This testing instrument is generally used to test the sweat resistance of textiles, sea water, color fastness to saliva, distilled water, etc, operating rules and when the sample is affixed lining fabric together, after solution treatment, try to remove fluid and clip in the middle of the sample board, and then for further processing, specific operation method is more strict.
Operation method of perspiration color fastness instrument:
1, as printing and dyeing class testing instrument, it is according to the standard configuration sweat, PH value, solution PH range should be 4.3 + / - 0.2, from the sample material for 6 x6cm specimens, and take more with the size of the fiber cloth, with the balance the weight of the samples and more fiber cloth.
2. Place each test piece and a piece of multi-fiber cloth in a plate with a diameter of 9cm and a depth of 2cm. Soak the test film and multi-fiber cloth for 30 minutes on the plate. The specimen was repeatedly crushed and weighed until it was 2.25 + 0.05 times the weight of the dry condition.
3. Place the test pieces and multi-fiber cloth, and the new materials shall be placed on the anti-sweat shelf, and the total number of the new pieces will be 21. After the last layer, the pressure plate will be placed and the weight will be weighed 10.0 LBS.
4. Lock the screws and place them in the oven. Set the oven to maintain the temperature of 38 plus or minus 1. C is 6 hours, take out the tester, separate each test piece and multi-fiber cloth.
As printing and dyeing class testing instruments, testing principle of the color fastness to perspiration tester is a composite sample after artificial sweat soaked, after the color fastness to perspiration tester is pressurized treatment, drying, to evaluate the sample color and paste lining fabric with color, color fastness rating adopts Datacolor colorimeter.
