The field of ultrasonic is still making strides towards perfection, but already many applications of ultrasonic energy have been found in science and technology. Ultrasonic is the science of sound waves above the limits of human audibility. The effects of ultrasound on textile finishing especially on bbiopolishing have been investigated. Use of biopolishing in the textile industry has become more popular in recent years. Although biopolishing offers many advantages, there are a few drawbacks when compared to traditional methods, namely, expensive processing costs and relatively slow reaction rates.Introducing ultrasonic energy during bio polishing treatment of cotton fabric significantly improves enzyme efficiency without affecting the strength of the fabric.
When a liquid, in which gas is dissolved, is irradiated by a strong ultrasonic wave,many tiny bubbles, a phenomenon known as acoustic cavitations appears.
The bubbles repeat their expansion and contraction according to the pressure oscillation of an ultrasonic wave. Some bubbles collapse violently at the contraction phase of an ultrasonic wave. The temperature and pressure inside the bubbles are increased to 5000 K and 300 atm respectively or more in the strong collapse.
About the Authors:
Kumar Satyam and Prof. S.K. Laga are associated with theD.K.T.E.s Textile Engineering Institute.
This article was originally published in the 'New Cloth Market', May, 2012.
20260709160637.png)
 (1)20260716164943.png)
Comments