Usually only a slight rinse in water is necessary. If the highlights are stained, the film should be washed for five or ten minutes or until clear. Stained highlights are caused either by insufficient washing after toning, too strong a dye-bath, or an incorrect amount of acid in the dye-bath.
Tone K
Tone K—Orange (Dye Tone)
The instructions are exactly as for Tone J, substituting the following dye-bath.
| Avoirdupois | Metric | |||
| Chrysoidin 3R (National Aniline and Chemical Co., Inc.) | ||||
| or Chrysoidin Y (Extra) | 2 | ozs. 320 grs. | 80 | grams |
| Acetic Acid (Glacial) | 32 | ozs. | 1000 | cc. |
| Water to | 50 | gals. | 200 | liters |
Tone L
Tone L—Violet (Dye Tone)
The instructions are exactly as for Tone J, substituting the following dye-bath:
| Avoirdupois | Metric | |||
| Methyl Violet (National Aniline and Chemical Co., Inc.) | 2 | ozs. 320 grs. | 80 | grams |
| Acetic Acid (Glacial) | 32 | ozs. | 1000 | cc. |
| Water to | 50 | gals. | 200 | liters |
Intermediate Dye Tones