How is boric acid applied to the cotton fiber?
Generally applied in the mixing machine prior to the manufacturing process, boric acid is introduced to the cotton fibers along with a small amount of oil and chemical surfactant. The oil helps control dust and also acts as a carrying agent that allows the boric acid to adhere to the cotton fibers. The surfactant allows the oil and cotton to bond to the boric acid. To further achieve even distribution and adherence to the fibers, the boric acid is ground to a very fine consistency prior to application.