| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an oil ink for a steel material, capable of writing on various steel materials and easily washing out written characters, etc., with water. <P>SOLUTION: This oil ink for the steel material is constituted by at least a coloring material, an organic solvent and a polyoxyethylene alkyl ether, polyoxyethylene hydrogenated castor oil, polyethylene glycol fatty acid ester or polyoxyethylenepolyoxypropylene alkyl ether, having 16-20 HLB and being a solid in normal temperatures. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
