Toothbrush
AssigneeSunstar Inc.
InventorsToyokazu Mori, Shinya Sakurai, Hitoshi Matsumoto, Koki Nishimura, Koichi Kubo
Life of this patent
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Abstract
A toothbrush is manufactured by planting sheath/core type composite fibers in a planting base, wherein the sheath/core type composite fiber further comprises: a composite portion consisting of a sheath portion made from polyester resin and 2 to 5 of core portions made from polyamide resin dispersed therein having a predetermined length from a planted base portion; and 2 to 5 of exposed core filament portions obtained by exposing the core portions only having a predetermined length on an end side from the composite portion.
Claims6
A toothbrush comprising by planting sheath/core type composite fibers in a planting base, wherein:
- said sheath/core type composite fiber further comprises:
- a composite portion consisting of a sheath portion made from polyester resin and 2 to 5 of core portions made from polyamide resin dispersed therein having a predetermined length from a planted base portion;
- and
- 2 to 5 of exposed core filament portions obtained by exposing said core portions only having a predetermined length on an end side from the composite portion.
Dependencies are inferred from the claim text.