Physical decoloration in the concentration process of natural rubber

Natural rubber (NR) latex contains many components, especially non-rubber which can affect the color of products made from it. There is a growing demand in NR are lightly colored or filled. One way to reduce yellow remove for example, lipids and proteins, NR. This study focused on several decoloration techniques, including controlling centrifugation speed time as well percentage total solid content (% TSC) field latex. It was found that best condition containing less than 35% TSC at 12,000 rpm 30 min. In addition, very effective by washing centrifuged least twice. Other factors, such storage drying conditions, promoted coloration due oxidation non-rubbers.