Characterization of a PVA Treated Sea-island Type Nylon Microfiber Nonwoven Leatherette

In this study, a leatherette was manufactured using sea-island type nonwoven nylon microfiber. To increase the flexibility of the leatherette, the nonwoven fabric was preimpregnated in a polyvinyl alcohol (PVA) solution. The PVA-impregnated nonwoven seaisland type nylon microfiber was treated with a polyurethane (PU) solution and then the elution process was performed to remove PVA and co-PET using a NaOH solution. The morphologies of the nonwoven fabrics before and after elution of PVA and co-PET were observed by scanning electron microscopy (SEM). The pliability of the nonwoven fabric was evaluated using flexibility and stiffness tests before and after each treatment. The leatherette with the PVA-treated nonwoven fabric showed more pores and gaps in its morphologies and higher flexibility in the stiffness test. Finally, mechanical properties were analyzed based on tensile properties and dynamic modulus.

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Characterization of a PVA Treated Sea-island Type Nylon Microfiber Nonwoven Leatherette

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