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Analyzing cellulose wood and pulp
In pulp mills, it is of utmost importance to take into account many different parameters to ensure both efficient operation and a high quality of the pulp produced. One of the most crucial factors is the raw material used, i.e. the wood.
The quality and composition of the wood directly affects the end product, and a stable supply of high-quality wood is crucial for production.
Pulp product analyses
To ensure high-quality pulp production, careful analyses of fiber and pulp are crucial. The analyses include:
- Beating degree SR/CSF
- Water Retention Value (WRV)
- Sheet forming
- Grammage
- Thickness and density/bulk
- Tensile strength
- Bursting strength
- Tear strength
- Air permeability
Chemical analyses
- Carbohydrates
- Extract content
- Phenolic Groups
- Fiber charging
- Kappatal
- Metals
- Viscosity
- Unwashable COD/TOC
Wood- and cellulose
The characterization of wood and cellulose involves analyzing their chemical composition, structure, morphology, and other physical and mechanical properties.
Parameters that can be analyzed for characterization
- Dry content
- Size distribution
- Bark content
- Dry bulk density or bulk density
- Thickness and thickness distribution
- Length and length distribution, width and width distribution
- Metals
- Extractive substances
- Carbohydrates
- Ashcontent
Fiber dimensions
Fiber analysis is a critical component in the pulp and paper industry as it provides insights into the composition and properties of the pulp.
By carefully examining the length, diameter, curl, coarseness, and other characteristics of the fibers, it is possible to assess the performance and suitability of the pulp for different applications.
Analyze Fillers in Cellulose Products
RISE can evaluate fillers in paper products based on several important parameters. Brightness, pH, dry content, and viscosity are some of the crucial properties that can be analyzed to assess the quality and suitability of fillers in paper products.
Brightness: Measure of how much light a material reflects and is an important property for assessing the optical quality of paper. By measuring brightness, one can assess how white and bright the paper is, which is crucial for various applications such as printing and image reproduction.
pH: pH value is an indicator of the acidity level of paper and can affect its durability and stability over time. A correct pH value is important to ensure that the paper does not become brittle or yellow over time, especially if it comes into contact with archival materials or artistic works.
Dry content: Dry content is the amount of solid substances in relation to the total weight of a material and is an important parameter for assessing the concentration of fillers in paper products. By measuring dry content, one can ensure that the correct amount of filler has been added to achieve the desired properties of the paper.
Viscosity: Viscosity is a measure of how thick or thin a liquid or suspension is and can be used to assess the smoothness and consistency of the paper pulp with fillers. It is particularly important to control viscosity during the manufacturing process to ensure an even distribution of fillers in the paper pulp.
