
Company profile
Zhejiang Hongyi Chemical Co., Ltd. is located in Longquan, a city in the southwest of Zhejiang Province. It is a technology-oriented enterprise specializing in R&D and sales of fluorescent whitening agents.Since its establishment, the company has always adhered to the modern management concept, has a complete quality management system, equipped with advanced quality testing equipment and technical experts to ensure the stability of product quality. The company also has a complete after-sales system and dedication to provide customers with satisfactory service. For more than ten years, Hongyi has only focused on the field of fluorescent whitening agents, and has won the trust and support of customers with reasonable price and sincere service. Facing the arrival of the new economic era in the 21st century, our company will continue to develop and innovate, market-oriented, and always adhere to the values of "mutual benefit and win-win", creating value for all customers and partners. We are willing to use our sincerity to accompany you to create a better future! View more
Focus optical brighteners applications
▪Have a senior engineer research and development center
▪A technology-based company specializing in the development and sales of fluorescent whitening agents
▪Have a senior engineer research and development center
▪A technology-based company specializing in the development and sales of fluorescent whitening agents
0578-7213888
0578-7330055
Strict quality control system
Self-developed raw material traceability system, from the source to control quality, each link in production is responsible for. A test report is issued before the delivery of the product, and the product quality responsibility letter is signed by the quality inspector.
Excellent testing equipment
The testing center is equipped with type self-checking equipment, gas chromatograph, liquid chromatograph, spectrophotometer, automatic color difference meter, automatic melting point instrument, etc.
Advanced management concept
The company always adheres to the principle of “survival by quality, development by science and technology”, adopts modern technological layout, implements scientific management, and has perfect quality system.