Pigment Violet 23: A Buyer's Guide to Carbazole Violet Selection and RFQ
Pigment Violet 23 buyers usually face the same problem: violet is a small-volume color with outsized performance demands, and the gap between a datasheet claim and what actually survives your process is where projects fail. Carbazole violet (also written pigment PV23, Violet 23, or CI Pigment Violet 23) is the workhorse of the violet space for exactly this reason — it delivers very high tinting strength and strong fastness, but only if you match the grade and shade direction to your application. This guide covers what PV23 is, how to choose between reddish and bluish variants, where it performs, and what to put in your RFQ.
What Pigment Violet 23 Is and Why It Dominates the Violet Space
Pigment Violet 23 is a carbazole dioxazine organic pigment, a synthetic violet known for exceptional color strength and clean, intense masstone. In the broader family of organic pigments, it sits among the highest-performing violet chemistries, which is why it appears in demanding applications rather than only in low-cost tinting.
Its core commercial advantages:
- Very high tinting strength — small addition levels deliver deep violet, which matters when color cost is calculated per unit of tint.
- Clean, saturated shade — unlike many violets, PV23 holds chroma without turning muddy on letdown.
- Good light and weather fastness for the violet class — typically among the better violet options for outdoor and long-life goods. Treat this as typical class behavior and confirm the specific grade datasheet before specifying.
- Broad compatibility — usable in plastics, printing inks, and industrial coatings when the grade is matched to the system.
Because it is a high-strength pigment, the main practical risk is over-dosing. Most color-matching problems with PV23 come from adding too much pigment, not too little.
Shade Direction: Reddish Violet vs Bluish Violet
PV23 is not one color. Suppliers offer shade-adjusted grades spanning reddish violet to bluish violet, and the choice affects the entire formulation, not just the final hue.
| Shade direction | Character | Typical fit | Formulation note |
|---|---|---|---|
| Reddish violet | Warmer, closer to magenta-violet | Textile printing, some inks, decorative coatings | Easier to blend toward red or magenta targets |
| Bluish violet | Cooler, closer to blue-violet | Plastics, industrial coatings, automotive | Often paired with phthalocyanine blue for blue-violet and deep blue shades |
| Mid / neutral | Balanced violet | General purpose | Good starting point when end use is not yet fixed |
The practical rule: order a shade card and test the exact grade rather than assuming "PV23" means one hue. Two suppliers' standard grades can sit noticeably apart.
Performance Profile: What to Expect and What to Verify
The table below reflects general, typical behavior for carbazole violet grades. It is a starting point for evaluation — not a guarantee. Always request the grade datasheet and run your own application test.
| Property | Typical PV23 class behavior | Action for buyers |
|---|---|---|
| Tinting strength | Very high | Test at low loadings; verify strength vs. your reference |
| Light fastness | Good for the violet space | Confirm grade datasheet; test in your binder system |
| Weather fastness | Good for the violet space | Essential for outdoor/automotive; request outdoor data |
| Heat resistance | Grade-dependent | Confirm for your plastics processing temperature |
| Migration resistance | Grade-dependent | Critical for PVC and food-contact-adjacent use |
| Alkali/acid resistance | Generally good | Verify for coatings and construction systems |
For context on how PV23 compares with adjacent high-performance pigments, it is often blended with phthalocyanine grades rather than substituted for them. Violet adjusts and deepens blue tones; it rarely replaces the blue itself.
Applications: Plastics, Printing Inks, Industrial and Automotive Coatings
Plastics. PV23 is widely used for violet and blue-violet plastics, including masterbatch. Because strength is high, masterbatch loadings are low, which helps dispersion economics — but dispersion quality must be confirmed, since undispersed violet shows as streaks and specks. Confirm the grade's heat resistance against your actual processing window.
Printing inks. Used in packaging, publication, and specialty inks where clean violet and strength are required. Solvent and binder compatibility should be tested per system; the shade direction (reddish vs bluish) matters more here than in most applications because ink film thickness is thin.
Industrial coatings. Provides saturated violet in decorative and industrial paints. Pair with phthalocyanine blue for deep blue-violet targets, and verify acid/alkali resistance for demanding substrates.
Automotive and other demanding goods. PV23 is considered for automotive interior and exterior uses where light and weather fastness are prioritized. These applications carry strict OEM specifications — always work from the grade datasheet and required test protocols, not from general class claims.
PV23 also appears in stationery, leather finishes, and building materials where its strength and clean shade are valued.
RFQ Checklist for Pigment Violet 23
Send these points to suppliers together. It reduces back-and-forth and lets you compare quotes on equal terms.
- Exact product name and CI reference — "Pigment Violet 23 / CI 51319 / PV23" plus the supplier's grade code.
- Shade direction — reddish, bluish, or neutral; request a physical shade card or sample.
- Tinting strength — against what reference, and measured how.
- Fastness data — light, weather, heat, migration, and alkali/acid, as applicable to your application.
- Recommended loading range — starting point for your system.
- System compatibility — solvent, water-based, plastic carrier, or coating binder.
- Regulatory status — RoHS and other compliance relevant to your market; confirm the specific grade.
- Sample quantity and lead time — pigmented samples typically start from 25 kg; lead times are commonly 2–4 weeks ex-works and should be confirmed per order.
- Packaging and documentation — pack size, SDS, and technical datasheet.
If you are comparing PV23 against other violets, request test results in your own application rather than relying on class-level comparisons. Violet performance is unusually sensitive to grade and system.
Sourcing Note: Manufacturer vs. Trader
For a pigment with this many grade variables, the supplier's technical support matters as much as the price. A manufacturer that runs application testing can tell you which of its PV23 grades fits your system and provide the supporting data. Confirm what you are buying: the grade code, the shade direction, and the documentation that travels with the shipment.
Shanghai Baiyan Industrial Co., Ltd. supplies organic pigments including Pigment Violet 23 (carbazole violet), with ISO9001:2015 quality management, SGS-certified products, and RoHS-compliant grades across most of its range. Samples typically start from 25 kg industry-wide, with typical lead time of 2–4 weeks ex-works — confirm both when you inquire.
Next step
If you have a violet target — a shade card, a competitor sample, or an existing formulation — send it over with your application details (system, processing temperature, fastness requirements). We will help you source a PV23 grade, confirm shade direction and strength, and arrange a sample for your own testing. To request samples or get a shade-matched quote, contact Anne at +86 150 5830 7390 or reach the team through our contact page.