| 摘要 |
FIELD: process engineering.SUBSTANCE: proposed method represents automated production and fitting barrier inserts from flexible laminated film in packing tube shoulders/spouts. Shoulders/spouts are made and oriented so that spout opening faces laminated film. Film is fed to station that forms spout aperture, cutting laminated film to fit it in shoulder/spout face and inserting said film in shoulder/spout. Laminated film may be jointed by heat-sealing at said station or at next station of heat-sealing. Thereafter, station for defining accuracy of film fitting in shoulder/spout may be used. Said station may be arranged behind the next station of heat-sealing. Then, shoulders/spouts with sealed insert of laminated film are fed to tube production process. Laminated film will have polymer layer and barrier layer containing copolymers of ethylene-vinyl alcohol, PET polymers, polyethylene naphthalate and copolymers of acrylonitrile and methyl acrylate. Said tubes are intended for tube paste packages.EFFECT: efficient use, simplified equipment.20 cl, 8 dwg |
