B29C66/135

Method of Controlling Air Temperature for Making Seals

A method and apparatus for making bags from a film that follows a film path through a bag machine includes an input section located on the film path, a sealing section located on the film path down stream of the input section, an output section located on the film path downstream of the sealing section, and a controller, connected to control the sealing section. The sealing section includes a sealer that includes a heater block and a manifold. There is an air flow path from the heater block to the manifold. Air is heated in the heater block in response to a control signal provided by the controller to the heater block. The heated air is provided through the air path to the manifold. A temperature sensor is disposed in at least one of the air path and the manifold.

Method of making a retort container
10399139 · 2019-09-03 · ·

A method is described for making a retort container having one or two metal ends. A heat-sealable material is present on one or both of the container side wall and the/each metal end. The/each metal end is seamed onto the container body, and the resulting container assembly is conveyed on a conveyor adjacent to an induction sealing head and then adjacent to a cooling device. A pressure belt engages the upper end of the container assembly to keep the metal end from coming off the container body during the induction heating and cooling processes.

TRIM COMPONENT FOR COVERING AN INTERIOR SPACE OF A MEANS FOR TRANSPORTING PASSENGERS AS WELL AS METHOD FOR PRODUCING SUCH A TRIM COMPONENT
20190255747 · 2019-08-22 · ·

The present invention relates to trim component for covering an interior space of a means for transporting passengers, in particular of a vehicle, comprising a support element which has at least one separation surface and at least one edge-folded section abutting the separation surface, wherein the support element has at least one folded edge which includes at least one edge-folded section. Moreover, the present invention relates to a method for producing such a trim component.

Catheters with lubricious linings and methods for making and using them
10369327 · 2019-08-06 · ·

Apparatus and methods are provided for creating tubular devices, e.g., as components for catheters, sheaths, and or other devices sized for introduction into a patient. In one embodiment, a method is provided for making a tubular device using a sheet of material including a coated first surface. The sheet is rolled around a mandrel until longitudinal edges of the sheet are disposed near or adjacent one another, e.g., without attaching the longitudinal edges together. A tubular braid is positioned over the sheet-wrapped mandrel, one or more tubular segments are positioned over the tubular braid, and heat shrink tubing is positioned over the tubular segments. The resulting assembly is heated to cause the tubular segments to at least partially reflow and/or otherwise laminate the tubular segments to the tubular braid and sheet. The heat shrink tubing and mandrel are then removed to create the tubular device.

DEVICE, IN PARTICULAR FOR CLOSING A TOP PORTION OF A FOOD CONTAINER, CONSISTING OF A LAMINATE WITH A PEELED AND FOLDED-BACK EDGE REGION
20190233150 · 2019-08-01 ·

The invention relates to a device comprising a first fixing element, comprising a first fixing surface, a further fixing element, comprising a further fixing surface, and a folded planar composite, at least partially fixed between the first fixing surface and the further fixing surface; wherein the folded planar composite comprises a first composite region and a further composite region; wherein the first composite region comprises a first layer sequence, comprising, from the further fixing surface to the first fixing surface, a first composite layer, a second composite layer, a third composite layer and a fourth composite layer; wherein the further composite region comprises a further layer sequence, comprising, from the further fixing surface to the first fixing surface, the first composite layer, the second composite layer and the fourth composite layer; wherein the first composite layer comprises a first carrier layer, the second composite layer a second carrier layer, the third composite layer a third carrier layer, and the fourth composite layer a fourth carrier layer; wherein, in the first composite region, the first or the fourth carrier layer or each of both is characterised by a greater layer thickness than the second or the third carrier layer or each of both and in the further composite region the second carrier layer is characterised by a greater layer thickness than in the first composite region; wherein the further fixing surface comprises a recess and the first composite region and the further composite region are each at least partially located between the recess and the first fixing surface.

