US 12,065,766 B2
Trilobal yarns for application on dental floss, dental floss including the same and use of trilobal yarns in the manufacture of dental floss
Gustavo De La Rue, Americana (BR)
Assigned to PROFIL INDUSTRIA E COMERCIO DE FIOS LTDA, Nova Odessa (BR)
Filed by PROFIL INDUSTRIA E COMERCIO DE FIOS LTDA, Nova Odessa (BR)
Filed on Dec. 23, 2021, as Appl. No. 17/561,250.
Application 17/561,250 is a continuation of application No. 16/451,840, filed on Jun. 25, 2019, abandoned.
Claims priority of application No. 1020180131133 (BR), filed on Jun. 26, 2018.
Prior Publication US 2022/0186407 A1, Jun. 16, 2022
Int. Cl. D02G 3/34 (2006.01); A61C 15/04 (2006.01); D01D 5/08 (2006.01); D02G 3/02 (2006.01); D02G 3/44 (2006.01)
CPC D02G 3/34 (2013.01) [A61C 15/041 (2013.01); D01D 5/08 (2013.01); D02G 3/02 (2013.01); D02G 3/448 (2013.01); D10B 2321/022 (2013.01); D10B 2509/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A yarn comprising a plurality of filaments entangled with one another, each filament having a hollow trilobal cross-section and a single centrally disposed opening, and each filament comprising polypropylene and a masterbatch comprising a polyolefin resin, wherein the yarn is twisted with a twist level between 65 and 160 twists per meter, wherein the yarn has a linear density of 400 dtex to 1200 dtex.