Security Papers
- Security papers are the basic supply for the production of currency and official documents, making forging and counterfeiting as difficult as possible and economically unviable.
- Such papers, usually made from linter fibers, shall water marks, a traditional feature that can only be introduced during paper formation.
- Such papers shall also have high dimensional stability, required for the accuracy of security printing, also a highly complex and technically challenging task.
Products for this application : Dynamic Handsheet Former and VARIDIM
- The FDA, designed by the CTP in 1969, revolutionized the laboratory production of handsheets offering for the first time ever the possibility to fiber orientation, multiple layers and water marks, just like the real paper machines.
- VARIDIM is the perfect tool for quick, accurate and objective assessment of the dimensional stability of papers
Key Features & Highlights
FDA
- Large handsheet – FDA produces a large handsheet with 25 x 90 cm with a high grammage range, from 20 g/m² up 400 g/m²
- Water Mark – FDA if equipped with a proper special wire produces in the laboratory handsheets with water marks, just like real paper machines producing security papers
- Automatic Operation – FDA is operated through a user-friendly software running on a touchscreen panel, allowing manual and fully automated operation
- Complete – a roll press and dryer complete the setup for the preparation of the handsheets
VARIDIM
- Automatic Operation – VARIDIM is fully controlled by a user-friendly software running in a computer with Windows operating system, which regulates the air humidity supplied by the humidity generator for the measuring unit, and stores results as curves and figures.
- Multi Sample Testing – VARIDIM measures the dimensional stability of up to ten samples under adjustable controlled air humidity cycles
In Summary
FDA and VARIDIM embodies decades of expertise and provide unique testing capabilities required for the R&D, Q.C. and Production of Security Papers, which are advanced papers that must have specific technical characteristics and properties indispensable for its sensitive applications and high performance.