Elements and Performance Criteria
- Confirm non-routine job specifications
- Select and prepare inks and solvents for non-routine job
- Inks and solvents are selected according to job specifications and end-user requirements
- Quality and suitability of inks and solvents are checked and appropriate action is taken
- Inks and solvents are prepared according to OHS requirements, and manufacturer's/supplier's instructions with suitable precautions to minimise waste
- Correct colour and weight/volume of ink are mixed and viscosities checked and modified according to the press requirements and non-routine job specifications
- Ink formula and approved colour draw downs are appropriately recorded
- Inks and solvents are appropriately labelled, handled and stored according to manufacturer's/supplier's instructions and the relevant hazardous liquids storage regulations
- Set up machine for specialised flexographic printing
- Flexographic plate cylinders are installed and register adjustments centred OR
- Sleeves are installed in press and register adjustments made OR
- Plate mounting sheets are mounted on cylinders in press and register adjustments made
- Plate cylinders are gauged up or pre-set to impression
- Anilox rollers are selected to suit individual colour and plate reproduction requirements for each unit
- Appropriate ink metering system is selected for each unit
- Inking system is set up and roller nips/blades are set correctly
- Ink circulation is maintained at correct level
- Viscosities are adjusted according to job specifications
- Air volume and drier temperatures are selected to suit inks, substrate, solvents and according to job specifications
- Air volume is adjusted between colours to maximise drying and minimise air overspill
- Conduct proof run
- Material to be used for proof is organised correctly
- Press is set up and operated according to OHS guidelines
- Print impressions are set to minimum kiss impression
- Web tensions are correctly set at unwind, between stations and rewind
- The print is checked for register
- Drying is checked as sufficient to key ink to the substrate
- The viscosities are adjusted to obtain the correct colour at proof speed
- Organise proof inspection and/or testing
- Troubleshoot machinery and material problems