A melting heater configured to melt joining end surfaces of a pair of semi-molded products in a case where the joining end surfaces are melted and joined to manufacture a molded product, the melting heater including: two glass plates arranged in parallel to each other; and a plurality of element heaters arranged in a unit having a flat plate shape as a whole between the two glass plates, in which the glass plate is subjected to surface processing for controlling infrared rays emitted from the plurality of element heaters.

A method and apparatus can be used for vacuum skin packaging of a product. The product can be arranged on a support comprising providing a film sheet above said support with said product being arranged between the support and the film sheet. The film sheet can be air tightly fixed to the support. The wall of the support can be perforated to form at least one through hole. At least a portion of air from within the support underneath said film sheet can be removed through the at least one hole. A packaged product is obtainable using the method and apparatus.

The invention is directed to a thermoforming packaging machine (1) for producing sealed packages (2) having a planar surface (3) and a shaped recess (4) comprising a sealing station (6) with a lower sealing tool (7) comprising of a first part (8) provided with a first seal seam support (8a) for supporting a first sealed seam (9) at the outer perimeter (10) of the planar surface (3) of the moulded product (2a) and a second part (11) provided with a second support (11a) provided with a seal seam support opening (12). The second support (11a) supports a second sealed seam (12a) on the planar surface (3) of the moulded product (2a) following the perimeter (13) of the shaped recess (4). The first part (8) and the second part (11) are separate parts which are detachable connected.

The invention relates to a method (100) for manufacturing a fastening arrangement for fastening a collar to a tube. The method comprises the steps of providing a hollow tube (10), arranging said tube for receiving at least one forming punch (30) in the axial direction of the tube, punching the tube with a forming punch at an inner radial part of an edge portion (16) of the tube in the axial direction of the tube, locally reducing the tube thickness, so that the material being punched is plastically relocated in the axial direction, locally forming a snap portion (11) in the form of a flange (12) in the radial direction towards the hollow inside of the tube, providing a collar (20) configured to be arranged on the tube, wherein the collar comprises at least one receiving portion (21) arranged to receive said snap portion, and arranging the collar to the tube such that the snap portion engages with said receiving portion.

A method and apparatus can be used for vacuum skin packaging of a product. The product can be arranged on a support comprising providing a film sheet above the support with the product being arranged between the support and the film sheet. The film sheet can be air tightly fixed to the support. The wall of the support can be perforated to form at least one through hole. At least a portion of air from within the support underneath the film sheet can be removed through the at least one hole. A packaged product is obtainable using the method and apparatus.

A machine comprising: a flexible band (1) unwinding unit (11), a flexible band (1) folding unit (14), a drive unit (31) for moving the flexible band (1) in a forward movement direction (DA), a welding unit (16) and a laser beam cutting unit (53) for separating each individual flexible package from the flexible band (1) and for providing a fill opening in each flexible package by at least one fill opening cut, the laser beam cutting unit (53) having associated therewith a separator device, movable in a vertical direction and including an insertable separator element (41), interposed between the opposite faces of the folded flexible band (1), in an area adjacent to the fill opening (3), for separating the opposite faces of the flexible band (1) during cutting operations to prevent the fusion thereof.

The present invention relates to a flexible container (10). In an embodiment, the flexible container includes a first flexible film (12) superimposed on an opposing second flexible film (14). The first flexible film and the second flexible film are sealed along a common peripheral edge (16) to form an inner container having a closed chamber. The first flexible film and the second flexible film each has an outermost layer comprising an ethylene-based polymer. Each outermost layer is a surface-treated layer having a surface energy from 33 mN/m to 36 mN/m. The flexible container includes a peel sleeve (22, 24) superimposed on each respective outermost layer and along the common peripheral edge. The flexible container includes a release material (26) located between the peel sleeve and each outermost layer along the common peripheral edge. The release material releasably attaches the peel sleeve to the inner container.

The invention relates to a welding tool and to a method for pulse welding of plastic films for medical packs formed as bags. In general, the invention provides that the film material which is plastified during welding and thus free-flowing is specifically displaced into a deepened, edge-side inner region of the sealing surface by increasing the sealing surface area. The film material accumulated in the recess leads to an increase in the film thickness in the inner region (25i) of the weld seam (6, 7, 8). As a result, the mechanical stability of the medical pack formed as a bag can be improved.

A cultivation bag assembly for the cultivation of microbes, fungi and other organisms includes an inner bag for containing a food substrate and an organism to be cultivated. At least one wall of the inner bag is constructed of a layer of water-vapor permeable material. An outer bag of the assembly has first and second walls formed from gas impermeable layers. At least one of the first and second walls of the outer bag has a gas filter patch to allow the passage of oxygen and carbon dioxide gases into and out of the interior of the inner bag to facilitate incubation of the organism within the interior of the inner bag. The inner bag and outer bag are coupled together at a first end of each of the inner bag and outer bag.

A seal head assembly includes a plurality of heat seal plates defining a corresponding plurality of heating areas, each heat seal plate including a heating element to independently control the temperature of the corresponding heating area.