About Us

As a leading manufacturer in the chemical industry, our company Wenzhou Blue Dolphin New Material Co., ltd. is committed to meeting the diverse needs of our customers. Thanks to many years of experience and expertise, we have established ourselves as a reliable partner for companies in various industries. Our main focus is to manufacture and supply high quality chemical products that meet the needs of different industries.

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Hot Products

Our Advantages

What sets us apart from our competitors is our commitment to customer satisfaction. Our biggest selling points are our reliability, consistency and client-centric approach. We have built a reputation for delivering the highest quality products on time and at competitive prices. Additionally, we believe in building long-term relationships with our clients because we know mutual trust and collaboration are critical to success.

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New Products

  • Optical Brightener OB-1 cas1533-45-5

    Optical Brightener OB-1 cas1533-45-5

     Excellent brightening performance: OB-1 provides excellent brightening effect to enhance the visual appearance of your products. By neutralizing yellows and increasing whiteness, it creates an attractive, vibrant look. Versatility: Our OB-1 optical brightener is versatile and can be successfully applied in various industries. Whether you need a brightener for textiles, plastics, paper or detergents, OB-1 will produce excellent results.  Stability and durability: OB-1 has excellent stability ...

  • Optical Brightener OB cas7128-64-5

    Optical Brightener OB cas7128-64-5

     OBcas7128-64-5 belongs to the stilbene family, which ensures its superior performance as an optical brightener. Application: This fluorescent whitening agent is widely used in the textile industry, such as clothing, bedding, curtains and upholstery, etc., where vivid and bright colors are highly required.  Features Excellent whitening effect: OBcas7128-64-5 effectively corrects discoloration and dullness, giving the fabric a bright and beautiful appearance.  High affinity: suitable for diffe...

  • Fluorescent Brightener KSN cas5242-49-9

    Fluorescent Brightener KSN cas5242-49-9

     Whitening properties: KSN imparts bright fluorescence, thereby improving whiteness, which will surely attract customers’ attention. Its ability to convert UV radiation into visible blue light provides a unique brightening effect that will set your product apart from the competition.  Wide range of applications: KSN has a wide range of applications and can be used in various industries such as papermaking, textile printing and dyeing, and detergent manufacturing. Its compatibility with ...

  • Optical Brightener ER-1 cas13001-39-3

    Optical Brightener ER-1 cas13001-39-3

    ER-Ⅰ stands out among many optical brighteners for its excellent quality and excellent performance. It is widely regarded as a remarkable tool for transforming fabrics into brilliant, vibrant and visually appealing products. Our team of experts invested a lot of time and effort in developing the ER-I to ensure it exceeds industry standards. With its unrivaled whitening properties, it has become the first choice in industries such as textile, paper, plastics and detergents. The key to the succ...

  • Optical Brightener CBS-X/brightener 351 cas27344-41-8

    Optical Brightener CBS-X/brightener 351 cas2734...

     Product Details Chemical formula: C26H26N2O2  CAS number: 27344-41-8  Molecular weight: 398.50  Appearance: light yellow crystalline powder  Melting point: 180-182°C  Solubility: insoluble in water, soluble in organic solvents  Application: COB-351 is compatible with various polymers, including polyvinyl chloride (PVC), polyethylene (PE) and polyester (PET). It can be used in the manufacture of textiles, detergents, plastics, paper and other industries that need to improve whiteness and brig...

  • Optical Brightening Agent BBU/Optical Brightener 220 CAS16470-24-9

    Optical Brightening Agent BBU/Optical Brightene...

    Optical Brightener 220, a highly efficient and versatile fluorescent whitening agent, is widely used in the textile, paper, plastic, and detergent industries. It acts by absorbing invisible ultraviolet light and re-emitting it as visible blue light, thereby counteracting the natural yellowing of materials. This process dramatically improves the appearance of the final product, generating a brilliant and pure white effect.  Product Details 1. Specifications – The Chemical Optical Brighte...

  • Fluorescent Brightener 135 cas1041-00-5

    Fluorescent Brightener 135 cas1041-00-5

    fluorescent whitening agent 135 is a bright yellow powder, easily soluble in organic solvents, but insoluble in water. It has a high melting point and good thermal stability, ensuring its effectiveness in various processing techniques.  High Brightness and Whiteness Efficiency: Our chemical optical brightener 135 provides excellent brightness and whiteness improvement, making it an excellent choice for products requiring a vibrant and attractive appearance. The enhanced brightness effect is l...

  • Optical Brightener 378/ FP-127cas40470-68-6

    Optical Brightener 378/ FP-127cas40470-68-6

     Application Areas - Textiles: The Optical Brightener 378 can be easily applied to cotton, polyester, and other synthetic fabrics to enhance the appearance of finished textile products. - Plastics: This brightening agent is widely used in the plastics industry, where it helps improve the visual appeal of plastic materials and products. - Detergents: Optical Brightener 378 is an essential ingredient in laundry detergents, as it significantly boosts the brightness and whiteness of clothes.   Be...

  • Optical Brightener OB-2 cas2397-00-4

    Optical Brightener OB-2 cas2397-00-4

    OB-2 CAS 2397-00-4 offers several advantages  Excellent whitening effect: improve the whiteness and brightness of the material and enhance its visual appeal.  Enhanced Color Correction: Masks unwanted yellow tones, producing vivid, true-to-life colors.  UV Protection: Absorbs and neutralizes harmful UV radiation, preventing material degradation and maintaining its quality.  Wide range of applications: It is suitable for various materials such as plastics, textiles, paints, inks, etc., and has...

  • optical brightener KSNcas5242-49-9

    optical brightener KSNcas5242-49-9

    Physical properties - Appearance: white crystalline powder - Melting point: 198-202°C - Content: ≥ 99.5% - Moisture: ≤0.5% - Ash content: ≤0.1%   application  KSNcas5242-49-9 has a wide range of applications, including but not limited to - Textiles: Enhances the whiteness and brightness of fabrics, making them more visually appealing. - Paper: Improves the brightness and reflective properties of paper, resulting in vibrant prints and superior aesthetics. - Detergent: Adding KSNcas5242-49-9 to...

  • Optical Brightener ER-II  cas13001-38-2

    Optical Brightener ER-II cas13001-38-2

    ER-II cas 13001-38-2 is a highly versatile and stable optical brightener compatible with a wide variety of materials. It can be easily incorporated into various processes such as dyeing, printing and coating without compromising the integrity of the product. With its excellent stability and compatibility, it ensures long-lasting brightness and durability of the final product. One of the main advantages of ER-II cas 13001-38-2 is its excellent whitening effect. It effectively masks unwanted ye...

  • optical brightener 367/Optical Brightener KCBcas5089-22-5

    optical brightener 367/Optical Brightener KCBca...

     Excellent whitening performance: The chemical optical brightener 367cas5089-22-5 shows impeccable performance in improving color brightness and whiteness, effectively eliminating any unwanted yellowing or dullness. The result is products that effortlessly catch the eye and engage consumers.  Wide applicability: Our optical brighteners can be effectively applied to a variety of materials, including fabrics, plastics, paper and detergents. This versatility makes it a truly valuable solution fo...

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