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            Perfume:
          
        
        
          The alcohol used in the
        
        
          manufacturing process can cause perfume
        
        
          to vaporise onto clothing and this can affect
        
        
          the colours on silk fabrics. Perfume and
        
        
          deodorant stains can be pre-treated with a
        
        
          solution of citric acid (one part citric acid to
        
        
          5 parts water), and then washed in the usual
        
        
          way.