摘要:
The vertical form fill and seal (VFFS) machine is configured to place a fitment, such as a spout, on the longitudinal fin seal of a container. The fitment dispatched from a vibratory bowl via an adjustable track. The fitment is then secured to the edges of the film by longitudinal sealing bars and the edges of the film are likewise secured to each other by the longitudinal sealing bars sealing bars thereby forming a longitudinal fin seal. Depressions are machined in the machine direction center of the sealing bars in order to accommodate the shape of the fitment. The film is drawn over an oversized collar and an undersized tube so as to create excess film in order to form gussets providing a stand-alone capability.
摘要:
A flexible plastic fitment for providing spouts for pouches formed of sheet material. The fitment includes a pair of opposed side walls each having a center portion formed from diametrically opposed segments of a common cylinder and straight segments that blend respectively into the cylindrical segments on opposite sides of the common cylinder. The side walls are joined together at both ends thereof to form a canoe shape. A cover, which provides the only support for the side walls joins the top edges of the canoe shape and extends at both ends of the canoe shape between the cylindrical segments and the joined ends. A thin fin extends from each end of the joined side walls. A method of and apparatus for attaching the fitment by distending the side walls outwardly while urging the sheet material toward the side walls is also disclosed.
摘要:
A fitment has walls with a spout aperture therebetween. Reduced wall thickness results in a reduced amount of plastic in the fitment. An alternative embodiment uses radially extending meltable fins. During installation in asealing apparatus, a heated mandrel engages the inner diameter of the spout aperture thereby pre-heating and physically supporting the fitment during the installation process. The heated mandrel typically engages the fitment at least one cycle prior to be installed. The fitment may be canoe-shaped.
摘要:
A zipper assembly is provided having first and second interlocking members respectively on first and second base strips. A first connect strip is secured to the first base strip and a second connect strip is secured to the second base strip. An extension of the second connect strip extends beyond the first connect strip when the interlocking members are engaged and a peel-sealable material is provided on the extension. A bag incorporating the zipper has the first connect strip attached to a first bag wall, the second connect strip attached to an opposite bag wall and the peels sealable material sealed to the first bag wall. A slider may be provided about the interlocking members.
摘要:
A zipper assembly is provided having first and second interlocking members respectively on first and second base strips. A first connect strip is secured to the first base strip and a second connect strip is secured to the second base strip. An extension of the second connect strip extends beyond the first connect strip when the interlocking members are engaged and a peel-sealable material is provided on the extension. A bag incorporating the zipper has the first connect strip attached to a first bag wall, the second connect strip attached to an opposite bag wall and the peels sealable material sealed to the first bag wall. A slider may be provided about the interlocking members.
摘要:
A zipper strip for a reclosable package having a transverse zipper is provided. The zipper strip comprises a male interlocking profile and a female interlocking profile. Each profile includes an interlocking member and an integral web which defines a trailing flange. One or both of the profiles are provided with high compression members which allow one or both of the interlocking members to be sealed to thermoplastic film without being crushed or distorted.
摘要:
A reclosable plastic pouch has a first elongated zipper member having a profile and a flange having a longitudinal perforation therein. The flange is above the profile and attached to one wall of the pouch above and below the perforation line and to the opposite wall of the pouch only above the perforation line. A mating profile is attached only to the opposite wall of the pouch below the perforation line. A notch at an edge of the pouch, aligned with the perforation line, facilitates the plastic to tear along the perforation line so that the portion of the pouch above the perforation line may be readily removed.