Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

ICPSCP233 Mapping and Delivery Guide
Manually prepare direct emulsion stencil

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency ICPSCP233 - Manually prepare direct emulsion stencil
Description
Employability Skills
Learning Outcomes and Application This unit describes the skills and knowledge required to safely select, prepare and store direct emulsion stencils using manual techniques.It applies to individuals working under direct supervision and performing mainly routine tasks such as monitoring equipment and ensuring set processes are followed.No licensing, legislative or certification requirements apply to this unit at the time of publication.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Gather evidence to demonstrate consistent performance in conditions that are safe and replicate the workplace. Noise levels, production flow, interruptions and time variances must be typical of those experienced in the screen printing field of work and include access to chemicals and relevant equipment.

Assessors must satisfy NVR/AQTF assessor requirements.
Prerequisites/co-requisites
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Prepare work area and equipment
  • Work area is made clean and functional prior to commencement of work
  • All equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work
  • Appropriate coating trough is selected, ensuring it is free of nicks and burrs
       
Element: Prepare screen
  • Screen is selected according to job specifications
  • Chemicals are applied and removed according to work health and safety (WHS) requirements and manufacturer or supplier specifications
  • Tension of screen mesh is checked for suitability according to job specifications
       
Element: Select emulsion
  • Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type
  • Emulsion is checked for expiry date and appropriate action taken
  • Emulsion is prepared according to WHS requirements and manufacturer or supplier specifications
  • Emulsion is applied and dried according to manufacturer or supplier specifications
       
Element: Process coated screen
  • Image films are appropriately positioned onto prepared screen and positioned in cleaned, prepared and appropriate exposure device
  • Light source is positioned according to manufacturer or supplier specifications
  • Exposure is calculated and stencil exposed according to manufacturer or supplier specifications
  • Exposed screen is removed from vacuum frame exposure device
  • Exposed screen is washed out after positive removal according to WHS requirements and manufacturer or supplier specifications
  • Processed stencil or screen is inspected for flaws and scum
       
Element: Dry stencil
  • Processed stencil is dried according to manufacturer or supplier specifications
  • Backing sheet is carefully removed and stencil checked for full adhesion
       
Element: Block out screen
  • Backing sheet is carefully removed and stencil checked for full adhesion
  • Stencil is inspected for flaws, scum and orientation
  • Pinholes are spotted out with suitable filler and taped according to ink type and job specifications
       
Element: Store screen
  • Prepared screen is labelled according to enterprise procedures
  • Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications
       


Evidence Required

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 and equipment

1.1 Work area is made clean and functional prior to commencement of work

1.2 All equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work

1.3 Appropriate coating trough is selected, ensuring it is free of nicks and burrs

2 Prepare screen

2.1 Screen is selected according to job specifications

2.2 Chemicals are applied and removed according to work health and safety (WHS) requirements and manufacturer or supplier specifications

2.3 Tension of screen mesh is checked for suitability according to job specifications

3 Select emulsion

3.1 Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type

3.2 Emulsion is checked for expiry date and appropriate action taken

3.3 Emulsion is prepared according to WHS requirements and manufacturer or supplier specifications

3.4 Emulsion is applied and dried according to manufacturer or supplier specifications

4 Process coated screen

4.1 Image films are appropriately positioned onto prepared screen and positioned in cleaned, prepared and appropriate exposure device

4.2 Light source is positioned according to manufacturer or supplier specifications

4.3 Exposure is calculated and stencil exposed according to manufacturer or supplier specifications

4.4 Exposed screen is removed from vacuum frame exposure device

4.5 Exposed screen is washed out after positive removal according to WHS requirements and manufacturer or supplier specifications

4.6 Processed stencil or screen is inspected for flaws and scum

5 Dry stencil

5.1 Processed stencil is dried according to manufacturer or supplier specifications

5.2 Backing sheet is carefully removed and stencil checked for full adhesion

6 Block out screen

6.1 Backing sheet is carefully removed and stencil checked for full adhesion

6.2 Stencil is inspected for flaws, scum and orientation

6.3 Pinholes are spotted out with suitable filler and taped according to ink type and job specifications

7 Store screen

7.1 Prepared screen is labelled according to enterprise procedures

7.2 Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications

Evidence of the ability to:

prepare TWO different direct screens and TWO direct emulsion stencils using manual coating and exposure 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 the mesh count

