| 摘要 |
FIELD: textile fabrics, paper. ^ SUBSTANCE: method is intended for manufacture of nonwoven articles of three-dimensional configuration from fiber mass. In process of method realisation fibers are deposited on surface of solid-state shapes with production of moist product in lower solid-state shape on mesh insert. Growth of fiber material by water filtration from fiber mass is done due to pressure difference, moisture removal, and vacuum pumping from upper solid-state shape. Simultaneously to drying product is prepressed. Lower and upper solid-state shapes are perforated. Fiber mass used is natural textile fabrics with separated fibers 5-75 mm long and short cellulose fiber in ratio of wt % (65-95):(5-35) accordingly. After drying article is treated by urethane oligomer in solution of hydrocarbon chloride or mixture of hydrocarbon chlorides with concentration of 1-65 wt %. ^ EFFECT: production of cheap molded nonwoven articles of three-dimensional configuration with high-quality surface, which possess high strength and noise absorption and low heat conductivity, which may be widely used for vehicle cabin and in construction. ^ 8 ex, 1 tbl |
