Paper was invented by Cai Lun in 105 AD
To prevent ink from smearing on paper, allow the ink to dry completely before touching it. Use quick-drying ink or consider using a blotting paper to absorb excess ink. Additionally, avoid rubbing the ink with your hand or fingers immediately after writing.
You can use the filter paper or chromatography paper to separate the different components in black ink.
Erasable ink contains special compounds that allow it to be easily removed from paper using friction or heat. This is different from traditional ink, which permanently bonds with the paper fibers.
The advantages of using electronic time cards include being able to be very accurate, being very efficient, as well as being helpful towards to environment by resulting in less paper and ink.
Using a pen to draw the start line for paper chromatography can result in smudging or mixing of ink with the solute being separated. This can interfere with the accuracy of the separation process as the ink from the pen may also move up the chromatogram along with the components being analyzed. It is recommended to use a pencil or non-waterproof ink to draw the start line for better results.
ink jet printer
Yes, it is possible to print white ink on black paper using a special printing process called screen printing or digital printing with white ink.
It is difficult to separate pen ink from paper without damaging the paper. One method is to try blotting the ink with a clean, dry cloth to absorb as much as possible. You can also try using solvents like rubbing alcohol or acetone, but be cautious as they can cause the ink to spread or the paper to deteriorate.
Blotting paper is highly absorbent due to its porous structure, which allows it to draw in and hold liquids such as ink. As ink comes in contact with the blotting paper, its capillary action pulls the ink into its fibers, resulting in the ink being absorbed and transferred away from the surface it was on.
Using ink or watercolors ,they painted images of nature or battles on paper scrolls or on ink
Well, for small marks, I know some professional illustrators scrape the surface of the paper with a sharp razor's edge to remove ink. This is sometimes used because white-out may not match the color of the paper used. I don't have a source to give you, though, sorry.
They would use and abacus for math, and for writing, they would use paper and ink.