Technique: From old becomes new

Leif Tulle takes a pair of earplugs from a small plastic container and passes them over. "Please clean up," he says, waiting briefly. The man with the yellow safety vest pulls up a heavy iron door. We are already standing in the middle of a huge factory hall. It's hot and steamy. And it booms from all sides! We go up a narrow staircase. At the top, Leif Tulle points to two large tanks of steel. "These are the resolution drums. There is the old paper in it, "the specialist betrays. This includes, for example, old newspapers, school notebooks and brochures.

Leif Tulle knows about old paper. He works in a large factory where old paper is made anew. It is recycled. The expert points to the drums. There, just the waste paper is mixed with a lot of water and crushed into tiny pieces.
The next station is called Flotation. "The entire printing ink is removed there", reveals Leif Tulle in yellow vest. Carefully, he opens a small hatch. Inside is black pulp. He bubbling and foaming. The foam with the printing ink is later skimmed off. This station is enormously important.

But how is the real paper again? "In short, the water is squeezed out, and then the paper is pressed and dried," says the specialist. In reality, it is somewhat more complicated. You need a huge machine with countless rollers, rollers and presses: the paper machine.

There the paper is drained and injected onto a conveyor belt. Then it is pressed with rollers - and pressed again. Then it goes to drying and smoothing. It all happens at a crazy pace. At the end, the finished paper comes out of the machine. The worker in reflective vest notices it. It is rolled up to a big role. Now you can reuse the paper.

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