|
|
MARBLING EDGES OR PAPER. French Shell, Marble.-Your trough being places on a firm table or bench of convenient height, with some feet of spare room on either side, you place the pots containing the colours on your right hand and the paper or books to be ![]() FIG. 90.-LARGE FRENCH, OR SHELL MARBLED. marbled on your left ; let there be a small brush in each of your pots of vein colours, and a larger one in your last or body colour. Provide yourself with a small iron rob or bar, about 12in. or 14in. long, and about 1/2in. in thickness ; this you place so as to be able to take up when required in your left hand. Fill your trough to about 1/2in. or 3/4in. from the top with a solution of gum tragacanth and flea seed, as directed, and proceed to mix your colors. To produce the pattern called large brown French, or shell pattern (see Fig. 90) with three vsins, viz., red, yellow, and black), mix together ox gall and water, in the proportion of one-eighth of the former to seven-eighths of the latter; into this put your vein colours, a little at a time, and gently stir the mixture with the brash (but be very careful you do not make it froth by too rapid stirring) until it arrives at the proper consistence, which must be ascertained by sprinkling a little colour on the solution in the trough: if the colour sinks and does not spread out, add a little neat gall; but should it spread too far, mix a little more colour with water only, and put it to that which opens too much. The brown will require more gall, less water, and a very few drops of the best olive oil, which will cause it to form itself in rings, or shells, as it falls on the surface of the solution in the trough. This colour will require to be thicker than the vein colours, and, when thrown or sprinkled on, should drive or force the other colours into the form of veins. By increasing the quantity of gall in the last colour, you may bring the veins to almost any degree of fineness, but there is a point beyond which it is not advisable to go. This you must ascertain by your own judgment. If the brown does not shell enough, but forms in holes, add a few more drops of oil and well mix it; but should you pour in the oil in too great a quantity, it will spoil the effect of the shell altogether, and this you will not be able to counteract except by adding some more colour mixed without any oil. Having, then, all in readiness, first skim the surface of the solution lightly all over, and immediately (for, when you begin, you must move quickly till you have all your colour on) sprinkle on your colours, beginning with the red, next yellow, thirdly black, then your principal or body colours. Go well and equally all over, taking care that you throw as much colour on one part of the surface as another. You then carefully bend the boards of your book level with the. edges, and, holding the leaves together, dip the edges in the size. Withdraw it immediately, and shake or blow off as quickly as possible the size adhering to the edge with the colour, to prevent its running into the book. The tail is next dipped in a similar manner. Before marbling the fore edge, the boards must be laid back and the edge flattened on the press, holding the leaves firmly together at each end, taking the colours with the same precautions, and replacing the boards immediately after dipping. It is necessary, previous to throwing on the colour for each dipping, to clear the size of all the colour left on the surface from the previous one by taking it well off with waste paper. Small French, or Small Shell, Marble.--This pattern (Fig. 91) is produced with precisely the same colour as the preceding. It is called in distinction " small brown." But you now require the iron rod alluded to; hold it firmly in your left hand, and, instead of throwing on the colours as before, knock ![]() FIG. 91.-SMALL FRENCH, OR SMALL SHELL, MARBLE. the handle of your brush, near the stock, against the bar; this causes the colour to fall in small spots. Vein Shell Marble.-—This pattern has three veins and two French colours, or colours that have been mixed as French- that is, with oil in them-the last of which (in this instance purple) is mixed with a little more both of oil and gall than the other, in order to make it flow out over and drive up the other colours. Blue Stormont Marble.--This pattern (Fig. 92), though apparently very simple and easy of execution, is, nevertheless, very difficult to keep in order, in consequence of the speedy evaporation and the chemical changes which are continually taking place among the ingredients with which it is made; it requires great quickness and acute observation on the part of the workman. The same preparation of gum and flea seed is used for this as for the French marble. Mix your red for vein, as usual, with gall and water; the other colour must consist of good indigo alone, without which you cannot produce the proper effect. The indigo being ground, as before directed in the instructions for grinding colours, you proceed to mix it with gall, water, and spirits of turpentine, of which last ingredient it will require a considerable proportion: you will find that when sprinkled upon the timigh it will immediately fly out and then close up again, and will appear to be in constant motion on the surface of the solution. The effect ![]() FIG. 92.-BLUE STORMONT MARBLE. Italian Marble.--This (Fig. 93) is a pretty, though simple, pattern, but requires great cleanliness of working to turn it out well. Tour colours being ground as before directed, you proceed to mix them with gall and water only, as though they were for veins. Tour last colour is white; this requires a greater proportion of gall than the other colours, and a larger brush, as in French. After skimming your size, you proceed by beating or knocking on your colours, as in small French, taking especial care to have the rings of your brushes free from any accumulation of colour, or you will have large ![]() FIG. 93.