abstract |
An alkaline cleaning composition is provided. The alkaline cleaning composition includes an alkaline compound, 5 to 40% by weight of propylene glycol monomethyl ether, 10 to 30% by weight of water, and a polar solvent. Wherein, the polar solvent includes acetals, alcohol ethers, pyrrolidones, or a mixture thereof, and the alkaline cleaning composition excludes benzenesulfonic acid. |