Multilayer insole - moulded in one stage using female die with low heat conductivity

摘要

Covered insole has a vulcanised rubber footbed as core, a cover which has a degradation temp equal to or lower than the vulcanisation temp of the rubber mixt., over the upper and side edges of the footbed, and opt. a resilient inter. layer in a single stage using a female die produced from a material with such a heat conductivity that the temp of the die during moulding is not higher than the degradation temp. of the cover material. Cheaper and less time consuming than bonding of the components with adhesive.