Knowledge Base
Articles
Get a handy introduction to instruments cover all aspects of pulp evaluation, including screening, beating and refining, freeness measurement, fiber classification and laboratory handsheet preparation in our quick guide.
Discover useful information and tips about pulp evaluation testing machines from our specialist brand, TMI Büchel.
Testing instruments for pulp evaluation are suitable for:
Solutions from TMI Büchel include the Canadian Standard Freeness Tester, the Sheet Former 73 – 6 0, Cobb Sizing Testers and more.
For further insight and information about each tool, download our Pulp Evaluation Application Information guide. There, you’ll find a full breakdown to the applications and specifications of many popular pulp testing machines from TMI Büchel.
Each instrument is presented in terms of their contribution to pulp evaluation, including the principles of application, benefits and operational characteristics.
Our specialist brand TMI Büchel is renowned for manufacturing physical property testing instruments for paper and flexible packaging – and we have many years of expertise in the evaluation of pulp. Check out our full range of TMI Büchel products and solutions.
Key terms Term Definition Gloss The degree to which a surface reflects light in the specular (mirror) direction. Higher gloss means a shinier surface. Specular reflection Light reflected at the equal and opposite angle to the incident light, as from a mirror. 75 degree geometry The measurement angle used for paper and board gloss, taken…
Gloss is the visual perception of shininess, and it comes from the way a surface reflects light. When light hits a very smooth surface, most of it reflects in a single direction, the specular direction, and the surface looks glossy. When the surface is rough or open, light scatters in many directions and the surface…
Gloss is a measure of how much light a paper or board surface reflects in the specular, or mirror, direction. A high-gloss sheet reflects light sharply and looks shiny. A matte sheet scatters light and looks dull. In the paper and board industry, gloss is a controlled optical property because it shapes how printed packaging,…
© 2026 Industrial Physics. All rights reserved. Privacy Policy Manage consent