| abstract |
An IC tag protective material is applied to a pearl nucleus embedded with an IC tag to prevent seawater from contacting the IC tag and destroying the IC tag. [Solution] In the cultured pearl 1 in which the pearl nucleus 2 is inserted into the body of the pearl shell and cultured in the sea, the IC tag 3 is embedded in the pearl nucleus 2, and the IC tag protective material 5 is applied to the outer periphery of the pearl nucleus 2, thereby The IC tag 3 can be protected from seawater or fresh water for 1 to 3 years until the nacreous layer 4 is formed in the nucleus 2. Moreover, since the IC tag 3 is embedded in the pearl nucleus 2 and then the pearl layer 4 is formed on the outer periphery of the pearl nucleus 2, it is not necessary to mold the IC tag 3 after the cultured pearl 1 is completed. [Selection] Figure 1 |