A little insight of how the new pound notes are made. They use a transparent plastic film, difficult to counterfeit with a special coated ink layer that carries the design of the notes. Lithographic printing is the technique used to create the new £5 notes, this is a dry offset printing process used to apply ink to the polymer substrate. The silver foil patch at the bottom of the tower has a hologram of the word ‘Five’ changing to the word ‘Pounds’ and under UV light, the number 5 appears in bright red and green colours. If you shine a laser through the Queen’s neck (on the new fiver) you will also create a field of stars on the wall behind..
The new £5 notes weight 0.7g which s 0.2g lighter than the old one. The new polymer notes will melt at 120 degrees, so avoid ironing them. The new notes contain tallow which is made from cows milk, its used to stop the notes sticking together.