Title:
パラ型全芳香族ポリアミド繊維、およびその製造方法
Document Type and Number:
Japanese Patent JP7152261
Kind Code:
B2
Abstract:
To provide a fiber having high flatness, high intensity, and evenly thin thickness, and a manufacturing method thereof.SOLUTION: The para-type whole aromatic polyamide fiber having a flat cross section in a cross-sectional shape of a single yarn fiber orthogonal toward the fiber axial direction satisfies follows. (a) The para-type whole aromatic polyamide fiber has a ratio (L/T1) of the longest axis (L) in the flat cross section and the longest axis (T1) orthogonal to the (L), of larger than 5.0. (b) The longest axis (T1) is 30 μm or under. (c) The variation coefficient of flatness of the flat cross section is less than 10%.SELECTED DRAWING: None
Inventors:
Naoya Komiya
Manabu Tanaka
Manabu Tanaka
Application Number:
JP2018205356A
Publication Date:
October 12, 2022
Filing Date:
October 31, 2018
Export Citation:
Assignee:
Teijin Limited
International Classes:
D01F6/60; A61L29/06; A61L29/14; D01D4/02; D01F6/80; D04C1/02; D04C1/12
Domestic Patent References:
| JP2014122448A | ||||
| JP2009155775A | ||||
| JP9310223A | ||||
| JP7037571A | ||||
| JP2006200066A | ||||
| JP7026433A | ||||
| JP2004241601A | ||||
| JP2011219909A |
Attorney, Agent or Firm:
Taro Tameyama