FIBER SIZE COMPOSITION, FIBER SIZE DISPERSION, FIBER SIZE SOLUTION, FIBER BUNDLE, FIBER PRODUCT, AND COMPOSITE MATERIAL

摘要

The purpose of the present invention is to provide a fiber size composition which is capable of preventing fuzzing of fiber bundles. Provided is a fiber size composition comprising (A) an aliphatic alcohol alkylene oxide adduct represented by general formula (1) and (B) a compound, wherein (B) is at least one selected from the group consisting of (B1) polyester, (B2) polyurethane, (B3) a compound having an epoxy group, (B4) a compound having a (meth)acryloyl group, and (B5) a polyether compound other than (A) the aliphatic alcohol alkylene oxide adduct.R¹O(AO)_mH(1)[In general formula (1), R¹ is an aliphatic hydrocarbon group having 8 to 11 carbon atoms having three or more methyl groups, AO is an alkyleneoxy group having 2 to 4 carbon atoms, and m is a number average addition mole number of alkylene oxide and is 3 to 10.]