Upper and Vamp Material Cold Flexing Tester GT-KC04B
Product Introduction
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Application:
This Upper and Vamp Material Cold Flexing Tester is used to determine the propensity for materials to crack or otherwise
fail at flexing creases, but can also be used to assess whether
leathers are likely to produce salt spue. In particular the test
simulates conditions in the vamp part of footwear during walking. The
test can be conducted with either wet or dry specimens at room
temperature or with dry specimens at sub zero temperatures. The method
is applicable to all flexible materials and in particular those used to
manufacture outers and linings of footwear uppers such as leathers,
coated fabrics and textiles
Standards:
ISO 5423 section 5.2, EN ISO 20344 Section 6.5.2,AS/NZS 2210.2 Section 6.5.2, GB/T 20991 Section 6.5.2, GB20265 section 4.1,EN ISO 22288, SATRA TM25
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Dimensions
Feature
Its principle: A square specimen of the material is folded over two inverted V-shaped clamps. The
clamps are able to move relative to one another so that as they become closer the specimen is
flexed to produce one downward crease surrounded by four upward creases. During the test the
clamps oscillate at a constant speed so that the specimen is repeatedly flexed. After a
predetermined number of cycles the test is stopped and the specimen is visually examined for
signs of damage or salt spue.
Key Specifications
Application Industry
All kinds of leather materials can be tested on theUpper and Vamp Material Cold Flexing Tester.
