The hand panel evaluation test seeks to obtain
the subjective response of human subjects as they touch/ rub/ squeeze
swatches of the test materials. A response form is developed to
obtain the evaluator ratings and is customized according to the
information needed regarding the sensory tactile hand qualities
of the fabric against the skin.

The customized response form contains bi-polar
rating scales for specifically selected adjective descriptor terms
related to the hand of fabric.
The following is a list of descriptor
terms that have been used in previous studies.
warm - cool
damp - dry
hard - soft
stiff - flexible
rough - smooth
clean - fuzzy
thick - thin
heavy - light
loose - dense
nonstretchy - very stretchy
The response form is also designed to seek a comparison
between fabrics in the sample set, which fabric is most preferred,
and which test item feels most like a certain descriptor term provided.
The
process used to evaluate test samples can be described as follows:
· Evaluations are to be
done in the environmental chamber at temperature/ relative humidity
conditions agreed upon and appropriate for the end use.
· Assembled swatch sets are conditioned for
a minimum of two hours in the test environment prior to the test.
· Test sessions of up to 10 evaluators per
session will be scheduled according to response from the evaluator
sign ups.
· Upon arrival each evaluator washes and
dries hands according to the required hand washing procedure.
· Evaluator enters the environmental chamber
for a 30 minute conditioning and acclimatization period. Hands should
be used minimally during the conditioning period.
· Each evaluator receives a swatch set with
rating sheets for each sample. Samples are handled according to the
specified handling procedure (illustrated pictorially in the environmental
chamber). The test samples are evaluated, one at a time, on the selected
bipolar terms and for any other items included on the response form.
The ratings are recorded on the evaluation form.
· Ratings are averaged and analyzed.
Typically 30 - 40 participants are used in a study
depending on whether the study is for males or females or a combination
of both. Evaluators are obtained from the North Carolina State
University, T-PACC subject pool which includes persons, primarily
students, who through a screening process are determined to be
healthy nonsmoking individuals between 18 and 35 years of age.
Considered first are experienced evaluators who have participated
in previous studies. All evaluators receive an initial orientation
regarding the requirements of being a hand evaluation participant.
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