5395 Hank Dye Yarn
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Title / Hank dye yarn
Level / 3 / Credits / 12
Purpose / This unit standard is for people working in the dyeing and finishing industry.
People credited with this unit standard are able to: demonstrate knowledge of hank dyeing; prepare hanks for hank dyeing; prepare and operate a hank dyeing machine; and carry out batch end procedures.
Classification / Textiles Manufacture > Textile Dyeing and Finishing
Available grade / Achieved
Entry information
Critical health and safety prerequisites / Recommended for entry: Unit 5392, Demonstrate knowledge of textile dyeing and finishing safety, or demonstrate equivalent knowledge or skills.
Explanatory notes
1 Dyeing is considered to include all pre-treatments, dyeings, and post-treatments carried out in the dyeing machine.
2 Performance of the elements must comply with the Health and Safety in Employment Act 1992.
3 The disposal or discharge of dyestuffs, chemicals, wastes, and packaging materials must be carried out according to the requirements of the Resource Management Act 1991.
4 Definitions
Workplace procedures refer to the verbal or documented procedures for performing activities including health and safety, operational, environmental and quality management requirements. They refer to manuals, manufacturer's specification, codes of practice, or policy statements.
Product specifications refer to the document which accompanies each manufacturing order. This specifies all of the parameters for production of the yarn batch. This may include the fibre specification, the shade, dye bath parameters, machinery to be used and finishing procedures.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of hank dyeing.
Evidence requirements
1.1 Hank dyeing is described in terms of the process steps.
Range load preparation, pre-dyeing treatments, dyeing cycle, post-dyeing treatments, rinsing, unloading, liquor discharge and disposal.
1.2 Dyes and chemicals used in the workplace for hank dyeing are described in terms of their nature, function, and safe handling requirements.
Range dyestuffs, dyeing assistants, auxiliary chemicals.
1.3 Hank dye vessel and related equipment are described in terms of their function and operation.
Range dye vessel, hank sticks and carrier, circulation system, addition tanks, dye vessel controls and interlocks, pressurising system when fitted.
Outcome 2
Prepare hanks for hank dyeing.
Evidence requirements
2.1 Hanks are identified in accordance with workplace procedures.
2.2 Hanks are loaded in carrier.
Range calculate number of hanks per stick, calculated number of hanks loaded on stick, spacing on stick, hanks hang evenly, sticks locked in carrier.
Outcome 3
Prepare and operate a hank dyeing machine.
Evidence requirements
3.1 Machine is emptied and cleaned to prevent contamination from the previous dyeing.
3.2 Machine is prepared and operated in accordance with workplace procedures.
3.3 Machine is prepared according to product specifications and workplace procedures.
Range vessel filled, dye vessel controls set, chemicals added in specified sequence and circulated, dyestuff added in specified sequence and circulated, hanks loaded.
3.4 Vessel is operated according to workplace procedures.
3.5 Process conditions are maintained according to product specifications.
3.6 Samples taken are representative of the batch.
3.7 Dye and chemical additions are carried out according to product specifications.
3.8 Records are maintained according to workplace procedures.
Outcome 4
Carry out batch end procedures.
Evidence requirements
4.1 Hanks are removed from machine and handled according to workplace procedures.
4.2 Liquor is discharged from machine according to workplace procedures.
4.3 Machine and work area are cleaned to prevent contamination.
4.4 Any machine faults are reported according to workplace procedures.
Range faults may include but are not limited to – leaks from pumps, leaks at drains, control malfunctions, lid mechanisms.
This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for Assessment /Registration / 1 / 25 October 1995 / 31 December 2019
Revision / 2 / 8 August 1997 / 31 December 2019
Revision / 3 / 18 July 2000 / 31 December 2019
Revision / 4 / 10 October 2001 / 31 December 2019
Revision / 5 / 15 January 2004 / 31 December 2019
Rollover / 6 / 25 July 2007 / 31 December 2019
Review / 7 / 17 April 2009 / 31 December 2019
Review / 8 / 19 May 2016 / 31 December 2019
Consent and Moderation Requirements (CMR) reference / 0030
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
CompetenzSSB Code 101571 / Ó New Zealand Qualifications Authority 2017 / / New Zealand Qualifications Aut