D
TEXTILES; PAPER
D
TEXTILES; PAPER
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
D21C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C5/00
Other processes for obtaining cellulose, e.g. cooking cotton linters; ;; Processes characterised by the choice of cellulose-containing starting materials
D21C5/00
Other processes for obtaining cellulose, e.g. cooking cotton linters; ;; Processes characterised by the choice of cellulose-containing starting materials
D21C5/005
Treatment of cellulose-containing material with microorganisms or enzymes
D21C5/005
Treatment of cellulose-containing material with microorganisms or enzymes