配方类型:

INKS AND MARKING COMPOUNDS

配方说明:

Copying-Pencil Lead (U.S. Patent 2,682,476)

配方组成:

Vinyl Acetate/1
Calcium Stearate/23
Methylene Blue/11
Graphite/10
STearic Acid/5
Calcium Chloride/6
Talc/11
Ethyl Cellulose/29
Soot/5

配制方法: