lampblack

Ingredients

lampblack, shellac

Preparation Steps

Original Recipe Text

The formulation for the optimized ink (S9) consists of 0.3 g lampblack and 13 mL shellac (p. 4). The pigment powder was measured using a weighing balance, and the shellac binder was measured using a measuring cylinder. The binder and pigment were first brought into a beaker and stirred with a stirring rod until fully dispersed. Then, the solvent (though in S9's case, shellac acts as both binder and solvent simultaneously as per Section 3.2, p. 6) was added and stirred for 2 hours with a magnetic stirring bar on a hot plate at 450 rpm. No specific temperature was set; the hot plate was used solely to ensure constant stirring for the 2-hour period (Section 2.2, p. 3).

Evidence

"From the evaluation, one ink was chosen to have the best characteristics of an ink (ink code S9) with formulation of 0.3 g lampblack and 13 mL shellac."

Remarks

The ink was designed specifically for Al-Quran production to ensure halal and pure ingredients. It achieved the highest score (5) in darkness, lifting, and waterproofness, and a score of 4 in soft handling and feathering (Table 4, p. 9). Shellac was found superior to acrylic emulsion because acrylic binders produced a 'sticky-like texture' that inhibited flow and turned the black pigment slightly grey due to the white emulsion (Section 3.4, p. 6). Halal guidelines for the ink emphasize raw material sources that are clean, safe, and lawful under Islamic law (Section 1, p. 2).