Analyzing cellulose

The analysis of cellulose in pulp mills is of paramount importance in ensuring the efficient operation of such facilities and the attainment of high-quality pulp production. One of the most critical factors to be considered is the raw material used, namely the wood.

What is cellulose?

Cellulose is a natural polysaccharide that constitutes the primary component of plant cell walls and is the most prevalent organic compound on Earth. The utilisation of the material under discussion is predominantly focused in the paper and textile industries, in addition to its employment as a sustainable raw material for bio-based materials and products.

Pulp product analyses

In order to guarantee the production of pulp of a satisfactory quality, it is imperative that precise analyses of fibre and pulp are conducted. The following measurements are offered:

The physical properties which are to be considered are as follows: the beating degree (°SR/CSF), the WRV, the sheet, the basis weight, the thickness, the density/bulk, the strength and the air permeability.

Chemical analyses: The parameters under consideration are as follows: carbohydrates, extract content, phenolic groups, fibre charge, kappa number, metals, viscosity and leachable COD/TOC.

Wood

Wood characterisation includes analysis of chemical composition, structure, physical and mechanical properties. We offer measurement of:

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, Kappatal, Fock's reactivity, hexanal.

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

In addition, analyses of wood and pulp are conducted, encompassing the assessment of alpha, beta and gamma cellulose, along with the presence of contaminants such as stains and dirt.

Fiber dimensions

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

By analysing fibre length, diameter, curl, coarseness and other key parameters, the performance and suitability of the pulp for different applications can be effectively assessed.

Analyze fillers in cellulose

RISE offers evaluation of fillers in paper products, focusing on several critical parameters. We analyse key properties such as brightness, pH, dryness and viscosity to assess the quality and suitability of fillers in different paper applications.