| CPC A61C 15/042 (2013.01) | 8 Claims |
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1. Dental floss comprising:
a floss part that is formed by twisting a plurality of filaments together but not tying up the filaments; and
a plurality of tied-up parts provided continuously with the floss part, and are formed by tying up the plurality of the filaments,
wherein each of the plurality of tied-up parts are formed in such a manner that the plurality of filaments are covered with a contour part in a cross section of the plurality of filaments,
wherein the floss part and the plurality of tied-up parts are constituted of a same continuous raw yarn,
wherein the plurality of the filaments are twisted together inside each of the plurality of tied-up parts,
wherein each contour part is continuous around an outer circumference of a cross section of each of the plurality of tied-up parts,
wherein the plurality of filaments disposed inside the contour parts are more dense than the plurality of filaments in the floss part, and
wherein the plurality of filaments are tied up by the contour part of each of the plurality of tied-up parts.
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