Carbon fiber package

Abstract

To provide a carbon fiber package in which carbon fiber is wound around a bobbin, which allows the product to be identified by a first label attached to the inner peripheral surface of the bobbin even after the carbon fiber is wound, and which provides means for a customer to reliably obtain information that the carbon fiber has been completely used even after the carbon fiber product has been exported by a second label attached to the outer peripheral surface of the bobbin at a position covered by the wound carbon fiber, thereby enabling the customer to secure consumption information.SOLUTION: The carbon fiber package is formed by winding a carbon fiber bundle onto a bobbin, the carbon fiber package having a first label on the inner peripheral surface of the bobbin and a second label on the outer peripheral surface of the bobbin in a position covered by the wound carbon fiber.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a carbon fiber package, and more specifically, to a carbon fiber package having a first label on the inner peripheral surface of a bobbin used when winding carbon fibers, and further having a second label at a position covered by the wound carbon fibers on the outer peripheral surface of the bobbin.

Background Art

[0002] Due to its high quality, carbon fiber can be diverted to military uses not only in aerospace applications, industrial applications, sports applications for civilian use, but also as materials for weapons of mass destruction and conventional weapons such as high-performance centrifuges for uranium enrichment required for missile and nuclear weapon development. It is known to be a so-called dual-use general-purpose product used in both military and civilian applications. Therefore, for the purpose of corporate defense such as maintaining international peace and security and avoiding risks involved in brokering transactions, in order to prevent carbon fiber from reaching countries or organizations with security concerns such as those engaged in the development or manufacture of weapons of mass destruction and conventional weapons, there is a security trade control that conducts export control under the international export control regime centered on developed countries for the export of carbon fiber. In the export control operations related to security trade control, when conducting the export of goods, the provision of services, or the transaction of services, it is generally necessary to conduct the non-determination of the goods and services in advance (hereinafter referred to as the non-determination of goods and the like). For carbon fiber exported from Japan, if there is a risk of being involved in the development or proliferation of weapons of mass destruction or the excessive accumulation of conventional weapons based on the non-determination of goods and services such as its end use and end user, that is, if it is determined that there is a risk of threatening international peace and security, the export is not permitted, and security trade control is extremely important.

[0003] In the export of regulated goods, regulated goods are defined in the Foreign Exchange and Foreign Trade Law, which is a law regarding Japan's security trade control, cabinet orders such as the Export Trade Control Order, and ministerial ordinances on goods, etc. Carbon fiber is also one of the regulated goods. As Japan's security export control system, there are list control and catch-all control. List control targets goods with certain specifications or more, such as carbon fiber. Based on international agreements, goods that are likely to be used in the development of weapons, weapons of mass destruction, etc. and conventional weapons are listed in cabinet orders. When exporting, permission from the Minister of Economy, Trade and Industry is generally required. In addition, catch-all control focuses on the customer and the use. When there is a risk that goods not subject to list control may be used in the development of weapons of mass destruction or conventional weapons, etc., permission from the Minister of Economy, Trade and Industry is required. Since catch-all control complements list-controlled products, it is also called complementary export control.

[0004] Carbon fiber is positioned as a good with a high risk of being used in the development of weapons of mass destruction and conventional weapons, etc. When exporting carbon fiber, it is required to prevent diversion to suspicious uses such as the development and manufacture of weapons of mass destruction and conventional weapons by the customer, etc. Therefore, exporters who export carbon fiber from Japan to foreign countries as a business are required to apply for an export license and obtain an export license from the Minister of Economy, Trade and Industry. In the event of malicious illegal exports, not only criminal penalties but also sanctions such as export bans for a certain period and the cancellation of the export license itself will have a great impact on the company's business under the Foreign Exchange and Foreign Trade Law.

[0005] However, in recent years, the risk of unauthorized leakage of carbon fiber to customers other than the export destination where the exporter obtained an export license unintentionally has increased in a form that deviates from such strict security trade control. Therefore, in order to prevent the outflow of carbon fiber to customers other than the export destination, exporters of carbon fiber are forced to introduce a mechanism for consumption management in units of carbon fiber packages wound around paper tubes.

