I/We Claim:
1. A method for manufacturing an intermittently-fixed optical fiber ribbon, the method comprising:
a step of collectively coating a plurality of optical fibers with a coating material by applying an uncured coating material to intrude between the plurality of optical fibers and curing the intruded uncured coating material; and
a step of cutting the coating material positioned between the plurality of optical fibers at a predetermined interval in a longitudinal direction, by using a plurality of rotary blades disposed side by side in a width direction orthogonal to the longitudinal direction, while delivering the collectively-coated optical fibers at a velocity VI in the longitudinal direction,
wherein the velocity VI is greater than a peripheral velocity V2 of the rotary blade.
2. The method for manufacturing an intermittently-fixed optical fiber ribbon according to claim 1,
wherein the velocity VI is at least twice the peripheral velocity V2.
3. The method for manufacturing an intermittently-fixed optical fiber ribbon according to claim 1 or 2,
wherein the rotary blade is formed in a disc shape and has cutout portions recessed radially inward from outer peripheral edges, and
wherein when B is a sum of arc lengths of the outer peripheral edges and N is a sum of virtual arc lengths of the outer peripheral edges in the cutout portion, B > N is
satisfied.
4. The method for manufacturing an intermittently-fixed optical fiber ribbon according to claim 3,
wherein B < 20N is satisfied.