Resin crayon capable of being used as screw rod and preparation method thereof

Abstract

The invention discloses a resin crayon capable of being used as screw rod and a preparation method thereof. The resin crayon is prepared from, by weight, raw paraffin 30%- 50%, stearic acid 2% - 15%, polyethylene wax 5% -15%, low density polyethylene 15%-35%, talcum powder 5% -15%, white oil 0.5% - 5%, and pigment 3% -10%. By adding the polyethylene wax and the low density polyethylene in the formulation of the raw materials, and optimally controlling the addition amount of the polyethylene wax and the low density polyethylene, namely, controlling the total addition amount of the polyethylene wax and the low density polyethylene to 35-45%, the strength of resin crayon can be effectively improved, and the resin crayon is not prone to break and crack, has excellent breaking-resistant strength, and can be well used as the screw rod of a rotatable resin crayon product, at the same time, the writing performance of the resin crayon product can be greatly enhanced. The resin crayon product can write smoothly and has uniform coloring performance. In addition, based on the extremely high melting point of the polyethylene wax and the low density polyethylene, the high temperature resisting properties of the resin crayon product can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of crayons, in particular to a resin crayon which can be used as a screw and a preparation method thereof. Background technique [0002] Crayons, because of their bright colors and rich color systems, are widely welcomed by children and children, and are a major tool for children and children to learn to paint. [0003] At present, crayons are usually made by mixing three parts: pigment, binder and filler. The pigments used must meet the relevant requirements of the "National Toy Safety Technical Specifications"; the binder used is a mixture of oil and wax, generally paraffin wax, microcrystalline wax, hardened oil, stearic acid, etc.; the filler used is generally talcum powder , which results in a smooth and even coating. But above-mentioned made crayons are soft in quality, not smooth in writing, shed more chips during use, and are also easy to break. [0004] In view of this, the present invention is p...

AI Technical Summary

Problems solved by technology

But the above-mentioned crayons made are soft, the writing is not smo

Images