发明名称 |
Process for preparing an ink jet ink |
摘要 |
A process for making an ink jet ink comprising:a) providing an organic pigment dispersion containing a pigment and a carrier;b) mixing the pigment dispersion with rigid milling media having an average size less than about 100 mum;c) introducing the mixture from step b) into a high speed mill;d) milling the mixture from step c) until a pigment particle size distribution is obtained wherein about 50% by weight of the pigment particles have a particle size less than about 100 nanometers;e) separating the milling media from the mixture milled in step d); andf) diluting the mixture from step d) to obtain the ink jet ink; wherein the milling media comprises negatively-charged polymeric beads which are crosslinked sufficiently to prevent swelling of the polymeric beads to levels greater than or equal to about 50 volume % within 4 hours at 25° C. in the carrier.
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申请公布号 |
US6210474(B1) |
申请公布日期 |
2001.04.03 |
申请号 |
US19990326064 |
申请日期 |
1999.06.04 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
ROMANO, JR. CHARLES E.;BUGNER DOUGLAS E.;VANHANEHEM RICHARD C.;BENNETT JAMES R.;SMITH DENNIS E.;GUISTINA ROBERT A. |
分类号 |
B41J2/01;B41M5/00;C09B67/04;C09C3/04;C09D11/00;(IPC1-7):C09D11/00 |
主分类号 |
B41J2/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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