JP5208929B2 - Pearl nucleus, pearl, and method for producing pearl nucleus - Google Patents

Description

  The present invention relates to a pearl nucleus having an electronic label, a pearl, and a method for producing a pearl nucleus.

  In general, in the pearl culture process, a pearl nucleus is inserted into the pearl mother shell, and the pearl mother shell is further grown at the farm. During the growing period of the pearl mother shell, pearls secreted from the pearl mother shell are laminated on the surface of the pearl nucleus, thereby forming a pearl having a beautiful luster.

  By the way, as important factors that determine the commercial value of pearls, appearance quality such as color development and glossiness of the pearl surface and the presence or absence of scratches or distortion occupy a very large specific gravity. In particular, with regard to the color of the pearl surface, in recent years, gold pearls can be produced in addition to general white and yellow pearls by improving the varieties of pearl oyster shells and improving culture techniques.

  Gold pearls are rare and have higher prices than white and yellow pearls, so the surface of ordinary white and yellow pearls is simply colored artificially with gold paint. There are many pearls on the market. At present, these colored pearls are distributed in the market without being disclosed to the purchaser. For this reason, the establishment of a traceability method in pearls is an urgent need nowadays, where the responsibility of producers and sellers are being questioned. In other words, in order to easily distinguish between colored pearls and uncolored pearls and to ensure the reliability of the original pearls, the pearls produced at the aquaculture site are purchased from the aquaculture company through any product processing. The correct merchandise history must be disclosed as to whether the product has arrived.

  On the other hand, in order to prove the product history of pearls described above, the technical problem when trying to achieve pearl traceability is that the surface of the pearl cannot be marked with a barcode or unique mark in the first place. In the point. That is, since the commercial value of the pearl is determined by an appearance factor, marking the surface of the pearl impairs the quality of the pearl surface and lowers the commercial value.

  In recent years, therefore, many techniques have been proposed for proving the distribution history of pearls by means other than marking the rolled pearl surface. For example, Patent Document 1 discloses a technique using a pearl nucleus having an electronic label attached to the surface, and a technique using a pearl nucleus in which an electronic label is accommodated inside a core material divided into two and bonded again. Has been.

  However, the technique of Patent Document 1 has a new problem in the following points. First, the pearl layer laminated on the surface of the pearl nucleus is usually a thin layer of about 0.2 to 0.7 mm of pearl oyster pearl, and a thin layer of about 1.0 to 3.5 mm of white pearl pearl. It is a layer. Therefore, when a pearl nucleus having an electronic label attached to its surface is used for pearl culture, irregularities along the shape of the electronic label are formed on the surface of the rolled pearl, and the commercial value of the pearl is impaired. In addition, the pearl layer of the pearl oyster pearl is thinner than the pearl layer of the white pearl oyster shell pearl, so the electronic sign affixed to the surface of the pearl nucleus can be seen through the pearl layer and the commercial value of the pearl is impaired. It is.

  In addition, when an electronic label is housed inside the core material divided into two parts and the pearl nuclei that have been bonded together are used for pearl culture, during the growing period of the pearl mother shellfish, during the circulation period of the rolled pearls, and purchase During use after reaching the hand of the person, the pearl nuclei may be separated along the dividing plane and the pearl may collapse.

  Furthermore, in the pearl culture process, pearl production is performed multiple times using the same pearl mother shell from the viewpoint of production efficiency. For example, when using a white butterfly shell as a pearl mother shell, a pearl nucleus having a diameter of about 6 to 8 mm is used for the first time according to the size of the shell. Then, after the first pearl is harvested, a second nucleation operation is performed by a replacement method, and a pearl nucleus having a maximum diameter of 13 mm or more may be used. Therefore, in Patent Document 1, in the configuration in which the electronic label is accommodated in the core material divided into two and the pearl nucleus laminated again is used, when the large-diameter pearl nucleus is used, the electronic label is deep in the pearl nucleus. It will be buried in the position, and there is a risk that normal wireless communication will not be performed.

  In addition, when a pearl is used for a necklace, the pearl is usually perforated with a through hole for passing a silk thread. Moreover, when a pearl is used for a ring, a bottomed hole for pin insertion for fixing on the base of the ring is drilled in the pearl. Therefore, in both the configuration in which the electronic label is attached to the surface of the pearl nucleus and the configuration in which the electronic label is accommodated in the vicinity of the center of the pearl nucleus, the electronic label may be destroyed by the drilling operation at the time of pearl jewelry processing. Yes, pearl traceability can only be ensured from pearl farmers to jewelry processors.

In particular, when a pearl nucleus such as that described in Patent Document 1 is used, the electronic label can store, for example, information according to a pearl certificate disclosed in Patent Document 2 so that the pearl itself has a warranty. It is hoped that a replacement will be made. However, in patent document 1, there exists a possibility that an electronic label | marker may be destroyed by the punching operation | work at the time of jewelry processing, and the problem which cannot read information from a pearl after jewelry processing arises.
JP 2000-201565 A JP 2002-82096 A

  An object of the present invention is to provide a pearl nucleus, a pearl, and a method for producing a pearl nucleus that can realize the traceability of the pearl without impairing the apparent quality of the pearl.

