the needs of modern society for environmentally friendly products and help enhance the social image and brand value of enterprises. Wood has unique texture and feel, which can provide a rich appearance for smart cards. At the same time, through laser printing and engraving and CNC processing technology, personalized patterns and texts can be realized on the cards to meet the personalized needs of different customers. The special structure and material of wooden smart cards make them have better anti-bending and twisting performance, which can effectively prevent card damage and information leakage. In addition, the use of advanced encryption technology and anti-counterfeiting measures can further improve the security and reliability of smart cards. Wooden smart cards can be used in finance, transportation, access control, identity recognition and other fields. With the continuous expansion of the smart card market and the increasing demand for environmentally friendly products, wooden smart cards have broad market prospects and development space.

[0062] The wooden smart card and manufacturing method proposed in the present invention realize the environmentally friendly production and high-performance application of smart cards through innovative design and process. During the manufacturing process, the quality and process parameters of each link are strictly controlled to ensure that the product meets relevant standards and customer needs. In the future, with the continuous advancement of technology and the continuous expansion of the market, wooden smart cards are expected to become mainstream products in the field of smart cards, contributing to the development of environmental protection and the smart card industry.

[0063] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A wooden smart card, characterized in that: It includes an INLAY layer and multiple wood slices laminated up and down. The INLAY layer is made of wood veneer. The upper and lower surfaces of the wood veneer are coated with glue or hot-melt adhesive paper. The upper and lower surfaces of the INLAY layer are each laminated with at least one wood veneer, and the wood grains of the upper and lower wood veneers are arranged in different directions.

2. A wooden smart card as claimed in claim 1, characterized in that: The wooden smart card also includes mesh stainless steel shrapnel arranged in 2, 4 or diagonally crossed X shapes on the upper and lower sides of the INLAY layer.

3. A method for manufacturing a wooden smart card, characterized in that: The following steps are involved: S1: Prepare the INLAY layer using a wood sheet, and apply glue or hot melt adhesive paper on the upper and lower surfaces of the wood sheet; S2: embedding the wires on the coated wood chips by ultrasonic method; S3: Laminating the upper and lower laminated multi-layer wood slices with the INLAY layer, wherein at least one wood sheet is laminated on each of the upper and lower layers of the INLAY layer, and the wood grains of the upper and lower wood sheets are arranged in different directions.

4. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: The wood chips are coated with glue with a thickness of about 0.005mm-0.012mm by silk screen printing or oiling machine.

5. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: The wood chips are covered with hot melt adhesive paper with a thickness of about 0.03mm-0.10mm.

6. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: Heat and pressure are applied to the wood pieces covered with glue or hot melt adhesive paper to fuse them together.

7. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: The embedded wood chips and new wood chips are heated and pressurized on a hot laminator to fuse / bond them into a wooden card INLAY, and the front and back sides of the INLAY are sanded on a flat wood board sander to a suitable thickness.

8. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: Add the required wood chips on the front and back of the polished INLAY, add glue or hot-melt adhesive paper between each layer of the wood chips and INLAY, heat and pressurize them on a laminator to fuse them, then freeze and pressurize them to cool them down, and use a mold to beer out the card body of the required size on a beer machine.

9. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: A suitable magnetic strip is attached to the finished wooden card, the required pattern is printed and engraved on the front and back with a carbon dioxide laser or CNC, a dual-interface chip is implanted, a holographic icon and signature strip are hot-stamped, and information data is entered on the chip.

10. A method for manufacturing a wooden smart card as claimed in claim 3, characterized in that: During the lamination process, the CCD industrial camera visually identifies the grain of the wood veneer, and then the control system rotates the angle of the material for lamination.

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