[0006] Such carbon fibers that require strict consumption management are generally made into carbon fiber packages by being wound around a cylindrical paper tube with a square end shape that is less likely to lose its shape during winding and when transporting the product package, which is the final process of the carbon fiber manufacturing process. Also, in order to make the basic information of the carbon fiber package, such as the carbon fiber manufacturer, trademark name, production country, variety name, production date, lot number, line number, etc., known, conventionally, a label with a barcode printed on the inner peripheral surface of the paper tube is attached, or unique information such as ID information for carbon fiber circulation management and quality control is recorded, or a non-contact IC tag using RFID (Radio Frequency Identification) that enables reading and writing of such information by wireless communication is attached. However, since these barcode labels and non-contact IC tags are attached or mounted on the paper tube itself around which the carbon fiber is wound, if the carbon fiber package itself, which is the product wound around the paper tube, is illegally leaked to a third party other than the customer, there is a problem that the destination of the carbon fiber package cannot be traced.

[0007] Patent Document 1 describes a carbon fiber package in which a non-contact IC tag is embedded in the paper tube or attached to the inner or outer peripheral surface of the paper tube, and carbon fiber is wound around this paper tube. This non-contact IC tag uses electromagnetic waves for information transmission, and usually, due to the influence of the radio wave absorption property of carbon fibers, information transmission failure due to poor electromagnetic wave communication may occur, but in the carbon fiber package using the non-contact IC tag, information reading is stable.

[0008] Patent Document 2 relates to a paper tube for winding a winding object such as a plastic film, a yarn, a cloth, a paper, a metal foil, etc., and describes a paper tube with an IC tag in which a non-contact IC tag is attached to the outer peripheral surface of a cylindrical body with an inner cylinder body that fits into the inner peripheral surface of the end of the paper tube body or a short cylindrical body with a flange. Since this non-contact IC tag does not appear on the outer surface, it is protected by the paper tube body and can be reliably read without being damaged by contact with other objects.

[0009] Patent Document 3 describes a roll core in which a seal consisting of a recording section with characters and symbols such as those hitting the front or back, coming off, product names, company names, etc. is attached to the outer peripheral surface of the roll core at the pasting section. This is a product package in which toilet paper, paper towels, or aluminum foil is wound around the roll core in a covering manner, and it becomes possible to detect hitting and coming off only after all of the toilet paper, paper towels, and aluminum foil have been used up.

[0010] Patent Document 4 shows in Fig. 2(a) a barcode label attached in the circumferential direction to the outer peripheral surface of a cylindrical object such as a paper tube. The barcode label is provided on the upper circumferential surface, and by making the width of the bars constituting both sides of the barcode label thicker in advance than the reference width of the bars, the error in which the width of the bars is read as smaller due to the circumferential surface can be suppressed on both sides of the barcode where this error is the largest. By this means, it is possible to follow the error in the width of the bars due to the circumferential surface and reduce defective barcode reading. When reading a barcode label attached to the outer peripheral surface of a cylindrical object, since the width of the barcode decreases compared to when it is attached to a flat surface, by making the width of the bars located on both sides in the width direction of the barcode thicker than the reference width in advance, the error in which the width of the bars is read as smaller due to the circumferential surface can be suppressed, and defective reading of the barcode attached to the cylindrical outer peripheral surface can be reduced.

Prior Art Documents

Patent Documents

[0011]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0012] However, in Patent Documents 1 and 2, since the IC tag is attached to the paper tube, product information can be read using a reader without using carbon fiber wound around the paper tube with the IC tag. Therefore, after exporting the carbon fiber package, which is the product, to the customer, it is not possible to obtain information on the consumption of the product after the customer uses the carbon fiber. That is, since it is impossible to track up to the final consumption stage or disposal stage by the customer, it remains unknown whether the carbon fiber has been used as planned by the customer.

[0013] In Patent Document 3, although a seal is attached to the outer peripheral surface of the roll core, since there is no seal displaying information about the product on the inner peripheral surface of the roll core, in the state where the product is wound around the roll core, the seal on the outer peripheral surface cannot be seen, and nothing that can identify the product can be seen, so product management during production and shipment to customers cannot be carried out.

