1. Choose the right ink: use high-quality ink, and avoid using low-quality ink, because low-quality ink fades more easily.
2. Correct maintenance: put the pro-signed postcards in a cool, dry and ventilated place to avoid direct sunlight, so as to avoid ink fading. At the same time, avoid putting postcards in places with magnetic fields, such as televisions and mobile phones, so as not to affect the quality of postcards.
3. Keep it clean: regularly wipe the dust and dirt on the surface of the postcard with a soft cloth to keep the postcard clean.
4. Tear-proof: Pro-signature postcards are easy to tear during transportation or display, and need to be protected by protective film or card sleeve.
In short, only by using high-quality ink, properly maintaining it, keeping it clean and preventing it from being torn, the postcards signed by the pro-will not fade.