Technically it is not easy to have a proper repair of "old technology" pieces. Today it is difficult to obtain suitable yarns that match the quality of old ones. The main problems are the dyes: in any oriental weaving cultures, backed by 2000 years (at least) of tradition and accumulated knowledge, natural dyes were as saturated as possible. Only then was there a chance that they might be sufficiently fast against light. On the surface of antique weaves even these are damaged, paler than they were originally.
If one would replace a new natural dye that has the same intensity as the original the surface of the piece would look different (but the same tone one might see inside the pile where the original dye is not been damaged!). Pastel natural dyes of new make are not light fast and will go down more rapidly than the 100 years old original dye! If one uses metal-complex (that incorpoates heavy metals, like chromium) there will be no problem with light fading. But the dye proces damages the wool a lot and one gets a kind of hybrid (the German word for hybrid, bastard, seems more expressive).
If one wants to achieve a result more like the worn out and heavily patinated pieces that are so common for us and exploit the extremely cheap workmanship available in the Near East (9) it is possible to obtain useless tiny fragments of early kilims, take out the yarns and re-spin them. Then one has the same tone but this wool is technically less safe (dry and less resistive, of lower performance in the long run). But the look is, for most customers, better.
Now let us think one step further. We got a yastik, 80 years old, some natural dyes, 2-3 ugly early acid dyes. What would a perfect repair be like? You have an idea? Yes, indeed, you are right.
One should not forget that the simple fact that Western people pay large amounts of money for anything that looks old, creates romantic fantasies in oriental brains as well when local people realize it. How it would work to go one step further should not be difficult for you to find out. Just one tip: to work with old wool on new warps and wefts would be technically better but impose other limitations, if you know what I mean. That some people, far away in the Near East, had the courage to think this problem to its logical end, you will see at least one example at ACOR. According to what we have heard it is the first time that such a modern creation will be exhibited without a fairy tale but with a frank description. But this must not mean that the piece in question is a lonesome avant garde document without any brothers or sisters in the USA.
We do not have any objections to people who repair in that style. It is more or less like the second hand car business. If a car had an accident and gets repaired - is this repair a damage to the car? It might be a legal issue when the seller claims that the car never had an accident in order to realize a higher price. But this is a legal issue, not a technical one. For these issues we need experts, but we have a lot, don't we ?
Parallels in Other ArtsIn the sixties there was a scandal in Austria. Two "gothic" wooden statuettes were offered at the famous Dorotheum auction house for quite some money. Then a well known artist, Peppi Rifesser from St. Ulrich in the Grödner Valley in Northern Italy, a famous village renown for the art of wood scarving, appeared and claimed that these two were of his make. But he said he never offered or sold them as antiquities. All he did was to apply certain strange methods of artificial "aging" (like putting them under water for a certain time, etc.) to obtain a desired "early" look. But he did not pretend that they are old to his professional dealer customers. He gave them all the details and got a high but somehow "normal" price, the usual money. The change to a fake event was done then by some dealers who channeled it into the auction house as old (10).
What can we learn from this happening for carpets and kilims? We live in a historical low of the quality of oriental weaves. The bulk of the customers want them cheap and get them cheap - but expensive (several hundred percent above the expense to make them (11). If somebody would dare to create a rug that is technically and aesthetically better, all customers (12) would try to get it for its assumed "normal" price or drop it. What happened to Mr. Rifesser - that the customer pays an appropriate price for the work that he can do using his own materials and decisions - would not happen. The weavers of fakes have no access to new-yarns-made-from-debris, no contact with their customers that would allow them to learn their preferences. The whole process is in the hands of enterprising dealers - and they could not sell if they would openly state what has been done. It is a kind of collaborative comedy where everybody puts in his share and plays his own role: the end consumers, the dealers in between, the producer-dealers in the Near East, the weavers, yarn spinners, debris hunters. Shall we call it Völkerverständigung that we exploit each others prejudices and fantasies that we cultivate and gain a far reaching network beginning at the dust heaps in Anatolia and ending at the exhibition rooms at ACOR?
FOOTNOTES
1: Carpet books from this period show their prices in outdated currencies. As we have shown elsewhere, it is possible to recalculate it by comparing present wages of qualified industrial workers to those of 1909. The result is that a certain type of Central Anatolian village rug, low knot count, silky long wool and strong dyes, of small size cost about $3,500 retail.
