Basic HTML Version
The Textile Magazine
JUly 2012
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101
product web across the entire product width.
Applications range from all types of surface
structures, felts, dense paper and airbag fabric
to extremely open nonwovens and paper
sieves.
In the textile and clothing sector, air perme-
ability is important for the exchange of air
between the inner layers of clothing and the
environment. This will substantially influence
the wearing comfort of clothes. Air permeabil-
ity is also important for drying after washing.
In the technical sector, it plays a role in air and
gas filters, or with air bags in the automobile
industry.
Moisture measuring on
microwave base
Aqualot AMF permits the exact determina-
tion of the total material moisture. The meas-
urement is contactless and non-destructive.
The ascertained moisture value can be sup-
plied to a controller as actual value to regulate
the web speed, dryer output or squeezing
pressure.
The Aqualot AMF
sends microwaves
through the moist
product web. The
water in the product
causes damping and
phase shifting of the
microwaves. The mate-
rial moisture can be
determined by compar-
ing the output and input
signals. The applica-
tions of the sensor in-
clude, amongst others,
moisture measurement
of textiles, nonwovens,
paper and film or the
application measure-
ment of water-soluble
coatings.
w
ITMA Asia + CITME 2012