Production method of environment-friendly easy-to-erase type liquid teaching writing ink

Abstract

The invention discloses a production method of environment-friendly easy-to-erase type liquid teaching writing ink. The production method of ink specially used for teaching comprises the following steps: 1) taking the following raw materials in parts by weight: 10-30 parts of color paste, 1-10 parts of modified resin, 10-30 parts of a modified auxiliary, 1-5 parts of organic silicone oil 200, 1-5 parts of silicone oil XIAMETER PMX1403, 0.1-5 parts of propylene glycol, 1-5 parts of AEO, 0.1-1 part of organic bentonite SD, 1-2 parts of GRACE extinction powder C803 for printing ink, 0.1-5 parts of food-grade glycerol and 50-75 parts of ethanol; and 2) sequentially adding the raw materials, and uniformly stirring, so that the ink finished product is obtained. When a writing pen (ink storage core type and capillary system type) filled by adopting the ink obtained by adopting the production method disclosed by the invention writes on enamel, baking finish and plastic stuck white boards or color plates, no dust is produced, so that dust pollution caused when a chalk is used in a teaching process is thoroughly solved, and the physical and psychological health of teachers and students is protected; and the delayed wiping time at normal temperature can reach 200 days.

Description

technical field [0001] The invention relates to a method for making an environment-friendly and easy-to-erasable liquid teaching writing ink Background technique [0002] At present, the common problems and disadvantages of the teaching equipment used in the majority of schools in our country can be roughly divided into the following categories: [0003] (1) The chalk writing that adopts in the teaching process produces a large amount of dust, has a strong impact on the physical and mental health of teachers and students. [0004] (2) The ordinary whiteboard pens currently used in some schools can write on white boards or color boards such as enamel, baking varnish, and plastic, and have poor erasability (including poor erasability in time and poor erasability in delay). Teachers need to spend a lot of time and energy wiping the blackboard, which affects teaching efficiency. [0005] (3) Ordinary whiteboard markers can only be used on high-gloss boards. [0006] (4) most ...

AI Technical Summary

Problems solved by technology

[0003] (1) The chalk writing used in the teaching process produces a lot of dust, which seriously affects the physical and mental health of teachers and students

[0004] (2) The ordinary whiteboard pens currently used in some schools can write on white boards or color boards such as enamel, baking paint, and pasting plastic, and have poor erasability (including poor timely erasability and delayed erasability)

Teachers need to spend a lot of time and energy wiping the blackboard, which affects teaching efficiency

[0005] (3) Ordinary whiteboard markers can only be applied to high-gloss boards

[0006] (4) Most of the common whiteboard markers now contain toxic and harmful irritating odors, pollute the environment, and seriously affect the physical and mental health of teachers and students