-ITALIAN MARBLE. West End Marble.--This very neat pattern (Fig. 94) is in every respect similar to the Spanish in the working, only it is not shaded. It consists of two prominent colours besides the veins. One of these is dark and dotted all over with small white spots; the other, which is the top or last colour, is light, and is made by taking a portion of the darker colour and mixing a quantity of white with it, sufficient to bring it to the desired tint; so that, whether it be green, blue, or brown, the same rule may be observed. You proceed to mix ![]() FIG. 94.-WEST END MARBLE. ![]() ![]() FIG. 97.-SPANISH MARBLE ![]() FIG. 98.-NONPAREIL MARBLE. ![]() FIG. 99.-ANTIQUE MARBLE Zebra Marble.-This pattern (Fig. 100) ![]() FIG. 100.-ZEBRA MARBLE Wave Marble.-In this pattern (Fig. 101) ![]() FIG. 101.-WAVE MARBLE ![]() FIG. 102.-DUTCH MARBLE. Dutch Marble.-This is one of the oldest, and, at the same time, one of the most difficult patterns (Pigs. 102 and 103), and is performed by a process very different from any of the preceding. If you examine a sheet attentively, you will perceive that the colours are not scattered here and there in an indiscriminate manner, but follow each other in a kind of regular succession in a diagonal direction across the sheet, the red being the preponderating colour. In order to do this well, your colours must be particularly well ground and of the first quality, and they ought to be mixed a few days before using. You will require a number of little tins or pots, l 1/2in. wide and about the same or 2in. in depth. You will also require two frames the size of the paper you intend using, with wooden pegs in them, slightly tapering, about 1/4in. in thickness, and fixed about 3in. apart, at regular distances over the whole extent of the space required. Your colours will be all the better for this class of work by the addition of a little spirits ![]() FIG. 103.-DUTCH MARBLE. Mix each of your colours in a large jug having a spout, so that you may be able to pour them out of that into the small tins before mentioned. The colours required will be red, yellow, green, blue, and white. The two frames of pegs must be made exactly alike, so that if the pegs in one frame make an impression in a sheet of paper, the pegs in the other fit exactly in the sanies pots. Having mixed the colours in your large pots, and tried them by dropping a little of each on the solution in the trough, you proceed to fill as many of your little pots of colour as you rnav v^nrMw. nnri ai-vnn,pe them in the following order, about Sin. apart, so that the pegs in the above-mentioned frames may drop into the centre of each pot, and, when lifted out (which will require to be done with great caution), will convey one large drop of colour on each peg, with which you gently and evenly touch the surface of the size, taking care that you do not put them too deep, but, at the same time, being quite sure that they all do touch. The tins or pots of colour must be arranged as in the following diagram, about 3in. apart: Y B Y B Y B Y G Y G Y G Y G Y B Y B Y B Y G Y G Y G Y G I have put only the initial letters of the colours to be in this lot of pots, G standing for green, Y for yellow, and B for blue. You must now fill the same number of tins or pots with white, which must be composed of pipeclay ground and prepared as the other colours, and arrange them in precisely the same manner, using the second or duplicate frame of pegs to them. Having arranged all these, you now commence operations by first skimming your size (which must consist of gum tragacanth alone), then well cover the whole surface with red, which you must throw on plentifully with a brush ; you then lift carefully your first frame, consisting of the three colours, giving it a slight rotary motion, so as to stir the colours, which soon settle, but still not so violently as to upset them. Let one drop from each touch the surface of the size upon the red, already thrown on, then quickly take the one with the white and drop that just in the centre of the spots you have already placed on the trough. You next take a rounded piece of tapering wood (a brush handle is as good a thing as any), and pass it up and down through the colours as they are now disposed on your trough, from front to back, at regular distances, till you have gone all over the whole extent of the trough. Then pass your comb through it, from left to right, and lay on your paper. As soon as you have hung it up, pour over it, from a jug with a spout, about a pint of clear water, to wash off all the superfluous loose colour and gum, and make it look clean anA bright, which it will not do without this washing, as the body of colour is so much greater than in other patterns. When dry, it will require sizing before it can be glazed. When curls are required, you must have a third frame, with as many pegs as you require curls in the sheet of paper. The marbled or sprinkled book has next to hare its edges " burnished." This is effected by screwing up each end of the book alternately in the laying-press between backing-boards, and rubbing the burnisher forcibly up and down it. Then the fore edge is done. For this the back need not be knocked up flat, but the fore edge is left curved. Some binders leave the burnishing until after the books are finished, but we regard the present as the best time. The book can afterwards be "capped," or have its edges enveloped in paper if considered desirable or prudent to protect them. We have now gone through the processes for producing the different denominations of marbles for edges or paper very exhaustively, and in such detail that no one can mistake the stage of any process. Continued on this page |