Formulation of ecological inks based on expired spices, coffee grounds and colored bark

Abstract

<pre>his ink formulation process involves the synthesis of inks from expired spices, coffee grounds and colored bark. This process is part of environmental protection as well as the recovery and recycling of expired spices and colored bark as well as expired table oil or leftover household oil) and lubricating oil allowing them to be reintegrated into another production circuit. The formulation must use several ingredients, such as an organic solvent, a binder (oil), an additive or filler (petroleum jelly) and expired spices, coffee grounds and colored bark separated or mixed depending on the type and odor of the ink. Depending on the percentage of each reagent in the formulation, more or less dense inks are formulated, allowing the phonetic and odor liveliness of the ink colorants to be defined. The formulation considered will concern refill inks for markers in general or printing inks.< / pre>