Question

Suggest any two precautions to be taken care of during the blueing process.

Answer 1

1. Coloured fabrics should not be blued, or else they will get a bluish tinge all over.
2. Fabrics should not be dipped in blue water that has been left standing for five minutes or more. If blue water is left undisturbed for some time, blue particles will settle down at the bottom, and the fabrics will get patches of blue colour.
3. Fabrics should not be left standing in the blue water otherwise patches will appear.
4. If patches of blue appear in the fabrics, they should be given a rinse in the vinegar water.
5. For better results, blued fabrics should be dried in the sun.