  Another object of the present invention is to provide a pearl nucleus, a pearl, and a method for producing a pearl nucleus that can reliably avoid the danger of destroying all electronic signs by jewelry processing.

  Still another object of the present invention is to provide a pearl nucleus, a pearl, and a method for producing a pearl nucleus that can produce high-quality pearls.

  In order to solve the above-described problems, the pearl nucleus according to the present invention has a nucleus substrate and a plurality of electronic labels. The electronic label is embedded near the surface of the nuclear substrate. At least two of the plurality of electronic labels are arranged at positions not facing each other on a straight line passing through the center of the nuclear substrate.

  As described above, since the pearl nucleus according to the present invention has a plurality of electronic labels, the electronic label is destroyed when a non-through hole (bottomed hole) is drilled in the core substrate. It can disperse danger and ensure the traceability of pearls.

  Since the electronic label is embedded in the nuclear substrate, when the pearl culture is performed using the pearl nucleus according to the present invention, there is a problem that irregularities along the shape of the electronic label are generated on the surface of the rolled pearl. Absent. Therefore, high quality pearls can be produced.

  The electronic label is embedded near the surface of the nuclear substrate. That is, since the electronic sign is embedded at a relatively shallow position when viewed from the surface of the nuclear substrate, the risk of communication failure caused by the thick portion of the nuclear substrate is reduced during wireless communication between the electronic label and the tag reader / writer. be able to.

  The pearl nucleus according to the present invention has one of the features in that a device is added to the arrangement of a plurality of electronic signs. That is, since at least two of the plurality of electronic labels are arranged at positions that do not face each other on a straight line passing through the center of the nuclear substrate, when a through-hole passing through the center of the nucleus is drilled in the nuclear substrate, The danger that the two electronic signs will be destroyed can be avoided. Therefore, according to the arrangement of the electronic labels described above, the traceability of the pearl can be reliably and efficiently realized by using at least two electronic labels.

  The pearl nucleus according to the present invention is inserted into the pearl mother shell in the pearl culture process. And during the growing period of the pearl mother shell, pearls are produced by laminating a plurality of nacres on the surface of the pearl nucleus. That is, the pearl according to the present invention has a pearl nucleus and a nacreous layer. The pearl nucleus has a nucleus substrate and a plurality of electronic labels. The electronic label is embedded near the surface of the nuclear substrate. Of the plurality of electronic labels, at least two of the electronic labels are arranged at positions that do not face each other on a straight line passing through the center of the nuclear substrate. The nacreous layer covers the surface of the pearl nucleus. According to this configuration, the pearl according to the present invention can have all the advantages of the pearl nucleus described above. For example, since the pearl nucleus according to the present invention has a plurality of electronic labels, a bottomed hole extending toward the center of the nucleus is perforated when a pearl produced using the pearl nucleus is processed into a ring. Even if done, this bottomed hole can disperse the danger of the electronic label being destroyed.

  Moreover, the electronic label of the pearl nucleus is embedded near the surface of the nuclear substrate. That is, since the electronic sign is embedded in a relatively shallow position of the nuclear substrate, the risk of communication failure caused by the nacreous layer can be reduced during wireless communication between the electronic sign and the tag reader / writer.

  Furthermore, in the pearl nucleus, at least two of the plurality of electronic labels are arranged at positions that do not face each other on a straight line passing through the center of the nucleus substrate, so that when the pearl using this is jeweled on the necklace, Even if a through-hole passing through the center of the nucleus is perforated, it is possible to avoid the risk that the two electronic labels are destroyed simultaneously by this through-hole.

  The method for producing a pearl nucleus according to the present invention is provided with a plurality of installation holes that open to the surface of the nuclear substrate, and at least two of the plurality of installation holes are at positions that do not face each other on a straight line passing through the center of the nuclear substrate. Arranging, placing an electronic label in the installation hole, closing the opening of the installation hole, and embedding the electronic label near the surface of the nuclear substrate.

  According to the manufacturing method described above, a pearl nucleus having all the advantages described above can be manufactured. For example, in the pearl nucleus, at least two of the plurality of electronic labels are arranged at positions that do not face each other on a straight line passing through the center of the nuclear substrate, so that any one of the bottomed hole and the through hole is formed in the nuclear substrate. Even if perforated, the danger of destroying all the electronic labels by these holes can be avoided.

  Moreover, since the installation hole which opens to the surface of a nucleus base | substrate is partially installed in a pearl nucleus, the mechanical strength of a pearl nucleus is securable. Therefore, during the growing period of pearl mother shells, during the circulation period of the rolled up pearls, and during use after reaching the buyer's hand, the pearl nucleus is broken and the inconvenience that the pearls collapse is avoided, It is possible to produce high quality pearls.

  Other objects, configurations and advantages of the present invention will be described in more detail with reference to the accompanying drawings. The accompanying drawings are merely examples.

