Fusible Enamel Colors
Description
This section is from the "Henley's Twentieth Century Formulas Recipes Processes" encyclopedia, by Norman W. Henley and others.
Fusible Enamel Colors
The following colors, are fusible by heat, and are all suitable for the decoration of china and glass. In the following collection of recipes certain terms are employed which may not be quite understood by persons who are not connected with either the glass or porcelain industries, such as "glost fire" and "run down," and in such cases reference must be made to the following definition's:
"Run down." Sufficient heat to melt into liquid.
"Glost fire." Ordinary glaze heat.
"Grind only." No calcmation required.
"Hard fire." Highest heat attainable.
"Frit." The ingredients partly composing a glaze, which require calcination.
"Stone." Always best Cornwall stone.
"Paris white." Superior quality of whiting.
"Parts." Always so many parts by weight, unless otherwise stated.
"D. L. Zinc." Particular brand not essential. Any good quality oxide of zinc will do.
Ruby and Maroon
Preparation of silver:
Nitric acid.......... 1 ounce
Water.............. 1 ounce
Dissolve the silver till saturated, then put a plate of copper in the solution to precipitate the silver in a metallic state. Wash well with water to remove the acetate of copper.
Flux for Above
Six dwts. white lead to 1 ounce prepared silver.
Tin Solution
Put the acid (aqua regia) in a bottle, add tin in small quantities until it becomes a dark-red color; let it stand about 4 days before use. When the acid becomes saturated it will turn red at the bottom of the bottle, then shake it up and add more tin; let it stand and it will become clear.
Aqua Regia
Nitric acid.......... 2 parts
Muriatic acid........ 1 part
Dissolve grain gold in the aqua regia so as to make a saturated solution. Take a basin and fill it 3 parts full of water; drop the solution of gold into it till it becomes an amber color. Into this solution of gold gradually drop the solution of tin, until the precipitate is complete. Wash the precipitate until the water becomes tasteless, then dry slowly and flux as follows:
Flux No. 1
Borax.............. 3 parts
Red lead............ 3 parts
Flint............... 2 parts
Run down.
Rose Mixture
Purple of Cassius.... 1 ounce
Flux No. 1.......... 6 ounces
Prepared silver...... 3 dwts.
Flint glass.......... 2 ounces
Grind.
Purple Mixture
Purple of Cassius .... 1 ounce
Flux No. 8 (see page 307) 2.5 ounces
Flint glass.......... 2 ounces
Grind.
Ruby
Purple mixture...... 2.5 parts
Rose mixture........ l.5 parts
Grind.
Maroon
Rose mixture........ 1 part
Purple mixture...... 2 Darts
Grind.
Black—Extra quality
Red oxide of iron .... 12 parts
Carbonate of cobalt.. 12 parts Oxide of cobalt...... 1 part
Black flux A (see next
formula).......... 80 parts
Glost fire.
Black Flux A
Red lead............ 3 parts
Calcined borax...... 0.5 part
Lynn sand.......... 1 part
Run down.
Black No. 2
Oxide of copper..... 1 part
Carbonate of cobalt.. 0.5 part Flux No. 8 (see next column)............ 4 parts
Grind only.
Enamel White
Arsenic............. 2.5 parts
Niter............... 1.5 parts
Borax.............. 4 parts
Flint............... 16 parts
Glass.............. 16 parts
Red lead............ 32 parts
Glost fire.
Turquoise
Calcined copper..... 5 parts
Whiting............ 5 parts
Phosphate of soda... . 8 parts
Oxide of zinc........ 16 parts
Soda crystals........ 4 parts
Magnesia........... 2 parts
Red lead............ 8 parts
Flux T (see next formula) ............ 52 parts
Glost fire.
Flux T
Borax.............. 2 parts
Sand.............,. 1 part
Run down.
Orange
Orange U. G........ 1 part
Flux No. 8 (see next column)........... 3 parts
Grind only.
Blue Green
Flint glass.......... 8 parts
Enamel white....... 25 parts
Borax.............. 8 parts
Red lead............ 24 parts
Flint........... 6 parts
Oxide of copper..... 2.5 parts
Glost heat.
Coral Red
Chromate of potash.. 1 part
Sugar of lead........ 1.5 parts
Dissolve in hot water, then dry. Take 1 part of above, 3 parts flux for coral. Grind.
Flux for Coral
Red lead............ 4.5 parts
Flint............... l.5 parts
Flint glass.......... 1.5 parts
Run down.
Turquoise
Oxide of copper..... 5 parts
Borax.............. 10 parts
Flint............... 12 parts
Enamel white....... 14 parts
Red lead............ 40 parts
Glost fire.
Flux No. 8
Red lead............ 6 parts
Borax.............. 4 parts
Flint............... 2 parts
Run down.
Russian Green
Malachite green..... 10 parts
Enamel yellow....... 5 parts
Majolica white...... 5 parts
Flux No. 8 (see previous formula)...... 2 parts
Grind only.
Amber
Oxide of uranium ... 1 part Coral flux........... 8 parts
Grind only.
Gordon Green
Yellow U. G........ 5 parts
Flux No. 8 (see above) 15 parts Malachite green..... 10 parts
Grind only.
Celadon
Enamel light blue ... 1 part
Malachite green..... 1 part
Flux No. 8 (see above) 15 parts
Grind only.
Red Brown
Sulphate of iron, fired 1 part Flux No. 8 (see above) 3 parts
Grind only.
Matt Blue
Flux No. 8 (see above) 10.5 parts
Oxide of zinc........ 5 parts
Oxide of cobalt...... 4 parts
Glost fire, then take
Of above base....... 1 part
Flux No. 8 (see above) 1 and 1/8 parts
Grind only.
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