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How does fabric choice affect compatibility with laser cleaning conservation methods?
The compatibility of fabrics with laser cleaning in conservation depends on material composition, weave density, and colorfastness. Natural fibers like cotton and linen generally respond well to controlled laser settings, while synthetic blends may melt or discolor under similar conditions. Delicate historic textiles require wavelength adjustments to avoid fiber damage, with darker pigments absorbing more energy and increasing burn risks. Conservators must conduct pre-treatment tests on inconspicuous areas, as fabric thickness alters beam penetration depth. Optimal results occur when laser parameters (pulse duration, fluence) match the textile's thermal tolerance – a balance between contaminant removal and structural preservation. Advanced spectroscopy helps monitor real-time effects, making laser cleaning viable for selective applications where traditional methods would compromise fragile fabrics.
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