  As described above, according to the present invention, the following effects can be obtained.

  (1) It is possible to provide a pearl nucleus, a pearl, and a method for producing a pearl nucleus that can realize the traceability of the pearl without impairing the appearance quality of the pearl.

  (2) It is possible to provide a pearl nucleus, a pearl, and a method for producing a pearl nucleus that can surely avoid the danger that all electronic signs are destroyed by jewelry processing.

  (3) It is possible to provide a pearl nucleus, a pearl, and a method for producing a pearl nucleus capable of producing high-quality pearls.

It is a perspective view of the pearl nucleus which concerns on one Embodiment of this invention. Example 1 FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. It is a perspective view of the pearl which concerns on one Embodiment of this invention. (Example 2) FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is sectional drawing which showed another structure about embodiment shown in FIG. (Example 3) It is a perspective view which shows 1 process of the manufacturing method of the pearl nucleus which concerns on one Embodiment of this invention. Example 4 FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. FIG. 8 is a perspective view showing a step after the step shown in FIGS. 6 and 7. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. FIG. 9 is a cross-sectional view showing a step that follows the step shown in FIGS. 7 and 8. It is sectional drawing which abbreviate | omits one part and shows about the usage condition of the pearl which concerns on another embodiment of this invention. (Example 5) It is sectional drawing which abbreviate | omits one part and shows the usage condition of the pearl which concerns on another embodiment of this invention. (Example 6) It is sectional drawing of the pearl nucleus which concerns on another embodiment of this invention. (Example 7) It is sectional drawing of the pearl nucleus which concerns on another embodiment of this invention. (Example 8) It is sectional drawing of the pearl nucleus which concerns on another embodiment of this invention. Example 9

Explanation of symbols

10 pearl nucleus 100 nucleus substrate 101 surface of nucleus substrate 11, 12, 13 first, second, and third electronic labels (RF tags)
14, 15, 16 First, second, and third installation holes 20 Filler 30 Nacreous layer c100 Center of core d100 Diameter of core X, Y, Z Straight line passing through center of core

<Example 1>
The pearl nucleus shown in FIGS. 1 and 2 is nucleated inside the mother pearl shell in a general pearl culture process, thereby fixing the pearl luster secreted from the mother pearl shell to the surface, It is used as a core material for forming the. Hereinafter, a specific structure of the pearl nucleus will be described with reference to FIGS. 1 and 2.

  The pearl nucleus has a nucleus substrate 100. The core substrate 100 is a molded product mainly composed of calcium carbonate. Usually, a shell bead obtained by cutting and polishing a thick shell such as a shellfish is used for the core substrate 100.

  The nuclear substrate 100 shown in FIGS. 1 and 2 is used when producing a substantially spherical pearl, and has a substantially spherical shape. That is, the shape of the core substrate 100 can be set as appropriate based on the shape of the pearl to be produced, and is not necessarily limited to a substantially spherical shape. For example, when producing pearls such as an elliptical shape, a teardrop shape, and a polyhedral shape, the core substrate 100 having each shape is used.

  Further, the diameter dimension d100 of the core substrate 100 can be appropriately set based on the diameter dimension of the pearl to be produced. For example, when producing a pearl having a diameter dimension of about 13 to 15 mm, the diameter dimension d100 of the core substrate 100 is about 6 to 13 mm.

  Furthermore, the diameter dimension d100 of the nuclear substrate 100 is determined by the size of the nacreous shell into which the nuclear substrate 100 is inserted. For example, when a white butterfly shell is used as a pearl shell, a nuclear substrate 100 having a diameter d100 of about 6 to 8 mm according to the size of the shell is used in the first nucleation operation. On the other hand, in the nuclear insertion surgery for the second and subsequent periods, a nuclear substrate 100 having a diameter dimension d100 of about 8 to 13 mm is widely used, and a nuclear substrate 100 having a diameter dimension d100 of 13 mm or more can also be used.

  The pearl nucleus has at least a first electronic label 11 and a second electronic label 12. Specifically, RF tags can be used for the first and second electronic labels 11 and 12.

  In this specification, an RF tag is an electronic label used for RFID (Radio Frequency IDentification), and can transmit and receive ID information recorded inside the tag by short-range wireless communication using an electromagnetic field or radio wave. It means an electronic label that can Hereinafter, for convenience of explanation, the first and second electronic labels 11 and 12 will be described as being unified with the first and second RF tags 11 and 12.

  Further, as the first and second RF tags 11 and 12, either an active tag or a passive tag can be used, and a passive tag is more preferably used. A passive tag has a built-in rectifier circuit inside the tag, rectifies the radio wave received from the tag reader / writer, converts it to direct current, operates the electronic circuit with this direct current power, and processes it with this direct current power in the electronic circuit. This information can be transmitted to the tag reader / writer. Unlike the active tag, the passive tag can be reduced in size by the amount that does not require a built-in battery. Therefore, the pearl nucleus can be reduced in size and weight by using the passive tag for the first and second RF tags 11 and 12.

