公开(公告)号：US4474473A

公开(公告)日：1984-10-02

申请号：US506885

申请日：1983-06-21

申请人： Hiroshi Higuchi ,  Takayuki Kurahashi ,  Naohiko Mushiake ,  Yoichi Taniguchi

发明人： Hiroshi Higuchi ,  Takayuki Kurahashi ,  Naohiko Mushiake ,  Yoichi Taniguchi

IPC分类号： C09D11/00 ,  B29B7/00 ,  C08J3/20 ,  C08J3/22 ,  C09B67/00 ,  C09B67/46 ,  C09C3/00 ,  C09D11/02 ,  C09D17/00 ,  B29B1/10

CPC分类号： C09D17/002 ,  B29B7/007 ,  C09B67/0021 ,  C09B67/0091 ,  C09C3/003 ,  C01P2004/61

摘要： Pigment dispersion is manufactured by continuously flushing pigment press-cake. First and second troughs supply hydrophobic liquid organic media and the pigment wet-cake respectively at a constant rate to a twin screw co-rotating extruder having a L/D (length/diameter) value of 25 or more. The twin screw co-rotating extruder includes a feeding part where the hydrophobic liquid organic media and the pigment wet-cake are fed from the first and second troughs, a flushing part for flushing the pigment particles from water phase to form an organic medium phase, and a dehydrating part for removing water from the flushed mixture. The hydrophobic liquid organic media and the pigment wet-cake are fed to the twin screw co-rotating extruder, and the pigment press-cake is flushed and dehydrated continuously in the extruder to obtain the pigment dispersion.

摘要翻译： 通过连续冲洗颜料压饼来制造颜料分散体。 第一和第二槽分别以L / D（长/直径）值为25以上的双螺杆同向旋转挤出机以恒定速率分别供给疏水性液体有机介质和颜料湿滤饼。 双螺杆同向旋转挤出机包括从第一和第二槽供给疏水性液体有机介质和颜料湿饼的进料部分，用于从水相冲洗颜料颗粒以形成有机介质相的冲洗部， 以及用于从冲洗的混合物中除去水的脱水部件。 将疏水性液体有机介质和颜料湿滤饼供给到双螺杆共旋转挤出机中，在挤出机中将颜料压饼连续冲洗脱水，得到颜料分散体。