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Analyzes of pulp for dissolving

To see if a cellulose pulp is suitable for dissolving, it needs to be characterized and tested, which RISE can help you with.


In the viscose pilot together with the analyzes below, individual pulps, as well as the suitability of different cellulose mixtures for viscose production can be evaluated. You can do screening experiments to investigate the effect of different process parameters on different dissolving celluloses and test different how well a cellulose works at given process settings. It is also possible to evaluate different process chemicals, test different additives for fiber properties and so on.


Analyspaket för massa 

Analysis Package for pulp

  • α-, β- och γ-cellulose – A widely used course measurement of the distribution of the degree of polymerisation (DP) of the pulp. High values of α-cellulose is seen as favourable.
  • Acetone Extract – Low content of material extracted with acetone is favourable, but constant levels can be more preferable to ensure stabile processing. Many surface active additives will show up here.
  • Carbonhydrates –Characterisation of the sugar moieties of which the pulp consists, which provides information about e.g. the hemicellulose content.
  • Ash content – Measurement of the inorganic content in the pulp..
  • Metals (Ca, Mg, Mn, Fe, Cu) – Measurement of the metal content in the pulp (specifically those found to have effect on the processability).
  • SiO2 content –Often measured on pulps to ensure levels are below a set threshold, as too much silica can disturb the spinning.
  • Lignin content (Klason or acid soluble) – Measurement of the lignin content of the pulp.
  • Molecule weight distribution


Report according to agreement with customer.


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Analyzes of pulp for dissolving

Innovation area

Biorefinery, Pulp and paper, Material transition, Production and manufacturing, Textile


Price on tender


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Supports the UN sustainability goals

9. Industry, innovation and infrastructure
11. Sustainable cities and communities
12. Responsible consumption and production

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Nadine Hollinger

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