Physical Fundamentals and Process Relevance The binding of water within the cellulose matrix occurs in various ways, ranging from chemically bound water to capillary-fixed moisture. During production, this content must be adjusted so that the end product meets the specific requirements of the customer. Excessive moisture content reduces stiffness and tensile strength, while a value that is too low makes the paper brittle and increases the risk of breakage during folding processes. Furthermore, the economic aspect plays a significant role: since paper is traded by weight, moisture represents a direct economic factor. Precise adjustment also conserves energy resources in the dryer section of the paper machine, as any unnecessary over-drying increases production costs exponentially.
Methodology of Analytical Moisture Determination Although inline measuring systems continuously monitor the moving paper web, gravimetric analysis in the laboratory remains the indispensable reference standard. In this process, the sample is thermally treated until constant weight is achieved. The difference between the initial weight and the back-weight defines the exact water content. In this demanding environment, the PCE-UX 3081 moisture analyzer has established itself as the optimal measuring device for the paper industry. It bridges the gap between the time-consuming oven-drying method and the speed required in production-related analytics.
By utilizing state-of-the-art halogen heating technology, the PCE-UX 3081 enables particularly uniform heating of the paper sample without thermally damaging the organic structure of the fibers. This is crucial to prevent falsification of measurement results through decomposition processes. The high-precision integrated load cell delivers data at a resolution that reliably captures even the finest nuances in specialty papers or coated grades. Thanks to its robust design and intuitive user interface, the device can be seamlessly integrated into daily operations, while the digital interface ensures complete documentation for auditing purposes and certifications.
Summary and Outlook Mastering material moisture is the foundation of trouble-free paper processing. Technological solutions that combine precision with efficiency are indispensable for companies to remain competitive in the global market. The PCE-UX 3081 offers a scientifically sound yet practical solution that meets the highest requirements for reproducibility. In an industry where nuances decide marketability, this instrument secures the necessary database for excellent product quality.
