Part 6 (1/1)
The cloth stain for one hour, followed by pearl ash for half-an-hour, gives a bright purple; if iron is used instead of pearl ash a sombre purple results; if you add alkalies to the stain instead of sulphuric acid you obtain purple reds Fifteen ives full red purples deepening to ood warwood stain, washi+ng, and one or two seconds in pearl ash, and instantly washi+ng again gives a deep red brown, and if one minute in alum instead of pearl ash a deep purple brown
Blue stains o, 1/2 drachrains of carbonate of potash added
One to twoyields a delicate turquoise, five ht full blue; and ten to fifteen a considerable depth of colour Blues are rather fugitive Staining with saffron or fustic for five o for the sao for ten reens from fustic are more permanent and yellower The sequence of the stains also affects the green, the last used having most effect Blue stain first for fifteen reen used for table knife handles--a colour which may also be obtained by iris in dilute vinegar and water
Before applying these stains the ivoryand water and washi+ng quite clean Next immerse it for three to five minutes in acid cold water (1 part muriatic acid to 40 or 50 of water, or the saelatine from the surface of the ivory Extre is ers, but res, one pair to each colour After treating with the acid, place the ivory in clean, cold, boiled water for some minutes Water stains are used, but strained or filtered and war the surface of the ivory Increasing the tees the colour The best te Fahr
When sufficiently stained the ivory is well rinsed in water, and if there are two colours on top of each other alell rinsed before going into the second bath After thoroughly drying, repolish by friction, first with a few drops of oil on a soft clean rag; continue with a dry clean rag till the oil disappears
An old Italian receipt for polishi+ng wood blackened to imitate ebony runs thus:--”Is the wood to be polished with burnt pumice stone? Rub the work carefully with canvas and this powder, then wash the piece with Dutch lime water so that it may be more beautifully polished Then it is to be cleaned with another cloth Then the rind of a poranate must be steeped, and the wood smeared over with it and set to dry, but in the shade”