burnt rice starch and soot

Persia
16th Century
Source: Zekrgoo, Sadra. "Methods of Creating, Testing and Identifying Traditional Black Persian Inks." Restaurator. International Journal for the Preservation of Library and Archival Material 35, no. 2 (2014): 133-158.
Recipe Details

Ingredients

rice, soot, gall

Preparation Steps

Based on Recipe 6.IV: Two tablespoons of rice are placed in a metal plate on a stove. As rice darkens, the essence becomes viscous and tacky. Stir until it catches fire. Immediately add water. Boil for 5 minutes and filter through cloth to extract rice starch. In the next step, soot is placed in a mortar and the rice starch is added and brayed. Finally, gall water (prepared as in previous sections) is added and brayed again (p. 144-145).

Original Recipe Text

Based on Recipe 6.IV: Two tablespoons of rice are placed in a metal plate on a stove. As rice darkens, the essence becomes viscous and tacky. Stir until it catches fire. Immediately add water. Boil for 5 minutes and filter through cloth to extract rice starch. In the next step, soot is placed in a mortar and the rice starch is added and brayed. Finally, gall water (prepared as in previous sections) is added and brayed again (p. 144-145).

Evidence

"burnt rice starch can be used as the primary colourant (replacement for soot) or the primary medium (replacement for gum Arabic). It can be used in conjunction with both soot and gum Arabic, or it can be used on its own."

Remarks

Rice starch ink showed 'Rich black' under FCIR (p. 151). It has a penetration rate of 9% (p. 148). Abrasion endurance is harder than carbon but easier than iron gall (p. 147).

Scientific Analysis
Analytical Techniques
cross-section-analysis
FCIR
abrasion endurance
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
ink
BinderRice starch
Paper TypeZerkall 145 m GSM European acid free mould made paper
ColorBlack
RegionPersia
Approx. Year1550
Source Information
TitleMethods of Creating, Testing and Identifying Traditional Black Persian Inks
AuthorZekrgoo, Sadra. "Methods of Creating, Testing and Identifying Traditional Black Persian Inks." Restaurator. International Journal for the Preservation of Library and Archival Material 35, no. 2
CollectionTehran, Iran
Language
N/A
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