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  • Rights: The University of Waikato Te Whare Wānanga o Waikato Published 8 February 2018 Size: 57 KB Referencing Hub media

    Within the twisted molecular chains are protein chains that are coiled in a helical shape much like a spring. This structure is stiffened by hydrogen bonds and disulphide bonds within the protein chain. They link each coil of the helix, helping to prevent it stretching. The helical coil – the smallest part of the fibre – gives wool its flexibility, elasticity and resilience, which helps wool fabric keep its shape and remain wrinkle-free in use.

    Image: University of Waikato

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