Geographical, climatic factors should be considered. In some areas of the
country, seasonal changes can adversely affect the conditions in the storage or
display area proposed. Because of their hygroscopic nature, textiles can be
damaged by spikes of high humidity. Monitor the area chosen periodically to
check the temperature and humidity levels. Attics, basements, closets against
exterior walls are places susceptible to changes in temperature and hence to
changes in relative humidity. Such spaces are not recommended for textile
storage.
Some fungi and some bacteria produce colors as they grown. These may attach
tenaciously to the fibers. Xerophilic fungi produce rust-colored spots. Often
seen on the pages of old books or antique linens, these freckle like spots
called ‘foxing’ are the result of a melanin type exudate, not rust. Oxidative
bleaching with hydrogen peroxide may reduce the color but will further weaken
the cloth or paper.
The portion of the textile that is obscured by mildew is weaker than the
unaffected areas. Chemical treatment ("wet-side spotting") may be deleterious to
the fabric, dyestuff, finish. If the growth has damaged enough fiber surface,
removing the growth will reveal a perceptively damaged--and perhaps discolored
area. Radical treatment may only abrade this surface more; washing and agitation
may increase the likelihood of rips, tears, holes.
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