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A practical handbook of dyeing and calico-printing / by William Crookes
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COLOURS ON WOOLLENS.

95

and enter the goods for half an hour, during which time increase the tem-perature to 212°. The madder being a fast colour, the wool must be handledquickly at first, because longer boiling will not remove patches.

GREENS.

Green for Broadcloth.

For ioo lbs. of wool. Dissolve 15 lbs. of alum, 3 lbs. of tartar, 3 lbs. ofmuriate of tin, and 20 lbs. of fustic. The fustic should, of course, be firstboiled in water, to which the other constituents of the kettle maybe added. Thewool should be entered, and the dye raised to slow boiling for about one hour.Remove and cool. Prepare with fresh boiling water 30 lbs. of weld as a bath,to which add 3 lbs. of soda. Cool to 180 0 F., and enter the prepared wool,allowing it to remain for one hour; but the bath must not be brought to theboil. Remove. The wool is now coloured a fine yellow, and is finished withindigo in the blue vat.

This mode of colouring is expensive, but the results are good.

Another Green for Broadcloth.

For 100 lbs. of wool. Colour well in the blue vat. Dissolve 15 lbs. ofalum, 2 lbs. of tartar, 2 lbs. of sulphate of copper, in which bath boil thewool for one hour. Prepare a fresh kettle by boiling 25 lbs. of fustic and8 lbs. of logwood in water. Cool to 180 0 F., and enter the prepared wool,handling well for ten minutes; then increase the temperature to 212° for halfan hour. Remove and cool. The colour may be tested by hand-fulling withstrong soap.

Logwood Green.

This colour is a common one, better suited to coarse cloth. For 100 lbs. ofbroadcloth. Boil the cloth for one hour in a solution of 15 lbs. of alum, 3 lbs.of tartar, 2 lbs. of sulphate of copper. Remove and cool. Boil in fresh waterfor half an hour 15 lbs. of fustic and 10 lbs. of logwood, into which bath, ata temperature of 180°, reel the cloth for one hour, and then expose it to theair. During the airing run off half the liquor, and reduce the temperature to130°. Then add the solution of 2 lbs. of pearl-ash, or of 3 lbs. of soda-ashor 4 pails of urine. Reel the cloth for twenty minutes and wash. If darkershades should be desired, more logwood may be employed.

Chrome Green.

For 100 lbs. of wool. Dissolve 4 lbs. of bichromate of potash, 10 lbs. ofalum, and 2 lbs. of tartar in a kettle of fresh water, in which boil the woolfor one hour. Remove, cool, and rinse. Prepare an infusion of 20 lbs. offustic and 10 lbs. of logwood. Cool to 180°, and enter the prepared wool,boiling for half an hour. Cool, and rinse. This colour darkens in drying andfinishing, and is not very durable.

Green for Yarn.

For 100 lbs. of yarn. Dissolve by boiling 20 lbs. of alum, 8 lbs. of sulphuricacid, 3 lbs. of extradt of indigo, 1 lb. of picric acid. Cool to 180° F., and enterthe yarn, bringing the bath, after quickly handling the wool, to a boil. The