Ball-point pen ink formulations the main ingredients include dyes, film former, solvent, dispersing agents and other additives.
The basic recipe ingredients: dye film-forming agent 5% -25% 5% -15% Solvent 30% -60% Dispersant 5% -20% Other additives 2% -10%
1, dye
The role of the dye is to give enough ink color depth, ball-point pen ink used in the oil-soluble dyes can be divided into alcohol-soluble dyes and dyes, dyes used in this study for the Department of Phthalocyanine dye, the dye is not soluble in solvents, have good dispersion in the ink nature of the film-forming agent has a strong adhesion, so as not to permeate the paper inside, and the color should be bright color, weathering resistance.
2, film-forming agent
Film-forming agent is a ball-point pen with erasable ink of an important part of its role is mainly in the paper surface, uniform film and as a dye carrier. Fantastic Pens Requiring it to paper, the performance of certain adhesion, easy to peel off, but can be gently wiped the eraser, and the coloring agent has a strong adhesion, good solubility in solvents, and other ingredients with each other to stability and long-term preservation . In this study, the use of rubber-like film-forming agent.
3, solvent
In the nature of ball-point pen with erasable ink, solvent's role is to dissolve dyes, film-forming agent, and compatibility with various additives to provide a certain degree of liquidity, but also there is just right of the volatile, in the writing process can be effectively controlled drying speed. Tests showed that use of co-solvent than the single-solvent effect is good, this experiment used solvent A: solvent B = 1:1.5 ~ 2.5 of the co-solvent system, the best results.
4, dispersant
An appropriate amount of dispersant can reduce the adhesion of ink and paper surface, Gel Ink Pen making the ink to write to the paper surface in a certain period of time with the erasable nature of dispersant to keep the ink can also be fluent in written and long-term stability. Substance is used in this study, phthalate esters and ethylene glycol esters of the two mixtures prepared according to a certain percentage.