[0014] Also in Patent Document 4, although a barcode label is attached to the outer peripheral surface of a cylindrical object such as a paper tube, in the state where the product is wound around the cylindrical object, the barcode label on the outer peripheral surface cannot be seen, and nothing that can identify the product can be seen, so product management during production and shipment to customers cannot be carried out. In any of the patent documents, it was not possible to ensure a state where tracking from the production stage, which is the product distribution route, to the final consumption stage or disposal stage by the customer is possible.

[0015] An object of the present invention is to solve such problems of the prior art. In a carbon fiber package in which carbon fiber is wound around a bobbin made of a paper tube, even after winding the carbon fiber with a first label attached to the inner peripheral surface of the bobbin, the product can be identified, and by a second label attached to a position covered by the carbon fiber wound around the outer peripheral surface of the bobbin, it is possible to provide a carbon fiber package that can ensure consumption information by the customer by providing a means to obtain information that the customer has surely completely used the carbon fiber even after exporting the carbon fiber, which is the product.

Means for Solving the Problems

[0016] In order to solve the above problems, the present invention has the following configurations. (1) A carbon fiber package in which carbon fibers are wound around a bobbin, the inner peripheral surface of the bobbin having a first label, and a second label at a position covered by the wound carbon fibers on the outer peripheral surface of the bobbin. (2) The carbon fiber package according to claim 1, wherein the second label has at least one of a barcode, a QR code (registered trademark), and an RFID code. (3) The carbon fiber package according to (1) or (2), wherein a special code that does not exist on the first label is assigned to the second label. (4) The carbon fiber package according to (3), wherein the special code is a unique ID value consisting of numbers and alphabets based on a GUID (Globally Unique Identifier). (5) The carbon fiber package according to any one of (1) to (4), wherein a barcode is printed on the first label.

Advantages of the Invention

[0017] According to the present invention, after exporting the carbon fiber package to a customer, by providing a means to surely obtain information that the customer has used the carbon fiber, it becomes possible to obtain consumption information regarding the carbon fiber by the customer.

Modes for Carrying Out the Invention

[0018] The carbon fibers of the present invention are not particularly limited and are known carbon fibers. In addition to polyacrylonitrile-based carbon fibers using polyacrylonitrile, pitch, rayon, etc. as precursor fibers which are raw materials for carbon fibers, pitch-based carbon fibers, rayon-based carbon fibers, etc. may be mentioned. In particular, polyacrylonitrile-based carbon fibers from which high-strength carbon fibers are easily obtained are preferred. Here, the carbon fiber is a bundle of several hundred to several hundred thousand filaments which are single fibers constituting the carbon fiber, and the number of filaments of the carbon fiber is 500 to 60,000. Further, the form of the carbon fiber may be any of an untwisted yarn without twist, a twisted yarn twisted in a certain direction, and a untwisted yarn obtained by untwisting the twisted yarn, and is not particularly limited.

[0019] Regarding the types of the above carbon fibers, they are not particularly limited. For example, in the case of polyacrylonitrile-based carbon fibers, carbonized fibers can be obtained by carbonization treatment at a temperature of 1000 to 2000 °C in an inert atmosphere such as nitrogen. Further, by heat-treating the carbonized fibers at a higher temperature of 2000 to 2500 °C in an inert atmosphere such as nitrogen, graphite fibers having a higher elastic modulus can be obtained. The carbon fibers of the present invention may be any of such carbonized fibers or graphite fibers.

[0020] Examples of the material of the bobbin for winding the carbon fibers of the present invention include paper, vinyl chloride, fiber-reinforced plastics containing reinforcing fibers such as thermosetting resins and glass fibers. However, since it is the cheapest and easiest to process, the bobbin is preferably a paper tube, and its shape is preferably cylindrical. Here, the outer peripheral surface of the bobbin on which the carbon fiber is wound is referred to as the outer peripheral surface, and the inner peripheral surface of the bobbin is referred to as the inner peripheral surface.

[0021] As for the above paper tube, as long as it is made of paper, the types of the paper tube and the surface processed part on the outer periphery of the paper tube are not particularly limited. The type of surface processing on the outer peripheral surface of the paper tube is not particularly limited, but in order to prevent the carbon fiber package from partially or entirely sliding downward due to the impact during storage or transportation and the self-weight of the carbon fiber, resulting in the deterioration of the shape of the carbon fiber package, it is preferable to perform embossing on the entire outer peripheral surface of the paper tube around which the carbon fiber is wound by gripping the carbon fiber on the embossed protrusions after winding the carbon fiber around the outer peripheral surface of the paper tube.

