Nita Kusumawati, Supari Muslim, Anang Kistyanto, Deny Arifiana
The purpose of this study was to optimize the reutilization of batik wax waste, as one of the largest components in the solid waste of batik industry, through blending method using gum rosin, paraffin, and lard. The stage of batik wax waste reutilization through modification waxs making can minimize the quantity of solid waste that is discharged into water bodies and minimizing production costs of batik industry. However, further research is needed on the blending composition that can produce high-quality dyeing result. High quality dyeing result produced in this study were evaluated using the parameters of wax latched power on the fabric and it's resistance to cracking and alkaline solution, which is widely used in the dyeing process of batik industry. Composition of batik wax waste blending with the gum rosin, paraffin, and lard in this study, varied be 100/0; 80/20; 60/40; 40/60; 20/80; 0/100 (% w/w). The latched power of wax on the fabric are evaluated based on the temperature required to remove the wax from the fabric sample. The higher temperatures are used to remove wax from the fabric, the higher wax latched power is concerned. Based on the results obtained, it is known that latched power onto modification wax 1(mixed wax waste and gum rosin) most high produced by the composition of 80% wax waste (WW)-20% gum rosin (R), where the wax can be removed from the entire sample of fabric at a temperature of 80-90 ° C. The latched power with the same pattern is also shown by modification wax 2 (wax waste-paraffin), in which a wax latched power on the sample will increase when the quantity of paraffin in the mix is getting high. The highest wax latched power resulting from the composition of the 80%WW-20%P and 60%WW-40%P, which had the ability to withstand the heat produced by a temperature range up to 70-80 °C and fully detached on the heat temperature range 80-90 °C. While slightly different results shown by modification wax 3 (wax waste-lard), where it has detected a lower latched power on the wax of this type. The removal process of modification wax 3 from the fabric sample showed that all wax compositions of these types only able to maintain their latched power until the temperature of 60-70 °C and fully removed from the fabric at a temperature of 70-80 °C. Based on the results of a resilience test of the wax against the cracking, it is known that the cracking was detected in the wax composition 20% WW/80% GR; 100% P; also 20% WW/80% L and 100% L. Meanwhile based on the result of resilience test of the wax against alkaline solution showed that all wax composition has an excellent resilience in alkaline solution.
Chemistry Departement, Universitas Negeri Surabaya, Surabaya, Indonesia; Electrical Engineering Departement, Universitas Negeri Surabaya, Surabaya, Indonesia; Economic Departement, Universitas Negeri Surabaya, Surabaya, Indonesia; Family Welfare Education Departement, Universitas Negeri Surabaya, Surabaya, Indonesia
