In the textile sector, color measurements have an important place among the physical properties of woven fabrics. Color analysis of weft yarns and warp yarns is carried out separately by laboratories, especially in fabrics to be woven with multiple colored yarns.

Before the fabrics take their place on the shelves of the store, their designs are drawn, their colors are designed, the necessary dyeing processes are done and they go through other similar stages. All of these stages are called finishing processes.

Chemicals used to color fabrics are called dyes. The dyeing of the yarns is a purely physical factor. The compounds that are used to color textile products and which are attached by chemical bonds are called dyestuffs. It is not possible for the yarns and fabric to which the dyes are applied to become colorless at the beginning by physical processes such as scraping, wiping or washing.

Dyestuffs are classified as cellulose fibers, protein fibers and synthetic fibers depending on their yarn fibers, application methods, chemical structures and water solubility.

Colors in the textile industry are divided into two groups in terms of psychological effects. Warm colors such as red, yellow and orange express vitality, movement and energy. Warm colors cause objects to be perceived as larger and closer. Blue, green and purple colors are cold colors. These colors have a relaxing and calming effect.

For physical tests performed in accredited laboratories, standards issued by local and foreign organizations are complied with. In this context, the following standards are used in color measurement analysis:

• TS EN ISO 105-B01 Textiles - Color fastness tests - Part B01: Color fastness to light: Daylight
• TS EN ISO 105-C10 Textile - Color fastness tests - Part C10: Color fastness to washing with soap or soap and soda
• AATCC 173 Calculation of small color differences for acceptability (Test method 173)