Microbes are the tiniest creatures not seen by the naked eye. They include a variety of micro
organisms like bacteria, fungi, algae and viruses. Bacteria are unicellular organisms, which grow
very rapidly under warmth and moisture. Further, sub divisions in the bacteria family are Gram
positive (Staphylococcus aureus), Gram negative (E-Coli), spore bearing or non-spore bearing
type.
Some specific types of bacteria are pathogenic and cause cross infection. Fungi, molds or mildew
are complex organisms with slow growth rate. They stain the fabric and deteriorate the
performance properties of the fabrics. Fungi are active at a pH level of 6.5. Algae are typical
micro organisms, which are either fungal or bacterial. Algae require continuous sources of water
and sunlight to grow and develop darker stains on the fabrics. Algae are active in the PH range of
7.0-8.0. Dust mites are eight legged creatures and occupy the household textiles such as blankets
bed linen, pillows, mattresses and carpets. The dust mites feed on human skin cells and liberated
waste products can cause allergic reactions and respiratory disorde
