公开(公告)号：US20240376665A1

公开(公告)日：2024-11-14

申请号：US18780200

申请日：2024-07-22

Applicant: KANEKA CORPORATION

Inventor： Takaaki Kobashi ,  Nobutaka Taoka ,  Takeshi Tanaka

IPC: D06M15/507 ,  D01D5/06 ,  D01D11/06 ,  D01F1/04 ,  D01F6/18 ,  D06M13/463 ,  D06M13/467 ,  D06M15/564 ,  D06M15/643 ,  D06M15/65

Abstract: A water-repellent polyacrylonitrile-based synthetic hair fiber contains a polyacrylonitrile-based synthetic fiber (A) and a water repellent (B) attached to the polyacrylonitrile-based synthetic fiber (A). The water repellent (B) does not have a fluoro group and contains at least one selected from the group consisting of a dendrimer-based water repellent (B-1), an alkyl urethane-based water repellent (B-2), and condensation reaction type polydimethylsiloxane (B-3). The dendrimer-based water repellent (B-1) has an ester and/or urethane bond. The alkyl urethane-based water repellent (B-2) has a long-chain hydrocarbon side chain and is non-dendrimer-based. The condensation reaction type polydimethylsiloxane (B-3) has, at both terminals, a hydroxyl group, an organic group having a hydroxyl group, or an organic group capable of generating a hydroxyl group. The amount of the water repellent (B) attached is between 0.05 mass % and 1.0 mass % both inclusive with respect to a total mass of the polyacrylonitrile-based synthetic fiber (A).

公开(公告)号：US20240392498A1

公开(公告)日：2024-11-28

申请号：US18796659

申请日：2024-08-07

Applicant: KANEKA CORPORATION

Inventor： Takaaki Kobashi ,  Nobutaka Taoka ,  Takeshi Tanaka

IPC: D06M15/356 ,  D01D5/06 ,  D01D11/06 ,  D01F1/04 ,  D01F6/18 ,  D06M13/463 ,  D06M13/467 ,  D06M15/643 ,  D06M15/65

Abstract: A polyacrylonitrile-based artificial hair fiber having excellent water repellency and excellent tactile feel; a method for producing the fiber; and a head decoration product including the fiber are provided. The water-repellent polyacrylonitrile-based artificial hair fiber contains a polyacrylonitrile-based synthetic fiber (A). An alkyl (meth)acrylate-based water repellent (B) adheres to the polyacrylonitrile-based synthetic fiber (A). The alkyl (meth)acrylate-based water repellent (B) does not have a fluoro group. The alkyl (meth)acrylate-based water repellent (B) has a long-chain hydrocarbon side chain. The attached amount of the alkyl (meth)acrylate-based water repellent (B) is 0.03-1.0 mass % with respect to the total mass of the polyacrylonitrile-based synthetic fiber (A).

公开(公告)号：US20240368830A1

公开(公告)日：2024-11-07

申请号：US18778255

申请日：2024-07-19

Applicant: KANEKA CORPORATION

Inventor： Takaaki Kobashi ,  Akihiro Okamoto ,  Takeshi Tanaka

IPC: D06M16/00 ,  A41G3/00 ,  A41G5/00 ,  D01D5/06 ,  D01F6/18 ,  D01F11/06 ,  D06M13/224 ,  D06M13/463 ,  D06M101/28

Abstract: An antibacterial polyacrylonitrile-based synthetic fiber suitable for synthetic hair that is superior in an antibacterial property and texture, a method for producing the fiber, and a headdress product containing the fiber are provided. The antibacterial polyacrylonitrile-based synthetic fiber contains a quaternary ammonium salt (B) represented by formula (1): and a non-ionic surfactant (C), that are attached to a polyacrylonitrile-based synthetic fiber (A). The non-ionic surfactant (C) contains a sorbitan fatty acid ester (C1) and polyoxyethylene triglyceride (C2). The amount of the quaternary ammonium salt (B) attached is between 0.05 mass % and 0.3 mass % both inclusive with respect to a total mass of the antibacterial polyacrylonitrile-based synthetic fiber. The amount of the non-ionic surfactant (C) attached is between 0.15 mass % and 0.9 mass % both inclusive with respect to the total mass of the antibacterial polyacrylonitrile-based synthetic fiber.

公开(公告)号：US20240240363A1

公开(公告)日：2024-07-18

申请号：US18621470

申请日：2024-03-29

Applicant: KANEKA CORPORATION

Inventor： Takaaki Kobashi ,  Akihiro Okamoto ,  Takeshi Tanaka

IPC: D01F6/40 ,  A41G3/00 ,  A41G5/00 ,  D01D5/06 ,  D01F6/32 ,  D01F11/06 ,  D06M13/224 ,  D06M15/03 ,  D06M16/00 ,  D06M101/28

CPC classification number: D01F6/40 ,  A41G3/0083 ,  A41G5/004 ,  D01D5/06 ,  D01F6/32 ,  D01F11/06 ,  D06M13/2243 ,  D06M15/03 ,  D06M16/00 ,  D06M2101/28 ,  D10B2321/08 ,  D10B2401/13 ,  D10B2503/08

Abstract: Described are antibacterial acrylic artificial hair fibers containing chitosan and a nonionic surfactant. The amount of chitosan extracted with diluted acetic acid is 0.005% by weight to 0.4% by weight. The amount of chitosan extracted with concentrated hydrochloric acid is 0.013% by weight to 1.3% by weight. The nonionic surfactant contains a sorbitan fatty acid ester and a polyoxyethylene triglyceride. The amount of the nonionic surfactant is 0.1% by weight to 0.9% by weight, and the percentage of the sorbitan fatty acid ester in the nonionic surfactant is 20% by weight to 90% by weight.