Neugebauer, Rudolf & Orendi, Julius (1909): Handbuch der orientalischen Teppichkunde. Leipzig. Hiersemanns
Handbücher, Bd. IV.
2: We distinguish 3 classes of pieces:
A-pieces: the real origin of the piece is known and can (theoretically ) be communicated to a client or to an honorable middle-man. The "fate" of the piece is known (who took it to whom, whether anybody tried to wash it), too.
B-pieces: a first-hand source intelligence about the origin is not available. More or less accurate "guesses" from experienced people. The "fate" of the piece is known.
C-pieces: obtained from the trade. We propose the German expression Strandgut, debris that is left on the beach after a storm. Or we propose to compare it with a second hand car of unknown provenance, without papers. Nothing is certain, the piece is "as is". Nobody can take further responsibility except for what he personally did with the particular piece.
In Essen, many pieces were of known origin, in some cases even the house where they came from. And, of course, the details of the treatment are known and documented.
3 : The catalogue is in German, with beautiful pictures of the exhibition, not only of the pieces. The color quality of the prints must be considered along with the price of the catalogue. It is difficult to get so many top pieces, some published for the first time, together in one booklet. Katalog Essen
4: At that time our message that to know the real origin is like obtaining the papers within a second hand car deal was not very successful. The lessons of the fiascos with the innovative techniques on how to treat antiquities in the nineties were not yet learned at that time and we often felt like amateurish idiots. Anyway, the picker is known so it may be called an A-piece.
5: It was done by applying a special dyeing method based on the use of madder only. Instead of a deep purple it resulted in a very deep black-like nuance, by enhancing minor components of madder.
6: Washing Antique Textiles: Please keep in mind that any wet process is harsh and potentially damaging for each fiber. They are made to stay dry. The most sensitive part of a weave are the dye lakes (A) (as opposite from vat dyes et.al.).
In order to understand the basic problem of antique washing please imagine the following situation: in a wild, big garden, long forgotten, there is a wall made of bricks. The bricks are spotty. Lichens grow on them, even mosses. Residues of evaporated salt are visible on the surface of the bricks. The mortar that once kept the bricks together is corroded. A certain part of the mortar has fallen down. In some spots where the mortar seems to be intact, it is easily removed by scratching.
If one tries to clean this wall with a high pressure hot water cleaning apparatus, some parts of this wall would be clean. But some parts would be destroyed by the high pressure. In the areas where the mortar seems to be intact, but is in fact partly corroded, it would be rinsed out. As a consequence, many bricks would drop out of their context immediately or later. Therefore, some parts of the wall most likely would collapse.
It would have been better first to remove the corroded mortar and replace it. Some days later this fresh mortar would be hard and resistant. Then it would be possible to clean the whole wall thoroughly. It would be kept intact and would look more or less clean. It would still be obvious that it is an old wall.
Antique textiles should be cleaned according to this principle. They have been made using mortar. Substances that can be compared with the mortar of this above given example are:
- the keratin molecules of wool fibers, the fibroin of silk and the cellulose molecules (B) of cotton or linen are oxidized by light
- the chemically heterogeneous set of substances that we call "wool fat" is changed by light oxidation, dust, washing and by chemical attacks. Its amount is decreased, the wool gets dry, nonelastic and brittle.
- substances, which are part of the dye lakes, are attacked by oxidation and are constantly removed. The dye appears to be less vivid, sometimes even spotty.
The first step of treatment should be to repair the damage caused by oxidation, but it cannot be completely reversed. This is confirmed by new research reports on how to treat microbials stains on antique papers (D). Then the dye lakes must be repaired.
After this is done the textile can be washed. Preferably "soft" type of tensides (detergents) should be applied. Alkyl sulphates or even alkyl ether sulfates must be avoided because of their strong defattening properties. Certain tensides tend to form chelates with polyvalent metals (all ethylene oxide adducts). Since they attack the fastness of dye lakes, they should not be used. Soap is not an adequate tenside for washing antique woolen textiles. In order to achieve a proper cleaning action with soap the fluid must be quite alkaline. Wool absorbs acidic and alkaline substances strongly. They cannot be removed with cold water, but remain in the wool and cause long term damage. The optimal pH for wool and for human skin is 5,5.
Finally the textile should get a refattening treatment using exclusively natural substances. This claim excludes lanolin which is manufactured using waxes based on mineral oil. Under no circumstances should synthetic substances be used to improve the luster. Many of them adhere irreversibly; this is the case with the new synthetic silicone substances.
