method for producing, recognizing, identifying, reading and tracing a seal or label; seal or tag and apparatus for recognizing, identifying, reading and traceability of said seal or tag

摘要

A method for producing, recognizing, identifying, reading and tracing a seal or label (4) is described, comprising the steps of: preparing a mold (64) for said seal or label (4); injecting into a molding chamber (68) of the mold (64) a first material constituting a matrix (72) of the seal or label (4); injecting into the molding chamber (68) of the mold (4) a second tracking material (76), which is randomly mixed into the matrix (72), creating a pattern within the matrix (72), such a pattern defining a marking ( 16) of the seal or label (4).