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Optical Brightener CXT
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Optical Brightener OB
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Solvent Black 29
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Solvent Yellow 163
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Pigment yellow 17
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Solvent Yellow 98
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Acid Red 18
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Pigment blue B12
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Pigment red 53-1
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Sodium Alpha-olefin Sulfonate
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Solvent Orange 63
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Fiber Titanium Dioxide Masterbatch
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zeolite 4A
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Optical Brightener OB-1
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Titanium Dioxide Masterbatch
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Ultramarine blue
Solvent blue 104
Product Name: Solvent Blue 104 / C.I. 61568 / Transparent Blue 2B
Chemical Name: 1,4-Bis(2,4,6-trimethylanilino)anthraquinone
/ 1,4-Bis(mesitylamino)anthraquinone
Color Index: C.I. 61568
CAS: 116-75-6
Molecular Formula: C32H30N2O2
Formula Weight: 474.59 g/mol
Synonyms: Transparent Blue 2B; Solvent Blue RBL; Sandoplast Blue 2B; Solvaperm Blue 2B;
1,4-Bis[(2,4,6-trimethylphenyl)amino]anthraquinone; Oracet Blue 690; Keyplast Blue KR;
C.I. 61568; Anthraquinone Blue
Application:
Engineering Plastics (PS, ABS, PC, PET, PMMA, SAN, PVC-R), Polyester Fibers, Nylon Fibers, Paints & Coatings, Printing Inks, Toners, Wood Stains, Foils, Fuels & Oils
Description
marker
1.Product Description
Achieve Brilliant, Heat-Stable Blue Coloration with Solvent Blue 104 –
The Premium Anthraquinone Dye for Engineering Plastics and High-Temperature Applications.
Solvent Blue 104, internationally designated as C.I. 61568 and widely known as Transparent Blue 2B, is a high-performance anthraquinone-based solvent dye renowned for its brilliant reddish-blue hue, exceptional heat resistance, and outstanding lightfastness . This sophisticated dye features a unique 1,4-bis(mesitylamino)anthraquinone molecular structure that delivers superior thermal stability and excellent solubility in organic solvents and polymer matrices .
What distinguishes Solvent Blue 104 from conventional solvent dyes is its exceptional combination of heat resistance, lightfastness, and versatility. With a melting point of 236-240°C and outstanding stability during melt processing, this dye maintains its vibrant color through demanding injection molding, extrusion, and fiber spinning operations . Its lightfastness rating of 7-8 (on an 8-point scale) in most engineering plastics ensures long-lasting color integrity in outdoor and prolonged-use applications .
Key differentiators:
Anthraquinone Chemistry: Provides superior thermal stability and lightfastness compared to azo-based alternatives, with excellent migration resistance .
Exceptional Heat Resistance: Withstands processing temperatures up to 340°C in PC, 320°C in PET, and 300°C in PS/ABS .
Brilliant Reddish-Blue Shade: Delivers a clean, transparent reddish-blue hue with high color strength and excellent clarity .
FDA Compliance: Available in FDA-compliant grades suitable for food contact applications .
Broad Polymer Compatibility: Suitable for PS, ABS, PC, PET, PMMA, SAN, PVC-R, and PA .
