Test method for leather wear resistance performance
Martin Dell's wear resistance method is often used in the wear resistance test of textiles and evaluation of hair and kicking. my country's national standard IOS3903.16-2008 Shoes The abrasion resistance of the category, lining, and internal cushion test method stipulates the test method of testing the upper of the Martin Delle method, and it is also suitable for testing the wear resistance of car leather wear resistance.
The Martin Del wear -resistant method was used to rub the fabric friction samples with standards under constant pressure. The relative movement of the Li Sharu graphic between the friction fabric and the sample produces all directions. After completing the specified number of frictions, the degree of damage to the sample is evaluated.
When operating, a polyurethane foam plastic with a thickness of (3 ± 1) mm and density (30 ± 3) kg/m3 on the back of the sample on the back of the sample The sample is fixed on the grinding head, then placed the table felt on the grinding table, then placed the friction fabric on the table of the table, and the heavy object that produced (2 ± 0.2) KPA pressure was placed on the friction fabric, and then friction The fabric is fixed. Finally, the grinding head is installed on the wear -resistant test machine, and the pressure of (12 ± 0.2) KPA is applied to the grinding head, the instrument is activated, and the number of rotation sets set by the counter is tested. After the test, remove the sample, check and record the wear of the sample, and use a gray sample card according to the IOS 250-2008 Textile Color Test Assessment to the Gray Sample Card to evaluate the color changes in the test area.
Stroll wear-resistant method
According to ASTM D 3886-1999 Standard TestmetHod for Abrasion Resistance Fabrics
(Inflated Diaphragm Appratus), The test principle of Stroll wear -resistant method is to place the test sample on the inflatable rubber film with constant air pressure, and use sandpaper with specified surface characteristics to rub the sample. After the specified number of frictions, the degree of wear of the sample is evaluated by the appearance.
Operation steps: Place the sample on the rubber film in a flat state, place the sandpaper on the abrasive board, and make the contact head of the sandpaper connected to Essence Then apply 28 kPa to the below the membrane, apply 454 g pressure above the abrasive board, and ensure that the control of the air pressure and the contact between the inflatable samples and the loaded sandpaper are in a stable and balanced state. Start the instrument and test it according to the number of rotation set by the counter. After the test, remove the sample, check and record the wear of the sample, and use a gray sample card according to the IOS 250-2008 Textile Color Plaza Test Assessment Discount Card evaluation test areaColor changes in the domain.
Taber wear-resistant method
American standard ASTM D 3884-2009 Standard Test Method for Abrasion Resistance of Textile Fabrics (Taber Appratus) on Taber. Regulations. The test principle of the Taber wear resistance is: the test sample is placed on a rotary platform, and the sample is worn with the two rolling friction wheels above it at a certain load with the sample. One friction wheel, the other friction wheels facing the inner friction sample to form a circular wear trace. After the specified number of frictions, the degree of wear of the sample is evaluated by the appearance.
Operation process: Fix the sample on the front to the rotating platform, and install the selected sand wheel on the support rod. After selecting the right load, put the support rod down and contact the surface of the sample to connect and open the vacuum device. Start the instrument and test it according to the number of rotation set by the counter. After the test, remove the sample, check and record the wear of the sample, and use a gray sample card according to IOS 250-2008 Textile color fastness test to evaluate the gray sample card.