Dunlop
or Talalay, that is the question.
There's
a lot of confusion about what Dunlop and Talalay mean. They are neither
types of latex nor types of rubber trees, but types of processing. Dunlop
is a process that's been around since 1929 and involves the traditional
manufacturing method. Talalay is the name of a newer process. Here's how
they differ.
Dunlop
When
Dunlop latex is made, the serum is frothed in a centrifuge, poured into
a mold, covered and baked at a low temperature. The natural sediments
in the latex settle to the bottom of the mold, which yields a layer that
is slightly firmer on the bottom side.
Talalay
In
the Talalay process, after the latex is poured, the mold is sealed and
air is vacuumed out. Then the mold is flash-frozen to stabilize the material.
This produces a more consistent cell structure, as some of the weaker
air bubbles are vacuumed out. Because of the added steps, Talalay latex
is more expensive than Dunlop.
What's
the difference between Talalay latex and Dunlop process latex?
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The
Talalay process is a highly controlled, sophisticated latex manufacturing
process that produces the highest quality and most consistent latex
available in the world. The Dunlop process is the most commonly
used production method globally.
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| Talalay
Process


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The
major difference between the two processes is what happens
in the mold just prior to the initial latex curing stage.
In the Talalay process only a small amount of latex compound
is poured into the mold. Air is extracted to perfectly distribute
the foamed liquid inside the mold and to create a consistent
round, open cell structure. The mattress core is flash frozen
to lock the cell structure in place and to prevent the particles
from settling.
In
the Dunlop process, the molds are filled to the rim, air
is not added, and there is no freeze stage. Therefore, the
latex cell structure is less "airy". Gravity takes over
and particles settle creating a denser product than Talalay
latex.
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Dunlop
Process

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