The dissolution of polyvinyl alcohol (PVA) is a delicate process, and the quality of the product and subsequent production steps may be affected by the quality of the dissolved product.

1. Disperse polyvinyl alcohol PVA in cold water to disperse and prevent it from sticking together.

2. During production, a bulk cone can be placed at the feeding inlet to control the rate of addition of polyvinyl alcohol PVA.

3. After adding polyvinyl alcohol PVA, it should be left in a static state for a period of time, allowing the polyvinyl alcohol PVA to swell in water for a while and controlling its swelling time.

 (According to the model, the swelling time varies for different models)