This unit applies to selecting and testing dyes and developing dye formula and specifications used in the dyeing of textiles. Judgement may be required in planning and selecting appropriate processes or procedures for self and others. Textile material and products for which product specifications are developed in the textile sector include fibres, fabrics, yarns and finished products.

Work may be conducted in small to large scale enterprises and may involve individual and team activities.

The application of this unit is according to OHS practices of the enterprise and workplace practices, which may include:

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

standard operating procedures

work instructions

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

This unit requires the application of skills associated with communication to interpret specifications, perform calculations, apply formulas and complete documentation. Planning and organising and problem solving skills are required to determine and test dye specifications and recipes.

Prerequisites

ELEMENT

PERFORMANCE CRITERIA

1 Identify properties of textile

1.1 Specifications and or sample of textile material product is confirmed with originator and client

1.2 End use and performance standards expected of finished product are clarified and determined with appropriate personnel

1.3 Sample is analysed to determine type and composition using appropriate techniques, if required

2 Perform preliminary selection and evaluation of dyes

2.1 Preliminary selection of dyes and chemicals and auxiliaries is undertaken with reference to specifications and or previous product dyeing references

2.2 Expected textile production and reproduction processes are identified based on preliminary dye selection and appropriate personnel advised

2.3 Preliminary dye selection is determined for the sample of textile

2.4 Dye selections and specification and recipe are trailed using laboratory-based production facilities and results evaluated against requirements of originator and client, as required

2.5 Dye selection and recipe is reviewed, and re-developed and re-tested as required

2.6 Approval of preliminary dye specification by originator and client is sought prior to implementing limited production run

3 Perform final selection and evaluation of dyes and specification and recipe

3.1 Sampling and testing techniques are selected appropriate to evaluation of product during limited production run

3.2 Tests are implemented using established enterprise procedures and quality standards

3.3 Results are analysed and preliminary dye selection and recipe reviewed, modified and re-tested as required

3.4 Dye selection checked against original client specifications and requirements and enterprise production process and requirements

3.5 Approval of colour specification by originator and client is sought prior to implementing bulk production run

3.6 Environmental requirements and procedures concerned with waste, pollution, storage and recycling of materials are correctly applied at all stages of the process

4 Prepare final dye specification and recipe

4.1 Samples from bulk production run are tested using appropriate techniques

4.2 Results are analysed and dye recipe reviewed, modified and re-tested as required

4.3 Dye specification and recipe is developed, checked and filed in accordance with workplace requirements and industry and quality standards

4.4 Reports and documentation are prepared

4.5 Dye specification and recipe is monitored to ensure continuity and repeatability of colour and test results

This describes the essential skills and knowledge and their level, required for this unit.

Demonstrates knowledge of:

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

Australian and international testing standards

application of dyes in laboratory and production process

safety and environmental aspects of relevant workplace activities including handling of chemicals and dangerous substances

OHS practices, including hazard identification and control measures

quality practices

workplace practices

recording and reporting practices

Demonstrates skills to:

effective use of test equipment

analysis and interpretation of results

colour matching

safe handling and disposal of dyes, chemicals and effluent

communicate effectively with individuals, work groups and supervisors

select, interpret and apply procedures or processes

prepare and present reports and information in appropriate formats

read, interpret and follow information on work specifications, , standard operating procedures and work instructions and other reference material

maintain accurate records

communicate within the workplace

sequence operations

meet specifications

clarify and check task-related information

carry out work according to OHS practices

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for the Training Package.

Critical aspects of evidence to be considered

Demonstrates skills and knowledge to:

identify textile characteristics

establish and confirm criteria for tests

set up and calibrate test equipment

develop and plan tests

ensure tests are conducted against specified quality standards

collate, analyse and interpret tests

develop dye formula and specifications

communicate effectively with design team, customers, etc.

maintain accurate records

Consistency in performance

Consistently applies skills and knowledge when:

organising work

completing tasks

identifying improvements

using workplace practices

using OHS practices

recording and reporting accidents and incidents

assessing operational readiness of equipment used and work processes

recognising and adapting to cultural differences in the workplace, including modes of behaviour and interactions

completing work systematically with attention to detail without damage to goods and equipment

Resource implications

Access is required to real or appropriately simulated situations, including work areas, materials and equipment, and to information on workplace practices and OHS practices.

Context for assessment

Assessment may occur on the job or in an appropriately simulated environment.

Interdependent Assessment

This unit may be assessed independently or in combination with other relevant units.

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. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.

Legislative/regulatory requirements

All work must comply with relevant Federal and State or Territory legislative or regulatory requirements.

Yarns may include

spun

open-ended spun

air jet spun

friction spun

Fibres may include

polyester

cotton

wool

viscose rayon

Finished products may include

socks

sweaters

towels

sheets

blankets

carpets

rope and twine

mops and industrial textiles

Tests may include

those associated with product or process development, and may include:

colour fastness testing

shrinkage testing

Test equipment may include

laboratory equipment

pad mangles

rota dryers

mini jets

pilot production plants

Dye specification and recipe may include

dye formulas

application properties

fastness properties, reproducibility

suitability for production and application methods

environmental and safety factors

OHS practices

OHS practices must include hazard identification and control, risk assessment and implementation of risk reduction measures specific to the tasks described by this unit, and may include:

manual handling techniques

standard operating procedures

personal protective equipment

safe materials handling

taking of rest breaks

ergonomic arrangement of workplaces

following marked walkways

safe storage of equipment

housekeeping

reporting accidents and incidents

other OHS practices relevant to the job and enterprise

Sector

Textile Production

This unit contains employability skills.