GROUND-LAYING

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There is probably no feature in the painting of china that gives the student more anxiety than the art of ground-laying.

He is confronted by many difficulties, but when the art is mastered, feels well paid for all his work. The beautiful results are sufficient reward. A perfectly even and lustrous ground is obtained by applying powdered colors over a well padded wash of tinting oil. The results are more satisfactory than a well padded ground made of color mixed with oil before applying.

The best quality of grounding or tinting oil is the first essential. In fact it is upon this, to a great degree, that the success of the work depends. A tinted oil is usually used. Pour into a small dish the desired amount of oil. See that no lumps or bubbles are in it. Then with a clean square tinting brush apply the oil quickly over the surface to be laid with color. It is not necessary that the work should be very carefully done—but care should be taken to see that all the space is covered. Have ready for use two medium soft pads, free from lint. Pad the oil over and over again with one pad until it looks like a smooth soft tint, then repeat with the second pad. This second padding may not be necessary, but it cannot do any harm and it certainly will improve the smoothness of the oil. Here the decorator is cautioned to see that the oil is perfectly even, free from spots and scratches, as these faults would be noticeable after the color is applied. It is best to wipe off all the oil and make another application instead of trying to correct a fault on the padded oil.

After the oiled china has stood for half an hour or so, the powdered colors can be applied.

Have plenty of color on a plate and, holding the piece of china over it, take up with a piece of soft cotton as much color as it will hold, and drop it over the part of the china to which the oil has been applied. Care should be taken to hold the piece flat that is to be decorated, for if it is held upright, the color will naturally drop off. A good amount of color should be kept on the cotton while applying tint. After the oil is covered, dust with clean cotton several times. If any superfluous color remains, remove it with a soft brush.

Now turn to our chapter of cutting out. If anything of this nature needs to be done, now is the time to do it.

After firing this ground should be heavy and have a strong glaze.

By adding turpentine to the oil and mixing well a medium, heavy or light ground can be obtained. By the use of turpentine the oil is made lighter and less color adheres to it.

Sometimes the powder colors will be found hardened from packing in the vials and come out in hard pieces. Pulverize these pieces well and sift them through a cheese cloth if necessary. Various colors can be blended together beautifully on grounds by applying the lighter tint first and carrying it over slightly onto the part which is to be tinted with dark colors. In applying the darker colors use sparingly as it approaches the lighter tint and avoid leaving a sharp line. Blend the two colors together until the combination is of very smooth and soft appearance.

The more turpentine mixed with tinting oil the thinner will be the coat of powder adhering to it, naturally a lighter ground is the result. For purple, violet color, maroons and pinks use light oil for grounds. It is difficult to remedy a scratch or imperfection on dusted grounds. If it is done with moist color and brush, bear in mind that dry powder applications fire much darker than colors applied moist with brush, and gauge the color accordingly.

For a brilliant effect, dust the unfired background with a flux or glaze. For warm colors such as browns, red and flesh tones, this is not necessary, but it will improve dark greens and blues. It is unsafe to try to paint over dry unfired grounds. To lay grounds in Matt colors, proceed in this manner. Use a little turpentine with the oil for Matt color dry grounds. These colors are opaque and it will not be noticeable if there is a slight variation in thickness in applying them. It is advisable, however, to have just a medium application.

                                                                                                                                                                                                                                                                                                           

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