Standard Test Methods for Relative Tinting Strength of Paste-Type Printing Ink Dispersions

SIGNIFICANCE AND USE
Tinting strength is an essential property of printing ink dispersions. Although test results on wet drawdowns and tints do not guarantee equivalency of dry printed ink films, they provide useful parameters for quality assurance of established formulations, gaging relative degree of dispersion, and estimating the color value of colorants from different batches, sources, or grades.
SCOPE
1.1 These test methods cover procedures for determining the relative tinting strength of paste-type printing ink dispersions by visual or instrumental evaluation of tints prepared by manual or automated mixing.
1.2 These test methods are applicable to paste-type printing inks, flushed pigments, and other pigment dispersions that are essentially nonvolatile under ordinary room conditions and for which there is a wet reference standard of the same pigmentation and consistency. With proper choice of tinting base, they are applicable to dispersions of any color, including black and white. Note 1 - The instrumental procedures for tinting strength are similar in principle to those described in Test Methods D 387, D 2745, D 4838, and D 6531.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Publication Date
30-Jun-2007
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ASTM D2066-07 - Standard Test Methods for Relative Tinting Strength of Paste-Type Printing Ink Dispersions
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D2066 − 07
StandardTest Methods for
Relative Tinting Strength of Paste-Type Printing Ink
1
Dispersions
This standard is issued under the fixed designation D2066; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* Color Differences from Instrumentally Measured Color
Coordinates
1.1 These test methods cover procedures for determining
D2745Test Method for Relative Tinting Strength of White
the relative tinting strength of paste-type printing ink disper-
Pigments by Reflectance Measurements
sions by visual or instrumental evaluation of tints prepared by
D4838Test Method for Determining the Relative Tinting
manual or automated mixing.
Strength of Chromatic Paints
1.2 These test methods are applicable to paste-type printing
D6531Test Method for Relative Tinting Strength of Aque-
inks, flushed pigments, and other pigment dispersions that are
ous Ink Systems by Instrumental Measurement
essentially nonvolatile under ordinary room conditions and for
E284Terminology of Appearance
which there is a wet reference standard of the same pigmen-
E691Practice for Conducting an Interlaboratory Study to
tationandconsistency.Withproperchoiceoftintingbase,they
Determine the Precision of a Test Method
are applicable to dispersions of any color, including black and
E1331Test Method for Reflectance Factor and Color by
white.
Spectrophotometry Using Hemispherical Geometry
E1347Test Method for Color and Color-Difference Mea-
NOTE1—Theinstrumentalproceduresfortintingstrengtharesimilarin
principle to those described in Test Methods D387, D2745, D4838, and
surement by Tristimulus Colorimetry
D6531.
E1349Test Method for Reflectance Factor and Color by
1.3 The values stated in SI units are to be regarded as the Spectrophotometry Using Bidirectional (45°:0° or 0°:45°)
Geometry
standard. The values given in parentheses are for information
3
only.
2.2 ANSI Standards:
PH 2.17Geometric Conditions for Reflection Density
1.4 This standard does not purport to address all of the
PH2.18SpectralConditionsfortheMeasurementofOptical
safety concerns, if any, associated with its use. It is the
Density
responsibility of the user of this standard to establish appro-
PH 2.30 Viewing Conditions for Graphic Arts and
priate safety and health practices and determine the applica-
Photography—ColorPrints,TransparenciesandPhotome-
bility of regulatory limitations prior to use.
chanical Reproductions
2. Referenced Documents
3. Terminology
2
2.1 ASTM Standards:
3.1 Definitions relating to color attributes and color differ-
D16TerminologyforPaint,RelatedCoatings,Materials,and
ences are covered in Terminology D16 and E284.
Applications
D387Test Method for Color and Strength of Chromatic
3.2 Definitions of Terms Specific to This Standard:
Pigments with a Mechanical Muller
3.2.1 masstone (or masscolor), n—the color of a material
D2244Practice for Calculation of Color Tolerances and
that is thick enough to mask any background.
3.2.2 tinting strength, n—the ability of a material to impart
its color to a standard base; the reciprocal of the relative
1
These test methods are under the jurisdiction of ASTM Committee D01 on
concentration required to match the reference material in a
Paint and Related Coatings, Materials, and Applications and are the direct
standard base.
responsibility of Subcommittee D01.56 on Printing Inks.
Current edition approved July 1, 2007. Published August 2007. Originally
3.2.3 undertone (or undercolor), n—the color of a thin film
approved in 1991. Last previous edition approved in 2006 as D2066–06. DOI:
of a material.
10.1520/D2066-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2066 − 07
4. Summary of Test Methods 6.5 Putty Knife, with an 80 to 120 mm wide blade having a
smooth straight edge (for use as a drawdown blade).
4.1 Thin and thick films of the standard and unknown
dispersions are drawn down in juxtaposition on bond and on 6.6 Standard Daylight, preferably a D50 light source con-
coated paper. Visual evaluation of the relative undertone and forming to ANSI Sta
...

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