2. The pieces are bucked or boiled in milk of lime[215] for 12 to 14 hours,[216] followed by rinsing or cleansing in the washing-machine.
[215] The common proportions are about 1 lb. of quick-lime slaked and reduced to milk, with 2 galls. of water, for every 14 or 15 lbs. of cloth.
[216] This is done in a large iron boiler furnished with a perforated false bottom of wood, and technically termed a ‘kier.’
3. They are soured in water acidulated with hydrochloric acid,[217] and again washed; similar machines being employed for each.
[217] This dilute acid or acidulated water has usually the sp. gr. 1·010 or 2° Twaddle.
4. They are bucked or boiled for 15 or 16 hours in a solution of resinate of soda,[218] and then washed as before.
[218] Made with about 17 lbs. of soda-ash and 3 lbs. of resin, with water, 50 galls., to every 20 or 21 lbs. of cloth.
5. They are chemicked by being laid in a wooden, stone, or slate cistern, when a solution of chloride of lime[219] is pumped over them, so as to run through the ‘goods’ into a vessel below, from which it is returned on them by continued pumping, so that the cloth lies in it for 1 or 2 hours; it is then washed.
[219] Technically called ‘chemick.’ The strength of the solution is usually of the sp. gr. 1·0025, or 1⁄2° Twaddle.
6. They are bucked or boiled, for 4 or 5 hours, in a solution of 1 lb. of crystallised carbonate of soda, dissolved in 5 galls. of water, to every 35 lbs. of cloth; and washed.