In the Fiat-Lancia 50496 standard, published jointly by Fiat automobile company and its affiliate Lancia automobile company, the requirements for the color fastness of textile products used in the interior of automobiles in water are explained and a test method is defined.
Color fastness of upholstery fabrics used in automobiles is an important quality criterion. In color fastness tests, the resistance of the fabric to the effects of artificial or natural light is evaluated. While doing this test, the upholstery fabric is exposed to artificial lighting for a longer period of time (about 90-100 hours). Depending on the quality of the dye used, the part of the fabric exposed to light changes color more or less during this period. The color difference to the original color is then evaluated with a 9-level blue scale. At the end of this test, level 1 indicates that there is a significant difference compared to the original color, while level 9 indicates that there is no change compared to the original fabric after the test.
Color fastness to water is not a washing test. It is used to determine the transfer of color to another fabric, especially when wet and in close contact. Color fastness is the resistance of a fabric to change in its color properties or to transferring its coloring agents to adjacent materials. Color fastness problems are generally caused by the fiber type and dye type. The fibers must be compatible with the chosen dye. For example, polyesters perform well with permanent dyes. Also, the larger the dye molecule, the easier it binds to the fiber. Some dyes are water- soluble, while others are not.
Unlike other properties such as flammability, there are no mandatory legal requirements for color fastness testing. However, color fastness test is considered important in order to ensure customer satisfaction in fabric products.
These tests are carried out in advanced laboratories according to international standards. Fiat-Lancia 50496 standard has an important function in determining fabric performance and quality.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our company also provides testing services to determine the color fastness of fabrics used in the interior of automobiles in water, within the scope of Fiat-Lancia 50496 standard, with its trained and expert staff and advanced technological equipment. .
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