The fabric business makes extensive use of napthals, fast bases, and fast salt. They work well with the African print and wax print procedures. These are also used in the chemical, plastic, textile, and pharmaceutical sectors, among others. They guarantee cutting-edge, frugal use. They also react quite strongly to moisture and heat. They need to be kept in a dry and cold environment. Fast Base, Fast Salt, and naphhols are water-soluble and suitable for a variety of dyeing techniques. They have high brightness and are regarded favourably for lighter shading. They are heat, moisture, and light sensitive and may be applied to cellulose fibres.