Close this search box.

The Complete Guide to Optical Brightener OB-1 in 2024

What is Optical Brightener OB-1?


Optical Brightener OB-1 is a chemical compound widely used as a whitening agent in various industries. Its superior brightening qualities make it a preferred choice for enhancing the visual appeal of products ranging from plastics to textiles. The scientific name for OB-1 is 2,2′-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BISBENZOXAZOLE.


Chemical Name of Optical Brightener OB-1

As mentioned above, the chemical name of Optical Brightener OB-1 is 2,2′-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BISBENZOXAZOLE. This compound belongs to the benzoxazole class of chemicals, known for their impressive brightening capabilities.


Manufacturer of Optical Brightener OB-1

Wellt is a leading manufacturer of Optical Brightener OB-1, recognized for its commitment to quality and consistency. Wellt ensures rigorous quality checks and follows stringent manufacturing protocols to deliver a high-performance product that meets industry standards.


Technical Features of Optical Brightener OB-1

Optical Brightener OB-1 boasts several technical features that contribute to its wide usage. It exhibits excellent resistance to heat, making it suitable for high-temperature processes. Additionally, it demonstrates remarkable chemical stability, ensuring long-lasting brightness.


Application of Optical Brightener OB-1

Optical Brightener OB-1 finds applications in a variety of sectors. In the plastics industry, it is used to whiten and brighten products such as PVC, PE, PP, ABS, PS, and other synthetic materials. In the textile industry, it is utilized to enhance the appearance of fabrics. Furthermore, it’s used in coatings and printing inks for its brightening effects.

Application of Optical Brightener OB-1
Application of Optical Brightener OB-1

How to Use Optical Brightener OB-1?


Using Optical Brightener OB-1 effectively requires a deep understanding of its properties and appropriate dosages. This guide aims to provide detailed instructions on the optimal use of OB-1, highlighting its varied applications across different materials and industries, including plastics, textiles, coatings, and ink manufacturing.


Recommended Dosage of Optical Brightener OB-1

The dosage of Optical Brightener OB-1 depends mainly on the specific application and material in question. Generally, for plastic applications, a dosage between 0.01%-0.05% is recommended. However, it is vital to carry out tests under actual processing conditions to determine the most effective dosage.


Properties and Applications of Optical Brightener OB-1 in Different Materials

Optical Brightener OB-1 exhibits remarkable properties such as high-temperature resistance and excellent chemical stability, making it suitable for a wide range of materials. These include plastics like PVC, PE, PP, ABS, PS, synthetic fibers, and various types of coatings and inks.


Fluorescent Whitening Agent OB-1 in Plastic Industry

In the plastics industry, OB-1 serves as a fluorescent whitening agent. It is used in PVC, PE, PP, ABS, and PS to enhance their whiteness and brightness. The high-temperature resistance of OB-1 makes it ideal for plastic processing that involves high temperatures.


Optical Brightener OB-1 in Textile Applications

In textile applications, OB-1 is used to improve the appearance of fabrics, giving them a bright and fresh look. It is particularly effective in synthetic fibers, where it helps in achieving a brilliant white effect.


Optical Brightener OB-1 in Coating and Ink Manufacturing

OB-1 also finds application in the coating and ink manufacturing industry. It is used to increase the brightness and whiteness of coatings and inks, enhancing their overall visual appeal. The chemical stability of OB-1 ensures that the brightening effect lasts for a considerable period.

Optical Brightener OB-1 in Coating and Ink Manufacturing
Optical Brightener OB-1 in Coating and Ink Manufacturing

What Are the Benefits of Using Optical Brightener OB-1?


Optical Brightener OB-1 is a crucial component in various industries due to its impressive brightening and whitening properties. This compound, known scientifically as 2,2′-(1,2-Ethenediyldi-4,1-phenylene) bis benzoxazole, offers several benefits when used in different applications, especially in the manufacture of fibers, PVC, nylon, and other polymers. In this section, we will delve into the specific advantages of using Optical Brightener OB-1.


