WRITING TOOLS OF DIRECT LIQUID TYPE

摘要

A resin composition for component parts is provided to manufacture the direct liquid type writing tools without the ink leakage from the pen tip, even though performing etch treatment with a harmful chromic acid, and modification treatment. A resin composition for component parts comprises (A) 20~95 mass % of a polyamide resin; (B) 80~5 mass % of one selected from a styrene resin, olefin-based resin, and polyphenylene ether resin; and (C) a polymer having a maleimide-based monomer unit.