About Hongyi

Established in 2018, Zhejiang Hongyi Chemical Co., Ltd. is strategically located in the industrial zone of Longquan City, Zhejiang Province. Over the years, the company has made significant strides in its development, establishing a robust research and development center and two production bases. Hongyi has forged collaborative research partnerships with several renowned universities in China, contributing to the formulation of national standards.

As a national high-tech enterprise, Hongyi specializes in the research, development, manufacturing, and technical services of fluorescent brightening agents and optical whiteners.

0₊

Exporting Countries
0₊

Partners
0_t

Annual Output

R&D Team

R&D Team

Our company owns a Ph.D. innovation station and has been recognized as a National High-Tech Enterprise, playing a pivotal role in drafting national standards.
Robust Production

Robust Production

We boast an annual production capacity of 5,000 tons of high-performance optical brighteners, catering to customized production in small batches and offering OEM services for international brands.
Quality Assurance

Quality Assurance

Employing full-process digital management, we adhere to a philosophy of "Quality Manufacturing." From raw material testing to production inspections and final product checks, we maintain standards that surpass national benchmarks.
Technical Support

Technical Support

We are staffed with a team of highly qualified application engineers who provide services and comprehensive guidance throughout the pre-sale, sale, and after-sale processes, delivering professional solutions tailored to our clients' needs.

2025-09-12 How Does Optical Whitener Enhance Fabric Brightness And Longevity?
Across both household laundry and industrial manufacturing, products often requi...
2025-09-05 What Are The Key Benefits of Optical Whitener in Laundry?
For many everyday products, including clothing and even technical materials like...
2025-08-29 Enhance Brightness: Explore Fluorescent Whitening Agent OB-1
From the plastic containers in kitchens to the fabrics in clothing, the pursuit ...
2025-08-22 Consistent Quality Optical Brightener OB-1 For Whitening Applications
Fluorescent Whitening Agent has become a staple in modern manufacturing, address...
2025-08-15 Fluorescent Whitening Agent OB-1: High-Performance Brightening Solutions
From the crisp whiteness of plastic containers to the bright sheen of textile fa...
2025-08-08 Precision Fluorescent Whitening Agent Solutions Featuring OB-1
Advances in materials science continue to drive the demand for precise optical e...

Plastic whitener

Printing and dyeing whitening agent

laundry whitener

paper whitening agent

R&D center

Factory Environment

Certificate of Honor

FAQ

Plastic industry

Textile industry

paper industry

Laundry industry

Company news

Industry news

Contact us

Recruitment information

网页菜单

产品搜索

语言

退出菜单

As a national high-tech enterprise, Hongyi specializes in the research, development, manufacturing, and technical services of fluorescent brightening agents and optical whiteners.

网页菜单

产品搜索

语言

分享

退出菜单

As a national high-tech enterprise, Hongyi specializes in the research, development, manufacturing, and technical services of fluorescent brightening agents and optical whiteners.