Keep paper books for a long time? How to store books?

At present, the main methods of paper preservation are:

Dip the wax, put the paper into the liquefied wax, and dry it after waxing, so that it is not afraid of mold, insects, moisture, and rot.

Soak in oil, put the paper into liquefied wax, and after waxing, take it out and dry it and seal it for storage, afraid of insects.

Over-plastic, over-plastic storage with plastic film, fear of wrinkles, over-plastic film aging, the above can be stored for thousands of years when properly preserved.

Whole book storage method: generally use the sealed storage method like the Dunhuang Book Cave and the Yale Shalen Bible.

In modern times, the whole book is generally molded.

We normally write practical paper, and if it is a diary, it is no problem to put it for twenty or thirty years. Be careful not to expose to direct sunlight and do not place in places with high temperature and humidity. Gently turn it often to avoid insect damage.

If you are still not at ease, don't write too hard when writing a diary, and put transparent glue on the margins to protect it.

It's okay to keep it dry, sometimes the more you care about the moon, the easier it will be to wear it out!

Pay attention to sun, moisture, mildew, and insects.

Keep it dry and keep it in a bookcase, free of insects.

The simplest way is to turn over more and not get moldy and rotten.

A dry, clean environment is fine.

If there is any preservation value, you can try these preservation supplies.

Spray some air freshener where you put your books.

Keep dry air circulation.

It's good to pay attention to yourself.

Take some mothballs and put them together, which is the chemical theory of naphthalene.

If you want to keep books reasonably in your daily life, usually we don't eat when we are reading, and some people may eat while reading a book, or even put a napkin directly next to it. I have to say that if you eat while reading a book and taking it in the morning, it may have a serious impact on the paper of the book.

01 In fact, when we are reading a book, there may be detailed content on each page, if you want to mark it at this time, it is recommended to use bookmarks directly, and do not fold the book, which will affect the overall quality of the book after folding.

02 When reading a book, you must pay attention to relevant details, such as closing the book when you don't read it. If we can't close the books in time, it may cause damage to the books, and we also need to pay attention to the posture of reading the books when we read them.

03 Of course, people also need to keep books reasonably in their lives, and generally put books in a dry place. Usually many friends find that the books are slowly stored too much, and the bookshelves can't fit the debate birds, but we don't put the poor wisdom books in a damp place.

04 There may be some books that will shorten the service life if you want to preserve them effectively. If there are e-books in this type of book, then you can also try to use the e-book to read the book.

For how to store books, it is especially necessary to solve the following three problems that affect the life of books:

1. Anti-aging.

The aging and brittleness of books does not depend on the length of time they are stored, but on how well they deal with the acids contained in the pages. It has been found that some of the books published in Europe in the 15th century have survived to this day because the paper was made of cotton and linen, had a neutral pH, and contained calcium carbonate, which prevents acid formation. In modern society, most books are made of wood, and the plant fibers in the paper lose their strength and adhesion when they are damaged by acidic water, and the acid in the paper mainly comes from the aluminum sulfate that pulps the paper.

When the paper begins to get wet, the aluminium sulphate begins to produce sulphate and hydronium hydrate ions, and finally forms an acidic substance that erodes the paper. Sulphur oxide and cyanide oxide in polluted air can also react with water or plant fibers to form acids. Therefore, to prevent books from aging and becoming brittle, the main thing is to remove the acid in the paper.

The most common method now is to soak the book in a solution of magnesium bicarbonate or calcium bicarbonate and then dry it. In doing so, the acid in the paper is neutralized and the acid reaction is prevented from occurring later.

2. Insect control. Sometimes small insects grow on books, which seriously jeopardizes the lifespan of books. The way to prevent insects is:

1.The place where the books are stored should be clean, dry and well ventilated; There should be no cracks in the shelves, walls, or floors.

2.The temperature of the book collection should always be kept at 620 and the humidity should be kept between 50 and 60.

3.Books in your collection should be moved around frequently, even if they are not used often, and they should be turned regularly.

4.On the bookshelf or in the bookcase, you can put some wrapped hygiene balls.

