In new white bedsheets washing time shouldn't use bleaches like Sodium Hypochlorite or Bleach Liquids because it will damage the whiteness of the fabric, If required also very less dosage required after that compalsary neutralize the fabric with 7pH product, For white fabric required specially designed detergents because colour suitable detergents haven't more whitening property's, Especially Mylab Biotech Chemicals launched Purex 100L it's developed with advanced solvents this solvents helps to maintain whiteness long time, Even if you use in washing bleaches it will protect bleach act on Whiteness, This type of technology in India no one providing, So wash with Purex 100L whiteness we can maintain and old bedsheets also looks like new bedsheets, * Water also has major role use soft water and less iron levels and Mg+ levels, * Don't soak much time that will also damage the whiteness * Don't change products with out confirm seeing results, Because once you u