China Fluorescent Whitening Agent Manufacturers and Suppliers - Factory Direct Price

Your Professional Fluorescent Whitening Agent Supplier

INNO-CHEM is a professional manufacturer and exporter of dyes, chemicals, textile auxiliaries, and TPU films in China. Our main products include disperse, reactive, acid, direct, vat, solvent, and cationic dyes, as well as dye intermediates and specialty chemicals. These products are widely used in textile dyeing, printing, inks, plastics, leather, coatings, and polymer processing.

Fluorescent Brightener OB
PRODUCT NAME: Fluorescent Brightener OB. TYPE: Fluorescent Whitening Agent. CAS NO: 7128-64-5. MOQ: 100KG. PACKAGE: Kraft paper bags.
Fluorescent Brightener 135
PRODUCT NAME: Fluorescent Brightener 135. TYPE: Fluorescent Whitening Agent. CAS NO: 1041-00-5. MOQ: 100KG. PACKAGE: Kraft paper bags.
Fluorescent Brightener MST
PRODUCT NAME: Fluorescent Brightener MST. TYPE: Fluorescent Whitening Agent. CAS NO: 55585-28-9. MOQ: 100KG. PACKAGE: Drum.
Fluorescent Brightener PS-2000
PRODUCT NAME: Fluorescent Brightener PS-2000. TYPE: Fluorescent Whitening Agent. CAS NO: 13001-38-2. MOQ: 100KG. PACKAGE: Kraft paper bags.

Advanced Production System

Equipped with automated production lines, DCS control systems, spray drying towers, and testing laboratories to ensure stable quality and efficient manufacturing.

Strict Quality Control

Each batch is tested by HPLC, GC, and other inspection equipment to ensure purity, consistency, and reliable application performance.

Global Export Experience

Products are exported to Southeast Asia, the Middle East, South America, Japan, and South Korea with strong market recognition and stable cooperation.

24/7 Online Support

Use our online customer service window for any inquiries. We guarantee a 24-hour response time and ensure you never face delays due to communication gaps.

Parameter

Melting Point	180-181℃
Appearance	Powder to crystallization
Boiling Point	>400℃
Density	1.28
Form	Solid
Color	White, yellow or green

Advantages of Fluorescent Whitening Agent

01/

Enhanced Whiteness and Brightness
One of the primary benefits of optical brightening agents is their ability to significantly enhance fabric whiteness. By reflecting more light, OBAs make fabrics appear cleaner and brighter, which is highly desirable in industries like fashion and home textiles,

02/

Improved Fabric Aesthetics
Fabrics treated with OBAs exude a polished and premium look.This enhancement in visual appeal makes them more attractive to consumers, boosting their market value

03/

Cost-Effective Brightening Solution
Compared to traditional methods of bleaching or dyeing to improve fabric appearance, optical brightening agents provide a cost-efficient alternative. They require minimal processing time and resources, making them an economical choice for textile manufacturers.

04/

Versatile Application Across Fabrics
OBAs are highly versatile and compatible with various textile substrates, including cotton, polyester, nylon, and blended fabrics. This adaptability ensures consistent brightness across diverse fabric types.

05/

Enhanced Color Vibrancy
In addition to improving whiteness, OBAs enhance the vibrancy of dyed fabrics. The blue light emission complements color intensity, making shades appear more vivid and attractive

06/

Boosted Process Efficiency
Using OBAs in the pretreatment stage simplifies downstream processes. Enhanced fabric brightness reduces the need for additional treatments, streamlining production workflows and saving time,

Applications of Fluorescent Whitening Agent

Laundry detergents

Optical brighteners are added to laundry detergents to make clothes appear whiter and brighter. They help restore dingy clothes to a fresher, cleaner look.

Paper products

From tissue to paper towels, optical brighteners make paper products look brighter and white, giving the perception of cleanliness and quality.

Plastics

Optical brighteners added to plastics like PVC can make them look brighter white or other lighter colors. This is especially desirable for plastic furniture that can yellow over time.

Textiles

Clothing, linens, and other textiles often contain optical brighteners, which maintain the bright white color of new fabrics during washing.

Cosmetics and skincare

Creams, serums, and other products use small amounts of optical brighteners to reduce the appearance of skin discoloration and brighten overall skin tone.

