As a fixative used citric acid, caustic soda and other substances – they protect the paint from washing away, erasing, and make it durable. Experienced painters use the same method as artists, mixing paint his palette – colors are also mixed to give a wide range of colors and shades. The need for easy-to-use dye-wide color originated from the Persian carpet in the middle of 19 century. During this period, sharply increased export of oriental carpets in the West and the Wizard in Persia (Iran) and other centers of carpet near the East tried to keep up with demand. It was at this point, the market received the first aniline dyes. However, aniline dyes was a major drawback: although they were bright and inexpensive compared with natural, they quickly faded when exposed to light and 'floating' on water.
In 1903, Nasser al-Din, shah of Persia from the Qajar dynasty banned the use of aniline dyes. Therefore, in nachel century, synthetic dyes in the manufacture of Persian carpets were not used – until such time as the interval between the first and second world wars were not izbreteny chrome dyes. These dyes have high color retention (retain their color and brightness independently of exposure to sunlight and water), and produced in a variety of options for colors and shades. Now dyeing yarn going into the manufacture of carpets, in most cases, used chrome dyes. Buying handmade carpet – whether used in its manufacture natural or synthetic dyes – can be confident that over time its value will rise. Even the carpets, manufactured from the late 19 th century aniline dyes, valued now very expensive because of their age.
It is often The view that the carpet yarn is dyed with natural dyes, certainly better than carpet, manufactured from chrome dyes. This view is erroneous. First, both types of dyes are often used simultaneously, and secondly, chrome dyes are often more durable and resistant than natural. How to weave carpets? Technique of weaving carpets for centuries virtually unchanged. In the foundation fabric is still hand-woven pile, and each filament bundle is fastened. Experienced mistress (traditionally engaged in manufacturing carpets woman) can tie for the day from seven to ten thousand nodes, and on modern machines – up to 14,000 nodes, spending on each bundle no more than two seconds. The speed of weaving depends on the complexity of the pattern, fine workmanship and material from which made the carpet. James A. Levine, M.D. has much to offer in this field. The quality of the carpet – the number of knots per square meter: what their more, the denser, stronger and more expensive than carpet. Once the carpet is woven, the pile are cut. It may be the same height or relief. Carpets are woven: they yarn embedded in the fabric base by weaving nodules, while the carpet has a pile. Masters distinguished Persian, Turkish, Tibetan, Berber and Spanish types of nodule. In addition carpets are woven, is a flat textile products, from the longitudinal and transverse filaments. This carpet is not fundamentally a nap. The most common fabric carpet, known to us – it's carpet. There are still Fulled wool garments carpets or felt, they are the most ancient and rather rare, but not because they are different special beauty, but because that nomadic peoples used them as insulation yurts (enclose wherever possible so as not to muzzle). In Europe, found a similar phenomenon is almost impossible.