Polyester/Cotton Blended Fabric Dyeing Process with Easy Way

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Cotton and polyester are two different fibers that come from natural sources and are synthetically produced consecutively. These two fibers have different physical characteristics, such as length, diameter, strength, elasticity, torsional rigidity, frictional properties, and chemical properties, such as thermal properties, density, resistance to chemical agents. Cotton is very resistant to alkalis, but aqueous alkalis can seriously damage polyester. Polyester should not be pressure boiled in alkalis, as this speeds up the deteriorating process. Terylene fiber is fully alkali resistant for its purpose as a textile fiber. The alkali sensitivity of polyester/cotton blends should be considered when scouring them. The polyester/cotton blends with more cotton require more scouring and bleaching agents in pretreatment because cotton fibers hold more dirt and impurities than polyester fibers. The purpose of this article is to explain how to calculate dyeing recipes for polyester and cotton blended fabric dyeing.