Causes and prevention methods of poor water repellency of textiles
Tag:
Textile water repellent fabric waterproof cloth water repellent effect
The specific manifestations of poor water-repellent effect: the water droplet ball rolling effect is poor, and even the fabric is wet.
Cause:
① Raw silk pulp The fabric has not been washed and cannot be washed with water after dyeing. The fabric contains residual surfactant.
② The amount of water-repellent agent is too small, the rolling residue rate is too low, and the vehicle speed is too fast.
③The raw silk is not completely dry.
④The baking temperature is too low, which affects the cross-linking of the water repellent agent.
Prevention methods:
① Water-repellent finishing The raw silk must be clean and free of impurities.
② Increase the amount of water-repellent agent; master different padding rates for different fabrics, and the padding speed should not exceed 24m/min.
③ Carry out water-repellent finishing after drying; determine the appropriate process conditions.
④ Strictly abide by the process conditions.
：Other
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