[0022] Among the shapes of the carbon fiber package of the present invention, such as the square end type and the taper end type, the square end type is preferable because of its excellent package form maintainability, but it is not particularly limited.

[0023] A first label with a barcode printed thereon is attached to the inner peripheral surface of the bobbin of the present invention. Generally, barcodes are used for product identification and are one-dimensional codes composed of a plurality of stripe patterns formed by a combination of black portions of bars, which are lines of different thicknesses, and white portions of spaces, which are spaces of different thicknesses. The color of the barcode is often black for the bars and white for the spaces, but as long as it is a color shade within the range that can be read by a barcode reader, the color of the stripe pattern of the barcode does not have to be limited to black and white.

[0024] The above barcode reader uses a red LED, a red laser diode, etc., optically reads from one end to the other end of the stripe pattern of the barcode in a straight line, and can efficiently identify the product by converting it into digital information such as alphabets, numbers, and symbols. The barcode on the first label contains product information such as the manufacturer, trademark name, production country, variety name of carbon fiber, manufacturing date, lot number (production lot), line number, winding weight of carbon fiber, and winding length of carbon fiber.

[0025] Since the printing or marking cost of barcodes and the introduction cost of barcode readers are relatively low, the operation of barcode readers is simple, and the reading error rate is very low, it is excellent in terms of economy, operability, and data accuracy. On the other hand, in order to read the bar with a barcode reader, it is necessary to scan the barcode reader so as to cross the stripe pattern of the barcode anywhere. Therefore, if there is dirt other than the barcode on the barcode part, it will be determined as something different from the original barcode, and if there is damage or the color of the bar is light on the barcode, it will cause a defect in the barcode, resulting in non-reading or misreading of the barcode. For this reason, it is necessary to ensure that the barcode printed on the first label on the inner peripheral surface of the bobbin of the carbon fiber package has no wrinkles, dirt, or tears, and there are no defects in the bars of the barcode. In addition, in case the barcode cannot be read due to dirt or damage to the barcode, or a malfunction of the barcode reader, alphabets and numbers called visible characters are often printed above or below the barcode in order to visually read the barcode information and manually process the barcode data.

[0026] The position of the barcode on the first label on the inner peripheral surface of the bobbin is not particularly limited as long as it is a position where the barcode reader can read it, but it is preferably at the end of the bobbin where it is easy to attach the first label to the inner peripheral surface of the bobbin and easy to read with the barcode reader. Also, if the longitudinal direction of the bars or spaces of the barcode is parallel to the axial direction of the paper tube, that is, if the stripe pattern is arranged in the circumferential direction of the bobbin, it is more preferable because the barcode can be read at the end of the inner peripheral surface of the bobbin and the operability of the barcode reader is improved.

[0027] By attaching a barcode to the first label in this way, it is possible to prevent mis-shipment by comparing with the basic information of the product when winding or shipping the carbon fiber. Also, in order to be directly visually confirmed, product information itself such as the manufacturer, trademark name, country of production, variety name of carbon fiber, manufacturing date, lot number (production lot), line number, winding weight of carbon fiber, and winding length of carbon fiber may be printed on the first label in addition to the barcode.

[0028] However, in a state where only the first label having a barcode on the inner peripheral surface of the bobbin, which was found in the conventional carbon fiber package, is present, it is impossible to manage whether all the carbon fibers of the carbon fiber package have been used by the customer or to control the outflow of the carbon fiber package to non-customers.

[0029] Therefore, in addition to the first label on the inner peripheral surface of the bobbin, the present invention has a second label at a position covered by the carbon fibers wound around the outer peripheral surface of the bobbin, so that after exporting the carbon fiber package to the customer, it is possible to confirm information that all the carbon fibers have been unwound from the bobbin from the carbon fiber package by the customer, that is, information that all the carbon fibers have been used up. As a result, it is possible to prevent the outflow of the carbon fiber package to non-customers. In this way, if the carbon fibers cover the second label on the outer peripheral surface of the bobbin, the second label cannot be visually recognized in the form of the carbon fiber package, and the second label can be visually recognized on the outer peripheral surface of the bobbin only when all the carbon fibers have been used.