  Further, the first and second RF tags 11 and 12 preferably have an overwritable area and an overwritable area in the memory area of the electronic circuit. In the non-overwriteable area, for example, the pearl production information such as the name of the farmer, the production place, the production year, and the name of the nucleation operator is stored in an unmodifiable manner to prove the quality of the pearl derived from the production process. In the overwritable area, the distribution history information of cultured pearls is updated and recorded every time it is moved and processed, so that coloring acts in the distribution route after the production process are suppressed and correct product information is shown to the purchaser. Can do.

  The first and second RF tags 11 and 12 are embedded in the vicinity of the surface 101 of the nuclear substrate 100. The pearl nucleus 10 shown in FIGS. 1 and 2 has a first installation hole 14 and a second installation hole 15. The first and second installation holes 14 and 15 are formed in the surface 101 of the nuclear substrate 100 with a depth corresponding to the thickness of the RF tag to be used. The first RF tag 11 is installed inside the first installation hole 14, and the second RF tag 12 is installed inside the second installation hole 15.

  Each of the first and second installation holes 14 and 15 has a bottom surface and an opening surface facing the bottom surface. The first and second installation holes 14 and 15 follow the planar shape of the first and second RF tags 11 and 12 in advance from the viewpoint of installation work efficiency of the first and second RF tags 11 and 12. It is preferable that it is formed so as to be fitted. Since each of the first and second RF tags 11 and 12 shown in FIGS. 1 and 2 has a square shape of about 0.7 to 2.0 mm square, the first and second installation holes 14 and 15 are provided. Each is preferably formed in a square shape of about 0.7 to 2.0 mm square. According to this structure, the first and second RF tags 11 and 12 can be stably fitted to the bottom surfaces of the first and second installation holes 14 and 15.

  It is desirable that the first and second RF tags 11 and 12 are waterproofed. This is because the body of the pearl oyster shell is a body fluid containing salt that is almost isotonic with seawater. After being placed in the pearl nucleus by intubation surgery, the first and second RF tags 11 and 12 are connected to the mother pearl. This is to prevent damage from moisture and salt in the shell fluid. Moreover, it is preferable to use an epoxy-based resin for waterproofing the first and second RF tags 11 and 12 from the viewpoint of the presence or absence of harmful components in the pearl shell.

  Since the first and second RF tags 11 and 12 are embedded in the first and second installation holes 14 and 15, it is preferable to use a thin plate (flat chip). According to this structure, since the depths of the first and second installation holes 14 and 15 can be reduced, cracking and chipping of the nuclear substrate 100 can be avoided. Specifically, it is preferable to use an IC chip constituted by an integrated circuit for the first and second electronic signs 11 and 12.

  Furthermore, the internal space and the opening surface of the first and second installation holes 14 and 15 are closed by the filler 20, and the first and second RF tags 11 and 12 are connected to the first and second RF tags 11 and 12. 2 are fixed inside the installation holes 14 and 15. The filler 20 is preferably a putty (epoxy putty) mainly composed of an epoxy resin from the viewpoints of waterproofness, water pressure resistance, and the presence or absence of harmful components with respect to the pearl shell. The surface of the filler 20 is preferably shaped along the shape of the surface 101 of the core substrate 100.

The pearl nucleus 10 shown in FIGS. 1 and 2 has one of the features in that the arrangement of the first and second RF tags 11 and 12 is devised. That is, the first RF tag 11 is on a straight line X (X axis) passing through the center c100 of the nuclear substrate 100, and the second RF tag 12 is on a straight line Y (Y axis) intersecting the X axis at the center c100. When arranged, the second RF tag 12 is arranged on the Y axis that is a position not facing the first RF tag 11 in the straight line X passing through the center c100.
The crossing angle θ between the X axis and the Y axis is preferably larger than 0 degree and smaller than 180 degrees. A region 40 indicated by an alternate long and short dash line assumes a hole drilled along the X axis passing through the center c100 of the nuclear substrate 100. The second RF tag 12 is disposed on the Y axis that is a position that does not face the first RF tag 11 in the hole region 40 drilled along the X axis.

  When the nuclear substrate 100 is substantially spherical, the straight line X passing through the center c100 matches the diameter of the nuclear substrate 100. Further, when the nuclear substrate 100 is substantially spherical, the center c100 of the nuclear substrate 100 coincides with the center of gravity of the nuclear substrate 100. On the other hand, when the nuclear substrate 100 has a shape other than a substantially spherical shape, for example, an elliptical shape, a teardrop shape, or a rectangular shape, it can be assumed as the center of gravity of the nuclear substrate 100 and the center c100 of the nuclear substrate 100, for example.

  As described with reference to FIGS. 1 and 2, since the pearl nucleus 10 has the first and second RF tags 11 and 12, the nucleus substrate 100 temporarily extends toward the center c <b> 100. Even if the hole region 40 is drilled and the first RF tag 11 is destroyed, the second RF tag 12 can continue to function without being destroyed.

