Extraction and Optimization of Natural Dye from Hambo Hambo (Cassia singueana) Plant Used for Coloration of Tanned Leather Materials

Table 2

Absorption values of dye solution from bark of Cassia singueana.

Number; of trials	Temperature (°C)	Concentration of the bark powder (g/l)	Time (min)	Absorption
Trial 1	45	20	60	2.25
Trial 2	45	20	30	1.8
Trial 3	45	60	30	3.7
Trial 4	45	60	60	3.6
Trial 5	75	40	45	3.49
Trial 6	95	60	30	3.05
Trial 7	95	60	60	3.9
Trial 8	95	20	60	2.25
Trial 9	95	20	30	1.9