配方类型:

INKS AND MARKING COMPOUNDS

配方说明:

Multicolor Carbon Paper (U.S. Patent 2,559,608)

配方组成:

Methyl-Violet Base/3.5
Diglycol Oleate/15
Propylene Glycol Monostearate/28
Victoria-Blue Base/1
Malachite-Green Base/3.5
Red Lake C/16
Oil Yellow BB/2
Carnauba Wax/31

配制方法:

The black copy turns into a brilliant red on contact with the sodium hypochlorite solution specified in Formula No.1. However, if instead, the copy is treated with a 2% aqueous ammonium sulfide solution, its color is changed to violet. This can be turned into red by subsequently applying sodium hypochlorite solution.