| 摘要 |
PURPOSE:To provide the title lubricant with its maximum viscosity when imparted with water within a specified range, thus causing significant increase in viscosity with water addition and capable of markedly improving the operability of fluid jet processing, containing a smoothing agent and additive and a small amount of an emulsifier. CONSTITUTION:Firstly, a lubricant composition is prepared by formulating (A) as a smoothing agent, an ester of aliphatic carboxylic acid (pref. methyl oleate or octyl palmitate), (B) an additive (e.g. anionic antistatic agent) and (C) <10wt.% of an emulsifier (pref. an alkylene oxide adduct of a compound having at least one active hydrogen). This composition, when imparted with water, gives a maximum viscosity of <=1000cPs, that is, causes little rise in viscosity due to water addition. This composition is put to primary emulsification followed by making a high speed fluid flow atomization into an aqueous emulsion with excellent stability <=1mum in particle size. The objective lubricant thus obtained, with low content of the emulsifier, causes significant increase in viscosity by water addition, thus markedly improving the operability in fluid jet processing. |
