A professional who tends equipment to mix and transfer acid bath that coagulates viscose solution into cellophane. Respnsibilities include:

• Starts pumps and evaporators to mix bath ingredients, such as acid, softener, and bleach, according to specifications, and to transfer bath solution to storage tanks.
• Observes indicators and controlling instruments and turns valves to regulate flow rate, temperature, and pressure of solution in pipelines and evaporators.
• Tests acidity of bath, using pH meter, or draws sample for laboratory analysis.
• Maintains record of bath temperature, acidity, and operating conditions of equipment.