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It has to do with the difference in affinity between the dyes that make up the ink or food coloring and the blotting paper compared to the solvent. This is paper chromatography. The dyes are carried along by the solvent (water) but is attracted to the substrate (the blotting paper). Some inks travel faster than others.

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A drop of ink spreads on a blotting paper?

may be because the paper isn't of good quality


Ink from an ordinary fountain pen spreads if water is spilled on pagewritten on paper does not spread when water is spilled on it?

Are you asking why ink spreads and paper doesn't when water is spilled on a page? Ink is water soluble so it dissolves and spreads. Paper is not water soluble (although it will get soggy) so it doesn't dissolve.


What is it called when ink with water spreads?

It is called ink bleed or ink spreading. When ink comes into contact with water, it can spread and create a blurred effect on paper.


Why does a drop of ink spread over a blotting paper?

The reason a drop of ink will spread over blotting paper capillary action.


What will you observe when a drop of ink is added to a beaker filled with water?

You should try it and see. Go to the kitchen, get a clear glass of water, and add a drop of food colouring to it. Or ink, if you have it. It's probably how quick the ink spreads through the water


Why ink drop spread on blooting paper?

When an ink drop is placed on blotting paper, the paper absorbs the liquid due to its porous nature. The capillary action of the paper pulls the ink into its fibers, causing it to spread and create a larger, more diffuse shape. This spreading occurs because the ink is drawn along the paper's fibers by surface tension and absorbency.


What happen with drop of oil on a paper?

When a drop of oil falls on paper, the paper absorbs some of the oil while the oil spreads out and is eventually absorbed by the paper due to capillary action. The oil can leave a stain on the paper as it is absorbed.


How do you get ink pen out of microfiber?

A drop of hand sanitizer, rub with a paper towel or cloth.


what scientific principle pen has?

Pens operate on the scientific principles of gravity, capillary action, and fluid dynamics. Gravity helps the ink flow from the pen to the paper, capillary action ensures the ink is drawn towards the paper through a narrow tube or point, and fluid dynamics govern how the ink spreads and dries on the paper.


How does ink jets works?

Ink jet printing used small drop of ink to print onto paper. These dots are extremely small, and print in a dot matrix pattern on the paper. Different colors of ink are combined together to make photograph quality images.


How does jets work?

Ink jet printing used small drop of ink to print onto paper. These dots are extremely small, and print in a dot matrix pattern on the paper. Different colors of ink are combined together to make photograph quality images.


If a drop of ink and a drop of honey are place in water which spreads faster?

Oh, dude, like, the drop of ink will totally spread faster because ink is all like, "I'm in a hurry to get everywhere," while honey is just chillin' like, "I'll get there eventually, no rush." So, yeah, ink for the win in the speedy spreading competition in water.