What is the Dunlop process and what is the Talalay process?
Basically, there are two methods in the production of latex foam in this world. They are Dunlop Process (1928) and Talalay Process (1935). In the Dunlop Process air is beaten into liquid latex to form wet foam; minute amounts of fluoride (found also in tooth paste) is used to gel the foam in a mould. The moulds are then steamed to vulcanize to cure the foam. Subsequent to stripping, it goes through washing and drying. In the Talalay process, foamed latex is expanded by vacuum to fill the mould and freeze it to capture the bubble structure at –30°C, treating it with gaseous carbon dioxide and quickly rewarmed at 25°C and vulcanized at 110°C. Then it goes through the same process of stripping, washing and drying.
