You know what I want? For Ichigo's final weapon...or ability....or whatever...to be named 'Bleach', then the name of this Manga will finally make sense.
@narutotheory!! THATS GENIUS. Think about it. BLEACH (for cloths) Turns them white!!!! Ichigo's hollow is named white! HIS LAST FORM COULD be named bleach because it'll clean up evil!! And Bach is black?
ITS ALL CONNECTED. We just need to find the dots.
As far as purifying goes that is an ability which all shinigami have. Their deal is to purify hollow souls and allow them safe passage to SS as normal human souls. As far as the meaning of bleach the whole thing refers to the shinigami's ability to purify said souls.
Anyways, as far as colors go different cultures have a different take on the whole thing. From a western perspective white is a color or purity and goodness and whatnot and black is a color of impurity and evil. In asian cultures their take is somewhat different. White is the color of death, mourning. Black is not seen in such a negative light so to speak. It can refer to mystery or power... Anyways, the thing is black is not seen as evil. So when we have the shinigami being black and their enemies being white which considering quincy generally have a western style in regards to their appearance and manerisms (monks, military uniforms and such) makes for an interesting contrast with shinigami. From a quincy perspective everything about shinigami will appear as evil. From a shinigami perspective everything about quincy will appear evil. The contrast is interesting because the whole thing denotes how the shinigami and their enemies disagree on the very definition of what evil actually is.
As far as ichigo goes though, everything about him still seems to be black. Even his zampakuto which represents his quincy powers was black and the part that represented white was also black. I guess ichigo is also meant to see everything the quincy stand for as evil.
But either way, White - purifies shinigamis from black to white.
Shingamis purify hollows from white to whatever
Its the circle of life