AATCC Test Method 82-2012


Fluidity of Dispersions of Cellulose from
Bleached Cotton Cloth

Developed in 1954 by AATCC Committee RA34

1.  Purpose and Scope

1.1  The test procedures in this test method are applicable to bleached, unfinished cotton cloth.  The fluidity of a dispersion of bleached cellulose fibers in cupriethylene diamine solvent is a sensitive measure of the degradation of the cellulose resulting from the action of acids, alkalis, oxidizing or reducing agents.  It is therefore useful in determining the completeness of the bleaching treatment to which the cloth has been subjected, as well as the effect of chemical treatments on the tensile strength of the cloth. (Fluidity of dispersions in cuprammonium hydroxide has been dropped from this test method.)

2.  Principle

2.1  The length of chain of cellulose molecules is decreased when treated with acid, alkali, oxidizing or reducing agents, etc.  The severity of the treatment determines the extent of the shortening of the cellulose chain and the fluidity, or ease of flow, of a dispersion of the cellulose in the solvents.


Copyright © 2013 American Association of Textile Chemists and Colorists, Research Triangle Park, N.C., USA
All rights reserved.


The above information is only a summary of the AATCC test method.


Order a downloadable PDF of this method. A link to the document will appear in your emailed receipt.

Order the complete AATCC Technical Manual in print or CD format