INDIGO EFFECTS.

585

Fifth Style.—Indigo Effects.

The combinations of colour produced by this style are—(1). Blue and white.(2). Blue and yellow, or orange. (3). Blue, two shades. (4). Blue, twoshades, and white. (5). Blue, two shades, white, yellow, or orange. (6). Darkblue and green. (7). Blue, two shades, and yellow.

The first of these varieties is produced by printing upon the cloth certain

“ reserves,” and then dyeing in the vat to the shade required. The designthen appears in white upon a blue ground.

No. 1. Reserve for Block-work. —

Sulphate of copper . 3 lbs.

Water . 1 gal.

Pipe-clay . 15 lbs.

Beat up with some of the solution, and mix gradually to a smooth paste ;then add—

Gum Senegal water, thick . 1 gal.

Nitrate of copper, at 80° Tw. 1 quart.

No. 2. Reserve (Machine).

Sulphate of copper. 25 lbs.

Water. 1 gal.

Flour . . .. .. 9 lbs.

Dark British gum . 2 „

No. 3. Reserve (Machine). —

Sulphate of copper. 5 lbs,

Sugar of lead, white . 2 ,,

Water. 2 gals.

Dissolve, draw off the clear, and thicken with—

Flour . . • 3 '8s.

Pale British gum . 2 „

Cool, and add to every 2 gallons—

Nitrate of copper, at 8o° Tw. 4 pint.

No. 4. Reserve (Machine). —

Sulphate of copper. 8 lbs.

Boiling water . 2 gals.

Sugar of lead, white . 4 18s.

Dissolve, let settle, and decant the clear, and to ij gals, of this add—

Flour. 418s.

Pale British gum. 2 ,,

Boil, and add—

Sulphate of zinc . 2 lbs.

The following mixtures serve to resist lighter vat-blues :—

No. 5. Reserve , Mild , for Block .—

British gum, dark.25 lbs.

Water. 15 quarts.

Boil for ten minutes, and add—■

Soft soap

7! lbs.