Revolutionizing PU Shoe Sole Production: The Wonders of Water - Based Release Agents
What is a water - based release agent for PU shoe sole?
A water - based release agent is a substance used in the manufacturing process of PU (polyurethane) shoe soles. It is formulated
with water as the main carrier and contains various chemical additives. Its primary function is to prevent the PU shoe sole from
sticking to the mold during the molding process.
Advantages over traditional release agents:
Environmental friendliness: Unlike solvent - based release agents, water - based ones have lower volatile organic compound (VOC) emissions. This reduces air pollution and is more compliant with environmental regulations, making them a sustainable choice for shoe manufacturers.
Safety: They are generally less flammable and less toxic than solvent - based alternatives. This improves the working environment for factory workers, reducing the risk of fire and health hazards associated with exposure to harmful chemicals.
Cost - effectiveness: Water is an abundant and inexpensive resource. Using water as the base can reducethe overall production cost of the release agent. Additionally, they often require less frequent re - application in the molding process, further saving costs in the long run.
Working mechanism: When applied to the mold surface, the water - based release agent forms a thin, even film. During the injecti on of the PU material into the mold, this film acts as a barrier between the PU and the mold. Once the PU has cured and taken the shape of the sole, the release agent allows for easy demolding, ensuring a smooth and undamaged surface of the shoe sole.
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