If one is limited to exclusively natural substances for refattening the consequence is an antique textile with a good lustre of excellent dyes and wool but with a lackluster sheen where the quality would be mediocre. If silicone is applied a stark glare dominates all areas of this textile. Silicone adds this glare even to grey concrete.
It is said that an archaeological excavation is the only scientific experiment that cannot be repeated. The same is true for washing antique textiles, especially if they have been stapled somehow somewhere in the orient. Even if the first step is that they are submerged in soft water and washed using a special soft tenside, all dyes that are not fixed well enough by means of the above mentioned processes, are irreversibly removed. Perhaps the textile would be clean then. Regarded as a piece of art it is heavily damaged, perhaps destroyed.
On request, we will identify textiles, whose condition before and after such treatments we saw with our own eyes, have been "improved" by this way in recent years.
The antique washing system of KÖK:
1. Treatment against oxidation damage (cold, pH 5,5)
2. First bath for dye lake repair
3. Complete drying (in the cold at low air humidity)
4. Second bath for dye lake repair
5. Complete drying in the cold
6. Cold wash with a soft tenside (alkyl polyglucoside: coconut fat alcoholes and natural sugars are condensed in a chemical laboratory) at pH 8 - 8,5 (about the degree of sea water).
7. Refattening using natural wool fatty alcohols (ca. 30°C, pH 5,5)
8. Ironing with steam
For a critical evaluation it must be noted that one has to achieve a balance between factors that may oppose each other when an antique wash is done (C):
- to remove dirt
- to restore the vividness and fastness of the dyes
- to improve the long term durability of the textile by regaining its elasticity
The system used here puts the priority on the last two aims, in case of conflict on the expense of the first one.
A A state of the art treatment of an 18th century "Konya" carpet with an open, bright, lucent yellow would be like this: first a HPLC with Diode-Array-Detection analysis of the dye, whether it is made up from (a) flavones or (b) flavanol-glucosides. In case (b) under no circumstances even 1 drop of water should be applied: the bright yellow would change irreversibly to a dark, matte ochre-brown-yellow. This has happened often in the last 15 years.
B In fact, there are more different molecules in cotton and linen than just cellulose.
C Attention: if a C14-radiocarbon dating is planned the natural auxilliaries used here may interfere with it. The result would be underestimate the age.
D Koch, Beate, Trick, Iris & Vohrer, Uwe (2000): Stopp dem Buchzerfall. Spektrum der Wissenschaft, 4, 2000, 85 - 87. This is the latest high technology approach for paper conservation. Realized with different tools, this is exactly the same kind of treatment that KÖK has used for about 15 years with antique textiles.
7: To the best of our knowledge, Sigrid Schmid from Kuchl near Salzburg in Austria, formerly with Galerie Sailer in Salzburg, is the leading interpreter and prepared many of the kilims in this exhibition.
8: Technical problems with scanning a big sized colour transpareny are responsbile for that. Turkotek does not command a set of machines comparable to a professional magazine. That is, on the other hand, one reason for a comparatively high level of independance from the trade.
9: These "new-from-old-wool"-pieces match the expectations of semi-educated collectors much better than the chemically washed and sun-bleached (artifically damaged) pieces of the "natural-dye" fashion production. Technically they are better by far, although they cannot compete with expertedly done modern textile art or even careful production of high standards. In any case, their technical value is much higher and they warrant a higher price than the normal merchandice.
10: Courtesy of Dr. Eberhard Ammermann, Heppenheim/Germany.
11. In 1970 the ratio in income between a German and a Turkish laborer was about 5:1. In 1994 this ratio was 1:12 or even 1:80 if the Turk lived in the battled southeast. Last year the Turkish Lira dropped to 40% of its former value against western currencies. Iran is even poorer, but cannot compete with Pakistan. If the monthly income falls below $100, new dimensions for the application of labor-intensive technologies are opened. Westerners are proud of being innovative.
12: The special decorated places that the tourist industry has established in Turkey (at the coast, in Istanbul, in Cappadocia) has to work with a ratio of 1:10 between buying and selling price. The expenses for catching the customers in the right mood are enormous. So more than 90% of the buying price at the end are invested in factors that do not enhance the quality of the goods but in the luxury of the buying situation. The customers are adult and responsible for what they do. By the way: if you buy luxury cosmetics or buy designer jeans in New York or Vienna you swallow the same ratio.
© Michael Bischof and Memduh Kürtül
With the permission of TurkoTek