Abstract: The object of the present invention is to provide a novel cleaner composition that not only reduces ignition by flame and has a small influence on the environment, but that also has an excellent property of dissolving flux residues adhered on narrow portions or in narrow gaps in an object to be cleaned that was subjected to soldering with a lead-free solder, and reduces recontamination of the object in the water-rinsing process. The present invention uses a halogen-free organic solvent (A) represented by a specific Formula; an amine-based compound (B) represented by a specific Formula; a chelating agent having no amino group (C); and, as required, water.

Abstract: The object of the present invention is to provide a novel cleaner composition that not only reduces ignition by flame and has a small influence on the environment, but that also has an excellent property of dissolving flux residues adhered on narrow portions or in narrow gaps in an object to be cleaned that was subjected to soldering with a lead-free solder, and reduces recontamination of the object in the water-rinsing process. The present invention uses a halogen-free organic solvent (A) represented by a specific Formula; an amine-based compound (B) represented by a specific Formula; a chelating agent having no amino group (C); and, as required, water.

Abstract: 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 MaHb(CO3)C??General Formula (7) 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.

Abstract: The cleaning composition of this invention comprises, as effective components, a compound (A) represented by the formula (1) and a nonionic surfactant (B): wherein R1 represents a hydrogen atom or a straight-chain or branched-chain alkyl group having 1 to 5 carbon atoms and R2 represents a hydrogen atom or a straight-chain or branched-chain alkyl group having 1 to 5 carbon atoms. The cleaning composition of the invention is excellent in detergency and is satisfactory in respect of environmental protection properties, odor and flammability. An article to be cleaned can be cleaned by coming into contact with this cleaning composition.

Abstract: The cleaning composition of this invention comprises, as effective components, a compound (A) represented by the formula (1) and a nonionic surfactant (B): 1