Do your whites look dingy or a little yellowed?
The blue dye or locally called “tina” is a special trick to get yellowed or grayed whites to appear brighter. This is because…
__________ + __________ = White
![Do Your Whites Look Dingy Or A Little Yellowed The Blue Dye Or Locally Called Tina Is A Special Trick To Get Yellowed Or Grayed Whites To Appear Brighter This I class=](https://ph-static.z-dn.net/files/d7d/8277dbeb590e1d1e70093df0e56807b4.jpg)