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Leather, Ink, and Miscellaneous: Inks

Chrome Logwood Inks. These inks are prepared by the addition of 1 part of potassium chromate to 1,000 parts of saturated solution of logwood. Or boil the solution of logwood with chloride or acetate of chromium. Inks of this class have no sediment, do not corrode steel pens, and do not turn moldy. Writing done with them may be soaked in LEATHER, INK, AND MISCELLANEOUS water without the ink running or washing off. They also have the advantage over iron-gall inks that they will not fade.

To make chrome logwood ink on a large scale, boil 22 pounds of logwood in 28 gallons of water down to 14 gallons; when cold, to 1,000 parts of this infusion add gradually 1 part of yellow chromate of potash, stirring constantly.