FULL SHADEP.R.146
TINT
Digital color reference · physical approval required
ORGANIC PIGMENTS
Pigment Red 146
Pigment Red 146 is a Naphthol red used in water-based inks, coatings and pigment textile printing. It offers a red color position for aqueous formulations where shade, dispersion and vehicle compatibility are central selection criteria. Solvent-ink grades require separate qualification.
- Color Index / grade
- P.R.146
- CAS
- 5280-68-2
- Chemical family
- Naphthol pigment
- Published heat resistance
- 160 °C
- Light fastness
- 6 / 8
Typical application scopePrinting inks · Coatings & paint · Textiles & fibers
PRODUCT PROFILE
P.R.146Pigment Red 146 — grade profile
Pigment Red 146 (P.R.146) is a naphthol pigment for Printing inks, Coatings & paint and Textiles & fibers. Compare shade, tinting strength, dispersion and processing stability in the customer’s actual resin or binder rather than relying on one universal value.
Published screening data includes published heat reference 160 °C, light fastness 6/8 and oil absorption 40–50 ml/100g. Application-specific heat and fastness entries in the technical table take precedence.
Primary listed fits include Water-based inks, NC inks, Industrial coatings, Powder coatings and Pigment textile printing; Offset inks are listed for evaluation.
Selection focus
At equal loading, compare shade, tinting strength, dispersion and resin or binder compatibility, then confirm the required fastness under the final process conditions.
REFERENCE SHADE
Full shade and tint
Red; grade-specific shade
Full shade
Tint / reduction
Manufacturer-published shade descriptions were used to correct the color direction. Screen colors remain visual references, not batch standards; approve a physical drawdown or molded plaque under agreed test conditions.
TECHNICAL DATA
Published specifications
Only identified or numerical fields supported by public registry and product-table data are shown. Unpublished values are omitted.
ParameterPublished value
Product namePigment Red 146
Color Index / product gradeP.R.146
Colorant categoryOrganic pigments
CAS number5280-68-2
C.I. constitution number12485
Molecular formulaC33H27ClN4O6
Chemical familyNaphthol pigment
Physical appearanceColored powder
Heat resistance · coatings160 °C
Heat resistance · printing inks160 °C
Light fastness6 / 8
Acid resistance5 / 5
Alkali resistance5 / 5
Oil absorption40–50 ml/100g
Performance values are catalogue references. The current grade TDS, test conditions and agreed batch COA govern product approval.
APPLICATION CHART
Recommended systems at a glance
Application areaRecommendedEvaluate
Printing inks
Water-based inksNC inks
Offset inks
Coatings & paint
Industrial coatingsPowder coatingsPigment textile printing
—
Textiles & fibers
Pigment textile printing
—
Application listings support initial selection and still require validation in the customer's resin, binder, process and end-use conditions.