Water based ink with metallic gloss for direct fill in ball-point pen

摘要

There is provided a water-based ink comprising: 1-15% by weight of aluminum powder; 10-40% by weight of a humidity retaining agent; 0.05-0.5% by weight of a metal ion-masking agent; 0.1-0.5% by weight of a cross-linking acrylic acid polymer having a number average molecular weight in the range of 3,000,000-5,000,000; 30-80% by weight of water; 2-8% by weight of a dispersant; and 0.2-1.5% by weight of a rustproof lubricant.