Technology, Pathology of Conservation and Restoration of a Piece of Ka ba Curtain (Borghaa)

History of art and cultural heritage associated with our handicrafts is overflowed with relics such as metallic needle works on historical fabrics which embellish private collections. Conservation and maintaining of such relics are among our duties. Most of these relics have lost their original consolidation، color، brightness and become darker، turbid and worn out. Appropriate methods are necessary to conserve and restore such textile and needle work. Thus، the effective factors and process of damage have to be studied. The main purpose of this research is to investigate technologically and pathologically the fabric of a piece of Ka’ba’s curtain and provide a way for its protection and repair. Due to the sanctity of Ka’ba، this fabric is of high historical، cultural and aesthetic values but the surface of Borgha has become dark and murky because of the pollution in the air and also application of metallic golden and silver needle work. In this research، observations and laboratory investigations are carried out by means of multidisciplinary methods such as fiber examination methods، ASS، microscopic and metallographic techniques as well as SEM. Accordingly، considering the principle of conservation، the best manner has been used for more durability and also restoration of this valuable relic for the museum presentation. According to this method، dry cleaning of the fabric and metallic needle work of the curtain was selected and used for consolidating the metallic golden and silver needle works of the fabric.