Size application to yarn sheet, has pre-wetting carried out by inlet tension rollers arranged to perform a multifunction of pre-wetting and squeezing

摘要

A yarn sheet (3) is fed to a size applicator (2) through an inlet tension arrangement (1) which also performs the additional function of applying a pre-wetting agent (10,14), e.g. water at 85 deg C, and squeezing (7,15,16) the yarn sheet. The free path (17) to the size applicator is kept as short as possible and has a cover (19) to prevent heat loss.