What does “Metal Free Leathers” mean?

Above a certain concentration, the heavy metals are carcinogenic or otherwise be toxic to humans and the environment.
Metal Free leathers are tanned and finished without resorting to heavy metals, specifically: Aluminum, Chrome, Iron, Titanium e Zirconium.

Why Metal Free?

Metal Free leathers are hypoallergenic and do not pollute the environment, particularly waters, with heavy metals, since they are produced without using these elements, neither directly nor within their transformation process.

What is the difference between Metal Free and Chrome Free?

Metal Free leathers are also chrome free, while the Chrome Free certification does not exclude the presence of other heavy metals like aluminium, titanium and zirconium in the tanning process.

Which are the reference standards?

The currently recognized standard for a certified Metal Free leather, is that the sum of the 5 metals listed above is less than 1000 parts per million (0.1%) on the total weight of the leather. The analyses are certified by accredited laboratories.

Why Metal Free?

Metal Free leathers are hypoallergenic and do not pollute the environment, particularly waters, with heavy metals, since they are produced without using these elements, neither directly nor within their transformation process.

What is the difference between Metal Free and Chrome Free?

Metal Free leathers are also chrome free, while the Chrome Free certification does not exclude the presence of other heavy metals like aluminium, titanium and zirconium in the tanning process.

Which are the reference standards?

The currently recognized standard for a certified Metal Free leather, is that the sum of the 5 metals listed above is less than 1000 parts per million (0.1%) on the total weight of the leather. The analyses are certified by accredited laboratories.
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