Why do we use CMYK color for printing?

[shivajikobardan]

I will tell my research that i have done earlier here.



CMYK is used for print pieces like brochurers and business cards.

For RGB we need to start on black paper but we can't add light until we reach white because light can't be painted on surface, what does this bold content means to say?

in a monitor, light is being emitted (or added)when you add r,g,b you get white...in ink light is being absorbed(or subtracted) and when you absorb r,g,b you get black


if rgb is used, you get strange, muddy, and incorrect colors from printer. (but the question is why)


cmy cover most lighter color range quite easily compared to rgb.



I want if possible some mathematical representations of this...thanks