| 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. |
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