2899 version 7
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Demonstrate knowledge of woven fabric manufacture
Level
5
Credits
15
Purpose
This unit standard is an advanced unit standard for people in the broadloom
and narrow loom weaving or related industries. People credited with this unit
standard are able to: describe the stages in the manufacture of woven fabric;
the mechanisms used in weaving; the function and operation of machinery
involved in warp preparation and weaving; and the use of CAD/CAM
systems.
Subfield
Textiles Manufacture
Domain
Weaving
Status
Registered
Status date
3 April 1995
Date version published
21 May 2010
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0030
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
CAD/CAM is Computer Aided Design and Computer Aided Manufacturing.
 New Zealand Qualifications Authority 2016
2899 version 7
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Elements and performance criteria
Element 1
Demonstrate knowledge of warping and beaming.
Performance criteria
1.1
Warping and beaming machines are described in terms of their function and
operation.
Range
1.2
Warp and beam variables are described in terms of their effect on fabric
construction and their calculation method.
Range
1.3
warp build and traverse, dents per cm, ends per dent, allowance
for spread, number of sections, warp centering, beam packing
density, warp length.
Factors that influence the quality of a warp are identified and described in terms
of their impact on weaving performance and cloth quality.
Range
1.4
warp creel, warping mill, lease reed, condenser reed.
creel sequence, yarn joins, yarn tension, build-up, warp sequence,
drawing-in sequence, contamination.
Chemicals added to the warp during preparation are identified and their function
described.
Range
size, anti-stats, wax.
Element 2
Demonstrate knowledge of drawing-in and tying-on.
Performance criteria
2.1
Drawing-in and tying-on processes are described and distinguished between.
2.2
Components that make up a drawn-in and/or tied-on warp are identified and
their function described.
Range
headle shaft, headle wires, reed, dropper wires.
 New Zealand Qualifications Authority 2016
2899 version 7
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Element 3
Demonstrate knowledge of loom mechanical motions.
Range
shedding, weft insertion, beat-up, let-off, take-up and cloth control, stop motion.
Performance criteria
3.1
Shedding motions are described and compared in terms of their function and
operation.
Range
3.2
Weft insertion mechanisms are described and compared in terms of their
function and operation.
Range
3.3
ring temple, roller temple, full width temple, negative cloth take-up,
positive cloth take-up, warp let-off, warp tension, weft tension, weft
feed, binder feed.
Protection and stop motions are described and compared in terms of their
function and operation.
Range
3.6
crank driven, cam driven.
Yarn and cloth control mechanisms are described in terms of their function and
operation.
Range
3.5
shuttle, projectile, rapier, air jet, water jet.
Beating-up mechanisms are described and compared in terms of their function
and operation.
Range
3.4
tappet, dobby, jacquard, and/or layer needle.
warp protector, weft stop, warp stop, binder stop.
Selvedge formation methods are described and compared in terms of their
function and operation.
Range
shuttle, catch wire, tuck-in, leno, twisted, stitched, thermoseal.
3.7
Loom timing and the control of loom motions are described in terms of function
and operation.
3.8
Quick Style Change (QSC) mechanism is described in terms of function and
operation.
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Element 4
Demonstrate knowledge of factors that affect quality in weaving.
Performance criteria
4.1
Faults caused during weaving are identified, their cause stated and the
corrective action described.
Range
yarn faults, threads out of pattern sequence, broken and/or
missing picks and ends, yarn tails, temple marks, weft bars, faulty
selvedge, presence of oil and dirt, binder cut.
Element 5
Describe computer aided design and manufacturing (CAD/CAM) in relation to the
manufacture of woven fabrics.
Performance criteria
5.1
Components of CAD/CAM systems are identified and their function described.
Range
5.2
data storage, processor, input devices, display, printer and/or
plotter.
Methods of entering data into CAD/CAM systems are described and compared
in terms of their advantages and disadvantages.
Range
keyboard, mouse, scanner, digitiser.
5.3
CAD/CAM and conventional manufacturing control techniques are described
and compared in terms of their advantages and disadvantages.
5.4
Maintenance and support for CAD/CAM systems is described.
Range
storage and retrieval of information, back-up and security
requirements, methods of access to computerised design libraries.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
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Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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.
Comments on this unit standard
Please contact Competenz info@competenz.org.nz if you wish to suggest changes to the
content of this unit standard.
 New Zealand Qualifications Authority 2016