How to clean the dirty book cover?

Wipe off the traces with a damp cloth.

If you accidentally get rusty stains on the page, you can use oxalic acid or citric acid to remove them. If there are wet stains on the page, you can use fried dough sticks to remove them with alum aqueous solution, use a rubber dropper to drop a drop or use a small cloth to print.

If you get grease, put a piece of absorbent paper on the stain and iron it gently several times until it is absorbed. If there is ink, put a piece of absorbent paper under this page, soak the stain with 20% hydrogen peroxide solution, and then press it with a heavy object. When it dries, the ink will disappear.

Extended data:

Precautions:

1, finished book cover: users can buy their favorite book cover from the stationery store for packaging, which is very simple and beautiful.

2. Hard paper: You can choose your favorite hard paper or gift paper, and you can use the traditional Bao Shu paper method.

3. Tape: The book cover is tightly wrapped with tape, which can also play a waterproof role.

4, the book should be placed in a cool and ventilated place, avoid direct sunlight and avoid humidity.

5, regular drying: the book is easy to deform after being put for a long time. . It can be broadcast when the weather is fine.

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