2. Any one of sodium hydrosulfite, bleaching powder or hydrogen peroxide can effectively remove ink spots on white clothes.
3. Ink stains on white clothes can also be wetted with tap water first, then with a slightly hot mixed solution of 3% hydrogen peroxide and 10% oxalic acid, and then washed with clean water.
4. For the blue-black ink stains on clothes, 1 part citric acid,1part distilled water and 2 parts concentrated borax solution can be used to prepare a remover. During preparation, citric acid is first dissolved in distilled water, then concentrated borax solution is added and mixed evenly. Dip this medicine with a brush and apply it to the blue-black ink spots on clothes, then use absorbent paper to absorb the excess solution, and then rinse with tap water after removing the ink spots.
Extended data
Ink is a liquid containing pigments or dyes. Ink is used for writing or painting. The earliest inks were dyes made of metal, walnut shells or seeds, or inks made of aquatic animals such as fish and octopus. China ink is carbon ink.
Ink should be the same brand and color, and cannot be mixed, otherwise it will precipitate, which is not conducive to writing. Wear a pen cap in time after each writing, otherwise the ink on the pen tip will dry, and the water will not be smooth when writing again. If you want to use another ink, you should wash your pen and dry it before loading new ink.
Main components of pure blue ink:
1. dyes: such as acid dark blue as the main color and acid red as the color matching.
2. Stabilizers, such as sulfuric acid.
3. Preservatives, such as phenol and arsenic anhydride.
4. Wetting agents such as glycerol and ethylene glycol.
5. Solvent, mainly treated water.
Baidu Encyclopedia: Ink