Cleaning agent composition comprising an alkylamide solvent and a fluorine-containing quaternary ammonium salt

A cleaning agent composition for use in removing an adhesive residue,

• the composition comprising a quaternary ammonium salt and a composition solvent including a first organic solvent and a second organic solvent;
• the first organic solvent is an amide derivative represented by formula (Z):
• wherein R0 represents an ethyl group, a propyl group, or an isopropyl group;
• and each of RA and RB represents a C1 to C4 alkyl group;
• the second organic solvent is a non-amide organic solvent other than the amide derivative;
• the quaternary ammonium salt includes a fluorine-containing quaternary ammonium salt;
• and
• the composition has a water content less than 4.0 mass %.