Where to get help if optical brightener ob-1 gets problem during the use?

Generally, we offer optical brightener along with warranty service, within a limited period. Within the warranty period, if there is any quality problem due to poor workmanship or others caused by us, contact us. We offer return, replacement, as well as maintenance services. If the problems happen after the warranty expires or are caused by your improper use, you can also contact us. We will try our best to solve your problem, which is what our after-sales service is for.

As a key focus in developing and manufacturing irgacure 369, ChemFine International Co., Ltd. has been prestigious for many years in the domestic markets. The optical brightener series is one of the main products of ChemFine International. Our optical brightener are made of fluorescent brightener 28 and by professional skills. This product is consistent with a high level of protection for the safety and health of persons. It has been tested in terms of sections that can entrap fingers and other body parts, sharp edges and corners, shear and squeeze points, etc.

We adhere to the business philosophy of 'honesty, pragmatism, cooperation and win-win'. We take customers' concerns into consideration and spare no effort to offer targeted product solutions for them.