  Since the first and second RF tags 11 and 12 are embedded in the nuclear substrate 100, the surface of the rolled pearl when the pearl culture is performed using the pearl nucleus 10 shown in FIGS. In addition, there is no problem that unevenness along the shapes of the first and second RF tags 11 and 12 occurs. Therefore, high quality cultured pearls can be produced.

  The first and second RF tags 11 and 12 are embedded in the vicinity of the surface 101 of the nuclear substrate 100 and at a relatively shallow position from the surface 101. Therefore, at the time of wireless communication between the first and second RF tags 11 and 12 and the tag reader / writer, the risk of occurrence of wireless communication failure caused by the thick portion of the core substrate 100 or the filler 20 is reduced, and the pearls are reduced. Can be reliably achieved.

  The first and second RF tags 11 and 12 are respectively installed in the first and second installation holes 14 and 15. The depth of the first and second installation holes 14 and 15 can be reduced by using a thin plate (flat chip) electronic label for the first and second RF tags 11 and 12. That is, by using a thin-plate electronic label for the first and second RF tags 11 and 12, the first and second installation holes 14 and 15 can be formed at low cost. In particular, since this type of nuclear substrate 100 has the property of being easily broken, by reducing the depth of the first and second installation holes 14 and 15, cracking and chipping of the nuclear substrate 100 can be avoided. The mechanical strength of the core substrate 100 can be ensured.

  In contrast, when an RF module having a three-dimensional shape is used for the first and second RF tags 11 and 12, the first and second installation holes 14 and 15 are deepened by the height of the RF module. There is a need to form. Therefore, the cost for forming the first and second installation holes 14 and 15 is high. Furthermore, since the first and second installation holes 14 and 15 are formed deep in the nuclear substrate 100, the nuclear substrate 100 is frequently cracked and chipped, and the mechanical strength of the nuclear substrate 100 is reduced.

  The pearl nucleus 10 shown in FIGS. 1 and 2 is characterized in that the arrangement of the first and second RF tags 11 and 12 is devised. That is, the first and second RF tags 11 and 12 are arranged on the straight line X passing through the center c100 of the nuclear substrate 100 and at positions not facing each other in the hole region 40 extending along the straight line X. Even if a through hole is drilled in the hole region 40 and the first RF tag 11 is destroyed by the through hole, the second RF tag 12 can continue to function without being destroyed. Therefore, it avoids the danger that the first and second RF tags 11 and 12 are all destroyed, and the traceability of the pearl is reliably and efficiently realized by using at least two RF tags. be able to.

<Examples 2 and 3>
The pearl nucleus described with reference to FIG. 1 and FIG. 2 is inserted into the pearl mother shell in a known pearl culture process. Then, during the growing period of the pearl mother shell, cultured pearls are produced by laminating nacre on the surface 101 of the core substrate 100. Next, pearls produced using the pearl nucleus shown in FIGS. 1 and 2 will be described with reference to FIGS.

  Referring to FIGS. 3 and 4, the pearl has a pearl nucleus 10. The pearl nucleus 10 has a nucleus substrate 100. The core substrate 100 is preferably a molded body mainly composed of calcium carbonate having affinity with the pearl luster secreted from the mother of pearl. The first and second RF tags 11 and 12 are embedded in the vicinity of the surface 101 of the nuclear substrate 100. The first and second RF tags 11 and 12 are arranged at positions that do not face each other on a straight line X passing through the center c100 of the nuclear substrate 100.

  The pearl has a pearl layer 30, which covers the surface 101 of the pearl nucleus 10. In a general cultured pearl production process, a pearl nucleus 10 such as a shell bead is inserted into a pearl mother shell such as a white butterfly shell, and the pearl mother shell is further grown in a farm. In the pearl layer 30, aragonite crystals formed from calcium carbonate and pearl conchiolin protein secreted from the pearl oyster shell are laminated on the surface 101 of the pearl nucleus 10 during the growing period of the pearl oyster shell. Thus, a pearl having the pearl layer 30 on the surface 101 of the pearl nucleus 10 is obtained.

  The thickness dimension d30 of the pearl layer 30 is determined by how long the pearl nucleus 10 has been grown after being inserted into the shell of the pearl mother. Specifically, in the pearl culture process when white pearl oysters are used as pearl mother shells, first, larvae of white pearl oysters were grown for about 18 months with artificial seedlings, and the shells grew to a diameter of about 15 cm. Sometimes a first tuberculosis operation is performed on this shellfish. The pearl nucleus 10 used at this time is a pearl nucleus 10 having a diameter dimension d100 of about 6 to 8 mm according to the size of the shellfish. After the first tuberculosis operation, pearl oysters are cultivated at the farm, and the first pearl harvest is performed 24 months after the first tuberculosis operation. The pearl harvested at this time is the pearl shown in FIG. 4, and a pearl layer 30 having a thickness d30 of about 1.0 to 3.5 mm is formed around the pearl nucleus 10 having a diameter of about 6 mm. The overall pearl size is about 8-15 mm in diameter.

