Analysis and Solution of Yellowing of Sponge in White Packaging

Release date: 2017-05-17 Views: 470
Recently received a customer complaint that sponge placed a long time will turn yellow, ask is not a product material problems, especially made of jewelry box white packaging sponge lining more likely to turn yellow, the basic placement of about three months will be compared Significant changes, we are here specifically for the customer to answer this strange question.
Sponge itself is the reaction of chemical raw materials, chemical things encountered oxygen is more prone to oxidative chemical reaction, its obvious feature is the color changes, there will be light yellow, white is the most obvious