Trial Purpose:
To evaluate the effectiveness of Cleanyst laundry detergent against Seventh Generation Laundry Detergent in the removal of various soils from cotton, nylon and polyester.
Date Run:
12/11/2019Experiment Procedure:
A total of twelve 4”x5” swatches of fabric per cleaner, were contaminated with motor oil, ink, dirt, and mustard. The fabrics used were a white cotton, a purple nylon, and an orange polyester. The soiled coupons were then air dried for 24 hours. The fabrics were then washed at 88˚ F for 12 minutes separated by cleaner, with a five-minute spin cycle and a nine-minute rinse cycle. Before being taken out of the washer and allowed to dry for 24 hours. A colorimeter was used to take initial, contaminated, and clean measurement values during the experiment.
Equation used: SRI = 100 -((Lc-Lw)2 + (Ac - Aw)2 + (Bc - Bw)2)1/2
SRI = Stain Removal Index (0= No removal and 100 =Complete stain removal)
L=reflectance
A= redness/greenness
B= yellow/blueness
C= unstained fabric, washed in the treatment conditions
W= stained fabric, washed in the treatment conditions
Trial Results:
Table 1: Results from Cleaner 1
| Cleaner | Fabric | Soil | SRI | Average |
| 1 | White Cotton | Oil | 18.88 | 77.36 |
| Ink | 91.72 | |||
| Dirt | 99.32 | |||
| Mustard | 99.53 | |||
| Purple Nylon | Oil | 21.41 | 75.64 | |
| Ink | 85.27 | |||
| Dirt | 97.46 | |||
| Mustard | 98.40 | |||
| Orange Polyester | Oil | 97.36 | 79.56 | |
| Ink | 90.86 | |||
| Dirt | 98.88 | |||
| Mustard | 31.13 |
Table 2: Results from Cleaner 2
| Cleaner | Fabric | Soil | SRI | Average |
| 2 | White Cotton | Oil | 87.08 | 94.40 |
| Ink | 92.44 | |||
| Dirt | 99.02 | |||
| Mustard | 99.07 | |||
| Purple Nylon | Oil | 97.71 | 95.54 | |
| Ink | 87.21 | |||
| Dirt | 98.18 | |||
| Mustard | 99.07 | |||
| Orange Polyester | Oil | 97.46 | 95.87 | |
| Ink | 91.69 | |||
| Dirt | 97.24 | |||
| Mustard | 97.12 |
Table 3: Cleaner 1 L, A, and B values. % Difference
| Initial | Clean | % Difference | ||||||||
| L | A | B | L | A | B | L | A | B | ||
| Cotton | Motor Oil | 67.87 | 25.03 | 42.12 | 49.11 | 2.15 | -33.35 | 28% | 91% | 179% |
| Dirt | 53.32 | -0.22 | -30.08 | 52.78 | -0.14 | -29.72 | 1% | -39% | -1% | |
| Food Stain | 53.18 | -0.30 | -29.86 | 53.39 | -0.46 | -29.78 | 0% | -53% | 0% | |
| Ink | 53.18 | -0.37 | -29.78 | 46.28 | -0.63 | -27.04 | 13% | -71% | -9% | |
| Nylon | Motor Oil | 53.18 | -0.22 | -29.99 | 64.49 | 28.24 | 42.38 | 21% | -13132% | -241% |
| Dirt | 66.07 | 25.63 | 42.40 | 65.32 | 27.10 | 41.91 | 1% | 6% | 1% | |
| Food Stain | 67.74 | 26.92 | 42.65 | 66.98 | 27.96 | 43.10 | 1% | 4% | 1% | |
| Ink | 68.24 | 27.70 | 42.38 | 56.95 | 23.09 | 34.19 | 17% | 17% | 19% | |
| Polyester | Motor Oil | 30.00 | 16.83 | -35.10 | 27.86 | 17.99 | -34.09 | 7% | 7% | -3% |