3. Decontamination. Stained books will not only shorten the life of the book, but also affect the effect of reading. The method of decontamination is:

1.Remove grease: Put a piece of absorbent paper on the oil stain and gently iron it several times with an iron to absorb the oil. It can also be erased with a few drops of a mixture of gasoline and magnesium oxide.

2.Ink removal: At the bottom of the page stained with ink, first pad a piece of absorbent paper, then soak the stain with 20 hydrogen peroxide solution or potassium permanganate solution, and then put a piece of absorbent paper on the top of the page, and press a heavy object, and the ink will disappear after drying.

If brown spots occur with potassium permanganate solution, they can be removed with oxalic acid or citric acid solution.

3.Mold removal: Dip cotton in ammonia and gently wipe on the mold until it is removed.

4.Finger prints: Rub off finger marks with soap, then wipe off soap marks with a damp cloth, and finally line absorbent paper between the pages to absorb the water.

5.Remove fly stools: Dip cotton with vinegar or alcohol and gently wipe on fly stools until the stains are removed.

6.Dirt removal: It can be removed with oxalic acid or citric acid, and then blotted dry with absorbent paper.

7.Rust removal: can be removed with oxalic acid or citric acid.

8.Dust removal: Books that have been on the shelf for a long time will turn black due to dust, and it is not easy to wipe off. Blow off the dust first, and if you can't blow it off, you can use a fresh bread crust (preferably a little wet and sticky bread crumb) to wipe it, this method can suck off the dust on the book and keep the original whiteness.

1. If you want to keep a piece of paper for a long time, you can buy a kind of transparent hard rubber sleeve to pack the paper, and then put it in a dry, cool and high-altitude ventilated place. In this way, the catalytic effects of temperature, humidity, light and other substances can be isolated, and the paper can be stored for a long time.

2. The raw materials of paper are mainly plant fibers, and in addition to the three main components of cellulose, hemicellulose and lignin, there are other components with less content, such as resin and ash. In addition, there are auxiliary ingredients such as sodium sulfate.

Step Method.

The bookcase should be placed in a ventilated place, and the bookcase should not be arranged in a place where the sun shines, the temperature is too high will make the books yellow, the environment in which the bookcase is located should be relatively dry, and the walls and floors near the bookcase should not have cracks, and should not be too close to the wall or ground.

The temperature difference between the room where the bookcase is located should not be too large, it is best to keep it at 16 to 20 degrees Celsius, and the relative humidity is best to be 50% to 80%, too high humidity will make the books easy to mold.

Don't bundle the books in a bundle, and don't arrange them too tightly in the bookcase, otherwise the books are prone to booklice and moths, and the books that are not often used should be turned frequently, and the bookcases should be kept clean, and an appropriate amount of mothballs can be placed in the bookcase.

Precious books should be placed in a book cover or book box or book bag (paper is better) first, and then put in the bookcase.

Use the leaves of fragrant plants to make bookmarks, which can prevent moths, grind Sichuan pepper into powder, put the powder in a piece of cloth, and place it in the bookcase to prevent the book from being damaged by cockroaches or moths.

The bookcase should be cleaned regularly, regularly check whether there are any moths or mildew in the books, if the mold can be wiped with carbon tetrachloride, in the mildew rainy season or after the wet weather, the books should be opened and taken to a ventilated place to dry

Seal, put mothballs, and protect from light to keep it for a long time.

The retention period of electronic documents depends on the type of project.

**Procurement documents are for fifteen years. In the bidding project of the enterprise, the retention period of the bidding documents of the construction project is permanent; For other projects, the bidding documents and materials of important materials should be kept for 30 years, and the general materials should be kept for 10 years.

Electronic documents refer to files generated in digital devices and environments, stored in digital form on tapes, disks, optical discs, and other carriers, and relied on computers and other equipment to read and process, and can be transmitted on communication networks. In the newly promulgated national standard "Code for Filing and Management of Electronic Documents", electronic documents are defined as:"Electronic documents refer to the documents formed in digital equipment and environment, stored in digital form on tapes, disks, optical discs and other carriers, relying on computers and other digital devices to read and process, and can be uploaded to the communication network to send documents sent by Youwang. "