[0030] Here, the fact that the second label is at a position covered by the carbon fibers wound around the outer peripheral surface of the bobbin means that various codes on the second label, that is, a barcode, a QR code (registered trademark), and an RFID code, cannot be visually confirmed in the carbon fiber package in which the carbon fibers are wound, and the barcode, QR code (registered trademark), and RFID code that appear on the outer peripheral surface of the bobbin for the first time after all the carbon fibers have been used can be read by a reader for each code. By having such a form, it is possible to track the information that all the carbon fibers have been used by the customer and have not flowed out to non-customers. This makes the most of the feature that, because of the excellent electromagnetic wave shielding characteristics of the carbon fibers, the barcode, QR code (registered trademark), and RFID code on the second label cannot be read by a reading machine in the form of the carbon fiber package in which the carbon fibers are wound around the bobbin.

[0031] The second label on the outer peripheral surface of the bobbin of the carbon fiber package is preferably at least one code selected from the group consisting of a barcode, a QR code (registered trademark), and an RFID code. Information that can identify the unique information of the carbon fiber package, which is the product, is written in these codes.

[0032] The barcode of the second label preferably has a special code in which identification information of the carbon fiber package that is not on the barcode of the first label is recorded. Further, the direction of the barcode on the second label that appears on the outer peripheral portion of the bobbin after all the carbon fibers of the carbon fiber package have been used may be any direction that can be read by a barcode reader and is not particularly limited.

[0033] While a barcode, which is a one-dimensional code, has information that can be recorded only in the horizontal direction of the stripe pattern, the QR code (registered trademark) of the second label is a two-dimensional code that can have information recorded both vertically and horizontally, and can record considerably more data than the one-dimensional barcode. The shape of the QR code (registered trademark) is often rectangular or square, but a square with the least waste of space is preferred. A barcode is a one-dimensional code that records only alphanumeric characters, while the QR code (registered trademark) is a code that can record not only alphanumeric characters but also Chinese characters and symbols. In order to optically read the QR code (registered trademark), which is a two-dimensional code, quickly and accurately in all directions with a smartphone camera or a dedicated QR code reader, it is necessary to correctly recognize not only the position of the QR code (registered trademark) but also the orientation of the QR code (registered trademark) such as up, down, left, and right so that reading from various angles is also supported. For this purpose, square patterns called finder patterns are arranged at three corners of a rectangle or square of the QR code (registered trademark) formed by a complex combination of black and white cells for positioning the QR code (registered trademark). The shape of the finder pattern is preferably a square with the least waste of space. When crossing the center of this square finder pattern, the ratio of black to white (black:white:black:white:black) does not change regardless of the reading direction, so the QR code (registered trademark) can be accurately read even when the QR code reader is used horizontally or obliquely. In addition to the finder pattern, the structure of the QR code (registered trademark) includes data cells, which are black and white squares where data is stored as the smallest unit constituting the QR code (registered trademark), alignment patterns, which are small squares arranged inside the QR code to correct the distortion of the QR code (registered trademark), and timing patterns, which are black and white patterns arranged vertically and horizontally within the data area of the QR code (registered trademark) to identify the positions of the data cells. Also, a quiet zone, which is a blank area necessary for QR code reading, is provided around the QR code (registered trademark).

[0034] By having a QR code (registered trademark) on the second label, not only can a large amount of data be acquired quickly and accurately at once, but it can be read regardless of the direction in which the QR code reader is used. It is excellent in work efficiency, accuracy, and operability, and an improvement in work efficiency such as inventory management and logistics of carbon fiber packages can be expected.

