Carpet Deodorizer-Disinfectants-Presentation

Carpet Deodorizer-Disinfectants-Presentation - Slow Release...

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Slow Release Fragrance and Disinfectant for Carpets ChE 4273 Capstone Dr. Bagajewicz Justin Woody Carrie Street
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Overview b Background b Design b Utilities b Production Process b Economics
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The Case for a Clean Carpet b Dust Mites b Mold b Mildew b Bacteria
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b Microscopic arachnids b Dust mite’s dead remains and fecal matter are invisible cause respiratory problems b Remains are suspended in the air for extended periods of time Dust Mites
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b Feed on dead human skin cells b > 55% humidity b 72°-79° F b < 50% humidity, most die within 7- 10 days Dust Mites: Ideal Environment
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•Moist, warm, poorly ventilated places •Quickly mature •Produce floating spores •Cause discomfort and allergies
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Bacteria •Gram negative •Anaerobic •Require wet environment •Live in latex backing of carpet •Produce butyric acid – foul smell
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Wet Cleaning Problems •Cause mildew growth •Up to 20% water absorption •Analogous to shampooing hair without rinsing •Soapy, sticky residue
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Current Products b b Borid b Capture Clean www.churchdwight.com www.pestproducts.com www.captureclean.com
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Challenge Freshen and Disinfect – With Powders s Slow release fragrance s Small particles (biodegradable) s Disinfectant
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Potential Solution Problem boric acid, baking soda Mildew neutralize butyric acid odor with baking soda Bacteria boric acid , sodium propinoate Mold boric acid , tannic acid Dust Mites
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Natural Fragrances Rose Geraniol Lemon Citral Lily Linalool
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Design b Baking Soda b Boric acid b Linalool in PLGA for extended duration
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Sodium bicarbonate b Absorbs moisture b Non-toxic
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Boric Acid b Kill dust mites s crystal coats food source b Neutralize allergens b Inhibit mold, mildew, bacteria, and fungi growth b Kill cockroaches, beetles, and ants by chemical burns
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•Poly(lactic-co- glycolic acid) •Biodegradable •Degrades by hydrolysis of ester linkages PLGA
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Utility Function Method U= U i w i U = utility w = importance weight i = characteristic
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