Abstract
Patent leather is a well-known leather type having a mirror-bright gloss finish and is produced from goat, calf, cattle, and corrected grain crust leathers by the use of patent finishing technique. Due to the emission limitations of volatile organic compounds, now water-based finishing applications are used in leather industry instead of solvent-based systems and still there has been no information in literature to reveal the effect of viscosity on the characteristic properties of patent leathers. Therefore, in the present study, water-based patent leathers differentiated in viscosity were investigated in terms of surface reflectance, tensile strength and elongation at break, to and fro rubbing fastness, distension and strength of surface, heat resistance, flexing resistance, air permeability, colorfastness to water spotting tests and scanning electron microscopy displays prior and subsequent to ageing process. The results of the study revealed that the patent film with 194.46cSt viscosity (S2) viscosity provided comparatively better results.
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