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Humanities
- ISSN: 2155-7993
- Journal of Modern Education Review
Production of Tri-Color Printer Ink by Natural Pigment Extraction
Norli Binti Uma, Nitiyah A/p Krishna Kumar, Stefina Edora Ak Pelias Po, Senorita Samy Ak Minggat, Gladys
Meryl Ak Gopr, Norain Binti Kamal
(Department of Petrochemical Engineering, Kuching Polytechnic Malaysia)
Abstract: The usage of inkjet printer is no doubt a paramount necessity for current society. This essential is rather expansive and overpriced that leads to this research which is to study an economical, simple, as well as bio friendly method in producing ink for printers. Used cooking oil was treated by filtering the oil from debris and the oil was heated with ginger for 2 hours. Ethanol was mixed with oil to remove polar substance before it is mixed with colour pigments. Tri colour ink that has been selected are yellow, red and blue. Yellow colour was extracted from turmeric herb (curcuma longa), red colour from roselle flower (Hibiscus sabdariffa) and finally blue colour from Asian pigeonwings flower (Clitoria ternatea). All of the plant was washed first to discharge any dirt, then it is dried to remove moisture and crushed to increase surface area for maximizing colour extraction. Water was used to extract the colour by allowing the solvent to percolate the plant for several hours. The extracted pigments will then be mixed with recovered used cooking oil at the ratio of 1:1. To test the efficiency of the ink produced, pH analysis, boiling point and testing of produced ink in a printer has been carried out. The result shows that the ink produced is as outstanding as commercial ink as it is acidic, possess high boiling point at 75°C and it was able to operate successfully by commercial Hewlett-Packard printer. It dries as fast, produce not just three main colour but as well as other colour that can be chosen from printing options in computer and as an added value, it is unexceptionally biofriendly to nature.
Key words: pigment extraction, used cooking oil, ink
