Part 265

Dissolve the aniline in the alcohol, and add the other ingredients. Most of the gum arabic precipitates, but according to the author of the formula (Nelson) it has the effect of rendering the ink slow-flowing enough to write with. Filter. {416}

«Hectograph Inks» (see also Hectograph).—I.—Black.—Methyl violet, 10 parts; nigrosin, 20 parts; glycerine, 30 parts; gum arabic, 5 parts; alcohol, 60 parts.

II.—Blue.—Resorcin blue M, 10 parts.

Dissolve by means of heat in a mixture of:

Dilute acetic acid 1 part Distilled water 85 parts Glycerine 4 parts Alcohol, 90 per cent 10 parts

III.—Green.—Aniline green, water solution, 15 parts; glycerine, 10 parts; Water, 50 parts; alcohol, 10 parts.

«Paste Ink to Write with Water.»—I.—Black.—Take 4 parts of bichromate of potash, pulverized, and mixed with 25 parts of acetic acid; 50 parts of liquid extract of logwood; 1⁠/⁠4 part of picric acid; 10 parts of pulverized sal sorrel; 10 parts of mucilage; and 1⁠/⁠4 part of citrate of iron, and mix well. The liquid extract of logwood is prepared by mixing 3 parts of an extract of common commercial quality with 2 parts of water.

II.—Red.—Take 1 part of red aniline mixed with 10 parts of acetic acid; 5 parts of citric acid, and 25 parts of mucilage, all well mixed. For use, mix 1 part of the paste with 16 parts of water.

III.—Blue.—Take 2 parts of aniline blue mixed with 10 parts of acetic acid; 5 parts of citric acid, and 40 parts of mucilage, all well mixed. For use, mix 1 part of the paste with 8 parts of water.

IV.—Violet.—Use the same ingredients in the same proportions as blue, with the difference that violet aniline is used instead of blue aniline.

V.—Green.—Take 1 part of aniline blue; 3 parts of picric acid, mixed with 10 parts of acetic acid; 3 parts of citric acid, and 80 parts of mucilage. For use, 1 part of this paste is mixed with 8 parts of water.

VI.—Copying.—Take 6 parts of pulverized bichromate of potash, mixed with 10 parts of acetic acid and 240 parts of liquid extract of logwood, and add a pulverized mixture of 35 parts of alum, 20 parts of sal sorrel, and 20 parts mucilage. Mix well. For use, 1 part of this paste is mixed with 4 parts of hot water.

«Purple Ink.»—I.—A strong decoction of logwood, to which a little alum or chloride of tin has been added.

II. (Normandy).—To 12 pounds of Campeachy wood add as many gallons of boiling water. Pour the solution through a funnel with a strainer made of coarse flannel, or 1 pound of hydrate, or acetate of deutoxide of copper finely powdered (having at the bottom of the funnel a piece of sponge); then add immediately 14 pounds of alum, and for every 340 gallons of liquid add 80 pounds of gum arabic or gum senegal. Let these remain for 3 or 4 days, and a beautiful purple color will be produced.

«Red Ink.»—Brazil wood, ground, 4 ounces; white wine vinegar, hot, 1 1⁠/⁠4 pints. Digest in a glass or a well-tinned copper or enamel saucepan, until the next day; then gently simmer for half an hour, adding toward the end gum arabic and alum, of each, 1⁠/⁠2 ounce.

«Inks for Shading Pen.»—The essential feature in the ink for use with a shading pen is simply the addition of a sufficient quantity of acacia or other mucilaginous substance to impart a proper degree of consistency to the ink. A mixture of 2 parts of mucilage of acacia with 8 of ink gives about the required consistency. The following formulas will probably be found useful:

I.—Water-soluble nigrosin 1 part Water 9 parts Mucilage acacia 1 part

II.—Paris violet 2 parts Water 6 parts Mucilage acacia 2 parts

III.—Methyl violet 1 part Distilled water 7 parts Mucilage acacia 2 parts

IV.—Bordeaux red 3 parts Alcohol 2 parts Water 20 parts Mucilage acacia 2 parts

V.—Rosaniline acetate 2 parts Alcohol 1 part Water 10 parts Mucilage acacia 2 parts

«Silver Ink.»—I.—Triturate in a mortar equal parts of silver foil and sulphate of potassa, until reduced to a fine powder; then wash the salt out, and mix the residue with a mucilage of equal parts of gum arabic water.

II.—Make as gold ink, but use silver leaf or silver bronze powder.

III.—Oxide of zinc 30 grains Mucilage 1 ounce Spirit of wine 40 drops Silver bronze 3 drachms

Rub together, until perfectly smooth, {417} the zinc and mucilage, then add the spirit of wine and silver bronze and make up the quantity to 2 ounces with water.

«Violet Ink.»—I.—For 2 gallons, heat 2 gills of alcohol on a water bath. Add to the alcohol 2 ounces of violet aniline, and stir till dissolved; then add the mixture to 2 gallons of boiling water; mix well, and it is ready for use. Smaller quantities in proportion.

II.—Another good violet ink is made by dissolving some violet aniline in water to which some alcohol has been added. It takes very little aniline to make a large quantity of the ink.

«White Ink» (for other White Inks see Blueprint Inks).—So-called white inks are, properly speaking, white paints, as a white solution cannot be made. A paint suitable for use as an “ink” may be made by grinding zinc oxide very fine on a slab with a little tragacanth mucilage, and then thinning to the required consistency to flow from the pen. The mixture requires shaking or stirring from time to time to keep the pigment from separating. The “ink” may be preserved by adding a little oil of cloves or other antiseptic to prevent decomposition of the mucilage.