Colored liquid composition for editing pen
AssigneeConte
InventorsJosé Duez, Carine Bethouart
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Abstract
The colored liquid composition of the invention for a highlighter comprises a coloring element and water, the water content by weight lies in the range 10% to 30%. In addition, it comprises at least 40% of a liquid component having surface tension greater than 40 mN/m. In a variant, the coloring element is a tracer solvent having a fluorescent appearance under basic pH, in particular hydroxypyrenetrisulfonic acid, the pH of the composition lying in the range 8 to 9, and the component having surface tension greater than 40 mN/m is triethanolamine. Under such circumstances, the composition contains an acid to neutralize the triethanolamine in part in order to obtain the basic pH, for example hydrochloric acid.
Claims16
A colored liquid composition for highlighting, the composition comprising water and a coloring element, wherein the water content by weight lies in the range 10% to 30% and wherein the composition comprises at least 40% of a liquid component having surface tension greater than 40 mN/m, wherein the liquid component having surface tension greater than 40 mN/m is a C4H6O4 component of formula:
A colored liquid composition for highlighting, the composition comprising water and a coloring element, wherein the water content by weight lies in the range 10% to 30% and wherein the composition comprises at least 40% of a liquid component having surface tension greater than 40 mN/m, wherein the liquid component having surface tension greater than 40 mN/m is a C4H6O4component of formula:
- and wherein the water content is about 10% and the C4H6O4component content is about 80%.
Dependencies are inferred from the claim text.