| 摘要 |
[Subject] The present invention provides an aqueous dispersion for fiber treatment which dispersion has excellent fiber sizing properties and can improved the adhesion between fibers and a matrix resin. [Means for Solving the Subject] The aqueous dispersion for fiber treatment of the present invention comprises (A) a specific first propylene resin, (B) a specific second propylene resin, (C) an anion type and/or nonion type surfactant and (D) water in a specific weight proportion, wherein resin solid components derived from the resins (A) and (B) are dispersed in water, the weight average molecular weight of the resin (A) and the weight average molecular weight of the resin (B) are different each other, the Mw(a) is larger than the Mw(b), and resin solid components have an average particle diameter of 0.03 to 3μm.
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