A pattern passes through the filter of the mind of different people. Time and mind play an important role in formation of a motif. Many of the schemes of Persian rugs are result of cultural exchanges of tribes and nations. As many social and cultural products such as stories, traditions, dialects and… are exchanged between different ethnic groups and influenced by each other, patterns also obey this law. Motifs in their transfer from one place to another change. Any pattern is result of needs of a society at a certain time and it can be changed in other societies with different needs and even introduced with different name. Living conditions and beliefs of each region determine the design and color of the rug. Geometric pattern of Heriz rug is an example of changing patterns in different societies.
The word Heriz is driven from the name of a city where these rugs are woven. The city of Heriz is located roughly 60 miles from the legendary carpet-producing city of Tabriz. A cold and mountainous area with particular vegetation that is compatible with the climate. Prolonged winters of the town made locals turn to weaving rugs. Weaving is main source of income in this area, and the rugs hand knitted are perfect for cold weather in this region. Design of Heriz carpet is Geometric and most of them are dark in color.
Many factors are involved in the selection of colors in a rug such as vegetation, climate, ethnic and national characteristics. That is why, Heriz rugs which are dyed using plants growing in that area, are usually dark in color and weavers prefer to use warm shades. Colors like red, orange, brown, dark pink, navy blue, black, ivory and cream are used most in Heriz rugs. Weavers are using blue as a contrasting shade between other colors. And because tribal yarns have more twist, so when they are dyed highlight color is seen on them that double the beauty of the rug.
Although the city of Heriz are located near the city of Tabriz and weavers in Heriz are influenced by artists of Tabriz and are closely related in some respects, their styles remain distinct. Geometric patterns in Heriz rugs are inspired from the mountainous nature in which they live. Heriz carpets are mostly distinguished by their rectilinear designs, a departure from the traditional arabesques and scrolls typical of Persian manufactory. A large central stepped medallion with corners or an all over design of highly stylized floral motifs is quite typical. Repeating patterns are less common.