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How to Make a Paper Flat Again

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Have a piece of paper you wish you hadn't sat on, wadded up, folded by mistake, or even turned into a paper-airplane? It will usually look presentable and usable after wetting it slightly with distilled water, then pressing it between heavy books, or ironing it under a towel. These methods do risk tearing and color fading, so be careful. You may wish to take important pieces of paper to a professional archivist for preservation.

  1. 1

    Mist the paper lightly with distilled water. When paper is crumpled, its fibers become damaged and torn. Water can soften these fibers so they lay flat again, reducing the visibility of wrinkles and crease lines. Only use distilled water, as ordinary tap water contains minerals that can make the paper feel crusty or hard.[1] Spray it lightly from at least one foot (0.3 meters) with a spray bottle, or dab gently with a slightly damp towel.

    • Warning: Water can ruin watercolor, chalk, pastels, and water-soluble inks. If your paper contains these materials, mist extremely lightly on the back side of the paper. Alternatively, press the paper while dry to make it flat, but not remove the wrinkle lines.

  2. 2

    Sandwich the paper between absorbent material. If the paper is wet, place it between two layers of blotting paper, wool felt, or another materials that absorb water.[2]

    • Paper towels can work, but the textured pattern on the towel may imprint onto the surface of the paper.[3]

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  3. 3

    Sandwich the stack between heavy objects. Place the paper, and absorbent material around it, on a flat, hard surface. Smooth it out with your hands to make sure there are no major folds or crease. Cover the paper completely with a flat, heavy object. A stack of large, heavy books are often used for this purpose.

  4. 4

    Wait until it dries, checking daily. The paper should dry into a flat, mostly wrinkle-free surface, but it may take some time to do so. Check on it every day and replace the absorbent material if it feels soaked.

    • Completely wet paper usually takes three or four days to dry, but a lightly sprayed piece of paper will probably take less than two.[4]

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  1. 1

    Understand the risks. Ironing a piece of paper under a towel or cloth will make it flat, but the wrinkle and crease lines will usually still be visible. If you use steam or lightly wet the paper, as described near the end of this section, this may remove the wrinkle lines, but also increases the chance of fading colored ink or tearing the paper.

    • If your paper is valuable or irreplaceable, try this method with a test piece first, or use the safer, but slower, pressing method.

  2. 2

    Set the paper under a towel or cloth. Smooth out the paper as flat as you can with your hands, to avoid setting the folds and creases in further. Lay a hand towel, pillowcase, or other heat-safe cloth over the paper, to protect it from the direct heat of the clothes iron.

  3. 3

    Set a clothes iron to a low heat. Starting at the lowest setting is recommended, to minimize the chance of damaging your paper. Too much heat can dry out the paper, making it brittle and yellow.

  4. 4

    Press the iron into the towel. Once the iron has warmed up, press it against the towel and move it across the surface, just like you would iron an item of clothing.

  5. 5

    Make adjustments if necessary. After about a minute of ironing the towel, lift the towel and look at the paper. If it is not yet flat, you can turn up the heat one setting and trying again. If the paper is already warm to the touch, leave the iron on a low setting, and instead lightly dab or spray the paper with a small amount of distilled water before you iron again. This helps remove the wrinkles, but can increase the risk of tearing.

    • Do not apply water to a paper surface with watercolors, chalk, or other water-soluble materials.

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  1. 1

    Take valuable documents to a professional. Archivists and conservator-restorers are professionals who specialize in preserving historical artifacts, including paper. They should be able to flatten and preserve all paper materials at a high quality, including watercolors, old or fragile paper, and other objects that can be difficult to safely flatten at home.

    • Search online for document archival services in your area, or ask a librarian for hep finding one.

  2. 2

    Learn about humidifying techniques. As mentioned in the other methods, wetting the paper, or "humidifying" it, can help remove wrinkles caused by torn and displaced fibers. Archivists often use special tools and extreme care to increase the humidity of the paper significantly. If you are brave, and have a few test pieces of paper to try out first, you can try to mimic some of these at home before pressing your paper. One of the easiest might be the "Horton Humidifier" method. Place the rolled-up paper in a plastic cup, open to the air. Place the cup in a plastic garbage can, add water to the bottom of the can, and close the garbage can lid.

    • This can cause mold growth on the paper, which is difficult to treat at home. Some archivists use anti-fungal chemicals such as thymol or ortho-phenyl phenol, but these materials can be highly dangerous to the user and the paper if used incorrectly.

