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 prepared screens

collecting analysing and organising information by drying and using emulsion according to suppliers instructions

planning and organising activities by preparing the emulsion prior to processing the material

teamwork when maintaining the production process in association with others

mathematical ideas and techniques by correctly preparing chemicals

problemsolving skills by blocking out nonimage areas of the screen and spotting out pinholes

use of technology by using various items of equipment to prepare direct projection stencils

Required knowledge

influence that mesh count has on final printed product

need to have a correctly tensioned screen

screen tension that is required on screens of various mesh count or grades

degreasingcleaning techniques that are employed prior to coating the screen

information that is contained in MSDSs for the emulsion

pollution and environmental issues that need to be considered when working with emulsions

maintenance that is required on the direct projection camera

need to work in a safelight area when using the direct projection method

kinds of high sensitivity emulsion that are available and state their characteristics lifespans and areas of use

preparation method for the emulsion you are using

influence that the length of run and ink being used have on the coating technique

number of coats of emulsion and the best method of coating the screen

best position horizontal or vertical for drying the screen

effect of heat on the emulsion during the drying process

OHS concerns that are there when exposing the screen

operating features of the direct projection camera

setting the enlargement factor and take into account registration on the frame for the appropriate printing machine

exposure techniques that are used and how do you calculate exposure time

exposure procedures

effect of temperature pressure and period of washing on the emulsion

determining when washing out is complete

ideal position of the screen for drying to prevent scum and streaking

postcuring effect on the stencil

information that is obtained from the MSDSs for this particular blockout

ink to be used and the type of stencil that have a bearing on the type of blockout

what preventive measures can be taken to minimise pinholes

need to tape the edge of the frame

means by which is this screen 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 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 projection stencils 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 screens using the direct projection method according to manufacturers 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 both of these Off the job assessment must be undertaken in a closely replicated 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 onthejob performance by the candidate

Guidance information for assessment

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

any basic set up units

Coating techniques may include:

Enlargements may include:

Enterprise procedures may include:

Type of stencil materials may include:

Degree of autonomy may include:

Quality standards may include: