What is the watermark?

The watermark is a picture that appears on fine paper or some documents to prevent counterfeiting. The watermark is designed to appear only when the paper is held at a certain angle or against a black background. Standard paper usually does not include watermark because the production of watermark will increase the cost of paper. Fine Arts use watermarks to identify manufacturers and companies such as banks, often use specially labeled paper to secure. During the paper production process, a real watermark is used using a special tool called Dandy Roll. Dandy Roll is pressed against paper pulp while dried, and signs on the dandy roll are transferred to a paper pulp and creates a picture. This picture is called watermark because it is produced while paper pulp is still wet with water.Rcess. Artificial watermarks are produced using specially formulated inks or varnishes that appear only at certain angles or under certain conditions as to howo is black light. These watermarks are cheaper than real watermarks and can be easily adapted for individual use. It is also easier to pretend to be qualified for counterfeiters. Personal checks and official documents, such as passports, often use artificial watermarks.

For an example of a safety watermark, hold a piece of currency to the light. When you turn the paper to change the point of view, a weak image appears. Depending on the nationality and the marking of the currency, the watermark changes: but you will notice that it is difficult to pretend. The currency usually uses real watermarks combined with specialized engravings to minimize the risk of copying.

When applied to art art papers, the watermark will say consumer, which produced paper and ensured some quality. The manufacturer's watermark is usually a stylized logo, although in some cases watermark can contain general information about paper such as recycled content and nameEv paper. Sometimes artistic papers can use a watermark to create a unique pattern that covers the entire sheet of paper. Such so -called storage papers often have a fine grid of lines or other such decorative pattern.