A rotary impulse sealer for forming a series of discrete bonds in a bondable material. The rotary impulse sealer has a roller rotatable about an axis. The roller has a roller body and a plurality of seal bars extending radially outwardly from the roller and spaced apart around the roller body. At least one of the seal bars has a body and a selectively heatable heating element extending along at least a part of a length of the seal bar body. The roller is rotatable through a pre-heating pressure application region in which the at least one seal bar is adapted to apply pressure to a bond area of the bondable material, followed by a heating region in which the at least one seal bar is adapted to heat the bond area, the regions being stationary with respect to the rotation of the roller. A method of forming packages containing fluid or fluent material includes continuously providing at least two sheets of bondable material having a fluid or fluent material therebetween, applying pressure to a transverse bond area of the bondable material to force the fluid or fluent material away from the transverse bond area, and heating the transverse bond area to form a seal.

A sealing device generally includes a rotatable support cylinder having an outer, circumferential surface and a heating element disposed about such surface and secured thereto such that the heating element rotates therewith. The heating element is coiled about the outer surface of the cylinder in the form of an overlapping helical pattern. Juxtaposed film plies may be sealed together by bringing the sealing device into rotational contact with the juxtaposed film plies and heating the heating element to a temperature sufficient to cause the film plies to seal together.

The present disclosure generally relates to devices and methods for furniture protection. More particularly, the present disclosure relates to foam-film sheets configured to protect furniture from damage. An exemplary foam-film sheet as disclosed herein includes a sheet of foam material having a first lateral edge and a second lateral edge; a sheet of film material having a first lateral edge and a second lateral edge; a first seal between a portion of the foam material proximate its first lateral edge and a portion of the film material proximate its first lateral edge; and a second seal between a portion of the foam material proximate its second lateral edge and a portion of the film material proximate its second lateral edge, wherein the film and foam are substantially unsealed along the entire transverse width between the first and second sealed portions near the lateral edges of the foam material.

The invention relates to a pressure unit (1) for sealing a package (2) for a food product, comprising a conveyor (3) for transporting the package (2) through the pressure unit (1) in a travelling direction (d), a first rotatable pressure roller (11) and a first rotatable anvil roller (21). The first pressure roller (11) is arranged opposite to the first anvil roller (21) to form a first nip (4) for receiving and rotationally engage with a portion (5) of the package, and arranged downstream of the first pressure roller (11) and the first anvil roller (21) in the travelling direction, a second rotatable pressure roller (12) and a second rotatable anvil roller (22). The second pressure roller (12) is arranged opposite to the second anvil roller (22) to form a second nip (6) for receiving and rotationally engage with the portion (5) of the package. The first anvil roller (21) and the second anvil roller (22), respectively, has a smooth rim surface (25). The first pressure roller (11) comprises a first bulge (15) extending annularly around its rim surface (18), the second pressure roller (12) comprises a second bulge (16) extending annularly around its rim surface (19), and the first bulge (15) is offset in relation to the second bulge (16) in an axial direction (7) of said first pressure roller (11) and the second pressure roller (12).

A system (300) for closing mailers includes a forming funnel (320) and a fusing device (310). The forming funnel includes funneling surfaces that receive an opening of a mailer in an insertion direction (302) and constrain the opening of the mailer after the opening of the mailer is inserted. The funneling surfaces are arranged to continue constraining the opening of the mailer as the mailer moves in a sliding direction (304). The fusing device includes a slot that receives the constrained opening of the mailer from the forming funnel. The fusing device applies pressure and heat to the opening of the mailer as the opening of the mailer moves through the slot. The pressure and the heat applied by the fusing device cause portions of the opening to fuse together to close the mailer.

Methods for deforming a multilayer web are disclosed. Steps of the method include: supplying a first layer of a precursor web; supplying a second layer of the precursor web onto at least the first area of the first layer; forming a plurality of first features and a plurality of second features in the precursor web. The plurality of first features are apertures formed in a first area of the precursor web, and the plurality of second features are formed in a second area of the precursor web in a positive and/or negative Z-direction. The plurality of first features and the plurality of second features are formed simultaneously.

A horizontal pillow packing apparatus includes a center sealer configured to wrap a packing target object by bringing both end portions of a back surface of a belt-shaped film in a width direction into contact with each other and seal a center seal portion at which the both end portions of the back surface in the width direction are in contact with each other, and an end sealer configured to seal and cut both side portions of the belt-shaped film wrapping the packing target object in the width direction. The center sealer includes at least two pairs of heating rollers configured to nip and heat the center seal portion of the belt-shaped film wrapping the packing target object, and a pair of compression rollers configured to cool and compress, to bond the center seal portion, the center seal portion heated by the at least two pairs of heating rollers.

A method for manufacturing a metal-clad laminate sheet including forming a laminate sheet having the thermoplastic liquid crystal polymer film and the metal foil bonded together; and providing the laminate sheet with a heat treatment which satisfies conditions (1) and (2) below: (1) a heat treatment temperature ranges between 1° C. inclusive and 50° C. exclusive higher than a melting point of the thermoplastic liquid crystal polymer film. (2) a time for the heat treatment ranges from one second to 10 minutes.

The methods herein relate to assembling an elastic laminate with a first elastic material and a second elastic material bonded between first and second substrates. During assembly, an elastic laminate may be formed by positioning the first and second substrates in contact with stretched central regions of the first and second elastic materials. The elastic laminates may include two or more bonding regions that may be defined by the various layers or components of the elastic laminate that are laminated or stacked relative to each other. In some configurations, a first plurality of ultrasonic bonds are applied to the elastic laminate to define a first bond density in the first bonding region, and a second plurality of ultrasonic bonds are applied to the elastic laminate to define a second bond density in the second bonding region, wherein the second bond density is not equal to the first bond density.

A protective packaging formation device is provided herein. The device includes an inflation assembly having a fluid conduit that directs fluid between overlapping plies of a polymeric web. The device also includes a driving mechanism that drives the film in a downstream direction. The device also includes a sealing mechanism that includes a thin film heater that heats the plies to create a longitudinal seal that seals the plies of film together. The driving mechanism drives the web such that the web slides across the heating assembly in a downstream direction to trap fluid between the plies.