Process steps of Exocarpium citri grandis
Exocarpium citri grandis could be made into medicines, cigarette boxes, cigarette trays, pipes and other handicrafts by different method, such as knife method, rope method, rolling method, softening method, drying method or filling method. All of these products have good medicinal effects. The moistened Exocarpium citri grandis are flattened twice with a rolling machine, making the thickness of Exocarpium citri grandis become about 7-8 mm, and then naturally drying for about 3 hours. Afterwards, the second tableting process should be performed. The Exocarpium citri grandis is cut into filaments with a sharp medicine cutter, and the thickness of the filaments is 3-5 mm.
Exocarpium citri grandis drying process
The Exocarpium citri grandis is dried in a drying room. The thickness of each material layer in the drying room is controlled at 2-3 cm (after slicing), and each material cart is composed of 12-14 layers. The drying temperature is controlled at 55°C-60°C, and the drying time is about 30-36 hours. It should be continuously dehumidified and the drying process should be performed until the moisture content is below 12%. During the drying process, making the polymer chains in the Exocarpium citri grandis relaxed by controlling the temperature, that will make the Exocarpium citri grandis easily be extracted if it is placed in boiling water, and the extraction rate is over 95%. If the whole drying process is carried out, the drying time of each batch is about 4 days. During the drying process, a lot of crumbs of Exocarpium citri grandis remain, so you should use a sieve to remove the crumbs.
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