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
The depth of the dye tone is determined by the time of immersion both in the copper toning bath and in the dye-bath. Pale tones may therefore be obtained either by giving a short bath in Tone A and fully dyeing, or by toning for a longer time and giving a short immersion in the dye-bath.
By mixing the dye-baths J, K, and L in varying proportions intermediate colors may be obtained just as in tinting.