Young's Demonstrative Translation of Scientific Secrets · Chapter 41. Oriental Painting (4)
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This may be formed by mixing intimately eight parts of common salt, and three parts of the black oxide of manganese in powder; put this mixture into a retort, then pour four parts of sulphuric acid, diluted with an equal weight of water, and afterwards allowed to cool upon the salt and manganese; the gas will then be immediately liberated, and the operation may be quickened by a moderate heat. A tube leading from the mouth of the retort must be passed into the resinous solution, where the gas will be absorbed, and the lac precipitated.
These may be made by using ant colour in fine powder with the varnish, in the following manner: rub up the colour with a little alcohol or spirits of turpentine till it becomes perfectly smooth, then put it into the cup with the varnish. Shell-lac varnish is the best spirit varnish we have, and may be made any colour by the above process.
The English method of preparing the colour in size, which serves as the ground on which the gold is laid, is, to grind together some red oxide of lead with the thickest drying oil that can be procured, the older the better. To make it work freely, it is mixed, before being used, with a little oil of turpentine, till it is brought to a proper consistence. The above four receipts are used in japanning.
If it be woodwork you are about to japan, it must be prepared with size, and some coarse material mixed with it to fill up and harden the grain of the wood, (such as may best suit the colour to be laid on,) which must be rubbed smooth with glass paper when dry. In cases of accident, it is seldom necessary to resize the damaged places, unless they are considerable.
Be very careful in japanning, to grind your colours smooth in spirits of turpentine, then add a small quantity of turpentine and spirit varnish, lay it carefully on with a camel hair brush, and varnish it with brown or white varnish, according to the colour.
Flake white, red lead, vermillion, lake, Prussian blue, patent yellow, orpiment, orchres, verditers, vandyke brown, umber, lamp-black, and siennas raw and burnt. With these you may match almost any colour in general use in japanning. For a black japan, it will be found sufficient to mix a little gold-size with lamp-black; this will bear a good gloss, without requiring to be varnished afterwards.
Take 1 gallon of good linseed oil, and 1/2 lb. of umber; boil them together till the oil becomes very brown and thick, then strain it through a coarse cloth, and set it again to boil; in which state it must be continued till it acquires a consistence resembling that of pitch; it will then be fit for use.
Having thus prepared the varnish or japan, clean well the substance which is to be japanned; then lay vermillion, tempered with shell-lac varnish, or with drying oil, very thinly diluted with oil of turpentine, on the places intended to imitate the more transparent parts of the tortoise-shell; when the vermillion is dry, brush the whole over with black varnish, tempered to a due consistence with the oil of turpentine. When set and firm, put the work into a stove, where it may undergo a very strong heat, which must be continued a considerable time; if even three weeks or a month it will be the better. This tortoise-shell ground it not less valuable for its great hardness, and enduring to be made hotter than boiling water without damage, than for the superior beauty and brilliancy of its appearance.
192. TO MAKE CLOTH, SILK &c., WATER-PROOF
Mix equal quantities of alum and acetate of lead, and dissolve the mixture in 1-1/2 gallons of boiling water. When the solution has cooled, remove the supernatent liquid from the sediment, which consists of sulphate of lead, and is ready for use. Any article of dress, when well saturated in this liquid, and allowed to dry slowly, bears the action of boiling water, and does not permit it to pass through, although steam and air penetrate if freely.
Dissolve 1 oz. of common salt in 1 quart of water, bring to a boil, and put in 1-1/4 lbs. gum shell-lac; when it shall have dissolved, pour into cold water, and work like wax; make into small sticks. This will make crockery as firm as a rock. Directions: Warm the stick, apply it to the broken edges, then heat the edges, place them together and hold for a minute, and they are firm.
194. A CEMENT FOR CHINA, GLASS-WARE, &c.
Take a thick mucilage of gum arabic, and stir into it plaster of Paris to form a thick paste, apply to the edges with a brush, and press firmly together and confine them two or three days, and you will be astonished at their firmness.
The juice of loveage or smellage mixed with any kind of bait, or a few drops of the oil of rhodium; India cockle, also, is sometimes mixed with flour dough, and sprinkled on the surface of still water. This intoxicates the fish, and makes him turn up on the top of the water, when he is taken and put in a tub of fresh water until he revives, when all is right; he may be eaten without fear; but this will destroy many fish.
