Author: Subrata Das, Dr.
The operation which is done for improving the appearance or look of the fabric is known as finishing. Fabrics generally carry various microorganisms which causes several problems to the wearer. The speedy growth in the textile industry has created many opportunities for variety of innovative finishes. In todays world, naturally renewable resources are increasingly being required because of human dedication to protect environment. Apart from new innovations created using the fabric, value added finishing gives add up value to the fabric in this situation. During finishing process, the fabric attains beneficial characteristics like resistance to fire, wrinkle, mildew, etc. This high value-added fabrics have generated demanding consumer market. In the last few years, there is a growing awareness about the healthy and hygienic surrounding condition. The diseases normally spread from person to person and through the surface touch of the hands, clothes, etc. of that infected person. Antimicrobial fabrics have its large acceptance as surgical clothes, undergarments, baby clothing, etc. The antimicrobial finishing treatment is now extended to the traditional clothing and the home textiles. The antimicrobial agents kill or inhibit the growth of pathogens to control their effect. The natural fibers like cotton get easily attacked by the microbes, because of the presence of carbohydrates in the fibre. Antimicrobial finished fabrics have wide variety of applications in sports clothing, Footwear, medical textiles, furniture, automotive textiles, intimate apparels, etc. The presence of microorganism in the fabric causes unpleasant odor, staining and causes health problems. Microbial infections cause some danger to the skin and therefore, the garment which is worn next to the skin requires antimicrobial finish. To protect the skin of the wearer, the application of antimicrobial finish using some herbs are done. Two types of antimicrobial agents. Antimicrobial agents are of two types: leaching and non-leaching. The synthetic antimicrobial agents such as quaternary ammonium compound, triclosan and many others are used for the antimicrobial finish. However, these synthetic antimicrobial agents are durable but they cause many side effects. Currently, the synthetic antimicrobial agents are banned according to the US and European standards, there is an increasing demand for eco-friendly antimicrobial textiles depend on natural antimicrobial agent such as chitosan which does not cause any harm to the wearer. There are various variety of herbs which are widely used as a traditional medicine in America, Africa, Europe, etc. for treating various type of diseases. The different parts from the organic plant such as papaya, aloe vera, neem, banana, hemp extracts can also be used for the purpose of antimicrobial finish. Many plants in the world contain the compound which is responsible for antimicrobial activity. There are various compounds in the plant which is responsible for the antibacterial activity such as tannin, flavonoids, terpenoids, etc. They are both bactericides (which kills the micro-organism) and bacteriostatic (which inhibit the growth of micro-organism). Environment friendly antimicrobial textile can be produced using plant extracts. Various plants have been gathered and they are tested for their antimicrobial activity. An effective study was regulated to evaluate the plant extracts both qualitatively (AATCC-147) and quantitatively (AATCC-100) for their antimicrobial activity. Although, the plant extracts have shown effective antimicrobial activity, the vital issue is the wash durability. The durability of antimicrobial ?nishing against washing was assessed using quantitative (ICP-OES) and semi-quantitative (LA-ICP-TOF-MS) methods. The physical properties (weight, thickness, fabric structure, count, EPI and PPI) of the fabric before and after application of finish have also been analyzed. There are various natural antimicrobial agents available, but limited studies have been carried out for their antimicrobial activity on to the textile materials.
