5 ways to write a message in invisible ink

5 ways to write a message in invisible ink
5 ways to write a message in invisible ink
Anonim

Do you want to keep track of your passwords without anyone being able to read them or do you want to send someone a secret message? This article will show you how to write messages in invisible ink so that no one other than you and possibly your recipient can discover their content! You will feel like a real secret agent!

Steps

Method 1 of 5: Make invisible ink with lemon juice

Make an Invisible Ink Message Step 1

Step 1. Squeeze half a lemon into a bowl

Step 2. Add a few drops of water then mix everything together with a spoon

Step 3. Dip a cotton swab into the mixture

Use it to write your message on a piece of white paper. You can replace the cotton swab with a bird feather, toothpick, fountain pen, brush or even a calligraphy pen!

Step 4. Let the invisible ink dry

Once the ink dries, your message will disappear completely!

Step 5. Put the paper that contains the invisible ink message on top of a light bulb

Hold the paper near the bulb until the message reappears. You can also put it over a flame, like a candle, but be careful not to burn the paper!

Method 2 of 5: Make invisible ink with baking soda

Step 1. Pour 60 ml of baking soda and 60 ml of water in a bowl and mix everything together using a whisk or a spoon

Dip a cotton swab in the mixture and then use it to write your message on a piece of white paper.

Make an Invisible Ink Message Step 7

Step 2. Wait for the ink to dry completely

Step 3. Dip a brush in concentrated grape juice

Then paint over the message and wait for it to reappear! You can use any obscure fruit juice.

Method 3 of 5: Write a message in invisible ink with milk

Step 1. Pour a little milk in the bottom of a ramekin then dip a cotton swab in the liquid

Step 2. Use the cotton swab to write the message on a piece of white paper

Let the milk dry.

Make an Invisible Ink Message Step 11

Step 3. Let the post dry for about 30 minutes

Make an Invisible Ink Message Step 12

Step 4. Expose the paper to the heat

You can use a flame like a candle, a lighted bulb, or an iron. The message will appear because the milk will heat up more slowly than the paper.

Method 4 of 5: Write an invisible message with a white colored pencil

Step 1. Use a white colored pencil to write a message on a piece of white paper

Step 2. Paint over your message with water-based paint

The message will reappear then!

Method 5 of 5: Write an invisible message without ink

This method relies on the pressure and indentation of the paper.

Step 1. Superimpose two sheets of paper

Place one on top of the other.

Step 2. Write your message on the top sheet

Press down hard on the pen while writing.

Step 3. Remove the 1st sheet

Step 4. Gently blacken the 2nd sheet with a pencil

The message will appear, much like chalk on a board.

WikiHow Video: How to Write a Message in Invisible Ink

To concern

Advice

  • If you don't have a white pencil, you can use a white candle to write your invisible message. Then paint over the message with water-based paint (as if you had used a white pencil).
  • To read a message written with lemon juice or milk, you can also place the paper under a piece of cloth and iron it to make the message reappear. Another method is to put the paper in an oven heated to 180 ° C for a few minutes, until the message reappears.
  • For the lemon juice method, it is better to use black paper.
  • For the white pencil method, it is not mandatory to heat the paper, you can simply hold it in front of a window in broad daylight. The message will be less visible, but you will still be able to read it.
  • Don't add too much water!
  • Make sure you don't add more baking soda than water.
  • For the method with the white pencil, it is not necessary to paint the message, you can color it with a dark colored marker.

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