Process for Producing Ultrasonic Seal, and Film Structures and Flexible Containers with Same
20190232613 · 2019-08-01 ·

The present disclosure is directed to processes for producing ultrasonic sealable film structures and flexible containers with ultrasonic seals. The film structure includes a first multilayer film and a second multilayer film. Each multilayer film includes a backing layer and a seal layer. Each seal layer includes an ultrasonic sealable olefin-based polymer (USOP) having the following properties: (a) a heat of melting, Hm, less than 130 J/g, (b) a peak melting temperature, Tm, less than 125 C., (c) a storage modulus in shear (G) from 50 MPa to 500 MPa, and (d) a loss modulus in shear (G) greater than 10 MPa.

The multilayer films are arranged such that the seal layer of the first multilayer film is in contact with the seal layer of the second multilayer film. The seal layers form an ultrasonic seal having a seal strength from 30 N/15 mm to 80 N/15 mm when ultrasonically sealed at 4 N/mm seal force.

LOAD BEARING STRUCTURE
20190225370 · 2019-07-25 ·

The present invention provides a movable load bearing structure with a surface that includes antimicrobial agents capable of eliminating, preventing, retarding or minimizing the growth of microbes and also minimizing cross-contamination when the load bearing structure is being reused for cargoes that differ from a previously transported cargo, for example, different food types, such as poultry, fresh vegetables, and fresh fruit. The load bearing structure may be a dunnage platform or a container for storing and/or shipping cargo.

DEVICE AND METHOD FOR PRODUCING PACKAGING PRECURSORS BY MEANS OF A HEATING DEVICE ACTING ON THE EDGE AREA OF THE PACKAGING PRECURSOR
20190193341 · 2019-06-27 ·

The invention relates in general terms to a device for production of a packaging precursor, wherein the packaging precursor consists to an extent of at least 80% by weight, based on the packaging precursor (1000), of a sheetlike composite, wherein the sheetlike composite includes: i. a composite plastic layer, ii. a composite carrier layer, iii. a first composite edge region, iv. a second composite edge region, wherein the device includes, as device constituents in a flow direction: a) a flat transport unit designed to transport the flat sheetlike composite, wherein the transport unit includes a transport surface designed to bear the composite; downstream of that b) a first heating unit designed to heat the first composite edge region, where the first heating unit includes energy release segments; downstream of that c) a contacting unit designed to bond the first composite edge region to the second composite edge region;
wherein the first heating unit is designed to release energy in the flow direction. The invention further relates to a method, to a packaging precursor obtainable by the method, to a packaging precursor and to a use of the device.

Reinforced bag seam and method for making same
10315804 · 2019-06-11 ·

A method for making a film bag with reinforced bag seams includes a film extruder that produces a continuous tube of film. A flattener produces a continuous web of flattened film which has an upper surface and a lower surface. A fold maker has a receiving portion positioned above the web and a displacing portion is positioned below the web that moves cyclically upward to a first position to locate a portion of the web into the receiving portion, thereby forming a fold. A fold retention device prevents the fold from opening. A presser flattens the fold against the web. A sealer seals through the fold, forming a reinforced bag seam. A cutter severs a sealed portion from an unsealed portion of the web. A transport mechanism moves the film from the extruder, through the flattener, into the fold maker, beneath the presser, into the sealer and to the cutter.

LIQUID-IMPERMEABLE STITCHING METHOD FOR SEAM OF VAPOR-PERMEABLE VIRUS-BARRIER FABRIC
20190168465 · 2019-06-06 ·

A fluid impervious stitching method for a seam of a vapor-permeable virus-barrier laminate. The laminate comprises: at least one thermoplastic resin fiber layer; at least one vapor-permeable virus-barrier thermoplastic elastomer film layer; and a bonding layer located between the two layers and formed of an adhesive capable of being fused with the two layers. In the stitching method, overlapping or stacking is performed to form a seam, and heat sealing is performed on the laminate at the seam. The temperature of heat sealing is higher than the melting point of a material layer having the highest melting point in the laminate, but lower than the temperature at which perforation or decomposition occurs in any material layer in the laminate. The heat-stitched seam has excellent windproof, vapor-permeable, virus barrier and liquid-barrier performance, has a smooth appearance without wrinkles, and feels soft. Also provided is a protective textile product prepared by means of the stitching method.