ASTM D6487-01

Standard Practice for Preparing Prints of Paste Printing Inks With an Offset Color Proofing Press

SCOPE
1.1 This practice covers the procedure for preparing laboratory prints of paste inks utilizing an offset color Proofing Press. The initial method was developed by the National Printing Ink Research Institute.
1.2 This practice is applicable to the preparation of single-color solid-area prints by the dry offset process on a flat substrate such as paper or metal. It can readily be adapted to print by direct letterpress.
1.3 This practice is applicable primarily to lithographic and letterpress inks that dry by oxidation or penetration. With the addition of appropriate drying or curing equipment, it is also applicable to other systems such as heat-set or energy-curable.
1.4 The instructions in this practice are intended to minimize the within-print and among-operator variability inherent in hand operations.
1.5 This practice does not measure the actual film thickness on the print, but evaluates film thickness equivalence by visual or instrumental comparisons of optical density.
1.6 Values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the users of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Section 7.

General Information

• Status: Historical
• Publication Date: 09-Dec-2001
• ICS: 87.080 - Inks. Printing inks
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.56 - Printing Inks

Relations

• Replaces: ASTM D6487-99e1 - Standard Practice for Preparing Prints of Paste Printing Inks With an Offset Color Proofing Press
• Effective Date: 10-Dec-2001
• Replaced By: ASTM D6487-04 - Standard Practice for Preparing Prints of Paste Printing Inks by Rollouts on a Laboratory Flat-Bed Press
• Effective Date: 01-Jun-2004
• Referred By: ASTM D6846-02(2020) - Standard Practice for Preparing Prints of Paste Printing Inks with a Printing Gage
• Effective Date: 10-Dec-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 6487 – 01
Standard Practice for
Preparing Prints of Paste Printing Inks With an Offset Color
1
Proofing Press
This standard is issued under the fixed designation D 6487; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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1. Scope the Sinvatrol Tester
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2.2 ANSI Standards :
1.1 This practice covers the procedure for preparing labo-
PH 2.17 Geometric Conditions for Reflection Density
ratory prints of paste inks utilizing an offset color Proofing
PH 2.18 Spectral Conditions for the Measurement of Opti-
Press. The initial method was developed by the National
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cal Density
Printing Ink Research Institute .
PH 2.30 Viewing Conditions for Graphic Arts and
1.2 This practice is applicable to the preparation of single-
Photography—Color Prints, Transparencies and Photome-
color solid-area prints by the dry offset process on a flat
chanical Reproductions
substrate such as paper or metal. It can readily be adapted to
CGATS.4 Graphic Technology–Graphic Arts Reflection
print by direct letterpress.
Densitometry Measurements—Terms, Equations, Image
1.3 This practice is applicable primarily to lithographic and
Elements and Procedures
letterpress inks that dry by oxidation or penetration. With the
CGATS.5 Graphic Technology–Spectral Measurements and
addition of appropriate drying or curing equipment, it is also
Colormetric Computation for Graphics Arts Images
applicable to other systems such as heat-set or energy-curable.
1.4 The instructions in this practice are intended to mini-
3. Summary of Practice
mize the within-print and among-operator variability inherent
3.1 The equipment is set up as described in Annex A1. In
in hand operations.
order to make a print, the test ink is metered onto a brayer,
1.5 This practice does not measure the actual film thickness
rolled out evenly on the distribution plate according to a
on the print, but evaluates film thickness equivalence by visual
specified pattern, and then transferred to the printing plate. The
or instrumental comparisons of optical density.
appropriate stock is clipped onto the impression plate, and the
1.6 Values stated in SI units are to be regarded as the
blanket cylinder is rolled over the inked plate six times
standard. The values given in parentheses are for information
followed by once over the stock.
only.
3.2 After the print is set, it is checked against the target
1.7 This standard does not purport to address all of the
optical density instrumentally or by visual comparison with a
safety concerns, if any, associated with its use. It is the
standard print. Subsequent prints are made until the target
responsibility of the users of this standard to establish appro-
optical density has been achieved.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Specific precau-
4. Significance and Use
tions are given in Section 7.
4.1 Laboratory proofing of ink is necessary to establish a
2. Referenced Documents reproducible prediction of print appearance and performance
properties, most of which are highly sensitive to ink film
2.1 ASTM Standards:
thickness. The apparatus described in this practice has found
D 6073 Test Method for Relative Setting of Headset Inks by
wide use for routine control proofing because it provides an
economical method for producing reasonably large prints at
film thicknesses comparable to those obtained on production
presses.
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This practice is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.56 on Printing Inks.
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Current edition approved Dec. 10, 2001. Published February 2002. Originally Annual Book of ASTM Standards, Vol 06.02.
{1 4 th nd
published as D 6487 - 99. Last previous edition D 6487 - 99 . Available from American National Standards Institute, 13 Floor, 11 W. 42
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“The NPIRI Standard Procedure for Preparing Little Joe Prints,” American Ink Street, New York, NY 10036 or Committee on Graphic Arts Technical Standards,
Maker, March 1994, pp. 42-50. 1899 Preston White Drive, Reston, VA 20191-4367.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 6487
4.2 This practice does not duplicate the dynamics of a high 6.3 Printing Substrate such as paper or paperboard cut to
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speed press, nevertheless, it is useful for quality control and for approximately 140 by 210 mm (5 ⁄2 by 8 ⁄2 in.).
specification acceptance between the producer and the user.
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