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

ICPSP233C Mapping and Delivery Guide
Manually prepare direct emulsion stencil

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency ICPSP233C - Manually prepare direct emulsion stencil
Description This unit describes the performance outcomes, skills and knowledge required to prepare direct emulsion stencils using manual techniques.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit requires the individual to prepare direct emulsion stencils using manual techniques.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites
Competency Field Screen Printing
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 the work area and equipment
  • Work area is made clean and functional prior to the commencement of work
  • All equipment is inspected to ensure it is functional and where necessary, appropriate remedial action is taken prior to the commencement of work
  • Appropriate coating trough is selected ensuring it is free of nicks and burrs
       
Element: Prepare the screen
  • Screen is selected according to job specifications
  • Chemicals are applied and removed according to OHS requirements and manufacturer's/supplier's 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 OHS requirements and manufacturer's/supplier's specifications
  • Emulsion is applied and dried according to manufacturer's/supplier's specifications
       
Element: Process coated screen
  • Image films are appropriately positioned onto prepared screen and positioned in cleaned/prepared/ appropriate exposure device
  • Light source is positioned according to manufacturer's/supplier's specifications
  • Exposure is calculated and stencil exposed according to manufacturer's/supplier's specifications
  • Exposed screen is removed from vacuum frame exposure device
  • Exposed screen is washed out after positive removal according to OHS requirements and manufacturer's/ supplier's specifications
  • Processed stencil/screen is inspected for flaws and scum
       
Element: Dry stencil
  • Processed stencil is dried according to manufacturer's/supplier's 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 specifications
  • Prepared screen is stored in a clean, dry environment according to manufacturer's/supplier's 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.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the following is essential:

correctly prepare direct emulsion stencils using manual techniques according to job specifications

demonstrate an ability to find and use information relevant to the task from a variety of information sources

prepare TWO different direct screens using manual coating and exposure techniques according to manufacturer's and job specifications, enterprise procedures and the listed Performance Criteria.

Context of and specific resources for assessment

Assessment must ensure:

assessment may take place on the job, off the job or a combination of these. Off the job assessment must be undertaken in a closely simulated workplace environment.

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:

direct questioning combined with review of portfolios of evidence and third party workplace reports of on-the-job performance by the candidate.

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended.

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.

Required skills

OHS in relation to operating machinery such as safely switching off machinery before cleaning is started

communication of ideas and information by labelling the completed screens

collecting, analysing and organising information by selecting correct emulsion according to job specifications

planning and organising activities by preparing the work area and equipment prior to coating the screens

teamwork when maintaining the production process in association with others

mathematical ideas and techniques by calculating required exposure time for the screen

problem-solving skills by inspecting stencil for flaws and spotting out pinholes

use of technology by processing the screen using photographic equipment

Required knowledge

preparation of screen for coating

significance of the mesh count

effect that screen tension has on emulsion coating

emulsion suitable for the job

preparation of work area and equipment

significance of good housekeeping

effect that the coating trough edge have on emulsion coating

selecting the right emulsions for the job

choice of emulsion

reasons for checking the expiry date of emulsions

maximum temperature at which the emulsion can be dried

coating and exposure techniques

need to have good vacuum pressure in the vacuum frame

why have you placed the light source in this position?

formula use to calculate exposure time

effects of overexposure and underexposure

optimum exposure time

effect on exposure that a white or coloured mesh have

how do you determine if the screen is washed out properly?

what characteristics determine a good or bad stencil?

drying screen and blocking out

drying the screen before blocking out

type of filler used for blocking out

reasons for spotting pinholes and taping the screen

storage and OHS

OHS requirements for UV exposure light

means by which this screen is able to be identified at a later date

manuals, safety and other documentation that are relevant to this task and where they are kept and information that is included in these documents

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Coating techniques may include:

manual coating techniques for various emulsions, mesh types and definition requirements.

Type of stencil material may include:

direct stencil materials commonly used relative to each industry sector.

Enterprise procedures may include:

tasks must be performed according to enterprise procedures.

Degree of autonomy may include:

working under supervision to defined procedures to ensure production requirements are met.

Quality standards may include:

should meet client requirements and enterprise and industry standards.

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 the commencement of work 
All equipment is inspected to ensure it is functional and where necessary, appropriate remedial action is taken prior to the 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 OHS requirements and manufacturer's/supplier's 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 OHS requirements and manufacturer's/supplier's specifications 
Emulsion is applied and dried according to manufacturer's/supplier's specifications 
Image films are appropriately positioned onto prepared screen and positioned in cleaned/prepared/ appropriate exposure device 
Light source is positioned according to manufacturer's/supplier's specifications 
Exposure is calculated and stencil exposed according to manufacturer's/supplier's specifications 
Exposed screen is removed from vacuum frame exposure device 
Exposed screen is washed out after positive removal according to OHS requirements and manufacturer's/ supplier's specifications 
Processed stencil/screen is inspected for flaws and scum 
Processed stencil is dried according to manufacturer's/supplier's 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 specifications 
Prepared screen is stored in a clean, dry environment according to manufacturer's/supplier's specifications 

Forms

Assessment Cover Sheet

ICPSP233C - 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

ICPSP233C - 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: