What is the AATCC130 easy stain removal test?
Purpose and Scope
1.1 This test method is used to test the ability of fabrics to remove oil stains during laundering.
1.2 This test method is first used to evaluate the oil stain resistance of fabrics after finishing in actual use.
1.3 The use of this test does not exclude the use of garment testing principles.
2.1 The stain is used to test the sample. Use a specified weight to press some stain onto the fabric. The stained fabric is washed and ironed in a prescribed manner. The remaining stain is rated according to a stain removal rating card ranging from 5 to 1.
Equipment and Materials
3.1 Blotting paper
3.2 Corn oil
3.3 Cellophane or other equivalent items
3.4 Timer/Stopwatch
3.5 weights, 5.0 ± 0.1 lb (stainless steel or better)
3.6 Medical drip set
3.7 Fully automatic washing machine
3.8 Fully automatic clothes dryer
3.9 Commercial granular cleaning agent or household cleaning agent specified by AATCC1993 standard (Tide detergent, 9.8% P)
3.10 Wadding (36 x 36 inch), seam-edge bleached fabric piece (wadding type 1) or 50/50 polyester/cotton bleached or silk-finished poplin (wadding type 2), or 50/50 poly/cotton Cotton bleached silk finished general fabric (filler type 3)
3.11 Rating area (rated lighting area and area that can be tested according to AATCC 124)
3.12 Workbench with non-glaring black surface (24 x 36 inch, height 35 ± 1 inch)
3.13 Stain removal rating card or 3M stain removal color card
3.14 Thermometer
3.15 Balance test sample cloth for weighing
4.1 Use two test sample cloths (15.0 ± 0.4 x 15.0 ± 0.4 inch) for each measurement. Test sample cloth at least 4 hours at 21 ± 1 ℃ and 65 ± 2% humidity.
Contamination procedures
5.1 Place the unstained sample cloth flatly on the AATCC white blotting paper with the surface level.
5.2 Use a medical dropper to drop 5 drops (approximately 0.2 ml) of corn oil approximately in the center of the test cloth sample.
5.3 Place a piece of (3.0 x 3.0 inch) cellophane paper on the stained area
5.4 Place the weight on the cellophane on the stained area
5.5 After the weight is placed for 60 ± 5 s, remove the weight and discard the cellophane piece
5.6 The test specimens are not allowed to contact each other to transfer stains. Rinse for 20 ± 5 minutes after staining.
Cleaning procedures
6.1 Discharge water to the high water level according to the temperature selected in Table 1, and check with a thermometer.
6.2 Add 100 ± 1 g of cleaning agent into the washing machine.
6.3 Start stirring the water, add the liner and test sample cloth to make the total weight (4.00 ± 0.15 lb). The maximum number of sample cloths for each washing machine is 30 pieces for each test.
6.4 Set the washing machine to Normal wash and complete the test after running for 12 minutes (both washing and rinsing are under normal agitation).
6.5 After the post-rotation is completed, take out all the filling materials and the test sample cloth and put them into the dryer.
6.6 Set the dryer to Normal (Cotton Sturdy) and set for 45 minutes or until dry. Some dryers have an automatic cooling process for 5 minutes after drying in the Normal program. For dryers without this feature, change the setting to air drying for 5 minutes after setting it for 45 ± 5 minutes. The maximum temperature at the air outlet of the clothes dryer can reach 65 ± 5 ℃.
6.7 Take out the sample cloth immediately after the dryer rotates and lay it flat to prevent the formation of creases or wrinkles, which will affect the oil stain resistance rating. Evaluate within 4 hours after drying.
Assessment
7.1 Place the rating card on the lining board, with the center standard 114 ± 3 cm from the ground.
7.2 Fix one side of the test sample cloth on the lining board, and place it flatly on the table with the center facing the black top. The sample cloth can be rotated and moved to facilitate viewing from the lower level.
7.3 The viewing distance should be 30 ± 1 inch) from the black lining, and the eyes should be (62 ± 6 inch) from the ground. The evaluator should stand directly in front of the sample cloth. Changing the viewing angle horizontally or vertically will cause effects.
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