The tapes of synthetic and natural fibers tend to fray and separate at the edges. You can extend the life of your ribbon by cutting it diagonally and applying heat, nail polish or glue to the edges.
Steps
Method 1 of 3: Applying Nail Polish
Step 1. Find some very sharp fabric scissors
The sharper the scissors, the better the edge of the tape will be.
Step 2. Measure the length of your ribbon
Trim the edge at a 45 degree angle, or cut it in an inverted "v" shape to minimize fraying.
Step 3. Buy clear nail polish
Use a quality brand that you trust and that you know promotes long life.
Step 4. Dip the nail polish brush into the bottle
Clean the brush on the edge of the bottle to remove excess nail polish.
Step 5. Apply a thin layer to the edges of the tape
You can hold the ribbon in one hand and swipe the brush across the edge, or hold it flat and swipe the brush over one side, then flip it over and swipe the other side.
Step 6. Grab it and hold it up to make sure it doesn't stick to any surface
Step 7. Repeat one more time for extra hold
Try not to apply a thick layer or a layer that goes over the edge. It can make the tape look dark and wet if applied too heavily.
For best results test a small piece of tape before you begin to make sure it doesn't damage the surface
Method 2 of 3: Using Liquid Glue / Spray
Step 1. Purchase an anti-lint spray or liquid from a haberdashery or online
If you plan to wash the tape frequently, this is the best option. Choose clear liquid glue if you can't find anti-lint liquid.
Step 2. Cut your ribbon at a 45 degree or reverse "v" shape if possible
Step 3. Squeeze a small amount of strong, clear glue out of the bottle
Step 4. Dab it with a cotton swab
Twist the tip in a paper towel to remove excess liquid.
Step 5. Slide the cotton swab against the edge of the ribbon on each side
Step 6. Suspend it until it is dry enough or hang it on a clothesline to make sure it doesn't stick to any surface
Method 3 of 3: Heat Seal the Tape
Step 1. Make sure the tape you want to seal is synthetic
Most of the satin and grosgrain ribbons sold in haberdashery are synthetic. Jute and cotton ribbons cannot be heat sealed.
Step 2. Light a candle near a sink or bucket of water
Throw the tape into the bucket if it catches fire. Open a window.
Step 3. Cut your ribbon with 45 degree fabric scissors to minimize fraying
Step 4. Hold the edge of your ribbon between your index and middle fingers
Your fingers should be as far apart as possible to still allow the tape to stand straight to the side.
Step 5. Bring the far edge of the ribbon to the flame
In most cases it doesn't need to be inside the flame for the edge to burn. Move quickly and firmly close to the edge.
Step 6. Hold it between your fingers to let it cool down
Run your fingers along the edge after 30 seconds. It should be stiff where you sealed it.
