Pigment Red 81

Brand	Fineland Chem
Color Index	Pigment Red 81
Color Index No	45160
CAS No	12224-98-5
EC No	235-424-7
Chemical Group	Xanthene
Chemical Formula	C₁₁₂H₁₂₆MoN₈O₂₃PW

Pigment Red 81 Characteristic

Introduction

A pure clean bluish red that matches the magenta hue used in four-color overprint printing inks, with high tint color strength. It is mainly used for printing inks and coloring of cultural and educational supplies, but it has low solvent resistance to polar solvents, such as alcohols, ketones and esters or their mixtures, but is relatively stable to aromatic hydrocarbons and paraffins. We have tone and lake two grades for your choice.

Best Selling

Pigment Red 81 DuraPrint® 6581 ⬇️TDS
A brilliant bluish-red pigment for water-based inks, offering high color strength, excellent flow, and vibrant print results with good gloss.

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.55-1.85
Specific Surface Area(m2/g)	25-60
Oil Absorption(g/100g)	40-50
PH Value	6-9
Bulk Density (lb/gal)	10.4-12.5
Total impurities(ppm)	≤600

Fastness Properties (5=excellent, 1=poor) | Light Fastness (8=excellent, 1=poor)

Heat Resistance (℃)	160	Alkali Resistance (1-5)	4
Light Resistance (Full Shade, 1-8)	5-6	Migration Resistance(1-5)	3-4
Light (Reduced tinting, 1-8)	5	Ethyl Acetate (1-5)	3
Weather Resistance (1-5)	3	Ethanol (1-5)	3
Acid Resistance (1-5)	4	MEK (1-5)	3

Pigment Red 81 Application

Pigment red 81 application:
Recommended for water based printing ink,like water flexo printing ink, corrugated paper printing ink,carton printing ink,food and beverage printing ink etc.

Application

Printing Ink: Discover high-performance ink pigments for various printing technologies including water-based, solvent-based, offset, inkjet, UV curing, and decorative applications. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Applications: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Package and Delivery

● 25KG Kraft bag, 400KG Carton Box.

● Lead Time: Normally around 15 days after signed contract.

Pigment Red 81 Advantages

How do you ensure the quality of your pigment red 81 products
FineLand Chem adopts a strict quality management system, and strictly controls and inspects every link from the selection of raw materials for pigment red 81 to the production process. Each batch of products is tested in multiple processes to ensure stable product quality.

How are your pigment red 81 production facilities and technical capabilities?
FineLand Chem has advanced production facilities and technical teams that can meet large-scale production and customization needs. We continuously invest in technological improvements and equipment updates to ensure the excellent performance and stable supply of pigment red 81.

Does your pigment red 81 comply with international standards and regulatory requirements?
Yes, pigment red 81 complies with international and regional environmental protection, safety and quality standards, such as REACH, RoHS, etc. FineLand Chem is committed to providing products that meet regulatory requirements to ensure customer safety and compliance.

Synonyms

Basic Red 1:1 lake
Toner Red 5B
C.I. Pigment Red 81
PR81
Laked Rhodamine B
[9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium chloride, aluminum lake
Rhodamine B lake (aluminum salt)