The Improvement Of Carbon Black From Waste Tires For Offset Printing Ink Using Coupling Agent

Abstract

This work was aimed to improve the carbon black from waste tires for printing ink using coupling agent to disperse carbon black particle for making an oil-based offset ink. This experiment used 2 coupling agent, these were silane coupling and derivative fatty acid and used to produce offset inks for the 7 formulas. Formula 1 Commercail carbon black,Formula 2 carbon black was not washed by Nitric acid, formula 3 carbon black was not washed by Nitric acid and was added silane coupling agent, formula 4 carbon black was not washed by Nitric acid and was added fatty acid modified emulsifier , formula 5 carbon black was washed by nitric acid, formula 6 carbon black was washed by nitric acid and was added silane coupling, formula 7 carbon black was washed by nitric acid and was added fatty acid modified emulsifier. Bring all 6 formulas to test property to compare with offset ink commercial. First find the smallest particle of carbon black for 90 minutes. It was found that formula 4 took 20 minutes to make particles 12 micron and it is smalles particle of all. Then measured ink flow by Spread-O-Meter and measured diameter after 1 minute. It was found that formula 3 and 3 were 77 mm. and approximate commercial ink. Then measured tack of ink with Ink-O-Meter, it was found that formula 2, 3, 4, 6 and 7 were 2.4 and formula 5 was 2. Then measured viscosity and yield value of ink by Lary viscometer. It was found that formula 2 had 77 poise of ink viscosity and 670 dyne.s/cm2 of ink yield value that was approximate commercial ink. Finally measured Emulsification capacity (%) by Kershaw Water Pick up Tester. It was found that formula 6 had 74% and it was approximate commercial ink.