Retraction test

For this type of calibration 7 shrinkage towers will be needed, each one of these will have a variation in the shrinkage speed that goes from 15 to 50 mm/s and a fixed shrinkage distance that will vary between the towers, this measure will go from 2 to 8 mm. According to the results obtained and the density of yarns presented by each configuration, the optimum calibration parameters will be determined.