The present invention is directed towards speckled tire treads for tires.
Specifically, the speckled tire tread includes a primary tread compound
that serves as a matrix in which is distributed discrete particles of one
or more secondary tread compounds, at least one of the compounds is a
different color than the other tread compound(s) so as to be visually
distinguishable. For example, the primary tread compound may include
carbon black pigment and be black in color while the secondary tread
compound can include one or more pigments to provide the particles with
non-black color. Thus, the colored particles have a visually
distinguishable color from that of the primary tread composition.
Additionally, at least a portion of the particles may be situated for
viewing on a running surface of the tire tread so that a subject can
visually distinguish between the compounds, and such observed compounds
may provide a different tire performance characteristic(s).