Application of polyurethane sponge whitening agent in improving sofa comfort and aesthetics

Polyurethane sponge whitening agent: a secret weapon to improve sofa comfort and aesthetics 1. Introduction: The magic that makes the sofa rejuvenate As the soul of the living room, the sofa is not only a harbor for family members to relax, but also an important place to receive guests. However, over time, the polyurethane sponge inside the sofa may gradually turn yellow due to oxidation, light…