Whitening and Brightening Effects in Different Products

One of the primary benefits of Optical Brightener OB-1 is its ability to enhance the whiteness and brightness of a wide range of products, whether it’s plastics, textiles, or coatings. The addition of OB-1 results in a visually appealing, brighter product that stands out in terms of quality and appearance.


Enhanced Properties in Fiber, PVC, Nylon, and Other Polymers

OB-1 also plays a critical role in enhancing the properties of various materials like fiber, PVC, and nylon. Its excellent heat resistance and chemical stability make it suitable for processes involving high temperatures and varying chemical conditions, thus improving the overall performance and durability of these materials.


Fluorescent Brightener OB-1’s Impact on Whiteness and Brightness

As a fluorescent brightener, OB-1 has a significant impact on the whiteness and brightness of the products. It absorbs invisible ultraviolet light and re-emits it as visible light in the blue range of the spectrum, creating a perception of enhanced whiteness and brightness.


Improved Dispersion and Brightness in Various Manufacturing Processes

Another benefit of OB-1 is its ability to improve dispersion in various manufacturing processes. This, coupled with its brightening effect, allows for uniform coloring and a consistent brightening impact across the product, enhancing its overall aesthetic appeal.


Light Fastness and Resistance Offered by Optical Brightener OB-1

Lastly, OB-1 offers excellent light fastness and resistance. This means that products treated with OB-1 can maintain their brightness and whiteness even when exposed to light for extended periods. This property makes OB-1 a preferred choice in industries where products are subject to prolonged light exposure.

Light Fastness and Resistance Offered by Optical Brightener OB-1
Light Fastness and Resistance Offered by Optical Brightener OB-1

Understanding the Technical Data Sheet (TDS) of Optical Brightener OB-1


A Technical Data Sheet (TDS) is a comprehensive document that provides detailed information about a product’s properties, applications, handling and storage guidelines, and safety measures. When it comes to Optical Brightener OB-1, understanding the TDS is crucial for its practical and safe use. This guide aims to provide an in-depth understanding of the TDS for Optical Brightener OB-1.


Overview of TDS for Optical Brightener OB-1

The TDS for Optical Brightener OB-1 usually includes a wealth of information, covering everything from the product’s key properties and specifications to guidelines on its application. It also contains important details concerning the handling, storage, and safety precautions associated with the product.


Key Properties and Specifications Listed in TDS for Optical Brightener OB-1

The TDS for OB-1 lists several key properties and specifications that users need to be aware of. These include the product’s chemical name, molecular structure, appearance, solubility, melting point, and other physical and chemical properties. It also outlines the product’s performance characteristics, such as its heat resistance, chemical stability, and brightening ability.


Application Guidelines and Recommendations in TDS for Optical Brightener OB-1

The TDS also provides valuable information on how to use OB-1 effectively. This includes recommended dosages for different applications, processing conditions, and compatibility with other materials. Following these guidelines can help users optimize the performance of OB-1 and achieve the desired results.


Handling, Storage, and Safety Information in TDS for Optical Brightener OB-1

Another important aspect covered in the TDS is the handling, storage, and safety information. This includes details on how to handle the product safely, how to store it to maintain its effectiveness, and what precautions to take to avoid any potential hazards. Understanding and adhering to these guidelines is essential to ensure the safe use of OB-1.


Obtaining TDS and Other Technical Information for Optical Brightener OB-1

The TDS for OB-1 can be obtained directly from the manufacturer or authorized distributors. This document is typically provided free of charge and is a valuable resource for anyone using or considering the use of OB-1. In addition to the TDS, manufacturers may also offer other technical resources such as Material Safety Data Sheets (MSDS), application guides, and product brochures.


Where Can You Find High-Quality Optical Brightener OB-1 Products?


Finding high-quality Optical Brightener OB-1 products can be a daunting task, given the number of suppliers and manufacturers available in the market. However, with the correct information, the process becomes considerably more manageable. This guide aims to provide an overview of leading suppliers and manufacturers of Optical Brightener OB-1, qualities to consider when choosing these products, their effectiveness in various applications, and how to obtain quotes and contact details for procurement.


