INK FOR INK-JET RECORDING,申请号JP19930040058-传众专利搜索

INK FOR INK-JET RECORDING

申请公布号：JPH06248210(A)

申请号：JP19930040058

申请日期：1993.03.01

申请公布日期：1994.09.06

申请人：

SEIKO EPSON CORP

发明人：SANO YUKARI;SHIMIZU JUNKO;HAYASHI HIROKO

分类号：C09D11/00;C09D11/02;C09D11/023;C09D11/037;C09D11/322;C09D11/324;C09D11/326;C09D11/38;(IPC1-7):C09D11/00

主分类号：C09D11/00

摘要：PURPOSE:To obtain an ink giving high-quality printed letter having high uniformity and density and free from bleeding. CONSTITUTION:The ink-jet recording ink contains a pigment and a dispersing agent consisting of a polymer having a hydrophilic structure part as well as a hydrophobic structure part and satisfies the formula; 0.5XD<=Wr/Wp1.0XD wherein Wp is weight of pigment in the ink, Wr is weight of the water-soluble resin in the ink and D is the ratio of the minimum weight of the dispersing agent necessary for dispersing the pigment to the weight of the pigment. The ink is further incorporated with urea and/or a sugar.