explain the effect that screen tension has on emulsion coating

explain how to determine the emulsion suitable for the job

explain the significance of good housekeeping in the preparation of the work area and equipment

describe the effect that the coating trough edge has on emulsion coating

explain the requirements for choosing emulsion for a particular job

explain the reasons for checking the expiry date of emulsions

determine the maximum temperature at which the emulsion can be dried

explain the need to have good vacuum pressure in the vacuum frame

outline the process for selecting the light source position

explain the formula used to calculate exposure time

explain the effects of overexposure and underexposure

explain how the optimum exposure time is determined

describe the effect on exposure that a white or coloured mesh has

determine how the screen is washed out properly

identify the characteristics that determine a good and bad stencil

explain why the screen is dried before blocking out

explain what determines the type of filler used for blocking out

explain the reasons for spotting pinholes and taping the screen

determine the WHS requirements for UV exposure light

explain the means by which stored screens are able to be identified at a later date

identify required manuals, safety and other documentation and briefly outline the relevant information in each source.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

ELEMENT

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1 Prepare work area and equipment

1.1 Work area is made clean and functional prior to commencement of work

1.2 All equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work

1.3 Appropriate coating trough is selected, ensuring it is free of nicks and burrs

2 Prepare screen

2.1 Screen is selected according to job specifications

2.2 Chemicals are applied and removed according to work health and safety (WHS) requirements and manufacturer or supplier specifications

2.3 Tension of screen mesh is checked for suitability according to job specifications

3 Select emulsion

3.1 Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type

3.2 Emulsion is checked for expiry date and appropriate action taken

3.3 Emulsion is prepared according to WHS requirements and manufacturer or supplier specifications

3.4 Emulsion is applied and dried according to manufacturer or supplier specifications

4 Process coated screen

4.1 Image films are appropriately positioned onto prepared screen and positioned in cleaned, prepared and appropriate exposure device

4.2 Light source is positioned according to manufacturer or supplier specifications

4.3 Exposure is calculated and stencil exposed according to manufacturer or supplier specifications

4.4 Exposed screen is removed from vacuum frame exposure device

4.5 Exposed screen is washed out after positive removal according to WHS requirements and manufacturer or supplier specifications

4.6 Processed stencil or screen is inspected for flaws and scum

5 Dry stencil

5.1 Processed stencil is dried according to manufacturer or supplier specifications

5.2 Backing sheet is carefully removed and stencil checked for full adhesion

6 Block out screen

6.1 Backing sheet is carefully removed and stencil checked for full adhesion

6.2 Stencil is inspected for flaws, scum and orientation

6.3 Pinholes are spotted out with suitable filler and taped according to ink type and job specifications

7 Store screen

7.1 Prepared screen is labelled according to enterprise procedures

7.2 Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Work area is made clean and functional prior to commencement of work 
All equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work 
Appropriate coating trough is selected, ensuring it is free of nicks and burrs 
Screen is selected according to job specifications 
Chemicals are applied and removed according to work health and safety (WHS) requirements and manufacturer or supplier specifications 
Tension of screen mesh is checked for suitability according to job specifications 
Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type 
Emulsion is checked for expiry date and appropriate action taken 
Emulsion is prepared according to WHS requirements and manufacturer or supplier specifications 
Emulsion is applied and dried according to manufacturer or supplier specifications 
Image films are appropriately positioned onto prepared screen and positioned in cleaned, prepared and appropriate exposure device 
Light source is positioned according to manufacturer or supplier specifications 
Exposure is calculated and stencil exposed according to manufacturer or supplier specifications 
Exposed screen is removed from vacuum frame exposure device 
Exposed screen is washed out after positive removal according to WHS requirements and manufacturer or supplier specifications 
Processed stencil or screen is inspected for flaws and scum 
Processed stencil is dried according to manufacturer or supplier specifications 
Backing sheet is carefully removed and stencil checked for full adhesion 
Backing sheet is carefully removed and stencil checked for full adhesion 
Stencil is inspected for flaws, scum and orientation 
Pinholes are spotted out with suitable filler and taped according to ink type and job specifications 
Prepared screen is labelled according to enterprise procedures 
Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications 

Forms

Assessment Cover Sheet

ICPSCP233 - Manually prepare direct emulsion stencil
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

ICPSCP233 - Manually prepare direct emulsion stencil

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: