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Secrets of the Earth
Secrets of the Ocean
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METHOD OF MANUFACTURING WATER SIGNS ON PAPER
Previously, at what time the paper was made, the master scooped out a thin, mesh-shaped, crushed, ragged liquid rag in the alkaline solution from the vat. The image of the watermark was embroidered on the grid with a thin wire. When the water was draining, fewer fibers settled on its embossed surface and the paper thinned, repeating the image of the embroidery. Thus, it was possible to operate images not only convex, but also depressed, also filigree. On paper, the image will not be thicker, only thinner than the sheet or embossed.
In machine production, the embroidered bottoms of the sieves were replaced by light cylinders also with patterns with a patterned surface - they leave their marks on a still very damp paper cloth on the pouring mesh of the paper machine. They also operate in a different way - they moisten the already prepared, dry paper, and also imprint it with a matrix or a patterned rubber roller. This watermark, unlike the real one, is called artificial or coin.