UNIFORMITY AND PRODUCT IMPROVEMENT IN LYOCELL FABRICS WITH HYDRAULIC FLUID TREATMENT

摘要

A suede-like micro-fibril finish is imparted to fibrillatable cellulosic materials by open width hydraulic treatment, such as with a hydraulic apparatus line (10). The production line includes pre-treatment stations for the fabric (12), such as roll feed table (46), unwind station (14), scray (16), edge guide (18), saturator (20), washer or scouring stations (22, 24) and pre-tenter station (26). Following the pre-treatment, the fabric is advanced through hydraulic treatment modules (30, 32) which include fluid curtain (34), columnar fluid jets (35), endless conveyor (48) driven by rollers (50), planar support members (52, 54) and spaced manifolds (56). The fabric is then advanced to post-treatment stations which include weft straighteners (40, 42), padder station (36), vacuum extractor station (44), frame dryer (38), inspection stations (72, 74), fabric accumulator (76), operator inspection station (78), and fabric wind-up station (80).