摘要:
Methods of making slide-zippered reclosable packages are provided. In one embodiment, a pair of opposing film extensions are provided on each package between which a zipper and slider are attached. In another embodiment, sliders are inserted on to zippered packages output from a form-fill-seal machine or the like. In yet another embodiment, during package formation a reclosable zipper is sealed to each package and then a slider is inserted on to the zipper. In yet another embodiment, during package formation a reclosable zipper is sealed to each package and a slider is inserted on to each zipper, either before or after zipper sealing.
摘要:
A slide zipper assembly comprising an interlocked zipper and a slider is provided. The zipper has a first profile and a second profile. The profiles have arms ending in hooks that are engaged when the zipper is in a closed position. The slider is disposed for movement along the zipper. The slider has an opening end and a closing end. At the opening end the slider has a separator that extends downwardly to engage a profile arm to bend the same so that its hook disengages from the hook of the opposite profile.
摘要:
A slide zipper assembly comprising an interlocked zipper and a slider is provided. The zipper has a first profile and a second profile. The profiles have arms ending in hooks that are engaged when the zipper is in a closed position. The slider is disposed for movement along the zipper. The slider has an opening end and a closing end. At the opening end the slider has a separator that extends downwardly to engage a profile arm to bend the same so that its hook disengages from the hook of the opposite profile.
摘要:
A method for attaching reclosable zipper strips transversely to thermoplastic film material which may be used to make reclosable bags or packages in a form-fill-seal machine is claimed. The zipper strip includes a male profile and a female profile. The male profile includes a male interlocking member and an integral web comprising a trailing flange and, optionally, a leading flange. Likewise, the female profile includes a female interlocking member and an integral web comprising a trailing flange and, optionally, a leading flange. As the film material is advanced into the form-fill-seal machine in bag length increments, the interlocked zipper strip is disposed on the film material transversely thereto with the trailing flange oriented in a direction opposite to the motion of the film material. The zipper strip is then sealed to the film material at its extremities. In this manner the male and female profiles are sealed to each other and to the film material. The sealing may be continuous or may take the form of spot seals.
摘要:
A method and apparatus for manufacturing reclosable bags having slide zippers on a form-fill-seal (FFS) machine is provided. In a first embodiment a coil of sliders is fed to an insertor mechanism for applying the slider downstream of a coil of zipper. In a second embodiment a magazine of individual or connected sliders is used to feed the slider insertor mechanism. In a third embodiment bulk sliders are introduced into a vibratory feeding bowl which then orients and feeds the sliders to the slider insertor mechanism. The slider insertor mechanism may be upstream of the FFS machine or at the FFS machine upstream or downstream of the sealing bars used to seal the zipper the bag film. The zipper flanges may be provided with a peel seal layer to provide a hermetic and/or tamper evident seal for the bag.
摘要:
A zipper strip for a reclosable bag or package includes a male interlocking profile and a female interlocking profile. The male interlocking profile includes a male interlocking member and a male web coextruded therewith. In like manner, the female interlocking profile includes a female interlocking member and a female web. The male interlocking member snappingly engages into the female interlocking member to join the profiles to one another. One of the male and female webs is wider than the other in at least one of two directions from the male and female interlocking members, the greater width being represented by at least one flange extending widthwise beyond the other web. The zipper strip is designed to be attached to thermoplastic sheet material by sealing the at least one flange thereto without sealing the male and female webs to each other. Methods for securing the zipper strip to thermoplastic sheet material, and for making packages on a horizontal form-fill-and-seal machine, are also disclosed.
摘要:
A zipper strip for a reclosable bag or package includes a male interlocking profile and a female interlocking profile. The male interlocking profile includes a male interlocking member and a male web coextruded therewith. In like manner, the female interlocking profile includes a female interlocking member and a female web. The male interlocking member snappingly engages into the female interlocking member to join the profiles to one another. One of the male and female webs is wider than the other in at least one of two directions from the male and female interlocking members, the greater width being represented by at least one flange extending widthwise beyond the other web. The zipper strip is designed to be attached to thermoplastic sheet material by sealing the at least one flange thereto without sealing the male and female webs to each other. Methods for securing the zipper strip to thermoplastic sheet material, and for making packages on a horizontal form-fill-and-seal machine, are 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 a sealing 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 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 leading flange. The leading flanges are sealed to thermoplastic film material which is used to make the reclosable packages and to each other. A perforation extends along the length of the zipper strip so that the profiles can be readily separated.
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 leading flange. The leading flanges are sealed to thermoplastic film material which is used to make the reclosable packages and to each other. One of leading flanges is provided with a perforation along its length so that it can be separated by pulling the profiles apart.