Dr Majid Montazer, Mr Hamid Rahimpour,
Volume 4, Issue 9 (6-2008)
Abstract
UV irradiation was known as an important factor for skin cancer and also textile fibers and dyes degradation. UV rays have high energy photons degrading dyes and fibers causing fading and rotting of textiles when they are exposed to sunlight. The sun blocking properties of a textile are enhanced when a dye, pigment, delustrant, or UV absorber is present which absorbs UV radiation and releases heat. They block the transmission of UV and inhibit the dye and fiber exposure. In this study, natural dye of madder with different mordants and two organic acids including: tannic acid and citric acid were selected for dyeing wool. Impacts of tanninc acid and madder on UV transmission were investigated. Also the effects of madder on protecting fabrics against UV were determined by measuring their tensile strength. The results indicate that tannic acid has positive influences on blocking UV and even increasing the tensile strength. The results also reveal that silver nitrate and copper sulphate are the best UV blocking among others. Finally, the wool fabric sample treated with silver nitrate and dyed with madder along with tannic acid exhibits the highest protection against UV.
Sasan Samanian, Sareh Bahmani,
Volume 15, Issue 35 (9-2019)
Abstract
The greatest reputation of Iranian handmade carpets is after the beauty of its design, its brightness, its durability and its longevity. Some of these carpets, which are a valuable treasure of the art of this border, are kept in museums and collections that are surrounded by conditions Non-normative acts cause serious damage, and sometimes even damage to them.
Air pollutants are very numerous in terms of their origin and health effects, and it is virtually impossible to check all of them. Therefore, a group of air pollutants, called carbon monoxide, ozone, particulate matter, nitrogen dioxide and sulfur dioxide, are commonly studied. Therefore, considering the importance and necessity of controlling pollutants and their essential role in managing environmental conditions, it is necessary to identify major pollutants in the museum and how their effective control in the environment is the main objective of this research. . Important factors such as dust, carbon oxides, sulfur oxides, nitrogen oxides should be analyzed instantaneously and permanently in order to control compliance with standard standards in the carpet museum environment.
This research is a descriptive cross-sectional study carried out with environmental studies, statistical and sampling methods as well as library and laboratory studies. To identify and introduce atmospheric contaminants and to study, measure and monitor these factors in the museum to identify the most practical And the most appropriate carpet and carpet maintenance method. Therefore, the carpet museum in Tehran has been selected to implement these methods. Finally, it was determined that the pollutants in the Persian carpet museum were in the year 1395; in the summer, it was more than the winter season. Which was the most infected months of the year in the summer of August (due to the highest occurrence of dust phenomena) and January-December (due to the most invasive phenomenon). March was the most desirable month of the year due to the increasing volatility of atmospheric conditions and the reduction of urban traffic volumes.
Sasan Samanian, Sareh Bahmani,
Volume 15, Issue 36 (3-2020)
Abstract
The Iranian Carpet Museum collection contains the most valuable specimens of rugs from the ninth century AH to the contemporary period and is a rich source of research for researchers and art friends. Carpet Museum carpets and carpets, according to their quality and antiquity and taking into account the characteristics of carpet in terms of color, design, role, texture and variety of carpet weaving areas are preserved. The museum is built on two floors, the first floor of which is a permanent display of 150 pieces of carpet and the second floor is intended for specialized and seasonal exhibitions.
In this empirical-analytical study with environmental studies, sampling as well as library and laboratory studies, we have identified and introduced appropriate light levels for the storage of museum carpets with natural fibers, thus In order to perform tensile strength test of museum carpets because it is not possible to perform tests on museum rugs and it is necessary to fabricate rugs in accordance with the statistical population studied, weave samples of natural fibers of wool, cotton and Silk is done. Finally, according to the data obtained from the test of tensile strength of carpet in line with the length and width of the samples, analysis of variance, Toki and LSD tests can be concluded that light has a destructive effect on the carpet and reduces the tensile strength of the carpet and It has a significant effect on the tensile strength of carpets.
