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What is TPP-free TPU material
Dec 13 , 2024
TPP (Triphenyl Phosphate) is a commonly used phosphoric ester additive known for its flame retardant and antioxidant properties. However, in some conditions, TPP may release phosphoric ester smoke and toxic gases, posing potential hazards to the environment and human health. In the applications that involving frequent contact with the human body, such as medical devices and baby products, the use ...
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TPU vs. TPEE Shoe Shanks: An Honest Comparison — and Why TPU Remains the Smart Choice for Most Footwear Brands
Sep 20 , 2026
If you've ever compared shank or support-plate options with a footwear material supplier, TPU and TPEE almost always come up as a pair. They get compared constantly — and for good reason: they're close cousins in the "moldable elastomer" family, and both show up across the same product categories. But they behave differently enough under load that picking the wrong one — or the wrong grade within ...
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How to Choose the Right Shank Material for a Shoe's Arch Support
Oct 19 , 2026
The shank is the stiff insert between the insole and outsole, running from the heel toward the ball of the foot. Its job is to support the arch and, in many designs, control torsion in the midfoot. Get the material or the geometry wrong, and a shoe feels floppy by lunchtime or fights the foot's natural motion. There is no single best material. The right choice depends on load, available thickness,...
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