Take the juice of morella or tame cherries, and to each quart put 3 quarts of water, and 4 lbs. of coarse brown sugar; let them ferment, and skim until worked clear; then draw off, avoiding the sediment at the bottom, bung up, or bottle, which is best for all wines, letting the bottles lie always on the side, either for wines or beers.
No. 1 Crystalised nitrate of silver, 1 drachm; soft water, 1 oz. No. 2 Sulphide (sulphuret is the same) of potassium, 1 drachm; soft water, 1 oz.; wash the beard or hair with soap to remove oil, dry with a towel a little then apply No. 1, and directly after it No. 2, for a few minutes, alternately, using different tooth brushes for each No. Clear days are best on which to apply it. As soon as dry, wash out well with soap. Keep it from shirt bosoms and face, especially No. 1, as it will make the face sore as well as colour it. If you do get it on the skin, cyanide (cyanuret is the same) of potassium, 1 drachm, to 2 ozs. of water, will take it off. This last is poison, however, and should not touch sore places, nor be left where children may get at it.
Purify melted mutton tallow by throwing in powdered quicklime, then add 2 parts of wax to 1 of tallow. A most beautiful article of candle, resembling wax, will be produced by the mixture. Dip the wicks in lime-water and saltpetre on making.
Take of ground Brazil, 1 lb.; water, 3 quarts; cochineal, 1/2 oz.; boil the Brazil in the water for an hour; then strain, and add the cochineal; then boil it gently for half-an-hour, when it will be fit for use. If you wish a scarlet tint, boil an ounce of saffron in a quart of water, and pass over the work before you stain it. The article must be very clean, and of firwood, or the best sycamore. When varnished over this stain it is most elegant.
200. A PURPLE STAIN FOR VIOLINS, &c.
Take of chipped logwood, 1 lb.; of water, 3 quarts; of pearl-ash, 4 ozs.; of indigo, pounded, 2 ozs.; put the logwood in the water, boil well for an hour, then add the pearl-ash and indigo, and when dissolved, you will have a beautiful purple.
201. A BLUE STAIN FOR VIOLINS, &c.
Take of oil of vitriol in a glass bottle, 1 lb.; put into it 4 ozs. of indigo, and precede as directed in dyeing.
202. GREEN STAIN FOR VIOLINS, &c.
Take of strong vinegar, 3 pints; of best verdigris, 4 ozs., ground fine; of sap green, 1/2 oz.; of indigo, 1/2 oz.; mix all together.
The materials should be perfectly clean; soap should be rinsed out in soft water; the article should be entirely wetted, or it will spot; light colours should be steeped in brass, tin or earthen; and, if set at all, should be set with alum. Dark colours should be boiled in iron, and set with copperas; too much copperas rots the thread.
Get the blue composition; it may be had at the druggist's, or clothier's, for a shilling an ounce. If the articles are not white, the old colours should all be discharged by soap or a strong solution of tartaric acid, then rinsed; 12 or 16 drops of the composition, stirred into a quart-bowl of warm water, and strained if settlings are seen, will dye a great many articles. If you want a deeper colour, add a few drops more of the composition. If you wish to colour cotton goods, put in pounded chalk to destroy the acid, which is very destructive to all cotton; let it stand until the effervescence subsides, and then it may be safely used for cotton or silk.
Take a little pinch of archil, and put some boiling-hot water upon it, add to it a very little lump of pear-lash. Shades may be altered by pear-lash, common slat, or wine.
Logwood and cider, boiled together in iron, water being added for the evaporation, makes a good durable black. Rusty nails or any bits of rusty iron, boiled in vinegar, with a small piece of copperas, will also dye black; so will ink powder, if boiled with vinegar. In all cases, black must be set with copperas.
Peach leaves, bark scraped from the barberry bush, or saffron, steeped in water, and set with alum, will colour a bright lemon, drop in a little gum-arabic to make the articles stiff.
Soak logwood chips in soft water until the strength is out, then add a teaspoonful of alum to a quart of the liquid; if this is not bright enough, add more alum, rinse and dry. When the dye is exhausted, it will colour a fine lilac.
Tea grounds, boiled in iron vessels, set with copperas, makes a good slate colour. To produce a light slate colour, boil white maple bark in clear water, with a little alum. The bark should be boiled in brass utensils. The goods should be boiled in it, and then hung where they will drain and dry.
Dip the cloth in a solution of alkaline or metallic salt, then in a cochineal dye, and let it remain some time, and it will come out permanently coloured. Another method: 1/2 lb. of madder, 1/2 oz. of cream tartar, and 1 oz. of marine acid to 1 lb. of cloth; put it all together, and bring the dye to a scalding heat; put in your materials, and they will be coloured in ten minutes. The dye must be only scalding hot. Rinse your goods in cold water as soon as they come from the dye.
