The separable optical fiber ribbon in accordance with the present invention is
an optical fiber ribbon in which a plurality of colored optical fibers arranged
in parallel are coated with a collective coating resin so as to be integrated into
an optical fiber ribbon, and a plurality of such optical fiber ribbons are arranged
in parallel and coated with a binding resin; wherein the binding resin is obtained
by curing a UV-curable resin composition satisfying the condition represented by
the following expression (1):
where W is the compounding ratio [wt %] of a urethane acrylate compound contained
in the resin composition, N is the number of urethane groups in one molecule of
the urethane acrylate compound, and MW is the average molecular weight
of the urethane acrylate compound.
