Analysis Package

Analysis package - dissolving

By using dissolving pulp as a raw material, textile companies can play an active role in transitioning towards a more sustainable and circular economy. By investing in research and development of dissolving fibers and production methods, the industry can contribute to promoting a more sustainable future for textile production and consumption.

The quality of dissolving pulp is crucial for the resulting fiber properties, such as strength, elasticity, and colorfastness. Therefore, it is important to carefully characterize and test the pulp before using it in the production process to ensure it meets specific requirements and standards for the intended use.

RISE has extensive experience and expertise in the characterization and testing of dissolving pulp and can assist companies in the textile and cellulose industries in evaluating and optimizing their raw materials for the production of high-quality fibers and products.

In the viscose pilot plant, along with the analyses listed below, individual pulps, as well as the suitability of different cellulose blends for viscose production, can be evaluated. Screening experiments can be conducted to investigate the impact of various process parameters on different dissolving celluloses and to test how well a cellulose performs under given process settings. It is also possible to evaluate different process chemicals, test various additives for fiber properties, and so on.

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.

Contact Christina Wedin