| abstract |
The present invention provides a method for producing a natural binder for ink production that does not emit volatile organic compounds and emits a large amount of far infrared rays and negative ions useful for the human body. The production method comprises a step of producing a mixture by mixing natural resin, starch, bamboo charcoal, onion extract and ethanol, a step of nano-pulverizing the mixture to produce a nano composition, A step of producing a gel composition by mixing a nano composition and water as a solvent and stirring for a predetermined time, a step of rapidly cooling the gel composition to separate it into a slurry and a supernatant, and a slurry and a supernatant And collecting the binder as a slurry, and aging the binder at room temperature. [Selection] Figure 1 |