Fluorinated treatment for soil resistance
A technology of anti-fouling agent and compound, which is applied in the field of anti-fouling fluorinated treatment, and can solve problems such as dirty carpets
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test approach 1
[0130] Test method 1. Accelerated Pollution Test
[0131] A barrel grinder (on rollers) is used to tumble the faux dirt onto the carpet. Artificial soil was prepared as described in AATCC Test Method 123-2000, Section 8. To prepare dirt-coated granules:
[0132] Artificial dirt 3g, 1 liter of clean nylon resin pellets (SURLYN ionomer resin pellets), 1 / 8-3 / 16 inches (0.32-0.48 cm) in diameter, placed in a clean, empty can. SURLYN is an ethylene / methacrylic acid copolymer available from E.I. du Pont de Nemours and Co., Wilmington DE. Close the lid of the jar and seal with duct tape, and roll the jar on a roller for 5 minutes. The dirt-coated particles were removed from the tank.
[0133] Prepare carpet sample B for insertion into the drum:
[0134] The size of the total sample used in this test is 8 x 25 inches (20.3 x 63.5 cm). Simultaneously test a test item and a control item. The carpet piles of all samples were placed in the same direction. The short side of each c...
test approach 2
[0138] Test method 2. Stain performance color measurement
[0139]Color measurements for individual carpets were made on the carpet after the accelerated stain test. To measure the color of each control and test sample carpet, the samples were soiled and the color of the soiled carpet was measured. Delta E is the color difference between the stained sample and the unstained sample, expressed as a positive number. Use the Minolta colorimeter CR-310 to measure the color difference of each item. Color readings were taken in five different areas of the carpet sample and the average Delta E recorded. The control carpet in each test item was the same color and served as the test item. A control carpet was treated with a fluorochemical dispersant with no added surfactant.
[0140] Delta Delta E is calculated by subtracting the Delta E of the control carpet from the Delta E of the test item. A larger negative value for Delta Delta E means that the test carpet has better performa...
test approach 3
[0141] Test method 3. Ground Traffic Pollution Test Method
[0142] The carpet was installed in a busy hallway of a school or office building and walked by people in a controlled test area. Corridors are isolated from exits, have sturdy exit mats, and have carpeted areas prior to contamination of the test area. A unit of "walk" is a person crossing in either direction and is recorded with an automatic traffic counter. DeltaDelta E measurements were performed as in Test Method 2.
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