| 摘要 |
PROBLEM TO BE SOLVED: To obtain a golden ink for a writing tool showing metallic luster sufficient for handwriting in handwriting function even after long-term preservation, causing no blurring, etc., in handwriting function. SOLUTION: This golden ink for a writing tool comprises 10-40wt.% of a brass powder pigment, 5-40wt.% of a resin such as coumarone-indene resin and 1-50wt.% of an N-alkyl-2-pyrrolidone such as N-methyl-2-pyrrolidone, N- ethyl-2-pyrrolidone, N-propyl-2-pyrrolidone, etc. |
