公开(公告)号：US20150299908A1

公开(公告)日：2015-10-22

申请号：US14646962

申请日：2013-11-22

Applicant: MITSUBISHI RAYON CO., LTD.

Inventor： Mitsuhiro HAMADA ,  Hiroyuki NAKAO ,  Hiromi ASO ,  Yoshitaka KAGEYAMA

IPC: D01F9/21 ,  D01F6/16

CPC classification number: D01F9/21 ,  D01D10/00 ,  D01F6/16 ,  D01F9/225 ,  D01F11/06 ,  D06M10/001 ,  D06M10/025

Abstract: The purpose of the present invention is to provide a method whereby deposits which have occurred on the surfaces of a fiber bundle during flameproofing treatment of a carbon fiber-precursor acrylic fiber bundle can be efficiently removed prior to carbonization treatment at high temperature. The method for production of carbon fiber bundle includes a step in which, after a carbon fiber-precursor acrylic fiber bundle has been heated and undergone flameproofing treatment, the fiber bundle is subjected to a plasma treatment involving contact with a plasma gas in gas phase, or to an ultraviolet treatment involving irradiation with ultraviolet in gas phase; and a step in which the fiber bundle having undergone the plasma treatment or the ultraviolet treatment is subjected to a carbonization treatment.

Abstract translation: 本发明的目的是提供一种在碳纤维前体丙烯酸类纤维束的防火处理期间在纤维束表面发生的沉积物可以在高温下碳化处理之前有效地除去的方法。 碳纤维束的制造方法包括在碳纤维前体丙烯酸系纤维束被加热并进行防火处理之后，对纤维束进行等离子体处理，其包括与气相等离子体气体接触， 或涉及在气相中照射紫外线的紫外线处理; 对经过等离子体处理或紫外线处理的纤维束进行碳化处理的工序。