Nonwovens Glossary - INDA

Throughput
Amount of output or production per unit time.
Ticking
Strong fabric used as a covering for a mattress or pillow and in upholstery.
Titanium dioxide
A natural chemical compound (TiO2) often used to pigment polymers in the spinning process
to add whiteness.
Tolerance
The permitted variation in the measurement of specified property, such as weight, strength,
color, etc., that is being observed in a test method.
Top sheet
The cover stock that is the first layer inside the diaper that touches the body. The material is
permeable allowing body fluids to pass through to the diaper’s core leaving a dry surface in
contact with the wearer’s skin.
Torsional rigidity
The resistance of a fiber to twisting, defined as the couple required to twist a fiber of unit
length to unit angular deflection or the torque required to cause unit twist.
Toughness
The energy-absorbing capacity of a fiber, defined as the specific work of rupture and obtained
by measuring the area under the stress-strain curve.
Tow
A bundle of continuous filaments – the form of most man-made filaments before being cut
into staple.
Transition temperature
A temperature at which some radical change, usually a phase change, in the appearance or
structure of a substance occurs.
Tricomponent fiber
A fiber that is made from three polymers that are physically or chemically different.
Tufted carpeting
A pile carpeting produced by a tufted process. In the process, fibers are carried by a series of
needles and thrust through the carpet backing to be held in place by the backing as the
needles are withdrawn. Nonwoven materials are used as primary and secondary carpet
backing for some applications, often in automotive and modular carpeting.
Nonwovens Glossary
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