SIST ISO 2834-3:2010

Graphic technology - Laboratory preparation of test prints - Part 3: Screen printing inks

This part of ISO 2834 specifies a test method for preparation of test prints produced with screen printing inks. These test prints are intended primarily for optical tests, such as colorimetry, transparency and reflection density as described in ISO 2846-4. They can also be used for testing gloss, light fastness and the chemical, physical and mechanical resistance to mechanical and chemical attack regarding either printing ink or substrate, or both.

Technologie graphique - Préparation en laboratoire des impressions d'essai - Partie 3: Encres de sérigraphie

Grafična tehnologija - Laboratorijska izdelava preskusnih odtisov - 3. del: Tiskarske barve za sitotisk

Ta del ISO 2834 določa preskusno metodo za pripravo preskusnih odtisov, natisnjenih s tiskarskimi barvami za sitotisk. Ti preskusni odtisi so namenjeni predvsem optičnim preskusom, kot so kolorimetrija, transparentnost in gostota refleksije, kot opisuje ISO 2846-4. Lahko se uporabljajo tudi za preskušanje leska, svetlobne obstojnosti in kemične, fizikalne in mehanske odpornosti proti mehanskim in kemičnim učinkom v zvezi z barvami za tiskanje ali substratom ali obojim.

General Information

• Status: Published
• Publication Date: 08-Apr-2010
• ICS: 87.080 - Inks. Printing inks
• Technical Committee: GRT - Graphical technology
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-Mar-2010
• Due Date: 17-May-2010
• Completion Date: 09-Apr-2010
• Ref Project: ISO 2834-3:2008 - Graphic technology — Laboratory preparation of test prints — Part 3: Screen printing inks

Relations

• Replaces: SIST ISO 2834:2002 - Graphic technology -- Test print preparation for offset and letterpress inks
• Effective Date: 01-May-2010

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 2834-3
First edition
2008-12-15

Graphic technology — Laboratory
preparation of test prints —
Part 3:
Screen printing inks
Technologie graphique — Préparation en laboratoire des impressions
d'essai —
Partie 3: Encres de sérigraphie




Reference number
ISO 2834-3:2008(E)
©
ISO 2008

---------------------- Page: 1 ----------------------
ISO 2834-3:2008(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


COPYRIGHT PROTECTED DOCUMENT


©  ISO 2008
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2008 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 2834-3:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 2834-3 was prepared by Technical Committee ISO/TC 130, Graphic technology.
ISO 2834 consists of the following parts, under the general title Graphic technology — Laboratory preparation
of test prints:
⎯ Part 1: Paste inks
⎯ Part 2: Liquid printing inks
⎯ Part 3: Screen printing inks

© ISO 2008 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 2834-3:2008(E)
Introduction
This part of ISO 2834 describes the procedure for the preparation of test prints using screen inks. Test prints
need to have a uniform distribution of ink on the substrate to be used for testing. Where such test prints are to
be used for optical tests, the level of ink coverage needs to be controlled and reproducible to allow the
relationship between reflectance data and ink coverage to be determined. If test prints are intended to only be
used for evaluation of mechanical and/or chemical resistance, less accurate preparation methods can be used.
Test prints, as well as production prints, can have an ink film thicknesses that range between 10 µm and more
than 100 µm. The viscosity range is from about 300 Pa⋅s to 2 000 Pa⋅s. The inks’ varnish systems used can
be oil-based, solvent-based, water-based, plastisol or energy curing. Print substrates include paper, board,
glass, textiles, plastics and metals.
The test print preparation methods described in this document support, and are referenced by, ISO 2846-4
and ISO 2836. The preparation of test prints using paste inks (lithography) is defined in ISO 2834-1 and the
preparation of test prints using liquid inks is defined in ISO 2834-2.

iv © ISO 2008 – All rights reserved

---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 2834-3:2008(E)

