公开(公告)号：US20210361011A1

公开(公告)日：2021-11-25

申请号：US17393818

申请日：2021-08-04

申请人： KANEKA CORPORATION

发明人： Norikazu Yasutomo ,  Genta Sakamoto ,  Hiroshi Fujinaga

IPC分类号： A41G3/00 ,  D01F8/14 ,  D01F8/12 ,  A41G5/00

摘要： The present disclosure relates to a core-sheath conjugate fiber for artificial hair including a core part and a sheath part. The core-sheath conjugate fiber for artificial hair has a flat multilobed cross sectional shape, and has a core-to-sheath area ratio of 2:8 to 9:1, and a viscosity ratio a/b between a melt viscosity a of a core part resin composition and a melt viscosity b of a sheath part resin composition is 2.0 or more and 7.0 or less. The present disclosure provides a core-sheath conjugate fiber for artificial hair having a touch close to that of human hair, excellent peel resistance at room temperature, and good combing property, a hair ornament product including the core sheath conjugate fiber, and a production method.

公开(公告)号：US12031241B2

公开(公告)日：2024-07-09

申请号：US17393698

申请日：2021-08-04

申请人： KANEKA CORPORATION

发明人： Genta Sakamoto ,  Norikazu Yasutomo ,  Hiroshi Fujinaga ,  Takashi Ogino

IPC分类号： D01F8/14 ,  A41G3/00 ,  D01D5/10 ,  D01F1/04 ,  D01F8/12

CPC分类号： D01F8/14 ,  A41G3/0083 ,  D01D5/10 ,  D01F1/04 ,  D01F8/12 ,  D10B2331/02 ,  D10B2331/04 ,  D10B2401/20 ,  D10B2503/08

摘要： The present disclosure relates to a core-sheath conjugate fiber for artificial hair including a core part and a sheath part, wherein the core-sheath conjugate fiber for artificial hair is a colored fiber, a color difference between the core-sheath conjugate fiber for artificial hair and the core part is 3.0 or more, and a color difference between the core-sheath conjugate fiber for artificial hair and the sheath part is also 3.0 or more. Provided are a core-sheath conjugate fiber for artificial hair capable of realizing deep colors and having a good appearance close to that of human hair, a hair ornament product including the core-sheath conjugate fiber, and a production method.

公开(公告)号：US20210363667A1

公开(公告)日：2021-11-25

申请号：US17393698

申请日：2021-08-04

申请人： KANEKA CORPORATION

发明人： Genta Sakamoto ,  Norikazu Yasutomo ,  Hiroshi Fujinaga ,  Takashi Ogino

IPC分类号： D01F8/14 ,  D01F1/04 ,  D01D5/10 ,  A41G3/00 ,  D01F8/12

摘要： The present disclosure relates to a core-sheath conjugate fiber for artificial hair including a core part and a sheath part, wherein the core-sheath conjugate fiber for artificial hair is a colored fiber, a color difference between the core-sheath conjugate fiber for artificial hair and the core part is 3.0 or more, and a color difference between the core-sheath conjugate fiber for artificial hair and the sheath part is also 3.0 or more. Provided are a core-sheath conjugate fiber for artificial hair capable of realizing deep colors and having a good appearance close to that of human hair, a hair ornament product including the core-sheath conjugate fiber, and a production method.