List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
ELEMENT | PERFORMANCE CRITERIA |
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. |
1 Prepare work area | 1.1 Work area is made clean and functional prior to commencement of work 1.2 All equipment, tools and materials are inspected to ensure they are functional and, where necessary, appropriate remedial action is taken prior to commencement of work 1.3 Activating chemicals are prepared according to work health and safety (WHS) requirements and manufacturer or supplier specifications |
2 Prepare screen | 2.1 Screen is selected according to job specifications 2.2 Chemicals are applied and removed according to WHS requirements and manufacturer or supplier specifications 2.3 Tension of screen mesh is checked for suitability according to job specifications |
3 Select indirect stencil material | 3.1 Stencil material is selected according to requirements for ink type, print resolution, substrate and machine type 3.2 Stencil material is checked for faults and expiry date, and suitable action is taken |
4 Process material | 4.1 Selected material is cut to size according to job specifications with minimisation of waste 4.2 Material is placed in vacuum frame with positive positioned and intimate vacuum achieved according to manufacturer or supplier and job specifications 4.3 Exposure is calculated and stencil is exposed according to manufacturer or supplier specifications 4.4 Light source is positioned according to manufacturer or supplier specifications 4.5 Exposed stencil is removed from vacuum frame and treated with necessary activator, if required, according to WHS requirements and manufacturer or supplier specifications 4.6 Activated stencil is washed according to WHS requirements and manufacturer or supplier specifications 4.7 Exposed stencil is inspected for processing flaws |
5 Apply stencil to screen | 5.1 Prepared screen is re-wet and inspected for cleanliness and dust 5.2 Stencil is positioned and adhered accurately according to manufacturer or supplier specifications |
6 Dry stencil | 6.1 Processed stencil is dried according to manufacturer or supplier specifications 6.2 Backing sheet is carefully removed and stencil is checked for full adhesion |
7 Block out screen | 7.1 Stencil is inspected for flaws, scum and orientation 7.2 Non-image areas of prepared screen are blocked out with filler suitable for ink type and according to job specifications 7.3 Pinholes are spotted out with suitable filler and faulty or damaged images are retouched and are taped according to ink type and job specifications |
8 Store screen | 8.1 Prepared screen is labelled according to enterprise procedures 8.2 Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications |
Evidence of the ability to:
correctly prepare TWO different indirect screens and TWO photographic indirect stencils using manual or mechanical techniques according to manufacturer and job specifications, enterprise procedures and work health and safety (WHS) requirements.
Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.
To complete the unit requirements safely and effectively, the individual must:
explain the significance of mesh count
explain why the screen must be tensioned correctly
identify the chemicals that are used for pre-treating and degreasing
describe the method of preparing the activator according to WHS standards
explain the importance of a dust-free work area when working with indirect stencils
outline the inspection process of equipment to ensure good function
list the characteristics of indirect stencils relative to ink type, print resolution and substrate
explain the selection of indirect stencil material
identify the common faults associated with indirect film
explain the importance of vacuum pressure prior to exposing the stencil
explain the position of the light source and the calculation of exposure time
list the effects of overexposure and underexposure
describe the methods of activating film
determine the water temperature required for washing indirect stencils
explain how to recognise and rectify flaws
describe the main considerations before applying the stencil to the screen
describe the method of positioning and adhering the stencil to the screen
explain the process of drying the stencil and removing the backing sheet
describe the method of rectifying flaws and scum in the stencil
explain what determines the type of filler used for blocking out
explain why pinholes are spotted and the screen taped
explain by what means this screen is able to be identified at a later date
identify required manuals, safety and other documentation and briefly outline the relevant information in each source.