Enzymatic Desizing

Technological Principles

Enzymatic desizing relies on the catalytic activity of specific enzymes, primarily amylases, to break down the starch-based sizing agents into smaller, water-soluble molecules. These enzymes act as biocatalysts, accelerating the hydrolysis of starch without being consumed in the process. The resulting smaller molecules can be easily removed from the fabric through subsequent washing processes.

• Alpha-amylases: These enzymes break down starch molecules randomly, producing a mixture of smaller polysaccharides and oligosaccharides.
• Beta-amylases: These enzymes cleave starch molecules from the non-reducing end, producing maltose units.
• Glucoamylases: These enzymes break down starch molecules completely into glucose units.
• Combined enzyme systems: These systems utilize a combination of different enzymes to achieve optimal desizing performance.

Enzymatic desizing finds wide applications in various textile processing operations, including:

• Pretreatment of woven fabrics: Removing sizing agents before dyeing, printing, and finishing.
• Desizing of knitted fabrics: Preparing knitted fabrics for subsequent processing.
• Bio-polishing of fabrics: Improving the surface smoothness and softness of fabrics.
• Degradation of residual starch: Removing residual starch from garments after washing.

• Reduced water consumption: The process typically requires less water compared to chemical methods.
• Lower energy consumption: Milder operating temperatures and shorter processing times translate to lower energy usage.
• Reduced effluent discharge: The biodegradable nature of enzymes minimizes the environmental impact of wastewater.
• Elimination of harsh chemicals: The use of enzymes replaces the need for harsh chemicals, reducing pollution and health hazards.

• Enzymatic Desizing Process: We utilize α-amylase enzymes to break down and solubilize starch present in size on woven fabrics. This method is a reliable and widely accepted solution in the textile industry for desizing starch-sized woven fabrics.
• Customized Desizing Recipes: We offer tailored desizing recipes that cater to different types of fabrics and specific client requirements, ensuring optimal results.
• Mild Desizing Conditions: Our enzymatic desizing process operates under mild conditions (pH 5.5-7.0, temperature 60-70°C), which are gentle on the fabric and do not damage the fibers.
• Innovative Enzyme Technologies: We are at the forefront of using novel enzymes and advanced enzymatic systems, including genetically engineered α-amylases and multi-enzyme cocktails, to improve the specificity and efficiency of starch removal.
• Ultrasonic Desizing Technology: We incorporate ultrasonic technology to enhance the penetration of desizing agents into the fabric, reducing desizing time, energy consumption, and water usage.
• Advanced Oxidation Processes (AOPs): We explore the use of AOPs for desizing, offering reduced chemical consumption and improved wastewater quality.

By choosing our enzymatic desizing services, you are not only ensuring the quality of your textiles but also contributing to a greener and more sustainable future for the textile industry, please contact us and confirm with our team for more information.