Super-smooth plastic colored pencil and production process thereof

Abstract

The invention relates to a super-smooth plastic colored pencil which comprises a penholder, a skin and a refill, wherein the refill is produced from the following materials in parts by weight: 20-30 parts of polystyrene, 10-20 parts of SBS, 30-50 parts of talcum powder, 10-20 parts of pigment, 1-5 parts of pigment dispersant, 1-5 parts of lubricating assistant, 1-5 parts of seaweed extract, 2-5 parts of modified carbon fiber and 3-6 parts of modified polycarbonate. According to the invention, high polymer material is adopted, and the pencil produced according to a scientific and reliable formula has the physical and mechanical performances and cutting characteristic of wood pencils, can resist falling and fracture, is smooth in writing and moderate in concentration and abrasion, and can be subjected to various contour machining on common machining equipment.

Description

technical field [0001] The invention belongs to the field of pencils, and relates to a plastic pencil, in particular to a super-smooth plastic colored pencil which is environmentally friendly, smooth, has a more uniform coloring of the refill, is beautiful, and draws more smoothly, and a production process thereof. Background technique [0002] Pencil is a very widely used tool for writing and drawing. Its main structure is to form a strip lead embedded in the pen holder. The pen holder of a pencil is usually made of wood, and it is usually necessary to make a log into a pen holder in a shape such as a circle, a regular hexagon, or a regular octagon. Consume a lot of high-quality wood. At present, my country's annual output of wooden pencils is about 8 billion, which is equivalent to destroying 600 square kilometers of forest every year and consuming 400,000 cubic meters of high-quality wood. The consumption of a large amount of forest resources has seriously damaged the ec...

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is to provide an ultra-smooth plastic colored pencil that is environmentally friendly, smooth, with more uniform coloring of the refill, beautiful appearance, and smoother drawing and its production process, which can replace traditional wooden pencils and solve the problem of Wooden pencils consume a large amount of wood resources, need paint spraying and coloring, etc., which are not energy-saving and environmentally friendly, and can solve the problems of high resin content and non-environmental protection used in resin composite pencils in the prior art and pencils made of degradable plastic raw materials Problems such as high cost and poor physical performance