科研之友
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摘要
The extract from mangosteen pericarp (MP) was applied to a silk fabric. Its dye ability of silk fabric has been studied together with its colorfastness, antibacterial activity and UV protection properties. The mordant are aluminum potassium sulfate, ferrous chloride and sodium hydroxide were used to dye fabric. The color fastness to washing, water, perspiration, light and crocking of the dyed samples was determined according to AATCC test methods. In this study the UV protection properties were investigated on silk fabrics. The chemical functional groups of the dyes that were characterized by using fourier transform infrared spectroscopy (FTIR). Our results revealed that MP dyed silk fabric exhibited fair to good and good to very good fastness to washing and crocking, fair to very good light fastness, except for fabric mordanted with sodium hydroxide, whose rating were very poor to poor light fastness. The water and perspiration fastness ratings were good to very good, except for fabric mordanted with aluminum potassium sulfate. Silk fabrics mordanted with ferrous chloride and dyed with MP usually showed good UV protection levels even if undyed. Antibacterial activity of this dyed silk was confirmed by exposing the fabric to Staphylococcus aureus. The fabric dyed with MP extract reduced the number of viable organisms by 98% mordanted with ferrous chloride. These extracts gave polyphenols, gallic acid and carboxylic acid contents. Therefore, it was suggested that MP has the potential in producing functional dyes that could be imparted into the silk dyeing natural colorant system and incorporated in several kinds of cloths.
- 出版日期2016
