Soap Mottled

Derbyshire s Patent Exxxbroca-tioxL for Preventing Sea-Sickness. Boil 2 ounces opium, 2 drachms extract of hen-bano, 10 grains macc, and 2 ounces mottled soap, in 3 pints of water for 4 hour. TYbcn cold, add 1 quart of rectified spirit and 3 drachms spirit of ammonia. 

USE As a pigment in calico printing, wall paper, mottled soap bluing in laundry use for coloring tiles, cements, rub -ber, bnt is now largely replaced by coat tar dyes as a color in food. 

Bone-grease is supplied by bone-boilers, and forms a useful soap material for mottled soaps ... 

Kitchen-etuff, as prepared by the Btuff-melters, is a very useful material for mottled soaps, and is largely used by the London soap-makers for this purpose. Being the produoe of Mtchen waste it contains many difierent kinds of fatty matter, hut after its separation from the more solid particles, as gristle, rind, bones, fibrin, etc., by pressure, it forms an uniform fatty mass of good consistency, and oontainB a considerable proportion of stearine, whioh renders it well suited to the manufacture of a curd soap such as the London mottled soap. 

London Mottled Soap is generally made from melted kitchen stuff, bone grease, cheap tallow, and any inferior fatty matter that will prove serviceable. The leys are ade from crude soda ash, termed black ashy the impurities in which give the mottled or marbled strike," for which this variety of soap is famed. The goods, as the fatty materials are called, are first put into the pan, when the first dose of ley, at sp. gr. 1 050, is run in, after which the fire is made up beneath the pan, and the materials brought to a steady boil. To assist the combination of the tty substances with the ley, a workman constantly... 

Wh.en mottled soap is ready for framing, it is in the form of a thick, gelatinous mass, interspersed with ley and in thia condition it is ladled out into large pails and... 

The fatty matters, concentrated soda leys, and lime liquor are now added to the melted soap in such proportions that the fatty matters will become duly saponmed, and that the soap produced may be of the required description. The whole are then boiled in the usual way. The proportions of fatly matter, concentrated leys, and lime liquor may be varied according to the character of soap required. The following proportions are, however, recommended —Ordinary fitted soap, or curd soap, 10 tons fatty matters, 4 tons soda leys, prepared as above, 4 tons lime liquor, 6J tons, To produce a mottled soap be adds a certain quantity of ultramarine, oxide of manganese, or other suitable pigment, previously mixed with water, and the whole are then boiled together for half an hour, when the soap is ready for cleansing in the usual way. 

Enrten s ProcesB.-—In tMs process caustic potash, is added to caustic soda in the manufacture of soaps. For makiug mottled soap, tallow bone fat, or bleached palm-oil is boiled with ley and converted into a hard soap. The soap is then allowed to remain in the pan from three to six hours, so that the ley may settle. In the meantime a second pan is charged with cocoa-nut oil, and aley composed of 3 parts caustic soda and 1 part potash added, and when the mass is turning into soap the former soap is added to it, and the two soaps boiled together until sufficiently hard, when the soap thus formed is to be put into frames as usual. It is said that soap thus made has a beautifully mottled appearance, lathers freely, and has a smooth surface. 

Blue and Grey Mottled Soaps.—These are silicated or liquored soaps in which the natural mottling, due to the impure materials used in the early days of soap-making, is imitated by artificial mottling, and are, consequently, entirely different to curd mottled soaps. 

The materials employed in making mottled soap comprise bleached palm oil, tallow, bone fat, cocoa-nut oil, palm-kernel oil, cotton-seed oil, and, in some instances, rosin. 

When this mottling condition has been obtained, the colouring matter, which would be ultramarine for the blue mottled and manganese dioxide for the grey mottled soap (3-4 lb. ultramarine or 1-3 lb. 

D raming,—The object of framing is to allow the soap to solidify into blocks. The frames intended for mottled soaps, which require slow cooling, are constructed of wood, often with a well in the base to allow excess of lye to accumulate—for other soaps, iron frames are in general use. The frame manufactured by H. D. Morgan of Liverpool is shown in Pig. 9. 

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