Black is a combination of all colors.
This merely depends on what color the ink is. Black ink is a mixture of at least 4 different colors.
Different kinds of ink are made for different purposes and they require a variety of properties; how easily they flow, how rapidly or slowly they dry, what kinds of materials they will adhere to, how permanent they will be, how expensive they will be, and so forth. Sometimes the most efficient way to make a black color that has the other characteristics that you are looking for is to mix other colors that together will look black. You can also use a pure black such as carbon powder or cuttlefish ink, but that may not have other properties that you want in that particular ink.
You can use the filter paper or chromatography paper to separate the different components in black ink.
Depends on the ink. Some black inks are black because they contain a single black pigment; one of the old formulations for ink was lampblack (soot) in a liquid carrier. This would make a tolerably decent science fair project; get several different "black" inks and use paper chromatography to show what pigments are in each.
yes, Egyptians did invent black ink.
Dyes of different colors in black ink can be separated using chromatographic techniques.
chromatography
Chromatography cannot be used because biro ink does not dissolve in water. I actually dont know how to separate the colors in Biro ink.. :( sorry, but look it up on google.com!
Biro ink and chlorophyll are soluble in methylated spirits
This merely depends on what color the ink is. Black ink is a mixture of at least 4 different colors.
Black....
Officejet printer ink consists of four main color groups. that can be mixed to create all visible colors. Their main colors consist of black, yellow, blue, and red.
a quill pen has mor ink than a biro
Because most black inks are made up of more than one colour. When the ink gets wet, the colours separate.
yes a biro is man made the ink is man made and the pen itself is manmade
Ladislao Biro was working as a journalist when he found that the newspaper ink was smudge-free. So he started to work with his brother, Georg, to create the Biro.
3/4 of the plastic.