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Elements and Performance Criteria

1. Determine job requirements
   • Follow standard operating procedures (SOPs)
   • Comply with work health and safety (WHS) requirements at all times
   • Use appropriate personal protective equipment (PPE) in accordance with SOPs
   • Identify job requirements from specifications, drawings, job sheets or work instructions
2. Prepare for dye preparation
   • Confirm specifications and/or sample of textile material or product with originator or client
   • Clarify end use and performance standards expected of finished product with appropriate personnel
   • Analyse sample to determine type and composition using appropriate techniques, as required
3. Perform preliminary selection and evaluation of dyes
   • Select potential dyes, chemicals and auxiliaries according to specifications and/or previous product dyeing references
   • Identify expected textile production or reproduction processes based on preliminary dye selection, and advise appropriate personnel
   • Determine preliminary dye selection for the sample of textile
   • Trial dye selections and specification or recipe using laboratory-based production facilities, and evaluate results against requirements of originator or client
   • Review dye selection or recipe for colour matching and re-test, as required
   • Seek approval of preliminary dye specification by originator or client before implementing limited production run
4. Test dyes and finalise specification or recipe
   • Select appropriate sampling and testing techniques to evaluate product during limited production run
   • Implement tests according to quality standards and workplace procedures
   • Analyse results and review and retest preliminary dye selection/recipe, as required, to ensure colour matching and specifications are achieved
   • Check dye selection against original client specifications and requirements and workplace production requirements
   • Seek approval of colour specification by originator or client before implementing bulk production run and record process
   • Apply environmental requirements and procedures concerned with waste, pollution, storage and recycling of materials at all stages of the process

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
Textile materials or products include one or more of the following:	fibres, including polyester, cotton, wool, viscose and rayon yarns, including ring spun, open-ended spun, air jet spun and friction spun fabrics finished products, including socks, sweaters, towels, sheets, blankets, carpets, rope and twine, mops and industrial textiles
Tests include one or more of the following:	those associated with product or process development colour fastness shrinkage

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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

developing and planning tests and ensuring tests and sampling techniques are conducted against quality standards

collating, analysing and interpreting tests to ensure colour matching and specifications are achieved

applying dye formulas and specifications to ensure colour matching and specifications are achieved on at least two (2) occasions

checking dye selection against original client specifications and requirements and workplace production requirements

seeking approval of colour specification by originator or client before implementing bulk production run and recording process

applying environmental requirements and procedures concerned with waste, pollution, storage and recycling of materials at all stages of the process.

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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

dyestuffs and classes

chemistry of dyes and relationship with processing and fastness properties

dye specification or recipe:

application properties

fastness properties

reproducibility

suitability for production

application methods

environmental and safety factors

dyeing processes and dyeing machinery

relation between dyeing machinery and selection of dyestuffs/classes

sampling and testing techniques:

use of laboratory equipment, pad mangles, rota dryers, mini-jets and pilot production plants

tests applicable to the dyeing of textiles

relevant Australian and international testing Standards

application of dyes in laboratory and production process

quality standards and practices

workplace procedures

recording and reporting practices.

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