| 摘要 |
PURPOSE:To realize improvements in the preventing of foaming, degreasing power and penetration and to reduce the corrosiveness by using Na2CO3, Na2 SiO3, sodium gluconate, a specified block copolymer, and a specified nonionic surfactant as the constituents. CONSTITUTION:The title detergent is obtained by dissolving in water 0-60wt.% Na2CO3 (A), 0.1-60wt.% Na2SiO3 (B), 0.1-30wt.% sodium gluconate (C), the total of components A, B, and C being 45-99wt.%, 1-10wt.% polyoxyethylene/ polyoxypropylene block polymer (D) comprising an adduct of polypropylene glycol having a molecular weight of 1,000 to 2,000 with ethylene oxide in an amount of 30-50wt.% based on the total molecular weight, and 1-10wt.% nonionic surfactant (E) comprising a 10-14C straight-chain secondary alcohol/ethylene oxide/propylene oxide adduct, wherein the average number (n) of ethylene oxide molecules added is 4 to 10, that (m) of propylene oxide molecules added is a number satisfying the equation n/(m+n)=0.4 to 0.8, and the weight ratio of component D to component E is (5:1) to (1:2). |
