The new drying system has brought in the most advanced state-of-art dryers across the world and the newer version dryers are named as rapid dryers, where-in the articles can be dried within 3 to 4 hours. Conditions similar to these types of dryers can be produced in normal closed drying chambers indirectly heated with waste gases or dry steam.
Since the water vapour produced is not immediately removed, the drying shapes are automatically exposed initially to moist, later to dry hot air. Drying in such chambers also results in considerable saving of time. The operation of humidity dryer involves the following three stages of drying.
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