Take 1 gallon of water; dissolve in it,
44 ounces of binarseniate of potash, and
12 ounces of corrosive sublimate; thicken with
3 libs. of gum,
6 libs. of pipe-clay,
16 oz. of oil.
To explain fully the manipulation of the lazulite style, we shall
suppose that the calicoes are printed with the following reserves, taken
in their order:--
1. Black reserve, No. 1. above.
2. Full red reserve, No. 3.
3. Light red reserve, No. 4.
4. Neutral reserve, No. 7.
Four days after printing-on these reserves, the goods must be twice
dipped in the blue vat, ten minutes in and ten minutes out each time;
but more dips may be given according to the desired depth of shade. The
cloth must be afterwards rinsed in running water for half an hour. The
next process is to remove the paste; which is done by wincing the goods
in a bran bath, lowered to 150°, during twenty minutes. They are then
winced for five minutes in a bath of water slightly sharpened with
vinegar. When well cleansed, they are ready for the madder bath. The
_lapis_ goods are finally cleared in a bran bath, by exposure on the
grass, and a soap boil.
The lazulite style is susceptible of many modifications.