This machine determines the fastness of the finish of a leather upper, leather lining, synthetic upper or lining and fibreboard. Rubbing can be carried out in dry or wet conditions. The latter can be water, solvents in shoe polish, or toe puff (box toe) solvents applied to the back of the material.
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 or the finish and to assess the amount of colour transfer from the sample to the rubbing pad.
This test is designed for determining the degree of colour which may be transferred from the surface of coloured materials to other surfaces by rubbing. The machine takes its name from the term 'crocking' meaning the transfer of colouring matter or other substances from the test sample to a wet or dry cloth rubbed against it.
SATRA has now introduced a new tensile testing machine (STM 566) rated up to 5,000N.Tensile testing is used in many industries for research, quality and process control. Tension, compression, peel, shear, tear, puncture and adhesion can all be tested.
This is used for testing the strength of adhesion of the finish to the leather or synthetic material. It consists of a hook attached to one jaw and a sample holder to the other.
Supplied as jaw set (top and bottom).
STD 112P1 1cm wide PVC Strips
STD 112P2 2cm wide PVC Strips