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Ranbar 4B Red Fluorescent Dye – Solvent Red 149

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Ranbar 4B Red Fluorescent Dye is a high-performance pyridine anthrone-type fluorescent dye with a color index of Solvent Red 149.

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Ranbar Fluorescent Red 4B – Fluorescent Dyes for Plastics

 

Ranbar 4B Red Fluorescent Dye is a high-performance pyridine anthrone-type fluorescent dye with a color index of Solvent Red 149. The dye exhibits a vibrant blue-red hue(rose red), high transparency, strong tinting strength, and excellent resistance to light, migration, solvents, and thermal stability. Widely used in coloring applications for various plastic products.

 

  • Name: Fluorescent Red Dye
  • Index No.: Solvent Red 149
  • Model: Fluorescent Red 4B
  • CAS No.: 21295-57-8/71902-18-6
  • EINECS No.: 244-320-0
  • Molecular formula: C23H22N2O2
  • Molecular weight: 358.43
  • Chemical structure: Pyridine anthrone
  • Hue: brilliant blue red (rose red)
  • Appearance and properties: red powder

 

Ranbar 4B Red Fluorescent Dye Powder Photo

 

Performance parameters:

Coloring intensity100±1%
Melting point267°C
Thermal decomposition>300°C
Density1.35g/cm³
Bulk density0.50g/cm³
PH value7.0-8.0
Water content≤0.5%
Lightfastness7-8 grade
Temperature resistance280-300℃

 

Ranbar Solvent Red 149 Color Card Photo

 

Product advantages:

  • Excellent thermal stability.
  • Bright color, high fluorescence.
  • High color intensity, strong tinting power.
  • Good light resistance and weather resistance.
  • Good migration resistance and solvent resistance.
  • Suitable for various rigid plastic products.

 

Product Application:
Ranbar 4B Red Fluorescent Dye showcases a brilliant fluorescent effect in sunlight and is primarily used for coloring various rigid plastics and thermoplastic resins. It meets the coloring needs of engineering plastics and synthetic fibers, and is recommended for use in PA, PS, SAN, rigid PVC, ABS, AS, PMMA, PC, PET, PBT, PA6, PA66, polyester fibers, and more.

 

Ranbar Fluorescent Dye Color Card

 

ModelColor IndexTemperature ResistanceApplication AreaLightfastnessShade
Fluorescent Red 4BS.R.149280-300℃Nylon, Hard Plastic5Blue Red
Fluorescent Red 6B280-300℃Hard Plastic8Yellow Red
Fluorescent Red BKS.R.196300-350℃Hard Plastic5Yellow Red+1
Fluorescent Orange GGS.O.63280-300℃Nylon, Hard Plastic5Red Orange
Fluorescent Orange 3G350℃ PA66 30%GFPA66, ABS, PA6, Spinning7-8Yellow Orange
Fluorescent Yellow 2G350℃ PA66 30%GFPA66, ABS, PA6, Spinning8Red Yellow
Fluorescent Yellow 4G350℃ PA66 30%GFPA66, ABS, PA6, Spinning5Green Yellow
Fluorescent Yellow 6G300℃PET, PC Spinning, etc.8Green Yellow+1
Fluorescent Yellow 8GS.G.5280-300℃Hard Plastic, PVC-R, PS, ABS, PMMA, PC, PET, PBT5Green Yellow+2
Note: Fluorescent dyes for high-performance plastic industry use. Possesses excellent coloring power, high purity, and vibrant colors. Other application areas include polyester spinning and ink printing.

 

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