| abstract |
This information indicator (1) used in a tire production control label comprises a film-like substrate (2) made of a heat-resistant resin, on one side of which is formed a surface (20) of information indication where recognizable information is printed (6). A pressure sensitive adhesive layer (4) is formed, together with a primer layer (3), on the other side of the substrate. The information indicating surface has a surface roughness of which the arithmetic average deviation of the profile, determined according to the Japanese standard JIS B 0601, is between 0.5 and 5 mum and bears an indication like a bar code. . This indication cannot become blurred or be erased, even at the high temperatures and high pressures sustained during vulcanization. |