| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber or fiber product containing a dyed nanofiber aggregate having coloring property in a level which is practically free from trouble, in the dyed nanofiber aggregate. SOLUTION: In the dyed nanofiber aggregate, a water-insoluble dye is carried in spaces of single fibers of a nanofiber aggregate having 10-200 nm single fiber diameter (average) and≤3% ratio of area having≥200 nm single fiber diameter and having a slight dispersion in fiber diameter. COPYRIGHT: (C)2007,JPO&INPIT
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