  The pearl mother shell that produced high-quality pearls by the first pearl harvest is selected, and the second nucleation operation is performed again. The pearl nucleus 10 used for the insertion is a pearl nucleus 10 having a diameter d100 of about 8 to 13 mm according to the size of the harvested pearl. After the second tuberculosis operation, it is grown on the farm and pearl harvest is performed 12 to 20 months after the second tuberculosis operation. The pearl harvested at this time is the pearl shown in FIG. 5, and a pearl layer 30 having a thickness dimension d30 of about 1.0 to 2.0 mm is formed around the pearl nucleus 10 having a diameter of about 8 to 13 mm. The overall pearl size is about 10 to 17 mm in diameter. After the second pearl harvest, the pearl nucleus 10 having a diameter d100 equivalent to the size of the pearl harvested in the same manner can be used in consideration of the health condition of the pearl mother shell.

  Since the pearl described with reference to FIGS. 3 to 5 includes the pearl nucleus 10 according to the present invention, it can have all of the advantages described with reference to FIGS. For example, since the pearl nucleus 10 has the first and second RF tags 11 and 12, when pearls produced using the pearl nucleus 10 are jeweled into a ring, the pearl nucleus 10 faces the center c100 of the nucleus substrate 100. Even if a bottomed hole extending in this manner is drilled, the danger of the first and second RF tags 11 and 12 being destroyed can be dispersed by the bottomed hole. Therefore, it is possible to prove the product history as to what kind of product processing the pearl rolled up from the cultivating land reaches the purchaser from the pearl cultivator, thereby ensuring the reliability of the cultured pearl.

  Moreover, since the 1st and 2nd RF tags 11 and 12 are embed | buried near the surface 101 of the nucleus base | substrate 100, when pearl culture is performed using the pearl nucleus 10, the surface of the rolled-up pearl There is no problem that unevenness along the shape of the first and second RF tags 11 and 12 occurs in 101. Therefore, high quality cultured pearls can be produced.

  Further, since the first and second RF tags 11 and 12 are embedded in the first and second installation holes 14 and 15 opened in the surface 101 of the nuclear substrate 100, the mechanical strength of the nuclear substrate 100 is increased. Can be secured. Therefore, there is a fear that the pearl nucleus 10 may be separated during the growing period of the pearl mother shell, during the circulation period of the cultured cultured pearls, and during use after reaching the purchaser, and the pearls may collapse. High quality cultured pearls can be produced.

  Further, since the first and second RF tags 11 and 12 are embedded at a relatively shallow position on the surface 101 of the nuclear substrate 100, the first and second RF tags 11 and 12, the tag reader / writer, During the wireless communication, the risk of communication failure caused by the nacre 30 can be reduced. Therefore, the product history of the pearls rolled up in the aquaculture land from the pearl farmer to the buyer through the product processing is proved, and artificially colored gold pearls and uncolored natural gold color The identification with a pearl is made easy and the reliability with respect to a cultured pearl can be ensured.

  Further, in the pearl nucleus 10, the first and second RF tags 11, 12 are arranged at positions not facing each other on a straight line X passing through the center c100 of the nucleus substrate 100, so that the pearl using this is used as a necklace. Even when a through-hole passing through the center c100 of the nuclear substrate 100 is drilled in the case of jewelry processing, the risk of destroying all the first and second RF tags 11 and 12 by the through-hole is avoided. Can do. Therefore, the product history of the pearls rolled up in the aquaculture land from the pearl farmer to the buyer through the product processing is proved, and artificially colored gold pearls and uncolored natural gold color The identification with a pearl is made easy and the reliability with respect to a cultured pearl can be ensured.

<Example 4>
The process shown in FIGS. 6 and 7 is a diagram showing a process of opening the first and second installation holes 14 and 15 in the pearl nucleus 10, and the core substrate 100 has the first and first openings opened on the surface 101. 2 installation holes 14 and 15 are installed. The 1st and 2nd installation holes 14 and 15 are arrange | positioned in the position which does not face on the straight line X which passes along the center c100 of the nucleus base | substrate 100. FIG. Specifically, the intersection angle θ between the X axis indicating the center line of the first installation hole 14 and the Y axis indicating the center line of the second installation hole 14 is preferably larger than 0 degree and smaller than 180 degrees. . A region 40 indicated by an alternate long and short dash line assumes a hole drilled along the X axis passing through the center c100 of the nuclear substrate 100. The first and second installation holes 14 and 15 are at least bottom surface shapes (0.7 to 2.... Of the first and second installation holes 14 and 15 with respect to the hole region 40 drilled along the X axis. It is arranged at a position that does not face in the hole region 40 with a margin of about 0 mm square. The first and second installation holes 14 and 15 are engraved holes generally called counterbore, and preferably have a bottom surface having a planar shape similar to that of the first and second RF tags 11 and 12.

  The process shown in FIGS. 8 and 9 shows a process of installing the first and second RF tags 11 and 12 in the first and second installation holes 14 and 15. Specifically, after the steps shown in FIGS. 6 and 7, the first and second RF tags 11 and 12 are first coated with a filler 20 mainly composed of an epoxy resin in advance, and the first coated first. The second RF tags 11 and 12 are fitted into the first and second installation holes 14 and 15. The first and second RF tags 11, 12 are temporarily attached to the bottom surfaces of the first and second installation holes 14, 15 by the filler 20 at the same time as they are fitted into the first and second installation holes 14, 15. Stopped.

