Pigment Red 4

Brand	Fineland Chem
Color Index	Pigment Red 4
Color Index No	12085
CAS No	2814-77-9
EC No	220-562-2
Chemical Group	Disazo
Chemical Formula	C₁₆H₁₀ClN₃O₃

Introduction

Pigment Red 4 (C.I. 12085; CAS 2814‑77‑9), also known as Ortho‑chlor Red or Chlorinated Para Red, is a monoazo organic pigment recognized for its vivid bright‑red hue and strong tinting strength. It is widely used in coatings, plastics, inks, and textile applications due to its excellent dispersibility and high color saturation. PR 4 exhibits moderate fastness properties, with lightfastness ratings around 4–5 and heat resistance up to approximately 140 °C. Although its light and weather resistance are comparatively lower, its cost‑effectiveness and vibrant color make it a popular choice for indoor and short‑term uses.

Physical Properties

Test Item	Specification
Colour light	Brilliant yellow light red
Covering power	Translucent
Oil absorption %	34-70
Density	1.45-1.60
Tinting Strength, %	95-105
Ph value	5.5～7.5

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

_{Acid Resistance}	4-5	_{Water Resistance}	5
_{Alkali Resistance}	4-5	_{Oil Resistance}	2-3
_{Alcohol Resistance}	4	Light Fastness (8=excellent)	4-5
_{Heat Resistance(℃)}	140	Light Fastness (8=excellent)	4-5

Application

● Coatings. Pigment Red 4 is widely used in various coatings, including decorative coatings and industrial coatings. Due to its bright red color and good dispersibility, it is often used in interior wall coatings, furniture coatings, etc. In addition, PR4 is also used in coatings for automobiles and metal surfaces to provide a bright red effect.
● Printing inks. PR4 is a commonly used pigment in printing inks, especially in packaging printing and label printing. Its high tinting strength and bright colors make it an ideal choice in various ink formulations and suitable for a variety of printing technologies such as flexographic printing, gravure printing and screen printing.
● Textile dyeing. In the textile industry, Pigment Red 4 is used in dyeing and printing processes. It is able to provide textiles with a bright red color and is widely used in clothing, home textiles and other textiles. Despite its lower lightfastness, PR4 is an affordable option for certain short-term or indoor applications where vibrant colors are needed.

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, 500KG Carton Box.
● Lead Time: Normally around 15 days after signed contract.

Pigment Red 4 Advantages

● Bright Color: Pigment Red 4 is known for its vivid red color, which can provide bright and pure color effects, and is very suitable for applications that require high saturation and brightness.

● Strong tinting strength: The pigment has extremely high tinting strength and can show a strong red color even at low concentrations, which makes it provide excellent coverage in various applications.

● Good dispersibility: Pigment Red 4 can be well dispersed in a variety of substrates and is suitable for various media such as plastics, coatings and inks, ensuring uniform and consistent color.

● High cost-effectiveness: Compared with some more durable pigments, PR4 has relatively low production and use costs, making it an affordable red pigment choice.

Although PR4 is relatively low in light fastness and weather fastness, its bright color, high tinting strength and cost-effectiveness make it very popular in many indoor and short-term applications. In specific usage scenarios, Pigment Red 4 can provide excellent visual effects and application performance.