Ok so colour is affected by light...why are there different colours for the same materials then?
Answer:
Because the light reflect differently on certain colors that why we see every color in a different way.
when similar materials are different colors it is because there is a different substance in it that reacts differently to light. say you had two white shirts, then you dyed one red, the red one would absorb more of the light because of the dye causing it to be red. (Red is the longest wavelength of light causing it to become absorbed last, thats why sunsets are usually red.
Density of the cloth from different materials , some absorb colours better than others, also they may dye, dry and re-dye again to get a deeper hue. light affects it by direct or obtuse lighting, a photographer uses it to bring out all aspects that he requires to enhance his photos.
Black is the lack of color . And white is the collection of all the colors (that we see) of a spectrum. A material's chemical make-up (molecular structure) decides which areas of the light spectrum (colors) to reflect and which to absorb. Reflected light is the color we see. Objects can be black because all light is absorbed (notice how black heats up on a sunny day as compared to white?). And colored objects are reflecting (and absorbing) only parts of the spectrum. Objects that reflect all light (all colors) appear white. Now, repeat all that I said 5 times quickly, and backwards, while drinking water.
Every substance absorb a specific colour when white light falls on it. Then it emits rest of the colour of specific wavelength that we see.The exact colour of any body can be predicted if we know the wavelength of that emmited radiation. These wavelengths lie in the visible region(VIBGYOR). The table can be seen in books of +2 level onwards.
If a material displays varying colors its because something has changed about the molecular structure of the material. For instance Carbon can exist as black graphite or as clear diamond. Still carbon but because of the change in molecular structure, a very different appearance.
Dyeing is an application of a colored substance onto a material to change its appearence. Cotton soaked in a chemical dye is still cotton. Its just the dyes presence inbetween the fibers that has changed.
GOOD QUESTION. This is down to pigmentation variation and ultra violate pallet blends at the manufacturers. They are the dulux colour mixers of the clothing and industrial colour mixers to contact.
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