Optical Brightener ER II is a crucial component in various industries, particularly in textiles and paper manufacturing. This guide delves into its significance in enhancing product appearance and quality. Understanding its properties and applications can help businesses optimize their processes and meet consumer demands for brighter, more vibrant products.

In this comprehensive exploration, readers will discover the chemical composition of Optical Brightener ER II, its mechanisms of action, and its role in different sectors. We will also discuss regulatory considerations and market trends in China, providing valuable insights for manufacturers and suppliers.

By the end of this guide, readers will gain a thorough understanding of Optical Brightener ER II, including best practices for its use and potential challenges. This knowledge will empower stakeholders to make informed decisions and leverage this additive to enhance their product offerings effectively.

Optical Brightener ER-II: A Comprehensive Guide

Optical brighteners, also known as fluorescent whitening agents (FWAs), are chemical compounds that enhance the brightness and whiteness of materials. One such agent is Optical Brightener ER-II, widely used in various industries, including textiles, plastics, and paper. This guide delves into the technical features, types, and applications of Optical Brightener ER-II, providing a thorough understanding of its significance in enhancing product aesthetics.

Technical Features of Optical Brightener ER-II

Optical Brightener ER-II is a stilbene derivative known for its excellent whitening properties. It absorbs ultraviolet light and re-emits it as visible blue light, making materials appear brighter and whiter. Below is a comparison table highlighting its key technical features:

Feature	Description
Chemical Name	4,4’-bis(2,4-cyano-phenylene)-benzene
CAS Number	13001-38-2
Molecular Formula	C24H16N2
Appearance	Light yellow powder
Melting Point	184-190℃
Purity	≥99%
Fluorescence	High fluorescence intensity
Applications	Textiles, plastics, paper, detergents
Fastness	Excellent fastness to washing and sublimation

Types of Optical Brighteners

Optical brighteners can be categorized based on their chemical structure and application. Below is a comparison table of different types of optical brighteners, including Optical Brightener ER-II:

Type	Chemical Structure	Applications	Example Domain
Stilbene Derivatives	Non-ionic	Textiles, plastics	www.cncolorchem.com
Benzoxazole Derivatives	Non-ionic	Paper, detergents	www.colorkem.com
Cationic Brighteners	Cationic	Fabrics, coatings	www.China-dyestuff.com
Anionic Brighteners	Anionic	Plastics, textiles	obachemical.com
Optical Brightener ER-II	Stilbene derivative	Polyester, nylon, plastics	www.afinechem.com

Applications of Optical Brightener ER-II

Optical Brightener ER-II is primarily used in the textile industry for whitening polyester fibers. Its high fluorescence intensity ensures that fabrics appear vibrant and fresh. Additionally, it is effective in plastics, enhancing the visual appeal of products. The brightening effect is particularly beneficial in applications where aesthetics are crucial, such as in consumer goods and packaging.

In the paper industry, Optical Brightener ER-II improves the brightness of paper products, making them more visually appealing. Its use in detergents also enhances the whiteness of laundry, providing a cleaner appearance to fabrics.

Advantages of Using Optical Brightener ER-II

High Efficiency: Optical Brightener ER-II offers excellent whitening performance, requiring lower dosages compared to other brighteners.
Versatility: It can be used across various materials, including textiles, plastics, and paper, making it a versatile choice for manufacturers.
Durability: The brightening effect is long-lasting, ensuring that products maintain their visual appeal over time.
Environmental Safety: Many optical brighteners, including ER-II, are designed to be environmentally friendly, reducing the impact on ecosystems.

Conclusion

Optical Brightener ER-II is a vital component in enhancing the brightness and whiteness of various materials. Its technical features, versatility, and effectiveness make it a preferred choice in industries such as textiles, plastics, and paper. As manufacturers continue to seek ways to improve product aesthetics, the demand for optical brighteners like ER-II is expected to grow.

FAQs

1. What is Optical Brightener ER-II used for?
Optical Brightener ER-II is primarily used for whitening polyester fibers, plastics, and paper products, enhancing their brightness and visual appeal.

2. How does Optical Brightener ER-II work?
It absorbs ultraviolet light and re-emits it as visible blue light, making materials appear brighter and whiter.

3. Is Optical Brightener ER-II environmentally friendly?
Yes, many formulations of Optical Brightener ER-II are designed to be environmentally safe, minimizing ecological impact.

4. Where can I purchase Optical Brightener ER-II?
You can find Optical Brightener ER-II from various suppliers, including www.cncolorchem.com, www.colorkem.com, and www.afinechem.com.

5. What are the advantages of using Optical Brightener ER-II?
The advantages include high efficiency, versatility across materials, durability of the brightening effect, and environmental safety.