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发明公开
CN102234454A 水性颜料油墨 无效 - 撤回

水性颜料油墨
摘要：
提供了水性颜料油墨。该水性颜料油墨含有水、颜料以及水溶性高分子化合物。所述水性颜料油墨中所述颜料的量以重量计少于5％。所述水性颜料油墨使用锥板式粘度计在25℃所测得的粘度(mpa·s)满足下面的关系，0≤(VB-VA)/VB＜0.05、VC/VA≥1.5且3mPa·s≤VA≤15mPa·s，其中，VA是在转数50rpm下测得的粘度，VB是在转数2.5rpm下测得的粘度，VC是向所述水性颜料油墨中加入以重量计0.5％的氯化钙后在转数50rpm下测得的粘度。
摘要（英）：

According to one embodiment, an aqueous pigment ink includes water, a pigment, and a water-soluble polymeric compound. The pigment is contained in the aqueous pigment ink in an amount of less than 5 wt %. The aqueous pigment ink has viscosities (mPas) measured at 25 DEG C using a cone-plate type viscometer and satisfying the following relationships: 0<=(VB-VA)/VB<0.05 VC/VA>=1.5 3 mPas<=VA<=15 mPas wherein VA represents a viscosity measured at a rotation speed of 50 rpm, VB represents a viscosity measured at a rotation speed of 2.5 rpm, and VC represents a viscosity measured at a rotation speed of 50 rpm after adding calcium chloride in an amount of 0.5 wt % of the aqueous pigment ink.

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