  The process shown in FIG. 10 closes the inside of the first and second installation holes 14 and 15 and the opening surface, and places the first and second RF tags 11 and 12 near the surface 101 of the nuclear substrate 100. The process of embedding is shown. Specifically, after the process shown in FIGS. 8 and 9, the surface of the pearl nucleus 10 is further filled with a filler 20 so as to become familiar with the surface 101 around the first and second installation holes 14, 15. Smoothing is performed by removing excess filler 20 so that 101 does not have unevenness.

  After the process shown in FIG. 10, the pearl nucleus 10 is inserted into the inside of the pearl oyster shell, and the pearl shown in FIGS.

  According to the method for manufacturing the pearl nucleus 10 described with reference to FIGS. 6 to 10, the pearl nucleus 10 having all the advantages described with reference to FIGS. 1 to 5 can be manufactured. For example, in the pearl nucleus 10, the first and second installation holes 14 and 15 that open to the surface 101 are partially installed in the nucleus substrate 100, so that the mechanical strength of the pearl nucleus 10 can be ensured. it can. Therefore, it avoids the inconvenience that the pearl core 10 is broken during the growing period of the pearl mother shell, during the circulation period of the cultured pearls that have been rolled up, and even during use after reaching the buyer's hand, causing the pearls to collapse. Therefore, it is possible to produce high-quality cultured pearls.

  In the pearl nucleus 10, the first and second RF tags 11 and 12 are arranged at positions that do not face each other on the straight line X passing through the center c100 of the nucleus substrate 100, so that a through hole or Even if any hole 40 of the bottomed hole is drilled, it is possible to avoid a risk that all the first and second RF tags 11 and 12 are destroyed by these holes 40.

<Examples 5 and 6>
A mode in which the bottomed hole and the through hole are drilled in the pearl and the pearl nucleus 10 forming the pearl will be described with reference to FIGS. 11 and 12.

  FIG. 11 shows an embodiment in the case where the pearl 1 is jeweled into a ring. When used for a ring, the pearl 1 is perforated with a bottomed hole 41 for inserting a pin 51 for fixing on the pedestal 5. As shown in FIG. 11, in the pearl 1 according to one embodiment of the present invention, the first and second RF tags 11 and 12 are arranged at positions that do not face each other on a straight line passing through the center c100 of the nuclear substrate 100. Therefore, even if the second RF tag 12 is destroyed by the bottomed hole 41, the first RF tag 11 remains without being destroyed.

  FIG. 12 shows an embodiment in the case where the pearl 1 is jeweled into a necklace. When the pearl 1 is used for a necklace, a through hole 40 for passing the silk thread 6 is drilled. As shown in FIG. 12, in the pearl 1 according to an embodiment of the present invention, the first and second RF tags 11 and 12 are arranged at positions that do not face each other on a straight line passing through the center c100 of the nuclear substrate 100. Therefore, even if the second RF tag 12 is destroyed by the through hole 40, the first RF tag 11 remains without being destroyed.

  As described with reference to FIGS. 11 and 12, regardless of whether the through hole 40 or the bottomed hole 41 is drilled in the core substrate 100, all the first and Since the danger that the second RF tags 11 and 12 may be destroyed can be avoided, it is possible to ensure the traceability of the pearl after the jewelry processing. Accordingly, the product processing history and distribution history information of the pearl can be disclosed to the purchaser.

<Example 7>
As shown in FIG. 13, the shape of the core substrate 100 of the pearl nucleus 10 can be set as appropriate assuming the shape of the pearl to be produced. Since the nuclear substrate 100 shown in FIG. 13 is used when producing an elliptical pearl, it has an elliptical shape. Also in the pearl nucleus 10 shown in FIG. 13, the first and second RF tags 11 and 12 are arranged at positions where they do not face on the long axis X or the short axis Y passing through the center (center of gravity) c100 of the nuclear substrate 100. Yes.

  Also in the embodiment shown in FIG. 13, the first and second RF tags 11 and 12 are arranged at positions not facing each other on the long axis X or the short axis Y that passes through the center c100 of the nuclear substrate 100. Even if the hole 40 is drilled in the base body 100, it is possible to avoid the risk that the first and second RF tags 11 and 12 are destroyed by the hole 40.

<Examples 8 and 9>
In the pearl shown in FIG. 14, the pearl nucleus 10 has first to third RF tags 11 to 13. The first and third RF tags 11 and 13 are arranged at positions facing each other on a straight line X passing through the center c100 of the nuclear substrate 100. On the other hand, the second RF tag 12 is arranged on the Y axis orthogonal to the X axis, and is in a position not facing the straight line X with respect to any of the first and third RF tags 11 and 13. Has been placed.

