Cleaning composition and cleaning method

A cleaner composition for cleaning an object of cleaning in a white turbid state,

• the cleaner composition comprising first to fourth organic solvents and water,
• wherein the first organic solvent is at least one compound selected from the group consisting of a hydrophobic aromatic compound, a hydrophobic terpene-based compound, and a hydrophobic naphthene-based compound, all of the compounds having a solubility value in water, at a measurement temperature of 20° C., of 10% by weight or less,
• the second organic solvent is a hydrophobic monoalcohol compound having a solubility value in water, at a measurement temperature of 20° C., of 10% by weight or less, and the second organic solvent is at least one selected from the group consisting of 1-hexanol, methyl amyl alcohol, 2-ethyl butyl alcohol, methyl isobutyl carbinol, cyclohexanol, 1-heptanol, 2-heptanol, 3-heptanol, 4-heptanol, 2-methylcyclohexanol, benzyl alcohol, 1-octanol, 2-octanol, 2-ethylhexanol, 2-nonanol, diisobutylcarbinol, and 3,5,5-trimethylhexanol,
• the third organic solvent is a hydrophilic nitrogen-containing compound and a hydrophilic sulfur-containing compound, or any one of the compounds, both the compounds having a solubility value in water, at a measurement temperature of 20° C., of 50% by weight or greater, and the hydrophilic nitrogen-containing compound is at least one selected from the group consisting of N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, dimethylacetamide, N,N-dimethylformamide, and N,N-diethylformamide,
• the fourth organic solvent is a hydrophilic amine compound having a solubility value in water, at a measurement temperature of 20° C., of 50% by weight or greater,
• the amount of incorporation of the second organic solvent is adjusted to a value within the range of 3 to 100 parts by weight with respect to 100 parts by weight of the first organic solvent,
• the amount of incorporation of the third organic solvent is adjusted to a value within the range of 3 to 100 parts by weight with respect to 100 parts by weight of the first organic solvent,
• the amount of the fourth organic solvent is adjusted to a value of below 0.1 parts by weight with respect to 100 parts by weight of the first organic solvent,
• the amount of incorporation of water is adjusted to a value within the range of 50 to 3,900 parts by weight with respect to 100 parts by weight of the total amount of the organic solvents, and
• when the cleaner composition is subjected to phase separation into an oil phase and an aqueous phase, the water concentration in the oil phase, at a measurement temperature of 25° C., is adjusted to a value of 5% by weight or less.