Latex pillows are made from natural latex foaming with a high-tech process. Generally, there are two types of processing methods: TALALAY & DUNLOP.
TALALAY Method: mixing, injection molding, vacuuming (injecting CO2), freezing, vulcanizing, washing, and drying.
DUNLOP Method: mixing, foaming, injection molding, vulcanizing, washing and drying.
Basically, the TALALAY method uses physical foaming (vacuuming), while the DUNLOP method uses chemical foaming. The main difference being that one is foaming after injection molding, while the other is injection molding after foaming.
The TALALAY method has a higher cost and higher degree of difficulty than the DUNLOP method. Latex foam formed from the TALALAY method has an open-pore structure, while latex foam from the DUNLOP method is of a closed-pore structure. Latex pillows made from the TALALAY method has better elasticity and breathability, but involves a more complex process and higher cost.