Significance and Use
5.1 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.
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.
—The instrumental procedures for tinting strength are similar in principle to those described in Test Methods D387, D2745, D4838, and D6531.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D16 Terminology for Paint, Related Coatings, Materials, and Applications
D387 Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D2745 Test Method for Relative Tinting Strength of White Pigments by Reflectance Measurements
D4838 Test Method for Determining the Relative Tinting Strength of Chromatic Paints
D6531 Test Method for Relative Tinting Strength of Aqueous Ink Systems by Instrumental Measurement
E284 Terminology of Appearance
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1331 Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E1349 Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45:0 or 0:45) Geometry
PH2.30 Viewing Conditions for Graphic Arts and Photography--Color Prints, Transparencies and Photomechanical Reproductions
automated mixing; colorimeter; densitometer; FlackTek Speed Mixer; Kubelka-Munk equation; pigment dispersions; pigment flushes; printing inks; relative tinting strength; spectrophotometer;
ICS Number Code 87.080 (Inks. Printing inks)
ASTM International is a member of CrossRef.
Citing ASTM Standards
[Back to Top]