VESLIC RUB PROOFNESS TESTER
This machine is designed to carry out a rub fastness test on the surface of leather to determine the amount of marring of the leather surface finish and to assess the amount of color transfer from the sample to the rubbing pad. The test can be carried out under dry or wet conditions by using a dry rubbing pad or a pre-wetting the rubbing pad in distilled water or a sweat solution prior to testing.
The abrasion effect of soling materials on upper materials can also be tested on this machine. Using a small profiled rubber pad in place of the felt pad, samples can be tested for this effect. Abrasion of the upper by soling material can be caused in normal wear particularly when wearers cross their legs and the sole of one foot rests on the upper of the other foot.
Operation of the machine is simple. The sample is placed on the test surface and clamped using clamps provided. Pretension can be affected by adjustment of the knob in conjunction with the percentage scale on the testing table of the machine. A cycle counter is fitted to the machine causing the machine to stop when the pre-determined amount is reached. The square-rubbing element is inserted on the machined holder on the end of the rubbing head, which is lowered to the surface of the test sample.
DIN EN ISO 11640
IS: 15298 (part-2): Clause No. 188.8.131.52