[0035] The RFID (Radio Frequency Identification) code of the second label is generally a system that accurately reads and identifies product information through wireless communication, that is, the transmission and reception of radio waves, using tags or cards with built-in IC chips and antennas as media, and additional data can also be written. The dedicated tag of this RFID code is called an RF tag, which is an information medium that reads and writes the data in the built-in memory non-contact. The basic structure of this tag consists of an IC chip, which is a small electronic circuit for recording information, an antenna for transmitting and receiving radio waves between the RFID reader and the IC chip, and a substrate for supporting the IC chip and the antenna. RFID sends radio waves from a reader / writer, called a reader / writer, to the RF tag attached to the product to be identified, and reads or writes the ID information of the product to be identified non-contact. Since it is a system that can read and write the data of the tag non-contact using radio waves, unlike the barcode scan, RFID can scan multiple tags at once with radio waves, and as long as it is within the range where the radio waves reach, the tag can be read even if it is far away. Also, the advantage of the RFID code is that it can be used even when foreign substances such as tape or mud adhere to the RF tag and the surface is dirty, or when there is an obstacle between the reader / writer and the RF tag. Furthermore, while barcodes and QR codes (registered trademarks) need to be read one by one with a scanner, the RFID code can quickly process a large amount of data at once, so the work efficiency of inventory management and logistics can be greatly improved. Here, the product referred to is the carbon fiber package.

[0036] Here, a label having one code on the second label will be described. However, a plurality of codes may be displayed on one second label, or one code may be displayed for each label, and there may be a plurality of second labels. However, the code on the second label on the outer peripheral surface of the bobbin must be at a position covered by the carbon fiber wound around the outer peripheral surface of the bobbin, whether the number of labels is one or two or more. The position and direction of the barcode, QR code (registered trademark), and RFID code on the second label that appears on the outer peripheral surface of the bobbin after the carbon fiber of the carbon fiber package is used are not particularly limited as long as the code can be read by a reader corresponding to the barcode, QR code (registered trademark), and RFID code.

[0037] In addition, in the present invention, if it is at a predetermined position of the bobbin, instead of the first label and the second label, it may be directly printed on the paper tube by laser printing or the like.

[0038] The barcode, QR code (registered trademark), and RFID code of the second label have a special code in which the identification information of the carbon fiber package that is not on the barcode of the first label is recorded, and the unique information of the carbon fiber package as a product is written so that it can be identified in units of bobbins. The unique information of the carbon fiber package is different from the product information recorded on the barcode of the first label, for example, the variety name of the carbon fiber, the trademark name, the manufacturer of the carbon fiber, the manufacturing date, the lot number (manufacturing lot), the winding weight of the carbon fiber, the winding length of the carbon fiber, etc. By giving information not on the first label as a special code to the second label in this way, it becomes possible to expose the barcode, QR code (registered trademark), and RFID code of the second label on the outer peripheral surface of the bobbin and read the special information with a reader corresponding to each code only after the customer has completely used up the carbon fiber package. By attaching a special code to the second label in this way, it is possible to grasp the consumption information of the carbon fiber package for each customer and prevent the outflow of the carbon fiber package to non-customers.

[0039] Next, the GUID (Globally Unique Identifier), which is a special code assigned to the second label, will be described. It will be abbreviated as GUID hereinafter. A GUID is a globally unique identifier in which a plurality of numbers and alphabets are randomly arranged. Due to the large number of combinations of numbers and alphabets, the probability of having the same numbers and alphabets among multiple identifiers is extremely low, and it is a unique identifier that does not duplicate. Generally, the display format of a GUID is divided into 8 digits - 4 digits - 4 digits - 4 digits - 12 digits. As an example of a GUID display, it consists of a combination of alphabets and numbers such as 36fafa84-91be-4d6b-a916-bc6667677b65, and the number of such combinations is very large. By assigning this special code, the GUID, to each bobbin of the carbon fiber package, the carbon fiber package can be identified on a per-bobbin basis. For the bobbin before winding the carbon fiber, a first label is attached to the inner peripheral surface of the bobbin, and a second label containing the GUID with product-related information not on the first label is attached to the outer peripheral surface of the bobbin. Since the GUID cannot be read unless all the carbon fiber has been unwound from the bobbin, information regarding the usage status of the carbon fiber by the customer can be obtained. Also, since the number of combinations of GUIDs is enormous, not only the carbon fiber packages currently being produced but also those to be produced in the future can be uniquely identified by using the GUID for each bobbin.