For 1 lb. of yard or cloth, take 3 ozs. of madder; 3 ozs. of alum; 1 oz. of cream tartar; prepare a brass kettle with two gallons of water, and bring the liquor to a steady heat, then add your alum and tartar, and bring it to a boil; put in your cloth, and boil it two hours; take it out, and rinse it in cold water; empty your kettle, and fill it with as much water as before; then add your madder; rub it in fine in the water before your cloth is in. When your dye is as warm as you can bear your hand in, then put in your cloth, and let it lie one hour, and keep a steady heat; keep it in motion constantly, then bring it to a boil fifteen minutes, then air and rinse it. If your goods are new, use 4 ozs. of madder to a lb.
If you wish to colour green, have your cloth as free as possible from the old colour, clean, and rinsed; and, in the first place, colour it deep yellow. Fustic, boiled in soft water, makes the strongest and brightest yellow dye; but saffron, barberry-bush, peach-leaves, or onion-skins, will answer pretty well. Next take a bowlful of strong yellow dye, and pour in a great spoonful or more of the blue composition, stir it up well with a clean stick, and dip the articles you have already coloured yellow into it, and they will take a lively grass-green. This is a good plan for old bombazet-curtains, dessert-cloths, old flannel for desk coverings, &c.
Saffron, steeped in earthen and strained, colours a fine straw colour. It makes a delicate or deep shade, according to the strength of the tea. Colouring yellow is described in receipt No. 212. In all these cases a little bit of alum does no harm, and may help to fix the colour. Ribbons, gauze handkerchiefs, &c., are coloured well in this way, especially if they be stiffened by a bit of gum-arabic, dropped in while the stuff is steeping.
Take plum tree sprouts, and boil them an hour or more; add copperas, according to the shade you wish your articles to be. White ribbons take very pretty in this dye.
Boil an ounce of cochineal in a quart of vinegar. This will afford a beautiful purple.
Use a teaspoonful of soda to an ounce of cochineal, and a quart of soft water.
Boil 1 lb. of cloth an hour in alum water, pound 3/4 of an oz. of cochineal and mix 1 oz. of cream of tartar; put in a brass kettle, with water, enough to cover the cloth; when about blood hot, put in your cloth, stir constantly, and boil about fifteen minutes.
Use copperas in a madder-dye, instead of madder compound.
The simplest way is to take a pailful of lye, to which put a piece of copperas half as big as a hen's egg; boil in a copper or tin kettle.
Balm blossoms, steeped in water, colour a pretty rose colour. This answers very well for the linings of children's bonnets, for ribbons, &c.
Boil them in strong logwood liquor 3 or 4 hours, occasionally adding green copperas, and taking the bonnets out to cool in the air, and this must be continued for some hours. Let the bonnets remain in the liquor all night, and the next morning take them out, dry them in the air, and brush them with a soft brush. Lastly, rub them inside and out with a sponge moistened with oil, and then send them to be blocked. Hats are done in the same way.
Boil 4 oz. of logwood, and 2 oz. of roche-alum, in 3 pints of soft water, till half wasted; let it stand to be cold after straining. If they be old gloves let them be mended; then do them over with a brush, and when dry repeat it. Twice is sufficient unless the colour is to be very dark; when dry, rub off the loose dye with a coarse cloth; beat up the white of an egg, and with a sponge, rub it over the leather. The dye will stain the hands, but wetting them with vinegar before they are washed will take it off.
223. TO BLEACH STRAW HATS, &c.
Straw hats and bonnets are bleached by putting them, previously washed in pure water, in a box with burning sulphur; the fumes which arise unite with the water on the bonnets, and the sulphurous acid, thus formed, bleaches them.
To 8 gallons of water add 4 ozs. of copperas; immerse for 1 hour and take out and rinse; boil 2 lbs. logwood chips, or 1/2 lb. of extract; 1/2 lb. of fustic; and for white silks, 1/2 lb. of nicwood; dissolve 2 lbs. of good bar-soap in a gallon of water; mix all the liquids together, and then add the soap, having just enough to cover the silk; stir briskly until a good lather is formed, then immerse the silk and handle it lively. The dye should be as warm as the hand will bear; dry quickly and without rinsing. The above is enough for 10 yards or one dress.