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Elements and Performance Criteria

  1. Determine job requirements
  2. Prepare to develop dye specification and recipe
  3. Perform preliminary and final tests of dyes
  4. Confirm final dye specification and recipe

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Workplace procedures include one or more of the following:

requirements prescribed by legislation, awards, agreements and conditions of employment

SOPs

work instructions

PPE

oral, written and visual communication

quality practices, including responsibility for maintenance of own work quality and contribution to quality improvement of team or section output

housekeeping

tasks related to environmental protection, waste disposal, pollution control and recycling

WHS practices

Australian Standards include:

the relevant industry or Australian Standards that are current at the time this unit is being undertaken

Yarns include one or more of the following:

spun

open-ended spun

air jet spun

friction spun

Fibres include one or more of the following:

polyester

cotton

wool

viscose rayon

Finished products include one or more of the following:

socks

sweaters

towels

sheets

blankets

carpets

rope and twine

mops and industrial textiles

Tests include one or more of the following:

colour fastness testing

shrinkage testing

Test equipment includes one or more of the following:

laboratory equipment

pad mangles

rota dryers

mini jets

pilot production plants

Dye specification and recipe include the following:

dye formulas

application properties

fastness properties and reproducibility

suitability for production and application methods

environmental and safety factors


Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria, and include:

reading and following work instructions, standard operating procedures (SOPs), safe work practices

applying relevant standards

identifying textile characteristics

establishing and confirming criteria for tests

setting up and calibrating test equipment

developing, planning and conducting preliminary trial testing

conducting tests in limited production run against specified quality standards

collating, analysing and interpreting tests

developing and confirming final dye formula and specifications on at least two (2) occasions

testing samples from bulk production run using appropriate techniques

analysing results and reviewing, modifying and re-testing dye, as required

developing, checking and filing dye specification and recipe in accordance with workplace procedures and industry and quality standards

preparing reports and documentation

monitoring dye specification and recipe to ensure continuity and repeatability of colour and test results

complying with environmental requirements and workplace procedures at all stages of the process.


Knowledge Evidence

Evidence must be provided that demonstrates knowledge of:

safe work practices and procedures and use of personal protective equipment (PPE)

relevant Australian Standards

fibres, yarns and end products and their properties

dye stuffs and classes

chemistry of dyes and relevance to processing and fastness properties

dyeing processes and dyeing machinery

relation between dye machinery and selection of dye stuffs and classes

tests applicable to the dyeing of textiles

international testing standards

application of dyes in laboratory and production process

work health and safety (WHS) and environmental aspects of relevant workplace activities, including handling of chemicals and dangerous substances

quality criteria

quality practices

workplace procedures

recording and reporting practices.