Fluorescent Whitening Agents VS Titanium Dioxide

Property	Fluorescent Whitening Agents (FWAs)	Titanium Dioxide (TiO2)
Working Principle	Absorb UV light and emit blue light	Scatter visible light for opacity
Main Benefit	Improve whiteness and brightness	Increase opacity and hiding power
Usage Level	Low dosage required	Higher loading required
UV Dependence	Needs UV light to perform	Works without UV light
Interaction	May interact with UV absorbers and pigments	May lower FWA performance by blocking UV light

Precautions for the Use of Fluorescent Whitening Agents

Strictly Control the Dosage
Although fluorescent whitening agents can achieve excellent whitening effects, more is not always better. Excessive use not only increases costs but may also cause negative phenomena such as yellowing and graying of products, seriously affecting product quality. Different types of fluorescent whitening agents have their optimal dosage ranges in various application scenarios.

Pay Attention to the Usage Environment
Temperature: Temperature has a significant impact on the dissolution and dispersion properties of fluorescent whitening agents. For example, in plastic processing, the suitable processing temperature for most fluorescent whitening agents is between 180°C and 250°C.
PH Value: Fluorescent whitening agents are also sensitive to the pH value of the usage environment. For instance, certain fluorescent whitening agents used for whitening cotton fabrics are suitable for use in a weakly alkaline environment (pH 8 - 10).

Ensure Uniform Dispersion
Fluorescent whitening agents must be fully dispersed during use. Otherwise, it will lead to uneven whitening of products, affecting the appearance quality. For solid powder fluorescent whitening agents, they can be first dissolved in an appropriate solvent to prepare a solution of a certain concentration, and then added to the production system.

Safety Protection
Although most fluorescent whitening agents are harmless to the human body under normal use conditions, during the production and use process, there is still a potential risk of harm to the human body through inhalation, skin contact, etc. Therefore, operators should wear personal protective equipment such as protective masks, gloves, and goggles to avoid direct contact with the whitening agents.

Storage and Transportation
Fluorescent whitening agents should be stored in a cool, dry, and well - ventilated warehouse, avoiding direct sunlight and high - temperature environments. At the same time, pay attention to moisture prevention to prevent the whitening agents from caking and deteriorating due to moisture. During transportation, handle with care to prevent packaging damage. The transportation vehicles should be kept clean and dry, and avoid mixed loading and transportation with flammable, explosive, and corrosive substances.

Ordering Process

Inquiry

Quotation

Communication

Order confirming

Deposit payment

Production

Testing and debugging

Balance payment

Packing

Delivery

Customer receiving

After service

Packaging and Shipping

Packaging	Packaged in barrels, cartons, or bags
Shipping	By sea

Our Factory

We have a production base with hundreds of workers on the production line, equipped with advanced equipment and manufacturing technology. We produce over 30,000 tons of dyes and auxiliary products annually, including 12,000 tons of disperse dyes and 15,000 tons of direct, acid, and basic dyes.

Our Certificates

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FAQ

Q: What is a fluorescent whitening agent?

A: A fluorescent whitening agent is a chemical additive that absorbs UV light and emits blue light. It makes fabrics, plastics, and paper appear brighter and whiter by enhancing the visible whiteness.

Q: How do fluorescent whitening agents work?

A: A white surface treated with an optical brightener can emit more visible light than that which shines on it, making it appear brighter. The blue light emitted by the brightener compensates for the diminishing blue of the treated material and changes the hue away from yellow or brown and toward white.

Q: Can fluorescent whitening agents be used in paper production?

A: Yes, fluorescent whitening agents are widely used in paper and cardboard to enhance whiteness. They make paper appear brighter and cleaner, improving print quality and visual appeal.

Q: Do fluorescent whitening agents affect fabric color?

A: Fluorescent whitening agents do not dye fabrics. They enhance the whiteness by emitting blue light, making fabrics look brighter and counteracting yellow tones.

Q: Is a fluorescent whitening agent safe for home use?

A: Fluorescent whitening agents are generally safe when used in recommended amounts. They are used in detergents, paper, and textiles, but protective gloves are advised during industrial handling.

Q: Are fluorescent whitening agents affected by UV light?

A: Yes, fluorescent whitening agents rely on UV light to work. They absorb UV rays and emit blue light, so their performance depends on the presence of sunlight or artificial UV light.

As one of the most professional fluorescent whitening agent manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to buy high-grade fluorescent whitening agent made in China here from our factory. For price consultation, contact us.

coloring dye, textile dye, C I Fluorescent Brightener PS 2000