OXOE series includes new type of environmental-friendly nonionic surfactants derived from natural vegetable oils. Products show mild performance, no irritation to skin and eyes, good biodegradability as well as good fluidity and uniformity below -5℃. They do not form non desired gels when mixed with water in any proportion and can be formulated with any type of ionic surfactants in any proportion. Through formula optimization it can replace non-ionic surfactants such as isomeric alcohol ethers or fatty alcohol ethers to be applied in concentrated and ultra-concentrated washing products. By doing so the amount of solvent can be significantly reduced or even eliminated. Applications are daily chemical detergents, industrial cleaning, textile printing and dyeing etc. Super concentrated detergent products are one of the major application fields.