Graphic technology — Laboratory preparation of test prints —
Part 3:
Screen printing inks
1 Scope
This part of ISO 2834 specifies a test method for preparation of test prints produced with screen printing inks.
These test prints are intended primarily for optical tests, such as colorimetry, transparency and reflection
density as described in ISO 2846-4. They can also be used for testing gloss, light fastness and the chemical,
physical and mechanical resistance to mechanical and chemical attack regarding either printing ink or
substrate, or both.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 187, Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for
monitoring the atmosphere and conditioning of samples
ISO 2846-4, Graphic technology — Colour and transparency of printing ink sets for four-colour-printing —
Part 4: Screen printing
ISO 14981, Graphic technology — Process control — Optical, geometrical and metrological requirements for
reflection densitometers for graphic arts use
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
extender
transparent material (varnish or polymer solution) to reduce the colorant concentration and to adapt ink
concentration to print substrates
3.2
flooding
procedure of filling the openings of the screen printing forme with printing ink before the printing process
3.3
flooding device
device not in contact with the mesh used to fill the openings of the screen printing forme with printing ink
before the printing process
© ISO 2008 – All rights reserved 1

---------------------- Page: 5 ----------------------
ISO 2834-3:2008(E)
3.4
ink rest
area on the surface of the screen-printing forme outside the ink trail
3.5
mesh
uniformly spaced arrangement of interlaced or interlocked stands of thread; screen material
3.6
mesh count
number of threads per unit length in a screen mesh
3.7
mesh volume
open space between the threads of a woven screen printing fabric or effective openings of otherwise
manufactured screen
3.8
off contact distance
adjustable distance between printing forme and substrate
3.9
printing forme
device consisting of a frame, a mesh and a stencil carrying the image to print
3.10
printability tester
device for uniformly inking a printing forme and transferring a reproducible amount of ink onto a substrate
under specified conditions
3.11
retarder
additive to reduce the evaporation speed of the solvent in an ink to prevent drying during the application of ink
to the substrate
3.12
squeegee
device for simultaneously pressing the mesh against the substrate, forcing the printing ink through the
openings of the forme on the substrate, and scraping the excess ink from the forme, consisting, for example of
a holder and a blade or a roll coater (revolving squeegee)
3.13
squeegee angle
angle between the blade and the forme before pressure has been applied
3.14
stencil
blocking layer on or in the mesh, making the mesh impermeable to printing ink at the places which are not to
print
3.15
test-ready ink
printing ink of the appropriate composition and viscosity for the purpose of the test
2 © ISO 2008 – All rights reserved

---------------------- Page: 6 ----------------------
ISO 2834-3:2008(E)
4 Test method
4.1 Principle
Using a printability tester, an amount of screen printing ink is applied uniformly on the chosen substrate. The
procedures described in this part of ISO 2834 are used to prepare test prints for optical tests and can be used
to prepare test prints for any other testing of printed ink.
4.2 Apparatus
Any printability tester, printing ink, substrate and drying apparatus may be used as long as the requirements of
4.2.1 to 4.2.4, 4.3 and 4.4 are met. Test conditions and variables associated with such equipment and
materials shall be agreed upon between parties since variations have a strong influence on the results and
comparability of the properties of the test
...

SLOVENSKI STANDARD
SIST ISO 2834-3:2010
01-maj-2010
1DGRPHãþD
SIST ISO 2834:2002
*UDILþQDWHKQRORJLMD/DERUDWRULMVNDL]GHODYDSUHVNXVQLKRGWLVRYGHO
7LVNDUVNHEDUYH]DVLWRWLVN
Graphic technology - Laboratory preparation of test prints - Part 3: Screen printing inks
Technologie graphique - Préparation en laboratoire des impressions d'essai - Partie 3:
Encres de sérigraphie
Ta slovenski standard je istoveten z: ISO 2834-3:2008
ICS:
87.080 Barvila. Tiskarske barve Inks. Printing inks
SIST ISO 2834-3:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST ISO 2834-3:2010

---------------------- Page: 2 ----------------------

SIST ISO 2834-3:2010

INTERNATIONAL ISO
STANDARD 2834-3
First edition
2008-12-15

Graphic technology — Laboratory
preparation of test prints —
Part 3:
Screen printing inks
Technologie graphique — Préparation en laboratoire des impressions
d'essai —
Partie 3: Encres de sérigraphie




Reference number
ISO 2834-3:2008(E)
©
ISO 2008

---------------------- Page: 3 ----------------------

SIST ISO 2834-3:2010
ISO 2834-3:2008(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


COPYRIGHT PROTECTED DOCUMENT


©  ISO 2008
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2008 – All rights reserved

---------------------- Page: 4 ----------------------

SIST ISO 2834-3:2010
ISO 2834-3:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 2834-3 was prepared by Technical Committee ISO/TC 130, Graphic technology.
ISO 2834 consists of the following parts, under the general title Graphic technology — Laboratory preparation
of test prints:
⎯ Part 1: Paste inks
⎯ Part 2: Liquid printing inks
⎯ Part 3: Screen printing inks

