Preparing Erasable Ink for Whiteboards from Local Sources in Misrata City

Abstract

This research aimed to produce erasable ink from pigments sourced locally that could compete positively with available brands . in this research , the ink was produced for the first time locally By mixing pine resin ( the basic material for these inks ) with pigment , deionized water, ethanol , and phenolphthalein , and heating the mixture to 60oC The ink was cooled and filtered through filter paper . Glycerol . was used to improve the ink s quality in terms of viscosity, consistency , and ease of erasing . two different ink formulations , A and B , were produced and subjected to physicochemical analysis to ensure their conformity to standard specifications . the results obtained were : PH ( 5.6, 7.34 ) , viscosity (0.001692 N/m2, 0.00519 N/m2  ) , and drying time (5.24 ,7.32 second ) for samples A and B, respectively . sample A exhibited superior properties in terms of drying time, viscosity, and erasing . the pigments used were carbon soot , obtained from the carbonization of local sheep wool, used as the black ink pigment, and indigo blue, used as the blue ink pigment. Samples of the laboratory – prepared ink and the ink available on the local market were also taken and subjected to x-ray analysis. The results showed the concentrations of the various elements present in the ink could be compared to the concentrations of standard available ink[1].