  According to the embodiment shown in FIG. 14, the second RF tag 12 is arranged on the straight line X so as not to face both the first and third RF tags 11 and 13. Even if the hole 40 along the X-axis is drilled in the substrate 100, the hole 40 is not broken. Therefore, it is possible to reliably avoid the possibility that all the RF tags are destroyed by the jewelry processing.

  In the pearl shown in FIG. 15, the pearl nucleus 10 has first to third RF tags 11 to 13. The first RF tag 11 is arranged on the X axis, the second RF tag 12 is arranged on the Y axis, the first RF tag 11 is arranged on the Z axis, and the crossing angles of the X to Z axes respectively. θ is 120 degrees. That is, the first to third RF tags 11 to 13 are arranged at positions that do not face each other on the straight lines X to Z (X to Z axes) passing through the center c100 of the nuclear substrate 100.

  According to the embodiment shown in FIG. 15, the first to third RF tags 11 to 13 are arranged at positions that do not face each other on a straight line passing through the center c100, and thus penetrate the nuclear substrate 100 along the X axis. Even if the hole 40 is drilled, the second and third RF tags 12 and 13 are not broken by the hole 40. Therefore, compared with the embodiment of FIG. 14, the possibility that all RF tags are destroyed by pearl jewelry processing can be avoided more reliably.

  Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is.

Claims (4)

A pearl nucleus comprising a nuclear substrate and a plurality of electronic labels,
The nuclear substrate is spherical,
The electronic label is embedded near the surface of the nuclear substrate,
At least two of the plurality of the electronic labels are arranged at positions not facing each other on a straight line passing through the center of the nuclear substrate,
The straight line is the diameter of the nuclear substrate;
The center is the center of gravity of the nuclear substrate;
The at least two electronic labels extend from the other of the electronic labels to the center of the nuclear substrate when a perpendicular extending from one of the electronic labels to the center of the nuclear substrate overlaps the straight line when viewed in a cross section of the nuclear substrate. Embedded in a position where the perpendicular intersects the straight line and does not cover the hole region drilled along the straight line ,
Furthermore, one of the at least two electronic labels is disposed on a hemispherical portion opposite to the spherical hemispherical portion of the nuclear substrate on which the other of the electronic labels is disposed.
Pearl nucleus. A pearl comprising a pearl nucleus and a pearl layer,
The pearl nucleus has the nucleus substrate and the plurality of electronic labels,
The nuclear substrate is spherical,
The electronic label is embedded near the surface of the nuclear substrate,
At least two of the plurality of the electronic labels are arranged at positions not facing each other on a straight line passing through the center of the nuclear substrate,
The straight line is the diameter of the nuclear substrate;
The center is the center of gravity of the nuclear substrate;
The at least two electronic labels extend from the other of the electronic labels to the center of the nuclear substrate when a perpendicular extending from one of the electronic labels to the center of the nuclear substrate overlaps the straight line when viewed in a cross section of the nuclear substrate. Embedded in a position where the perpendicular intersects the straight line and does not cover the hole region drilled along the straight line ,
Furthermore, one of the at least two electronic labels is disposed on a hemispherical portion opposite to the spherical hemispherical portion of the nuclear substrate on which the other of the electronic labels is disposed ,
The nacreous layer covers the surface of the pearl nucleus,
pearl. A pearl according to claim 2,
A hole is formed along a straight line passing through the center of the core substrate.
pearl. A method for producing a pearl nucleus comprising a nuclear substrate and a plurality of electronic labels,
The nuclear substrate is spherical,
The electronic label is embedded near the surface of the nuclear substrate,
At least two of the plurality of the electronic labels are arranged at positions not facing each other on a straight line passing through the center of the nuclear substrate,
The straight line is the diameter of the nuclear substrate;
The center is the center of gravity of the nuclear substrate;
The at least two electronic labels extend from the other of the electronic labels to the center of the nuclear substrate when a perpendicular extending from one of the electronic labels to the center of the nuclear substrate overlaps the straight line when viewed in a cross section of the nuclear substrate. Embedded in a position where the perpendicular intersects the straight line and does not cover the hole region drilled along the straight line,
Furthermore, one of the at least two electronic labels is disposed on a hemispherical portion opposite to the spherical hemispherical portion of the nuclear substrate on which the other of the electronic labels is disposed,
In the manufacturing method, a plurality of installation holes that open to the surface of the nuclear substrate are provided, and at least two of the plurality of installation holes are positions that do not face each other on a straight line passing through the center of the nuclear substrate. When a perpendicular extending from one of the installation holes to the center of the nuclear substrate overlaps with the straight line when viewed in a cross section of the nuclear substrate, a perpendicular extending from the other of the installation holes to the center of the nuclear substrate intersects the straight line. The nuclear substrate is disposed at a position that does not cover a hole region that is perforated along the straight line, and one of the at least two installation holes is disposed on the other of the installation holes. Arranged in a hemispherical part opposite to the spherical hemispherical part of
Installing the electronic sign in the installation hole;
Close the opening of the installation hole and embed the electronic label near the surface of the nuclear substrate.
A method for producing a pearl nucleus comprising a process.

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