Relation between viscosity and temperature

• Publisher: Elsevier Science
• Year: 1877
• Tongue: English
• Weight: 56 KB
• Volume: 103
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(77)90766-9

✦ Synopsis

India Ink, of a deep black, which gives neutral tints for halfshades, is very rare. It may be made as follows : Rub thoroughly together 8 parts lampblack, 64 parts water, and 4 parts of finely pulverized indigo. Boil until most of the water is evaporated, then add 5 parts gum arabic, 2 parts glue, and 1 part extract of chicory. Boil the mass again till it is thickened to a paste, then shape it in wooden moulds which are rubbed with olive or almond oil.--Papier-Zeitung, Feb. 15, 1877. C.