| 摘要 |
The present invention provides a cleaner composition that can satisfactorily remove lead-free soldering flux adhered to the object to be cleaned, has little impact on the environment, and has odor, inflammability, etc., which are of an acceptable level for practical use; a rinsing agent for rinsing the cleaned object after cleaning with the cleaner composition to remove lead-free soldering flux more effectively; and a removal method using the composition (and the rinsing agent). The cleaner composition for the removal of lead-free soldering flux contains: (A) a polyoxyalkylene phosphate-based surfactant, (B) a metal chelating agent, and (C) a halogen-free organic solvent; and the rinsing agent for removal of lead-free soldering flux contains a carbonate represented by <?in-line-formulae description="In-line Formulae" end="lead"?>MaHb(CO3)C General Formula (7)<?in-line-formulae description="In-line Formulae" end="tail"?> where a is an integer of 1 or 2, b is an integer of 0 to 2, c is an integer of 1 or 2, and M is a volatile organic base. |
