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Leading manufacturer of Optical Brighteners, Titanium Dioxide, Organic Pigments, and High-Performance Additives since 1997. Trusted by global partners in plastics, textiles, paper, and detergent industries.

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Lianda Group Factory

About Lianda Group

Lianda Group is a specialized manufacturer of Optical Brighteners, Titanium Dioxide, Pigments, and Additives. With over 30 types of optical brighteners developed, we serve industries worldwide with high-performance chemical solutions.

Established in 1997, Lianda now operates four advanced production facilities across China, ensuring consistent quality, scalability, and innovation. Our commitment to R&D and sustainable manufacturing has positioned us as a trusted partner in over 50 countries.

1997
Founded
4
Factories
30+
OBA Types
50+
Countries Served

Our Product Range

High-performance chemical additives engineered for durability, brightness, and stability across industrial applications.

Optical Brightener OBA

Optical Brightener (OBA)

Enhances whiteness and brightness in plastics, paper, textiles, and detergents with high fluorescence efficiency.

  • • UV fluorescence activation
  • • High thermal stability
  • • Compatible with polymers
Titanium Dioxide

Titanium Dioxide

Premium-grade TiO₂ for superior opacity, brightness, and UV resistance in coatings, plastics, and inks.

  • • Rutile & Anatase forms
  • • Surface-treated options
  • • High dispersion stability
Organic Pigment

Organic Pigment

Vibrant, light-fast pigments for plastics, inks, and coatings with excellent color strength.

  • • Wide color gamut
  • • High tinting strength
  • • Solvent resistance
Fluorescent Pigment

Fluorescent Pigment

High-visibility pigments for safety gear, signage, and novelty applications under UV light.

  • • Neon & daylight colors
  • • UV excitation
  • • Polymer compatible
Ultramarine Blue

Ultramarine Blue

Inorganic blue pigment with excellent heat and light stability for plastics and coatings.

  • • Sulfur-based compound
  • • Non-bleeding
  • • Alkali resistant
Iron Oxide

Iron Oxide

Red, yellow, and black iron oxides for construction materials, coatings, and plastics.

  • • High opacity
  • • Weather resistant
  • • Non-toxic
Carbon Black

Carbon Black

Reinforcing and coloring agent for rubber, plastics, and inks with high UV absorption.

  • • High surface area
  • • Conductive grades
  • • UV protection
Pearl Pigment

Pearl Pigment

Iridescent effects for cosmetics, coatings, and packaging with natural luster.

  • • Mica-based
  • • Multi-angle effects
  • • Eco-friendly
Light Stabilizer

Light Stabilizer

Protects polymers from UV degradation, extending product life in outdoor applications.

  • • HALS technology
  • • Long-term stability
  • • Low volatility
UV Absorber

UV Absorber

Absorbs harmful UV radiation to prevent yellowing and embrittlement in plastics and coatings.

  • • Benzotriazole & Benzophenone types
  • • High absorption efficiency
  • • Compatible with resins
Nucleating Agent

Nucleating Agent

Improves crystallization rate and clarity in polypropylene and polyethylene products.

  • • Enhances stiffness
  • • Reduces cycle time
  • • Improves transparency
Antioxidant (AO)

Antioxidant (AO)

Prevents oxidative degradation during processing and service life of polymers.

  • • Primary & secondary AOs
  • • High thermal stability
  • • Low discoloration

Why Choose Lianda Group?

Quality Assurance

ISO-certified processes and rigorous QC ensure batch-to-batch consistency and reliability.

Fast Delivery

Global logistics network ensures timely delivery to over 50 countries with flexible MOQs.

Technical Support

Dedicated R&D team provides formulation guidance and application troubleshooting.

Global Reach

Serving customers in Europe, Americas, Asia, and Africa with multilingual support.

25+
Years Experience
4
Production Facilities
30+
OBA Types
50+
Countries Served

Latest News

Office Move
May 17, 2021

Lianda Group Headquarters Moved

Celebrating the move to our new office in Changsha, China. Visit us at No.2206 C1 Yongsheng Commercial Plaza.

Trade Show
Oct 28, 2020

LD CHEMICAL to Attend 2nd China Coatings Expo

Showcasing our latest innovations in optical brighteners and additives for coatings.

Technical Article
Sep 28, 2020

What is Optical Brightener?

Learn how fluorescent whitening agents work and their applications in various industries.

Get in Touch

Reach out to our team for product inquiries, technical support, or partnership opportunities.

Headquarter

Lianda Group

No.2206 C1, Yongsheng Commercial Plaza

No.222 Laodong East Road, Yuhua District

Changsha City, Hunan Province, China 410001

TEL: +86-731-85506996

FAX: +86-731-86908489

Factory

LD Chemical Co., Ltd.

No.10 Luositang Road

Changsha Economic and Technological Development Zone

Changsha, Hunan, China

TEL: +86-731-85506997

FAX: +86-731-88726158

Email: info@cnldchem.com

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