METHOD OF CONTROLLING CONTENT OF ALPHA CELLULOSE IN VISCOSE Russian patent published in 2011 - IPC D01F2/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of controlling content of alpha cellulose in viscose during production of hydrated cellulose fibre, threads and films. Content of alpha cellulose in viscose is controlled by changing the volume of carbon sulphide dosages dissolved in an alkali and softening water depending on content of alpha cellulose in the alkaline cellulose.

EFFECT: method increases accuracy of determining content of alpha cellulose in alkaline cellulose and accuracy of controlling content of alpha cellulose in viscose.

7 dwg, 2 tbl, 2 ex