| Dirt | 30.05 | 16.62 | -34.92 | 29.08 | 16.26 | -34.57 | 3% | 2% | -1% | |
| Food Stain | 29.98 | 16.67 | 34.80 | 29.28 | 15.92 | -34.06 | 2% | 5% | 198% | |
| Ink | 30.13 | 16.60 | -34.99 | 27.57 | 11.93 | -27.57 | 9% | 28% | -21% | |
Table 4: Cleaner 2 L, A, and B values. % Difference
| Initial | Clean | % Difference | ||||||||
| L | A | B | L | A | B | L | A | B | ||
| Cotton | Motor Oil | 39.85 | -0.27 | -29.67 | 49.66 | 1.47 | -32.68 | 25% | -639% | -10% |
| Dirt | 53.54 | -0.73 | -29.47 | 52.77 | -0.51 | -29.04 | 1% | -31% | -1% | |
| Food Stain | 53.70 | -0.08 | -29.69 | 53.40 | -0.49 | -28.97 | 1% | -513% | -2% | |
| Ink | 47.34 | -0.50 | -29.10 | 41.16 | -0.64 | -24.77 | 13% | -26% | -15% | |
| Nylon | Motor Oil | 66.49 | 26.82 | 42.19 | 65.64 | 27.94 | 43.13 | 1% | 4% | 2% |
| Dirt | 67.29 | 27.11 | 42.72 | 66.30 | 27.15 | 42.17 | 1% | 0% | 1% | |
| Food Stain | 66.84 | 27.39 | 43.00 | 67.22 | 27.88 | 42.77 | 1% | 2% | 1% | |
| Ink | 67.11 | 26.93 | 42.73 | 57.6 | 23.29 | 35.04 | 14% | 14% | 18% | |
| Polyester | Motor Oil | 29.73 | 16.95 | -34.71 | 28.55 | 15.54 | -32.98 | 4% | 8% | -5% |
| Dirt | 30.02 | 16.75 | -34.97 | 27.75 | 17.87 | -33.93 | 8% | 7% | -3% | |
| Food Stain | 29.80 | 14.82 | -34.76 | 29.17 | 15.89 | -33.96 | 2% | 7% | -2% | |
| Ink | 30.08 | 17.03 | -35.33 | 28.20 | 12.60 | -28.57 | 6% | 26% | -19% | |
Table 5: Cleaner 1 L, A, and B values. % Difference Average
| Cleaner | Fabric | Soil | L | A | B |
| 1 | White Cotton | Oil | 28% | 91% | 179% |
| Ink | 1% | -39% | -1% | ||
| Dirt | 0% | -53% | 0% | ||
| Mustard | 13% | -71% | -9% | ||
| Average | 11% | -18% | 42% | ||
| Purple Nylon | Oil | 21% | -13132% | -241% | |
| Ink | 1% | 6% | 1% | ||
| Dirt | 1% | 4% | 1% | ||
| Mustard | 17% | 17% | 19% | ||
| Average | 10% | -3276% | -55% | ||
| Orange Polyester | Oil | 7% | 7% | -3% | |
| Ink | 3% | 2% | -1% | ||
| Dirt | 2% | 5% | 198% | ||
| Mustard | 9% | 28% | -21% | ||
| Average | 5% | 11% | 43% |
Table 6: Cleaner 2 L, A, and B values. % Difference Average
| Cleaner | Fabric | Soil | L | A | B |
| 1 | White Cotton | Oil | 25% | -639% | -10% |
| Ink | 1% | -31% | -1% | ||
| Dirt | 1% | -513% | -2% | ||
| Mustard | 13% | -26% | -15% | ||
| Average | 10% | -302% | -7% | ||
| Purple Nylon | Oil | 1% | 4% | 2% | |
| Ink | 1% | 0% | 1% | ||
| Dirt | 1% | 2% | 1% | ||
| Mustard | 14% | 14% | 18% | ||
| Average | 4% | 5% | 6% | ||
| Orange Polyester | Oil | 4% | 8% | -5% | |
| Ink | 8% | 7% | -3% | ||
| Dirt | 2% | 7% | -2% | ||
| Mustard | 6% | 26% | -19% | ||
| Average | 5% | 12% | -7% |
Success Rating:
A cleanliness study, addressing only various analytical techniques.Conclusion:
Cleanyst Laundry Detergent was more effective than the comparative product for cleaning and removing stains on white cotton, purple nylon, and orange polyester fabric.
