As the global demand for sugar and sugarcane ethanol increases, the number of sugar mills is also increasing. In beet or cane sugar mills and raw sugar refineries, filtration is one of the core processes to produce high-quality sugar raw materials. During the cleaning and filtration of sugar juice, filter bags help remove impurities in the sugar juice, such as solid particles, pigments and other insoluble substances, to ensure the purity and quality of the final product.
Main application links of filter bags
- Sugarcane/beet juice primary filtration: remove large particles such as coarse fiber and silt.
- Clarification process (such as lime method, carbonation method): separate precipitates (such as calcium phosphate, calcium hydroxide, etc.).
- Syrup fine filtration: remove activated carbon or other decolorizing agent residues after decolorization.
- Finished syrup filtration: ensure that the final product is free of impurities.
What are the filter bag materials used in the sugar industry?
According to the temperature, acidity and alkalinity of the sugar solution and the requirements for filtration accuracy, the commonly used materials include:
Polypropylene (PP)
Acid and alkali resistant, low cost, suitable for environments below 80°C (such as primary filtration).
Polyester (PET)
Good temperature resistance (≤150℃), high strength, suitable for medium-precision filtration.
PTFE or PTFE membrane
Ultra-high precision (up to 1μm), anti-pollution and easy to clean, used for fine filtration or filtration after decolorization.
Food Grade Filter Bag Manufacturer – Filmedia®
Filmedia® liquid filter bags meet multiple food safety standards, especially FDA (US Food and Drug Administration) and EU 10/2011 (EU Regulation on Food Contact Materials). These standards ensure that the materials and properties of filter bags are suitable for use in food production processes, prevent harmful substances from migrating into food, and thus protect the health of consumers.
