FULL SHADEP.Y.191
TINT
Digital color reference · physical approval required
HIGH-PERFORMANCE PIGMENTS
Pigment Yellow 191
Pigment Yellow 191 is a monoazo calcium-lake yellow used in plastic coloration. Grades range from mid-shade to reddish yellow and include polyolefin and PVC applications; the supplied grade should be evaluated for dispersion, migration and the actual processing window.
- Color Index / grade
- P.Y.191
- CAS
- 129423-54-7
- Chemical family
- Monoazo calcium-lake pigment
- Published heat resistance
- 300 °C
Typical application scopePlastics & masterbatch
PRODUCT PROFILE
P.Y.191Pigment Yellow 191 — grade profile
Pigment Yellow 191 (P.Y.191) is a monoazo calcium-lake pigment for Plastics & masterbatch where processing stability and durability are defined selection criteria. Evaluate the grade in the intended resin or binder at the target loading and process conditions; every value below retains its published source and application context.
Published screening data includes published heat reference 300 °C. Application-specific heat and fastness entries in the technical table take precedence.
Primary listed fits include PVC, Polyolefins (PO), Polystyrene (PS) and ABS.
Selection focus
At equal loading and dispersion, compare full shade, tint, transparency or opacity, heat stability, migration and the intended exposure conditions.
REFERENCE SHADE
Full shade and tint
Red-shade to mid-shade yellow, depending on grade
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 Unpublished values are omitted.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 Yellow 191
Color Index / product gradeP.Y.191
Colorant categoryHigh-performance pigments
CAS number129423-54-7
EC number403-530-4
C.I. constitution number18795
Chemical familyMonoazo calcium-lake pigment
Physical appearanceColored powder
Heat resistance · catalogue reference300 °C
Heat resistance · plastics300 °C
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
Plastics & masterbatch
PVCPolyolefins (PO)Polystyrene (PS)ABS
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Application listings support initial selection and still require validation in the customer's resin, binder, process and end-use conditions.