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dimanche, décembre 16, 2007

GrassEstimate.com asks what yarn looks like real grass?

All artificial grass yarn falls into the category of either slit film
or monofilament. The obvious questions is which one is the best
choice? Slit film is made exactly as the name implies. It is extruded
as a solid sheet and slit into smaller ribbons or tapes. Therefore,
slit film does a good job of immulating wider blade grass when viewed
from a distance. Slit film also has the advantage that it can be
extruded at higher output rates than monofilament; therefore, a lower
cost. The disadvantage is a slit film yarn will always be basically a
flat yarn. Most real, wider-blade grass viewed up close has a spine
that cannot be immulated with a slit film yarn. This spine also acts
as a support and provides it with rigidity. Monofilament is extruded
where each individual fiber is extruded out of an individual hole.
This allows the manufacturer to make a variety of cross sections or
shapes. This may lead to higher cost due to lower output rates;
however, it makes a yarn that is pound per pound superior to a slit
film yarn. It also makes a yarn that can be made to very closely copy
the look and feel of real grass. The best example that people can
relate to is a beam made of steel. A flat piece of steel does not have
much rigidity or stiffness when compared to steel configured as an I
beam. In our case the flat piece of steel would be a slit film yarn,
and a monofilament could be extruded with a spine similar to the
concept of an I beam. In summary, as a purchaser of artificial grass
consumers should be aware that using a monofilament yarn may be
slightly higher in initial cost. However, the resulting product can
use different monofilament cross sections to maximize the properties
that are required for their end use.

[Posted by grassestimate.com Bay Area artificial grass installer.]

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