| abstract |
(57) [Summary] [Purpose] A cake-like wash surface that has no abnormalities such as bumps, has excellent retention properties, has a long life in the water storage tank, and has an optimally controlled water solubility so that it is maintained at a constant level. To provide a cleaning block composition. [Structure] 8 to 35% by weight of polyethylene glycol distearate having a molecular weight of 3,000 to 12,000 and a dissolution time for dropping of at least 5.5 hours, and 20 to 64% by weight of a water-soluble salt filler % And a solid cake-like wash surface containing 20 to 40% by weight of a nonionic surfactant selected from a condensation product of a long-chain ethylene oxide moiety and an aliphatic alcohol or an alkylphenol. Cleaning block composition. [Effect] A solid cake-like lavatory cleaning block composition having excellent retention properties, a long life in a water storage tank, and an optimally controlled water solubility so as to be kept constant is provided. By doing so, the unpleasant atmosphere of the toilet can be eliminated. It also has the advantage of good workability in molding and handling. |