Analysing cellulose

To ensure pulp of satisfactory quality, precise fibre and pulp analyses are essential. The following measurements are offered:

Physical properties: beating degree (°SR/CSF), WRV, sheet, basis weight, thickness, density/bulk, strength, and air permeability.

Chemical analyses: carbohydrates, extract content, phenolic groups, fibre charge, kappa number, metals, viscosity, and leachable COD/TOC.

Wood and biomass feedstock characterisation involves analysing chemical composition, structure, and physical and mechanical properties:

Basic parameters: dry content, size distribution, bark content, density, thickness and distribution, fibre dimensions.
Chemical analyses: metals (e.g. calcium, copper, iron, zinc), carbohydrates, lignin, extractives, ash content, organic chlorine, oxalic acid, carbonyl end groups, uronic acids.
Physical properties: viscosity, fibre charge, fibre length and wall thickness, conductivity, pH.
Specific tests: alkali resistance, molecular weight distribution, wash loss, leachable COD/TOC, Kappa number, Fock’s reactivity, hexanal.

We also perform wood and pulp analyses, including alpha, beta and gamma cellulose, as well as contaminants such as stains and dirt.

Fibre analysis is a vital process in the pulp and paper industry, offering valuable insight into pulp composition and properties.

By examining fibre length, diameter, curl, coarseness and other key parameters, the performance and suitability of the pulp for various applications can be accurately assessed.

RISE provides evaluation of fillers in paper products, focusing on critical parameters. We assess key properties such as brightness, pH, dryness and viscosity to determine the quality and suitability of fillers for various paper applications.