Why is Desizing Necessary for Denim Washing?
By Baico Biotech 丨 Denim Washing 丨 Baico Bioch-Arpina
The denim was originally only used for workers' uniforms. However, thanks to its outstanding practicality and stylish appearance, denim has evolved into an independent fashion genre. The fabric used for making jeans is mainly spun from cotton raw materials. Denim fabric is primarily composed of cellulose. Abundanthy drogen bonds form between cellulose molecules, endowing raw yarn with high tensile strength, high crystal linity and structural rigidity.
During the denim textile process, warp yarns aresized with starch-based starch slurry and polyvinylalcohol (PVA). Sizing improves warp yarn tenacity and reduces end breakage, enhancing the yarn's resistance to mechanical loads during weaving. Although sizing denim warp yarns delivers multiple benefits to denim manufacturing, a protective film forms on the yarn surface. While this layer offers partial protection to the yarn, it creates a hydrophobic barrier that preventswashing chemicals and enzymes from penetrating the fabric, adversely affecting subsequent finishing processes. Consequently, the starch slurry must be eliminated from denim via a procedure called desizing. In modern industrial production, amylases are primarily utilized to cleave long- and short-chain starches within sizing compounds into water-soluble dextrins and maltose. These amylase-degraded fragments can be readily washed away using hot water.
Desizing enzyme is also call amylase, amylase is one of the best enzyme from BBT ENYZME. let’s learnone of BBT enzyme amylase from this article, It is named Alchemy®A16L. The Alchemy®A16L is liquid and high concentrated. It is used in lower temperature and wide pH range. It reduce the usage of high temperature when it is used in the lower temperature. It is beneficial to reduce the usage of energy. The BBT Company manufactures a desizing enzyme named Alchemy®A16L. The Alchemy®A16L is liquid and high concentrated. It is used in lower temperature and wide pH range. Application under low temperature helps cutdown heating requirements and lower energy consumption. Products of this series do not require alarge dosage of caustic soda, which reduces chemical usage. They deliver a safer working environment for operators and provide factories with eco-friendly, cost-effective solutions.
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