Watercolor pen ink and preparation method therefor

Abstract

The invention discloses watercolor pen ink which is prepared from the following components in percentage by weight: 2-10% of a natural colorant, 2-15% of a viscosity modifier, 2-15% of a humectant, 0.01-0.5% of a preservative and the balance of deionized water and other auxiliaries, wherein the natural colorant or main components thereof are extracted from fruits, leaves, flowers and stems of plants. The watercolor pen ink disclosed by the invention is prepared from raw materials which are natural plant dyes and non-toxic substances. The watercolor pen ink is various in color, environmentally-friendly, non-toxic, low in price and simple in formula. The preparation method for the watercolor pen ink disclosed by the invention is simple and convenient in process. The watercolor pen ink prepared by the formula and the method is bright in color, stable in performance and smooth to write with.

Description

technical field [0001] The invention relates to a watercolor pen ink, in particular to a watercolor pen ink prepared using natural colorants extracted from plants. Background technique [0002] Watercolor pens are very popular among children because of their bright colors and rich colors. However, most of the watercolor pen inks commonly used in the market currently use chemical synthetic dyes or pigments, and add organic solvents. Long-term use will bring harm to children's health. At the same time, the extensive use of chemical raw materials is likely to cause environmental pollution. Invention patent 201310540972.5 discloses a special ink for children's watercolor pens that can be scrubbed. The dye is an alcohol-soluble substance. Although the material is safe after testing, it has the potential to pollute the environment. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an environmentally friendly and non-tox...

AI Technical Summary

Problems solved by technology

[0002] Watercolor pens are very popular among children because of their bright colors and rich colors. However, most of the watercolor pen inks commonly used in the market currently use chemical synthetic dyes or pigments, and add organic solvents. Long-term use will bring harm to children's health.

At the same time, the extensive use of chemical raw materials is likely to cause environmental pollution

Invention patent 201310540972.5 discloses a special ink for children's watercolor pens that can be scrubbed. The dye is an alcohol-soluble substance. Although the material is safe after testing, it has the potential to pollute the environment.