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Feb 07, 2025
In the production of industrial filter fabric, heat setting is a critical process. Its main function is to ensure the fabric maintains dimensional stability and resists deformation during use, thereby improving overall filtration efficiency and extending service life.
Bolian Filtration has specialized in R&D and manufacturing of liquid-solid separation filter fabrics for years. Today, let's introduce the four key stages of the heat setting process:
Stage 1: Heating
The surface of the industrial filter cloth is heated to the preset setting temperature, preparing the material for the following stages.
Stage 2: Thermal Equilibrium
Heat gradually transfers from the surface to the interior of the fiber, allowing the entire fiber—both inside and out—to reach the same setting temperature for uniform results.
Stage 3: Transformation & Molecular Rearrangement
Once the target temperature is achieved, portions of the fiber's internal structure undergo changes. Molecular chains start to realign themselves, forming a new stable structure. This is the most critical stage of the process.
Stage 4: Cooling
Before leaving the setting machine, the fabric undergoes rapid cooling. This quick cooling locks the fabric into its new molecular structure, fixing its final shape and size.
These four stages are interdependent and essential. Through scientific heat setting, filter fabric gains improved strength, stability, and durability, leading to better filtration performance and longer service life.
At Bolian, we always stay true to our values: craftsmanship in products, sincerity in service, and integrity in branding. We are committed to providing our customers with more professional and efficient solid-liquid separation solutions.
