Ink for ballpoint pen

Abstract

The invention discloses ink for a ballpoint pen. The ink comprises oil-soluble dye, a film-forming agent, a solvent and a dispersing agent, wherein the film-forming agent is a mixture of a protein film-forming agent, an acrylic resin film-forming agent and a butadiene resin film-forming agent, and the dispersing agent is a mixture of tri-ethylhexyl phosphonic acid, methyl anyl alcohol, polyacrylamide and fatty acid polyethylene glycol ester. The ink is strongly erasable and easy to wipe off and accordingly paper can keep clean and tidy.

Description

technical field

[0001] The invention relates to an ink, in particular to an ink for a ballpoint pen. Background technique

[0002] Ball-point pens are deeply loved by consumers because of their clear handwriting, ease of use and low price. Ball-point pen inks are divided into oily inks, water-based inks and neutral inks between the two. Various inks for ball-point pens, for example, the Chinese invention patent application publication specification of 96116415.8 discloses a kind of erasable ink for ball-point pens with application number, the ink is black or blue-black viscose colloid, the weight of its components The percentages are 20-70% of dipping solution, 10-40% of grade A high-pigment carbon black, 0.1-13% of oleic acid, and 5-30% of triphenyl ester solution. The ink is matched with a ballpoint pen equipped with a booster device, which can not only write smoothly and clearly, but also can be erased with an eraser when encountering wrong pens in writing or places that...