NZQA Expiring unit standard
23447 version 4
Page 1 of 4
Title
Demonstrate knowledge of glues and gluing systems for carton
converting
Level
3
Credits
10
Purpose
People credited with this unit standard are able to: follow safety
requirements for the equipment being used; demonstrate
knowledge of the properties of hot melt glues used in the
workplace; demonstrate knowledge of the properties of cold
glues used in the workplace; use glues to meet the
requirements of the job; and identify gluing faults, and describe
their causes and remedies.
Classification
Fibreboard Packaging > Carton Converting
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 340, Demonstrate knowledge of safe working practices in
the printing and graphic pre-press industries, or demonstrate
equivalent knowledge and skills.
Explanatory notes
1
All workplace practices must meet any applicable and recognised codes of practice,
and documented workplace health, safety, and environmental procedures for
personal, product, workplace health, safety and environmental matters, and the
obligations required under current law including the Health and Safety in Employment
Act 1992, Resource Management Act 1991, and their subsequent amendments.
2
Workplace practices refer to the documented procedures for the machine and/or
workplace.
Outcomes and evidence requirements
Outcome 1
Follow safety requirements for the equipment being used.
Range
machine operating manual, workplace practices.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
23447 version 4
Page 2 of 4
Evidence requirements
1.1
Machine start up, shut down, and emergency procedures in the workplace are
explained.
1.2
Risk awareness and hazard control measures, as circulated by the company,
are described.
1.3
Hazards and potential hazards in the workplace are identified and reported in
accordance with workplace practices.
Outcome 2
Demonstrate knowledge of the properties of hot melt glues used in the workplace.
Evidence requirements
2.1
Hot melt glue formulations used in the workplace are listed, and the
characteristics of at least one formulation is described in terms of
manufacturers’ recommended open time and operating temperature range.
2.2
Faults arising from glue operating temperatures outside the manufacturers’
recommended ranges are described.
Range
2.3
too high a temperature produces – glue charring, glue scorch,
reduced adhesion, increased fluidity, excessive application;
too low a temperature produces – reduced penetration of
substrates, poor bonding, decreased fluidity, inadequate
application, poor cut off.
The advantages and disadvantages of hot melt glue formulations are described
in terms of workplace practices for job and machine requirements.
Outcome 3
Demonstrate knowledge of the properties of cold glues used in the workplace.
Evidence requirements
3.1
The cold glue formulations in use in the workplace are listed, and the open time
for at least one is described in terms of the manufacturer’s specification.
3.2
The advantages and disadvantages of cold glue formulations are described in
terms of workplace practices for job and machine requirements.
3.3
The meanings of the acronyms PVA and EVA are listed.
3.4
The advantages and disadvantages of EVA formulations against PVA
formulations are described in terms of job requirements.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
23447 version 4
Page 3 of 4
Outcome 4
Use glues to meet the requirements of the job.
Evidence requirements
4.1
Factors to be considered when using glues to meet the job requirements and
the process being undertaken are described.
Range
4.2
factors include – substrate, flexibility, temperature, working time,
life, humidity, economy, viscosity, machine or hand application,
strength, acidity, previous printing processes, speed of drying,
compatibility to substrate and production process.
Glues are used that meet both the substrate and job requirements.
Outcome 5
Identify gluing faults, and describe their causes and remedies.
Evidence requirements
5.1
Gluing faults are identified from photographs or diagrams or physical samples.
Range
5.2
A minimum of two causes are described for each fault identified at evidence
requirement 5.1.
Range
5.3
no glue or intermittent glue, excessive glue, incorrectly timed glue,
incorrect lateral position, no bond or inadequate bond.
the causes provided are those most often experienced in the
workplace.
For each cause provided at evidence requirement 5.2, a minimum of one
corrective action is described.
Range
the corrective actions described are those most often undertaken
in the workplace.
Replacement information
This unit standard has been replaced by unit standard
27796.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
23447 version 4
Page 4 of 4
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
18 December 2006
31 December 2015
Revision
2
12 December 2008
31 December 2015
Review
3
20 September 2012
31 December 2019
Rollover
4
10 December 2015
31 December 2019
Consent and Moderation Requirements (CMR) reference
0005
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.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016