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                        Effect of Banana (Musa Balbisiana) Pseudostem Sap on UV Protective Property of Cotton Fabric
                                                                     Thet Thet Aung Thein
                                 Department of Textile Engineering, West Yangon Technological University
                                                         Yangon, Republic of the Union of Myanmar
                                                                    [email protected]
ABSTRACT
The research is concerned with the study of the effect of banana pseudostem sap (BPS) on UV protective property of cotton fabric. In this study, cotton fabric is treated with different concentration of banana pseudostem sap solutions. The banana pseudostem sap is extracted from the banana pseudostem and the sugar cane juice extractor is used for this extraction. Firstly, the cotton fabric is mordanted using tannic acid and alum as mordants. And then, the extracted sap is made alkaline because the properties of cotton fibre can be degradable in acidic condition and treated on mordanted cotton fabric. Physical properties such as fabric weight, thickness, stiffness, breaking strength and air permeability of treated fabrics were analysed and compared with that of untreated fabric. The results show that the BPS treated fabrics improve physical properties except air permeability. The BPS treated samples are stiffer than the untreated one. After that the UV protective property of treated and untreated fabrics is tested and analysed. All the BPS treated fabrics have higher ultraviolet protection factor (UPF) and lower UV transmission percent than the untreated one. Among them,the highest the ultraviolet protection factor (UPF) and the lowest UV transmission percent is achieved on the treated sample S5 compared with the other treated samples.
Keywords – banana pseudostem sap, UV protection, cotton fabric, pH, physical properties