Effects of fiber electrostatic cling and moisture regain on Timothy grass pollen attraction Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/4f16c630t

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  • People will spend a large amount of their lifetime indoors where the air is filled with both indoor and outdoor allergens. Exposure to allergens can have a range of effects on the health of building occupants. Textiles make up a vast majority of the surfaces, such as draperies, sofas, pillows, and carpeting that are found in an indoor space. Many of the textile surfaces are often covered by allergens due to their tendency to attract allergens which can exacerbate the symptoms of people suffering from allergies. The purposes of this study were to determine if there is a relationship between fabric parameters such as electrostatic charge and moisture regain on the attraction of timothy grass pollen and to determine if various fabric treatments affect their allergen attraction. Twelve fabrics were exposed to differing amounts of Timothy grass pollen and tested for electrostatic cling, and moisture regain. For the pollen exposure procedure, fabric samples were exposed to varying amounts of pollen by repeated turning of a glass cylinder. Fabric electrostatic cling was measured by following AATCC (115, 2005) Fabric to Metal cling test. Moisture regain for fabric samples was measured by following ASTM D 2495-07 (2009) and D 1576-90 (2008). Acidic acid (vinegar), basic (ammonia), and fabric softener, were used to determine if these treatments caused any changes of pollen counts on the fabric samples tested. The results from this study showed that there was no consistent linear relationship between electrostatic charge or moisture regain with pollen count on any of the fabric samples tested. Across all trials and treatments, the untreated group had the highest average pollen count followed by group that was treated with fabric softener, then basic (ammonia), and finally acidic acid (vinegar).When looking at individual fiber, wool fabric samples had the lowest pollen count across the fabric samples while nylon fabric samples had the highest pollen counts in all the treatments with the exception of basic (ammonia) treated polyester fabric samples. As for the treatments, the acidic acid (vinegar) treatment on all fabric samples resulted in the least amount of pollen attached to the fabric samples.
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