Most Security Papers are \u201cUV (Ultra Violet) Dull\u201d, often termed as \nOBA Free, and do not glow under UV light as normal commercial papers do.<\/p>\n\n\n\n
OBA stands for Optical Brightening Agents which are bleaches and \nother means of making the paper appear whiter. This is the reason most \nwatermark papers are off-white in colour and is essential if invisible \nUV fibres or UV printing is to show up clearly on the paper surface.<\/p>\n\n\n\n
As well as preventing the counterfeiting of documents, security \npapers also help detect fraud whereby attempts are made to alter the \ndata entered onto a document, whether it be changes to the value of a \nBank Cheque or to the examination grades or candidate\u2019s names on \nCertificates, there are numerous areas where this is essential to a \ndocuments integrity.<\/p>\n\n\n\n
Removal of laser printed data has become a greater threat as more and\n more organisations print their variable data in-house on desktop \nprinters.<\/p>\n\n\n\n
The incorporation of laser adhesion surfaces and special varnishes \ngreatly diminishes the ability of toner removal and many security papers\n specify this as standard.<\/p>\n\n\n\n
There are also special taggants incorporating a chemical \u201cDNA\u201d that \ncan only be decoded by special means and act as a unique identifier for \nthat material.<\/p>\n\n\n\n
These can be electronically read to give and instant remote \nverification, particularly useful in the packaging and mass transit \nindustry.<\/p>\n\n\n\n
Since the introduction of digital copying and printing it has never been more important to use secure materials such as watermarked papers to give tangible and tactile credibility to valuable and sensitive documents.<\/p>\n\n\n\n
True Watermarks | Artificial Watermarks<\/strong><\/p>\n\n\n\n Watermarks can be used on documents to provide an effective form of \nprotection against counterfeiting. The watermark images are invisible or\n difficult to view unless held up to the light or held at a 45\u00b0 angle. \nThey can be applied as a true watermark which is applied to the paper \nduring the manufacturing process or as an artificial watermark which is \napplied by a printing process. Either type of watermark provides a \nsecurity feature that is difficult, if not impossible, to copy by \ncopiers and scanners. Shown below is a description of a true watermark \nand an artificial watermarks.<\/p>\n\n\n\n True Watermarks<\/strong><\/p>\n\n\n\n True watermarks are made during the paper manufacturing process. An \nimage is formed when different degrees of pressure are applied to the \npaper by a dandy roll, containing the image, while the paper is still \nwet. True watermarks are also referred to as fourdrinier watermarks. \nSecurity paper with this feature is distributed only to authorized \nmanufactures, making it difficult for counterfeiters to obtain.<\/p>\n\n\n\n Artificial Watermarks<\/strong><\/p>\n\n\n\n Artificial watermarks are applied after the paper manufacturing \nprocess. They can be applied by the paper manufacturer or by the \nprinter. Many paper manufacturers offer stock security papers that have a\n standard artificial watermark applied to them. The cost of the security\n paper with an artificial watermark is generally a little less expensive\n than one with a true watermark.<\/p>\n\n\n\n![\"\"](\"https:\/\/dns-iran.com\/wp-content\/uploads\/2019\/01\/SecWMtrue1-1.gif\")
<\/figure><\/div>\n\n\n\nA true watermark is visible from the front and the back of the paper when viewed in regular light. The image of a true watermark cannot be copied or scanned to produce the same effect. The inability to be copied or scanned provides, to your document, a high level of security against counterfeiting<\/td><\/tr> \n\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n True watermarks are most often a standard watermark applied by the paper manufacturer but can be applied as a custom application. A custom watermark will add extra security to your document by making it next to impossible for the counterfeiter to obtain your special watermarked paper. There are a few things to keep in mind when considering the use of a custom watermark. A dandy roll must be special ordered with the custom image that is to be applied. The cost of the custom dandy roll can add a substantial amount to the initial cost of the paper but is usually a one time charge as long as the image does not change. The cost per hundred weight of the paper may also be affected. There are generally additional setup charges from the mill, minimum order requirements, and extended lead times on delivery of the paper. These issues need to be considered when determining the value of a custom watermark.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n An artificial watermark can be seen from one side only.\n It is generally applied to the back side but can be applied to the \nfront side also. The watermark is achieved by printing the image in \nopaque white ink, transparent ink or by using varnish. They will all \nproduce an image that is visible when viewed at an angle. An artificial \nwatermark is sometimes also referred to as ghost printing. Artificial \nwatermarks are nearly impossible to duplicate by copier or scanners, \nmaking this a good security feature to add to your documents.\nAdding a customized artificial watermark to your document will make \nit even more difficult to duplicate. Customizing an artificial watermark\n is less expensive than customizing a true watermark. The customizing \ncan be accomplished by the paper manufacturer or the printer. The most \ncost effective alternative will depend on the quantity of watermarked \npaper needed. Consult your supplier as to what would be the best \nalternative for your needs.<\/td><\/tr>
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