[0040] The special code assigned to the second label only needs to be an identifier that can identify each bobbin of the carbon fiber package. Depending on the system environment, a UUID (Universally Unique Identifier), which is a unique identifier similar to the GUID, may be used. It will be abbreviated as UUID hereinafter. The display format of the UUID is 8 digits - 4 digits - 4 digits - 4 digits - 12 digits and consists of a combination of alphabets and numbers, which is the same as that of the GUID.

[0041] Only after unwinding the carbon fibers in the carbon fiber package and reading the barcodes, QR codes (registered trademarks), and RFID codes of the second label that first appear on the outer peripheral surface of the bobbin with a reader suitable for each code can the information of the GUID, which is a special code, be collected simultaneously. After obtaining the product information for each bobbin of carbon fiber including the GUID information in this way, if the product information is sent from the customer to the consumption data verification system of the carbon fiber manufacturer, it can be verified against the location information of the customers who use the carbon fiber and the business system information regarding shipments and the like that the carbon fiber manufacturer has. Even if the carbon fiber package leaks, if the carbon fiber package is discovered, the product information including the GUID can be traced by unwinding all the carbon fibers, and the customer who is the shipping destination can be identified.

[0042] Also, after the customer unwinds all the carbon fibers, it is preferable to return the labeled bobbin to the carbon fiber manufacturer or to discard the paper tube and the labels after the customer peels off both the first label and the second label from the paper tube to prevent malicious third parties from pasting the used labels on the bobbins of another carbon fiber package and selling them as new products.

Example

[0043] Next, the present invention will be described by way of examples, but the present invention is not limited to these examples. The bobbins and carbon fibers used in the examples and comparative examples are as follows. A paper tube is used as the bobbin, and the outer peripheral surface of the paper tube is uniformly embossed. 6 kg of polyacrylonitrile-based carbon fibers are wound around this paper tube to form a carbon fiber package. This carbon fiber package is obtained by winding the carbon fibers around the paper tube so that the ends of the paper tube where no carbon fibers are wound are each 15 mm.

