SOLID CRIMP SHORT FIBER, WAD AND FIBER PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a wad excellent for bulkiness and heat retaining property made of a fiber with crimps having a fin part projecting in a radial direction even when it is not hollow and to provide a fiber product using the wad.

SOLUTION: A short fiber is provided so as to have a core part in a cross section orthogonal to a filament axis and a fin part projecting in a radial direction from the core part. The short fiber has a crimp number of 3 to 20 mounts per 25 mm, a crimp rate of 6 to 50% and a fin ratio calculated by the following equation of 0.4 to 1.4. Fin ratio=B/A, where A represents a core part size and B represents a length of the fin part. (The core part size is: a diameter of circle when the core part of the cross section of the fiber has a circular shape; a diameter of an inscribed circle of a polygon when it has a polygonal shape; a diameter at a short radius side when it has an elliptic shape.)

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