Shoes & Upper Material Flex Tester

Product Introduction

The upper buckling tester is used to determine the tendency of a material to crack or otherwise fail at buckling creases, but can also be used to assess whether the leather is likely to produce salt. In particular, the test simulates the condition of the upper part of the footwear during walking. The test can be performed at room temperature with wet or dry samples. This method applies to all flexible materials, especially those used to make outfits and linings for footwear uppers, such as leather, coated fabrics, and textiles.

Working Principle

A square sample of material is folded on two inverted V-clamps. The fixtures are able to move relative to each other, allowing the sample to bend to create a downward crease that is surrounded by four upward creases as they get closer. During the test, the fixture oscillates at a constant speed to bend the sample repeatedly. After a predetermined number of cycles, stop the test and visually inspect the sample for signs of damage or salting.

Standards

Technical Data