German

Subcommittee 1: Dissolving pulps


Investigations regarding the following specifications have been carried out:

2.         Chemical properties
2.1.      Chemical composition
2.1.1.1. Carbohydrates
2.1.1.3. Residual lignin, Kappa number
2.1.2.3. Determination of silica in pulps
2.2.      Macromolecular properties
2.2.1.    Molar mass distribution
2.2.2.1. Carbonyl groups, copper number
2.2.2.2.
Carboxyl groups
2.2.2.3. pH-value

 

3.          Physical properties
3.1.       Single fiber
3.1.1.    Water retention value
3.1.2.    Fiber length
, -distribution, -thickness
3.2.      Pulp sheet
3.2.1.   Optical properties
3.2.1.1. Dirt count
3.2.1.2. Brightness
3.2.3.    Moisture content
3.2.4.    Grammage, thickness, density

 

4.        Applicationtests
4.1.     Viscose
4.2.     Cellulose ethers
4.2.1.   MHPC: Methylhydroxypropy lcellulose
4.2.2.   MHEC: Methylhexylethyl cellulose
4.2.3.   CMC: Carboxymethyl cellulose
4.3.      Ester: Cellulose acetate

 

5.       Further processing-relevant properties
5.1.     Alkali resistance