Clean the dirt on the surface of the old oil painting and how to remove the old glazing oil
If it is old paintings, depending on the portrait painting work condition to determine how to cleaning. Usually museum in the reinforcement treatment method is first to work with, the main purpose is to strengthen physical strength oil painting reproductions work itself, to prevent further color layer and base layer peeling off. After reinforcement can be cleaned, usually, strengthening itself with a cleaning process, the process of cleaning with the main material is up to 3% of babies with warm water and warm wholesale oil painting soap solution. General stains, use this liquid is sufficient to clean.
If it is discoloured glazing oil, can clean with alcohol and turpentine mixed suspension, but has the certain risk, should dip in with cotton a fraction of a fraction of the liquid to clean, need a long time. But do be careful, don't wash handmade oil painting light oil reservoir completely through. That is to say don't let the liquid painting YanLiaoCeng itself.
Picture clean for two reasons: one is works custom oil painting for picture easy to occur in the process of dust and stains. 2 it is screen surface oil prone yellow dim light, affect the picture.
Cleaning the general method: first with a soft brush or a feather duster sweep again, wet water with a clean cotton cloth or sponge to wipe. If the picture is dirty, can wash in the water drip into the food (used to neuter soft soap), and then with water to wipe it again. Water was not to damage the new painting almost has no effect, the picture with crack produces the damage effect. Especially rubber soled, rinse the net have to squeeze the water from the cotton cloth to wipe again after. Cleaning in Europe previously masterpieces, turpentine, etc. The water quality is commonly used solvents. Turpentine oil, while on the oil film without dissolving force, can dissolve resin light oil, light oil glazing oil painting works with resin, with turpentine oil after cleaning need to polish.
Oil painting in the preservation process oil painting reproductions inevitably yellow dim, the result of this is due to the surface layer of light oil oxidation. Yet it is not a will not be oxidation of light oil, remove the old light oil on the back light is the only way to restore original works.
Commonly used cleaning solvents are:
(1) turpentine. The old painting effect is oil painting reproductions weak, but the new chromatographic effect is strong, especially in hot water heating after use effect is better.
(2) refined gasoline and benzene, toluene, handmade oil painting xylene). Solvency of resin is better than oil of turpentine.
(3) ethanol (anhydrous alcohol) and methanol (wood alcohol). Is the most powerful resin solvent.
(4), acetone and chloroform. Can quickly dissolve resin and reservoir. Shops selling cleaning agent is a mixture of several kinds of solvent, china oil painting general strong solvents is not used alone. Modern oil painting with resin light oil, clean with turpentine can fall. The older generation of domestic oil use oily glazing oil, more need turpentine oil and mixture of anhydrous alcohol. And acetone only oil painting when cleaning the ancient works used as additives.
Wiping methods: dip in with white cotton wool ball (medical stores) cleaning cleaning agent from the corner of the picture is circular type to wipe, wipe every part of the time not too long, lest damage layer of color. Cotton dyed with yellow light after the oil to replace immediately. First pass most of the old light oil can be washed, cleaned when the second time for the stubborn strong solvent can be added. Damage caused by squeezing a stain and fly shit stains can use tool to clear.
Market size stabilization have to rise in 2016, the 10 special auction company held a total of 403 auction, art on cultural relics 64516 pieces (sets), 47162 pieces (sets), sell-through rate is 73.10%; Turnover is RMB 19.565 billion. Compared with the previous year, trading volume remained stable in 2016, and increased by 16.23%, recovered to 2014 levels. And these gains, kuang shi mainly comes from Beijing in this year's rapid growth, its sales a doubled last year ($4.804 billion); But look from the other nine companies, in 2016, the total turnover was essentially flat with the previous year (RMB 14.76 billion). From the market as a whole, art 2016 cultural relics auction markets.
Ancient painting and calligraphy led Chinese painting and calligraphy overall growth for the year 2016, 10 companies held a total of 149 Chinese painting and calligraphy auction, on 19555 pieces (sets), 14713 pieces (sets), conversion rates 75.24%, turnover of 12.385 billion yuan. Volume increase on the previous year 1658 pieces (sets), sales increase of 26.99%.
Porcelain yuk chun play, palace of art, such as the buddhist art, purple sand tea have different amplitude of growth for the year 2016, 10 companies special porcelain yuk chun play turnover year-on-year increase of 657 pieces (sets), sales growth of 7.85%. Court related art performance turnover year-on-year increase 52 pieces (sets), turnover increased by 15.18%. Buddhism art performance turnover year-on-year to reduce 214 pieces (sets), but the turnover was up 29.83%, and there were three special year more than one hundred million yuan. Purple sand tea with a special turnover year-on-year increase of 313 pieces (sets), turnover was up 44.25%, and there are 24 lots in 1 million yuan of above.
Oil painting and contemporary art, four omen, ancient books, COINS &stamps by category, such as 2016, 10 companies launched the oil painting and artistic now special performance volume from a year earlier to reduce 136 pieces (sets), turnover by 13.13%. Four special omen turnover year-on-year increase of 207 pieces (sets), but sales fell 10.33%. Ancient books fell special turnover year-on-year increase of 3360 pieces (sets), turnover was down 2.23%.
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