Leading Suppliers and Manufacturers of Optical Brightener OB-1

The global market is replete with numerous suppliers and manufacturers of Optical Brightener OB-1. Here, we list five leading entities:


  1. Raytop Chemical: As one of the top manufacturers in China, Raytop Chemical has 15 years of production and marketing experience.
  2. HONGXIN: HONGXIN is known for its high-quality Optical Brightener OB-1 products manufactured in China.
  3. R CHEMINE PRODUCTS PRIVATE LIMITED: Based in Vadodara, Gujarat, this company is a well-known manufacturer and supplier of Optical Brightener OB-1.
  4. iSuoChem: iSuoChem is a professional leader supplier of fluorescent brightening agents including Optical Brightener OB-1 for plastics.
  5. Sancai Industry: As a professional supplier, Sancai Industry provides Optical Brightener OB-1 products with high assay and low ash content.

Qualities to Consider when Choosing Optical Brightener OB-1 Products

When choosing Optical Brightener OB-1 products, consider their chemical and physical properties such as appearance, melting point, assay, and ash content. Additionally, look for products with excellent heat resistance, chemical stability, and brightening ability. The supplier’s reputation, quality control measures, and customer service are also important factors to consider.


Effectiveness and Impact of Optical Brightener OB-1 in Various Applications

Optical Brightener OB-1 is highly effective in enhancing the whiteness and brightness of various materials, including plastics, textiles, and coatings. Its ability to absorb ultraviolet light and re-emit it as visible blue light makes it an excellent choice for applications requiring enhanced visual appeal.


Availability and Quotes for Optical Brightener OB-1 Products

Availability and quotes for Optical Brightener OB-1 products can be obtained directly from the suppliers’ websites or by contacting them via email or phone. Most suppliers offer bulk discounts and flexible delivery options to cater to different customer needs.


Contact Information for Procuring Optical Brightener OB-1

The contact information for procuring Optical Brightener OB-1 can usually be found on the suppliers’ websites. This typically includes phone numbers, email addresses, and physical addresses. Some suppliers also offer online contact forms for customer convenience.




  1. Tampling: Optical Brightener Water Quality Sampling: This source provides insight into a unique application of Optical Brighteners – detecting human sewage contamination in stormwater. It demonstrates the versatility of OB-1 beyond just brightening and whitening applications.
  2. Optical Brightener – an overview | ScienceDirect Topics: This academic resource offers a comprehensive overview of optical brighteners, including their use to mask the yellowness of plastics and improve color vibrancy.
  3. What is an optical brightener – YouTube: This video provides a basic understanding of what an optical brightener is, including OB-1, and its uses, particularly in the textile industry.
  4. Optical Brightener OB-1 Market Research Report: This market research report provides a detailed analysis of the Optical Brightener OB-1 market’s financial status, size, and revenue projections up to 2030.
  5. Optical brighteners – Houzz: This discussion thread on Houzz provides real-world insights into consumer experiences with products containing optical brighteners, including laundry detergents.
  6. Optical Brightener (Fluorescent Brightener) Agent KCB: This manufacturing website provides information about a specific type of optical brightener (KCB) and its applications in plastic whitening and brightening.
  7. Optical Brightener OB-1 for Plastics: This LinkedIn article discusses the wide-ranging applications of Optical Brightener OB-1 in plastic film, lamination molding, injection molding, and more.
  8. Benetex OB-1 Data Sheet: This data sheet provides technical specifications and properties of Benetex® OB-1, a specific brand of Optical Brightener OB-1.
  9. Optical Brightener OB-1 – Rhodamine b dye: This source provides detailed information about the features of Optical Brightener OB-1, highlighting its heat-resistant and light-resistant properties.
  10. What Are The differences between OB and OB1?: This source explains the differences between Optical Brightener (OB) and Optical Brightener -1(OB-1), providing clarity on these often-confused terms.


Recommended reading: Get Professional Optical Brightener OB-1 Sourcing Services

Products From Wellt
Recently Posted
Blog Categories
Contact Wellt
Contact Form Demo
Scroll to Top
Get in touch with us
Leave a message
Contact Form Demo