1. Tidal trace removal
You can use a brush or cotton swab dipped in alum solution to clean it, and the effect is very good.
Step 2 remove ink marks
Put a piece of absorbent paper under the page stained with ink, then soak the ink with 20% hydrogen peroxide solution or potassium permanganate solution, then put another piece of absorbent paper on the page and press a heavy object, and the ink traces will disappear after drying.
Step 3 remove mildew spots
Gently wipe the mildew spots with cotton dipped in ammonia water until the mildew spots are removed.
Step 4 remove fingerprints
Wipe off fingerprints with soap first, then wipe off soap traces with a wet cloth, and finally draw lines on the pages with absorbent paper to absorb water.
5. Remove insect droppings.
For example, cotton can be dipped in vinegar or alcohol, and then gently wiped on it until it is clean.
Step 6 remove oil stains
Put a piece of absorbent paper on the oil stain, then gently iron it a few times to let the oil adsorb on the absorbent paper, and the book will be clean.
It can also be wiped off with a mixture of a few drops of gasoline and magnesium oxide.
7, remove wax, oil method
Book sticky wax marks and oil stains, with two water-absorbing paper clips, lightly scald a few times, oil stains or wax marks are adsorbed on the paper, and the pages are clean.
I read in the newspaper that adding magnesium oxide to gasoline can also remove pollution.
8. Remove rust
Dip a cotton swab in oxalic acid or citric acid solution, then wash it with clear water, put it on blotting paper and dry it in the shade.
9, wet book, tide book, deformation book processing method
Books wrinkle when they are wet, so they can be treated with a steam iron. The iron should not be too hot, and the steam should be smaller. Just perm the pages wet.
If the page is only wet, don't expose it to the sun or dry it immediately. You can dry the surface with a towel or napkin, then cover the pages with a towel and press them with a weight equal to or greater than the size of the book. When the paper is dry, the wrinkles will become shallow.
Put the wet book in a plastic bag, then put it in the freezer for freezing, and finally take it out and dry it in the shade. The effect is also good.