The invention provides a sulfonated succinate disodium salt combination type leather greasing agent preparing method. It includes the following steps: using lanonol contains hydroxyl, special colza oil fat acyl diethanolamine and castor oil as material; forming butene diacid monoester; sulfonation by anhydrous sodium sulfite. The out look of the greasing agent is faint yellow ointment shape. It will not stratify for six months while storing at room temperature, 1:9 water miscible liquid for 24h without floating oil. The produced greasing leather has the advantages of flattening, smooth surface, and good light fastness. |