| 摘要 |
PURPOSE:To provide a color lead for propelling pencil, crayon, pastel, conte, etc., containing metallized mica powder as coloring material and giving metallic drawn mark of gold color, silver color, etc. CONSTITUTION:Mica powder having particle diameter of e.g. 10-100mum is plated with a metal such as copper. The objective color lead can be produced by kneading the metallized mica powder together with a binder such as ethyl cellulose and extrusion-molding the kneaded mixture.
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