Watermark ink&watermark paper

Описание: How does the watermark ink work?

Watermark ink is a special type of ink that is used to create watermarks on paper documents, such as currency, banknotes, and certificates, as a security feature. Watermarks are used to prevent counterfeiting and to authenticate the document.

Watermark ink contains a chemical compound that is invisible to the naked eye when applied to paper. When viewed under specific lighting conditions, such as when held up to a light source or placed on a dark surface, the watermark becomes visible. This is because the ink contains a fluorescent or phosphorescent compound that reacts to light and becomes visible.

In some cases, watermark inks also contain ultraviolet (UV) light-reactive compounds. These compounds are not visible under normal lighting conditions, but when exposed to UV light, they emit a visible glow, making the watermark visible.

The process of creating a watermark on a paper document using watermark ink is typically done during the paper-making process. The watermark ink is applied to a specific area of the paper, creating a distinct image or design. The paper is then dried and cut into sheets or rolls.

Overall, watermark ink is an important security feature that is used to protect against counterfeiting and ensure the authenticity of paper documents.

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