Washable crayon for children

Abstract

The invention relates to writing and drawing appliance, specifically to a washable crayon for children. The washable crayon is composed of the following materials in parts by weight: 35 to 45 parts of water-soluble wax, 3 to 5 parts of sodium dialkyl benzene sulfonate, 15 to 25 parts of glycerol, 0.3 to 0.8 part of a chromophoric agent, 3 to 5 parts of a color-developing agent, 15 to 25 parts of emulsifying wax, 1.5 to 2.5 parts of polyethylene glycol, 3 to 5 parts of stearic acid, 15 to 25 parts of weak acid, 10 to 15 parts of talcum powder, 25 to 35 parts of titanium dioxide, 5 to 10 parts of paraffin, 5 to 10 parts of hydrogenated oil, 15 to 20 parts of advanced saturated fatty acid, 15 to 25 parts of potato starch and 15 to 25 parts of glycerol monostearate. The washable crayon for children provided by the invention is bright in color, is non-toxic and harmless, is easy to clean, does not remain writing traces through wet wiping, can automatically fade in two days even if writing contents are not wiped, has no dust pollution, is friendly to the environment, is non-toxic and harmless, can fade through wiping with water when written on paper, does not remain traces, has fresh color, is smooth and clear to write, and is free of the situation of scaling-off.

Description

technical field [0001] The invention relates to writing and painting utensils, in particular to a washable crayon for children. Background technique [0002] The main components of traditional crayons used by children are paraffin, talcum powder and pigments, and the commonly used pigments are all non-degradable and harmful to the environment. It is easy to draw on clothes, bed sheets, furniture and other items during children's use, and it is difficult to erase and fade, which may cause the items to be discarded and unsightly. The manufacturing process and formula of traditional crayons are relatively simple, and the main ingredients are paraffin, talcum powder and pigments. The crayons are directly used for whiteboard teaching and writing, and the handwriting is not easy to erase; the crayons are used for children's writing and painting exercises, and children often apply the crayons to the surfaces of clothes, skin, walls, and furniture, and these handwritings are also d...

AI Technical Summary

Problems solved by technology

It is easy to draw on clothes, bed sheets, furniture and other items during children's use, and it is difficult to erase and fade, which may cause waste and unsightly items