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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 box4 Background box4 Design box4 Utilities box4 Production Process box4 Economics
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The Case for a Clean Carpet box4 Dust Mites box4 Mold box4 Mildew box4 Bacteria
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boxshadowdwn Microscopic arachnids boxshadowdwn Dust mite’s dead remains and fecal matter are invisible cause respiratory problems boxshadowdwn Remains are suspended in the air for extended periods of time Dust Mites
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box4 Feed on dead human skin cells box4 > 55% humidity box4 72°-79° F box4 < 50% humidity, most die within 7- 10 days Dust Mites: Ideal Environment
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Mold & Mildew •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 box4 Arm&Hammer box4 Borid box4 Capture Clean www.churchdwight.com www.pestproducts.com www.captureclean.com
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Challenge Freshen and Disinfect – With Powders square6 Slow release fragrance square6 Small particles (biodegradable) square6 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 box4 Baking Soda box4 Boric acid box4 Linalool in PLGA for extended duration
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Sodium bicarbonate box4 Absorbs moisture box4 Non-toxic
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Boric Acid box4 Kill dust mites square6 crystal coats food source box4 Neutralize allergens box4 Inhibit mold, mildew, bacteria, and fungi growth box4 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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Utility Function Method weights = 1 Poll Consumers Weights Characteristics
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0.15 Odor Elimination 0.09 Toxicity 0.14 Scent Type Weight Characteristic 0.19 Fragrance Duration 0.22 Scent Intensity 0.21 Disinfectant Effectiveness
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Utility Function Method Consumer Tests measure preference Relate characteristics to physical property
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