© ISO 2008 – All rights reserved iii

---------------------- Page: 5 ----------------------

SIST ISO 2834-3:2010
ISO 2834-3:2008(E)
Introduction
This part of ISO 2834 describes the procedure for the preparation of test prints using screen inks. Test prints
need to have a uniform distribution of ink on the substrate to be used for testing. Where such test prints are to
be used for optical tests, the level of ink coverage needs to be controlled and reproducible to allow the
relationship between reflectance data and ink coverage to be determined. If test prints are intended to only be
used for evaluation of mechanical and/or chemical resistance, less accurate preparation methods can be used.
Test prints, as well as production prints, can have an ink film thicknesses that range between 10 µm and more
than 100 µm. The viscosity range is from about 300 Pa⋅s to 2 000 Pa⋅s. The inks’ varnish systems used can
be oil-based, solvent-based, water-based, plastisol or energy curing. Print substrates include paper, board,
glass, textiles, plastics and metals.
The test print preparation methods described in this document support, and are referenced by, ISO 2846-4
and ISO 2836. The preparation of test prints using paste inks (lithography) is defined in ISO 2834-1 and the
preparation of test prints using liquid inks is defined in ISO 2834-2.

iv © ISO 2008 – All rights reserved

---------------------- Page: 6 ----------------------

SIST ISO 2834-3:2010
INTERNATIONAL STANDARD ISO 2834-3:2008(E)

Graphic technology — Laboratory preparation of test prints —
Part 3:
Screen printing inks
1 Scope
This part of ISO 2834 specifies a test method for preparation of test prints produced with screen printing inks.
These test prints are intended primarily for optical tests, such as colorimetry, transparency and reflection
density as described in ISO 2846-4. They can also be used for testing gloss, light fastness and the chemical,
physical and mechanical resistance to mechanical and chemical attack regarding either printing ink or
substrate, or both.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 187, Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for
monitoring the atmosphere and conditioning of samples
ISO 2846-4, Graphic technology — Colour and transparency of printing ink sets for four-colour-printing —
Part 4: Screen printing
ISO 14981, Graphic technology — Process control — Optical, geometrical and metrological requirements for
reflection densitometers for graphic arts use
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
extender
transparent material (varnish or polymer solution) to reduce the colorant concentration and to adapt ink
concentration to print substrates
3.2
flooding
procedure of filling the openings of the screen printing forme with printing ink before the printing process
3.3
flooding device
device not in contact with the mesh used to fill the openings of the screen printing forme with printing ink
before the printing process
© ISO 2008 – All rights reserved 1

---------------------- Page: 7 ----------------------

SIST ISO 2834-3:2010
ISO 2834-3:2008(E)
3.4
ink rest
area on the surface of the screen-printing forme outside the ink trail
3.5
mesh
uniformly spaced arrangement of interlaced or interlocked stands of thread; screen material
3.6
mesh count
number of threads per unit length in a screen mesh
3.7
mesh volume
open space between the threads of a woven screen printing fabric or effective openings of otherwise
manufactured screen
3.8
off contact distance
adjustable distance between printing forme and substrate
3.9
printing forme
device consisting of a frame, a mesh and a stencil carrying the image to print
3.10
printability tester
device for uniformly inking a printing forme and transferring a reproducible amount of ink onto a substrate
under specified conditions
3.11
retarder
additive to reduce the evaporation speed of the solvent in an ink to prevent drying during the application of ink
to the substrate
3.12
squeegee
device for simultaneously pressing the mesh against the substrate, forcing the printing ink through the
openings of the forme on the substrate, and scraping the excess ink from the forme, consisting, for example of
a holder and a blade or a roll coater (revolving squeegee)
3.13
squeegee angle
angle between the blade and the forme before pressure has been applied
3.14
stencil
blocking layer on or in the mesh, making the mesh impermeable to printing ink at the places which are not to
print
3.15
test-ready ink
printing ink of the appropriate composition and viscosity for the purpose of the test
2 © ISO 2008 – All rights reserved

---------------------- Page: 8 ----------------------

SIST ISO 2834-3:2010
ISO 2834-3:2008(E)
4 Test method
4.1 Principle
Using a printability tester, an amount of screen printing ink is applied uniformly on the chosen substrate. The
procedures described in this part of ISO 2834 are used to prepare
...