Morocco. Flexible work, as a rule, has blind lines, a broad and a narrow one, worked close to the bands. Damp the back with a sponge and clean water, and work the moisture evenly into the leather with a hard clean brush. Take a pallet of a size suitable to the book, warm it over the stove, and work it firmly over the back. As the leather dries, make the pallet hotter; this will generally be found sufficient to produce the required dark lines. Sometimes it will be necessary to damp the different places two or three times in order to get the proper colour in the blind tooling.
The tools may have a tendency to stick to the leather and possibly burn it. To obviate this, take 1 1 ⁄ 4 oz. of white wax and 1 oz. of deer fat or lard, place them in a pipkin over a fire or in a warm place, so that they may be well mixed together; when mixed allow them to cool. Rub some of this mixture upon the rough or fleshy side of a piece of waste morocco, and when working any tools in blind, rub them occasionally over the prepared surface. This mixture will be found of great service in getting the tools to slip or come away from the leather in working. Lard alone is sometimes used, but this mixture will be found of greater service to any finisher, and the advantage of adding the wax will be apparent.
The lines impressed on the back must now have their gloss given to them. This is done by giggering the pallets over them. Make the pallet rather hot, rub it over the greased piece of leather, and work it backwards and forwards in the impression previously made. Great care must be taken that the pallet be kept steadily in the impressions already made, or they will be doubled. The back is now ready for lettering. This will be found further on, classed under gold work. |125|
To blind tool the side of a book it must be marked with a folder and straight edge, according to the pattern to be produced, and as a guide for the rolls and tools to be used. These lines form the ground plan for any design that has to be worked. Damp the whole of the side with a sponge, and brush it as before directed; then work the fillets along the lines marked. Run them over the same line two or three times. When dry, make the fillet immovable by driving a wooden wedge between the roll and fork, and gigger it backwards and forwards to produce the gloss. If tools are to be worked, make them slightly warm, and as the leather dries make the tool hotter and hotter. This must be repeated as often as is necessary, until the desired depth of colour and gloss is obtained. In using a roll that has a running or continuous pattern, a mark should be made upon the side with a file, at the exact point that first comes in contact with the leather, so that the same flower, scroll, or other design, may always fall in the same place in the repeated workings. It is impossible for a roll to be cut so exactly that it may be worked from any point in the circumference without doubling the design. All blind work is done in the same manner, whether in using a small or a large tool, viz., the leather must be damped and repeatedly worked until the depth of colour is obtained. It is then allowed to dry, and re-worked to produce the gloss. The beauty of blind work consists in making the whole of the finishing of one uniform colour, in other words, avoiding the fault of having any portion of the work of lighter tint than the rest.
Gold Work is far more complicated than blind or antique work, so that it will be better if one practises upon some spare pieces of roan, calf, or morocco before one attempts to finish a book. Gold work is not more difficult than blind tooling, it is only more complicated. The |126| different kinds of leather require such different degrees of heat, that what would fail to make the gold adhere upon one leather would burn through another. The various colours each require their different degrees of heat; as a rule, light fancy colours require less heat than dark ones. The finisher has not only to contend with these difficulties, but he must also become an adept in handling the gold leaf and in using the proper medium by which the gold is made to adhere to the leather. This medium is used in two ways—wet and dry. The wet is used for leather, the dry for velvet, satin, silk, and paper.
The wet medium is again divided into two classes, one for non-porous and another for porous leather. Morocco is the principal of the non-porous leathers, with roan and all other imitation morocco.
The porous varieties consist of calf of all kinds, russia, and sheep.
The non-porous leathers need only be washed with thin paste-water or vinegar, and glaired once; but if the glaire be thin or weak it will be necessary to give them a second coat.
The porous varieties must be paste-washed carefully, sized all over very evenly, and glaired once or twice; care being taken that the size and glaire be laid on as evenly as possible.
All this, although apparently so simple, must be well kept in mind, because the great difficulty that apprentices have to contend with is, that they do not know the proper medium for the various leathers, and one book may be prepared too much, while another may have a deficiency, and as a consequence, one book will be spoilt by the preparation cracking, and the gold not adhere to the other. By following the directions here given the finisher will find that his gold will adhere without much trouble, beyond the practice necessary in becoming accustomed to an accurate use of the various tools. |127|