Does optical brighteners in laundry detergent have warranty period?

Yes, we set a warranty period for optical brightener . The warranty time will be shown on the product page and in the instruction manual together with the product. During the warranty, ChemFine International Co., Ltd. promises to repair or replace the product without charging any fees like maintenance fees to the customers. But the compensation behaviours are conducted on condition that the imperfections are caused by our poor workmanship and operational mistakes. Some evidence should be submitted to facilitate the handling of compensation.

ChemFine International enjoys a good reputation and image among competitors. We embrace competence and experience in self-developing and manufacturing optical brightener. The photoinitiator series is one of the main products of ChemFine International. optical brightener adopts fluorescent brightener 28 materials to improve its performance. This product has a long service life. It has passed the ageing tests which verify its resistance to the effects of light or heat.

Under the concept of win-win cooperation, we are working to seek long term partnerships. We unwaveringly refuse to sacrifice product quality and customers' service.