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Home / Products / Polyester OBA / Luminophore ERI

Luminophore ERI / ER / RNI

[Product Name]
polyester OBA - Optical Whitening Agent

Luminophore ERI / ER / RNI

High-performance polyester OBA with excellent whiteness and stability for fabric applications.

★★★★★ Trusted by Textile Manufacturers

Suitable For

Polyester Fabric Knitted Polyester / Woven Fabric Polyester Yarn
Request Sample Download TDS
Greenish-Yellow
Yellow dispersion
Non Iconic
Liquid Dispersion
High Temp (130°C)

Product Description

Luminophore ERI / ER / RNI is a premium Polyester Optical Brightening Agent (OBA) developed to deliver exceptional whiteness, brightness, and long-lasting brilliance on Polyester cotton blended fabric. It offers excellent affinity for polyester substrates and ensures uniform whitening with superior build-up during high-temperature dyeing processes.

Designed for modern textile processing, this optical brightener provides outstanding thermal stability, excellent migration properties, and remarkable resistance to yellowing, making it suitable for continuous as well as exhaust dyeing applications.


Its consistent performance, easy dispersibility, and reliable processing characteristics make it the preferred choice for textile mills seeking high-quality white shades with excellent reproducibility.

30+

Years of Excellence

20+

Countries Served

20+

Global Customers
ZDHC

Level 3

Our Most Popular Products Are ZDHC Certified
OEKO TEX

Certified

OEKO-TEX® ECO PASSPORT (Valid to 31/07/2026)
DPMAI

25+

Awards Won
Specifications

Technical Specifications

Yellow Green Powder
Optical Brightening Agent
Yellow dispersion
Liquid Dispersion
Miscible
Polyester Cotton Blends Fabric, Knitted Polyester / Woven Fabric, Polyester Yarn
Exhaust Application, Continuous Process (Pad Thermosoling)
4.5 to 7.5
Store in Cool & Dry Place
1 Year
Non-Ionic
Key Features

Features & Benefits

Superior Whitening
High Thermal Stability
Excellent
Build-Up
Excellent Migration
Low
Yellowing
Excellent Reproducibility
Easy
Dispersion
Cost
Effective
Applications

Applications

[Application One]
Polyester Fabrics
[Application Two]
Knitted Fabrics
[Application Three]
Woven Fabrics
[Application Four]
Continuous Dyeing
[Application Five]
Textile Finishing

Why Choose This Product

Benefits & Advantages

Our Optical Brightening Agent is engineered for superior whitening performance, long-lasting brightness and consistent production quality across industrial applications.

High Whiteness

Produces brilliant whiteness and excellent visual brightness.

Excellent Light Fastness

Maintains brightness even after prolonged UV exposure.

Chemical Stability

Stable in industrial processing and compatible with multiple formulations.

Easy Processing

Delivers consistent performance with simple production integration.

Packaging

  • Custom Industrial Packing Available
  • Moisture-proof sealed packaging
  • Suitable for export shipments
  • Safe storage and transportation

Store in a cool, dry place away from direct sunlight and moisture.

Downloads

Technical Data Sheet (TDS)
Safety Data Sheet (SDS)
Trust & Compliance

Certifications & Accreditations

Our commitment to quality, safety and the environment is a priority

ISO Certified

ZDHC Certified - Our Most Popular Products Are ZDHC Certified

Eco-Tex Passport (Valid up to 31/07/2026)

25+ DPMAI Awards

CHEMEXCIL Registered

Need a Sample or Have a Requirement?

Our technical experts are here to help you.

Frequently Asked Questions

Helpful answers to your questions

Have more questions about our OWA products, certifications or delivery? Our team is happy to help you find the right solution.

Contact Us
What types of OWAs do you manufacture and supply?
We manufacture a comprehensive range of Optical Whitening Agents — including Polyester OBAs (Luminophore ERI, ER, RNI, SFN, SV, ERB, SFB, TC, TCB, EBF, ERN) and Cotton OBAs (BA, BBU, CF, BYB, BAB, BRU, MST, BHT). We also cater to specific requirements for strength, tone and application.
What quality standards do your OBA products follow?
Our products are ZDHC MRSL V3.1 Level 3 certified — the highest certification tier — and ECO TEX Passport certified. Every batch is tested via UV spectrophotometry and Gretag Macbeth colour spectrophotometry before dispatch.
Are your OBA manufacturing processes sustainable?
Yes. United Specialities manufactures eco-friendly OBAs without harmful chemicals. We undergo rigorous EHS audits and hold ZDHC Level 3 and ECO TEX Passport certifications ensuring environmental compliance at every stage.
Do you provide samples before bulk orders?
Absolutely. We provide product samples so you can evaluate performance before committing to bulk orders. Contact our exports team at exports@unitedspecialities.com to request samples.
Which industries do you serve with OWA solutions?
We serve the textile, polyester, detergent, paper & pulp, plastics, and coatings industries. Our OBAs are trusted by customers across India, Europe, the Middle East, Southeast Asia and 50+ countries worldwide.

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Optical Brightening Partner?

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