Solvent Violet 13 / Solvent Dyes
for industrial components exposed to cleaning agen
Technical Information
CAS No.: 81-48-1
Molecular formula: C21H15NO3
Feature: Good fastness, good heat resistance and migration resistance with bright color.
Application: Used for PET, PC, ABS, plastics (polyolefin, polyester, polycarbonate). Also can be used in polyester fiber (PET fibber).
Identification Information:
Color Index: Solvent Violet 13
Molecular formula: C21H15NO3
CAS No.: 81-48-1
Product Overview
Solvent Violet 13 is a bluish violet oil-soluble dye characterized by its brilliant hue and robust all-around performance across multiple polymer systems. With a molecular structure based on C₂₁H₁₅NO₃, SV13 delivers superior light fastness ratings—achieving level 8 in both PC and PET substrates, making it the top-performing violet solvent dye in the Honor portfolio for applications demanding maximum photostability. Unlike its reddish-violet counterpart SV31, SV13’s bluish undertone provides a cooler, more contemporary aesthetic preferred in premium consumer electronics housings and high-end cosmetic packaging. Its exceptional acid and alkali resistance (rating 5 across all tested substrates) ensures color integrity even in chemically aggressive environments, an advantage for industrial components exposed to cleaning agents or harsh processing conditions. The dye’s lower melting point of 189°C enables energy-efficient processing while maintaining heat resistance up to 310°C in PC transparent applications. With solubility of 35 g/L in dichloromethane and 7 g/L in methylbenzene, SV13 is an excellent choice for solvent-based ink systems and masterbatch production. Formulators select SV13 when they need brilliant bluish violet color with uncompromising fastness properties in PET fiber spinning, ABS injection molding, and polycarbonate sheet extrusion.
Product specification
Appearance: Violet powder — Fine powder morphology promotes rapid dissolution in solvent-based systems and uniform polymer dispersion.
Tinting Strength: 100±3% — Precision-controlled color strength enables reliable formulation scaling from lab to production batches.
Shade Color: Similar to the standard — Spectrophotometrically verified bluish violet shade against certified reference standards.
Ash: ≤ 1.0% — Minimal inorganic residue supports clean processing in fiber spinning and thin-film extrusion applications.
Moisture: ≤ 1.0% — Low moisture specification prevents processing defects such as splay and silver streaking in injection molding.
Color Differential Value ΔE: ≤ 0.8 — CIELAB ΔE ≤ 0.8 represents tight color control; values below 1.0 are visually indistinguishable to most observers.
Density: 1.35 g/cm³ — Slightly higher density than SV31 (1.30 g/cm³) due to different molecular structure; consider when calculating volumetric dosing.
Melting Point: 189°C — Lower melting point compared to anthraquinone dyes allows energy-efficient compounding while still exceeding most olefin processing temperatures.
Technical Data
| Test Items | PS | ABS | SAN | PMMA | PC | R-PVC | PA6 | PET |
| Heat resistance temperature, °C (0.05% dyes, transparent) | 300 | 290 | 300 | 300 | 310 | – | – | 290 |
| Heat resistance temperature, °C (0.05% dyes + 1.0% Titanium dioxide) | 280 | 270 | 280 | 280 | 290 | – | – | 270 |
| Migration resistance | 5 | 5 | 5 | 5 | – | – | – | – |
| Light fastness (0.05% dyes, transparent) | 7-8 | 6 | – | – | 8 | – | 8 | |
| Weather resistance | – | – | – | – | – | – | – | – |
| Acid resistance (in 5% hydrochloric acid solution) | 5 | 5 | 5 | 5 | 5 | 5 | – | – |
| Alkali resistance (in 5% caustic soda solution) | 5 | 5 | 5 | 5 | 5 | 5 | – | – |
Solvent Violet 13 solubility in organic solvent at 20°C (g/l)
| Acetone | Butyl Acetate | Methylbenzene | Dichloromethane | Ethylalcohol |
| 1.30 | 3.00 | 7.00 | 35.00 | 0.20 |
Application
| PS | ● | PET | ○ | PC | ● |
| AS | ● | PVC-R | ● | SAN | ● |
| ABS | ● | PVC-U | ● | HIPS | ● |
| PMMA | ● | PA6 | – |
Note: ● = recommended ○ = potential use – = not recommended
Recommended Dosage
Transparent: 0.02
Non-transparent: 0.05
Packaging:
Regular Packaging is in 25kgs paper drum, 450kgs/Pallet.
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📩 Need more details?
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Frequently Asked Questions — Solvent Violet 13
What is the difference between Solvent Violet 13 and Solvent Violet 31?
SV13 (C₂₁H₁₅NO₃) produces a bluish violet shade with a melting point of 189°C, while SV31 (C₁₄H₈Cl₂N₂O₂, anthraquinone) yields a reddish violet with a melting point of 282°C. Key performance differences: SV13 achieves light fastness rating 8 in PC and PET versus SV31’s 7-8; SV13 has superior acid and alkali resistance (rating 5 vs 4 across all substrates); SV31 offers higher dichloromethane solubility (40 vs 35 g/L). Select SV13 when maximum photostability and chemical resistance are priorities; choose SV31 for higher-temperature processing and inkjet ink applications requiring superior solubility.
Can Solvent Violet 13 be used in polyester (PET) fiber spinning?
Yes, SV13 is designated for PET fiber applications with a “potential use” rating. Recommended approach: masterbatch method at 0.02-0.05% dosage; thorough drying at 140°C for 6 hours before spinning to prevent hydrolytic degradation; spin pack filtration at 20-40 μm mesh. SV13 achieves a light fastness rating of 8 in PET, making it suitable for automotive interior textiles and outdoor performance fabrics. Pre-spinning compatibility testing at your target denier and draw ratio is strongly recommended to validate processing parameters.
What is the migration behavior of Solvent Violet 13 in multi-material applications?
SV13 achieves a migration resistance rating of 5 (highest on the standard scale) in PS, ABS, SAN, and PMMA substrates, indicating no visible color transfer to adjacent materials under standard ISO 18314 testing conditions. In multi-component moldings—such as two-shot ABS/PMMA automotive interior trim—SV13 maintains sharp color boundaries without bleeding or blooming. For PET coextrusion or overmolding scenarios, migration resistance is application-dependent; consult Honor Pigments technical datasheets for substrate-specific migration data.
How does the solubility profile of Solvent Violet 13 affect ink formulation choices?
SV13 demonstrates selective solubility: 35 g/L in dichloromethane (highest), 7 g/L in toluene, 3 g/L in butyl acetate, 1.3 g/L in acetone, and only 0.2 g/L in ethanol. This profile makes SV13 ideal for solvent-based gravure and flexographic printing inks using ketone or aromatic solvent systems. The low ethanol solubility (0.2 g/L) means SV13 is unsuitable for alcohol-based flexo ink formulations. For water-based ink systems, SV13 requires pre-dispersion with appropriate surfactants and wetting agents to achieve stable suspension.