配方类型:

INKS

配方说明:

Hectograph Ink Base (Black) (U.S. Patent 2,752,254)

配方组成:

Rhoduline Blue/15-20
Crystal Violet/35-45
Chrysoidine/40-45

配制方法:

Disperse 100 g. of above in 80 to 200 cc. water and dry to moisture content of <2%.