Author(s): Asagekar SD
The cotton base fabric with plain weave was coated with different coating formulations for exploring the best possible formulation for achieving reasonably good waterproofing and breathability. The coated fabrics were manufactured with Polyvinyl Chloride (PVC) resin, mixture of PVC and Polyurethane (PU) and PVC mixed with Polyethylene Glycol (PEG)/Ethylene Glycol (EG) additives. The properties of coated fabric were studied for two solutions of coagulation bath. The characteristics of coating film were studied by subjecting the coated fabric samples to water treatment. The film porosity was found to be high for all cases, corresponding to low rate of coagulation. Also it was observed that on washing the porosity of film was increased. The fabric coated with mixture of PVC and PU formulation found to give best breathability (around 60 to 75% of control fabric) with water penetration resistance exceeding 150 cm head of water.
