A polymer material pen core and pencil

Abstract

The invention discloses a high polymer material pen core, which comprises the following raw material components by weight: 30%-70% of thermoplastic plastic, 27%-67% of filler, 1%-2% of a compatibilizer, and 2%-8% of a toughener, the high polymer material pen core has the characteristics of being good in toughness, abrasion resistant, clean, endure to dirty, and not easy to break, the pen core can be used in a pencil to make the pencil wear-resistant, good in anti broken performance and long in service life.

Description

technical field [0001] The invention belongs to the field of stationery, in particular to a polymer material pen core and a pencil. Background technique [0002] The existing common pencil lead is formed by blending a coloring agent and clay, and the clay is used for molding, and the coloring agent is colored. Its toughness is poor, it is easy to break, it is not resistant to falling and it is easy to wear and tear. When using it, it is easy to cause the trouble of constantly cutting the pen and the waste of the pen core due to the easy damage of the pen core, which eventually makes the service life of the pencil shorter. In addition, the coloring of the ordinary pencil lead The coloring agent is easy to fall off, rubbing the surface of the refill or writing is easy to stick the colorant to the hands or clothes and stain the hands or clothes. Blurred, the coloring agent often adheres to other parts except the colored handwriting, making the entire writing layout unclear and...

AI Technical Summary

Problems solved by technology

Its toughness is poor, it is easy to break, it is not resistant to falling and it is easy to wear and tear. When using it, it is easy to cause the trouble of constantly cutting the pen and the waste of the pen core due to the easy damage of the pen core, which eventually makes the service life of the pencil shorter. In addition, the coloring of the ordinary pencil core The coloring agent is easy to fall off, rubbing the surface of the refill or writing is easy to stick the colorant to the hands or clothes and stain the hands or clothes, and because of this, the handwriting written with ordinary pencil refills is easy to come off and appear Blurred, the coloring agent often adheres to other parts except the colored handwriting, making the entire writing layout unclear and untidy, especially when children are writing homework, it is easier to blur the handwriting or put the coloring agent stick to the body and soil the body or clothes

Among them, for the black pencil lead, the existing one is made of graphite and clay blended, formed by clay, graphite colored, easy to break, handwriting is easy to be rubbed and blurred, and because graphite is black, it is easy to make the hands or clothes in contact with it Stick black and get dirty, causing a lot of inconvenience in use

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