2. Product Specifications (Technical Data Sheet)
| Property | Specification | Insight |
| Product Name | Solvent Blue 104 (C.I. 61568) | Premium anthraquinone dye for engineering plastics |
| Appearance | Dark blue to blue-black uniform powder | Free-flowing, fine powder with slight odor |
| CAS No. | 116-75-6 | Verified chemical registry number |
| EINECS/EC No. | 204-155-7 | Listed in European inventory |
| Molecular Formula | C₃₂H₃₀N₂O₂ | Anthraquinone derivative with mesitylamino groups |
| Formula Weight | 474.59 g/mol | Precise molecular mass |
| Solubility | Insoluble in water; soluble in toluene (240 g/L), xylene, chlorobenzene, acetone (3 g/L), butyl acetate (8 g/L) | Excellent organic solubility for polymer applications |
| Solubility in DMSO | Soluble (≥ 10 mg/mL) | Suitable for research applications |
| Style | Solvent Dye / Anthraquinone | Non-ionic, heat-stable colorant |
| Color Shade | Reddish-blue (Hue angle: 258-268°) | Transparent, brilliant blue with red undertone |
| Tinting Strength | High | Strong coloration with minimal dosage |
| Purity | ≥ 98% - 99% (HPLC) | High purity ensures consistent performance |
| Melting Point | 236-240°C | Excellent thermal stability for processing |
| Density | 1.22 - 1.23 g/cm³ | Good handling characteristics |
| Boiling Point | 639.5 ± 55.0 °C | High thermal stability |
| Flash Point | 168.9 °C | Safe processing parameters |
| Lightfastness (PS 1/3) | Grade 6 | Excellent UV resistance |
| Lightfastness (PC 1/3) | Grade 7-8 | Outstanding UV resistance |
| Heat Resistance (PC) | 340°C | Exceptional stability in polycarbonate |
| Heat Resistance (PET) | 320°C | Suitable for polyester applications |
| Heat Resistance (PS/ABS) | 300°C | Excellent for styrenic plastics |
| Acid Resistance | Grade 5 | Excellent chemical stability |
| Alkali Resistance | Grade 5 | Outstanding alkaline stability |
| Log P | 7.25 - 7.9456 | High hydrophobicity |
| Storage Conditions | Store in cool, dry, ventilated warehouse; powder stable 3 years at -20°C, 2 years at 4°C | Shelf life: 3-5 years under proper storage |
| Packing | 25 kg fiber drums / cardboard cartons with PE inner liner; custom sizes available | Secure, moisture-proof packaging |
| Application | PS, ABS, PC, PET, PMMA, SAN, PVC-R, PA, polyester fibers, coatings, inks | Versatile across multiple industries |
3.Product Application
Engineering Plastics & Thermoplastics – Primary Application:
Solvent Blue 104 is the preferred colorant for high-performance engineering plastics, delivering exceptional heat stability and brilliant transparent coloration across a wide range of polymers.
Primarily, Solvent Blue 104 is widely used in coatings, paints, for polyester fiber PET fiber and suitable for engineering plastics. It is widely used in PS, PET, PA, PC, ABS, etc. It is designed for offset ink, ensuring excellent color stability and print quality. However, its unique properties also make it suitable for water-based inks, industrial paints, and printing coatings. Whether you are working on packaging, labels, or other printed materials, Solvent Blue 104 can deliver consistent and vibrant results.
PET Bottle & Fiber Applications:
Solvent Blue 104 is widely used in polyester applications:
PET Bottle Coloring: Provides vibrant blue hues for beverage and personal care bottles; typical usage 0.7 g/kg.
Dope Dyeing: Added during fiber spinning for permanent, wash-fast coloration of polyester and nylon fibers .
Excellent Light fastness: Rated 5-6 for PET, ensuring long-lasting color in textile applications.
Paints, Coatings & Printing Inks:
Solvent Blue 104 is suitable for industrial coating and ink applications :
Industrial Coatings: Provides transparent reddish-blue shades with excellent durability
Printing Inks: Used in solvent-based ink systems for packaging, stationery, and specialty printing
Toners: Essential colorant in toner production for printing applications
Wood Stains & Foils: Provides vibrant coloration for decorative finishes
Oils, Fuels & Specialty Applications:
The dye is used for coloring non-polar substrates :
Fuels & Lubricants: Colors hydrocarbon-based products for brand identification.
Oils & Waxes: Provides vibrant blue coloration for industrial oil formulations.
4.Our advantage:
1) Provide free samples for testing or comparing the effect difference and cost performance.
2) Fast response speed, customers' questions at any time will be responded to in two hours.
3) Fast delivery: the fastest delivery can be made on the same day.
4)Different packaging solutions: provide various packaging options according to customer requirements.
5)Technical guidance: provide improved whitening and coloring formulas and guidance according to customer production materials.
6) Sample retention or sample mailing before bulk delivery.
7) Providing certificationes, such as Reach certification.
8) Different payment methods: TT LC, etc.
9) Providing door-to-door DDP service.
5.Packing information:
Usually is 25Kg/drum or paper box or bag with inner double PE liner Or provide customized packaging according to customer requirements.
Contact Us
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