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Solvent Red 179

Yellowish Transparent Red — Solvent Red 179 is a high-strength solvent dye widely used for transparent coloration of plastics, engineering polymers and synthetic fibers (including PET and PA spinning). It offers strong tinting, good heat and light resistance and excellent solubility in common organic solvents.

TRADE NAME:

Transparent Red E2G,Amaplast Red RP,Kayaset Red A-2G,Wenawax Red X2GP,Macrolex Red E2G,Oplas Red 338,Permalex Red Mauve,Sandoplast Red 2G,Sumiplast Red H4GR

Key features

  • Yellowish transparent red shade with bright clarity and high tinting strength
  • Good thermal stability suitable for many plastic processing conditions
  • Moderate to good lightfastness depending on binder/matrix
  • Wide compatibility with engineering plastics and polyester/nylon fiber spinning
  • Low migration and reliable batch-to-batch consistency

Advantages

  • Low dosage required because of high tinctorial strength → cost efficient
  • Consistent color across extrusion, injection molding and solvent formulations
  • Suitable for fiber dyeing (pre-spinning) and masterbatch production
  • Good solubility in hydrocarbon/ester/ketone systems — easy formulation into inks & coatings

Typical uses

  • Coloring engineering plastics (ABS, PS, PC, PBT, PMMA)
  • Color masterbatches and direct coloring in extrusion/injection molding
  • Fiber dyeing / PET and PA6 spinning
  • Solvent-based inks, lacquers and specialty coatings
  • Waxes, candles and non-food industrial oils (where allowed)

Usage & handling notes

Due to high tinctorial strength, typical loading is low and application-specific — perform lab trials to determine optimal dosage. Consult supplier TDS and SDS for recommended solvents, dispersion methods, maximum processing temperatures and safety handling. Not for food or medical use unless explicitly certified.

Technical Specifications

  • CAS NO: 89106-95-5
  • CI.NO: 564150
  • ‍Chemical Family: ketoamine series
  • Molecular Formula: C22H12N2O
  • Molecular Weight: 320.34
  • Shade: Yellowish transparent red powder‍

Density(g/cm3)

1.27

Melting Point(°C)

251

Light Fastness

8

Heat resistance

300

Acetone

1.6

Butyl Acetate

1.6

Methylbenzene

4.0

Dichloromethane

8

Ethylalcohol

0.6

Package

20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye.

What is Solvent Red 179 used for?

Solvent Red 179 is used for transparent yellowish-red coloration of plastics, engineering polymers, PET/PA fiber spinning, solvent inks and coatings.

Is Solvent Red 179 suitable for PET fiber spinning?

Yes — Solvent Red 179 is commonly used for PET and PA6 fiber coloration (pre-spinning or solution dyeing) where compatible with process conditions.

What about heat and light resistance of Solvent Red 179?

Solvent Red 179 typically shows good heat resistance and moderate-to-good lightfastness; exact performance depends on substrate and additives — check supplier TDS for specifics.

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