COMPOSITION AND METHODS OF TONER PRODUCTION Russian patent published in 2015 - IPC G03G9/00 G03G9/08 C08G63/00 

FIELD: chemistry.

SUBSTANCE: invention relates to toner. Toner contains oxidised bio-based polymer of amorphous polyether bio-based resin in combination with bio-based acid, crystalline polyether polymer and one or several ingredients, selected from the group, including dyes, paraffins and their combinations. Oxidised bio-based polymer has acidity index from approximately 2 mg KOH/g of polymer to approximately 200 mg of KOH/g of polymer. Amorphous polyether bio-based resin and bio-based acid are obtained from natural biological substance of vegetable origin or vegetable oils. Said amorphous polyether bio-based resin has ratio of carbon and oxygen content from approximately 2 to approximately 15. Toner consists of core of said amorphous polyether bio-based resin and said crystalline polyether polymer, and envelope of said amorphous polyether bio-based resin. Bio-based acid is selected from the group, including citric acid, citric acid anhydride and combinations, which is contained in amount from approximately 0.1 wt % to approximately 20 wt % of amorphous resin. Amorphous polyether bio-based resin is obtained from dimer diol, D-isocorbide, naphthalenedicarboxylate and dicarboxylic acid.

EFFECT: obtaining environmentally friendly toner particles.

9 cl, 3 tbl, 3 dwg, 8 ex