COLOURING LINEN YARN FOR CARPETS.
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be bleached by taking it first through a warm bath containing a weak solutionof chloride of lime, and then rinsing in fresh water. The yarn will still havea yellow appearance, but it will be bleached enough for the foregoing colours.
Yellow.
If there should be a variety of colours to prepare, it is better to commencewith the yellow.
To 50 lbs. of yarn, bleached, boil for fifteen minutes—
1 lb. of flavine,
5 lbs. of alum,
4 lbs. of muriate of tin,*
2 ozs. of tin crystals.
Cool the dye to 170° F.; enter the yarn on poles, and turn it swiftly a fewtimes; then slowly for twenty minutes. Take the yarn out, rinse in freshwater, and dry.
Green.
To 50 lbs. of linen yarn add to the above yellow dye—
5 lbs. of alum,
2 lbs. of muriate of tin,
2 ozs. of tin crystals,
4 ozs. of flavine.
The dye should be thoroughly mixed by boiling for ten minutes. Whencool the bleached yarn is to be entered on poles, handled quickly at first, thenslowly for twenty minutes, taken out and rinsed.
Now prepare a suitable tub with cold water, to which add a solution of1 lb. of extraifl of indigo, and 6 lbs. of alum. The yellow rinsed yarn is nowpassed into this blue-bath, and turned quickly for a few minutes; thenoccasionally for a few hours, or until even, when it will be ready to beswitched and dried, without rinsing.
Red.
To 50 lbs. of bleached yarn boil in the above yellow kettle for a few minutes—5 lbs. of sumach,
1 lb. of flavine,
5 lbs. of alum,
2 ozs. of tin crystals.
Then cool the kettle to 180“ F.; enter the yarn, and handle it as usual forabout fifteen minutes ; then take it out. It is not necessary to rinse it; but
* Muriate of tin, otherwise scarlet spirit, as it is termed by dyers, is used as a mordant(spirit being a technical term for mordant), and the practical recipe for its preparation is asfollows:—
16 lbs. of hydrochloric acid (22 0 B.),
1 lb. of feathered tin,
2 lbs. of water.
The acid is poured into a stone pot, the tin at once added, and dissolved.
tn Crystals are similarly prepared, only a larger quantity of feathered tin is added, theP°t being placed on a sand-bath to facilitate solution, and the solution evaporated to
cr ystallisation.