AURO - The natural choice for daily life - page 28

LINSEED OIL
THE ALL-ROUNDER
It has an aromatic smell of hay that is also described as
herbaceous, musty and a bit toasty. The cultivation of oil
flax or fibrous flax dates back to the Stone Age already,
the sowing and the harvest are also to be seen on Old Egyp-
tian mural paintings. The flax plant delivers the linseed
oil as well as the fibres that are spun to linen fabrics. The
clear golden yellow oil is won from the linseed, i.e. the
ripe seeds of the oil flax. It is contained in many products
because of its high amount of saturated and polysaturated
fatty
acids. It is used in binding agents for the pro-
duction of paints and lacquers, in
foodstuffs and in cosmetics – a
truly versatile oil.
Linseed oil - decated
The
seeds of the small oil
flax with its wonder-
fully blue, sometimes
white blossoms get
harvested in July or
August at the latest.
Then the oil is won from
the flax seed in a careful proce-
dure by decating in a screw press.
The linseed is pressed slowly through
the screw press by a cylinder that exerts
slight pressure. In this process, the oil tem-
perature reaches a maximum of 40 °C.
Higher temperatures would lead to a detach-
ment of other plant components which would impair the
quality of the oil. The careful decating process makes lin-
seed oil one of the most precious and most expensive oils.
In paint production only decated oils can be used. The
remaining parts of the oil flax, e.g. the chaff, straw, and
the presscake, are used as cattle fodder or in insulating
materials. Nowadays, the oil is pressed in very big oil mills
which can lead to higher temperatures. The mucilage
extracted in the process gets coagulated by addition of mild
acids and is then filtered out.
Use at AURO
At AURO we use linseed oil from
certified organic farming (cof )
because of its outstanding technical
and physical properties. The warm
lustre, the elasticity, the penetration
capabilty and the moisture-regulating
features make this sustainable plant
raw material an ideal choice for the
binding agents in AURO products.
MULTIPLE USES
FOR THE PRODUCTION OF OIL PAINTS
AS PREMIUM NUTRITIONAL OIL
FOR SKIN REVITALISATION
from
c
ertified
o
rganic
f
arming
Oils and fats
cof
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