In areas where the seasons change significantly, the maintenance of furniture is extremely particular. For example, after the volatility, spring and autumn, etc., the climate will change from tide to dry or from dry to wet. The cabinet door should be opened and the drawers should be opened in time to make the furniture inside and outside synchronize with the wind, so as to avoid warping due to too dry or too wet.
There is a saying that is good: "The cold table can't make hot tea." This sentence can be said to conform to the "wood" characteristics, because the ambient temperature of the stored furniture can not be quenched and heated. For example, furniture with stone faces cannot be placed outdoors in the winter, nor can it be placed in the sun in the summer.
In the south, the climate is relatively humid, and in order to prevent moisture, the surface of the furniture is basically covered with a thin layer of lacquer. Some of the most humid climates are painted inside and outside the furniture, protected inside and out. Painting is difficult for the average person, so you can ask a professional to do it. However, the hardwood furniture in the north is not painted, only a layer of wax on the surface. Because the northern climate is dry, there is no need to paint, and after the wax is burned, the furniture will be repeatedly rubbed in the process of use, and the surface wax will seep into the wood, oxidize and produce a slurry. The surface of the furniture that has been formed into a pulp can not be boiled by boiling water, nor can it be stained with a very soluble liquid, such as gasoline, which would damage the patina.
Maintenance desktop
The oil on the table can be wiped with alcohol. If there is no alcohol, it can be wiped with high-alcohol. This is a common method used by older Beijingers. Furniture with stone surface is like a table, screen, etc. It can't be placed outdoors in winter, and it can't be placed in the sun in summer to avoid cracking.
Coping season
In areas where the seasons change significantly, the maintenance of furniture is extremely particular. For example, after the volatility, spring and autumn, etc., the climate will change from tide to dry or from dry to wet. The cabinet door should be opened and the drawers should be opened in time to make the furniture inside and outside synchronize with the wind, so as to avoid warping due to too dry or too wet.
However, when the wind is too cold, the furniture should not be exposed to the sun or the tuyere, and should be placed in a cool, dry place. Because excessive sunlight can damage the material of wooden furniture and cause cracking or warping of the wood, it is necessary to ensure that the ancient furniture is not exposed to sunlight while maintaining its moderate dryness.
Prevent the case from falling
There is a case called a shelf, which is very long, thick and heavy. Its case is not integral with the leg, but is detachable. The north is commonly known as "a piece of jade", and the south is called "stalk plate". It is popular in the late Qing Dynasty. People generally use it to put a cumbersome self-timer or mountain bonsai.
Because the items on the case are very bulky, the pressure on the case is very high. The two ends of the case are supported by the leg of the case, so it is not too difficult, but the middle of the case is suspended. If there is a long time, there is a danger of collapse. In order to avoid this phenomenon, the case should be turned over every other year or half a year, and the slightly curved face will be restored by changing the direction of the force.
Adapt to wood
Furniture maintenance should conform to the wood. Summer is coming, it often rains, furniture should be placed in the window, so as not to get wet in the rainy weather, damage the surface, damage the cockroach. In the winter, every household in the north is heated, and people are very comfortable from the heating, but the furniture is far away from the heating, so as to avoid excessive shrinkage of the wood due to excessive temperature, resulting in cracking. Many furniture are also afraid of the wind, especially the furniture with the face, such as tables, cabinets and other furniture, affected by the "dry shrinkage and swelling", blowing at the tuyere for a long time is easy to crack, warp.
If the furniture is used for a long time, the gloss will gradually disappear and affect the appearance. It should be noted that waxing should be carried out after the dust has been completely removed, otherwise wax spots will form or scratches will occur. When waxing, it is necessary to master the principle of shallow to deep, from point to surface, step by step, and evenly wax.
Talc (Talc) is a layered silicate which is a hydrate.
Theory of MgO style chemical formula 3, 4 - SiO2, H2O, and the theory of chemical composition as follows: 31.68% MgO style SiO2 H2O 63.47% to 4.75%, the natural quality of pure talc ore are very few, most associated with other mineral impurities, common associated minerals include chlorite, serpentine, magnesite, tremolite, dolomite, etc.
Talc is often white, light green, microstrip pink, light grey, with impurities the more the color is deeper, even dark grey, black.
Monoclinic crystal system, ore presents flaky, fibrous and dense.
Pearly luster or oily luster, the heating effect of the talc are substantially heated, lose adsorbed water during 120 ~ 200 ℃, 600 ℃ when begin to lose part of the structure of water, until 1050 when the structure all the water out.
The best way to identify talc is to conduct X-ray diffraction analysis or thermal analysis.
Talc
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