Deteriorating effects of the metal threads on embroideries
Embroideries are considered one of the most important complex textiles which are distinguished with a raised pattern by using additional threads called extra yarns. They are generally thicker than the original warp and weft threads. Usually, they are made of metal threads. These metal threads are made of gold, silver, copper and/or their alloys as well as gilt and silvered ... إقراء المزيد