Principles
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1
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Fabric wear is constant VOLUME
loss not a constant caliper loss process.
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2
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Every fabric revolution,
roughly the same volume of yarn is removed, not a constant thickness
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3
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The color slices are all equal
in volume and diminish in thickness as the wear facets get larger.
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Slice Volume = Facet Area x Thickness
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4
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The chart below shows that the
wear volume vs caliper loss curve is not a linear relationship
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5
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Fabric is 100% worn when
either:
a) MD yarn has lost 50% of its thickness
b) CD yarn has lost 90% of its thickness
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a) MD Yarn is 50% worn
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b) CD Yarn is 90% worn
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MD Yarn: 50% worn & CD Yarn: 90% worn
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