From Seaweed to Medical Fabrics: K-Patents Application Note on Alginate Fibers

Extracted from brown algae seaweed, sodium alginate is a multi-purpose, skin and nutrition safe ingredient used in different industries. The pharmaceutical industry has found alginates especially useful due to their gel forming, non-toxic and highly absorbent properties. Medical dressings made of alginate fibers are ideal for burns and open wounds as they help to accelerate the healing process. These fibers have hemostatic properties and can be chemically treated to obtain additional healing effects. In addition, alginate fibers are biocompatible, which means that medical wound dressings or other medical fabrics will not cause immunological rejection.

Alginate fibers are produced through a wet-spinning process. In this process a sodium alginate solution is coagulated as fibers in a salt bath. During manufacturing, fibers are coagulated in a salt solution. This is a crucial point in the process which affects the alginate filament formation, the fiber’s hemostatic properties and the overall product quality. K-Patents Process refractometer PR-43-A or PR 43-P can be used to monitor the concentration of alginate solution in the filling line as well as in the salt bath. Designed to meet all pharmaceutical industry standards and regulations, these products are the ideal in-line process instruments for the Process Analytical Technology (PAT) framework.

Read more about the application on ref 6.03.01 Sodium Alginate, NaC6H7O6, Calcium Chloride CaCl2 (PDF).