  3. 3

    Learn about ways to hold paper while drying. Pressing the paper flat is usually effective, using vices or clamps in addition to heavy objects if more pressure is needed. Another method, which can be used alone or in addition to pressing, involves the use of glue. By gluing the paper to another surface, using a special glue that will detach easily when dry, the paper will be kept in place as it dries, instead of curling or stretching when one portion of it loses water and shrinks.[5]

    • Even archivists find it difficult to control the size change of paper after wetting. While barely noticeable for an individual sheet of paper, a stack of papers, papers glued or taped together to form a larger piece, or a bound book can feel noticeably different or uneven.[6]

  4. 4

    Store materials in a preservation envelope. One archivist's tool is widely available for commercial sale. Purchase archival-quality plastic envelopes to keep your important documents, family history, and other papers safe for decades if not centuries, protecting them from moisture and ultraviolet light.

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Add New Question

  • Question

    What's the easiest way to flatten a paper?

    Community Answer

    Put it inside a thick book and place the book under your mattress. Check it after a few hours, and it should be pretty well flattened.

  • Question

    What do I do if my paper has ink on it already. Will the water mess it up?

    Community Answer

    Put the paper in a big, heavy book and wait a few hours. Try not to use the water method.

  • Question

    Can I flatten a crumpled paper without using a spray bottle?

    Community Answer

    Yes. Place it inside a heavy hardback book, then put it under your mattress. If you leave it there overnight your paper should be flattened out by morning.

  • Question

    What if it's glued to another paper, causing it to be wrinkled?

    Community Answer

    You can do the wet method, but you have to be really careful not to wet the glue too much to avoid the papers separating.

  • Question

    My book's paper got really wrinkled. What's the most effective or easiest way to flatten it?

    Community Answer

    Use Method 1 (the one with water). Put pieces of absorbent paper in the book where the paper is crumpled and close the book. Then stack heavier books on it, then after a few hours take it out.

  • Question

    My school project paper has wrinkled a little and has been folded at the corners. Which method should I use to flatten it?

    Community Answer

    Try the ironing technique, it would work well with the corners and help reduce the folded fibers in the paper.

  • Question

    I'm using A3 paper, so some of these seem a bit hard for that size. What do you think is the best method?

    Community Answer

    Try the first method. It will work. It doesn't matter if it's A4 size paper or A3.

  • Question

    How do I remove a glued document from cardboard?

    Community Answer

    You can use the sharp blades from scissors to remove it.

  • Question

    I have to have a paper flattened by tomorrow morning. What should I do?

    Community Answer

    Place the piece of paper in a large, thick book and put it underneath your mattress. Over a couple of hours, the paper should flatten.

  • Question

    How do I flatten a crumpled paper with ink on it without water?

    Community Answer

    Put it in a large book, and put the closed book under your mattress for a couple hours.

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  • If your piece of paper isn't delicate, try putting it through a printer, but don't actually print anything. The printer will flatten out most wrinkles. Be careful; this can cause a paper jam.

  • You can also try photocopying the piece of paper. A copy shop or library may have a larger photocopier that can press the paper flatter, if a home copier still produces the appearance of faint crease lines.

  • If you don't have the time or iron to flatten it, as shown above, a simple way to get most/some of the wrinkles and creases out is to repeatedly roll the paper over the side of a desk or table. It might not expunge all mistakes but will do the job for a few wrinkles.

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  • When ironing paper printed with toner (photocopy machines, laser printers) using a high heat setting can melt the toner and make it stick to your ironing board. Start with a lower heat setting and work your way up slowly until the paper is flattened to avoid this.

  • Follow manufacturer's directions when using an iron.

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Things You'll Need

  • Clothes Iron
  • Ironing board or other suitable flat, heat resistant surface
  • Towel
  • Heavy objects
  • Spray bottle
  • Distilled water

About This Article

Article Summary X

To flatten crumpled paper, mist it very lightly with distilled water to loosen the paper's fibers without making the paper hard. Then, sandwich the paper between 2 layers of blotting paper or wool felt and weight it down between 2 books. Check it every day and replace the absorbent material if it seems damp. Alternatively, mist the paper, place it under a towel, and iron it on a low heat setting to flatten the paper without removing the creases. Keep reading to learn how to flatten special inks like watercolors without damaging them!

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