科研之友
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摘要
The application of nanotechnology in the textile finishing is increasingly being explored due to its unique and valuable characteristics. This has brought up many innovative finishes as well as new application techniques. The nano-finished textile materials are found to have better physical properties than the conventionally finished textiles, in areas such as anti-microbial properties, UV blocking, soil-resistance, etc. In the present work, zinc oxide nano-particles were prepared by wet chemical method using zinc nitrate and sodium hydroxide as precursors and solublized starch as stabilizing agent. These nano-particles were impregnated onto cotton fabrics by pad-dry-cure method using acrylic binder. A fine medium weight cotton fabric samples were used for this. The fabric particulars are viz; plain weave, 82 grams per square metre, 30 ends per cm and 24 per cm. [The longitudinal yarns of the fabrics are known as ends and the yarns lying in the transverse direction are called as picks]. The aims are to impart anti-microbial and UV protection functions to the textile substrate and the functional properties of coated fabrics were studied. The nano-ZnO impregnated cotton fabrics showed excellent antimicrobial activity against two types of representative bacteria viz. gram-positive and gram-negative. The results also showed that the impregnation of fabrics with nano-zinc particles also enhanced the protection of cotton fabrics against UV radiation.
- 出版日期2009
