Nano rubber eraser

Abstract

The nano-rubber includes the following components and content (weight percentage): nano-rubber, characterized in that: it includes the following components and weight percentage content: micro-nano particles: 10-40%, dispersion forming agent: 5-40%, opacifier: 40-80%, the micro-nano particles are inorganic substances with a particle size of 20-1000nm, and the inorganic substances are talcum powder, or mica powder, or white molybdenum disulfide, or calcium carbonate, or diatomaceous earth, or Montmorillonite, or boron nitride, or fumed silica, or activated clay. Because the present invention does not contain highly volatile hydrocarbon solvents, it not only avoids pollution and saves resources, but also is not easy to scratch the thin paper when rubbing, and can be applied and changed immediately, saving time; if it is necessary to adjust the color tone of the nano rubber , just add an appropriate amount of colorant to the above formula.

Description

Technical field [0001] The invention relates to a nanometer eraser used for coating and rewriting misprints of fountain pens and ballpoint pens. Background technique [0002] At present, for various oil-based ballpoint pens, water-based pens, and signature pens when writing or drawing, the correction fluids described in Chinese Patent Application Nos. 92102999 and 98805226, U.S. Patent No. 4,654,081, and Japanese Patent J01261473 are generally used to coat and rewritten. Although these correction fluids have different characteristics, they are all metastable liquid dispersion systems composed of highly volatile solvents, film formers, opacifiers and a small amount of surfactants. The highly volatile solvents in this system generally use small molecule organic compounds such as benzene, toluene, cycloalkane, methylcycloalkane, trichloroethane, and ethanol; the film-forming agent uses natural or synthetic polymers. The polymer is dissolved in the solvent, and together with o...

AI Technical Summary

Problems solved by technology

The disadvantage of this correction fluid is that the volatile solvents are generally small molecule organic compounds that pollute the environment and are harmful to human health, especially the commonly used hydrocarbons, which are highly volatile toxic chemicals. Substances that can invade the human body through the respiratory tract and damage the hematopoietic system and nervous system

The disadvantage of the above-mentioned patents is that when the correction stick or the solid correction object rubs back and forth on the false marks, the thin paper is easily scratched due to the excessive friction coefficient between the stick body and the paper surface.