[0044] In addition, the size of the first label on the inner peripheral surface of the paper tube is 65 mm in length and 65 mm in width. A barcode was printed below the first label. The longitudinal direction of the bars and spaces of the barcode is parallel to the axis of the paper tube, that is, the stripe pattern of the barcode is in the circumferential direction, and the barcode is attached so that its position is closer to the end of the paper tube. In addition to the barcode, the manufacturer, trademark name, variety name of carbon fiber, lot number, winding amount and winding length of carbon fiber were printed on the first label so that they could be visually confirmed. <Example 1> A second label with a length of 25 mm and a width of 65 mm, which has a barcode with a GUID as a special code and a lot number for visual confirmation, was attached to the outer peripheral surface of the paper tube so that the center point, which is the intersection of the diagonal lines of the second label, overlaps with the circumference at the midpoint of the length of the paper tube. The size of the barcode on the second label is the same as that of the first label, and the direction is such that the longitudinal direction of the bars and spaces is parallel to the axis of the paper tube, that is, the barcode stripe pattern is in the circumferential direction. After attaching the first label and the second label to the paper tube, the carbon fiber was wound up to form a carbon fiber package. Since the second label with the printed barcode attached to the outer peripheral surface of the paper tube was attached in a place completely covered by the wound carbon fiber, the barcode could not be visually observed in the state where the carbon fiber was wound around the paper tube, and the barcode information of the second label attached to the outer peripheral surface of the paper tube could not be read by a barcode reader. It was not until all the carbon fiber was unwound from the paper tube that the second label attached to the outer peripheral surface of the paper tube was exposed, and the barcode information of the second label could be read by a barcode reader. The read information was automatically transmitted to the consumption data verification system of the carbon fiber manufacturer, and by grasping the product information of the read carbon fiber package and the position information of the read location, the customer could confirm that all the carbon fiber had been consumed from the carbon fiber package. <Example 2> On a second label that is 25 mm in length and 65 mm in width, with a QR code (registered trademark) having a GUID as the special code for the second label and a lot number for visual confirmation printed thereon, the QR code (registered trademark) is placed on the left side and the lot number is placed on the right side when the label is horizontally long. The second label was attached to the outer peripheral surface of the paper tube so that the center point, which is the intersection of the diagonals of the second label, overlaps with the circumference at the midpoint of the length of the paper tube. The size of the QR code (registered trademark) on the second label was a square with a side length of 20 mm. After attaching the first label and the second label to the paper tube, the carbon fiber was wound up to form a carbon fiber package. Since the second label with the QR code (registered trademark) printed thereon attached to the outer peripheral surface of the paper tube was attached in a place completely covered by the wound carbon fiber, the QR code (registered trademark) could not be visually observed in the state where the carbon fiber was wound around the paper tube, and the QR code information of the second label attached to the outer peripheral surface of the paper tube could not be read by a QR code reader. Only after all the carbon fibers were unwound from the paper tube did the second label attached to the outer peripheral surface of the paper tube become exposed, and the QR code information of the second label could be read by a QR code reader. The read information was automatically transmitted to the consumption data verification system of the carbon fiber manufacturer, and by grasping the product information of the read carbon fiber package and the location information of the read location, the customer could confirm that all the carbon fibers had been consumed from the carbon fiber package. <Example 3> It includes an RF tag which is a dedicated tag of RFID having a GUID as a special code for the second label, and a second label with a lot number for visual confirmation printed thereon, 25 mm in length and 65 mm in width, is pasted on the outer peripheral surface of the paper tube so that the center point, which is the intersection of the diagonal lines of the second label, overlaps with the circumference at the midpoint of the length of the paper tube. After pasting the first label and the second label on the paper tube, the above carbon fiber is wound up to form a carbon fiber package. Since the second label with the RF tag pasted on the outer peripheral surface of the paper tube is pasted at a place completely covered by the wound carbon fiber, the RF tag cannot be visually seen when the carbon fiber is wound around the paper tube, and the information of the RF tag of the second label pasted on the outer peripheral surface of the paper tube cannot be read by a reader / writer which is an RFID code reader. Only after all the carbon fibers are unwound from the paper tube, the second label pasted on the outer peripheral surface of the paper tube is exposed, and the information of the RF tag of the second label can be read by the reader / writer. The read information is automatically transmitted to the consumption data verification system of the carbon fiber manufacturer, and by grasping the product information of the read carbon fiber package and the location information of the read location, the customer can confirm that all the carbon fibers have been consumed from the carbon fiber package. <Comparative Example 1> A carbon fiber package same as that in Example 1 was obtained except that the second label was not pasted on the outer peripheral surface of the paper tube. A barcode was printed on the inner peripheral surface of the paper tube, and the barcode could be read at any time without unwinding the carbon fiber from the carbon fiber package. Therefore, it was unknown whether the carbon fiber had been unwound and used by the customer from the carbon fiber package, and the customer could not confirm that all the carbon fibers had been consumed from the carbon fiber package. <Comparative Example 2> A carbon fiber package was obtained in the same manner as in Example 1, except that the second label with the barcode was attached to the outer peripheral surface of the paper tube so that the barcode of the second label could be visually seen at the end of the paper tube where the carbon fiber was not wound around the carbon fiber package. The barcodes printed on the first label on the inner peripheral surface of the paper tube and the second label on the outer peripheral surface of the paper tube were both in positions where they were not covered by the carbon fiber, and the barcodes could be read at any time without unwinding the carbon fiber from the carbon fiber package. Therefore, it was unknown whether the customer had unwound and used the carbon fiber from the carbon fiber package, and it was not possible to confirm that all the carbon fiber had been consumed by the customer from the carbon fiber package.

Claims

1. A carbon fiber package formed by winding carbon fiber onto a bobbin, the carbon fiber package having a first label on the inner peripheral surface of the bobbin and a second label on the outer peripheral surface of the bobbin at a position covered by the wound carbon fiber.

2. The carbon fiber package of claim 1 , wherein the second label comprises at least one of a bar code, a QR code, and an RFID code.

3. 3. The carbon fiber package according to claim 1, wherein the second label is provided with a special code that does not exist on the first label.

4. 4. The carbon fiber package according to claim 3, wherein the special code is a unique ID value consisting of numbers and letters according to a GUID (Globally Unique Identifier).

5. The carbon fiber package according to any one of claims 1 to 4, wherein a bar code is printed on the first label.