Solid colorful writing pen

Abstract

The invention relates to a solid color writing pen, which consists of an acid-base indicator, an alkaline compound, a humectant, a surfactant, a lubricant, an adhesive, a substrate, ethanol and water. The preparation method comprises the following steps: a mixture is subjected to mixing, heating, dissolving, evenly stirring, film injection and molding to form the solid color writing pen. The solid color writing pen can replace chalks and whiteboard pens and is mainly used for teaching board writing, office noting and the like. The color writing pen has the characteristics that the pen has good stability, smooth writing, does not contaminate cloths and articles, has no pollution of dust and is environment-friendly; the writing can be wiped and fade by a wet cloth instantly; the pen also has long service life; the ruling length of a 1gram of pen body can reach 446.5 meters; compared with the chalk with the same quality, the writing amount of one color writing pen corresponds to the writing amount of seven common chalks; in addition, the pen also has the characteristics that the pen protects the environment and has bright and clear writing color, and even if under the environment with 70 percent relative humidity, the writing can be also remained and does not fade for a long time.

Description

technical field [0001] The invention relates to a solid writing pen, in particular to a color writing pen with sodium stearate as the matrix. Background technique [0002] Chalk and blackboards have been a regular teaching tool for thousands of years and are still used today. Although the hazards of chalk dust are well known to all women and children, we have done very little in terms of how to eliminate its hazards. Only whiteboards and matt panels and corresponding whiteboard writing pens have been developed on the market, and whiteboard pens need to use plastic pen covers and plastic refills to realize writing. That is to say, whiteboard pens can eliminate chalk dust pollution. Penholders and plastic refills bring us a more terrible hazard - white pollution; in addition, the thickness of the tip of the whiteboard pen is fixed, and it cannot meet the requirements of chalk that can be adjusted by the user according to actual needs; The whiteboard pen also has the disadvan...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a solid color writing pen, which not only overcomes the hazards of chalk dust, but also avoids the environmental pollution caused by the use of plastic pen holders and plastic refills in popular whiteboard markers, and also solves the problem of whiteboard markers. There are defects that the nib is easy to dry, the handwriting is easy to blur when there is a lot of ink, and the handwriting is not clear when the ink is little. It can be wiped and written on the board without waiting for the board to dry. It provides a fast and convenient way for teaching blackboard writing and office notes Pollution, dust-free colored writing pens