The Gelbo Flex Tester with Particle Counter is to measure the amount of loose fibres (lint) shed from non-woven materials in a 30 second time period of flexing. It is important that non-woven textile materials must have a low tendency to lint.
Linear Thermal Shrinkage or Free Shrink is defined as the irreversible and rapid reduction in linear dimension, in a specified direction, occurring in film exposed to elevated temperatures.
Gelbo Flex Tester is used to determine whether certain laminations of plastic withstand repetitive strain. By attaching sample pieces of laminated plastic to the two circular clamping disks, via hose clamps, the specimen is twisted and turned to the specific movements. This process will show a visual result of pinholding and delamination.
