A device for sealing and cutting a film in a packaging apparatus, a packaging apparatus including the device, and a process using the device are provided. The device includes first and second members, one or both of which are movable with respect to the other. One of the members includes an elongated blade, and one of the members includes a cutting means positionable in a plurality of positions. The process includes creating a first seal on a tubular film, thereby creating a semi-sealed package, creating a second seal on the semi-sealed package, thereby creating a sealed package, creating a substantially transversal cut in the tubular film, thereby separating the semi-sealed package from a subsequent portion of the tubular film, and creating an incision in a section of the first or second seal, the incision defining a pre-determined breaking zone in the tubular film of the sealed package.

Shown and described are a packaging machine and a method for producing a packaging unit from a packaging sleeve group comprising a plurality of flat folded, upright packaging sleeves, and an outer packaging. It is provided that the packaging machine comprises at least one conveyer unit for conveying the packaging sleeve group in a conveyor direction perpendicular to the longitudinal extent of the packaging group and at least one outer packaging unit for preparing an outer packaging-shaping sheet material in a base position, and in that, seen in the conveyor direction behind the sheet material in the base position, a sealing unit is provided for sealing of the sheet material enclosed in the packaging sleeve group.

A direct-to-consumer heat shrunk bundled product made up of a plurality of paper product rolls each individually packaged by a first package material and arranged relative to one another so as to form a bundle, the bundle being packaged by a second package material, wherein a substantial portion of the inner surface of the second package material is in contact with the first package material of the plurality of paper product rolls and is nonstick relative to the first package material. The bundle includes fused end seals so that the bundle does not include open gussets that might otherwise catch on machinery during sorting and shipping.

A method of shaping and compressing toilet paper rolls using compressor rollers is disclosed. The method is comprised of a workflow that includes fluted rollers, sleeve wrapping and specific packaging procedures. An object of the method is to provide a means to reduce the size of conventional toilet paper rolls in bulk to make shipping more efficient. For example, a box that currently holds twelve rolls now can hold twice as many rolls when utilizing the disclosed method.

A dehumidification device of a package thermal-shrinking oven includes at least one thermal-shrinking oven body for being combined with a packaging and conveying strip for conveying an object-to-be-packaged and having a lower portion that is provided with at least one pair of connecting portions, at least one steam conduit having a lower end connected with at least one steam device, at least one thermal isolation board mounted to an upper portion of interior of the steam conduit and enclosing two sides of the packaging and conveying strip, at least one pair of first heaters respectively mounted to two sides of exterior of the steam conduit, at least one second heater mounted to a bottom of interior of the steam conduit, and at least one pair of third heaters respectively mounted to two sides of exterior of the thermal-shrinking oven body. The connecting portions of the thermal-shrinking oven body respectively receive two sides of an upper portion of the steam conduit to connect thereto, so that hot steam generated by a steam device is introduced into the steam conduit and the first and second heaters first heat up the hot steam to become moisture-removed hot gas to be guided by the two sides of the upper portion of the steam conduit through the connecting portions into the interior of the thermal-shrinking oven body to implement a heat-shrinking packaging operation on the object-to-be-packaged located on the packaging and conveying strip, and the third heaters are operable for synchronously implementing dry and hot air heat-shrinking packaging operation in the interior of the thermal-shrinking oven body for an enhanced moisture removing effect.

A shape profile measurement device includes: a light projector and a light receiver arranged facing each other; a belt conveyor for conveying an object for measurement; and a calculation unit. The light projector includes a plurality of light-emitting portions arranged in an array direction, and each emits substantially parallel measurement light. The light receiver includes a plurality of light-receiving portions arranged in the array direction facing the plurality of light-emitting portions, and each receives the measurement light emitted from a corresponding light-emitting portion. The light-receiving portions output a signal indicating a light intensity of the received measurement light. The calculation unit acquires the signal of the light receiver when the object is at a plurality of different movement-direction positions between the light-emitting portions and the light-receiving portions, and obtains a shape profile on the basis of the signal acquired and information relating to the plurality of movement-direction positions.

A heat shrinking apparatus 1 includes: a conveyance unit 11 conveying a package 3 obtained by wrapping an object(s) 5 with a heat-shrink film 4; an endless belt 21 disposed below a conveying surface of the conveyance unit, rotating along a conveying direction of the conveyance unit; and a hot air jet unit 19(20) jetting out hot air from an inside to an outside of a belt surface of the endless belt facing the conveying surface, wherein: the endless belt has a hot air passing portion 30 extending in a belt width direction; the hot air jet unit jets out the hot air toward the conveying surface through the hot air passing portion; and the endless belt rotates following a movement of the package so that a seal portion(s) 6a(6b) provided at a front end and/or a rear end of the package is/are heat-shrunk with the hot air.

Systems and methods for shrink wrap bundling a group of heat-sensitive products are provided. A method comprises: providing a heating oven with a convective heat source and a radiant electromagnetic energy source therein and a product; and wrapping the product with a shrink film that comprises an activation temperature and an electromagnetic energy absorbance level. The method also comprises: placing the wrapped product inside the heating oven for a predetermined duration of residence time; exposing the wrapped product to radiant electromagnetic energy for a predetermined duration of exposure time, wherein the direction of the electromagnetic energy is coincidental or approximately coincidental with a plane of the shrink film; and removing the wrapped product from the heating oven resulting in the wrapped product being robustly bundled according to a defined Bundle Rigidity Test without substantial damage to the heat-sensitive products of the wrapped product.

A shrink-wrapping tunnel heater which comprises a gas heater which heats gas used to heat and shrink a shrink film onto articles, such as packages or packaging units. The heater has at least one porous burner which comprises a porous body or reactor. The porous body or reactor designed to combust fuel therein to produce heat, but without an open flame. Articles are moved through the shrink tunnel and the heated gas heats and shrinks shrinkwrap film onto the articles.

A direct gas-fired process air heater assembly that utilizes a premix burner applied to a shrink wrap conveyor oven for uniform dissemination of heated air into the a recirculating air stream of a circulating blower, said air circulating blower directing the heated air into the shrink wrap chamber or tunnel for shrinking polymer film around packaged goods for shipment and/or storage.

According to various aspects, exemplary embodiments are disclosed of the direct gas-fired packaged process air heater assembly construction features including the application of premix burner technology.